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c5d9d3bb36
It seems these two were at some point copied in from rsync; replace with more recent versions that will hopefully become available in glibc as well. Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
/* Copy a null-terminated string to a fixed-size buffer, with length checking.
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Copyright (C) 2016 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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/* adapted for Quagga from glibc patch submission originally from
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* Florian Weimer <fweimer@redhat.com>, 2016-05-18 */
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#include <string.h>
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#include "config.h"
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#ifndef HAVE_STRLCPY
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#undef strlcpy
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size_t
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strlcpy (char *__restrict dest, const char *__restrict src, size_t size);
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size_t
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strlcpy (char *__restrict dest, const char *__restrict src, size_t size)
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{
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size_t src_length = strlen (src);
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if (__builtin_expect (src_length >= size, 0))
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{
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if (size > 0)
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{
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/* Copy the leading portion of the string. The last
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character is subsequently overwritten with the NUL
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terminator, but the destination size is usually a
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multiple of a small power of two, so writing it twice
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should be more efficient than copying an odd number of
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bytes. */
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memcpy (dest, src, size);
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dest[size - 1] = '\0';
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}
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}
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else
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/* Copy the string and its terminating NUL character. */
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memcpy (dest, src, src_length + 1);
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return src_length;
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}
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#endif /* HAVE_STRLCPY */
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