vx32

Local 9vx git repository for patches.
git clone git://r-36.net/vx32
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tmpfile.c (2804B)

      1 /*-
      2  * Copyright (c) 1990, 1993
      3  *	The Regents of the University of California.  All rights reserved.
      4  *
      5  * This code is derived from software contributed to Berkeley by
      6  * Chris Torek.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  * 3. All advertising materials mentioning features or use of this software
     17  *    must display the following acknowledgement:
     18  *	This product includes software developed by the University of
     19  *	California, Berkeley and its contributors.
     20  * 4. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  */
     36 
     37 #include <sys/types.h>
     38 #include <signal.h>
     39 #include <unistd.h>
     40 #include <errno.h>
     41 #include <stdio.h>
     42 #include <stdlib.h>
     43 #include <string.h>
     44 
     45 FILE *
     46 tmpfile(void)
     47 {
     48 	sigset_t set, oset;
     49 	FILE *fp;
     50 	int fd, sverrno;
     51 #define	TRAILER	"tmp.XXXXXX"
     52 	char *buf;
     53 	const char *tmpdir;
     54 
     55 	tmpdir = NULL;
     56 //	if (issetugid() == 0)
     57 		tmpdir = getenv("TMPDIR");
     58 	if (tmpdir == NULL)
     59 		tmpdir = "/var/tmp";
     60 
     61 	(void)asprintf(&buf, "%s%s%s", tmpdir,
     62 	    (tmpdir[strlen(tmpdir) - 1] == '/') ? "" : "/", TRAILER);
     63 	if (buf == NULL)
     64 		return (NULL);
     65 
     66 //	sigfillset(&set);
     67 //	(void)_sigprocmask(SIG_BLOCK, &set, &oset);
     68 
     69 	fd = mkstemp(buf);
     70 	if (fd != -1)
     71 		(void)unlink(buf);
     72 
     73 	free(buf);
     74 
     75 //	(void)_sigprocmask(SIG_SETMASK, &oset, NULL);
     76 
     77 	if (fd == -1)
     78 		return (NULL);
     79 
     80 	if ((fp = fdopen(fd, "w+")) == NULL) {
     81 		sverrno = errno;
     82 		(void)close(fd);
     83 		errno = sverrno;
     84 		return (NULL);
     85 	}
     86 	return (fp);
     87 }