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9f3bba8bd4
On Windows, strerror can actually return "Unknown Error" (e.g. for large errnums). The code assumes the return value to be helpful. Make it slightly more helpful by catching the message and appending the errnum.
80 lines
2.2 KiB
C
80 lines
2.2 KiB
C
/***
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This file is part of PulseAudio.
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Copyright 2004-2006 Lennart Poettering
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Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <pulse/utf8.h>
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#include <pulse/xmalloc.h>
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#include <pulsecore/thread.h>
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#include <pulsecore/macro.h>
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#include <pulsecore/log.h>
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#include "core-error.h"
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PA_STATIC_TLS_DECLARE(cstrerror, pa_xfree);
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const char* pa_cstrerror(int errnum) {
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const char *original = NULL;
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char *translated, *t;
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char errbuf[128];
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if (errnum < 0)
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errnum = -errnum;
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if ((t = PA_STATIC_TLS_GET(cstrerror)))
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pa_xfree(t);
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#if defined(HAVE_STRERROR_R) && defined(__GLIBC__)
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original = strerror_r(errnum, errbuf, sizeof(errbuf));
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#elif defined(HAVE_STRERROR_R)
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if (strerror_r(errnum, errbuf, sizeof(errbuf)) == 0) {
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errbuf[sizeof(errbuf) - 1] = 0;
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original = errbuf;
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}
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#else
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/* This might not be thread safe, but we hope for the best */
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original = strerror(errnum);
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#endif
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/* The second condition is a Windows-ism */
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if (!original || !strcasecmp(original, "Unknown error")) {
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pa_snprintf(errbuf, sizeof(errbuf), "Unknown error %d", errnum);
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original = errbuf;
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}
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if (!(translated = pa_locale_to_utf8(original))) {
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pa_log_warn("Unable to convert error string to locale, filtering.");
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translated = pa_utf8_filter(original);
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}
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PA_STATIC_TLS_SET(cstrerror, translated);
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return translated;
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}
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