andre@112: #ifndef _WIN32
andre@0: /* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
andre@0:  * Software engineering by Intevation GmbH
andre@0:  *
andre@0:  * This file is Free Software under the GNU GPL (v>=2)
andre@0:  * and comes with ABSOLUTELY NO WARRANTY!
andre@0:  * See LICENSE.txt for details.
andre@0:  */
andre@0: 
andre@0: /**@file Linux implementation of functions declared in util.h */
andre@0: 
andre@0: #include "util.h"
andre@0: #include "string.h"
andre@0: #include "strhelp.h"
andre@0: #include "unistd.h"
andre@0: #include <sys/types.h>
andre@0: #include <pwd.h>
andre@0: 
andre@0: char *
andre@0: get_proc_install_dir(const char *proc)
andre@0: {
andre@0:   char *retval = NULL,
andre@0:        *procpath = NULL,
andre@0:        *p = NULL,
andre@0:         buf[MAX_PATH_LINUX];
andre@0:   ssize_t ret;
andre@0:   size_t path_len = 0;
andre@0: 
andre@0:   if (!proc)
andre@0:     {
andre@0:       return NULL;
andre@0:     }
andre@0: 
andre@0:   xasprintf(&procpath, "/proc/%s/exe", proc);
andre@0: 
andre@0:   ret = readlink (procpath, buf, MAX_PATH_LINUX);
andre@0:   xfree(procpath);
andre@0:   procpath = NULL;
andre@0: 
andre@0:   if (ret <= 0)
andre@0:     {
andre@0:       return NULL;
andre@0:     }
andre@0: 
andre@0:   buf[ret] = '\0';
andre@0: 
andre@0:   /* cut off the filename */
andre@0:   p = strrchr (buf, '/');
andre@0:   if (p == NULL)
andre@0:     {
andre@0:       return NULL;
andre@0:     }
andre@0:   *(p + 1) = '\0';
andre@0: 
andre@0:   path_len = strlen (buf);
andre@0:   retval = xmalloc (path_len + 1);
andre@0:   strncpy (retval, buf, path_len);
andre@0:   retval[path_len] = '\0';
andre@0: 
andre@0:   return retval;
andre@0: }
andre@0: 
andre@0: char *
andre@0: get_install_dir()
andre@0: {
andre@0:   return get_proc_install_dir("self");
andre@0: }
andre@0: 
andre@0: 
andre@0: #endif