1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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 <err.h> 40 #include <paths.h> 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <string.h> 44 #include <unistd.h> 45 46 #ifndef lint 47 static const char rcsid[] = 48 "$FreeBSD$"; 49 #endif /* not lint */ 50 51 static void usage(void); 52 53 int 54 main(int argc, char **argv) 55 { 56 int c, fd, ret; 57 char *tmpdir; 58 const char *prefix; 59 char *name; 60 int dflag, qflag, tflag, uflag; 61 62 ret = dflag = qflag = tflag = uflag = 0; 63 prefix = "mktemp"; 64 name = NULL; 65 66 while ((c = getopt(argc, argv, "dqt:u")) != -1) 67 switch (c) { 68 case 'd': 69 dflag++; 70 break; 71 72 case 'q': 73 qflag++; 74 break; 75 76 case 't': 77 prefix = optarg; 78 tflag++; 79 break; 80 81 case 'u': 82 uflag++; 83 break; 84 85 default: 86 usage(); 87 } 88 89 argc -= optind; 90 argv += optind; 91 92 if (!tflag && argc < 1) { 93 tflag = 1; 94 prefix = "tmp"; 95 } 96 97 if (tflag) { 98 tmpdir = getenv("TMPDIR"); 99 if (tmpdir == NULL) 100 asprintf(&name, "%s%s.XXXXXXXX", _PATH_TMP, prefix); 101 else 102 asprintf(&name, "%s/%s.XXXXXXXX", tmpdir, prefix); 103 /* if this fails, the program is in big trouble already */ 104 if (name == NULL) { 105 if (qflag) 106 return (1); 107 else 108 errx(1, "cannot generate template"); 109 } 110 } 111 112 /* generate all requested files */ 113 while (name != NULL || argc > 0) { 114 if (name == NULL) { 115 name = strdup(argv[0]); 116 argv++; 117 argc--; 118 } 119 120 if (dflag) { 121 if (mkdtemp(name) == NULL) { 122 ret = 1; 123 if (!qflag) 124 warn("mkdtemp failed on %s", name); 125 } else { 126 printf("%s\n", name); 127 if (uflag) 128 rmdir(name); 129 } 130 } else { 131 fd = mkstemp(name); 132 if (fd < 0) { 133 ret = 1; 134 if (!qflag) 135 warn("mkstemp failed on %s", name); 136 } else { 137 close(fd); 138 if (uflag) 139 unlink(name); 140 printf("%s\n", name); 141 } 142 } 143 if (name) 144 free(name); 145 name = NULL; 146 } 147 return (ret); 148 } 149 150 static void 151 usage(void) 152 { 153 fprintf(stderr, 154 "usage: mktemp [-d] [-q] [-t prefix] [-u] template ...\n"); 155 fprintf(stderr, 156 " mktemp [-d] [-q] [-u] -t prefix \n"); 157 exit (1); 158 } 159