glibc/debug/stpcpy_chk.c
Frédéric Bérat dd8486ffc1 string: Ensure *_chk routines have their hidden builtin definition available
If libc_hidden_builtin_{def,proto} isn't properly set for *_chk routines,
there are unwanted PLT entries in libc.so.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
2023-07-05 16:59:48 +02:00

36 lines
1.1 KiB
C

/* Copyright (C) 1992-2023 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
<https://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
/* Copy SRC to DEST, returning the address of the terminating '\0' in DEST. */
char *
__stpcpy_chk (char *dest, const char *src, size_t destlen)
{
size_t len = strlen (src);
if (len >= destlen)
__chk_fail ();
return memcpy (dest, src, len + 1) + len;
}
libc_hidden_builtin_def (__stpcpy_chk)