diff options
Diffstat (limited to 'libio/oldtmpfile.c')
-rw-r--r-- | libio/oldtmpfile.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/libio/oldtmpfile.c b/libio/oldtmpfile.c new file mode 100644 index 0000000..6c4275d --- /dev/null +++ b/libio/oldtmpfile.c @@ -0,0 +1,51 @@ +/* Copyright (C) 1991, 1993, 1996, 1997, 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#define _IO_USE_OLD_IO_FILE +#include <stdio.h> +#include <unistd.h> +#include <iolibio.h> + +/* This returns a new stream opened on a temporary file (generated + by tmpnam). The file is opened with mode "w+b" (binary read/write). + If we couldn't generate a unique filename or the file couldn't + be opened, NULL is returned. */ +FILE * +__old_tmpfile (void) +{ + char buf[FILENAME_MAX]; + int fd; + FILE *f; + + if (__path_search (buf, FILENAME_MAX, NULL, "tmpf")) + return NULL; + fd = __gen_tempname (buf, 1, 0); + if (fd < 0) + return NULL; + + /* Note that this relies on the Unix semantics that + a file is not really removed until it is closed. */ + (void) remove (buf); + + if ((f = _IO_old_fdopen (fd, "w+b")) == NULL) + close (fd); + + return f; +} + +symbol_version (__old_tmpfile, tmpfile, GLIBC_2.0); |