1 /* $NetBSD: mktemp.c,v 1.4 2002/04/01 13:54:01 bjh21 Exp $ */ 2 3 /*- 4 * Copyright (c) 1994, 1995, 1996, 1998 Peter Wemm <peter@netplex.com.au> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 */ 29 30 /* 31 * This program was originally written long ago, originally for a non 32 * BSD-like OS without mkstemp(). It's been modified over the years 33 * to use mkstemp() rather than the original O_CREAT|O_EXCL/fstat/lstat 34 * etc style hacks. 35 * A cleanup, misc options and mkdtemp() calls were added to try and work 36 * more like the OpenBSD version - which was first to publish the interface. 37 */ 38 39 #include <sys/cdefs.h> 40 #include <err.h> 41 #include <paths.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <unistd.h> 46 47 #ifndef lint 48 #if 0 49 static const char rcsid[] = 50 "$FreeBSD: src/usr.bin/mktemp/mktemp.c,v 1.2 1998/05/05 06:13:47 charnier Exp $"; 51 #else 52 __RCSID("$NetBSD: mktemp.c,v 1.4 2002/04/01 13:54:01 bjh21 Exp $"); 53 #endif 54 #endif /* not lint */ 55 56 static void usage __P((void)); 57 58 int 59 main(int argc, char **argv) 60 { 61 int c, fd, ret; 62 char *tmpdir, *prefix; 63 char *name; 64 int dflag, qflag, tflag, uflag; 65 66 ret = dflag = qflag = tflag = uflag = 0; 67 prefix = "mktemp"; 68 name = NULL; 69 70 while ((c = getopt(argc, argv, "dqt:u")) != -1) 71 switch (c) { 72 case 'd': 73 dflag++; 74 break; 75 76 case 'q': 77 qflag++; 78 break; 79 80 case 't': 81 prefix = optarg; 82 tflag++; 83 break; 84 85 case 'u': 86 uflag++; 87 break; 88 89 default: 90 usage(); 91 } 92 93 argc -= optind; 94 argv += optind; 95 96 if (tflag) { 97 tmpdir = getenv("TMPDIR"); 98 if (tmpdir == NULL) 99 asprintf(&name, "%s%s.XXXXXXXX", _PATH_TMP, prefix); 100 else 101 asprintf(&name, "%s/%s.XXXXXXXX", tmpdir, prefix); 102 /* if this fails, the program is in big trouble already */ 103 if (name == NULL) { 104 if (qflag) 105 return (1); 106 else 107 errx(1, "cannot generate template"); 108 } 109 } else if (argc < 1) { 110 usage(); 111 } 112 113 /* generate all requested files */ 114 while (name != NULL || argc > 0) { 115 if (name == NULL) { 116 name = strdup(argv[0]); 117 argv++; 118 argc--; 119 } 120 121 if (dflag) { 122 if (mkdtemp(name) == NULL) { 123 ret = 1; 124 if (!qflag) 125 warn("mkdtemp failed on %s", name); 126 } else { 127 printf("%s\n", name); 128 if (uflag) 129 rmdir(name); 130 } 131 } else { 132 fd = mkstemp(name); 133 if (fd < 0) { 134 ret = 1; 135 if (!qflag) 136 warn("mkstemp failed on %s", name); 137 } else { 138 close(fd); 139 if (uflag) 140 unlink(name); 141 printf("%s\n", name); 142 } 143 } 144 if (name) 145 free(name); 146 name = NULL; 147 } 148 return (ret); 149 } 150 151 static void 152 usage() 153 { 154 fprintf(stderr, 155 "usage: mktemp [-d] [-q] [-t prefix] [-u] [template ...]\n"); 156 exit (1); 157 } 158