Mercurial > retraceit
comparison src/util_linux.c @ 0:147b08bc7d64
Initial commit of a basic Application framework.
| author | Andre Heinecke <andre.heinecke@intevation.de> |
|---|---|
| date | Mon, 23 Mar 2015 12:41:52 +0100 |
| parents | |
| children | 9daf778feaf1 |
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| -1:000000000000 | 0:147b08bc7d64 |
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| 1 #ifndef WIN32 | |
| 2 /* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik | |
| 3 * Software engineering by Intevation GmbH | |
| 4 * | |
| 5 * This file is Free Software under the GNU GPL (v>=2) | |
| 6 * and comes with ABSOLUTELY NO WARRANTY! | |
| 7 * See LICENSE.txt for details. | |
| 8 */ | |
| 9 | |
| 10 /**@file Linux implementation of functions declared in util.h */ | |
| 11 | |
| 12 #include "util.h" | |
| 13 #include "string.h" | |
| 14 #include "strhelp.h" | |
| 15 #include "unistd.h" | |
| 16 #include <sys/types.h> | |
| 17 #include <pwd.h> | |
| 18 | |
| 19 char * | |
| 20 get_proc_install_dir(const char *proc) | |
| 21 { | |
| 22 char *retval = NULL, | |
| 23 *procpath = NULL, | |
| 24 *p = NULL, | |
| 25 buf[MAX_PATH_LINUX]; | |
| 26 ssize_t ret; | |
| 27 size_t path_len = 0; | |
| 28 | |
| 29 if (!proc) | |
| 30 { | |
| 31 return NULL; | |
| 32 } | |
| 33 | |
| 34 xasprintf(&procpath, "/proc/%s/exe", proc); | |
| 35 | |
| 36 ret = readlink (procpath, buf, MAX_PATH_LINUX); | |
| 37 xfree(procpath); | |
| 38 procpath = NULL; | |
| 39 | |
| 40 if (ret <= 0) | |
| 41 { | |
| 42 return NULL; | |
| 43 } | |
| 44 | |
| 45 buf[ret] = '\0'; | |
| 46 | |
| 47 /* cut off the filename */ | |
| 48 p = strrchr (buf, '/'); | |
| 49 if (p == NULL) | |
| 50 { | |
| 51 return NULL; | |
| 52 } | |
| 53 *(p + 1) = '\0'; | |
| 54 | |
| 55 path_len = strlen (buf); | |
| 56 retval = xmalloc (path_len + 1); | |
| 57 strncpy (retval, buf, path_len); | |
| 58 retval[path_len] = '\0'; | |
| 59 | |
| 60 return retval; | |
| 61 } | |
| 62 | |
| 63 char * | |
| 64 get_install_dir() | |
| 65 { | |
| 66 return get_proc_install_dir("self"); | |
| 67 } | |
| 68 | |
| 69 | |
| 70 #endif |