tmpfile.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1984 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI" /* from S5R2 1.3 */
/*LINTLIBRARY*/
/*
* tmpfile - return a pointer to an update file that can be
* used for scratch. The file will automatically
* go away if the program using it terminates.
*/
#include <stdio.h>
extern FILE *fopen();
extern int unlink();
extern char *tmpnam();
extern void perror();
FILE *
tmpfile()
{
char tfname[L_tmpnam];
register FILE *p;
(void) tmpnam(tfname);
if((p = fopen(tfname, "w+")) == NULL)
return NULL;
else
(void) unlink(tfname);
return(p);
}