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08d2024b41
Use snprintf instead of mempcpy plus itoa_word and remove unused definitions. There is no potential for infinite recursion because snprintf only use strerror_r for the %m specifier. Checked on x86-64-linux-gnu, i686-linux-gnu, powerpc64le-linux-gnu, and s390x-linux-gnu. Tested-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/* Copyright (C) 1993-2020 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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<https://www.gnu.org/licenses/>. */
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#include <string.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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/* Return a string describing the errno code in ERRNUM. */
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char *
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__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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__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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__snprintf (buf, buflen, "%s: %d", _("Error in unknown error system: "),
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errnum);
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return buf;
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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 *) es->bad_sub;
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if (code >= es->subsystem[sub].max_code)
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{
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__snprintf (buf, buflen, "%s%s %d", _("Unknown error "),
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es->subsystem[sub].subsys_name, errnum);
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return buf;
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}
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return (char *) _(es->subsystem[sub].codes[code]);
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}
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libc_hidden_def (__strerror_r)
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weak_alias (__strerror_r, strerror_r)
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