1 /* Copyright (C) 1991, 1996, 1997, 1998, 2002, 2003, 2004 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 2, 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, write to the Free Software Foundation, 18 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ 19 #include <sys/cdefs.h> 20 __RCSID("$NetBSD: strdup.c,v 1.2 2016/05/17 14:00:09 christos Exp $"); 21 22 23 #ifdef HAVE_CONFIG_H 24 # include <config.h> 25 #endif 26 27 #ifndef _LIBC 28 /* Get specification. */ 29 # include "strdup.h" 30 #endif 31 32 #include <stdlib.h> 33 #include <string.h> 34 35 #undef __strdup 36 #undef strdup 37 38 #ifndef weak_alias 39 # define __strdup strdup 40 #endif 41 42 /* Duplicate S, returning an identical malloc'd string. */ 43 char * 44 __strdup (const char *s) 45 { 46 size_t len = strlen (s) + 1; 47 void *new = malloc (len); 48 49 if (new == NULL) 50 return NULL; 51 52 return (char *) memcpy (new, s, len); 53 } 54 #ifdef libc_hidden_def 55 libc_hidden_def (__strdup) 56 #endif 57 #ifdef weak_alias 58 weak_alias (__strdup, strdup) 59 #endif 60