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nano-7.2/lib/strdup.c

55 lines
1.3 KiB
C

/* Copyright (C) 1991, 1996-1998, 2002-2004, 2006-2007, 2009-2023 Free Software
Foundation, Inc.
This file is part of the GNU C Library.
This file 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.
This file 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 this program. If not, see <https://www.gnu.org/licenses/>. */
#ifndef _LIBC
# include <config.h>
#endif
/* Get specification. */
#include <string.h>
#include <stdlib.h>
#undef __strdup
#ifdef _LIBC
# undef strdup
#endif
#ifndef weak_alias
# define __strdup strdup
#endif
/* Duplicate S, returning an identical malloc'd string. */
char *
__strdup (const char *s)
{
size_t len = strlen (s) + 1;
void *new = malloc (len);
if (new == NULL)
return NULL;
return (char *) memcpy (new, s, len);
}
#ifdef libc_hidden_def
libc_hidden_def (__strdup)
#endif
#ifdef weak_alias
weak_alias (__strdup, strdup)
#endif