pax_global_header00006660000000000000000000000064127741254370014526gustar00rootroot0000000000000052 comment=6ce3e9d87b8c94ec4a633f85078de25981910124 gspt-6ce3e9d87b8c94ec4a633f85078de25981910124/000077500000000000000000000000001277412543700173165ustar00rootroot00000000000000gspt-6ce3e9d87b8c94ec4a633f85078de25981910124/.travis.yml000066400000000000000000000000411277412543700214220ustar00rootroot00000000000000language: go go: - 1.1 - tip gspt-6ce3e9d87b8c94ec4a633f85078de25981910124/LICENSE000066400000000000000000000020721277412543700203240ustar00rootroot00000000000000The MIT License (MIT) Copyright (c) 2013 Erik Dubbelboer 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. gspt-6ce3e9d87b8c94ec4a633f85078de25981910124/README.md000066400000000000000000000013131277412543700205730ustar00rootroot00000000000000gspt ==== `setproctitle()` package for Go. [![Build Status](https://travis-ci.org/erikdubbelboer/gspt.png?branch=master)](https://travis-ci.org/erikdubbelboer/gspt) -------------------------------- Installation ------------ Simple install the package to your [$GOPATH](https://github.com/golang/go/wiki/GOPATH) with the [go tool](http://golang.org/cmd/go/): ```bash go get github.com/erikdubbelboer/gspt ``` Make sure [Git is installed](http://git-scm.com/downloads) on your machine and in your system's `PATH`. Usage ----- ```go import "github.com/erikdubbelboer/gspt" gspt.SetProcTitle("some title") ``` Please check the [documentation](http://godoc.org/github.com/erikdubbelboer/gspt) for more details. gspt-6ce3e9d87b8c94ec4a633f85078de25981910124/example/000077500000000000000000000000001277412543700207515ustar00rootroot00000000000000gspt-6ce3e9d87b8c94ec4a633f85078de25981910124/example/example.go000066400000000000000000000017661277412543700227450ustar00rootroot00000000000000 package main import ( "fmt" "strings" "time" "os" "os/exec" "github.com/ErikDubbelboer/gspt" ) func main() { fmt.Println("HaveSetProcTitle:", gspt.HaveSetProcTitle) gspt.SetProcTitle("some title") fmt.Println("The title has been set, 'ps a' now shows:") out, err := exec.Command("ps", "aux").Output() if err != nil { // Could not execute 'ps'. return } lines := strings.Split(string(out), "\n") fmt.Println(lines[0]) for _, line := range(lines) { if strings.Contains(line, "some title") { fmt.Println(line) } } fmt.Println("----") fmt.Println("os.Environ() should still contain things like:") fmt.Println("PATH =", os.Getenv("PATH")) fmt.Println("----") fmt.Println("os.Args should still be correct:") for i, a := range(os.Args) { fmt.Println(i, ":", a) } fmt.Println("----") fmt.Println("You can now check the output of 'ps a' or 'top'.") fmt.Println("Press Ctrl+C to kill this program.") time.Sleep(time.Minute * 5) } gspt-6ce3e9d87b8c94ec4a633f85078de25981910124/gspt.go000066400000000000000000000021241277412543700206210ustar00rootroot00000000000000package gspt /* #include "setproctitle.h" */ import "C" import ( "os" "unsafe" "strings" ) const ( // These values must match the return values for spt_init1() used in C. HaveNone = 0 HaveNative = 1 HaveReplacement = 2 ) var ( HaveSetProcTitle int ) func init() { HaveSetProcTitle = int(C.spt_init1()); if HaveSetProcTitle == HaveReplacement { newArgs := make([]string, len(os.Args)) for i, s := range(os.Args) { // Use cgo to force go to make copies of the strings. cs := C.CString(s) newArgs[i] = C.GoString(cs) C.free(unsafe.Pointer(cs)) } os.Args = newArgs env := os.Environ() for _, kv := range(env) { skv := strings.SplitN(kv, "=", 2) os.Setenv(skv[0], skv[1]) } argc := C.int(len(os.Args)) arg0 := C.CString(os.Args[0]) defer C.free(unsafe.Pointer(arg0)) C.spt_init2(argc, arg0) // Restore the original title. SetProcTitle(os.Args[0]) } } func SetProcTitle(title string) { cs := C.CString(title) defer C.free(unsafe.Pointer(cs)) C.spt_setproctitle(cs) } gspt-6ce3e9d87b8c94ec4a633f85078de25981910124/gspt_test.go000066400000000000000000000013061277412543700216610ustar00rootroot00000000000000 package gspt import ( "testing" "bytes" "strings" "time" "encoding/binary" "encoding/hex" "crypto/md5" "os/exec" ) func randomMD5() string { str := md5.New() random := new(bytes.Buffer) binary.Write(random, binary.LittleEndian, time.Now().UTC().UnixNano()) str.Write(random.Bytes()) return hex.EncodeToString(str.Sum(nil)) } func TestSetProcTitle(t *testing.T) { if HaveSetProcTitle == HaveNone { t.SkipNow() } title := randomMD5() SetProcTitle(title) out, err := exec.Command("/bin/ps", "ax").Output() if err != nil { // No ps available on this platform. t.SkipNow() } else if !strings.Contains(string(out), title) { t.FailNow() } } gspt-6ce3e9d87b8c94ec4a633f85078de25981910124/setproctitle.h000066400000000000000000000143721277412543700222170ustar00rootroot00000000000000/* ========================================================================== * setproctitle.h - Linux/Darwin setproctitle. * -------------------------------------------------------------------------- * Copyright (C) 2010 William Ahern * Copyright (C) 2013 Salvatore Sanfilippo * Copyright (C) 2013 Stam He * Copyright (C) 2013 Erik Dubbelboer * * 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE * USE OR OTHER DEALINGS IN THE SOFTWARE. * ========================================================================== */ #ifndef _GNU_SOURCE #define _GNU_SOURCE #endif #include // NULL size_t #include // va_list va_start va_end #include // malloc(3) setenv(3) clearenv(3) setproctitle(3) getprogname(3) #include // vsnprintf(3) snprintf(3) #include // strlen(3) strdup(3) memset(3) memcpy(3) #include /* program_invocation_name program_invocation_short_name */ #include /* freebsd setproctitle(3) */ #include /* freebsd setproctitle(3) */ #if !defined(HAVE_SETPROCTITLE) #define HAVE_SETPROCTITLE (defined __NetBSD__ || defined __FreeBSD__ || defined __OpenBSD__) #endif #if HAVE_SETPROCTITLE #define HAVE_SETPROCTITLE_REPLACEMENT 0 #else #define HAVE_SETPROCTITLE_REPLACEMENT (defined __linux || defined __APPLE__) #endif #if HAVE_SETPROCTITLE_REPLACEMENT #ifndef SPT_MAXTITLE #define SPT_MAXTITLE 255 #endif extern char **environ; static struct { // Original value. const char *arg0; // First enviroment variable. char* env0; // Title space available. char* base; char* end; // Pointer to original nul character within base. char *nul; int reset; } SPT; #ifndef SPT_MIN #define SPT_MIN(a, b) (((a) < (b))? (a) : (b)) #endif static inline size_t spt_min(size_t a, size_t b) { return SPT_MIN(a, b); } static char **spt_find_argv_from_env(int argc, char *arg0) { int i; char **buf = NULL; char *ptr; char *limit; if (!(buf = (char **)malloc((argc + 1) * sizeof(char *)))) { return NULL; } buf[argc] = NULL; // Walk back from environ until you find argc-1 null-terminated strings. // Don't look for argv[0] as it's probably not preceded by 0. ptr = SPT.env0; limit = ptr - 8192; // TODO: empiric limit: should use MAX_ARG --ptr; for (i = argc - 1; i >= 1; --i) { if (*ptr) { return NULL; } --ptr; while (*ptr && ptr > limit) { --ptr; } if (ptr <= limit) { return NULL; } buf[i] = (ptr + 1); } // The first arg has not a zero in front. But what we have is reliable // enough (modulo its encoding). Check if it is exactly what found. // // The check is known to fail on OS X with locale C if there are // non-ascii characters in the executable path. ptr -= strlen(arg0); if (ptr <= limit) { return NULL; } if (strcmp(ptr, arg0)) { return NULL; } buf[0] = ptr; return buf; } static int spt_init1() { // Store a pointer to the first enviroment variable since go // will overwrite enviroment. SPT.env0 = environ[0]; return 2; } static void spt_init2(int argc, char *arg0) { char **argv = spt_find_argv_from_env(argc, arg0); char **envp = &SPT.env0; char *base, *end, *nul, *tmp; int i; if (!(base = argv[0])) return; nul = &base[strlen(base)]; end = nul + 1; for (i = 0; i < argc || (i >= argc && argv[i]); i++) { if (!argv[i] || argv[i] < end) continue; end = argv[i] + strlen(argv[i]) + 1; } for (i = 0; envp[i]; i++) { if (envp[i] < end) continue; end = envp[i] + strlen(envp[i]) + 1; } if (!(SPT.arg0 = strdup(argv[0]))) return; #if __GLIBC__ if (!(tmp = strdup(program_invocation_name))) return; program_invocation_name = tmp; if (!(tmp = strdup(program_invocation_short_name))) return; program_invocation_short_name = tmp; #elif __APPLE__ if (!(tmp = strdup(getprogname()))) return; setprogname(tmp); #endif memset(base, 0, end - base); SPT.nul = nul; SPT.base = base; SPT.end = end; return; } static void setproctitle(const char *fmt, ...) { char buf[SPT_MAXTITLE + 1]; // Use buffer in case argv[0] is passed. va_list ap; char *nul; int len; if (!SPT.base) return; if (fmt) { va_start(ap, fmt); len = vsnprintf(buf, sizeof buf, fmt, ap); va_end(ap); } else { len = snprintf(buf, sizeof buf, "%s", SPT.arg0); } if (len <= 0) { return; } if (!SPT.reset) { memset(SPT.base, 0, SPT.end - SPT.base); SPT.reset = 1; } else { memset(SPT.base, 0, spt_min(sizeof buf, SPT.end - SPT.base)); } len = spt_min(len, spt_min(sizeof buf, SPT.end - SPT.base) - 1); memcpy(SPT.base, buf, len); nul = &SPT.base[len]; if (nul < SPT.nul) { *SPT.nul = '.'; } else if (nul == SPT.nul && &nul[1] < SPT.end) { *SPT.nul = ' '; *++nul = '\0'; } } #else // HAVE_SETPROCTITLE_REPLACEMENT static int spt_init1() { #if HAVE_SETPROCTITLE return 1; #else return 0; #endif } static void spt_init2(int argc, char *arg0) { (void)argc; (void)arg0; } #endif // HAVE_SETPROCTITLE_REPLACEMENT static void spt_setproctitle(const char *title) { #if HAVE_SETPROCTITLE || HAVE_SETPROCTITLE_REPLACEMENT setproctitle("%s", title); #else (void)title; #endif }