|  | /* Copyright (C) 1993-2016 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/>.  */ | 
|  |  | 
|  | /* This is almost copied from strncpy.c, written by Torbjorn Granlund.  */ | 
|  |  | 
|  | #include <string.h> | 
|  |  | 
|  |  | 
|  | /* Copy no more than N characters of SRC to DEST, returning the address of | 
|  | the terminating '\0' in DEST, if any, or else DEST + N.  */ | 
|  | char * | 
|  | __stpncpy_chk (char *dest, const char *src, size_t n, size_t destlen) | 
|  | { | 
|  | if (__builtin_expect (destlen < n, 0)) | 
|  | __chk_fail (); | 
|  |  | 
|  | return __stpncpy (dest, src, n); | 
|  | } |