launchtool-0.8/0000777000175000017500000000000011225107530010532 500000000000000launchtool-0.8/README0000644000175000017500000000551211225104064011330 00000000000000 * launchtool README Launchtool is a bit like start-stop-daemon. The differences are: - launchtool is more featureful; - start-stop-daemon is more tested. Ideally, features should be ported from launchtool to start-stop-daemon. The best way to do so, is to remove daemonisation and pidfile features from launchtool and just turn it into an application wrapper that handles restart policies and logging. Features that are already in start-stop-daemon: -k, --kill[=signal] --check -d, --daemon, “daemon” -n, --no-daemon --pidfile, “pidfile” --no-pidfile --piddir=dir, “piddir” --chroot=dir, “root dir” --chdir=dir, “start dir” -u, --user=user, “user” -g, --group=group, “group” --umask=mask, “umask” Features that can be implemented in a simple wrapper/supervisor command: -L, --infinite-runs, “infinite runs” --no-infinite-runs --wait-times=t1,t2,... , “wait times” --good-running-time=seconds, “good running time” --forwarded-signals=sig1,sig2,... , “forwarded signals” --blocked-signals=sig1,sig2,... , “blocked signals” --limit-cpu=seconds, “cpu limit” --limit-file-size=1024b-blocks, “file size limit” --limit-data-memory=1024b-blocks, “data memory limit” --limit-process-count=count, “process count limit” --limit-open-files=count, “open files limit” --limit-core-size=1024b-blocks, “core size limit” --restrict-environment, “restrict environment” --no-restrict-environment --allowed-env-vars=var1,var2,... , “allowed env vars” --log-launchtool-output=target, “launchtool output” --log-launchtool-errors=target, “launchtool errors” --log-child-output=target, “command output” --log-child-errors=target, “command errors” --silent-restart-status=value, “silent restart status” --silent-restart-time=seconds, “silent restart time” --stats, “stats” --no-stats Other TODO items: - Port to wibble. - Improve commandline help: give a summary of the kind of options and implement --help-something subpages to avoid cluttering the screen presenting them all in a single run - Improve environment management; see if there's a "proper" way to create a clean environment - Add an option to directly execute command and arguments instead of passing them to sh -c I do not know when I will have time to dedicate to launchtool. Most of the work should be rather straightforward, as it's based on the existing code. Also, most of the code in common/ is now maintained in the wibble library and can just be dropped. Please feel free to send patches, to offer to comaintain or take over maintainership. Enrico Zini launchtool-0.8/Makefile.am0000644000175000017500000000020311225104074012475 00000000000000## Process this file with automake to produce Makefile.in SUBDIRS = . src dist_man_MANS = launchtool.1 EXTRA_DIST = README NEWS launchtool-0.8/ChangeLog0000644000175000017500000000313207620757660012242 000000000000002003-02-07 Enrico Zini * ChildProcess.cc * Config.cc * LoggerMethods.cc * Regex.cc Removed default values from function parameters, to make them compilable by g++ 3.2 (thanks to Tsuyoshi GEMMA and Andres Salomon) * Exception.cc When execinfo.h is not available, provide an alternative `unexpected' function * configure.ac Added check for execinfo.h (not present with uClibc) (VERSION) updated to 0.7 2002-11-25 Enrico Zini * LaunctoolOutput.cc corrected parser for syslog logging parameters * configure.ac (VERSION) updated to 0.6 2002-10-17 Enrico Zini * ChildProcess.cc Child process closes pipes after dup2() * MultiReader.cc Corrected and simplified the reading algorithm. Not it does not require nonblocking I/O set on the FD * configure.ac (VERSION) updated to 0.5 2002-10-08 Enrico Zini * launcher.cc * Multireader.h * Multireader.cc Changed the algorithm to read the child output: now it does not hang calling select on filehandles in eof state. * configure.ac (VERSION) updated to 0.4 2002-10-03 Enrico Zini Renamed launcher in launchtool to prevent a name clash with another existing tool * configure.ac (PACKAGE) changed to launchtool (VERSION) updated to 0.3 2002-10-03 Enrico Zini * launcher.cc Corrected wrong handling of wait_times and next_delay that caused the --infinite-runs options not to work correctly. * launcher.1 Corrected the conjugation of a verb... sorry: I not am inglish. * configure.ac (VERSION) updated to 0.2 launchtool-0.8/configure0000755000175000017500000071403511225104353012367 00000000000000#! /bin/sh # Guess values for system-dependent variables and create Makefiles. # Generated by GNU Autoconf 2.63. # # Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, # 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. # This configure script is free software; the Free Software Foundation # gives unlimited permission to copy, distribute and modify it. ## --------------------- ## ## M4sh Initialization. ## ## --------------------- ## # Be more Bourne compatible DUALCASE=1; export DUALCASE # for MKS sh if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then emulate sh NULLCMD=: # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which # is contrary to our usage. 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So we exec the FD to /dev/null, # effectively closing config.log, so it can be properly (re)opened and # appended to by config.status. When coming back to configure, we # need to make the FD available again. if test "$no_create" != yes; then ac_cs_success=: ac_config_status_args= test "$silent" = yes && ac_config_status_args="$ac_config_status_args --quiet" exec 5>/dev/null $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false exec 5>>config.log # Use ||, not &&, to avoid exiting from the if with $? = 1, which # would make configure fail if this is the last instruction. $ac_cs_success || { (exit 1); exit 1; } fi if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then { $as_echo "$as_me:$LINENO: WARNING: unrecognized options: $ac_unrecognized_opts" >&5 $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;} fi launchtool-0.8/INSTALL0000644000175000017500000002622211225104354011504 00000000000000Installation Instructions ************************* Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. This file is free documentation; the Free Software Foundation gives unlimited permission to copy, distribute and modify it. Basic Installation ================== Briefly, the shell commands `./configure; make; make install' should configure, build, and install this package. The following more-detailed instructions are generic; see the `README' file for instructions specific to this package. The `configure' shell script attempts to guess correct values for various system-dependent variables used during compilation. It uses those values to create a `Makefile' in each directory of the package. It may also create one or more `.h' files containing system-dependent definitions. Finally, it creates a shell script `config.status' that you can run in the future to recreate the current configuration, and a file `config.log' containing compiler output (useful mainly for debugging `configure'). It can also use an optional file (typically called `config.cache' and enabled with `--cache-file=config.cache' or simply `-C') that saves the results of its tests to speed up reconfiguring. Caching is disabled by default to prevent problems with accidental use of stale cache files. If you need to do unusual things to compile the package, please try to figure out how `configure' could check whether to do them, and mail diffs or instructions to the address given in the `README' so they can be considered for the next release. If you are using the cache, and at some point `config.cache' contains results you don't want to keep, you may remove or edit it. The file `configure.ac' (or `configure.in') is used to create `configure' by a program called `autoconf'. You need `configure.ac' if you want to change it or regenerate `configure' using a newer version of `autoconf'. The simplest way to compile this package is: 1. `cd' to the directory containing the package's source code and type `./configure' to configure the package for your system. Running `configure' might take a while. While running, it prints some messages telling which features it is checking for. 2. Type `make' to compile the package. 3. Optionally, type `make check' to run any self-tests that come with the package. 4. Type `make install' to install the programs and any data files and documentation. 5. You can remove the program binaries and object files from the source code directory by typing `make clean'. To also remove the files that `configure' created (so you can compile the package for a different kind of computer), type `make distclean'. There is also a `make maintainer-clean' target, but that is intended mainly for the package's developers. If you use it, you may have to get all sorts of other programs in order to regenerate files that came with the distribution. 6. Often, you can also type `make uninstall' to remove the installed files again. Compilers and Options ===================== Some systems require unusual options for compilation or linking that the `configure' script does not know about. Run `./configure --help' for details on some of the pertinent environment variables. You can give `configure' initial values for configuration parameters by setting variables in the command line or in the environment. Here is an example: ./configure CC=c99 CFLAGS=-g LIBS=-lposix *Note Defining Variables::, for more details. Compiling For Multiple Architectures ==================================== You can compile the package for more than one kind of computer at the same time, by placing the object files for each architecture in their own directory. To do this, you can use GNU `make'. `cd' to the directory where you want the object files and executables to go and run the `configure' script. `configure' automatically checks for the source code in the directory that `configure' is in and in `..'. With a non-GNU `make', it is safer to compile the package for one architecture at a time in the source code directory. After you have installed the package for one architecture, use `make distclean' before reconfiguring for another architecture. On MacOS X 10.5 and later systems, you can create libraries and executables that work on multiple system types--known as "fat" or "universal" binaries--by specifying multiple `-arch' options to the compiler but only a single `-arch' option to the preprocessor. Like this: ./configure CC="gcc -arch i386 -arch x86_64 -arch ppc -arch ppc64" \ CXX="g++ -arch i386 -arch x86_64 -arch ppc -arch ppc64" \ CPP="gcc -E" CXXCPP="g++ -E" This is not guaranteed to produce working output in all cases, you may have to build one architecture at a time and combine the results using the `lipo' tool if you have problems. Installation Names ================== By default, `make install' installs the package's commands under `/usr/local/bin', include files under `/usr/local/include', etc. You can specify an installation prefix other than `/usr/local' by giving `configure' the option `--prefix=PREFIX'. You can specify separate installation prefixes for architecture-specific files and architecture-independent files. If you pass the option `--exec-prefix=PREFIX' to `configure', the package uses PREFIX as the prefix for installing programs and libraries. Documentation and other data files still use the regular prefix. In addition, if you use an unusual directory layout you can give options like `--bindir=DIR' to specify different values for particular kinds of files. Run `configure --help' for a list of the directories you can set and what kinds of files go in them. If the package supports it, you can cause programs to be installed with an extra prefix or suffix on their names by giving `configure' the option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'. Optional Features ================= Some packages pay attention to `--enable-FEATURE' options to `configure', where FEATURE indicates an optional part of the package. They may also pay attention to `--with-PACKAGE' options, where PACKAGE is something like `gnu-as' or `x' (for the X Window System). The `README' should mention any `--enable-' and `--with-' options that the package recognizes. For packages that use the X Window System, `configure' can usually find the X include and library files automatically, but if it doesn't, you can use the `configure' options `--x-includes=DIR' and `--x-libraries=DIR' to specify their locations. Particular systems ================== On HP-UX, the default C compiler is not ANSI C compatible. If GNU CC is not installed, it is recommended to use the following options in order to use an ANSI C compiler: ./configure CC="cc -Ae" and if that doesn't work, install pre-built binaries of GCC for HP-UX. On OSF/1 a.k.a. Tru64, some versions of the default C compiler cannot parse its `' header file. The option `-nodtk' can be used as a workaround. If GNU CC is not installed, it is therefore recommended to try ./configure CC="cc" and if that doesn't work, try ./configure CC="cc -nodtk" Specifying the System Type ========================== There may be some features `configure' cannot figure out automatically, but needs to determine by the type of machine the package will run on. Usually, assuming the package is built to be run on the _same_ architectures, `configure' can figure that out, but if it prints a message saying it cannot guess the machine type, give it the `--build=TYPE' option. TYPE can either be a short name for the system type, such as `sun4', or a canonical name which has the form: CPU-COMPANY-SYSTEM where SYSTEM can have one of these forms: OS KERNEL-OS See the file `config.sub' for the possible values of each field. If `config.sub' isn't included in this package, then this package doesn't need to know the machine type. If you are _building_ compiler tools for cross-compiling, you should use the option `--target=TYPE' to select the type of system they will produce code for. If you want to _use_ a cross compiler, that generates code for a platform different from the build platform, you should specify the "host" platform (i.e., that on which the generated programs will eventually be run) with `--host=TYPE'. Sharing Defaults ================ If you want to set default values for `configure' scripts to share, you can create a site shell script called `config.site' that gives default values for variables like `CC', `cache_file', and `prefix'. `configure' looks for `PREFIX/share/config.site' if it exists, then `PREFIX/etc/config.site' if it exists. Or, you can set the `CONFIG_SITE' environment variable to the location of the site script. A warning: not all `configure' scripts look for a site script. Defining Variables ================== Variables not defined in a site shell script can be set in the environment passed to `configure'. However, some packages may run configure again during the build, and the customized values of these variables may be lost. In order to avoid this problem, you should set them in the `configure' command line, using `VAR=value'. For example: ./configure CC=/usr/local2/bin/gcc causes the specified `gcc' to be used as the C compiler (unless it is overridden in the site shell script). Unfortunately, this technique does not work for `CONFIG_SHELL' due to an Autoconf bug. Until the bug is fixed you can use this workaround: CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash `configure' Invocation ====================== `configure' recognizes the following options to control how it operates. `--help' `-h' Print a summary of all of the options to `configure', and exit. `--help=short' `--help=recursive' Print a summary of the options unique to this package's `configure', and exit. The `short' variant lists options used only in the top level, while the `recursive' variant lists options also present in any nested packages. `--version' `-V' Print the version of Autoconf used to generate the `configure' script, and exit. `--cache-file=FILE' Enable the cache: use and save the results of the tests in FILE, traditionally `config.cache'. FILE defaults to `/dev/null' to disable caching. `--config-cache' `-C' Alias for `--cache-file=config.cache'. `--quiet' `--silent' `-q' Do not print messages saying which checks are being made. To suppress all normal output, redirect it to `/dev/null' (any error messages will still be shown). `--srcdir=DIR' Look for the package's source code in directory DIR. Usually `configure' can determine that directory automatically. `--prefix=DIR' Use DIR as the installation prefix. *Note Installation Names:: for more details, including other options available for fine-tuning the installation locations. `--no-create' `-n' Run the configure checks, but stop before creating any output files. `configure' also accepts some other, not widely useful, options. Run `configure --help' for more details. launchtool-0.8/NEWS0000644000175000017500000000110111225102672011140 00000000000000 * New in version 0.8 Cleaned up autotools packaging. * New in version 0.7 Compiles with gcc 3.2. * New in version 0.6 Corrected the parser for syslog logging parameters. * New in version 0.5 The algorithm for reading the child output should now be definitely correct. * New in version 0.4 New algorithm for reading the child output: now it does not hang anymore when reading the child output. * New in version 0.3 Renamed launcher in launcheck to prevent the name clash with another existing tool. * New in version 0.2 --infinite-runs now works correctly. launchtool-0.8/install-sh0000755000175000017500000003246411225104354012464 00000000000000#!/bin/sh # install - install a program, script, or datafile scriptversion=2006-12-25.00 # This originates from X11R5 (mit/util/scripts/install.sh), which was # later released in X11R6 (xc/config/util/install.sh) with the # following copyright and license. # # Copyright (C) 1994 X Consortium # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to # deal in the Software without restriction, including without limitation the # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or # sell copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN # AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC- # TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. # # Except as contained in this notice, the name of the X Consortium shall not # be used in advertising or otherwise to promote the sale, use or other deal- # ings in this Software without prior written authorization from the X Consor- # tium. # # # FSF changes to this file are in the public domain. # # Calling this script install-sh is preferred over install.sh, to prevent # `make' implicit rules from creating a file called install from it # when there is no Makefile. # # This script is compatible with the BSD install script, but was written # from scratch. nl=' ' IFS=" "" $nl" # set DOITPROG to echo to test this script # Don't use :- since 4.3BSD and earlier shells don't like it. doit=${DOITPROG-} if test -z "$doit"; then doit_exec=exec else doit_exec=$doit fi # Put in absolute file names if you don't have them in your path; # or use environment vars. chgrpprog=${CHGRPPROG-chgrp} chmodprog=${CHMODPROG-chmod} chownprog=${CHOWNPROG-chown} cmpprog=${CMPPROG-cmp} cpprog=${CPPROG-cp} mkdirprog=${MKDIRPROG-mkdir} mvprog=${MVPROG-mv} rmprog=${RMPROG-rm} stripprog=${STRIPPROG-strip} posix_glob='?' initialize_posix_glob=' test "$posix_glob" != "?" || { if (set -f) 2>/dev/null; then posix_glob= else posix_glob=: fi } ' posix_mkdir= # Desired mode of installed file. mode=0755 chgrpcmd= chmodcmd=$chmodprog chowncmd= mvcmd=$mvprog rmcmd="$rmprog -f" stripcmd= src= dst= dir_arg= dst_arg= copy_on_change=false no_target_directory= usage="\ Usage: $0 [OPTION]... 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Create the # directory the slow way, step by step, checking for races as we go. case $dstdir in /*) prefix='/';; -*) prefix='./';; *) prefix='';; esac eval "$initialize_posix_glob" oIFS=$IFS IFS=/ $posix_glob set -f set fnord $dstdir shift $posix_glob set +f IFS=$oIFS prefixes= for d do test -z "$d" && continue prefix=$prefix$d if test -d "$prefix"; then prefixes= else if $posix_mkdir; then (umask=$mkdir_umask && $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break # Don't fail if two instances are running concurrently. test -d "$prefix" || exit 1 else case $prefix in *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;; *) qprefix=$prefix;; esac prefixes="$prefixes '$qprefix'" fi fi prefix=$prefix/ done if test -n "$prefixes"; then # Don't fail if two instances are running concurrently. (umask $mkdir_umask && eval "\$doit_exec \$mkdirprog $prefixes") || test -d "$dstdir" || exit 1 obsolete_mkdir_used=true fi fi fi if test -n "$dir_arg"; then { test -z "$chowncmd" || $doit $chowncmd "$dst"; } && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } && { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false || test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1 else # Make a couple of temp file names in the proper directory. dsttmp=$dstdir/_inst.$$_ rmtmp=$dstdir/_rm.$$_ # Trap to clean up those temp files at exit. trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0 # Copy the file name to the temp name. (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") && # and set any options; do chmod last to preserve setuid bits. # # If any of these fail, we abort the whole thing. If we want to # ignore errors from any of these, just make sure not to ignore # errors from the above "$doit $cpprog $src $dsttmp" command. # { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } && { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } && # If -C, don't bother to copy if it wouldn't change the file. if $copy_on_change && old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` && new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` && eval "$initialize_posix_glob" && $posix_glob set -f && set X $old && old=:$2:$4:$5:$6 && set X $new && new=:$2:$4:$5:$6 && $posix_glob set +f && test "$old" = "$new" && $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1 then rm -f "$dsttmp" else # Rename the file to the real destination. $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null || # The rename failed, perhaps because mv can't rename something else # to itself, or perhaps because mv is so ancient that it does not # support -f. { # Now remove or move aside any old file at destination location. # We try this two ways since rm can't unlink itself on some # systems and the destination file might be busy for other # reasons. In this case, the final cleanup might fail but the new # file should still install successfully. { test ! -f "$dst" || $doit $rmcmd -f "$dst" 2>/dev/null || { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } } || { echo "$0: cannot unlink or rename $dst" >&2 (exit 1); exit 1 } } && # Now rename the file to the real destination. $doit $mvcmd "$dsttmp" "$dst" } fi || exit 1 trap '' 0 fi done # Local variables: # eval: (add-hook 'write-file-hooks 'time-stamp) # time-stamp-start: "scriptversion=" # time-stamp-format: "%:y-%02m-%02d.%02H" # time-stamp-end: "$" # End: launchtool-0.8/src/0000777000175000017500000000000011225107530011321 500000000000000launchtool-0.8/src/launchtool.cc0000644000175000017500000007426110764704316013742 00000000000000#define _GNU_SOURCE // for isblank #ifdef HAVE_CONFIG_H #include #endif #include #include #include #include #include "LaunchtoolCfg.h" #include "LaunchtoolOutput.h" #include "MultiReader.h" #include #include #include #include #include #include // free #include // time #include // gettimeofday #include // kill, getpid #include // struct rusage #include // getpid #include // kill #include #include // errno #include #include // Exit status check functions #include #include #include #include #undef LOGTAG #define LOGTAG "launchtool" #define APPNAME "launchtool" #define CONFIG_DIR "/etc/launchtool" using namespace std; using namespace stringf; extern char **environ; // Singleton running status class Status { public: // PID of the child process pid_t pid; // true if launchtool has been interrupted (e.g. by a signal) bool interrupted; // Signal that interrupted the launchtool (if interrupted==true) int int_signal; // The index for scanning the wait_times array int next_delay; protected: static Status* instance; public: Status() throw () : pid(1), interrupted(false), int_signal(0), next_delay(0) {} static Status& get() { if (!instance) instance = new Status(); return *instance; } }; Status* Status::instance = 0; // Structure holding informations about the execution of a process struct cmd_status { // Process pid pid_t pid; // Return value int status; // Command used to start the process string cmd; // Running time of the process struct timeval running_time; // Informations on resource usage struct rusage ru; // Process stdout + stderr string output; // Return a string with a printable representation of the contents of the // structure string beautified_status() const throw () { return Process::formatStatus(status); } }; // Run the command `cmd', storing informations on the execution in `st' int run_command(struct cmd_status* st) throw (SystemException); // Write a report in `report' about the execution of a program, using the // status informations in `st' void output_execution_report(const cmd_status& st); // Handle reception of a signal to be forwarded void forward_signal(int signum) { try { if (Status::get().pid) if (kill(Status::get().pid, signum) == -1) throw SystemException(errno, "sending signal " + fmt(signum) + " to child " + fmt(Status::get().pid)); } catch (Exception& e) { Output::lauerr(string(e.type()) + ": " + e.desc()); } } // Handle reception of a signal that terminates the running launchtool void term_signal(int signum) { Status::get().interrupted = true; Status::get().int_signal = signum; } // Handle reception of a critical signal void crit_signal(int signum) { string signame = sys_siglist[signum]; // Log a stack trace const int trace_size = 50; void *addrs[trace_size]; size_t size = backtrace(addrs, trace_size); char **strings = backtrace_symbols(addrs, size); Output::lauerr(signame + " received. " + fmt(size) + " stack frames unwound:"); for (size_t i = 0; i < size; i++) Output::lauerr(string(" ") + strings[i]); free(strings); if (Status::get().pid) { Output::lauerr("Sending the child process the TERM signal..."); if (kill(Status::get().pid, SIGTERM) == -1) throw SystemException(errno, "sending signal " + fmt(SIGTERM) + " to child " + fmt(Status::get().pid)); sleep(2); Output::lauerr("Sending the child process the KILL signal..."); if (kill(Status::get().pid, SIGKILL) == -1) throw SystemException(errno, "sending signal " + fmt(SIGKILL) + " to child " + fmt(Status::get().pid)); } Output::lauerr("Exiting"); _exit(1); } // Setup signal masks and handlers void setup_signals() { // Block signals in `blocked_signals' sigset_t block_set; sigemptyset(&block_set); for (unsigned int i = 0; i < Cfg::get().blocked_signals.size(); i++) sigaddset(&block_set, Cfg::get().blocked_signals[i]); sigprocmask(SIG_BLOCK, &block_set, 0); struct sigaction sa; sigemptyset(&sa.sa_mask); sa.sa_flags = 0; // Setup the terminating function for normal termination signals sa.sa_handler = term_signal; sigaction(SIGINT, &sa, 0); sigaction(SIGQUIT, &sa, 0); sigaction(SIGTERM, &sa, 0); // Setup the critical terminating function for critical signals sa.sa_handler = crit_signal; sigaction(SIGFPE, &sa, 0); sigaction(SIGILL, &sa, 0); sigaction(SIGSEGV, &sa, 0); sigaction(SIGBUS, &sa, 0); sigaction(SIGABRT, &sa, 0); sigaction(SIGIOT, &sa, 0); sigaction(SIGTRAP, &sa, 0); sigaction(SIGSYS, &sa, 0); // Setup the forwarder function for signals in `forwarded_signals', // possibly overwriting `terminating' and `critical' handler setups sa.sa_handler = forward_signal; for (unsigned int i = 0; i < Cfg::get().forwarded_signals.size(); i++) sigaction(Cfg::get().forwarded_signals[i], &sa, 0); } class LaunchtoolMain : public Process { public: virtual int main() throw (); }; int LaunchtoolMain::main() throw () { try { if (Cfg::get().verbose) if (Cfg::get().detach) log_info(Cfg::get().visible_tag + " going to background with pid " + fmt(getpid())); else log_info(Cfg::get().visible_tag + " started (pid: " + fmt(getpid()) + ")"); // Detach from TTY if (Cfg::get().detach) { chdir("/"); detachFromTTY(); } // Setup and create the pid file Pidfile pidfile(Cfg::get().visible_tag, Cfg::get().piddir); if (Cfg::get().pidfile) pidfile.takeover(); // Main loop setup_signals(); string rep_prefix = Cfg::get().visible_tag + " (" + Cfg::get().command + ") "; if (Cfg::get().verbose) Output::lauout(rep_prefix + "starting session"); // Run and re-run the process while (! Status::get().interrupted) { string report; cmd_status status; run_command(&status); // Check if we should do a silent restart if (Cfg::get().enable_silent_restart && WIFEXITED(status.status) && WEXITSTATUS(status.status) == Cfg::get().silent_restart_status) { // Silent restart sleep(Cfg::get().silent_restart_time); } else { // Log execution stats if requested if (Cfg::get().stats) output_execution_report(status); // Check for successful termination if (WIFEXITED(status.status) && WEXITSTATUS(status.status) == 0) { // Successful termination if (Cfg::get().verbose) Output::lauout(rep_prefix + "terminated successfully"); return 0; } else { // Unsuccessful termination // Just return the exit status if we should not restart the // command if (!Cfg::get().wait_times.size()) return WEXITSTATUS(status.status); unsigned int wait_time; // Compute how much time we should wait if (status.running_time.tv_sec < Cfg::get().good_running_time) { // good_running_time not reached wait_time = Cfg::get().wait_times[Status::get().next_delay]; if (!Cfg::get().infinite_runs || Status::get().next_delay < Cfg::get().wait_times.size() - 1) Status::get().next_delay++; } else { wait_time = Cfg::get().wait_times[0]; Status::get().next_delay = 0; } if (Status::get().next_delay >= Cfg::get().wait_times.size()) { // Retry limit reached Output::lauerr(rep_prefix + "restarting too often: giving up"); return WEXITSTATUS(status.status); } else if (!Status::get().interrupted) { // Program exited and needs re-running Output::lauerr(rep_prefix + status.beautified_status() + ", restart in " + fmt(wait_time) + " seconds"); sleep(wait_time); } } } if (Status::get().interrupted) { // Interrupted by a signal if (WIFSIGNALED(status.status)) { // The signal killed the child process Output::lauerr(rep_prefix + "interrupted by signal " + fmt(Status::get().int_signal) + " forwarded by the launchtool"); } else { // The signal killed just the launchtool while it was sleeping Output::lauerr(rep_prefix + "launchtool interrupted by signal " + fmt(Status::get().int_signal) + " while sleeping"); } } } // Terminated by signal Output::lauerr(rep_prefix + "launchtool terminated by signal " + fmt(Status::get().int_signal)); } catch (Exception& e) { Output::lauerr(Cfg::get().visible_tag + " (" + Cfg::get().command + ") caught exception: " + e.type() + ": " + e.desc()); } if (Cfg::get().verbose) Output::lauout(Cfg::get().visible_tag + " (" + Cfg::get().command + ") quit"); return 1; } static bool cimatch(const string& str1, const string& str2) throw () { if (str1.size() != str2.size()) return false; return strncasecmp(str1.data(), str2.data(), str1.size()) == 0; } static bool parseBool(const string& str) throw (ConsistencyCheckException) { if (str == "0" || cimatch(str, "no") || cimatch(str, "false")) return false; if (str == "1" || cimatch(str, "yes") || cimatch(str, "true")) return true; throw ConsistencyCheckException("Bad true/false falue: " + str); } vector parseIntList(const string& str) throw (ConsistencyCheckException) { const char* s = str.c_str(); const char* e = s + str.size(); vector res; while (s < e) { res.push_back((unsigned int)strtol(s, (char**)&s, 10)); while (s < e && (*s == ',' || isblank(*s))) s++; } return res; } vector parseSigList(const string& str) throw (ConsistencyCheckException) { const char* s = str.data(); const char* e = str.data() + str.size(); static struct { unsigned int num; const char* name; } sigs[] = { { 1, "HUP" }, { 2, "INT" }, { 3, "QUIT" }, { 4, "ILL" }, { 5, "TRAP" }, { 6, "ABRT" }, { 7, "BUS" }, { 8, "FPE" }, { 9, "KILL" }, { 10, "USR1" }, { 11, "SEGV" }, { 12, "USR2" }, { 13, "PIPE" }, { 14, "ALRM" }, { 15, "TERM" }, { 17, "CHLD" }, { 18, "CONT" }, { 19, "STOP" }, { 20, "TSTP" }, { 21, "TTIN" }, { 22, "TTOU" }, { 23, "URG" }, { 24, "XCPU" }, { 25, "XFSZ" }, { 26, "VTALRM" }, { 27, "PROF" }, { 28, "WINCH" }, { 29, "IO" }, { 30, "PWR" }, { 31, "SYS" }, { 0, 0 } }; vector res; while (s < e) { if (isdigit(*s)) res.push_back(strtol(s, (char**)&s, 10)); else { string v; while (s < e && (*s != ',' && !isblank(*s))) v += *s++; for (unsigned int i = 0; sigs[i].name; i++) if (v == sigs[i].name || (v.substr(0, 3) == "SIG" && v.substr(3) == sigs[i].name)) { res.push_back(sigs[i].num); v = string(); break; } if (v.size()) throw ConsistencyCheckException("Unknown signal name: " + v); } while (s < e && (*s == ',' || isblank(*s))) s++; } return res; } vector parseStringList(const string& str) throw (ConsistencyCheckException) { const char* s = str.data(); const char* e = str.data() + str.size(); vector res; while (s < e) { string v; while (s < e && (*s != ',' && !isblank(*s))) v += *s; res.push_back(v); while (s < e && (*s == ',' || isblank(*s))) s++; } return res; } int main(int argc, const char* argv[]) { // Initialize command line parsing data // Special actions int op_version = 0; int op_check = 0; int op_showcfg = 0; int op_kill = -1; // Verbosity int op_verbose = -1; int op_no_verbose = -1; int op_debug = -1; int op_no_debug = -1; // Operating parameters char* op_config_file = 0; char* op_visible_tag = 0; char* op_root_dir = 0; char* op_start_dir = 0; int op_umask = -1; int op_infinite_runs = -1; int op_no_infinite_runs = -1; char* op_wait_times = 0; int op_good_running_time = -1; char* op_forwarded_signals = 0; char* op_blocked_signals = 0; int op_detach = -1; int op_no_detach = -1; int op_pidfile = -1; char* op_piddir = 0; int op_no_pidfile = -1; char* op_command = 0; char* op_tag = 0; int op_limit_cpu = -1; int op_limit_file_size = -1; int op_limit_data_memory = -1; int op_limit_process_count = -1; int op_limit_open_files = -1; int op_limit_core_size = -1; char* op_user = 0; char* op_group = 0; int op_restrict_environment = -1; int op_no_restrict_environment = -1; char* op_allowed_env_vars = 0; char* op_log_launchtool_out = 0; char* op_log_launchtool_err = 0; char* op_log_child_stdout = 0; char* op_log_child_stderr = 0; int op_silent_restart_status = -1; int op_silent_restart_time = -1; int op_stats = -1; int op_no_stats = -1; char* help = "Run a command supervising its execution.\n"; struct poptOption emptyTable[] = { POPT_TABLEEND }; struct poptOption optionsTable[] = { // Special actions { "kill", 'k', POPT_ARG_INT | POPT_ARGFLAG_OPTIONAL, &op_kill, 0, "kill a running daemon with the specified signal (15 by default) and exit", "signal" }, { "check", 0, POPT_ARG_NONE, &op_check, 0, "check if another " APPNAME " is running and exit", 0 }, { "showcfg", 0, POPT_ARG_NONE, &op_showcfg, 0, "process config files and commandline, show the resulting configuration and exit", 0 }, { "version", 'V', POPT_ARG_NONE, &op_version, 0, "print version and exit", 0 }, // Verbosity { "verbose", 'v', POPT_ARG_NONE, &op_verbose, 0, "enable verbose output", 0 }, { "no-verbose", 0, POPT_ARG_NONE, &op_no_verbose, 0, "disable verbose output", 0 }, { "debug", 0, POPT_ARG_NONE, &op_debug, 0, "enable debug output (includes --verbose output)", 0 }, { "no-debug", 0, POPT_ARG_NONE, &op_no_debug, 0, "disable debug output", 0 }, // Operating parameters { "config", 'C', POPT_ARG_STRING, &op_config_file, 0, "file with configuration data (default: " CONFIG_DIR "/.conf)", "file" }, { "tag", 't', POPT_ARG_STRING, &op_tag, 0, "tag used to identify the session", "tag" }, { "command", 'c', POPT_ARG_STRING, &op_command, 0, "command to execute", "cmd" }, { "visible-tag", 0, POPT_ARG_STRING, &op_visible_tag, 0, "tag to use for pidfiles and logfiles instead of \"launchtool-\"", "tag" }, { "daemon", 'd', POPT_ARG_NONE, &op_detach, 0, "fork to background, becoming a daemon", 0 }, { "no-daemon", 'n', POPT_ARG_NONE, &op_no_detach, 0, "don't fork to background", 0 }, { "pidfile", 0, POPT_ARG_NONE, &op_pidfile, 0, "create a pidfile (default when --daemon is used)", 0 }, { "no-pidfile", 0, POPT_ARG_NONE, &op_no_pidfile, 0, "don't create a pidfile (default when --daemon is not used)", 0 }, { "piddir", 0, POPT_ARG_STRING, &op_piddir, 0, "directory where pidfiles are stored (default to " PID_DIR ")", "dir" }, { "chroot", 0, POPT_ARG_STRING, &op_root_dir, 0, "chroot to this directory before running the command", "dir" }, { "chdir", 0, POPT_ARG_STRING, &op_start_dir, 0, "chdir to this directory before running the command (default to '.' or '/' if --daemon is present)", "dir" }, { "user", 'u', POPT_ARG_STRING, &op_user, 0, "user privileges to run the command with", "user" }, { "group", 'g', POPT_ARG_STRING, &op_group, 0, "group privileges to run the command with", "group" }, { "umask", 0, POPT_ARG_STRING, &op_umask, 0, "set this umask before running the command", "mask" }, { "infinite-runs", 'L', POPT_ARG_NONE, &op_infinite_runs, 0, "never give up restarting the command if it fails", 0 }, { "no-infinite-runs", 0, POPT_ARG_NONE, &op_no_infinite_runs, 0, "give up restarting the command after a certain number of failures", 0 }, { "wait-times", 0, POPT_ARG_STRING, &op_wait_times, 0, "list of times (in seconds) to wait after a program failure before restarting it. If not specified, failed commands will not be restarted.", "t1,t2,..." }, { "good-running-time", 0, POPT_ARG_INT, &op_good_running_time, 0, "minimum running time needed to restart for the first wait time", "seconds" }, { "forwarded-signals", 0, POPT_ARG_STRING, &op_forwarded_signals, 0, "list of signals (in name or in number) to be forwarded to the command", "sig1,sig2,..." }, { "blocked-signals", 0, POPT_ARG_STRING, &op_blocked_signals, 0, "list of signals (in name or in number) to be blocked before running the command", "sig1,sig2,..." }, { "limit-cpu", 0, POPT_ARG_INT, &op_limit_cpu, 0, "CPU time limit for the command (see setrlimit(2))", "seconds" }, { "limit-file-size", 0, POPT_ARG_INT, &op_limit_file_size, 0, "File size limit for the command (see setrlimit(2))", "1024b-blocks" }, { "limit-data-memory", 0, POPT_ARG_INT, &op_limit_data_memory, 0, "Data memory size limit for the command (see setrlimit(2))", "1024b-blocks" }, { "limit-process-count", 0, POPT_ARG_INT, &op_limit_process_count, 0, "Process count limit for the command (see setrlimit(2))", "count" }, { "limit-open-files", 0, POPT_ARG_INT, &op_limit_open_files, 0, "Open files limit for the command (see setrlimit(2))", "count" }, { "limit-core-size", 0, POPT_ARG_INT, &op_limit_core_size, 0, "Core file size limit for the command (see setrlimit(2))", "1024b-blocks" }, { "restrict-environment", 0, POPT_ARG_NONE, &op_restrict_environment, 0, "restrict the child environment", 0 }, { "no-restrict-environment", 0, POPT_ARG_NONE, &op_no_restrict_environment, 0, "copy all environment variables to the child environment", 0 }, { "allowed-env-vars", 0, POPT_ARG_STRING, &op_allowed_env_vars, 0, "list of environment variables to be copied to the child when the environment is restricted", "var1,var2,..." }, { "log-launchtool-output", 0, POPT_ARG_STRING, &op_log_launchtool_out, 0, "target of the launchtool output (ignore, stdout, stderr, file:filename or syslog:identity,facility,level)", "target" }, { "log-launchtool-errors", 0, POPT_ARG_STRING, &op_log_launchtool_err, 0, "target of the launchtool error messages (ignore, stdout, stderr, file:filename or syslog:identity,facility,level)", "target" }, { "log-child-output", 0, POPT_ARG_STRING, &op_log_child_stdout, 0, "target of the child output (ignore, stdout, stderr, file:filename or syslog:identity,facility,level)", "target" }, { "log-child-errors", 0, POPT_ARG_STRING, &op_log_child_stderr, 0, "target of the child error messages (ignore, stdout, stderr, file:filename or syslog:identity,facility,level)", "target" }, { "silent-restart-status", 0, POPT_ARG_INT, &op_silent_restart_status, 0, "Return value used by the child to explicitly request a restart (feature disabled if not specified)", "value" }, { "silent-restart-time", 0, POPT_ARG_INT, &op_silent_restart_time, 0, "Time to wait before restarting the child after an explicit restart request", "seconds" }, { "stats", 0, POPT_ARG_NONE, &op_stats, 0, "Produce some statistics when the command terminates (implied by --verbose)", 0 }, { "no-stats", 0, POPT_ARG_NONE, &op_no_stats, 0, "Do not produce statistics when the command terminates", 0 }, POPT_AUTOHELP { NULL, 0, POPT_ARG_INCLUDE_TABLE, emptyTable, 0, help, 0 }, POPT_TABLEEND }; poptContext optCon = poptGetContext(NULL, argc, argv, optionsTable, 0); poptSetOtherOptionHelp(optCon, "[options]"); set_unexpected(DefaultUnexpected); if (argc < 2) { poptPrintHelp(optCon, stderr, 0); return 1; } // Process commandline int res = poptGetNextOpt(optCon); if (res != -1) { fprintf(stderr, "%s: %s\n\n", poptBadOption(optCon, POPT_BADOPTION_NOALIAS), poptStrerror(res)); poptPrintUsage(optCon, stderr, 0); return 1; } if (op_version) { printf("%s ver." VERSION "\n", argv[0]); return 0; } Output::set_lauout(new StdoutOutput()); Output::set_lauerr(new StderrOutput()); Output::set_cldout(new StdoutOutput()); Output::set_clderr(new StderrOutput()); try { LaunchtoolLogEnvironment logEnv(); // Read configuration files Config cfg; if (op_config_file) cfg = Config::parse(op_config_file); else { if (op_tag) { string file = string(CONFIG_DIR "/") + op_tag + ".conf"; if (access(file.c_str(), R_OK) == 0) cfg = Config::parse(file); } } // Use the private configuration section, if it exists try { if (op_tag) cfg = cfg.getSection(op_tag); } catch (ConfigKeyNotFoundException& e) {} string cand_tag = op_tag ? op_tag : cfg.getString("tag", ""); if (cand_tag == "") { fprintf(stderr, "A tag must be provided, with the -t/--tag switch or in a config file\n"); return 1; } Cfg::init(cand_tag); #define GETSTRING(parm, cfgparm) \ Cfg::get().parm = op_##parm ? op_##parm \ : cfg.getString(cfgparm, Cfg::get().parm) #define GETINT(parm, cfgparm) \ Cfg::get().parm = op_##parm != -1 ? op_##parm \ : cfg.getInt(cfgparm, Cfg::get().parm) #define GETBOOL(parm, cfgparm) \ Cfg::get().parm = op_##parm != -1 ? 1 \ : parseBool(cfg.getString(cfgparm, Cfg::get().parm ? "yes" : "no")); \ Cfg::get().parm = op_no_##parm != -1 ? 0 : Cfg::get().parm // Setup configuration data GETSTRING(visible_tag, "visible tag"); GETSTRING(command, "command"); GETBOOL(detach, "daemon"); if (Cfg::get().detach) Cfg::get().pidfile = true; GETBOOL(pidfile, "pidfile"); GETSTRING(piddir, "piddir"); Cfg::get().start_dir = Cfg::get().detach ? "/" : "."; GETSTRING(start_dir, "start dir"); GETSTRING(root_dir, "root dir"); GETINT(umask, "umask"); GETBOOL(infinite_runs, "infinite runs"); string cand_wait_times = op_wait_times ? op_wait_times : cfg.getString("wait times", ""); if (cand_wait_times.size()) Cfg::get().wait_times = parseIntList(cand_wait_times); GETINT(good_running_time, "good running time"); Cfg::get().forwarded_signals = parseSigList(op_forwarded_signals ? op_forwarded_signals : cfg.getString("forwarded signals", "")); Cfg::get().blocked_signals = parseSigList(op_blocked_signals ? op_blocked_signals : cfg.getString("blocked signals", "")); GETINT(limit_cpu, "cpu limit"); GETINT(limit_file_size, "file size limit"); GETINT(limit_data_memory, "data memory limit"); GETINT(limit_process_count, "process count limit"); GETINT(limit_open_files, "open files limit"); GETINT(limit_core_size, "core size limit"); GETSTRING(user, "user"); GETSTRING(group, "group"); GETBOOL(restrict_environment, "restrict environment"); vector strlist = parseStringList(op_allowed_env_vars ? op_allowed_env_vars : cfg.getString("allowed env vars", "")); Cfg::get().allowed_env_vars.clear(); for (vector::const_iterator i = strlist.begin(); i != strlist.end(); i++) Cfg::get().allowed_env_vars.insert(*i); GETSTRING(log_launchtool_out, "launchtool output"); GETSTRING(log_launchtool_err, "launchtool errors"); GETSTRING(log_child_stdout, "command output"); GETSTRING(log_child_stderr, "command errors"); GETINT(silent_restart_status, "silent restart status"); if (Cfg::get().silent_restart_status != -1) Cfg::get().enable_silent_restart = true; GETINT(silent_restart_time, "silent restart time"); GETBOOL(verbose, "verbose"); GETBOOL(debug, "debug"); if (Cfg::get().verbose) Cfg::get().stats = true; GETBOOL(stats, "stats"); // Initialize output system Output::set_lauout(Output::getMethod(Cfg::get().log_launchtool_out)); Output::set_lauerr(Output::getMethod(Cfg::get().log_launchtool_err)); Output::set_cldout(Output::getMethod(Cfg::get().log_child_stdout)); Output::set_clderr(Output::getMethod(Cfg::get().log_child_stderr)); // Concatenate remaining parameters to the command while (poptPeekArg(optCon)) { if (Cfg::get().command.size()) Cfg::get().command += " "; Cfg::get().command += poptGetArg(optCon); } // Do special actions, if requested if (op_showcfg) { Cfg::get().print(); return 0; } if (op_kill != -1) { if (op_kill == 0) op_kill = 15; Pidfile pidfile(Cfg::get().visible_tag, Cfg::get().piddir); if (pidfile.kill(op_kill)) return 0; else { Output::lauerr(Cfg::get().visible_tag + " is not running"); return 1; } } if (op_check) { Pidfile pidfile(Cfg::get().visible_tag, Cfg::get().piddir); if (pidfile.is_active()) { if (isatty(1)) printf("%.*s is running with pid %d\n", PFSTR(Cfg::get().visible_tag), pidfile.read()); return 0; } else { if (isatty(1)) printf("%.*s is not running\n", PFSTR(Cfg::get().visible_tag)); return 1; } } // Check for another existing such launchtool, if needed Pidfile pidfile(Cfg::get().visible_tag, Cfg::get().piddir); if (!op_no_pidfile && pidfile.is_active()) { Output::lauerr(Cfg::get().visible_tag + " already running as pid " + fmt(pidfile.read())); return 1; } // Main initialization LaunchtoolMain* launchtool = new LaunchtoolMain(); if (! Cfg::get().detach) return launchtool->main(); else { ChildProcess daemon(launchtool); daemon.fork(); return 0; } } catch (Exception& e) { if (Cfg::initialized()) Output::lauerr(Cfg::get().visible_tag + " " + e.type() + ": " + e.desc()); else Output::lauerr(string(e.type()) + ": " + e.desc()); return 1; } return 0; }; class SubCommand : public Process { public: virtual int main() throw (); }; int SubCommand::main() throw () { try { // Change root directory if (Cfg::get().root_dir.size()) Process::chroot(Cfg::get().root_dir); // Change working directory if (Cfg::get().start_dir.size()) Process::chdir(Cfg::get().start_dir); // Set umask if (Cfg::get().umask != (mode_t)-1) Process::umask(Cfg::get().umask); // Set resource limits if (Cfg::get().limit_cpu != -1) Process::setCPUTimeLimit(Cfg::get().limit_cpu); if (Cfg::get().limit_file_size != -1) Process::setFileSizeLimit(Cfg::get().limit_file_size); if (Cfg::get().limit_data_memory != -1) Process::setDataMemoryLimit(Cfg::get().limit_data_memory); if (Cfg::get().limit_process_count != -1) Process::setChildrenLimit(Cfg::get().limit_process_count); if (Cfg::get().limit_open_files != -1) Process::setOpenFilesLimit(Cfg::get().limit_open_files); if (Cfg::get().limit_core_size != -1) Process::setCoreSizeLimit(Cfg::get().limit_core_size); // Set user and group permissions if (Cfg::get().user.size()) if (Cfg::get().group.size()) Process::setPerms(Cfg::get().user, Cfg::get().group); else Process::setPerms(Cfg::get().user); Exec prog("/bin/sh"); prog.addArg("/bin/sh"); prog.addArg("-c"); prog.addArg(Cfg::get().command); // Build environment, with optional filtering if (!Cfg::get().restrict_environment) for (char** s = environ; *s; s++) prog.addEnv(*s); else { if (Cfg::get().allowed_env_vars.size()) for (char** s = environ; *s; s++) { string name = *s; size_t pos = name.find('='); if (pos != string::npos) name.resize(pos); if (Cfg::get().allowed_env_vars.find(name) != Cfg::get().allowed_env_vars.end()) prog.addEnv(*s); } } prog.addEnv("UNDER_LAUNCHTOOL=1"); // Execute the program prog.exec(); // Unreachable, but makes g++ stop complaining return 1; } catch (Exception& e) { Output::lauerr(string(e.type()) + ": " + e.desc()); return 1; } } class StdoutListener : public LineMultiReader::Listener { public: virtual void haveLine(int fd, const string& line) throw () { Output::cldout(line); } }; class StderrListener : public LineMultiReader::Listener { public: virtual void haveLine(int fd, const string& line) throw () { Output::clderr(line); } }; // Run the child command logging its output, filling up `st' and returning the // child exit status int run_command(struct cmd_status* st) throw (SystemException) { struct timeval starttime; int cld_stdout, cld_stderr; gettimeofday(&starttime, 0); ChildProcess child(new SubCommand()); // Run the command as a child process, catching stdout and stderr child.fork(0, &cld_stdout, &cld_stderr); // Fill in the global childPid variable used by the signal handlers Status::get().pid = child.pid(); // Fill-in the status structure info st->cmd = Cfg::get().command; st->pid = child.pid(); // Read the child output StdoutListener sol; StderrListener sel; LineMultiReader oreader; oreader.addFD(cld_stdout, &sol); oreader.addFD(cld_stderr, &sel); while (1) { try { oreader.readLoop(); break; } catch (InterruptedException& e) { Output::lauerr("Wait interrupted " + e.desc()); if (Status::get().interrupted) break; } } close(cld_stdout); close(cld_stderr); // Read the child exit status and resource informations bool done = false; while (!done) { try { st->status = child.wait(&st->ru); done = true; } catch (InterruptedException) {} } Status::get().pid = 0; // Calculate the total running time gettimeofday(&st->running_time, 0); if (st->running_time.tv_usec < starttime.tv_usec) { st->running_time.tv_usec += 1000000; st->running_time.tv_sec -= 1; } st->running_time.tv_usec -= starttime.tv_usec; st->running_time.tv_sec -= starttime.tv_sec; return st->status; } void output_execution_report(const cmd_status& st) { Output::lauout(" * Process execution details"); Output::lauout(" Command: " + st.cmd + " " + st.beautified_status()); Output::lauout(fmt(" Time: running: %02li:%02li:%02li" " user: %li.%06lis" " system: %li.%06lis", st.running_time.tv_sec / 3600, st.running_time.tv_sec / 60 % 60, st.running_time.tv_sec % 60, st.ru.ru_utime.tv_sec, st.ru.ru_utime.tv_usec, st.ru.ru_stime.tv_sec, st.ru.ru_stime.tv_usec)); if (st.ru.ru_maxrss) Output::lauout(fmt(" Max resident set size: %lib", st.ru.ru_maxrss)); if (st.ru.ru_ixrss) Output::lauout(fmt(" Integral shared memory size: %lib", st.ru.ru_ixrss)); if (st.ru.ru_idrss) Output::lauout(fmt(" Integral unshared data size: %lib", st.ru.ru_idrss)); if (st.ru.ru_isrss) Output::lauout(fmt(" Integral unshared stack size: %lib", st.ru.ru_isrss)); if (st.ru.ru_minflt) Output::lauout(fmt(" Page reclaims: %li", st.ru.ru_minflt)); if (st.ru.ru_majflt) Output::lauout(fmt(" Page faults: %li", st.ru.ru_majflt)); if (st.ru.ru_nswap) Output::lauout(fmt(" Swaps: %li", st.ru.ru_nswap)); if (st.ru.ru_inblock) Output::lauout(fmt(" Block input operations: %li", st.ru.ru_inblock)); if (st.ru.ru_oublock) Output::lauout(fmt(" Block output operations: %li", st.ru.ru_oublock)); if (st.ru.ru_msgsnd) Output::lauout(fmt(" Messages sent: %li", st.ru.ru_msgsnd)); if (st.ru.ru_msgrcv) Output::lauout(fmt(" Messages received: %li", st.ru.ru_msgrcv)); if (st.ru.ru_nsignals) Output::lauout(fmt(" Signals received: %li", st.ru.ru_nsignals)); if (st.ru.ru_nvcsw) Output::lauout(fmt(" Voluntary context switches: %li", st.ru.ru_nvcsw)); if (st.ru.ru_nivcsw) Output::lauout(fmt(" Involuntary context switches: %li", st.ru.ru_nivcsw)); } // vim:set ts=4 sw=4: launchtool-0.8/src/MultiReader.h0000644000175000017500000000261407617540715013646 00000000000000#ifndef MULTIREADER_H #define MULTIREADER_H #include #include #include /// Read data from multiple filehandles class MultiReader { protected: struct fddata { int fd; int old_flags; fddata(int fd, int old_flags) throw () : fd(fd), old_flags(old_flags) {} }; std::vector fds; virtual void handleData(int fd, char* buf, unsigned int size) = 0; virtual void handleEOF(int fd) = 0; public: virtual ~MultiReader() {} /// Add another fd and listener to the listening set void addFD(int fd) throw (SystemException); /// Do the read loop void readLoop() throw (SystemException, InterruptedException); }; class LineMultiReader : public MultiReader { public: /// Interface for data listeners class Listener { public: /// Notify that there is a new line available from `fd'. Note: newline /// is stripped away from `line'. virtual void haveLine(int fd, const std::string& line) throw () = 0; /// Notify the end-of-file condition on `fd' virtual void haveEOF(int fd) throw () {} }; protected: std::string linebuf; std::map listeners; virtual void handleData(int fd, char* buf, unsigned int size) throw (); virtual void handleEOF(int fd) throw (); public: void addFD(int fd, Listener* l) throw (SystemException) { MultiReader::addFD(fd); listeners.insert(std::pair(fd, l)); } }; // vim:set ts=4 sw=4: #endif launchtool-0.8/src/Makefile.am0000644000175000017500000000074711225102534013300 00000000000000## Process this file with automake to produce Makefile.in SUBDIRS = common bin_PROGRAMS = launchtool noinst_PROGRAMS = test launchtool_SOURCES = MultiReader.cc LaunchtoolCfg.cc LaunchtoolOutput.cc launchtool.cc launchtool_LDADD = common/libcommon.a test_SOURCES = test.cc test_LDADD = common/libcommon.a INCLUDES = -I$(top_srcdir) -I$(top_srcdir)/src/common EXTRA_DIST = LaunchtoolCfg.h LaunchtoolOutput.h MultiReader.h \ test_daemon test_logging test_plain test_poll_daemon launchtool-0.8/src/test_poll_daemon0000755000175000017500000000047707617540716014544 00000000000000#!./launchtool -C tag = test_poll_daemon command = ./test -s1 #daemon = yes silent restart status = 1 silent restart time = 1 launchtool output = file:test_poll_daemon_lo.log launchtool errors = file:test_poll_daemon_le.log command output = file:test_poll_daemon_co.log command errors = file:test_poll_daemon_ce.log launchtool-0.8/src/LaunchtoolCfg.cc0000644000175000017500000000761310764704145014317 00000000000000#include "LaunchtoolCfg.h" #include // Kill constants #include #include using namespace std; Cfg::Cfg(const string& tag) throw () : tag(tag), visible_tag("launchtool-" + tag), root_dir(), start_dir("/"), umask((mode_t)-1), infinite_runs(false), good_running_time(300), detach(false), pidfile(false), piddir(PID_DIR), limit_cpu(-1), limit_file_size(-1), limit_data_memory(-1), limit_process_count(-1), limit_open_files(-1), limit_core_size(-1), user(), group(), restrict_environment(false), log_launchtool_out("stdout"), log_launchtool_err("stderr"), log_child_stdout("stdout"), log_child_stderr("stderr"), enable_silent_restart(false), silent_restart_status(-1), verbose(false), debug(false), stats(false) { /* // Initialize the wait times // First 2 minutes small intervals wait_times.push_back(10); wait_times.push_back(10); wait_times.push_back(30); wait_times.push_back(30); wait_times.push_back(40); // Next 5 minutes, 1 minute intervals for (unsigned int i = 0; i < 5; i++) wait_times.push_back(60); // Next 10 minutes, 2 minute intervals for (unsigned int i = 0; i < 5; i++) wait_times.push_back(120); // Next 8 hours, 5 minute intervals for (unsigned int i = 0; i < 12*8; i++) wait_times.push_back(300); */ /* forwarded_signals.push_back(SIGHUP); forwarded_signals.push_back(SIGUSR1); forwarded_signals.push_back(SIGUSR2); */ } #include using namespace stringf; static string strFmt(const string& s) throw () { return s.size() ? s : ""; } #include static void printSigVec(FILE* out, vector& v) throw () { if (v.size()) for (unsigned int i = 0; i < v.size(); i++) { if (i > 0) fprintf(out, ", "); fprintf(out, "%d (%s)", v[i], sys_siglist[v[i]]); } else fprintf(out, "none"); } void Cfg::print() throw () { FILE* out = stdout; fprintf(out, " * Configuration for %.*s (%.*s):\n\n", PFSTR(tag), PFSTR(visible_tag)); fprintf(out, "Root dir: %.*s\tStart dir: %.*s\tUmask: %d\n", PFSTR(strFmt(root_dir)), PFSTR(strFmt(start_dir)), umask); fprintf(out, "Wait times (good running time: %d): ", good_running_time); for (unsigned int i = 0; i < wait_times.size(); i++) { if (i > 0) fprintf(out, ", "); fprintf(out, "%d", wait_times[i]); } if (infinite_runs) fprintf(out, ", ...\n"); else fprintf(out, "\n"); if (enable_silent_restart) fprintf(out, "Silent restart enabled, status: %d, wait time: %d\n", silent_restart_status, silent_restart_time); else fprintf(out, "Silent restart disabled\n"); fprintf(out, "Forwarded signals: "); printSigVec(out, forwarded_signals); fprintf(out, "\n"); fprintf(out, "Blocked signals: "); printSigVec(out, blocked_signals); fprintf(out, "\n"); fprintf(out, "Command: %.*s, %sdetached, with %spidfile\n", PFSTR(command), detach ? "" : "not ", pidfile ? "" : "no "); fprintf(out, "Force user: %.*s, group: %.*s\n", PFSTR(strFmt(user)), PFSTR(strFmt(group))); fprintf(out, "Limits: cpu: %d, file size: %d, data mem: %d, processes: %d, open files: %d, core size: %d\n", limit_cpu, limit_file_size, limit_data_memory, limit_process_count, limit_open_files, limit_core_size); if (restrict_environment) { fprintf(out, "Env. restricted. Allowed vars: "); if (allowed_env_vars.size()) { for (set::const_iterator i = allowed_env_vars.begin(); i != allowed_env_vars.end(); i++) { if (i != allowed_env_vars.begin()) fprintf(out, ", "); fprintf(out, "%.*s", PFSTR(*i)); } fprintf(out, "\n"); } else fprintf(out, "none\n"); } fprintf(out, "Launchtool logging: out: %.*s, err: %.*s\n", PFSTR(log_launchtool_out), PFSTR(log_launchtool_err)); fprintf(out, "Child logging: out: %.*s, err: %.*s\n", PFSTR(log_child_stdout), PFSTR(log_child_stderr)); fprintf(out, "Output: %sverbose, %sdebug, %sstats\n", verbose ? "" : "no ", debug ? "": "no ", stats ? "" : "no "); } Cfg* Cfg::instance = 0; // vim:set ts=4 sw=4: launchtool-0.8/src/test_plain0000755000175000017500000000063207617540716013347 00000000000000#!./launchtool -C # Runs launchtool not detached with a program that always exits with an error tag = test command = ./test -s1 #visible tag = test #daemon = no #blocked signals = SIGHUP #silent restart status = 0 #silent restart time = 60 launchtool output = file:test_plain_lo.log launchtool errors = file:test_plain_le.log command output = file:test_plain_co.log command errors = file:test_plain_ce.log launchtool-0.8/src/LaunchtoolCfg.h0000644000175000017500000000655710764704206014165 00000000000000#ifndef LAUNCHTOOL_CFG_H #define LAUNCHTOOL_CFG_H #include #include #include #include // Singleton configuration data for this launchtool class Cfg { public: // Identification tag std::string tag; // Visible tag, used for PID identification and logfile tagging std::string visible_tag; // Root directory std::string root_dir; // Starting directory (relative to root_dir, if root_dir has been specified) std::string start_dir; // Umask mode_t umask; // If true, wait_times behaves like the last value was repeated infinitely, // else stop execution after having passed the last value bool infinite_runs; // Wait times (in seconds) between a failure and a re-run std::vector wait_times; // Minimum running time (in seconds) requested to return to the first // wait_times value unsigned int good_running_time; // Signal handling. Signals can be: // 1) Caught by launchtool, that exits on response (default) // 2) Forwarded to the child // 3) Blocked std::vector forwarded_signals; std::vector blocked_signals; // If true, launchtool detaches from the terminal like a daemon bool detach; // If true, launchtool creates and manages a pidfile bool pidfile; // Directory where pidfiles will be created and managed std::string piddir; // Full commandline (passed to sh -c) of the command to be executed std::string command; // Resource limits to be enforced in the child int limit_cpu; int limit_file_size; int limit_data_memory; int limit_process_count; int limit_open_files; int limit_core_size; // User and group privileges for the child (unchanged if not specified) std::string user; std::string group; // Child environment configuration // All environment variables are passed to the child, except if // restrict_environment is true; in that case, only the variables listed in // allowed_env_vars will be passed to the child and the environment will be // passed empty and initialized by sh with its defaults. bool restrict_environment; std::set allowed_env_vars; // Logging details // Format: method: // Methods: stdout, stderr, file, syslog // Parms: // stdout // none // stderr // none // file // filename // syslog // identity,facility,level // // identity: identity tag // facility: one of the syslog facilities described in syslog(3) // level: one of the syslog levels described in syslog(3) std::string log_launchtool_out; std::string log_launchtool_err; std::string log_child_stdout; std::string log_child_stderr; // When enabled, silently restart the child if it exists with exit status // `silent_restart_status', after a wait or `silent_restart_time' seconds. bool enable_silent_restart; int silent_restart_status; int silent_restart_time; // True if should execute verbosely bool verbose; // True if should enable debugging output bool debug; // True if should print an execution report after command completion bool stats; Cfg(const std::string& tag) throw (); void print() throw (); protected: static Cfg* instance; public: static void init(const std::string& tag) throw () { if (instance) delete instance; instance = new Cfg(tag); } static Cfg& get() { return *instance; } static bool initialized() { return instance != 0; } }; // vim:set ts=4 sw=4: #endif launchtool-0.8/src/LaunchtoolOutput.h0000644000175000017500000000635607617540715014771 00000000000000#ifndef LAUNCHTOOL_OUTPUT_H #define LAUNCHTOOL_OUTPUT_H #include #include #include // Output and logging system class OutputMethod { public: virtual void out(const std::string& str) throw () = 0; }; class StdoutOutput : public OutputMethod { public: virtual void out(const std::string& str) throw (); }; class StderrOutput : public OutputMethod { public: virtual void out(const std::string& str) throw (); }; class FileOutput : public OutputMethod { protected: FILE* oh; public: FileOutput(const std::string& file) throw (FileException); virtual ~FileOutput(); virtual void out(const std::string& str) throw (); }; class SyslogOutput : public OutputMethod { protected: std::string _identity; int _facility; int _prio; void open() throw (); public: SyslogOutput(const std::string& identity, const std::string& facility, const std::string& level) throw (); virtual ~SyslogOutput(); virtual void out(const std::string& str) throw (); }; // Singleton output class class Output { protected: static OutputMethod* _lauout; static OutputMethod* _lauerr; static OutputMethod* _cldout; static OutputMethod* _clderr; public: static void set_lauout(OutputMethod* m) throw () { if (_lauout) delete _lauout; _lauout = m; } static void set_lauerr(OutputMethod* m) throw () { if (_lauerr) delete _lauerr; _lauerr = m; } static void set_cldout(OutputMethod* m) throw () { if (_cldout) delete _cldout; _cldout = m; } static void set_clderr(OutputMethod* m) throw () { if (_clderr) delete _clderr; _clderr = m; } static void lauout(const std::string& str) throw () { if (_lauout) _lauout->out(str); } static void lauerr(const std::string& str) throw () { if (_lauerr) _lauerr->out(str); } static void cldout(const std::string& str) throw () { if (_cldout) _cldout->out(str); } static void clderr(const std::string& str) throw () { if (_clderr) _clderr->out(str); } static OutputMethod* getMethod(const std::string& str) throw (ConsistencyCheckException); }; class LaunchtoolMethod : public Log::Method { public: virtual void output(Log::LogLevel level, const char* tag, const char* func, const std::string& msg) throw () { switch (level) { case Log::DEBUG: case Log::INFO: case Log::UNUSUAL: Output::lauout(msg); break; default: Output::lauerr(msg); break; } } }; class LaunchtoolLogEnvironment : public Log::Filter { protected: static const int OUT_NONE = -1; static const int OUT_LAUNCHTOOL = 0; bool can_log_info; bool can_log_debug; Log::Method* launchtoolMethod; virtual int filter(Log::LogLevel level, const char* tag) const throw () { if (level > Log::INFO || (level == Log::INFO && can_log_info) || can_log_debug) return OUT_LAUNCHTOOL; else return OUT_NONE; } public: LaunchtoolLogEnvironment() throw () : can_log_info(true), can_log_debug(true) { launchtoolMethod = new LaunchtoolMethod(); Log::Logger::instance()->registerMethod(OUT_LAUNCHTOOL, launchtoolMethod); Log::Logger::instance()->setFilter(*this); } virtual ~LaunchtoolLogEnvironment() throw () { delete launchtoolMethod; } void setLogInfo(bool val) throw () { can_log_info = val; } void setLogDebug(bool val) throw () { can_log_debug = val; } }; // vim:set ts=4 sw=4: #endif launchtool-0.8/src/LaunchtoolOutput.cc0000644000175000017500000000773607617540715015132 00000000000000#include "LaunchtoolOutput.h" #include #include using namespace std; void StdoutOutput::out(const string& str) throw () { fwrite(str.data(), str.size(), 1, stdout); fputc('\n', stdout); } void StderrOutput::out(const string& str) throw () { fwrite(str.data(), str.size(), 1, stderr); fputc('\n', stderr); } FileOutput::FileOutput(const string& file) throw (FileException) : oh(0) { oh = fopen(file.c_str(), "at"); if (!oh) throw FileException(errno, "Trying to open " + file + " for appending"); } FileOutput::~FileOutput() { if (oh) fclose(oh); } void FileOutput::out(const string& str) throw () { fwrite(str.data(), str.size(), 1, oh); fputc('\n', oh); fflush(oh); } void SyslogOutput::open() throw () { openlog(_identity.c_str(), LOG_PID, _facility); } SyslogOutput::SyslogOutput(const string& identity, const string& facility, const string& level) throw () : _identity(identity) { if (facility == "LOG_AUTH") _facility = LOG_AUTH; else if (facility == "LOG_AUTHPRIV") _facility = LOG_AUTHPRIV; else if (facility == "LOG_CRON") _facility = LOG_CRON; else if (facility == "LOG_DAEMON") _facility = LOG_DAEMON; else if (facility == "LOG_FTP") _facility = LOG_FTP; else if (facility == "LOG_KERN") _facility = LOG_KERN; else if (facility == "LOG_LPR") _facility = LOG_LPR; else if (facility == "LOG_MAIL") _facility = LOG_MAIL; else if (facility == "LOG_NEWS") _facility = LOG_NEWS; else if (facility == "LOG_SYSLOG") _facility = LOG_SYSLOG; else if (facility == "LOG_USER") _facility = LOG_USER; else if (facility == "LOG_UUCP") _facility = LOG_UUCP; else if (facility == "LOG_LOCAL0") _facility = LOG_LOCAL0; else if (facility == "LOG_LOCAL1") _facility = LOG_LOCAL1; else if (facility == "LOG_LOCAL2") _facility = LOG_LOCAL2; else if (facility == "LOG_LOCAL3") _facility = LOG_LOCAL3; else if (facility == "LOG_LOCAL4") _facility = LOG_LOCAL4; else if (facility == "LOG_LOCAL5") _facility = LOG_LOCAL5; else if (facility == "LOG_LOCAL6") _facility = LOG_LOCAL6; else if (facility == "LOG_LOCAL7") _facility = LOG_LOCAL7; else _facility = LOG_USER; if (level == "LOG_EMERG") _prio = LOG_ALERT; else if (level == "LOG_CRIT") _prio = LOG_CRIT; else if (level == "LOG_ERR") _prio = LOG_ERR; else if (level == "LOG_WARNING") _prio = LOG_WARNING; else if (level == "LOG_NOTICE") _prio = LOG_NOTICE; else if (level == "LOG_INFO") _prio = LOG_INFO; else if (level == "LOG_DEBUG") _prio = LOG_DEBUG; else _prio = LOG_WARNING; open(); } SyslogOutput::~SyslogOutput() { closelog(); } void SyslogOutput::out(const string& str) throw () { syslog(_prio, "%.*s\n", PFSTR(str)); } OutputMethod* Output::_lauout = 0; OutputMethod* Output::_lauerr = 0; OutputMethod* Output::_cldout = 0; OutputMethod* Output::_clderr = 0; OutputMethod* Output::getMethod(const string& str) throw (ConsistencyCheckException) { size_t a = str.find(':'); if (a == string::npos) if (str == "ignore") return 0; else if (str == "stdout") return new StdoutOutput(); else if (str == "stderr") return new StderrOutput(); else throw ConsistencyCheckException("Unknown output method: " + str); string tmp = str.substr(0, a); if (tmp == "file") { try { return new FileOutput(str.substr(a + 1)); } catch (Exception& e) { throw ConsistencyCheckException(string("FileOutput did not initialize because of a ") + e.type() + ": " + e.desc()); } } else if (tmp == "syslog") { tmp = str.substr(a + 1); a = tmp.find(','); if (a == string::npos) throw ConsistencyCheckException("No facility provided for log method: " + str); string identity = tmp.substr(0, a); tmp = tmp.substr(a + 1); a = tmp.find(','); if (a == string::npos) throw ConsistencyCheckException("No level provided for log method: " + str); string facility = tmp.substr(0, a); return new SyslogOutput(identity, facility, tmp.substr(a + 1)); } else throw ConsistencyCheckException("Unknown output method: " + str); } // vim:set ts=4 sw=4: launchtool-0.8/src/test.cc0000644000175000017500000000573110764704363012547 00000000000000#include #include #include #include #include #include #include #include #define VERSION "1.0" /* * Print to stdout/stderr and print the signals it receives: used to test the launchtool. * * Called with -l will run in a loop * * Exits after three SIGINTs */ using namespace std; using namespace stringf; FILE* log = 0; static void out(const string& s) throw () { fprintf(stdout, "out: %.*s\n", PFSTR(s)); if (log) { fprintf(log, "out: %.*s\n", PFSTR(s)); fflush(log); } } static void err(const string& s) throw () { fprintf(stderr, "err: %.*s\n", PFSTR(s)); if (log) { fprintf(log, "err: %.*s\n", PFSTR(s)); fflush(log); } } static void sig(int signum) { static int term_count = 0; err("Received signal " + fmt(signum) + " (" + sys_siglist[signum] + ")"); if (signum == SIGINT) { term_count++; if (term_count == 3) _exit(0); } } // Setup signal masks and handlers void setup_signals() { struct sigaction sa; sigemptyset(&sa.sa_mask); sa.sa_flags = 0; sa.sa_handler = sig; for (int i = 0; i < 64; i++) sigaction(i, &sa, 0); } int main(int argc, const char* argv[]) { // Special actions int op_version = 0; // Operating parameters int op_status = -1; int op_loop = -1; char* help = "Test launchtool printing something on stdout and stderr,\n" "logging what it prints and printing the signals it receives.\n"; struct poptOption emptyTable[] = { POPT_TABLEEND }; struct poptOption optionsTable[] = { // Special actions { "version", 'V', POPT_ARG_NONE, &op_version, 0, "print version and exit", 0 }, { "status", 's', POPT_ARG_INT, &op_status, 0, "exit with the given status", "value" }, { "loop", 'l', POPT_ARG_NONE, &op_loop, 0, "never exit: repeat the prints at 1 second intervals", 0 }, POPT_AUTOHELP { NULL, 0, POPT_ARG_INCLUDE_TABLE, emptyTable, 0, help, 0 }, POPT_TABLEEND }; poptContext optCon = poptGetContext(NULL, argc, argv, optionsTable, 0); poptSetOtherOptionHelp(optCon, "[options]"); set_unexpected(DefaultUnexpected); if (argc < 1) { poptPrintHelp(optCon, stderr, 0); return 1; } // Process commandline int res = poptGetNextOpt(optCon); if (res != -1) { fprintf(stderr, "%s: %s\n\n", poptBadOption(optCon, POPT_BADOPTION_NOALIAS), poptStrerror(res)); poptPrintUsage(optCon, stderr, 0); return 1; } if (op_version) { printf("%s ver." VERSION "\n", argv[0]); return 0; } int exitStatus = op_status == -1 ? 0 : op_status; bool loop = op_loop == -1 ? false : op_loop; try { log = fopen("test.log", "a"); if (!log) throw FileException(errno, "opening test.log"); out("Starting"); err("Starting"); setup_signals(); do { time_t now = time(0); char* t = ctime(&now); t[strlen(t) - 1] = 0; out(t); err(t); sleep(1); } while (loop); } catch (Exception& e) { err(string(e.type()) + ": " + e.desc()); } out("Ending"); err("Ending"); if (log) fclose(log); return exitStatus; } launchtool-0.8/src/Makefile.in0000644000175000017500000004320711225104354013311 00000000000000# Makefile.in generated by automake 1.10.2 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without 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make to not export all variables. # Otherwise a system limit (for SysV at least) may be exceeded. .NOEXPORT: launchtool-0.8/src/test_daemon0000755000175000017500000000046507617540716013513 00000000000000#!./launctool -C tag = test_daemon command = ./test -s1 -l daemon = yes piddir = . blocked signals = SIGHUP forwarded signals = SIGUSR1 launchtool output = file:test_daemon_lo.log launchtool errors = file:test_daemon_le.log command output = file:test_daemon_co.log command errors = file:test_daemon_ce.log launchtool-0.8/src/test_logging0000755000175000017500000000075207617540716013675 00000000000000#!./launchtool -C # Runs launchtool not detached with a program that always exits with an error tag = test command = ./test -s1 wait times = 1 infinite runs = yes verbose = yes #visible tag = test #daemon = no #blocked signals = SIGHUP #silent restart status = 0 #silent restart time = 60 launchtool output = syslog:test,LOG_USER,LOG_INFO launchtool errors = syslog:test,LOG_USER,LOG_ERR command output = syslog:test,LOG_DAEMON,LOG_INFO command errors = syslog:test,LOG_DAEMON,LOG_ERR launchtool-0.8/src/MultiReader.cc0000644000175000017500000000772707617540715014016 00000000000000#include "MultiReader.h" #include // poll #include // fcntl #include // fcntl #include #include #undef LOGTAG #define LOGTAG "MultiReader" //#define FPRINTF_DEBUG #ifdef FPRINTF_DEBUG #include #endif using namespace std; using namespace stringf; /* static int set_nonblocking(int fd) throw (SystemException) { int oldfl; if (fcntl(fd, F_GETFL, &oldfl) == -1) throw SystemException(errno, "Reading file descriptor flags"); int newfl = oldfl | O_NONBLOCK; if (fcntl(fd, F_SETFL, &newfl) == -1) throw SystemException(errno, "Setting O_NONBLOCK on file descriptor flags"); return oldfl; } static void restore_file_flags(int fd, int oldfl) throw (SystemException) { if (fcntl(fd, F_SETFL, &oldfl) == -1) throw SystemException(errno, "Restoring old file descriptor flags"); } */ void MultiReader::addFD(int fd) throw (SystemException) { fds.push_back(fddata(fd, 0/*set_nonblocking(fd)*/)); #ifdef FPRINTF_DEBUG fprintf(stderr, "fd %d: %d\n", fds.size() - 1, fd); #endif } void MultiReader::readLoop() throw (SystemException, InterruptedException) { const unsigned int bufsize = 512; char buf[bufsize]; #ifdef FPRINTF_DEBUG fprintf(stderr, " *** Entering readLoop\n"); #endif // While there is output, read it while (fds.size()) { #ifdef FPRINTF_DEBUG fprintf(stderr, "Before select: %d fds to watch\n", fds.size()); #endif fd_set fdset; FD_ZERO(&fdset); int maxfd = 0; for (unsigned int i = 0; i < fds.size(); i++) { #ifdef FPRINTF_DEBUG fprintf(stderr, "Adding fd %d\n", fds[i].fd); #endif FD_SET(fds[i].fd, &fdset); if (fds[i].fd > maxfd) maxfd = fds[i].fd; } ++maxfd; int res = select(maxfd, &fdset, 0, 0, 0); #ifdef FPRINTF_DEBUG fprintf(stderr, "select() (maxfd=%d) returned %d\n", maxfd, res); #endif if (res == -1) { if (errno != EINTR) throw SystemException(errno, "Checking for output on " + fmt(fds.size()) + " file descriptors"); else throw InterruptedException("Checking for output on " + fmt(fds.size()) + " file descriptors"); } else if (res == 0) ;// log_warn("select returned 0 even with an infinite timeout"); else { unsigned int cur_fdcount = fds.size(); for (unsigned int i = 0; i < cur_fdcount; i++) { #ifdef FPRINTF_DEBUG if (FD_ISSET(fds[i].fd, &fdset)) fprintf(stderr, "fd %d: %d has data\n", i, fds[i].fd); else fprintf(stderr, "fd %d: %d does not have data\n", i, fds[i].fd); #endif if (FD_ISSET(fds[i].fd, &fdset)) { // Read all pending data int sz; sz = read(fds[i].fd, buf, bufsize); #ifdef FPRINTF_DEBUG fprintf(stderr, "read returned %d; errno: %d (%s)\n", sz, errno, strerror(errno)); #endif if (sz > 0) { #ifdef FPRINTF_DEBUG fprintf(stderr, "Data was: %.*s\n", sz, buf); #endif // Notify reception of new data handleData(fds[i].fd, buf, sz); } if (sz == -1) throw SystemException(errno, "reading data from "); if (sz == 0) { // Notify EOF on this handle handleEOF(fds[i].fd); // Delete the EOF-ed handle from the poll list //restore_file_flags(fds[i].fd, fds[i].old_flags); if (i != fds.size() - 1) { fds[i] = fds[fds.size() - 1]; } fds.pop_back(); #ifdef FPRINTF_DEBUG fprintf(stderr, "fd %d: %d reported EOF; fdcount: %d\n", i, fds[i].fd, fds.size()); #endif } #ifdef FPRINTF_DEBUG fprintf(stderr, "fd %d: %d end reading data\n", i, fds[i].fd); #endif } } } } #ifdef FPRINTF_DEBUG fprintf(stderr, " *** read loop ended\n"); #endif } void LineMultiReader::handleData(int fd, char* buf, unsigned int size) throw () { for (unsigned int i = 0; i < size; i++) if (buf[i] == '\n') { listeners[fd]->haveLine(fd, linebuf); linebuf = string(); } else linebuf += buf[i]; } void LineMultiReader::handleEOF(int fd) throw () { if (linebuf.size()) { listeners[fd]->haveLine(fd, linebuf); listeners[fd]->haveEOF(fd); } } // vim:set ts=4 sw=4: launchtool-0.8/src/common/0000777000175000017500000000000011225107530012611 500000000000000launchtool-0.8/src/common/Config.cc0000644000175000017500000002675010764703754014274 00000000000000#include "Config.h" #include //#include #include #include #include #include #include #include #include // access #include // errno #include using namespace std; using namespace stringf; //#undef LOGTAG //#define LOGTAG "conffile" #define log_pedant(a...) do { } while(0) #define log_info(a...) do { } while(0) #define log_error(a...) do { } while(0) /* #define log_pedant(a...) do { printf(##a); putchar('\n'); } while (0) #define log_info(a...) do { printf(##a); putchar('\n'); } while (0) #define log_error(a...) do { printf(##a); putchar('\n'); } while (0) */ static string substr(const string& s, const regmatch_t& r) throw() { return s.substr(r.rm_so, r.rm_eo - r.rm_so); } template class map; template class map; class ConfigNode { protected: /// Reference count to this node int _ref; /// Type for the child map typedef map cmap_t; /// Type for the values map typedef map vmap_t; /// Child map cmap_t cmap; /// Values map vmap_t vmap; /// Increase the reference count void ref() throw () { ++_ref; } /// Decrease the reference count, returning true if it gets to 0 bool unref() throw () { return (--_ref == 0); } /// Set the value of node `key' to `val' void set(const string& key, ConfigNode* val) throw () { if (val) val->ref(); // Do it early to correctly handle the case of x = x; ConfigNode*& dest = cmap[key]; if (dest && dest->unref()) delete dest; dest = val; } /// Set the value of key `key' to `val' void set(const string& key, const string& val) throw () { vmap[key] = val; } /// Get the value of key, throwing an exception if not found ConfigNode* node(const string& key) const throw (ConfigKeyNotFoundException) { cmap_t::const_iterator i = cmap.find(key); if (i == cmap.end()) return 0; return i->second; } /// Get the value of key, creating it if it does not exist bool value(const string& key, string& dest) const throw (ConfigKeyNotFoundException) { vmap_t::const_iterator i = vmap.find(key); if (i == vmap.end()) return false; dest = i->second; return true; } ConfigNode* findNode(const string& path) const throw () { size_t sep = path.find('/'); if (sep == string::npos) { log_pedant("Local %.*s", PFSTR(path)); return node(path); } else { log_pedant("Sub %.*s / %.*s", PFSTR(path.substr(0, sep)), PFSTR(path.substr(sep + 1))); //for (cmap_t::const_iterator i = cmap.begin(); i != cmap.end(); ++i) //log_pedant(" Avl: %.*s.", PFSTR(i->first)); ConfigNode* sub = node(path.substr(0, sep)); if (sub) return sub->findNode(path.substr(sep + 1)); else return 0; } } /// Get the Config present at `path'/`path1` in dest. Return true if the /// value was found, else false. If false is returned, dest is left /// untouched. bool findValue(const string& path, string& dest) const throw () { size_t sep = path.find('/'); if (sep == string::npos) return value(path, dest); else { ConfigNode* sub = findNode(path.substr(0, sep)); if (sub) return sub->value(path.substr(sep + 1), dest); else return false; } } ConfigNode() throw () : _ref(0) {} virtual ~ConfigNode() { for (cmap_t::iterator i = cmap.begin(); i != cmap.end(); i++) if (i->second->unref()) delete i->second; } friend class Config; friend class ConfFileParser; }; // // Config // Config::Config() throw () : node(new ConfigNode) { node->ref(); } Config::Config(ConfigNode* n) throw () : node(n) { node->ref(); } Config::Config(const Config& c) throw () { if (c.node) c.node->ref(); node = c.node; } Config::~Config() throw () { if (node->unref()) delete node; } Config& Config::operator=(const Config& c) { if (c.node) c.node->ref(); // Do it early to correctly handle the case of x = x; if (node && node->unref()) delete node; node = c.node; return *this; } Config Config::getSection(const string& path) const throw (ConfigKeyNotFoundException) { ConfigNode* sub = node->findNode(path); if (sub) return sub; else throw ConfigKeyNotFoundException(path); } string Config::getString(const string& path) const throw (ConfigKeyNotFoundException) { string res; if (node->findValue(path, res)) return res; else throw ConfigKeyNotFoundException(path); } string Config::getString(const string& path, const string& dflt) const throw () { string res; if (node->findValue(path, res)) return res; else return dflt; } string Config::getString(const string& path, const string& path1, const string& dflt) const throw () { ConfigNode* sub = node->findNode(path); if (sub) { string res; if (sub->value(path1, res)) return res; else return dflt; } else return dflt; } int Config::getInt(const string& path) const throw (ConfigKeyNotFoundException) { return atoi(getString(path).c_str()); } int Config::getInt(const string& path, int dflt) const throw () { string res; if (node->findValue(path, res)) return atoi(res.c_str()); else return dflt; } int Config::getInt(const string& path, const string& path1, int dflt) const throw () { ConfigNode* sub = node->findNode(path); if (sub) { string res; if (sub->value(path1, res)) return atoi(res.c_str()); else return dflt; } else return dflt; } void Config::visitNodes(NodeVisitor& v) const throw (Exception) { for (ConfigNode::cmap_t::iterator i = node->cmap.begin(); i != node->cmap.end(); i++) if (!v.visitNode(i->first, i->second)) break; } void Config::visitValues(ValueVisitor& v) const throw (Exception) { for (ConfigNode::vmap_t::iterator i = node->vmap.begin(); i != node->vmap.end(); i++) if (!v.visitValue(i->first, i->second)) break; } class Printer : public Config::NodeVisitor, public Config::ValueVisitor { protected: string root; public: Printer(const string& root) throw () : root(root) {} virtual ~Printer() throw () {} virtual bool visitNode(const string& str, const Config& node) throw (Exception) { Printer p(root + '/' + str); node.visitNodes(p); node.visitValues(p); return true; } virtual bool visitValue(const string& str, const string& val) throw (Exception) { printf("%.*s/%.*s = %.*s\n", PFSTR(root), PFSTR(str), PFSTR(val)); return true; } }; void Config::dump(const string& base) const throw () { Printer p(base); visitNodes(p); visitValues(p); } // // ConfFileParser // class ConfFileParser { protected: struct input { string name; string base_path; FILE* stream; }; string line; stack in; Regex empty_re; Regex include_re; Regex alias_re; Regex bopen_re; Regex bclose_re; Regex assign_re; Regex assign1_re; bool eof; string nextLine() throw (); bool pushFile(const string& file) throw (FileException); bool popFile() throw (); ConfigNode* parse_node() throw (RegexException); public: ConfFileParser() throw(RegexException) : line(), in(), empty_re("^[[:blank:]]*(#.+)?$", REG_EXTENDED | REG_NOSUB), include_re("^[[:blank:]]*include[[:blank:]]+([^[:blank:]]+)[[:blank:]]*(#.+)?$", REG_EXTENDED), alias_re( "^[[:blank:]]*alias[[:blank:]]+([^[:blank:]]+)[[:blank:]]+([^[:blank:]]+)[[:blank:]]*(#.+)?$", REG_EXTENDED), bopen_re( "^[[:blank:]]*([^{=]+[^[:blank:]{=])[[:blank:]]*\\{[[:blank:]]*(#.+)?$", REG_EXTENDED), bclose_re( "^[[:blank:]]*\\}[[:blank:]]*(#.+)?$", REG_EXTENDED | REG_NOSUB), assign_re( "^[[:blank:]]*([^=]+[^[:blank:]=])[[:blank:]]*=[[:blank:]]*\"((\\\\.|[^\"])*)\"[[:blank:]]*(#.+)?$", REG_EXTENDED), assign1_re( "^[[:blank:]]*([^=]+[^[:blank:]=])[[:blank:]]*=[[:blank:]]*([^#]*[^[:blank:]#])[[:blank:]]*(#.+)?$", REG_EXTENDED), eof(false) {} Config parse(const string& file) throw (FileException, RegexException); }; string ConfFileParser::nextLine() throw () { if (!in.size()) { eof = true; return string(); } FILE* stm = in.top().stream; if (feof(stm)) { if (popFile()) return nextLine(); eof = true; return string(); } line = ""; int c; while ((c = getc(stm)) != '\n' && c != EOF) line += c; regmatch_t matches[2]; if (include_re.match(line.c_str(), 2, matches) && matches[1].rm_so != -1) { string fname = in.top().base_path; fname += "/"; fname += line.substr(matches[1].rm_so, matches[1].rm_eo); //fprintf(stderr, "File: %s, base: %s, result: %s\n", // line.substr(matches[1].rm_so, matches[1].rm_eo).c_str(), // in.top().base_path.c_str(), // fname.c_str()); pushFile(fname.c_str()); return nextLine(); } return line; } bool ConfFileParser::pushFile(const string& file) throw (FileException) { // Must not alter t.stream if the file can't be open due to lack of // permissions FILE* nstream = fopen(file.c_str(), "rt"); //if (access(file, R_OK) == -1) if (nstream == 0) if (errno == EACCES) { log_info("Skipped inclusion of unreadable file \"%.*s\"", PFSTR(file)); return false; } else throw FileException(errno, "opening " + file); input t; //t.stream = fopen(file, "rt"); t.stream = nstream; log_info("Including file %.*s", PFSTR(file)); t.name = file; unsigned int bend = t.name.rfind('/'); if (bend == string::npos) t.base_path = "."; else t.base_path = t.name.substr(0, bend); in.push(t); return true; } bool ConfFileParser::popFile() throw () { if (!in.size()) return false; fclose(in.top().stream); in.pop(); return true; } struct alias { string a; string b; alias (const string& sa, const string& sb) : a(sa), b(sb) {} }; template class deque; ConfigNode* ConfFileParser::parse_node() throw (RegexException) { deque aqueue; ConfigNode* node = new ConfigNode(); while (!eof) { string s = nextLine(); regmatch_t matches[4]; if (empty_re.match(s.c_str())) continue; if (alias_re.match(s.c_str(), 4, matches)) { aqueue.push_back(new alias(substr(s, matches[1]), substr(s, matches[2]))); log_pedant("Alias: %.*s (%.*s -> %.*s)", PFSTR(s), PFSTR(aqueue.back()->a), PFSTR(aqueue.back()->b)); } else if (assign_re.match(s.c_str(), 4, matches)) { log_pedant("Assign: %.*s", PFSTR(s)); node->set(substr(s, matches[1]), substr(s, matches[2])); } else if (assign1_re.match(s.c_str(), 4, matches)) { log_pedant("Assign unquoted: %.*s", PFSTR(s)); node->set(substr(s, matches[1]), substr(s, matches[2])); } else if (bopen_re.match(s.c_str(), 4, matches)) { log_pedant("Bopen: %.*s", PFSTR(s)); string path = substr(s, matches[1]); node->set(path, parse_node()); } else if (bclose_re.match(s.c_str())) { log_pedant("Bclose: %.*s", PFSTR(s)); break; } else { fprintf(stderr, "Parse error on line \"%.*s\": ignored\n", PFSTR(s)); } } // Apply path aliases while (aqueue.size()) { alias* anode = aqueue.front(); log_pedant("Applying alias `%.*s' -> `%.*s'", PFSTR(anode->a), PFSTR(anode->b)); ConfigNode* dest = node->findNode(anode->b); if (dest) node->set(anode->a, dest); else { string val; if (node->findValue(anode->b, val)) node->set(anode->a, val); else fprintf(stderr, "Missing target for mapping %.*s -> %.*s\n", PFSTR(anode->a), PFSTR(anode->b)); } aqueue.pop_front(); } return node; } Config ConfFileParser::parse(const string& file) throw (FileException, RegexException) { pushFile(file); return parse_node(); } // // Config // Config Config::parse(const string& file) throw (FileException) { try { ConfFileParser parser; return parser.parse(file); } catch (RegexException& e) { fprintf(stderr, "%s: %.*s", e.type(), PFSTR(e.desc())); return Config(); } } // vim:set ts=4 sw=4: launchtool-0.8/src/common/Makefile.am0000644000175000017500000000054111225102072014555 00000000000000## Process this file with automake to produce Makefile.in noinst_LIBRARIES = libcommon.a libcommon_a_SOURCES = stringf.cc Exception.cc Logger.cc LoggerMethods.cc Pidfile.cc ChildProcess.cc Exec.cc Regex.cc Config.cc INCLUDES = -I.. -I../.. EXTRA_DIST = ChildProcess.h Config.h Exception.h Exec.h Logger.h LoggerMethods.h Pidfile.h Regex.h stringf.h launchtool-0.8/src/common/Logger.cc0000644000175000017500000000420007617540723014266 00000000000000#ifdef HAVE_CONFIG_H #include #endif #include "Logger.h" using namespace Log; // // Logger // Logger* Logger::_instance = 0; Logger* Logger::instance() throw () { if (! _instance) _instance = new Logger(); return _instance; } /* static enum stderr_state_type stderr_state = Yes; static bool debug_output = false; void set_debug(bool val) { debug_output = val; } void set_stderr(enum stderr_state_type val) { switch (val) { case Yes: call_closelog(); break; case No: call_openlog(); break; case Restricted: call_openlog(); break; } stderr_state = val; } void log_debug(const char* fmt, ...) ATTR_PRINTF(1, 2) { if (debug_output) { va_list ap; va_start(ap, fmt); switch (stderr_state) { case Yes: //if (isatty(fileno(stderr))) //{ vfprintf(stderr, fmt, ap); fputc('\n', stderr); //} break; case No: case Restricted: vsyslog(LOG_DEBUG, fmt, ap); break; } va_end(ap); } } void log_info(const char* fmt, ...) ATTR_PRINTF(1, 2) { va_list ap; va_start(ap, fmt); switch (stderr_state) { case Yes: //if (isatty(fileno(stderr))) //{ vfprintf(stderr, fmt, ap); fputc('\n', stderr); //} break; case No: case Restricted: vsyslog(LOG_INFO, fmt, ap); break; } va_end(ap); } void log_warn(const char* fmt, ...) ATTR_PRINTF(1, 2) { va_list ap; va_start(ap, fmt); switch (stderr_state) { case Yes: case Restricted: vfprintf(stderr, fmt, ap); fputc('\n', stderr); break; case No: vsyslog(LOG_WARNING, fmt, ap); break; } va_end(ap); } void log_error(const char* fmt, ...) ATTR_PRINTF(1, 2) { va_list ap; va_start(ap, fmt); switch (stderr_state) { case Yes: case Restricted: vfprintf(stderr, fmt, ap); fputc('\n', stderr); break; case No: vsyslog(LOG_ERR, fmt, ap); break; } va_end(ap); } void log_crit(const char* fmt, ...) ATTR_PRINTF(1, 2) { va_list ap; va_start(ap, fmt); switch (stderr_state) { case Yes: case Restricted: vfprintf(stderr, fmt, ap); fputc('\n', stderr); break; case No: vsyslog(LOG_CRIT, fmt, ap); break; } va_end(ap); } */ // vim:set ts=4 sw=4: launchtool-0.8/src/common/LoggerMethods.cc0000644000175000017500000001015507617540724015621 00000000000000#ifdef HAVE_CONFIG_H #include #endif #include "LoggerMethods.h" #include #include #include #include //#include // isatty using namespace Log; using namespace std; // // FileMethod // FileMethod::FileMethod(const string& file) throw (FileException) : out(0), fname(file) { out = fopen(fname.c_str(), "at"); if (!out) throw FileException(errno, "opening logfile " + fname); } FileMethod::~FileMethod() throw () { if (out) fclose((FILE*)out); } void FileMethod::output(LogLevel level, const char* tag, const char* func, const string& msg) throw () { time_t now = time(NULL); struct tm pnow; localtime_r(&now, &pnow); char timebuf[20]; /* * Strftime specifiers used here: * %b The abbreviated month name according to the current locale. * %d The day of the month as a decimal number (range 01 to 31). * %e Like %d, the day of the month as a decimal number, but a * leading zero is replaced by a space. (SU) * %T The time in 24-hour notation (%H:%M:%S). (SU) */ strftime(timebuf, 20, "%b %e %T", &pnow); fprintf((FILE*)out, "%s %s %s: %.*s\n", timebuf, tag, func, PFSTR(msg)); if (level >= WARN) fflush((FILE*)out); } // // StderrMethod // void StderrMethod::output(LogLevel level, const char* tag, const char* func, const string& msg) throw () { fprintf(stderr, "%s %s: %.*s\n", tag, func, PFSTR(msg)); } // // SyslogMethod // SyslogMethod::SyslogMethod(const string& ident, int facility) throw () : ident(ident), facility(facility) { openlog(ident.c_str(), LOG_PID, facility); } SyslogMethod::~SyslogMethod() throw () { closelog(); } void SyslogMethod::output(LogLevel level, const char* tag, const char* func, const string& msg) throw () { int prio; switch (level) { case DEBUG: prio = LOG_DEBUG; break; case INFO: prio = LOG_INFO; break; case UNUSUAL: prio = LOG_NOTICE; break; case WARN: prio = LOG_WARNING; break; case ERR: prio = LOG_ERR; break; case CRIT: prio = LOG_CRIT; break; //LOG_ALERT, LOG_EMERG default: prio = LOG_WARNING; break; } syslog(prio, "%s %s: %.*s", tag, func, PFSTR(msg)); } void SyslogMethod::setupForkedChild() throw () { closelog(); openlog(ident.c_str(), LOG_PID, facility); } /* static enum stderr_state_type stderr_state = Yes; static bool debug_output = false; void set_debug(bool val) { debug_output = val; } void set_stderr(enum stderr_state_type val) { switch (val) { case Yes: call_closelog(); break; case No: call_openlog(); break; case Restricted: call_openlog(); break; } stderr_state = val; } void log_debug(const char* fmt, ...) ATTR_PRINTF(1, 2) { if (debug_output) { va_list ap; va_start(ap, fmt); switch (stderr_state) { case Yes: //if (isatty(fileno(stderr))) //{ vfprintf(stderr, fmt, ap); fputc('\n', stderr); //} break; case No: case Restricted: vsyslog(LOG_DEBUG, fmt, ap); break; } va_end(ap); } } void log_info(const char* fmt, ...) ATTR_PRINTF(1, 2) { va_list ap; va_start(ap, fmt); switch (stderr_state) { case Yes: //if (isatty(fileno(stderr))) //{ vfprintf(stderr, fmt, ap); fputc('\n', stderr); //} break; case No: case Restricted: vsyslog(LOG_INFO, fmt, ap); break; } va_end(ap); } void log_warn(const char* fmt, ...) ATTR_PRINTF(1, 2) { va_list ap; va_start(ap, fmt); switch (stderr_state) { case Yes: case Restricted: vfprintf(stderr, fmt, ap); fputc('\n', stderr); break; case No: vsyslog(LOG_WARNING, fmt, ap); break; } va_end(ap); } void log_error(const char* fmt, ...) ATTR_PRINTF(1, 2) { va_list ap; va_start(ap, fmt); switch (stderr_state) { case Yes: case Restricted: vfprintf(stderr, fmt, ap); fputc('\n', stderr); break; case No: vsyslog(LOG_ERR, fmt, ap); break; } va_end(ap); } void log_crit(const char* fmt, ...) ATTR_PRINTF(1, 2) { va_list ap; va_start(ap, fmt); switch (stderr_state) { case Yes: case Restricted: vfprintf(stderr, fmt, ap); fputc('\n', stderr); break; case No: vsyslog(LOG_CRIT, fmt, ap); break; } va_end(ap); } */ // vim:set ts=4 sw=4: launchtool-0.8/src/common/Exec.h0000644000175000017500000000404607617540723013605 00000000000000#ifndef EXEC_H #define EXEC_H /* * Copyright (C) 2002 Enrico Zini * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "Exception.h" // Base class to costruct objects that run child processes class Exec { protected: // TODO: if allocation fails, then probably also allocation in // exception throwing is going to fail. What should I do to report // out of memory errors? I don't know. class strlist { protected: char** ptr; int cur; int size; void expand() throw (); public: strlist(int start_size = 8) throw (); ~strlist() throw (); void add(const char* str) throw (); void add(const std::string& str) throw (); char *const * get() throw () { if (cur >= size) expand(); ptr[cur] = 0; return ptr; } }; std::string program; strlist argv; strlist env; public: /// Create a new object that will execute program `program' Exec(const std::string& program) throw () : program(program) {} /// Add an argument to the argument list of the program void addArg(const std::string& arg) throw () { argv.add(arg); } /// Add a new item (a string in the form "VAR=value") to the environment of /// the program void addEnv(const std::string& envstr) throw () { env.add(envstr); } /// execve() the program, never returning if all goes well void exec() throw (SystemException); }; // vim:set ts=4 sw=4: #endif launchtool-0.8/src/common/Regex.cc0000644000175000017500000000236307620755277014137 00000000000000#include "Regex.h" using namespace stringf; using namespace std; ////// RegexException RegexException::RegexException(const regex_t& re, int code, const string& context) throw () : SystemException(code, context) { int size = 64; char* msg = new char[size]; int nsize = regerror(code, &re, msg, size); if (nsize < size) { delete msg; msg = new char[nsize]; regerror(code, &re, msg, nsize); } _message = msg; delete msg; } ////// Regex Regex::Regex(const char* expr, int flags) throw(RegexException) { int res = regcomp(&re, expr, flags); if (res) throw RegexException(re, res, fmt("Compiling regexp \"%s\"", expr)); } bool Regex::match(const char* str, int flags) throw(RegexException) { int res = regexec(&re, str, 0, 0, flags); switch (res) { case 0: return true; case REG_NOMATCH: return false; default: throw RegexException(re, res, fmt("Matching string \"%s\"", str)); } } bool Regex::match(const char* str, int nmatch, regmatch_t pmatch[], int flags) throw(RegexException) { int res = regexec(&re, str, nmatch, pmatch, flags); switch (res) { case 0: return true; case REG_NOMATCH: return false; default: throw RegexException(re, res, fmt("Matching string \"%s\"", str)); } } // vim:set ts=4 sw=4: launchtool-0.8/src/common/ChildProcess.h0000644000175000017500000000667507617540722015314 00000000000000#ifndef CHILD_PROCESS_H #define CHILD_PROCESS_H #include #include class Process { protected: void detachFromTTY() throw (SystemException); public: // TODO: since the destructor is called twice (one in the parent and one in // the child), it could be useful to add a bool isChild() method to let the // destructor and other functions know where they are operating. The value // returned can be set by ChildProcess::fork. virtual int main() throw () = 0; /// Pretty-print the return value of a process into a string static std::string formatStatus(int status) throw (); /// Change working directory static void chdir(const std::string& dir) throw (SystemException); /// Change root directory static void chroot(const std::string& dir) throw (SystemException); /// Change umask (always succeeds and returns the previous umask) static mode_t umask(mode_t mask) throw (); /// Set user and group permissions static void setPerms(const std::string& user) throw (ConsistencyCheckException, SystemException); static void setPerms(const std::string& user, const std::string& group) throw (ConsistencyCheckException, SystemException); static void setPerms(uid_t user) throw (ConsistencyCheckException, SystemException); static void setPerms(uid_t user, gid_t group) throw (ConsistencyCheckException, SystemException); /// Get current resource limits; store also maximum resource limits in max /// if nonzero static int getCPUTimeLimit(int* max = 0) throw (SystemException); static int getFileSizeLimit(int* max = 0) throw (SystemException); static int getDataMemoryLimit(int* max = 0) throw (SystemException); static int getChildrenLimit(int* max = 0) throw (SystemException); static int getOpenFilesLimit(int* max = 0) throw (SystemException); static int getCoreSizeLimit(int* max = 0) throw (SystemException); /// Set resource limits static void setCPUTimeLimit(int value) throw (SystemException); static void setFileSizeLimit(int value) throw (SystemException); static void setDataMemoryLimit(int value) throw (SystemException); static void setChildrenLimit(int value) throw (SystemException); static void setOpenFilesLimit(int value) throw (SystemException); static void setCoreSizeLimit(int value) throw (SystemException); }; struct rusage; class ChildProcess { protected: Process* _proc; pid_t _pid; public: ChildProcess(Process* proc) throw () : _proc(proc), _pid(-1) {} ~ChildProcess() throw () {} /// Fork a subprocess to run proc. If one of the std*fd variables is /// non-null, create a pipe connected to the corresponding file descriptor /// of the child process and store the parent end in the std*fd variable. /// After this function exits successfully, `proc' can safely be deleted. pid_t fork(int* stdinfd = 0, int* stdoutfd = 0, int* stderrfd = 0) throw (SystemException); /// Get the pid of the child process or (pid_t)-1 if no child is running pid_t pid() const throw () { return _pid; } /// Wait for the child to finish, returing its exit status. Return -1 if /// no child is running. /// TODO: gracefully handle the EINTR error code int wait() throw (SystemException, InterruptedException); /// Wait for the child to finish, returing its exit status and storing /// resource usage informations in `ru'. Return -1 if no child is running. /// TODO: gracefully handle the EINTR error code int wait(struct rusage* ru) throw (SystemException, InterruptedException); }; // vim:set ts=4 sw=4: #endif launchtool-0.8/src/common/Logger.h0000644000175000017500000001140607617540723014136 00000000000000#ifndef LOGGER_H #define LOGGER_H #include #include /// Default logtag to use if a source does not provide one #define LOGTAG "" ////// The log calls /// Log debugging messages #if 1 #define log_debug(msg) \ Log::Logger::instance()->debug(LOGTAG, __FUNCTION__, msg) #else #define log_debug(msg) \ do {} while(0) #endif /// Log an informational message on a correct event #if 1 #define log_info(msg) \ Log::Logger::instance()->info(LOGTAG, __FUNCTION__, msg) #else #define log_info(msg) \ do {} while(0) #endif /// Log a message for an unusual but correct event #if 1 #define log_unusual(msg) \ Log::Logger::instance()->unusual(LOGTAG, __FUNCTION__, msg) #else #define log_unusual(msg) \ do {} while(0) #endif /// Log a warning message #if 1 #define log_warn(msg) \ Log::Logger::instance()->warn(LOGTAG, __FUNCTION__, msg) #else #define log_warn(msg) \ do {} while(0) #endif /// Log an error message #if 1 #define log_err(msg) \ Log::Logger::instance()->err(LOGTAG, __FUNCTION__, msg) #else #define log_err(msg) \ do {} while(0) #endif /// Log a critical event #if 1 #define log_crit(msg) \ Log::Logger::instance()->crit(LOGTAG, __FUNCTION__, msg) #else #define log_crit(msg) \ do {} while(0) #endif /// Namespace containing all logging functions namespace Log { /// Urgency of a log message enum LogLevel { DEBUG = 1, INFO = 2, UNUSUAL = 3, WARN = 4, ERR = 5, CRIT = 6 }; /// Interface for filters to be applied to log messages class Filter { public: /// Filter function: return the id of the previously registered output /// method to use to log a message with the given log level and tag. /// Return -1 if the message should be ignored. virtual int filter(LogLevel level, const char* tag) const throw () = 0; }; class Method { public: /// Output the message `msg', with message metadata in `level', `tag' and /// `func' virtual void output(LogLevel level, const char* tag, const char* func, const std::string& msg) throw () = 0; /// Called in the child process after a fork to allow log methods to /// perform needed setup routines virtual void setupForkedChild() throw () {} }; /// Singleton Logger class implementing the logging system class Logger { protected: /// Maximum number of supported methods static const int max_method = 9; /// Singleton logger instance static Logger* _instance; /// Filter to be applied to log messages; if 0, all messages are logged const Filter* filter; /// Logging output objects ready to be used by this logger Method* methods[max_method]; /// Log the message `msg' with urgency `level' and tag `tag', from function /// `func' void log(LogLevel level, const char* tag, const char* func, const std::string& msg) throw () { int id = filter ? filter->filter(level, tag) : -1; if (id != -1 && methods[id]) methods[id]->output(level, tag, func, msg); } Logger() : filter(0) { for (int i = 0; i < max_method; i++) methods[i] = 0; } virtual ~Logger() { for (int i = 0; i < max_method; i++) if (methods[i]) delete methods[i]; } public: /// Register an output method in this logger void registerMethod(int id, Method* method = 0) throw () { if (id < max_method) methods[id] = method; } /// Set the filter for log messages void setFilter(const Filter& f) throw () { filter = &f; } /// Called in the child process after a fork to allow log methods to /// perform needed setup routines void setupForkedChild() throw () { for (int i = 0; i < max_method; i++) if (methods[i]) methods[i]->setupForkedChild(); } /// Log a debug message void debug(const char* tag, const char* func, const std::string& msg) throw () { log(DEBUG, tag, func, msg); } /// Log an informational message void info(const char* tag, const char* func, const std::string& msg) throw () { log(INFO, tag, func, msg); } /// Log an informational but unusual message void unusual(const char* tag, const char* func, const std::string& msg) throw () { log(UNUSUAL, tag, func, msg); } /// Log a warning message void warn(const char* tag, const char* func, const std::string& msg) throw () { log(WARN, tag, func, msg); } /// Log an error message void err(const char* tag, const char* func, const std::string& msg) throw () { log(ERR, tag, func, msg); } /// Log a critical message void crit(const char* tag, const char* func, const std::string& msg) throw () { log(CRIT, tag, func, msg); } /// Get the singleton logger instance static Logger* instance() throw (); }; }; /* enum stderr_state_type { Yes, No, Restricted }; // Notify if stderr is available (true) or not (false) void set_stderr(enum stderr_state_type val); // Enable or disable debug output // Note: debug output is disabled by default void set_debug(bool val); */ // vim:set ts=4 sw=4: #endif launchtool-0.8/src/common/Config.h0000644000175000017500000000535407617540723014131 00000000000000#ifndef CONFIGNODE_H #define CONFIGNODE_H #include #include class ConfigKeyNotFoundException : public Exception { protected: std::string key; public: ConfigKeyNotFoundException(const std::string& key) throw () : key(key) {} ~ConfigKeyNotFoundException() throw () {} const char* type() const throw () { return "ConfigKeyNotFoundException"; } std::string desc() const throw () { return "Key " + key + " not found"; } }; class ConfigNode; /// Provide access to configuration values. /** * Values are accessed via path strings, like a path in a file system. * The value database can be read from one or more configuration files. */ class Config { protected: /// Node stored in this Config ConfigNode* node; public: class NodeVisitor { public: virtual bool visitNode(const std::string& str, const Config& node) throw (Exception) = 0; }; class ValueVisitor { public: virtual bool visitValue(const std::string& str, const std::string& val) throw (Exception) = 0; }; Config() throw (); Config(ConfigNode* n) throw (); Config(const Config& c) throw (); ~Config() throw (); Config& operator=(const Config& c); /// Get the section found at path `path' Config getSection(const std::string& path) const throw (ConfigKeyNotFoundException); /// Get the value of `path', parsed as a string std::string getString(const std::string& path) const throw (ConfigKeyNotFoundException); /// Get the value of `path', parsed as a string, or dflt if `path' is not /// present std::string getString(const std::string& path, const std::string& dflt) const throw (); /// Get the value of `path'/`path1', parsed as a string, or dflt if `path' /// is not present std::string getString(const std::string& path, const std::string& path1, const std::string& dflt) const throw (); /// Get the value of `path', parsed as a string int getInt(const std::string& path) const throw (ConfigKeyNotFoundException); /// Get the value of `path', parsed as an int, or dflt if `path' is not /// present int getInt(const std::string& path, int dflt) const throw (); /// Get the value of `path'/`path1', parsed as an int, or dflt if `path' /// is not present int getInt(const std::string& path, const std::string& path1, int dflt) const throw (); /// Visit all subsections of this Config void visitNodes(NodeVisitor& v) const throw (Exception); /// Visit all values of this Config void visitValues(ValueVisitor& v) const throw (Exception); /// Dump the contents of this node and all its children, printing them as /// rooted in `base', to stdout void dump(const std::string& base = "") const throw (); /// Read data from `fname' static Config parse(const std::string& fname) throw (FileException); }; // vim:set ts=4 sw=4: #endif launchtool-0.8/src/common/Pidfile.h0000644000175000017500000000246007617540724014274 00000000000000#ifndef PIDFILE_H #define PIDFILE_H #include #include /// Encapsulates the handling of a pid file /** * Pidfile provides all functions required to manage a pidfile. * If the pid directory has not been specified, pidfiles are read, written and * created in the directory PID_DIR */ class Pidfile { protected: std::string name; bool delete_on_exit; public: /// Construct the pidfile manager for (dir or PID_DIR)/.pid Pidfile(const std::string& tag, const std::string& dir = ""); /// Delete the pidfile if takeover was previously invoked ~Pidfile(); /// Read the content of the pid file pid_t read() throw (FileException); /// Kill the pid contained in the pidfile with signal `sig'. Returns false /// if no corresponding process is running bool kill(int sig) throw (SystemException); /// Check if the pid contained in the pid_file corresponds to a running process bool is_active() throw (FileException); /// Write the current pid in the file, and set the file to be deleted on class destruction void takeover() throw (FileException); /// Write the specified pid in the file, and set the file to be deleted on class destruction void takeover(pid_t pid) throw (FileException); /// Delete the pidfile void remove() throw (FileException); }; // vim:set ts=4 sw=4: #endif launchtool-0.8/src/common/stringf.cc0000644000175000017500000000154010764703533014524 00000000000000#define _GNU_SOURCE #include "stringf.h" #include #include #include int stringf::addf(std::string& str, const char* fmt, ...) throw() ATTR_PRINTF(2, 3) { char *buf; va_list ap; va_start(ap, fmt); int res = vasprintf(&buf, fmt, ap); va_end(ap); str += buf; free(buf); return res; } std::string stringf::fmt(const char* fmt, ...) throw() ATTR_PRINTF(1, 2) { char *buf; va_list ap; va_start(ap, fmt); vasprintf(&buf, fmt, ap); va_end(ap); std::string res(buf); free(buf); return res; } std::string stringf::fmt(int val) throw() { return fmt("%i", val); } std::string stringf::fmt(unsigned int val) throw() { return fmt("%u", val); } std::string stringf::fmt(long int val) throw() { return fmt("%li", val); } std::string stringf::fmt(long unsigned int val) throw() { return fmt("%lu", val); } // vim:set ts=4 sw=4: launchtool-0.8/src/common/Regex.h0000644000175000017500000000151407617540724013771 00000000000000#ifndef REGEXEXCEPTION_H #define REGEXEXCEPTION_H #include #include #include ////// RegexException class RegexException : public SystemException { protected: std::string _message; public: RegexException(const regex_t& re, int code, const std::string& context) throw (); ~RegexException() throw () {} virtual const char* type() const throw () { return "RegexException"; } virtual std::string desc() const throw () { return _message + " " + _context; } }; class Regex { protected: regex_t re; public: Regex(const char* expr, int flags = 0) throw(RegexException); ~Regex() { regfree(&re); } bool match(const char* str, int flags = 0) throw(RegexException); bool match(const char* str, int nmatch, regmatch_t pmatch[], int flags = 0) throw(RegexException); }; // vim:set ts=4 sw=4: #endif launchtool-0.8/src/common/Pidfile.cc0000644000175000017500000000403207617540723014426 00000000000000#define _GNU_SOURCE #include "Pidfile.h" #ifdef HAVE_CONFIG_H #include #endif #include #include // pid_t, getpid, kill #include // kill #include // access, getpid, unlink #include // errno #include // free using namespace std; using namespace stringf; /* # Create missing directories for my $d ('cfgdir', 'bindir', 'piddir') { if (! -d $cfg{$d}) { my @parts = split('/', $cfg{$d}); for (my $i = 1; $i < @parts; $i++) { my $dir = join('/', @parts[0..$i]); if (! -d $dir) { mkdir $dir, 0755 or die "Could not create directory $dir"; print STDERR "Created dir ", join('/', @parts[0..$i]), "\n"; } } } } */ Pidfile::Pidfile(const string& tag, const string& dir) : delete_on_exit(false) { if (dir.size()) name = dir + "/" + tag + ".pid"; else name = PID_DIR "/" + tag + ".pid"; } Pidfile::~Pidfile() { if (delete_on_exit) remove(); } pid_t Pidfile::read() throw (FileException) { pid_t res; FILE* in = fopen(name.c_str(), "r"); if (!in) return 0; if (fscanf(in, "%d", &res) != 1) return 0; fclose(in); return res; } bool Pidfile::kill(int sig) throw (SystemException) { if (!is_active()) return false; pid_t pid = read(); if (::kill(pid, sig) == -1) throw SystemException(errno, "Killing process " + fmt(pid)); return true; } bool Pidfile::is_active() throw (FileException) { pid_t pid = read(); if (!pid) return false; char pname[15]; snprintf(pname, 15, "/proc/%d", pid); return access(pname, F_OK) == 0; } void Pidfile::takeover() throw (FileException) { takeover(getpid()); } void Pidfile::takeover(pid_t pid) throw (FileException) { FILE* out = fopen(name.c_str(), "w"); if (!out) throw FileException(errno, "opening " + name + " for write, truncating"); fprintf(out, "%i\n", pid); fclose(out); delete_on_exit = true; } void Pidfile::remove() throw (FileException) { if (unlink(name.c_str()) == -1) throw FileException(errno, "deleting file " + name); delete_on_exit = false; } // vim:set ts=4 sw=4: launchtool-0.8/src/common/stringf.h0000644000175000017500000000153407617540724014375 00000000000000#ifndef STRINGF_H #define STRINGF_H #include #ifndef ATTR_PRINTF #ifdef GCC #define ATTR_PRINTF(string, first) __attribute__((format (printf, string, first))) #else #define ATTR_PRINTF(string, first) #endif #endif namespace stringf { /// Format the printf-style arguments and add the result to `str' int addf(std::string& str, const char* fmt, ...) throw() ATTR_PRINTF(2, 3); /// Format the printf-style arguments and return the result as a string std::string fmt(const char* fmt, ...) throw() ATTR_PRINTF(1, 2); std::string fmt(int val) throw (); std::string fmt(unsigned int val) throw (); std::string fmt(long int val) throw (); std::string fmt(long unsigned int val) throw (); }; /// Pass a string to a printf-like function for a %.*s argument #define PFSTR(str) (int)(str).size(), (str).data() // vim:set ts=4 sw=4: #endif launchtool-0.8/src/common/Makefile.in0000644000175000017500000003120311225104354014572 00000000000000# Makefile.in generated by automake 1.10.2 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. # This Makefile.in is free software; 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#ifdef HAVE_EXECINFO_H void DefaultUnexpected() { try { const int trace_size = 50; void *addrs[trace_size]; size_t size = backtrace (addrs, trace_size); char **strings = backtrace_symbols (addrs, size); fprintf(stderr, "Caught unexpected exception, %zd stack frames unwound:\n", size); for (size_t i = 0; i < size; i++) fprintf (stderr, " %s\n", strings[i]); free (strings); throw; } catch (Exception& e) { fprintf(stderr, "Exception was: %s: %.*s.\n", e.type(), PFSTR(e.desc())); throw; } catch (exception& e) { fprintf(stderr, "Exception was: %s: %s\n", typeid(e).name(), e.what()); throw; } catch (...) { fprintf(stderr, "Exception was: unknown object\n"); throw; } } #else void DefaultUnexpected() { try { fprintf(stderr, "Caught unexpected exception\n"); throw; } catch (Exception& e) { fprintf(stderr, "Exception was: %s: %.*s.\n", e.type(), PFSTR(e.desc())); throw; } catch (exception& e) { fprintf(stderr, "Exception was: %s: %s\n", typeid(e).name(), e.what()); throw; } catch (...) { fprintf(stderr, "Exception was: unknown object\n"); throw; } } #endif InstallUnexpected::InstallUnexpected(void (*func)()) { old = set_unexpected(func); } InstallUnexpected::~InstallUnexpected() { set_unexpected(old); } ///// SystemException string SystemException::system_desc() const throw () { const int buf_size = 100; char* buf = new char[buf_size]; string res(strerror_r(_code, buf, buf_size)); delete buf; return res; } // vim:set ts=4 sw=4: launchtool-0.8/src/common/Exec.cc0000644000175000017500000000337407620755244013746 00000000000000/* * Copyright (C) 2002 Enrico Zini * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "Exec.h" #include // execve #include // malloc, free, realloc #include // strndup #include using namespace stringf; using namespace std; ///// Exec::strlist void Exec::strlist::expand() throw () { size *= 2; ptr = (char**) realloc(ptr, size * sizeof(char*)); } Exec::strlist::strlist(int start_size) throw () : cur(0), size(start_size) { ptr = (char**) malloc(size * sizeof(char*)); } Exec::strlist::~strlist() throw () { for (int i = 0; i < cur; i++) if (ptr[i]) free(ptr[i]); free(ptr); } void Exec::strlist::add(const char* str) throw () { if (cur >= size) expand(); ptr[cur++] = strdup(str); } void Exec::strlist::add(const string& str) throw () { if (cur >= size) expand(); ptr[cur++] = strndup(str.data(), str.size()); } void Exec::exec() throw (SystemException) { execve(program.c_str(), argv.get(), env.get()); throw SystemException(errno, "Executing " + program); } // vim:set ts=4 sw=4: launchtool-0.8/src/common/ChildProcess.cc0000644000175000017500000005036310764703633015442 00000000000000#include "ChildProcess.h" #include #include // fork, waitpid, kill, open, getpw*, getgr*, initgroups #include // open #include // getrlimit, setrlimit #include // fork, dup2, pipe, close, setsid, _exit, chdir #include // open #include // waitpid #include // kill #include // flockfile, funlockfile #include // is* #include // getpw* #include // getgr*, initgroups #include #include // malloc, free, realloc #undef LOGTAG #define LOGTAG "ChildProcess" using namespace std; using namespace stringf; void Process::detachFromTTY() throw (SystemException) { int devnull = open("/dev/null", O_RDWR); if (devnull == -1) throw FileException(errno, "opening /dev/null for read and write access"); if (dup2(devnull, 0) == -1) throw SystemException(errno, "redirecting stdin to /dev/null"); if (dup2(devnull, 1) == -1) throw SystemException(errno, "redirecting stdout to /dev/null"); if (setsid() == -1) throw SystemException(errno, "trying to become session leader"); if (dup2(devnull, 2) == -1) throw SystemException(errno, "redirecting stderr to /dev/null"); close(devnull); } string Process::formatStatus(int status) throw () { string b_status; bool exited_normally = WIFEXITED(status); int exit_code = exited_normally ? WEXITSTATUS(status) : -1; bool dumped_core = status & 128; bool signaled = WIFSIGNALED(status); int signal = signaled ? WTERMSIG(status) : 0; if (exited_normally) if (exit_code == 0) b_status += "terminated successfully"; else addf(b_status, "exited with code %d", exit_code); else { b_status += "was interrupted"; addf(b_status, ", killed by signal %d", signal); if (dumped_core) b_status += " (core dumped)"; } return b_status; } void Process::chdir(const string& dir) throw (SystemException) { if (::chdir(dir.c_str()) == -1) throw SystemException(errno, "changing working directory to " + dir); } void Process::chroot(const string& dir) throw (SystemException) { if (::chroot(dir.c_str()) == -1) throw SystemException(errno, "changing root directory to " + dir); } mode_t Process::umask(mode_t mask) throw () { return ::umask(mask); } static struct passwd* getUserInfo(const string& user) { if (isdigit(user[0])) return getpwuid(atoi(user.c_str())); else return getpwnam(user.c_str()); } static struct group* getGroupInfo(const string& group) { if (isdigit(group[0])) return getgrgid(atoi(group.c_str())); else return getgrnam(group.c_str()); } static void initGroups(const string& name, gid_t gid) throw (SystemException) { if (::initgroups(name.c_str(), gid) == -1) throw SystemException(errno, "initializing group access list for user " + name + " with additional group " + fmt(gid)); } static void set_perms(const string& user, uid_t uid, const string& group, gid_t gid) throw (SystemException) { initGroups(user, gid); if (setgid(gid) == -1) throw SystemException(errno, "setting group id to " + fmt(gid) + " (" + group + ")"); if (setegid(gid) == -1) throw SystemException(errno, "setting effective group id to " + fmt(gid) + " (" + group + ")"); if (setuid(uid) == -1) throw SystemException(errno, "setting user id to " + fmt(uid) + " (" + user + ")"); if (seteuid(uid) == -1) throw SystemException(errno, "setting effective user id to " + fmt(uid) + " (" + user + ")"); } void Process::setPerms(const string& user) throw (ConsistencyCheckException, SystemException) { struct passwd* pw = getUserInfo(user); if (!pw) throw ConsistencyCheckException("User " + user + " does not exist on this system"); struct group* gr = getgrgid(pw->pw_gid); if (!gr) throw ConsistencyCheckException("Group " + fmt(pw->pw_gid) + " (primary group of user " + user + ") does not exist on this system"); ::set_perms(user, pw->pw_uid, gr->gr_name, gr->gr_gid); } void Process::setPerms(const string& user, const string& group) throw (ConsistencyCheckException, SystemException) { struct passwd* pw = getUserInfo(user); if (!pw) throw ConsistencyCheckException("User " + user + " does not exist on this system"); struct group* gr = getGroupInfo(group); if (!gr) throw ConsistencyCheckException("Group " + group + " does not exist on this system"); ::set_perms(user, pw->pw_uid, group, gr->gr_gid); } void Process::setPerms(uid_t user) throw (ConsistencyCheckException, SystemException) { struct passwd* pw = getpwuid(user); if (!pw) throw ConsistencyCheckException("User " + fmt(user) + " does not exist on this system"); struct group* gr = getgrgid(pw->pw_gid); if (!gr) throw ConsistencyCheckException("Group " + fmt(pw->pw_gid) + " (primary group of user " + fmt(user) + ") does not exist on this system"); ::set_perms(pw->pw_name, pw->pw_uid, gr->gr_name, gr->gr_gid); } void Process::setPerms(uid_t user, gid_t group) throw (ConsistencyCheckException, SystemException) { struct passwd* pw = getpwuid(user); if (!pw) throw ConsistencyCheckException("User " + fmt(user) + " does not exist on this system"); struct group* gr = getgrgid(group); if (!gr) throw ConsistencyCheckException("Group " + fmt(group) + " does not exist on this system"); ::set_perms(pw->pw_name, pw->pw_uid, gr->gr_name, gr->gr_gid); } static string describe_rlimit_res_t(__rlimit_resource_t rlim) { switch (rlim) { case RLIMIT_CPU: return "CPU time in seconds"; case RLIMIT_FSIZE: return "Maximum filesize"; case RLIMIT_DATA: return "max data size"; case RLIMIT_STACK: return "max stack size"; case RLIMIT_CORE: return "max core file size"; case RLIMIT_RSS: return "max resident set size"; case RLIMIT_NPROC: return "max number of processes"; case RLIMIT_NOFILE: return "max number of open files"; case RLIMIT_MEMLOCK: return "max locked-in-memory address spac"; case RLIMIT_AS: return "address space (virtual memory) limit"; default: return "unknown"; } } static void setLimit(__rlimit_resource_t rlim, int val) throw (SystemException) { struct rlimit lim; if (getrlimit(rlim, &lim) == -1) throw SystemException(errno, "Getting " + describe_rlimit_res_t(rlim) + " limit"); lim.rlim_cur = val; if (setrlimit(rlim, &lim) == -1) throw SystemException(errno, "Setting " + describe_rlimit_res_t(rlim) + " limit to " + fmt(val)); } static int getLimit(__rlimit_resource_t rlim, int* max = 0) throw (SystemException) { struct rlimit lim; if (getrlimit(rlim, &lim) == -1) throw SystemException(errno, "Getting " + describe_rlimit_res_t(rlim) + " limit"); if (max) *max = lim.rlim_max; return lim.rlim_cur; } int Process::getCPUTimeLimit(int* max) throw (SystemException) { return getLimit(RLIMIT_CPU, max); } int Process::getFileSizeLimit(int* max) throw (SystemException) { return getLimit(RLIMIT_FSIZE, max); } int Process::getDataMemoryLimit(int* max) throw (SystemException) { return getLimit(RLIMIT_DATA, max); } int Process::getCoreSizeLimit(int* max) throw (SystemException) { return getLimit(RLIMIT_CORE, max); } int Process::getChildrenLimit(int* max) throw (SystemException) { return getLimit(RLIMIT_NPROC, max); } int Process::getOpenFilesLimit(int* max) throw (SystemException) { return getLimit(RLIMIT_NOFILE, max); } void Process::setCPUTimeLimit(int value) throw (SystemException) { setLimit(RLIMIT_CPU, value); } void Process::setFileSizeLimit(int value) throw (SystemException) { setLimit(RLIMIT_FSIZE, value); } void Process::setDataMemoryLimit(int value) throw (SystemException) { setLimit(RLIMIT_DATA, value); } void Process::setCoreSizeLimit(int value) throw (SystemException) { setLimit(RLIMIT_CORE, value); } void Process::setChildrenLimit(int value) throw (SystemException) { setLimit(RLIMIT_NPROC, value); } void Process::setOpenFilesLimit(int value) throw (SystemException) { setLimit(RLIMIT_NOFILE, value); } pid_t ChildProcess::fork(int* stdinfd, int* stdoutfd, int* stderrfd) throw (SystemException) { int pipes[3][2]; if (stdinfd) { if (pipe(pipes[0]) == -1) throw SystemException(errno, "trying to create the pipe to connect to child standard input"); *stdinfd = pipes[0][1]; } if (stdoutfd) { if (pipe(pipes[1]) == -1) throw SystemException(errno, "trying to create the pipe to connect to child standard output"); *stdoutfd = pipes[1][0]; if (stderrfd == stdoutfd) *stderrfd = pipes[1][0]; } if (stderrfd && stderrfd != stdoutfd) { if (pipe(pipes[2]) == -1) throw SystemException(errno, "trying to create the pipe to connect to child standard error"); *stderrfd = pipes[2][0]; } flockfile(stdin); flockfile(stdout); flockfile(stderr); pid_t pid; if ((pid = ::fork()) == 0) { // Tell the logging system we're in a new process Log::Logger::instance()->setupForkedChild(); // Child process try { if (stdinfd) { // Redirect input from the parent to stdin if (close(pipes[0][1]) == -1) throw SystemException(errno, "closing write end of parent stdin pipe"); if (dup2(pipes[0][0], 0) == -1) throw SystemException(errno, "dup2-ing parent stdin pipe to stdin"); if (close(pipes[0][0]) == -1) throw SystemException(errno, "closing original read end of parent stdin pipe"); } if (stdoutfd) { // Redirect output to the parent stdout fd if (close(pipes[1][0]) == -1) throw SystemException(errno, "closing read end of parent stdout pipe"); if (dup2(pipes[1][1], 1) == -1) throw SystemException(errno, "dup2-ing stdout to parent stdout pipe"); if (stderrfd == stdoutfd) if (dup2(pipes[1][1], 2) == -1) throw SystemException(errno, "dup2-ing stderr to parent stdout/stderr pipe"); if (close(pipes[1][1]) == -1) throw SystemException(errno, "closing original write end of parent stdout pipe"); } if (stderrfd && stderrfd != stdoutfd) { // Redirect all output to the parent if (close(pipes[2][0]) == -1) throw SystemException(errno, "closing read end of parent stderr pipe"); if (dup2(pipes[2][1], 2) == -1) throw SystemException(errno, "dup2-ing stderr to parent stderr pipe"); if (close(pipes[2][1]) == -1) throw SystemException(errno, "closing original write end of parent stderr pipe"); } // Call the process main function int res = _proc->main(); // Allow the child to do its cleanup delete _proc; // Return the exit status _exit(res); } catch (Exception& e) { log_err(string(e.type()) + ": " + e.desc()); } _exit(EXIT_FAILURE); } else if (pid < 0) { funlockfile(stdin); funlockfile(stderr); funlockfile(stdout); if (stdinfd) { close(pipes[0][0]); close(pipes[0][1]); } if (stdoutfd) { close(pipes[1][0]); close(pipes[1][1]); } if (stderrfd && stderrfd != stdoutfd) { close(pipes[2][0]); close(pipes[2][1]); } throw SystemException(errno, "trying to fork the child process to run action script"); } else { funlockfile(stdin); funlockfile(stderr); funlockfile(stdout); // Parent process _pid = pid; try { if (stdinfd) if (close(pipes[0][0]) == -1) throw SystemException(errno, "closing read end of stdin child pipe"); if (stdoutfd) if (close(pipes[1][1]) == -1) throw SystemException(errno, "closing write end of stdout child pipe"); if (stderrfd && stderrfd != stdoutfd) if (close(pipes[2][1]) == -1) throw SystemException(errno, "closing write end of stderr child pipe"); return pid; } catch (SystemException& e) { // Try to kill the child process if any errors occurs here ::kill(pid, 15); throw e; } } } int ChildProcess::wait() throw (SystemException, InterruptedException) { if (_pid == -1) { log_debug("Child already finished"); return -1; // FIXME: for lack of better ideas } int status; if (waitpid(_pid, &status, 0) == -1) if (errno == EINTR) throw InterruptedException("waiting for child termination"); else throw SystemException(errno, "waiting for child termination"); _pid = -1; return status; } int ChildProcess::wait(struct rusage* ru) throw (SystemException, InterruptedException) { if (_pid == -1) { log_debug("Child already finished"); return -1; // FIXME: for lack of better ideas } int status; if (wait4(_pid, &status, 0, ru) == -1) if (errno == EINTR) throw InterruptedException("waiting for child termination"); else throw SystemException(errno, "waiting for child termination"); _pid = -1; return status; } #if 0 #define _GNU_SOURCE #include "runner.h" #include // fork, waitpid, kill, getpid, open #include // open #include // fork, dup2, execve, pipe, close, read, getpid #include // open #include // waitpid #include // kill #include // malloc, free, realloc #include // strndup #include // asprintf #include // is* #include #include #include "userdb.h" #undef LOGTAG #define LOGTAG "runner" using namespace stringf; extern char **environ; ///// RunnerException RunnerException::RunnerException(const string& context) throw () : ContextException(context) { pid = getpid(); } string RunnerException::desc() const throw () { return _context + " in process " + fmt(pid); } ///// ChildProcess static void set_perms(const char* user, uid_t uid, const char* group, gid_t gid) { if (geteuid() == 0) { userdb.initgroups(user, gid); if (setgid(gid) == -1) throw SystemException(errno, fmt("setting group id to %d (%s)", gid, group)); if (setegid(gid) == -1) throw SystemException(errno, fmt("setting effective group id to %d (%s)", gid, group)); if (setuid(uid) == -1) throw SystemException(errno, fmt("setting user id to %d (%s)", uid, user)); if (seteuid(uid) == -1) throw SystemException(errno, fmt("setting effective user id to %d (%s)", uid, user)); } else throw RunnerException("missing the necessary privileges to change permissions"); } void ChildProcess::set_perms(const char* usr) { string user; string group; uid_t uid = (uid_t)-1; gid_t gid = (gid_t)-1; try { if (isdigit(usr[0])) { uid = atoi(usr); user = userdb.user_name(uid); } else { uid = userdb.user_id(usr); user = usr; } gid = userdb.user_group(uid); string group = userdb.group_name(gid); } catch (UIDNotFoundException& e) { throw RunnerException(fmt("user `%s' not found on system", usr)); } catch (UserNotFoundException& e) { throw RunnerException(fmt("user `%s' not found on system", usr)); } catch (GIDNotFoundException& e) { throw RunnerException(fmt("group `%d' (default group for user" " %d (%s)) not found on system", gid, uid, usr)); } ::set_perms(user.c_str(), uid, group.c_str(), gid); } void ChildProcess::set_perms(const char* usr, const char* grp) { string user; string group; uid_t uid; gid_t gid; try { if (isdigit(usr[0])) { uid = atoi(usr); user = userdb.user_name(uid); } else { uid = userdb.user_id(usr); user = usr; } if (isdigit(grp[0])) { gid = atoi(grp); group = userdb.group_name(gid); } else { gid = userdb.group_id(grp); group = grp; } } catch (UIDNotFoundException& e) { throw RunnerException(fmt("user `%s' not found on system", usr)); } catch (UserNotFoundException& e) { throw RunnerException(fmt("user `%s' not found on system", usr)); } catch (GIDNotFoundException& e) { throw RunnerException(fmt("group `%s' not found on system", grp)); } catch (GroupNotFoundException& e) { throw RunnerException(fmt("group `%s' not found on system", grp)); } ::set_perms(user.c_str(), uid, group.c_str(), gid); } pid_t ChildProcess::run() { int pstdin[2]; int poutput[2]; if (_opt_want_child_stdin) if (pipe(pstdin) == -1) throw SystemException(errno, "trying to create the pipe to connect to child standard input"); if (_opt_want_child_output) if (pipe(poutput) == -1) throw SystemException(errno, "trying to create the pipe to read the script output"); flockfile(stdout); flockfile(stderr); fflush(stdout); fflush(stderr); UserDBLock udblock(userdb); if ((pid = fork()) == 0) { // Child process try { udblock.reset(); Logger::configure(*this); set_permissions(); if (_opt_want_child_stdin) { // Redirect input from the parent to stdin if (close(pstdin[1]) == -1) throw SystemException(errno, "closing write end of parent pipe"); if (dup2(pstdin[0], 0) == -1) throw SystemException(errno, "dup2-ing parent pipe to stdin"); } if (_opt_want_child_output) { // Redirect all output to the parent if (close(poutput[0]) == -1) throw SystemException(errno, "closing read end of parent pipe"); if (dup2(poutput[1], 1) == -1) throw SystemException(errno, "dup2-ing stdout to parent pipe"); if (dup2(poutput[1], 2) == -1) throw SystemException(errno, "dup2-ing stderr to parent pipe"); } _exit(main()); } catch (Exception& e) { log_err(string(e.type()) + ": " + e.desc()); } _exit(EXIT_FAILURE); } else if (pid < 0) { funlockfile(stderr); funlockfile(stdout); throw SystemException(errno, "trying to fork the child process to run action script"); } else { funlockfile(stderr); funlockfile(stdout); // Parent process try { if (_opt_want_child_stdin) { if (close(pstdin[0]) == -1) throw SystemException(errno, "closing read end of stdin child pipe"); child_stdin = pstdin[1]; } if (_opt_want_child_output) { if (close(poutput[1]) == -1) throw SystemException(errno, "closing write end of output child pipe"); child_output = poutput[0]; } return pid; } catch (Exception& e) { // Try to kill the child process if any errors occurr here ::kill(pid, 15); throw e; } } } // Read the child output vector ChildProcess::read_output(int max_output_size = 0) { if (pid == 0) throw RunnerException("read_output was called but the child was not started"); if (!_opt_want_child_output) return vector(); // Get the child output // Don't read more than about 64Kb of output, to avoid // filling up memory with scripts that write too much vector output; FILE* in = fdopen(child_output, "r"); if (!in) throw SystemException(errno, "calling fdopen on child output file descriptor"); string line; int byte_count = 0; int c; while ((c = getc(in)) != EOF) if (max_output_size == 0 || byte_count < max_output_size) { byte_count++; if (c != '\n') line += c; else { output.push_back(line); line = ""; } } else if (max_output_size != 0 && byte_count == max_output_size) { output.push_back("Output too long: truncated here."); byte_count++; } if (fclose(in) == EOF) throw SystemException(errno, "closing read end of output child pipe"); return output; } // Wait for child termination int ChildProcess::wait() { if (pid == 0) throw RunnerException("wait was called but the child was not started"); int status; if (waitpid(pid, &status, 0) == -1) throw SystemException(errno, "waiting for child termination"); pid = 0; return status; } void ChildProcess::kill(int sig) { if (pid == 0) throw RunnerException("kill was called but the child was not started"); if (::kill(pid, sig) == -1) throw SystemException(errno, fmt("killing process %d with signal %d", pid, sig)); } ///// ExecChildProcess::strlist void ExecChildProcess::strlist::expand() { size *= 2; ptr = (char**) realloc(ptr, size * sizeof(char*)); } ExecChildProcess::strlist::strlist(int start_size) : cur(0), size(start_size) { ptr = (char**) malloc(size * sizeof(char*)); } ExecChildProcess::strlist::~strlist() { for (int i = 0; i < cur; i++) if (ptr[i]) free(ptr[i]); free(ptr); } void ExecChildProcess::strlist::addf(const char* fmt, ...) ATTR_PRINTF(1, 2) { if (cur >= size) expand(); va_list ap; va_start(ap, fmt); vasprintf(&ptr[cur++], fmt, ap); va_end(ap); } void ExecChildProcess::strlist::add(const char* str) { if (cur >= size) expand(); ptr[cur++] = strdup(str); } void ExecChildProcess::strlist::add(const string& str) { if (cur >= size) expand(); ptr[cur++] = strndup(str.data(), str.size()); } ///// ExecChildProcess void ExecChildProcess::copy_environ(strlist& env) { for (int i = 0; environ[i]; i++) env.add(environ[i]); } int ExecChildProcess::main() { strlist argv; build_argv(argv); strlist env; build_env(env); // Execute the command if (execve(argv0(), argv.get(), env.get()) == -1) throw SystemException(errno, string("Executing ") + argv0()); return EXIT_FAILURE; } #endif // vim:set ts=4 sw=4: launchtool-0.8/src/common/LoggerMethods.h0000644000175000017500000000213207617540723015456 00000000000000#ifndef LOGGERMETHODS_H #define LOGGERMETHODS_H #include #include namespace Log { class NullMethod : public Method { public: virtual void output(LogLevel level, const char* tag, const char* func, const std::string& msg) throw () {} }; class FileMethod : public Method { protected: void* out; std::string fname; public: FileMethod(const std::string& file) throw (FileException); virtual ~FileMethod() throw (); virtual void output(LogLevel level, const char* tag, const char* func, const std::string& msg) throw (); }; class StderrMethod : public Method { public: virtual void output(LogLevel level, const char* tag, const char* func, const std::string& msg) throw (); }; class SyslogMethod : public Method { protected: std::string ident; int facility; public: SyslogMethod(const std::string& ident, int facility = LOG_DAEMON) throw (); virtual ~SyslogMethod() throw (); virtual void output(LogLevel level, const char* tag, const char* func, const std::string& msg) throw (); virtual void setupForkedChild() throw (); }; }; // vim:set ts=4 sw=4: #endif launchtool-0.8/src/common/Exception.h0000644000175000017500000002270407617540723014660 00000000000000#ifndef EXCEPTION_H #define EXCEPTION_H #include #include /*! \file * This file provides the root of the exception hierarchy. The goal of this * hierarchy is to provide the most possible information on what caused the * exception at the least possible cost for the programmer. * * Every exception is the descendent of Exception that, in turn, extends the * std::exception class of the STL. * * Further descendents of Exception add functionality and automatisms to error * message generation: * * - ContextException extends Exception to provide informations on the context * in which the exception was raised * - ConsistencyCheckException extends ContextException to be a base class for * all exception raised on failure of a consistency check; * IndexOutOfRangeException is one example of such exceptions, to be used * when checking that a value (such as an index) fails betweed two given * bounds. * - SystemException extends ContextException to carry informations about * error conditions reported by external services, like the Operating * System, a database interface or an interface used to communicate to some * network server. In particular, it provides the logic needed to make use * of the error descriptions provided by the external services, as * strerror(3) does for the operating system's error conditions. * FileException is an example of such exceptions, to be used to report * error conditions happened during File I/O. * * Example exception raising: * \code * void MyFile::open(const char* fname) throw (FileException) * { * if ((fd = open(fname, O_RDONLY)) == -1) * throw FileException(errno, stringf::fmt("opening %s read-only", fname)); * } * \endcode * * Example exception catching: * \code * try { * myfile.open("/tmp/foo"); * } catch (FileException& e) { * fprintf(stderr, "%.*s: aborting.\n", PFSTR(e.toString())); * exit(1); * } * \endcode */ /// Basic unexpected handler /** * This is an unexpected handler provided by the library. It prints to stderr * a stack trace and all possible available informations about the escaped * exception. * * To have the function names in the stack trace, the executables need to be * linked using the -rdynamic flag. */ void DefaultUnexpected(); /// Install an unexpected handler for the duration of its scope. Install /// DefaultUnexpected if no handler is provided. class InstallUnexpected { protected: void (*old)(); public: InstallUnexpected(void (*func)() = DefaultUnexpected); ~InstallUnexpected(); }; /// Base class for all exceptions /** * This is the base class for all exceptions used in the system. It provides * an interface to get a (hopefully detailed) textual description of the * exception, and a tag describing the type of exception. Further * functionality will be provided by subclassers */ class Exception { public: Exception() throw () {} virtual ~Exception() throw () {} Exception(const Exception& e) throw () {} /// Get a string tag identifying the exception type virtual const char* type() const throw () { return "Exception"; } /// Get a string describing what happened that threw the exception virtual std::string desc() const throw () { return type(); } }; /// Exception with a description of the throwing context class ContextException : public Exception { protected: std::string _context; public: /** Construct the ContextException, providing the context description in * printf syntax. The context should be phrased like "Bad thing A * happened when doing B" */ ContextException(const std::string& context) throw () : _context(context) {}; ~ContextException() throw () {} virtual const char* type() const throw () { return "ContextException"; } virtual std::string desc() const throw () { return _context; } virtual std::string context() const throw () { return _context; } }; /// Exception thrown when some long event is interrupted by an external event /// (like a system call being interrupted by a signal) /** * It is a direct child of ContextException, and has the very same semantics. * * \warning Any function throwing InterruptedException must allow to be called * again with the same parameters to retry the operation */ class InterruptedException : public ContextException { public: InterruptedException(const std::string& context) throw () : ContextException(context) {} virtual const char* type() const throw () { return "InterruptedException"; } }; /// Exception thrown when some system wait is interrupted by a signal /** * It is a direct child of InterruptedException, and has the very same * semantics. * * \warning Any function throwing WaitInterruptedException must allow to be * called again with the same parameters to retry the operation */ class WaitInterruptedException : public InterruptedException { public: WaitInterruptedException(const std::string& context) throw () : InterruptedException(context) {} virtual const char* type() const throw () { return "WaitInterruptedException"; } }; /// Exception thrown when some consistency check fails /** * It is a direct child of ContextException, and has the very same semantics. */ class ConsistencyCheckException : public ContextException { public: ConsistencyCheckException(const std::string& context) throw () : ContextException(context) {} virtual const char* type() const throw () { return "ConsistencyCheckException"; } }; class OutOfRangeException : public ConsistencyCheckException { protected: std::string _var_desc; public: OutOfRangeException(const std::string& context, const std::string& var_desc) throw () : ConsistencyCheckException(context), _var_desc(var_desc) {} ~OutOfRangeException() throw () {} virtual const char* type() const throw () { return "ConsistencyCheckException"; } /// Get a short description of the variable that has been checked virtual std::string var_desc() const throw () { return _var_desc; } virtual std::string desc() const throw () { return _var_desc + " out of range " + _context; } }; /// Exception thrown when index checking fails /** * This exception is to be thrown when an index checking fails, providing * informations on the acceptable index range and on the offending value. * The context should be a description of the index, possibly preceeded by a * description of in what context did the index checking happen. * * Example: * \code * if (age < 18) * throw IndexOutOfRangeException(age, 18, 0, * "obtaining driver license, age"); * * if (i < 0 || i > 100) * throw IndexOutOfRangeException(i, 0, 100, "percentage of items sold"); * \endcode */ template class ValOutOfRangeException : public OutOfRangeException { protected: C _val; C _inf; C _sup; public: /** Construct the exception; minBound and maxBound are the bounds of the * valid index range (inclusive). */ ValOutOfRangeException(const std::string& context, const std::string& var_desc, C val, C inf, C sup) throw () : OutOfRangeException(context, var_desc), _val(val), _inf(inf), _sup(sup) {} ///@name Methods used to get informations about the index and its bounds //@{ /// Get the value that caused the index to go out-of-bounds virtual C val() const throw () { return _val; } /// Get the minimum allowed value for this index virtual C inf() const throw () { return _inf; } /// Get the maximum allowed value for this index virtual C sup() const throw () { return _sup; } //@} virtual const char* type() const throw () { return "ValOutOfRangeException<>"; } virtual std::string desc() const throw () { return _var_desc + "(" + stringf::fmt(_val) + ") out of range (" + stringf::fmt(_inf) + "-" + stringf::fmt(_sup) + ") " + _context; } }; /// Base class for system exceptions /** * This is the base class for exceptions that depend on system events, like * exceptions on file or network I/O, on database access and so on. * SystemExceptions introduces the keeping of an error code with an associated * string description, and by defaults provides the textual description for * Unix errno error codes. * The exception context should be phrased like "doing X". * * Example: * \code * const char* fname = "foo.bar"; * if ((fd = open(fname, O_RDONLY)) == -1) * // Should not throw SystemException, but a more specialized derived * // class like FileException * throw SystemException(errno, stringf::fmt("opening %s read-only", fname)); * \endcode */ class SystemException : public ContextException { protected: int _code; public: SystemException(int code, const std::string& context) throw () : ContextException(context), _code(code) {} virtual const char* type() const throw () { return "SystemException"; } /// Get the system error code associated to the exception virtual int code() const throw () { return _code; } /// Get the description of the error code virtual std::string system_desc() const throw (); virtual std::string desc() const throw () { return system_desc() + " " + _context; } }; /// Base class for exceptions for file I/O /** * It is a direct child of SystemException, and has the very same semantics. * Like in SystemException, the error code description provided is a * description for errno values. */ class FileException : public SystemException { public: FileException(int code, const std::string& context) throw () : SystemException(code, context) {} virtual const char* type() const throw () { return "FileException"; } }; // vim:set ts=4 sw=4: #endif launchtool-0.8/missing0000755000175000017500000002557711225104354012066 00000000000000#! /bin/sh # Common stub for a few missing GNU programs while installing. scriptversion=2006-05-10.23 # Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006 # Free Software Foundation, Inc. # Originally by Fran,cois Pinard , 1996. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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Configuration files can be made executable and start with \*(lq#!/usr/bin/launchtool \-C\*(rq, to create daemons using simpler commands. .SH INVOCATION .P \fBlaunchtool\fP executes the command it finds in the commandline, via switches or the configuration file. All non-switch parameters are concatenated to the command, that will be executed using \*(lq/bin/sh \-c\*(rq. .P \fBlaunchtool\fP default mode of execution is to run the command normally and return its exit status. All features are disabled by default and activated using commandline options or values in the configuration file. Commandline options override configuration files. .P \fBlaunchtool\fP sessions are identified by a tag that is used both to mark the command output in logfiles and to identify running sessions to check if they have already been started or send them a signal without specifying the process PID. .SH OPTIONS \fBlaunchtool\fP follows the usual GNU command line syntax, with long options starting with two dashes (`\-'). .TP .B \-?, \-\-help Display a detailed help message with a summary of all options. .TP .B \-\-usage Display a brief usage message. .TP .B \-k, \-\-kill[=signal] Kill a running launchtool with the specified signal (15 by default) and exit. No signal name parsing is (yet) provided, so the signal must be specified by its number. .TP .B \-\-check Check if another launchtool is running, then exit. .TP .B \-\-showcfg Process config files and commandline, show the resulting configuration and exit. .TP .B \-V, \-\-version Print version and exit. .TP .B \-t, \-\-tag=tag, \*(lqtag\*(rq Tag used to identify the session .TP .B \-C, \-\-config=file Read configuration data from \*(lqfile\*(rq. Defaults to /etc/launchtool/.conf .TP .B \-v, \-\-verbose, \*(lqverbose\*(rq Enable verbose output. .TP .B \-\-no\-verbose Disable verbose output. .TP .B \-\-debug, \*(lqdebug\*(rq Enable debug output (includes \-\-verbose output). .TP .B \-\-no\-debug Disable debug output. .TP .B \-c, \-\-command=cmd, \*(lqcommand\*(rq Command to execute. .TP .B \-\-visible\-tag=tag, \*(lqvisible tag\*(rq Tag to use for pidfiles and logfiles instead of \*(lqlaunchtool\-\*(rq. .TP .B \-d, \-\-daemon, \*(lqdaemon\*(rq Fork to background and detach from terminal, becoming a daemon. .TP .B \-n, \-\-no\-daemon Don't become a daemon. .TP .B \-\-pidfile, \*(lqpidfile\*(rq Create a pidfile (default when \-\-daemon is used). .TP .B \-\-no\-pidfile Don't create a pidfile (default when \-\-daemon is not used). .TP .B \-\-piddir=dir, \*(lqpiddir\*(rq Directory where pidfiles are stored (default to /var/run). .TP .B \-\-chroot=dir, \*(lqroot dir\*(rq Chroot to this directory before running the command. .TP .B \-\-chdir=dir, \*(lqstart dir\*(rq Chdir to this directory before running the command (default to '.' or '/' if \-\-daemon is present). .TP .B \-u, \-\-user=user, \*(lquser\*(rq User privileges to run the command with. .TP .B \-g, \-\-group=group, \*(lqgroup\*(rq Group privileges to run the command with. .TP .B \-\-umask=mask, \*(lqumask\*(rq Set this umask before running the command. .TP .B \-L, \-\-infinite\-runs, \*(lqinfinite runs\*(rq Never give up restarting the command if it fails. .TP .B \-\-no\-infinite\-runs Give up restarting the command after a certain number of failures. .TP .B \-\-wait\-times=t1,t2,... , \*(lqwait times\*(rq List of times (in seconds) to wait after a program failure before restarting it. If not specified, failed commands will not be restarted. .TP .B \-\-good\-running\-time=seconds, \*(lqgood running time\*(rq Minimum running time needed to restart for the first wait time. .TP .B \-\-forwarded\-signals=sig1,sig2,... , \*(lqforwarded signals\*(rq List of signals (in name or in number) to be forwarded to the command. .TP .B \-\-blocked\-signals=sig1,sig2,... , \*(lqblocked signals\*(rq List of signals (in name or in number) to be blocked before running the command. .TP .B \-\-limit\-cpu=seconds, \*(lqcpu limit\*(rq CPU time limit for the command (see setrlimit(2)). .TP .B \-\-limit\-file\-size=1024b-blocks, \*(lqfile size limit\*(rq File size limit for the command (see setrlimit(2)). .TP .B \-\-limit\-data\-memory=1024b-blocks, \*(lqdata memory limit\*(rq Data memory size limit for the command (see setrlimit(2)). .TP .B \-\-limit\-process\-count=count, \*(lqprocess count limit\*(rq Process count limit for the command (see setrlimit(2)). .TP .B \-\-limit\-open\-files=count, \*(lqopen files limit\*(rq Open files limit for the command (see setrlimit(2)). .TP .B \-\-limit\-core\-size=1024b-blocks, \*(lqcore size limit\*(rq Core file size limit for the command (see setrlimit(2)). .TP .B \-\-restrict\-environment, \*(lqrestrict environment\*(rq Restrict the child environment. .TP .B \-\-no-restrict\-environment Copy all environment variables to the child environment. .TP .B \-\-allowed\-env\-vars=var1,var2,... , \*(lqallowed env vars\*(rq List of environment variables to be copied to the child when the environment is restricted. .TP .B \-\-log\-launchtool\-output=target, \*(lqlaunchtool output\*(rq Target of the launchtool output (ignore, stdout, stderr, file:filename or syslog:identity,facility,level). .TP .B \-\-log\-launchtool\-errors=target, \*(lqlaunchtool errors\*(rq Target of the launchtool error messages (ignore, stdout, stderr, file:filename or syslog:identity,facility,level). .TP .B \-\-log\-child\-output=target, \*(lqcommand output\*(rq Target of the child output (ignore, stdout, stderr, file:filename or syslog:identity,facility,level). .TP .B \-\-log\-child\-errors=target, \*(lqcommand errors\*(rq Target of the child error messages (ignore, stdout, stderr, file:filename or syslog:identity,facility,level). .TP .B \-\-silent\-restart\-status=value, \*(lqsilent restart status\*(rq Return value used by the child to explicitly request a restart (feature disabled if not specified). .TP .B \-\-silent\-restart\-time=seconds, \*(lqsilent restart time\*(rq Time to wait before restarting the child after an explicit restart request. .TP .B \-\-stats, \*(lqstats\*(rq Produce some statistics when the command terminates (implied by \-\-verbose). .TP .B \-\-no\-stats Do not produce statistics when the command terminates. .SH LOGGING TARGETS Logging targets are specified with a target name and its optional parameters, separated by a colon (\*(lq:\*(rq). .P Possible target configurations are: .TP .B ignore Output is just discarded. .TP .B stdout Output goes to the standard output stream. .TP .B stderr Output goes to the standard error stream. .TP .B file:filename Output goes to the file \*(lqfilename\*(rq. .TP .B syslog:identity,facility,level Output goes to syslog, with the given identity (a string identifying the logger), facility (see syslog(3)) and level (see syslog(3)). .SH CONFIGURATION FILE The configuration file is a sequence of \*(lqkey = value\*(rq lines. Empty lines and lines starting with '#' are ignored. .P The possible keys have been listed in the OPTIONS section next to the corresponding commandline switch. .P Boolean (yes/no) values can take the values \*(lqyes\*(rq, \*(lqno\*(rq, \*(lqtrue\*(rq, \*(lqfalse\*(rq, \*(lq0\*(rq and \*(lq1\*(rq. .SH EXAMPLES .P .nf # Running a command normally launchtool \-t tag 'echo "Hello, world!"' # Run a command restarting it if it fails: launchtool \-t tag \-\-wait\-times=1,1,1,3,3,3,10,10,10 'my_wonderful_server' # Run a command, with restrictions, restarting it if it fails, as a daemon launchtool \-t myserver \-d \-\-user=myserver \-\-chroot=/var/myserver \\ \-\-limit\-process\-count=5 \-\-limit\-open\-files=10 \\ \-\-wait\-times=1,1,1,3,3,3,10,10,10 \\ \-\-infinite\-runs \-\-stats \\ \-\-log\-launchtool\-output=syslog:myserver,LOG_DAEMON,LOG_INFO \\ \-\-log\-launchtool\-errors=syslog:myserver,LOG_DAEMON,LOG_ERR \\ \-\-log\-child\-output=syslog:myserver,LOG_DAEMON,LOG_INFO \\ \-\-log\-child\-errors=syslog:myserver,LOG_DAEMON,LOG_ERR \\ 'my_experimental_server' # Same thing, using a configuration file tag = myserver command = my_wonderful_server daemon = yes stats = yes user = myserver root dir = /var/myserver process count limit = 5 open files limit = 10 wait times = 1,1,1,3,3,3,10,10,10 infinite runs = yes launchtool output = syslog:myserver,LOG_DAEMON,LOG_INFO launchtool errors = syslog:myserver,LOG_DAEMON,LOG_ERR command output = syslog:myserver,LOG_DAEMON,LOG_INFO command errors = syslog:myserver,LOG_DAEMON,LOG_ERR # Transform a shell command in a polling daemon # Make the file /tmp/have_mobile exist only if my cell phone is present in the # IRDA discovery list launchtool \-t celldetect \-d \-\-silent\-restart\-time=5 \-\-silent\-restart\-status=0 \-\-user=nobody \\ "if grep \-q SIEMENS /proc/sys/net/irda/discovery; then touch /tmp/have_mobile; else rm \-f /tmp/have_mobile; fi ; exit 0" # Ceck if the celldetect daemon is running launchtool \-t celldetect \-\-check # Kill the celldetect daemon launched with the command above launchtool \-t celldetect \-k # Same polling daemon, with an executable configuration file #!/usr/bin/launchtool \-C tag = celldetect command = if grep \-q SIEMENS /proc/sys/net/irda/discovery; then touch /tmp/have_mobile; else rm \-f /tmp/have_mobile; fi ; exit 0 daemon = yes user = nobody silent restart time = 5 silent restart status = 0 # Ceck if the celldetect daemon is running, using the executable configuration # file celldetect \-\-check # Kill the celldetect daemon using the executable configuration file celldetect \-k .fi .SH SEE ALSO .BR syslog (3), .BR setrlimit (2). .SH AUTHOR \fBlaunchtool\fP has been written by Enrico Zini . launchtool-0.8/Makefile.in0000644000175000017500000005070111225104354012517 00000000000000# Makefile.in generated by automake 1.10.2 from Makefile.am. # @configure_input@ # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, # 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. # This Makefile.in is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY, to the extent permitted by law; without # even the implied warranty of MERCHANTABILITY or FITNESS FOR A # PARTICULAR PURPOSE. @SET_MAKE@ VPATH = @srcdir@ pkgdatadir = $(datadir)/@PACKAGE@ pkglibdir = $(libdir)/@PACKAGE@ pkgincludedir = $(includedir)/@PACKAGE@ am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd install_sh_DATA = $(install_sh) -c -m 644 install_sh_PROGRAM = $(install_sh) -c install_sh_SCRIPT = $(install_sh) -c INSTALL_HEADER = $(INSTALL_DATA) transform = $(program_transform_name) NORMAL_INSTALL = : PRE_INSTALL = : POST_INSTALL = : NORMAL_UNINSTALL = : PRE_UNINSTALL = : POST_UNINSTALL = : subdir = . 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AC_INIT AC_CONFIG_SRCDIR([configure.ac]) AM_INIT_AUTOMAKE(launchtool, 0.8) AM_CONFIG_HEADER(config.h) dnl Per usare subdirs AC_PROG_MAKE_SET dnl Pick up the Gnome macros. dnl AM_ACLOCAL_INCLUDE(macros) dnl GNOME_INIT AC_ISC_POSIX AC_PROG_CC AC_PROG_CXX AM_PROG_CC_STDC AC_HEADER_STDC AC_PROG_RANLIB dnl GNOME_COMPILE_WARNINGS dnl GNOME_X_CHECKS dnl Add the languages which your application supports here. dnl ALL_LINGUAS="fr da es no it" dnl ALL_LINGUAS="it" dnl ALL_LINGUAS="" dnl AM_GNU_GETTEXT AC_LANG([C++]) dnl Directory containing pidfiles piddir="${localstatedir}/run" AC_SUBST(piddir) dnl Set DOC_DIR in config.h and in Makefile.* docdir='$(prefix)'/share/doc/${PACKAGE} AC_SUBST(docdir) dnl Check for execinfo.h AH_TEMPLATE(HAVE_EXECINFO_H, [Define to 1 if you have the header file.]) AC_CHECK_HEADER([execinfo.h], [AC_DEFINE([HAVE_EXECINFO_H])]) AC_SUBST(HAVE_EXECINFO_H) dnl Look for libpopt AC_CHECK_LIB(popt, poptGetContext) CXXFLAGS="$CXXFLAGS -Wall -DPID_DIR='\"$piddir\"'" AC_CONFIG_FILES([ Makefile src/Makefile src/common/Makefile ]) AC_OUTPUT launchtool-0.8/COPYING0000644000175000017500000004311007617540713011516 00000000000000 GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you". Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change. b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License. c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or collective works based on the Program. In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a volume of a storage or distribution medium does not bring the other work under the scope of this License. 3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following: a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, c) Accompany it with the information you received as to the offer to distribute corresponding source code. (This alternative is allowed only for noncommercial distribution and only if you received the program in object code or executable form with such an offer, in accord with Subsection b above.) The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete source code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to control compilation and installation of the executable. However, as a special exception, the source code distributed need not include anything that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the operating system on which the executable runs, unless that component itself accompanies the executable. If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code. 4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance. 5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it. 6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to this License. 7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues), conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For example, if a patent license would not permit royalty-free redistribution of the Program by all those who receive copies directly or indirectly through you, then the only way you could satisfy both it and this License would be to refrain entirely from distribution of the Program. If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances. It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any such claims; this section has the sole purpose of protecting the integrity of the free software distribution system, which is implemented by public license practices. Many people have made generous contributions to the wide range of software distributed through that system in reliance on consistent application of that system; it is up to the author/donor to decide if he or she is willing to distribute software through any other system and a licensee cannot impose that choice. This section is intended to make thoroughly clear what is believed to be a consequence of the rest of this License. 8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of this License. 9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation. 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Library General Public License instead of this License. launchtool-0.8/AUTHORS0000644000175000017500000000004007617540713011526 00000000000000Enrico Zini launchtool-0.8/mkinstalldirs0000755000175000017500000000664711225104354013272 00000000000000#! /bin/sh # mkinstalldirs --- make directory hierarchy scriptversion=2006-05-11.19 # Original author: Noah Friedman # Created: 1993-05-16 # Public domain. # # This file is maintained in Automake, please report # bugs to or send patches to # . nl=' ' IFS=" "" $nl" errstatus=0 dirmode= usage="\ Usage: mkinstalldirs [-h] [--help] [--version] [-m MODE] DIR ... Create each directory DIR (with mode MODE, if specified), including all leading file name components. 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See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA # 02110-1301, USA. # As a special exception to the GNU General Public License, if you # distribute this file as part of a program that contains a # configuration script generated by Autoconf, you may include it under # the same distribution terms that you use for the rest of that program. # Originally written by Alexandre Oliva . case $1 in '') echo "$0: No command. Try \`$0 --help' for more information." 1>&2 exit 1; ;; -h | --h*) cat <<\EOF Usage: depcomp [--help] [--version] PROGRAM [ARGS] Run PROGRAMS ARGS to compile a file, generating dependencies as side-effects. Environment variables: depmode Dependency tracking mode. source Source file read by `PROGRAMS ARGS'. object Object file output by `PROGRAMS ARGS'. DEPDIR directory where to store dependencies. depfile Dependency file to output. tmpdepfile Temporary file to use when outputing dependencies. libtool Whether libtool is used (yes/no). Report bugs to . EOF exit $? ;; -v | --v*) echo "depcomp $scriptversion" exit $? ;; esac if test -z "$depmode" || test -z "$source" || test -z "$object"; then echo "depcomp: Variables source, object and depmode must be set" 1>&2 exit 1 fi # Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po. depfile=${depfile-`echo "$object" | sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`} tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`} rm -f "$tmpdepfile" # Some modes work just like other modes, but use different flags. We # parameterize here, but still list the modes in the big case below, # to make depend.m4 easier to write. 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"$@" || exit $? # Remove the call to Libtool. if test "$libtool" = yes; then while test $1 != '--mode=compile'; do shift done shift fi # Remove `-o $object'. IFS=" " for arg do case $arg in -o) shift ;; $object) shift ;; *) set fnord "$@" "$arg" shift # fnord shift # $arg ;; esac done test -z "$dashmflag" && dashmflag=-M # Require at least two characters before searching for `:' # in the target name. This is to cope with DOS-style filenames: # a dependency such as `c:/foo/bar' could be seen as target `c' otherwise. "$@" $dashmflag | sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile" rm -f "$depfile" cat < "$tmpdepfile" > "$depfile" tr ' ' ' ' < "$tmpdepfile" | \ ## Some versions of the HPUX 10.20 sed can't process this invocation ## correctly. Breaking it into two sed invocations is a workaround. sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile" rm -f "$tmpdepfile" ;; dashXmstdout) # This case only exists to satisfy depend.m4. 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