mirror of
https://git.proxmox.com/git/mirror_frr
synced 2025-10-31 07:10:00 +00:00
b45ac5f5c6
config.h (or, transitively, zebra.h) must be the first include file listed for autoconf things like _GNU_SOURCE and _POSIX_C_SOURCE to work correctly. Signed-off-by: David Lamparter <equinox@diac24.net>
59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/* Copy a null-terminated string to a fixed-size buffer, with length checking.
|
|
* Copyright (C) 2016 Free Software Foundation, Inc.
|
|
* This file is part of the GNU C Library.
|
|
*
|
|
* The GNU C Library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* The GNU C Library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with the GNU C Library; if not, see
|
|
* <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/* adapted for Quagga from glibc patch submission originally from
|
|
* Florian Weimer <fweimer@redhat.com>, 2016-05-18 */
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <string.h>
|
|
|
|
#ifndef HAVE_STRLCPY
|
|
#undef strlcpy
|
|
|
|
size_t strlcpy(char *__restrict dest,
|
|
const char *__restrict src, size_t destsize);
|
|
|
|
size_t strlcpy(char *__restrict dest,
|
|
const char *__restrict src, size_t destsize)
|
|
{
|
|
size_t src_length = strlen(src);
|
|
|
|
if (__builtin_expect(src_length >= destsize, 0)) {
|
|
if (destsize > 0) {
|
|
/*
|
|
* Copy the leading portion of the string. The last
|
|
* character is subsequently overwritten with the NUL
|
|
* terminator, but the destination destsize is usually
|
|
* a multiple of a small power of two, so writing it
|
|
* twice should be more efficient than copying an odd
|
|
* number of bytes.
|
|
*/
|
|
memcpy(dest, src, destsize);
|
|
dest[destsize - 1] = '\0';
|
|
}
|
|
} else
|
|
/* Copy the string and its terminating NUL character. */
|
|
memcpy(dest, src, src_length + 1);
|
|
return src_length;
|
|
}
|
|
#endif /* HAVE_STRLCPY */
|