derek.holloway
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58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/* Implement the xstrndup function.
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Copyright (C) 2005-2024 Free Software Foundation, Inc.
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Written by Kaveh R. Ghazi <ghazi@caip.rutgers.edu>.
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This file is part of the libiberty library.
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Libiberty is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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Libiberty 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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with libiberty; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
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Boston, MA 02110-1301, USA. */
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/*
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@deftypefn Replacement char* xstrndup (const char *@var{s}, size_t @var{n})
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Returns a pointer to a copy of @var{s} with at most @var{n} characters
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without fail, using @code{xmalloc} to obtain memory. The result is
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always NUL terminated.
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@end deftypefn
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*/
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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 <sys/types.h>
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#ifdef HAVE_STRING_H
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#include <string.h>
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#else
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# ifdef HAVE_STRINGS_H
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# include <strings.h>
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# endif
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#endif
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#include "ansidecl.h"
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#include "libiberty.h"
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char *
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xstrndup (const char *s, size_t n)
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{
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char *result;
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size_t len = strnlen (s, n);
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result = XNEWVEC (char, len + 1);
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result[len] = '\0';
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return (char *) memcpy (result, s, len);
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}
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