src/basic/glob-util.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2010 Lennart Poettering
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include <errno.h>
  21 #include <glob.h>
  22
  23 #include "glob-util.h"
  24 #include "macro.h"
  25 #include "strv.h"
  26
  27 int glob_exists(const char *path) {
  28         _cleanup_globfree_ glob_t g = {};
  29         int k;
  30
  31         assert(path);
  32
  33         errno = 0;
  34         k = glob(path, GLOB_NOSORT|GLOB_BRACE, NULL, &g);
  35
  36         if (k == GLOB_NOMATCH)
  37                 return 0;
  38         if (k == GLOB_NOSPACE)
  39                 return -ENOMEM;
  40         if (k != 0)
  41                 return errno > 0 ? -errno : -EIO;
  42
  43         return !strv_isempty(g.gl_pathv);
  44 }
  45
  46 int glob_extend(char ***strv, const char *path) {
  47         _cleanup_globfree_ glob_t g = {};
  48         int k;
  49         char **p;
  50
  51         errno = 0;
  52         k = glob(path, GLOB_NOSORT|GLOB_BRACE, NULL, &g);
  53
  54         if (k == GLOB_NOMATCH)
  55                 return -ENOENT;
  56         if (k == GLOB_NOSPACE)
  57                 return -ENOMEM;
  58         if (k != 0)
  59                 return errno > 0 ? -errno : -EIO;
  60         if (strv_isempty(g.gl_pathv))
  61                 return -ENOENT;
  62
  63         STRV_FOREACH(p, g.gl_pathv) {
  64                 k = strv_extend(strv, *p);
  65                 if (k < 0)
  66                         return k;
  67         }
  68
  69         return 0;
  70 }