65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
/* Copyright (C) 1991, 1993, 1996, 1997, 1998 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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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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 the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <stdio.h>
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#include <unistd.h>
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#ifdef USE_IN_LIBIO
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# include <iolibio.h>
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# define __fdopen _IO_fdopen
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# define tmpfile __new_tmpfile
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#endif
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/* This returns a new stream opened on a temporary file (generated
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by tmpnam). The file is opened with mode "w+b" (binary read/write).
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If we couldn't generate a unique filename or the file couldn't
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be opened, NULL is returned. */
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FILE *
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tmpfile (void)
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{
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char buf[FILENAME_MAX];
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int fd;
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FILE *f;
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if (__path_search (buf, FILENAME_MAX, NULL, "tmpf"))
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return NULL;
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fd = __gen_tempname (buf, 1, 0);
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if (fd < 0)
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return NULL;
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/* Note that this relies on the Unix semantics that
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a file is not really removed until it is closed. */
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(void) remove (buf);
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if ((f = __fdopen (fd, "w+b")) == NULL)
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__close (fd);
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return f;
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}
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#ifdef USE_IN_LIBIO
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# undef tmpfile
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# if defined PIC && DO_VERSIONING
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default_symbol_version (__new_tmpfile, tmpfile, GLIBC_2.1);
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# else
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# ifdef weak_alias
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weak_alias (__new_tmpfile, tmpfile)
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# endif
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# endif
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#endif
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