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73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
/* Copyright (C) 1993-2017 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 <errno.h>
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#include <libintl.h>
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#include <stdio.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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#include <_itoa.h>
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/* It is critical here that we always use the `dcgettext' function for
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the message translation. Since <libintl.h> only defines the macro
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`dgettext' to use `dcgettext' for optimizing programs this is not
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always guaranteed. */
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#ifndef dgettext
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# include <locale.h> /* We need LC_MESSAGES. */
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# define dgettext(domainname, msgid) dcgettext (domainname, msgid, LC_MESSAGES)
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#endif
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/* Fill buf with a string describing the errno code in ERRNUM. */
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int
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__xpg_strerror_r (int errnum, char *buf, size_t buflen)
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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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const char *estr;
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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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return EINVAL;
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es = &__mach_error_systems[system];
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if (sub >= es->max_sub)
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estr = (const char *) es->bad_sub;
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else if (code >= es->subsystem[sub].max_code)
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return EINVAL;
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else
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estr = (const char *) _(es->subsystem[sub].codes[code]);
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size_t estrlen = strlen (estr) + 1;
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if (buflen < estrlen)
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return ERANGE;
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memcpy (buf, estr, estrlen);
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return 0;
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}
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