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annotate src/util_linux.c @ 47:c4a5ef6db895

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Add definitions used for the detachable image configuration.
author Andre Heinecke <andre.heinecke@intevation.de>
date Thu, 07 May 2015 10:20:47 +0200
parents 147b08bc7d64
children 9daf778feaf1
rev   line source
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
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