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