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2006-05-30 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> Bruno Haible <bruno@clisp.org> * strndup.c (strndup) [!_LIBC]: Don't undefine macro definition.
67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
/* Copyright (C) 1996, 1997, 1998, 2001, 2002, 2003, 2005, 2006 Free
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Software Foundation, Inc.
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NOTE: The canonical source of this file is maintained with the GNU C Library.
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Bugs can be reported to bug-glibc@prep.ai.mit.edu.
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2, or (at your option) any
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later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#if !_LIBC
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# include "strndup.h"
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#endif
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#include <stdlib.h>
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#include <string.h>
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#if !_LIBC
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# include "strnlen.h"
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# ifndef __strnlen
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# define __strnlen strnlen
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# endif
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#endif
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#undef __strndup
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#if _LIBC
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# undef strndup
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#endif
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#ifndef weak_alias
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# define __strndup strndup
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#endif
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char *
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__strndup (s, n)
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const char *s;
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size_t n;
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{
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size_t len = __strnlen (s, n);
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char *new = malloc (len + 1);
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if (new == NULL)
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return NULL;
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new[len] = '\0';
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return memcpy (new, s, len);
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}
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#ifdef libc_hidden_def
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libc_hidden_def (__strndup)
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#endif
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#ifdef weak_alias
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weak_alias (__strndup, strndup)
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#endif
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