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102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
/* strerror_l - Get errno description string in given locale. Mach version.
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Copyright (C) 2007-2013 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <libintl.h>
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#include <locale.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 <mach/error.h>
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#include <errorlib.h>
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#include <sys/param.h>
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static __thread char *last_value;
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static const char *
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translate (const char *str, locale_t loc)
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{
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locale_t oldloc = __uselocale (loc);
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const char *res = _(str);
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__uselocale (oldloc);
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return res;
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}
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/* Return a string describing the errno code in ERRNUM. */
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char *
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strerror_l (int errnum, locale_t loc)
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{
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int system;
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int sub;
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int code;
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const struct error_system *es;
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extern void __mach_error_map_compat (int *);
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__mach_error_map_compat (&errnum);
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system = err_get_system (errnum);
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sub = err_get_sub (errnum);
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code = err_get_code (errnum);
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if (system > err_max_system || ! __mach_error_systems[system].bad_sub)
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{
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free (last_value);
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if (__asprintf (&last_value, "%s%X",
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translate ("Error in unknown error system: ", loc),
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errnum) == -1)
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last_value = NULL;
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return last_value;
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}
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es = &__mach_error_systems[system];
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if (sub >= es->max_sub)
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return (char *) translate (es->bad_sub, loc);
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if (code >= es->subsystem[sub].max_code)
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{
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free (last_value);
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if (__asprintf (&last_value, "%s%s %d",
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translate ("Unknown error ", loc),
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translate (es->subsystem[sub].subsys_name, loc),
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errnum) == -1)
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last_value = NULL;
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return last_value;
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}
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return (char *) translate (es->subsystem[sub].codes[code], loc);
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}
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#ifdef _LIBC
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# ifdef _LIBC_REENTRANT
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/* This is called when a thread is exiting to free the last_value string. */
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static void __attribute__ ((section ("__libc_thread_freeres_fn")))
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strerror_thread_freeres (void)
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{
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free (last_value);
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}
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text_set_element (__libc_thread_subfreeres, strerror_thread_freeres);
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text_set_element (__libc_subfreeres, strerror_thread_freeres);
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# endif
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#endif
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