src/misc/linux_specific.c

   1 /*****************************************************************************
   2  * linux_specific.c: Linux-specific initialization
   3  *****************************************************************************
   4  * Copyright © 2008 Rémi Denis-Courmont
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  19  *****************************************************************************/
  20
  21 #ifdef HAVE_CONFIG_H
  22 # include "config.h"
  23 #endif
  24
  25 #include <stdio.h>
  26 #include <string.h>
  27
  28 #include <vlc_common.h>
  29 #include "../libvlc.h"
  30
  31 #if 0
  32 #include <assert.h>
  33 #include <pthread.h>
  34
  35 static void set_libvlc_path (void)
  36 {
  37     static char libvlc_path[PATH_MAX];
  38
  39     assert (strlen (LIBDIR) < sizeof (libvlc_path));
  40     strcpy (libvlc_path, LIBDIR); /* fail safe */
  41     psz_vlcpath = libvlc_path;
  42
  43     /* Find the path to libvlc (i.e. ourselves) */
  44     FILE *maps = fopen ("/proc/self/maps", "rt");
  45     if (maps == NULL)
  46         return;
  47
  48     for (;;)
  49     {
  50         char buf[5000], *dir, *end;
  51
  52         if (fgets (buf, sizeof (buf), maps) == NULL)
  53             break;
  54
  55         dir = strchr (buf, '/');
  56         if (dir == NULL)
  57             continue;
  58         end = strrchr (dir, '/');
  59         if (end == NULL)
  60             continue;
  61         if (strncmp (end + 1, "libvlc.so.", 10))
  62             continue;
  63
  64         *end = '\0';
  65         printf ("libvlc at %s\n", dir);
  66         if (strlen (dir) < sizeof (libvlc_path))
  67             strcpy (libvlc_path, dir);
  68         break;
  69     }
  70
  71     fclose (maps);
  72 }
  73 #endif
  74
  75 #ifdef __GLIBC__
  76 # include <gnu/libc-version.h>
  77 # include <stdlib.h>
  78 #endif
  79
  80 void system_Init (libvlc_int_t *libvlc, int *argc, const char *argv[])
  81 {
  82 #ifdef __GLIBC__
  83     const char *glcv = gnu_get_libc_version ();
  84
  85     /* gettext in glibc 2.5-2.7 is not thread-safe. LibVLC keeps crashing,
  86      * especially in sterror_r(). Even if we have NLS disabled, the calling
  87      * process might have called setlocale(). */
  88     if (strverscmp (glcv, "2.5") >= 0 && strverscmp (glcv, "2.8") < 0)
  89     {
  90         fputs ("LibVLC has detected an unusable buggy GNU/libc version.\n"
  91                "Please update to version 2.8 or newer.\n", stderr);
  92         fflush (stderr);
  93 #ifndef DISABLE_BUGGY_GLIBC_CHECK
  94         abort ();
  95 #endif
  96     }
  97 #endif
  98
  99 #if 0
 100     static pthread_once_t once = PTHREAD_ONCE_INIT;
 101     pthread_once (&once, set_libvlc_path);
 102 #endif
 103     (void)libvlc; (void)argc; (void)argv;
 104 }
 105
 106 void system_Configure (libvlc_int_t *libvlc, int *argc, const char *argv[])
 107 {
 108     (void)libvlc; (void)argc; (void)argv;
 109 }
 110
 111 void system_End (libvlc_int_t *libvlc)
 112 {
 113     (void)libvlc;
 114 }
 115