1 /* -*- buffer-read-only: t -*- vi: set ro: */
2 /* DO NOT EDIT! GENERATED AUTOMATICALLY! */
3 /* strerror.c --- POSIX compatible system error routine
5 Copyright (C) 2007-2013 Free Software Foundation, Inc.
7 This program is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
31 #include "strerror-override.h"
34 /* Use the system functions, not the gnulib overrides in this file. */
41 static char buf[STACKBUF_LEN];
44 /* Cast away const, due to the historical signature of strerror;
45 callers should not be modifying the string. */
46 const char *msg = strerror_override (n);
52 /* Our strerror_r implementation might use the system's strerror
53 buffer, so all other clients of strerror have to see the error
54 copied into a buffer that we manage. This is not thread-safe,
55 even if the system strerror is, but portable programs shouldn't
56 be using strerror if they care about thread-safety. */
59 static char const fmt[] = "Unknown error %d";
60 verify (sizeof buf >= sizeof (fmt) + INT_STRLEN_BOUND (n));
61 sprintf (buf, fmt, n);
66 /* Fix STACKBUF_LEN if this ever aborts. */
68 if (sizeof buf <= len)
71 return memcpy (buf, msg, len + 1);