1 /*- 2 * Copyright (c) 1994, 1995, 1996, 1998 Peter Wemm <peter@netplex.com.au> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: src/usr.bin/mktemp/mktemp.c,v 1.2.6.1 2000/10/15 11:37:43 alex Exp $ 27 * $DragonFly: src/usr.bin/mktemp/mktemp.c,v 1.4 2005/01/01 21:10:43 cpressey Exp $ 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 static void usage(void); 47 48 int 49 main(int argc, char **argv) 50 { 51 int c, fd, ret; 52 char *tmpdir; 53 const char *prefix; 54 char *name; 55 int dflag, qflag, tflag, uflag; 56 57 ret = dflag = qflag = tflag = uflag = 0; 58 prefix = "mktemp"; 59 name = NULL; 60 61 while ((c = getopt(argc, argv, "dqt:u")) != -1) 62 switch (c) { 63 case 'd': 64 dflag++; 65 break; 66 67 case 'q': 68 qflag++; 69 break; 70 71 case 't': 72 prefix = optarg; 73 tflag++; 74 break; 75 76 case 'u': 77 uflag++; 78 break; 79 80 default: 81 usage(); 82 } 83 84 argc -= optind; 85 argv += optind; 86 87 if (!tflag && argc < 1) { 88 tflag = 1; 89 prefix = "tmp"; 90 } 91 92 if (tflag) { 93 tmpdir = getenv("TMPDIR"); 94 if (tmpdir == NULL) 95 asprintf(&name, "%s%s.XXXXXXXX", _PATH_TMP, prefix); 96 else 97 asprintf(&name, "%s/%s.XXXXXXXX", tmpdir, prefix); 98 /* if this fails, the program is in big trouble already */ 99 if (name == NULL) { 100 if (qflag) 101 return (1); 102 else 103 errx(1, "cannot generate template"); 104 } 105 } 106 107 /* generate all requested files */ 108 while (name != NULL || argc > 0) { 109 if (name == NULL) { 110 name = strdup(argv[0]); 111 argv++; 112 argc--; 113 } 114 115 if (dflag) { 116 if (mkdtemp(name) == NULL) { 117 ret = 1; 118 if (!qflag) 119 warn("mkdtemp failed on %s", name); 120 } else { 121 printf("%s\n", name); 122 if (uflag) 123 rmdir(name); 124 } 125 } else { 126 fd = mkstemp(name); 127 if (fd < 0) { 128 ret = 1; 129 if (!qflag) 130 warn("mkstemp failed on %s", name); 131 } else { 132 close(fd); 133 if (uflag) 134 unlink(name); 135 printf("%s\n", name); 136 } 137 } 138 if (name) 139 free(name); 140 name = NULL; 141 } 142 return (ret); 143 } 144 145 static void 146 usage(void) 147 { 148 fprintf(stderr, 149 "usage: mktemp [-d] [-q] [-t prefix] [-u] template ...\n"); 150 fprintf(stderr, 151 " mktemp [-d] [-q] [-u] -t prefix \n"); 152 exit (1); 153 } 154