| 1 | /* Copyright (C) 1991, 1996-1998, 2002-2004, 2006-2007, 2009-2020 Free Software |
| 2 | Foundation, Inc. |
| 3 | |
| 4 | This file is part of the GNU C Library. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 3, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License along |
| 17 | with this program; if not, see <https://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #ifndef _LIBC |
| 20 | # include <config.h> |
| 21 | #endif |
| 22 | |
| 23 | /* Get specification. */ |
| 24 | #include <string.h> |
| 25 | |
| 26 | #include <stdlib.h> |
| 27 | |
| 28 | #undef __strdup |
| 29 | #ifdef _LIBC |
| 30 | # undef strdup |
| 31 | #endif |
| 32 | |
| 33 | #ifndef weak_alias |
| 34 | # define __strdup strdup |
| 35 | #endif |
| 36 | |
| 37 | /* Duplicate S, returning an identical malloc'd string. */ |
| 38 | char * |
| 39 | __strdup (const char *s) |
| 40 | { |
| 41 | size_t len = strlen (s) + 1; |
| 42 | void *new = malloc (len); |
| 43 | |
| 44 | if (new == NULL) |
| 45 | return NULL; |
| 46 | |
| 47 | return (char *) memcpy (new, s, len); |
| 48 | } |
| 49 | #ifdef libc_hidden_def |
| 50 | libc_hidden_def (__strdup) |
| 51 | #endif |
| 52 | #ifdef weak_alias |
| 53 | weak_alias (__strdup, strdup) |
| 54 | #endif |