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27114e2046
* sysdeps/generic/tmpfile.c: ... here. * sysdeps/mach/hurd/tmpfile.c: New file. * hurd/fopenport.c (__fopenport): Renamed from fopenport. [USE_IN_LIBIO] (fopencookie): #define as _IO_fopencookie. (fopenport): Define as weak alias. * libio/iofopncook.c (_IO_fopencookie): Move forward declaration ... * libio/libioP.h: ... to here.
61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/* Open a stdio stream on an anonymous temporary file. Generic/POSIX version.
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Copyright (C) 1991,93,96,97,98,99,2000 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, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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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", 0))
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return NULL;
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fd = __gen_tempname (buf, __GT_FILE);
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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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# include <shlib-compat.h>
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versioned_symbol (libc, __new_tmpfile, tmpfile, GLIBC_2_1);
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#endif
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