57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/* Copyright (C) 1996-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#include <sys/types.h>
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#if defined _LIBC || defined STDC_HEADERS
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# include <stdlib.h>
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# include <string.h>
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#else
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char *malloc ();
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#endif
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#undef __strndup
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#undef strndup
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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 (const char *s, size_t n)
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{
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size_t len = __strnlen (s, n);
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char *new = (char *) 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 (char *) 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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