| /* Copyright (C) 1993-2018 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/>. */ |
| |
| #ifdef HAVE_CONFIG_H |
| # include <config.h> |
| #endif |
| |
| #ifdef _LIBC |
| # include <string.h> |
| #else |
| # include <sys/types.h> |
| #endif |
| |
| #ifndef STPNCPY |
| # ifdef weak_alias |
| # define STPNCPY __stpncpy |
| weak_alias (__stpncpy, stpncpy) |
| # else |
| # define STPNCPY stpncpy |
| # endif |
| #endif |
| |
| /* 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 (char *dest, const char *src, size_t n) |
| { |
| size_t size = __strnlen (src, n); |
| memcpy (dest, src, size); |
| dest += size; |
| if (size == n) |
| return dest; |
| return memset (dest, '\0', n - size); |
| } |
| #ifdef weak_alias |
| libc_hidden_def (__stpncpy) |
| #endif |