src/utils.c

   1 /*
   2  * Copyright (C) 2003-2010 The Music Player Daemon Project
   3  * http://www.musicpd.org
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19
  20 #include "config.h"
  21 #include "utils.h"
  22 #include "conf.h"
  23
  24 #include <glib.h>
  25
  26 #include <assert.h>
  27 #include <string.h>
  28 #include <sys/types.h>
  29 #include <fcntl.h>
  30 #include <errno.h>
  31
  32 #ifndef WIN32
  33 #include <pwd.h>
  34 #endif
  35
  36 #ifdef HAVE_IPV6
  37 #include <sys/socket.h>
  38 #endif
  39
  40 #ifdef WIN32
  41 #include <windows.h>
  42 #endif
  43
  44 char *parsePath(char *path)
  45 {
  46 #ifndef WIN32
  47         if (!g_path_is_absolute(path) && path[0] != '~') {
  48                 g_warning("\"%s\" is not an absolute path", path);
  49                 return NULL;
  50         } else if (path[0] == '~') {
  51                 size_t pos = 1;
  52                 const char *home;
  53
  54                 if (path[1] == '/' || path[1] == '\0') {
  55                         const char *user = config_get_string(CONF_USER, NULL);
  56                         if (user != NULL) {
  57                                 struct passwd *passwd = getpwnam(user);
  58                                 if (!passwd) {
  59                                         g_warning("no such user %s", user);
  60                                         return NULL;
  61                                 }
  62
  63                                 home = passwd->pw_dir;
  64                         } else {
  65                                 home = g_get_home_dir();
  66                                 if (home == NULL) {
  67                                         g_warning("problems getting home "
  68                                                   "for current user");
  69                                         return NULL;
  70                                 }
  71                         }
  72                 } else {
  73                         bool foundSlash = false;
  74                         struct passwd *passwd;
  75                         char *c;
  76
  77                         for (c = path + 1; *c != '\0' && *c != '/'; c++);
  78                         if (*c == '/') {
  79                                 foundSlash = true;
  80                                 *c = '\0';
  81                         }
  82                         pos = c - path;
  83
  84                         passwd = getpwnam(path + 1);
  85                         if (!passwd) {
  86                                 g_warning("user \"%s\" not found", path + 1);
  87                                 return NULL;
  88                         }
  89
  90                         if (foundSlash)
  91                                 *c = '/';
  92
  93                         home = passwd->pw_dir;
  94                 }
  95
  96                 return g_strconcat(home, path + pos, NULL);
  97         } else {
  98 #endif
  99                 return g_strdup(path);
 100 #ifndef WIN32
 101         }
 102 #endif
 103 }
 104
 105 bool
 106 string_array_contains(const char *const* haystack, const char *needle)
 107 {
 108         assert(haystack != NULL);
 109         assert(needle != NULL);
 110
 111         for (; *haystack != NULL; ++haystack)
 112                 if (g_ascii_strcasecmp(*haystack, needle) == 0)
 113                         return true;
 114
 115         return false;
 116 }