| /* Copyright (C) 1991, 1992, 1995, 1997 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. */ |
| |
| #include <string.h> |
| |
| /* Copy no more than N bytes of SRC to DEST, stopping when C is found. |
| Return the position in DEST one byte past where C was copied, |
| or NULL if C was not found in the first N bytes of SRC. */ |
| void * |
| __memccpy (dest, src, c, n) |
| void *dest; |
| const void *src; |
| int c; |
| size_t nbytes; |
| { |
| /* Except when N > 65535, this is what a hand-coded version would |
| do anyway. */ |
| |
| void *found = memchr (src, c, n); |
| |
| if (found == NULL) |
| { |
| (void) memcpy (dest, src, n); |
| return NULL; |
| } |
| |
| (void) memcpy (dest, src, (char *) found + 1 - (char *) src); |
| return (PTR) ((char *) dest + ((char *) found + 1 - (char *) src)); |
| } |
| |
| weak_alias (__memccpy, memccpy) |