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       1                 :             : /* GIO - GLib Input, Output and Streaming Library
       2                 :             :  *
       3                 :             :  * Copyright (C) 2017 Collabora Inc.
       4                 :             :  *
       5                 :             :  * SPDX-License-Identifier: LGPL-2.1-or-later
       6                 :             :  *
       7                 :             :  * This library is free software; you can redistribute it and/or
       8                 :             :  * modify it under the terms of the GNU Lesser General Public
       9                 :             :  * License as published by the Free Software Foundation; either
      10                 :             :  * version 2.1 of the License, or (at your option) any later version.
      11                 :             :  *
      12                 :             :  * This library is distributed in the hope that it will be useful,
      13                 :             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      14                 :             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15                 :             :  * Lesser General Public License for more details.
      16                 :             :  *
      17                 :             :  * You should have received a copy of the GNU Lesser General
      18                 :             :  * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
      19                 :             :  *
      20                 :             :  * Author: Xavier Claessens <xavier.claessens@collabora.com>
      21                 :             :  */
      22                 :             : 
      23                 :             : #include "config.h"
      24                 :             : 
      25                 :             : #define __GIO_GIO_H_INSIDE__
      26                 :             : #include "giomodule.h"
      27                 :             : #include "giomodule-priv.h"
      28                 :             : 
      29                 :             : #include <string.h>
      30                 :             : 
      31                 :             : /**
      32                 :             :  * _g_io_module_extract_name:
      33                 :             :  * @filename: filename of a GIOModule
      34                 :             :  *
      35                 :             :  * Extract the plugin name from its filename. It removes optional "lib" or
      36                 :             :  * "libgio" prefix, and removes everything after the first dot. For example:
      37                 :             :  * "libgiognutls.so" -> "gnutls".
      38                 :             :  *
      39                 :             :  * Returns: (transfer full): the module's name
      40                 :             :  */
      41                 :             : gchar *
      42                 :           4 : _g_io_module_extract_name (const char *filename)
      43                 :             : {
      44                 :             :   gchar *bname, *name;
      45                 :             :   const gchar *dot;
      46                 :             :   gsize prefix_len, len;
      47                 :             :   gsize i;
      48                 :             : 
      49                 :           4 :   bname = g_path_get_basename (filename);
      50                 :          72 :   for (i = 0; bname[i]; ++i)
      51                 :             :     {
      52                 :          68 :       if (bname[i] == '-')
      53                 :           0 :         bname[i] = '_';
      54                 :             :     }
      55                 :             : 
      56                 :           4 :   if (g_str_has_prefix (bname, "libgio"))
      57                 :           0 :     prefix_len = 6;
      58                 :             :   /* DLLs built with MSVC generally do not have the 'lib' prefix */
      59                 :           4 :   else if (g_str_has_prefix (bname, "lib") || g_str_has_prefix (bname, "gio"))
      60                 :           4 :     prefix_len = 3;
      61                 :             :   else
      62                 :           0 :     prefix_len = 0; /* use whole name (minus suffix) as plugin name */
      63                 :             : 
      64                 :           4 :   dot = strchr (bname, '.');
      65                 :           4 :   if (dot != NULL)
      66                 :           3 :     len = dot - bname - prefix_len;
      67                 :             :   else
      68                 :           1 :     len = strlen (bname + prefix_len);
      69                 :             : 
      70                 :           4 :   name = g_strndup (bname + prefix_len, len);
      71                 :           4 :   g_free (bname);
      72                 :             : 
      73                 :           4 :   return name;
      74                 :             : }