diff options
Diffstat (limited to 'sysdeps/generic/stpcpy_chk.c')
-rw-r--r-- | sysdeps/generic/stpcpy_chk.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/sysdeps/generic/stpcpy_chk.c b/sysdeps/generic/stpcpy_chk.c new file mode 100644 index 0000000000..dacda0115a --- /dev/null +++ b/sysdeps/generic/stpcpy_chk.c @@ -0,0 +1,45 @@ +/* Copyright (C) 1992, 1995, 1997, 2002, 2004 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#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 (dest, src, destlen) + char *dest; + const char *src; + size_t destlen; +{ + register char *d = dest; + register const char *s = src; + + do + { + if (__builtin_expect (destlen-- == 0, 0)) + __chk_fail (); + *d++ = *s; + } + while (*s++ != '\0'); + + return d - 1; +} |