gio/giomodule-priv.c

   1 /* GIO - GLib Input, Output and Streaming Library
   2  *
   3  * Copyright (C) 2017 Collabora Inc.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library 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 GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General
  16  * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
  17  *
  18  * Author: Xavier Claessens <xavier.claessens@collabora.com>
  19  */
  20
  21 #include "config.h"
  22 #include "giomodule.h"
  23 #include "giomodule-priv.h"
  24
  25 #include <string.h>
  26
  27 /**
  28  * _g_io_module_extract_name:
  29  * @filename: filename of a GIOModule
  30  *
  31  * Extract the plugin name from its filename. It removes optional "lib" or
  32  * "libgio" prefix, and removes everything after the first dot. For example:
  33  * "libgiognutls.so" -> "gnutls".
  34  *
  35  * Returns: (transfer full): the module's name
  36  */
  37 gchar *
  38 _g_io_module_extract_name (const char *filename)
  39 {
  40   gchar *bname, *name;
  41   const gchar *dot;
  42   gsize prefix_len, len;
  43   gsize i;
  44
  45   bname = g_path_get_basename (filename);
  46   for (i = 0; bname[i]; ++i)
  47     {
  48       if (bname[i] == '-')
  49         bname[i] = '_';
  50     }
  51
  52   if (g_str_has_prefix (bname, "libgio"))
  53     prefix_len = 6;
  54   else if (g_str_has_prefix (bname, "lib"))
  55     prefix_len = 3;
  56   else
  57     prefix_len = 0; /* use whole name (minus suffix) as plugin name */
  58
  59   dot = strchr (bname, '.');
  60   if (dot != NULL)
  61     len = dot - bname - prefix_len;
  62   else
  63     len = strlen (bname + prefix_len);
  64
  65   name = g_strndup (bname + prefix_len, len);
  66   g_free (bname);
  67
  68   return name;
  69 }