sysnews-0.9/ 40755 1750 1750 0 6425210262 11136 5ustar mnb20mnb20sysnews-0.9/Makefile100640 1750 1750 1560 6131351414 12670 0ustar mnb20mnb20# Makefile for news int@link.xs4all.nl # # $Revision: 1.6 $ # VERSION = 0.9 # system news location NEWSDIR =/var/sysnews # file in $HOME which indicates the last time news was read NEWSTIME=.news_time CC = gcc DEFS = -DNEWSDIR=\"$(NEWSDIR)\" -DNEWSTIME=\"$(NEWSTIME)\" -DVERSION=\"$(VERSION)\" CFLAGS = -Wall -O2 LDFLAGS = -s PREFIX = /usr/local OBJECTS = news.o getopt.o %.o: %.c Makefile $(CC) $(CFLAGS) $(DEFS) -c -o $@ $< all: news manpage news: $(OBJECTS) $(CC) $(LDFLAGS) -o $@ $(OBJECTS) manpage: news.man Makefile sed -e s,/var/sysnews,$(NEWSDIR),g\ -e s,.news_time,$(NEWSTIME),g < news.man > news.1 install: all install -o bin -g bin -m 555 news $(PREFIX)/bin install -m 444 news.1 $(PREFIX)/man/man1 release: tar -cvzf news-$(VERSION).tgz \ Makefile README getopt.c getopt.h news.c news.h news.man clean: rm -f news $(OBJECTS) news.1 sysnews-0.9/README100640 1750 1750 5504 6255266515 12130 0ustar mnb20mnb20 This program is used to display system related news to the users at login. it should be placed in the system-wide startup file of the shells available on the system. (/etc/profile for bash/sh, /etc/csh.login for csh/tcsh, /etc/zprofile for zsh, etc..), so its executed every time a user logs in. (i suggest to use `news -n', that way only article titles will be displayed and the user can decide when s/he wants to read it) the system news is kept in a directory /var/sysnews (this can be changed) where each sysnews article is a separate file (with the filename being the sysnews title.) to add a system news article, just edit one with your favorite editor and copy it /var/sysnews read the man-page for more details.. to compile, just type `make' to install type `make install' you have to create the /var/sysnews dir yourself.. Charles. (int@link.xs4all.nl) Latest version can be obtained from http://link.xs4all.nl/~int/software -----CHANGES news-0.4 implemented a news expire function, which will delete news older than a given number of days, for example, you can the following in your crontab: 0 2 * * * news -e 30 this will run the news command every day at 2:00am and delete all articles older than 30 days. you can also specify acticles which may not be deleted, i.e. a 'newusers' article.. this is done by specifying the `-x' flag, followed by a comma separated list of article names, like: 0 2 * * * news -e 30 -x newusers,important,etcetc which will purge all news older than 30 days, excluding newusers, important and etcetc. (thanks to waltje@uwalt.nl.mugnet.org for the idea) -----CHANGES news-0.5 as suggested by: cmiyagis@husc.harvard.edu, i made the following changes: Added -l flag, which will, when used with the -n flag, print one article name per line. Added -d flag, this adds a date stamp when used with the -nl flags. Fixed a pager problem, some pagers don't pause after a short (less then 1 page) file is shown, and just exit. this can cause a short article to be scrolled of the screen, if the next article is longer then a page.. Now all articles are piped through one pager, instead of a new pager for each article. -----CHANGES news-0.8 Added -D flag, which allows you to specify a date format, see strftime(3) for detail on the format. Added -f flag, to read news from a dir other than the default. all article names (one per line, and/or comma separated) read from the file .noexpire in the sysnews directory, will not expire when `news -e #' is executed. added getopt.[ch] to the dist, for systems where its not included in libc. -----CHANGES news-0.9 the $SYSNEWSFLAGS environment variable is checked for options. (thanks to Matt Foster for the idea..) Added long options. sysnews-0.9/getopt.c100640 1750 1750 52403 5667755762 12753 0ustar mnb20mnb20/* Getopt for GNU. NOTE: getopt is now part of the C library, so if you don't know what "Keep this file name-space clean" means, talk to roland@gnu.ai.mit.edu before changing it! Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94 Free Software Foundation, Inc. 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. 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, 675 Mass Ave, Cambridge, MA 02139, USA. */ /* This tells Alpha OSF/1 not to define a getopt prototype in . Ditto for AIX 3.2 and . */ #ifndef _NO_PROTO #define _NO_PROTO #endif #ifdef HAVE_CONFIG_H #include #endif #if !defined (__STDC__) || !__STDC__ /* This is a separate conditional since some stdc systems reject `defined (const)'. */ #ifndef const #define const #endif #endif #include /* Comment out all this code if we are using the GNU C Library, and are not actually compiling the library itself. This code is part of the GNU C Library, but also included in many other GNU distributions. Compiling and linking in this code is a waste when using the GNU C library (especially if it is a shared library). Rather than having every GNU program understand `configure --with-gnu-libc' and omit the object files, it is simpler to just do this in the source for each such file. */ #if defined (_LIBC) || !defined (__GNU_LIBRARY__) /* This needs to come after some library #include to get __GNU_LIBRARY__ defined. */ #ifdef __GNU_LIBRARY__ /* Don't include stdlib.h for non-GNU C libraries because some of them contain conflicting prototypes for getopt. */ #include #endif /* GNU C library. */ /* This version of `getopt' appears to the caller like standard Unix `getopt' but it behaves differently for the user, since it allows the user to intersperse the options with the other arguments. As `getopt' works, it permutes the elements of ARGV so that, when it is done, all the options precede everything else. Thus all application programs are extended to handle flexible argument order. Setting the environment variable POSIXLY_CORRECT disables permutation. Then the behavior is completely standard. GNU application programs can use a third alternative mode in which they can distinguish the relative order of options and other arguments. */ #include "getopt.h" /* For communication from `getopt' to the caller. When `getopt' finds an option that takes an argument, the argument value is returned here. Also, when `ordering' is RETURN_IN_ORDER, each non-option ARGV-element is returned here. */ char *optarg = NULL; /* Index in ARGV of the next element to be scanned. This is used for communication to and from the caller and for communication between successive calls to `getopt'. On entry to `getopt', zero means this is the first call; initialize. When `getopt' returns EOF, this is the index of the first of the non-option elements that the caller should itself scan. Otherwise, `optind' communicates from one call to the next how much of ARGV has been scanned so far. */ /* XXX 1003.2 says this must be 1 before any call. */ int optind = 0; /* The next char to be scanned in the option-element in which the last option character we returned was found. This allows us to pick up the scan where we left off. If this is zero, or a null string, it means resume the scan by advancing to the next ARGV-element. */ static char *nextchar; /* Callers store zero here to inhibit the error message for unrecognized options. */ int opterr = 1; /* Set to an option character which was unrecognized. This must be initialized on some systems to avoid linking in the system's own getopt implementation. */ int optopt = '?'; /* Describe how to deal with options that follow non-option ARGV-elements. If the caller did not specify anything, the default is REQUIRE_ORDER if the environment variable POSIXLY_CORRECT is defined, PERMUTE otherwise. REQUIRE_ORDER means don't recognize them as options; stop option processing when the first non-option is seen. This is what Unix does. This mode of operation is selected by either setting the environment variable POSIXLY_CORRECT, or using `+' as the first character of the list of option characters. PERMUTE is the default. We permute the contents of ARGV as we scan, so that eventually all the non-options are at the end. This allows options to be given in any order, even with programs that were not written to expect this. RETURN_IN_ORDER is an option available to programs that were written to expect options and other ARGV-elements in any order and that care about the ordering of the two. We describe each non-option ARGV-element as if it were the argument of an option with character code 1. Using `-' as the first character of the list of option characters selects this mode of operation. The special argument `--' forces an end of option-scanning regardless of the value of `ordering'. In the case of RETURN_IN_ORDER, only `--' can cause `getopt' to return EOF with `optind' != ARGC. */ static enum { REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER } ordering; /* Value of POSIXLY_CORRECT environment variable. */ static char *posixly_correct; #ifdef __GNU_LIBRARY__ /* We want to avoid inclusion of string.h with non-GNU libraries because there are many ways it can cause trouble. On some systems, it contains special magic macros that don't work in GCC. */ #include #define my_index strchr #else /* Avoid depending on library functions or files whose names are inconsistent. */ char *getenv (); static char * my_index (str, chr) const char *str; int chr; { while (*str) { if (*str == chr) return (char *) str; str++; } return 0; } /* If using GCC, we can safely declare strlen this way. If not using GCC, it is ok not to declare it. */ #ifdef __GNUC__ /* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h. That was relevant to code that was here before. */ #if !defined (__STDC__) || !__STDC__ /* gcc with -traditional declares the built-in strlen to return int, and has done so at least since version 2.4.5. -- rms. */ extern int strlen (const char *); #endif /* not __STDC__ */ #endif /* __GNUC__ */ #endif /* not __GNU_LIBRARY__ */ /* Handle permutation of arguments. */ /* Describe the part of ARGV that contains non-options that have been skipped. `first_nonopt' is the index in ARGV of the first of them; `last_nonopt' is the index after the last of them. */ static int first_nonopt; static int last_nonopt; /* Exchange two adjacent subsequences of ARGV. One subsequence is elements [first_nonopt,last_nonopt) which contains all the non-options that have been skipped so far. The other is elements [last_nonopt,optind), which contains all the options processed since those non-options were skipped. `first_nonopt' and `last_nonopt' are relocated so that they describe the new indices of the non-options in ARGV after they are moved. */ static void exchange (argv) char **argv; { int bottom = first_nonopt; int middle = last_nonopt; int top = optind; char *tem; /* Exchange the shorter segment with the far end of the longer segment. That puts the shorter segment into the right place. It leaves the longer segment in the right place overall, but it consists of two parts that need to be swapped next. */ while (top > middle && middle > bottom) { if (top - middle > middle - bottom) { /* Bottom segment is the short one. */ int len = middle - bottom; register int i; /* Swap it with the top part of the top segment. */ for (i = 0; i < len; i++) { tem = argv[bottom + i]; argv[bottom + i] = argv[top - (middle - bottom) + i]; argv[top - (middle - bottom) + i] = tem; } /* Exclude the moved bottom segment from further swapping. */ top -= len; } else { /* Top segment is the short one. */ int len = top - middle; register int i; /* Swap it with the bottom part of the bottom segment. */ for (i = 0; i < len; i++) { tem = argv[bottom + i]; argv[bottom + i] = argv[middle + i]; argv[middle + i] = tem; } /* Exclude the moved top segment from further swapping. */ bottom += len; } } /* Update records for the slots the non-options now occupy. */ first_nonopt += (optind - last_nonopt); last_nonopt = optind; } /* Initialize the internal data when the first call is made. */ static const char * _getopt_initialize (optstring) const char *optstring; { /* Start processing options with ARGV-element 1 (since ARGV-element 0 is the program name); the sequence of previously skipped non-option ARGV-elements is empty. */ first_nonopt = last_nonopt = optind = 1; nextchar = NULL; posixly_correct = getenv ("POSIXLY_CORRECT"); /* Determine how to handle the ordering of options and nonoptions. */ if (optstring[0] == '-') { ordering = RETURN_IN_ORDER; ++optstring; } else if (optstring[0] == '+') { ordering = REQUIRE_ORDER; ++optstring; } else if (posixly_correct != NULL) ordering = REQUIRE_ORDER; else ordering = PERMUTE; return optstring; } /* Scan elements of ARGV (whose length is ARGC) for option characters given in OPTSTRING. If an element of ARGV starts with '-', and is not exactly "-" or "--", then it is an option element. The characters of this element (aside from the initial '-') are option characters. If `getopt' is called repeatedly, it returns successively each of the option characters from each of the option elements. If `getopt' finds another option character, it returns that character, updating `optind' and `nextchar' so that the next call to `getopt' can resume the scan with the following option character or ARGV-element. If there are no more option characters, `getopt' returns `EOF'. Then `optind' is the index in ARGV of the first ARGV-element that is not an option. (The ARGV-elements have been permuted so that those that are not options now come last.) OPTSTRING is a string containing the legitimate option characters. If an option character is seen that is not listed in OPTSTRING, return '?' after printing an error message. If you set `opterr' to zero, the error message is suppressed but we still return '?'. If a char in OPTSTRING is followed by a colon, that means it wants an arg, so the following text in the same ARGV-element, or the text of the following ARGV-element, is returned in `optarg'. Two colons mean an option that wants an optional arg; if there is text in the current ARGV-element, it is returned in `optarg', otherwise `optarg' is set to zero. If OPTSTRING starts with `-' or `+', it requests different methods of handling the non-option ARGV-elements. See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above. Long-named options begin with `--' instead of `-'. Their names may be abbreviated as long as the abbreviation is unique or is an exact match for some defined option. If they have an argument, it follows the option name in the same ARGV-element, separated from the option name by a `=', or else the in next ARGV-element. When `getopt' finds a long-named option, it returns 0 if that option's `flag' field is nonzero, the value of the option's `val' field if the `flag' field is zero. The elements of ARGV aren't really const, because we permute them. But we pretend they're const in the prototype to be compatible with other systems. LONGOPTS is a vector of `struct option' terminated by an element containing a name which is zero. LONGIND returns the index in LONGOPT of the long-named option found. It is only valid when a long-named option has been found by the most recent call. If LONG_ONLY is nonzero, '-' as well as '--' can introduce long-named options. */ int _getopt_internal (argc, argv, optstring, longopts, longind, long_only) int argc; char *const *argv; const char *optstring; const struct option *longopts; int *longind; int long_only; { optarg = NULL; if (optind == 0) optstring = _getopt_initialize (optstring); if (nextchar == NULL || *nextchar == '\0') { /* Advance to the next ARGV-element. */ if (ordering == PERMUTE) { /* If we have just processed some options following some non-options, exchange them so that the options come first. */ if (first_nonopt != last_nonopt && last_nonopt != optind) exchange ((char **) argv); else if (last_nonopt != optind) first_nonopt = optind; /* Skip any additional non-options and extend the range of non-options previously skipped. */ while (optind < argc && (argv[optind][0] != '-' || argv[optind][1] == '\0')) optind++; last_nonopt = optind; } /* The special ARGV-element `--' means premature end of options. Skip it like a null option, then exchange with previous non-options as if it were an option, then skip everything else like a non-option. */ if (optind != argc && !strcmp (argv[optind], "--")) { optind++; if (first_nonopt != last_nonopt && last_nonopt != optind) exchange ((char **) argv); else if (first_nonopt == last_nonopt) first_nonopt = optind; last_nonopt = argc; optind = argc; } /* If we have done all the ARGV-elements, stop the scan and back over any non-options that we skipped and permuted. */ if (optind == argc) { /* Set the next-arg-index to point at the non-options that we previously skipped, so the caller will digest them. */ if (first_nonopt != last_nonopt) optind = first_nonopt; return EOF; } /* If we have come to a non-option and did not permute it, either stop the scan or describe it to the caller and pass it by. */ if ((argv[optind][0] != '-' || argv[optind][1] == '\0')) { if (ordering == REQUIRE_ORDER) return EOF; optarg = argv[optind++]; return 1; } /* We have found another option-ARGV-element. Skip the initial punctuation. */ nextchar = (argv[optind] + 1 + (longopts != NULL && argv[optind][1] == '-')); } /* Decode the current option-ARGV-element. */ /* Check whether the ARGV-element is a long option. If long_only and the ARGV-element has the form "-f", where f is a valid short option, don't consider it an abbreviated form of a long option that starts with f. Otherwise there would be no way to give the -f short option. On the other hand, if there's a long option "fubar" and the ARGV-element is "-fu", do consider that an abbreviation of the long option, just like "--fu", and not "-f" with arg "u". This distinction seems to be the most useful approach. */ if (longopts != NULL && (argv[optind][1] == '-' || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1]))))) { char *nameend; const struct option *p; const struct option *pfound = NULL; int exact = 0; int ambig = 0; int indfound; int option_index; for (nameend = nextchar; *nameend && *nameend != '='; nameend++) /* Do nothing. */ ; /* Test all long options for either exact match or abbreviated matches. */ for (p = longopts, option_index = 0; p->name; p++, option_index++) if (!strncmp (p->name, nextchar, nameend - nextchar)) { if (nameend - nextchar == strlen (p->name)) { /* Exact match found. */ pfound = p; indfound = option_index; exact = 1; break; } else if (pfound == NULL) { /* First nonexact match found. */ pfound = p; indfound = option_index; } else /* Second or later nonexact match found. */ ambig = 1; } if (ambig && !exact) { if (opterr) fprintf (stderr, "%s: option `%s' is ambiguous\n", argv[0], argv[optind]); nextchar += strlen (nextchar); optind++; return '?'; } if (pfound != NULL) { option_index = indfound; optind++; if (*nameend) { /* Don't test has_arg with >, because some C compilers don't allow it to be used on enums. */ if (pfound->has_arg) optarg = nameend + 1; else { if (opterr) { if (argv[optind - 1][1] == '-') /* --option */ fprintf (stderr, "%s: option `--%s' doesn't allow an argument\n", argv[0], pfound->name); else /* +option or -option */ fprintf (stderr, "%s: option `%c%s' doesn't allow an argument\n", argv[0], argv[optind - 1][0], pfound->name); } nextchar += strlen (nextchar); return '?'; } } else if (pfound->has_arg == 1) { if (optind < argc) optarg = argv[optind++]; else { if (opterr) fprintf (stderr, "%s: option `%s' requires an argument\n", argv[0], argv[optind - 1]); nextchar += strlen (nextchar); return optstring[0] == ':' ? ':' : '?'; } } nextchar += strlen (nextchar); if (longind != NULL) *longind = option_index; if (pfound->flag) { *(pfound->flag) = pfound->val; return 0; } return pfound->val; } /* Can't find it as a long option. If this is not getopt_long_only, or the option starts with '--' or is not a valid short option, then it's an error. Otherwise interpret it as a short option. */ if (!long_only || argv[optind][1] == '-' || my_index (optstring, *nextchar) == NULL) { if (opterr) { if (argv[optind][1] == '-') /* --option */ fprintf (stderr, "%s: unrecognized option `--%s'\n", argv[0], nextchar); else /* +option or -option */ fprintf (stderr, "%s: unrecognized option `%c%s'\n", argv[0], argv[optind][0], nextchar); } nextchar = (char *) ""; optind++; return '?'; } } /* Look at and handle the next short option-character. */ { char c = *nextchar++; char *temp = my_index (optstring, c); /* Increment `optind' when we start to process its last character. */ if (*nextchar == '\0') ++optind; if (temp == NULL || c == ':') { if (opterr) { if (posixly_correct) /* 1003.2 specifies the format of this message. */ fprintf (stderr, "%s: illegal option -- %c\n", argv[0], c); else fprintf (stderr, "%s: invalid option -- %c\n", argv[0], c); } optopt = c; return '?'; } if (temp[1] == ':') { if (temp[2] == ':') { /* This is an option that accepts an argument optionally. */ if (*nextchar != '\0') { optarg = nextchar; optind++; } else optarg = NULL; nextchar = NULL; } else { /* This is an option that requires an argument. */ if (*nextchar != '\0') { optarg = nextchar; /* If we end this ARGV-element by taking the rest as an arg, we must advance to the next element now. */ optind++; } else if (optind == argc) { if (opterr) { /* 1003.2 specifies the format of this message. */ fprintf (stderr, "%s: option requires an argument -- %c\n", argv[0], c); } optopt = c; if (optstring[0] == ':') c = ':'; else c = '?'; } else /* We already incremented `optind' once; increment it again when taking next ARGV-elt as argument. */ optarg = argv[optind++]; nextchar = NULL; } } return c; } } int getopt (argc, argv, optstring) int argc; char *const *argv; const char *optstring; { return _getopt_internal (argc, argv, optstring, (const struct option *) 0, (int *) 0, 0); } #endif /* _LIBC or not __GNU_LIBRARY__. */ #ifdef TEST /* Compile with -DTEST to make an executable for use in testing the above definition of `getopt'. */ int main (argc, argv) int argc; char **argv; { int c; int digit_optind = 0; while (1) { int this_option_optind = optind ? optind : 1; c = getopt (argc, argv, "abc:d:0123456789"); if (c == EOF) break; switch (c) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': if (digit_optind != 0 && digit_optind != this_option_optind) printf ("digits occur in two different argv-elements.\n"); digit_optind = this_option_optind; printf ("option %c\n", c); break; case 'a': printf ("option a\n"); break; case 'b': printf ("option b\n"); break; case 'c': printf ("option c with value `%s'\n", optarg); break; case '?': break; default: printf ("?? getopt returned character code 0%o ??\n", c); } } if (optind < argc) { printf ("non-option ARGV-elements: "); while (optind < argc) printf ("%s ", argv[optind++]); printf ("\n"); } exit (0); } #endif /* TEST */ sysnews-0.9/getopt.h100640 1750 1750 10526 5667755762 12760 0ustar mnb20mnb20/* Declarations for getopt. Copyright (C) 1989, 90, 91, 92, 93, 94 Free Software Foundation, Inc. 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. 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, 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _GETOPT_H #define _GETOPT_H 1 #ifdef __cplusplus extern "C" { #endif /* For communication from `getopt' to the caller. When `getopt' finds an option that takes an argument, the argument value is returned here. Also, when `ordering' is RETURN_IN_ORDER, each non-option ARGV-element is returned here. */ extern char *optarg; /* Index in ARGV of the next element to be scanned. This is used for communication to and from the caller and for communication between successive calls to `getopt'. On entry to `getopt', zero means this is the first call; initialize. When `getopt' returns EOF, this is the index of the first of the non-option elements that the caller should itself scan. Otherwise, `optind' communicates from one call to the next how much of ARGV has been scanned so far. */ extern int optind; /* Callers store zero here to inhibit the error message `getopt' prints for unrecognized options. */ extern int opterr; /* Set to an option character which was unrecognized. */ extern int optopt; /* Describe the long-named options requested by the application. The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector of `struct option' terminated by an element containing a name which is zero. The field `has_arg' is: no_argument (or 0) if the option does not take an argument, required_argument (or 1) if the option requires an argument, optional_argument (or 2) if the option takes an optional argument. If the field `flag' is not NULL, it points to a variable that is set to the value given in the field `val' when the option is found, but left unchanged if the option is not found. To have a long-named option do something other than set an `int' to a compiled-in constant, such as set a value from `optarg', set the option's `flag' field to zero and its `val' field to a nonzero value (the equivalent single-letter option character, if there is one). For long options that have a zero `flag' field, `getopt' returns the contents of the `val' field. */ struct option { #if defined (__STDC__) && __STDC__ const char *name; #else char *name; #endif /* has_arg can't be an enum because some compilers complain about type mismatches in all the code that assumes it is an int. */ int has_arg; int *flag; int val; }; /* Names for the values of the `has_arg' field of `struct option'. */ #define no_argument 0 #define required_argument 1 #define optional_argument 2 #if defined (__STDC__) && __STDC__ #ifdef __GNU_LIBRARY__ /* Many other libraries have conflicting prototypes for getopt, with differences in the consts, in stdlib.h. To avoid compilation errors, only prototype getopt for the GNU C library. */ extern int getopt (int argc, char *const *argv, const char *shortopts); #else /* not __GNU_LIBRARY__ */ extern int getopt (); #endif /* __GNU_LIBRARY__ */ extern int getopt_long (int argc, char *const *argv, const char *shortopts, const struct option *longopts, int *longind); extern int getopt_long_only (int argc, char *const *argv, const char *shortopts, const struct option *longopts, int *longind); /* Internal only. Users should not call this directly. */ extern int _getopt_internal (int argc, char *const *argv, const char *shortopts, const struct option *longopts, int *longind, int long_only); #else /* not __STDC__ */ extern int getopt (); extern int getopt_long (); extern int getopt_long_only (); extern int _getopt_internal (); #endif /* __STDC__ */ #ifdef __cplusplus } #endif #endif /* _GETOPT_H */ sysnews-0.9/news.c100640 1750 1750 26115 6265473677 12423 0ustar mnb20mnb20/* news.c - display system news * * (C) 1993-96 Charles (int@link.xs4all.nl) * * GPL */ /* $Source: /project/master/sysnews/news.c,v $ * $Revision: 1.12 $ * $Date: 1997/01/10 17:09:19 $ */ static char rcsid[] = "$Id: news.c,v 1.12 1997/01/10 17:09:19 int Exp $"; #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "getopt.h" #include "news.h" char *progname; char *newsdir = NEWSDIR; char *dformat = DATEFORMAT; char **exclude_list = 0; int nr_exclude = 0; static struct option long_options[] = { { "all", no_argument, 0, 'a' }, { "datestamp", no_argument, 0, 'd' }, { "datefmt", required_argument, 0, 'D' }, { "expire", required_argument, 0, 'e' }, { "newsdir", required_argument, 0, 'f' }, { "articles", no_argument, 0, 's' }, { "names", no_argument, 0, 'n' }, { "oneperline", no_argument, 0, 'l' }, { "page", no_argument, 0, 'p' }, { "pager", required_argument, 0, 'P' }, { "verbose", no_argument, 0, 'v' }, { "version", no_argument, 0, 'V' }, { "exclude", required_argument, 0, 'x' }, { "help", no_argument, 0, 'h' }, { NULL, 0, 0, 0 }, }; /* * MAIN */ void main(int argc, char **argv) { int ac = 0, n, i; char *av[32], **nav, *env; progname = (char *)argv[0]; f.expire = -1; if((env = getenv("SYSNEWSFLAGS"))) { ac = implode(env, av, 32); nav = (char **)malloc( sizeof(char *) * (ac + argc) ); for(i = n = 0; n < argc; n++) nav[n] = argv[i++]; for(i = 0; n < (argc + ac); n++) nav[n] = av[i++]; } else nav = argv; parse_args(argc + ac, nav); if(f.expire >= 0) do_expire(f.expire); else read_sysnews(argc, argv); exit(0); } int implode(char *str, char *av[], int max) { char c; int ac; for(ac = 0; ac < max; ) { while(isspace(*str)) str++; if(!*str) break; av[ac++] = str; while(*str && !isspace(*str)) str++; c = *str; *str++ = '\0'; if(!c) break; } return ac; } void parse_args(int argc, char **argv) { int ch; while ((ch = getopt_long(argc, argv, "adD:e:f:snlpPvx:h", long_options, 0)) != EOF) switch(ch) { case 'a': /* show all articles */ f.all = 1; break; case 'd': /* show date of article */ f.datestamp = 1; break; case 'D': /* date format */ dformat = optarg; break; case 'e': /* expire articles */ f.expire = atoi(optarg); break; case 'f': /* use alternate newsdir */ newsdir = optarg; break; case 's': /* show # of articles */ f.items = 1; break; case 'n': /* show names of articles */ f.names = 1; break; case 'l': /* show one article per line */ f.oneperline = 1; break; case 'p': /* pipe through $PAGER */ f.page = 1; break; case 'P': f.pager = optarg; f.page = 1; break; case 'v': f.verbose = 1; break; case 'x': add_exclude(optarg); break; case 'V': printf("news version %s\n", VERSION); exit(0); case 'h': /* hm. what could this be? */ print_usage(); exit(0); default: fprintf(stderr, "Type `%s --help' for more information.\n", progname); exit(1); break; } } void read_sysnews(int argc, char **argv) { DIR *dfp; FILE *pfp = 0; struct dirent *dir; struct stat st; struct passwd *pw; time_t news_time = 0; char *home, line[1024]; char tmp[512]; char *newsnames; int art_cnt = 0, avc; int cols = 80; int ret; home = getenv("HOME"); if(!home) { fprintf(stderr, "%s: error: you are homeless!\n", progname); exit(1); } sprintf(line, "%s/%s", home, NEWSTIME); ret = stat(line, &st); if(ret < 0) { if(errno != ENOENT) exit(1); if(!f.all && !f.items && !f.names && !argv[optind]) { ret = creat(line, 0600); close(ret); } } else news_time = st.st_mtime; #ifdef TIOCGWINSZ if(!f.names && !f.oneperline) { struct winsize win; if(ioctl(1, TIOCGWINSZ, &win) != -1) cols = win.ws_col; } #endif newsnames = malloc(cols); newsnames[0] = 0; if(!f.all && !f.items && !f.names && !argv[optind]) { ret = utime(line, 0); if(ret < 0) { fprintf(stderr, "%s: (%s) %s\n", progname, line, ERRMSG); } } dfp = opendir(newsdir); if(!dfp) { fprintf(stderr, "%s: opendir(%s): %s\n", progname, newsdir, ERRMSG); exit(1); } while((dir = readdir(dfp))) { if(dir->d_name[0] == '.') /* skip all names starting with '.' */ continue; if(argv[optind]) { avc = optind; for(avc = optind; avc < argc; avc++) { if(strstr(dir->d_name, argv[avc])) break; } if(!argv[avc]) continue; } sprintf(line, "%s/%s", newsdir, dir->d_name); ret = stat(line, &st); if(ret < 0) { fprintf(stderr, "%s: (%s) %s\n", progname, line, ERRMSG); continue; } if(news_time < st.st_mtime || f.all || argv[optind]) { if(!f.names && !f.items) { if(f.page && (!pfp)) { pfp = open_pager(); if(!pfp) exit(1); } pw = getpwuid(st.st_uid); fprintf(pfp ? pfp : stdout, "\n** %s (%s) %s\n", dir->d_name, pw ? pw->pw_name : "unknown", ctime(&st.st_mtime)); fflush(pfp ? pfp : stdout); if(f.page) more(pfp, line); else cat(line); } if(f.names) { if(f.oneperline) { if(f.datestamp) { strftime(tmp, 512, dformat, gmtime(&st.st_mtime)); printf("NEWS: %s %s\n", tmp, dir->d_name); } else { printf("NEWS: %s\n", dir->d_name); } } else { if((strlen(dir->d_name) + strlen(newsnames) + strlen(progname) + 1 + 2) > cols) { printf("NEWS: %s\n", newsnames); strcpy(newsnames, ""); } strcat(newsnames, dir->d_name); strcat(newsnames, " "); } } art_cnt++; } } if(f.names && art_cnt && newsnames[0]) printf("NEWS: %s\n", newsnames); if(f.items) printf("NEWS: %d news article%s\n", art_cnt, (art_cnt == 1) ? "" : "s"); closedir(dfp); if(pfp) pclose(pfp); exit(art_cnt ? 0 : 2); } /** *** print a file to stdout **/ int cat(char *file) { FILE *fp; fp = fopen(file, "r"); if(!fp) { fprintf(stderr, "%s: (%s) %s\n", progname, file, ERRMSG); return ERR; } fcat(fileno(fp), fileno(stdout)); fclose(fp); return OK; } /** *** pipe a file through $PAGER **/ int more(FILE *pfp, char *file) { FILE *fp; fp = fopen(file, "r"); if(!fp) { fprintf(stderr, "%s: (%s) %s\n", progname, file, ERRMSG); return ERR; } fcat(fileno(fp), fileno(pfp)); fclose(fp); return OK; } /** *** setup a pipe to $PAGER, f.pager or DEF_PAGER **/ FILE *open_pager() { FILE *pfp; char *pager; if(!(pager = f.pager) && !(pager = getenv("PAGER"))) pager = DEF_PAGER; pfp = popen(pager, "w"); if(!pfp) { fprintf(stderr, "%s: popen(%s) failed: %s\n", progname, pager, ERRMSG); return 0; } return pfp; } int fcat(int fpin, int fpout) { int i; char buf[1024]; while((i = read(fpin, buf, 1024))) { if(i == -1) { fprintf(stderr, "%s: %s\n", progname, ERRMSG); return ERR; } write(fpout, buf, i); } return OK; } /** *** expire old news **/ void do_expire(int expire) { DIR *dfp; struct stat st; struct dirent *dir; time_t cur_t, exp_t; int i, ret; dfp = opendir(newsdir); if(!dfp) { fprintf(stderr, "Error opening newsdir (%s): %s\n", newsdir, ERRMSG); exit(1); } chdir(newsdir); create_exclude_list(); #ifdef DEBUG for(i = 0; i < nr_exclude; i++) printf("#%02d: \"%s\"\n", i, exclude_list[i]); #endif time(&cur_t); exp_t = cur_t - (expire * (60 * 60 * 24)); while((dir = readdir(dfp))) { if(dir->d_name[0] == '.') continue; for(i = 0; i < nr_exclude; i++) if(!strcmp(exclude_list[i], dir->d_name)) continue; stat(dir->d_name, &st); if(st.st_mtime < exp_t) { ret = unlink(dir->d_name); if(ret < 0) { fprintf(stderr, "Error: remove (%s): %s\n", dir->d_name, ERRMSG); } else { if(f.verbose) printf("Expiring article: %s\n", dir->d_name); } } } closedir(dfp); } void create_exclude_list(void) { FILE *fp; char buf[BUFSIZ]; fp = fopen(NOEXPFILE, "r"); if(!fp) return; while(fgets(buf, BUFSIZ, fp)) { if(buf[0] == '#' || buf[0] == ';') /* skip comments */ continue; add_exclude(buf); } fclose(fp); } void add_exclude(char *str) { char line[NAME_MAX]; int lineidx = 0; int st = 0; while(1) { switch(*str) { case ' ': break; case '\0': case '\r': case '\n': case ',': if(st) { line[lineidx] = 0; lineidx = 0; st = 0; if(!nr_exclude) exclude_list = (char **)malloc(sizeof(char *)); else exclude_list = (char **)realloc(exclude_list, sizeof(char *) * (nr_exclude + 1)); exclude_list[nr_exclude++] = strdup(line); } if(!*str) return; break; default: st = 1; line[lineidx++] = *str; if(lineidx >= NAME_MAX) { fprintf(stderr, "add_exclude: filename too long (%d)\n", lineidx); exit(1); } break; } str++; } } void print_usage(void) { printf("news v%s - display system news - (C) 1993-96 int@link.xs4all.nl\n", VERSION); printf("Usage: %s [-flags] [[article1] [article2] .. ]\n\n", progname); printf(" -a, --all display all news\n"); printf(" -d, --datestamp add datestamp\n"); printf(" -D, --datefmt=FMT date format (see strftime(3) for details)\n"); printf(" -f, --newsdir=DIR use alternate newsdir\n"); printf(" -n, --names display news article names only\n"); printf(" -l, --oneperline one article name per line\n"); printf(" -p, --page pipe article through $PAGER\n"); printf(" -P, --pager=PAGER pipe article through PAGER\n"); printf(" -s, --articles display number of news articles\n"); if(!access(newsdir, W_OK)) { printf("\n"); printf(" -e, --expire=DAYS expire news older than # DAYS\n"); printf(" -x, --exclude=A,B list of articles to exclude when expiring\n"); } printf("\n"); printf(" --help display this help text\n"); printf(" --version display version\n"); } sysnews-0.9/news.h100640 1750 1750 2266 5776720615 12402 0ustar mnb20mnb20/* news.h ** ** (C) 1995 Charles (int@link.xs4all.nl) ** ** */ /* $Source: /project/master/sysnews/news.h,v $ * $Revision: 1.3 $ * $Date: 1995/07/06 08:40:45 $ */ #define DEF_PAGER "more" #define NOEXPFILE ".noexpire" #define DATEFORMAT "(%b %d %Y)" #define ERRMSG strerror(errno) #undef OK #define OK 0 #undef ERR #define ERR (-1) struct { int all:1; int items:1; int names:1; int page:1; int oneperline:1; int datestamp:1; int verbose:1; int expire; char *pager; } f; #undef __PROTO #ifdef __STDC__ # define __PROTO(proto) proto #else # define __PROTO(proto) () #endif /* news.c */ void main __PROTO((int argc , char **argv )); int implode __PROTO((char *str , char *av [], int max )); void parse_args __PROTO((int argc , char **argv )); void read_sysnews __PROTO((int argc , char **argv )); int cat __PROTO((char *file )); int more __PROTO((FILE *pfp , char *file )); FILE *open_pager __PROTO((void )); int fcat __PROTO((int fpin , int fpout )); void do_expire __PROTO((int expire )); void create_exclude_list __PROTO((void )); void add_exclude __PROTO((char *str )); void print_usage __PROTO((void )); #undef __PROTO sysnews-0.9/news.man100640 1750 1750 4140 6264671141 12707 0ustar mnb20mnb20.\" Copyright (C) 1993,1994,1995 Charles (int@link.xs4all.nl) .\" .\" GPL .\" .\" $Id: news.man,v 1.4 1997/01/08 10:09:37 root Exp $ .\" .TH NEWS 1 "18 January 1995" "Linux" "USER COMMANDS" .SH NAME news \- display system news .SH SYNOPSIS .B news [\-adDeflnpvxs] [[article1] [article2] ..] .SH DESCRIPTION The .B news command keeps you informed of news concerning the system. Each news item is contained in a separate file in the .I /var/sysnews directory. Anyone having write permission to this directory can create a news file. .LP If you run the news command without any flags, it displays every unread file in the .I /var/sysnews directory. .LP Each file is preceded by an appropriate header. To avoid reporting old news, the news command stores a currency time. The news command considers your currency time to be the date the .I $HOME/.news_time file was last modified. Each time you read the news, the modification time of this file changes to that of the reading. Only news item files posted after this time are considered unread. .LP .SH OPTIONS .TP .I "\-a, \-\-all" Display all news, also the already read news. .TP .I \-d, \-\-datestamp Add a date stamp to each article name printed. this can only be used with the \-nl flags. .TP .I "\-D, \-\-datefmt " Specify a date format, see the .BR strftime (3) man page for more details. the default format is .BR "(%b %d %Y)" .TP .I "\-f, \-\-newsdir " Read news from an alternate newsdir. .TP .I "\-l, \-\-oneperline" One article name per line. .TP .I "\-n, \-\-names" Only show the names of news articles. .TP .I "\-p, \-\-page" Pipe articles through .B $PAGER or .BR more (1) if the .B $PAGER environment variable is not set. .TP .I "\-s, \-\-articles" Reports the number of news articles. .LP .SH MAINTAINER OPTIONS .TP .I "\-e, \-\-expire #" Expire news older than # days. .TP .I "\-x, \-\-exclude a,b,c" A comma separated list of articles which may not be expired. if a file named .I .noexpire exists in the .I /var/sysnews direcory, filenames are read from it also. names in this file may be comma separated, and/or one per line. .SH AUTHOR Charles,