1 /* $NetBSD: tmp.c,v 1.8 2001/02/23 08:59:49 jdolecek Exp $ */ 2 3 /*- 4 * Copyright (c) 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Peter McIlroy. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 */ 38 39 #include <ctype.h> 40 41 #ifndef lint 42 __RCSID("$NetBSD: tmp.c,v 1.8 2001/02/23 08:59:49 jdolecek Exp $"); 43 __SCCSID("@(#)tmp.c 8.1 (Berkeley) 6/6/93"); 44 #endif /* not lint */ 45 46 #include <sys/param.h> 47 48 #include <err.h> 49 #include <errno.h> 50 #include <limits.h> 51 #include <signal.h> 52 #include <stdio.h> 53 #include <stdlib.h> 54 #include <string.h> 55 #include <unistd.h> 56 57 #include "sort.h" 58 #include "pathnames.h" 59 60 #define _NAME_TMP "sort.XXXXXXXX" 61 62 FILE * 63 ftmp() 64 { 65 sigset_t set, oset; 66 FILE *fp; 67 int fd; 68 char pathb[MAXPATHLEN], *path; 69 70 path = pathb; 71 (void)snprintf(path, sizeof(pathb), "%s%s%s", tmpdir, 72 (tmpdir[strlen(tmpdir)-1] != '/') ? "/" : "", _NAME_TMP); 73 74 sigfillset(&set); 75 (void)sigprocmask(SIG_BLOCK, &set, &oset); 76 if ((fd = mkstemp(path)) < 0) 77 err(2, "ftmp: mkstemp(\"%s\")", path); 78 if (!(fp = fdopen(fd, "w+"))) 79 err(2, "ftmp: fdopen(\"%s\")", path); 80 (void)unlink(path); 81 82 (void)sigprocmask(SIG_SETMASK, &oset, NULL); 83 return (fp); 84 } 85