Mercurial > hg > octave-lyh > gnulib-hg
changeset 3943:3e25885877b3
copy from libc/string (via ../config/srclist*).
author | Karl Berry <karl@freefriends.org> |
---|---|
date | Wed, 25 Sep 2002 15:21:38 +0000 |
parents | 24e02e73265b |
children | 4be708325078 |
files | lib/strdup.c |
diffstat | 1 files changed, 39 insertions(+), 26 deletions(-) [+] |
line wrap: on
line diff
--- a/lib/strdup.c +++ b/lib/strdup.c @@ -1,42 +1,55 @@ -/* strdup.c -- return a newly allocated copy of a string - Copyright (C) 1990, 1998 Free Software Foundation, Inc. +/* Copyright (C) 1991, 1996, 1997, 1998, 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. + 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. - This program is distributed in the hope that it will be useful, + 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 General Public License for more details. + 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 General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + 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. */ -#if HAVE_CONFIG_H -# include <config.h> +#ifdef HAVE_CONFIG_H +#include <config.h> #endif -#ifdef STDC_HEADERS +#if defined _LIBC || defined STDC_HEADERS +# include <stdlib.h> # include <string.h> -# include <stdlib.h> #else char *malloc (); -char *strcpy (); +char *memcpy (); +#endif + +#undef __strdup +#undef strdup + +#ifndef weak_alias +# define __strdup strdup #endif -/* Return a newly allocated copy of STR, - or 0 if out of memory. */ - +/* Duplicate S, returning an identical malloc'd string. */ char * -strdup (const char *str) +__strdup (const char *s) { - char *newstr; + size_t len = strlen (s) + 1; + void *new = malloc (len); + + if (new == NULL) + return NULL; - newstr = (char *) malloc (strlen (str) + 1); - if (newstr) - strcpy (newstr, str); - return newstr; + return (char *) memcpy (new, s, len); } +#ifdef libc_hidden_def +libc_hidden_def (__strdup) +#endif +#ifdef weak_alias +weak_alias (__strdup, strdup) +#endif