code.delx.au - pulseaudio/blob - src/pulsecore/core-error.c

   1 /* $Id$ */
   2
   3 /***
   4   This file is part of PulseAudio.
   5
   6   Copyright 2004-2006 Lennart Poettering
   7   Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
   8
   9   PulseAudio is free software; you can redistribute it and/or modify
  10   it under the terms of the GNU Lesser General Public License as published
  11   by the Free Software Foundation; either version 2 of the License,
  12   or (at your option) any later version.
  13
  14   PulseAudio is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with PulseAudio; if not, write to the Free Software
  21   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  22   USA.
  23 ***/
  24
  25 #ifdef HAVE_CONFIG_H
  26 #include <config.h>
  27 #endif
  28
  29 #include <errno.h>
  30 #include <stdio.h>
  31 #include <stdlib.h>
  32 #include <string.h>
  33
  34 #include <pulse/utf8.h>
  35 #include <pulse/xmalloc.h>
  36
  37 #include <pulsecore/core-util.h>
  38 #include <pulsecore/native-common.h>
  39 #include <pulsecore/thread.h>
  40 #include <pulsecore/macro.h>
  41 #include <pulsecore/log.h>
  42
  43 #include "core-error.h"
  44
  45 PA_STATIC_TLS_DECLARE(cstrerror, pa_xfree);
  46
  47 const char* pa_cstrerror(int errnum) {
  48     const char *original = NULL;
  49     char *translated, *t;
  50     char errbuf[128];
  51
  52     if ((t = PA_STATIC_TLS_GET(cstrerror)))
  53         pa_xfree(t);
  54
  55 #if defined(HAVE_STRERROR_R) && defined(__GLIBC__)
  56     original = strerror_r(errnum, errbuf, sizeof(errbuf));
  57 #elif defined(HAVE_STRERROR_R)
  58     if (strerror_r(errnum, errbuf, sizeof(errbuf)) == 0) {
  59         errbuf[sizeof(errbuf) - 1] = 0;
  60         original = errbuf;
  61     }
  62 #else
  63     /* This might not be thread safe, but we hope for the best */
  64     original = strerror(errnum);
  65 #endif
  66
  67     if (!original) {
  68         pa_snprintf(errbuf, sizeof(errbuf), "Unknown error %i", errnum);
  69         original = errbuf;
  70     }
  71
  72     if (!(translated = pa_locale_to_utf8(original))) {
  73         pa_log_warn("Unable to convert error string to locale, filtering.");
  74         translated = pa_utf8_filter(original);
  75     }
  76
  77     PA_STATIC_TLS_SET(cstrerror, translated);
  78
  79     return translated;
  80 }