1 /* $OpenBSD: mkdir.c,v 1.14 2002/07/04 04:26:40 deraadt Exp $ */ 2 /* $NetBSD: mkdir.c,v 1.14 1995/06/25 21:59:21 mycroft Exp $ */ 3 4 /* 5 * Copyright (c) 1983, 1992, 1993 6 * The Regents of the University of California. All rights reserved. 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 #ifndef lint 38 static char copyright[] = 39 "@(#) Copyright (c) 1983, 1992, 1993\n\ 40 The Regents of the University of California. All rights reserved.\n"; 41 #endif /* not lint */ 42 43 #ifndef lint 44 #if 0 45 static char sccsid[] = "@(#)mkdir.c 8.2 (Berkeley) 1/25/94"; 46 #else 47 static char rcsid[] = "$OpenBSD: mkdir.c,v 1.14 2002/07/04 04:26:40 deraadt Exp $"; 48 #endif 49 #endif /* not lint */ 50 51 #include <sys/types.h> 52 #include <sys/stat.h> 53 54 #include <err.h> 55 #include <errno.h> 56 #include <locale.h> 57 #include <stdio.h> 58 #include <stdlib.h> 59 #include <string.h> 60 #include <unistd.h> 61 62 extern char *__progname; 63 64 int mkpath(char *, mode_t, mode_t); 65 void usage(void); 66 67 int 68 main(int argc, char *argv[]) 69 { 70 int ch, exitval, pflag; 71 mode_t *set; 72 mode_t mode, dir_mode; 73 74 setlocale(LC_ALL, ""); 75 76 /* 77 * The default file mode is a=rwx (0777) with selected permissions 78 * removed in accordance with the file mode creation mask. For 79 * intermediate path name components, the mode is the default modified 80 * by u+wx so that the subdirectories can always be created. 81 */ 82 mode = 0777 & ~umask(0); 83 dir_mode = mode | S_IWUSR | S_IXUSR; 84 85 pflag = 0; 86 while ((ch = getopt(argc, argv, "m:p")) != -1) 87 switch(ch) { 88 case 'p': 89 pflag = 1; 90 break; 91 case 'm': 92 if ((set = setmode(optarg)) == NULL) 93 errx(1, "invalid file mode: %s", optarg); 94 mode = getmode(set, S_IRWXU | S_IRWXG | S_IRWXO); 95 free(set); 96 break; 97 default: 98 usage(); 99 } 100 argc -= optind; 101 argv += optind; 102 103 if (*argv == NULL) 104 usage(); 105 106 for (exitval = 0; *argv != NULL; ++argv) { 107 char *slash; 108 109 /* Remove trailing slashes, per POSIX. */ 110 slash = strrchr(*argv, '\0'); 111 while (--slash > *argv && *slash == '/') 112 *slash = '\0'; 113 114 if (pflag) { 115 if (mkpath(*argv, mode, dir_mode) < 0) 116 exitval = 1; 117 } else { 118 if (mkdir(*argv, mode) < 0) { 119 warn("%s", *argv); 120 exitval = 1; 121 } else { 122 /* 123 * The mkdir() and umask() calls both honor only the low 124 * nine bits, so if you try to set a mode including the 125 * sticky, setuid, setgid bits you lose them. Don't do 126 * this unless the user has specifically requested a mode 127 * as chmod will (obviously) ignore the umask. 128 */ 129 if (mode > 0777 && chmod(*argv, mode) == -1) { 130 warn("%s", *argv); 131 exitval = 1; 132 } 133 } 134 } 135 } 136 exit(exitval); 137 } 138 139 /* 140 * mkpath -- create directories. 141 * path - path 142 * mode - file mode of terminal directory 143 * dir_mode - file mode of intermediate directories 144 */ 145 int 146 mkpath(char *path, mode_t mode, mode_t dir_mode) 147 { 148 struct stat sb; 149 char *slash; 150 int done = 0; 151 152 slash = path; 153 154 while (!done) { 155 slash += strspn(slash, "/"); 156 slash += strcspn(slash, "/"); 157 158 done = (*slash == '\0'); 159 *slash = '\0'; 160 161 if (stat(path, &sb)) { 162 if (errno != ENOENT || 163 (mkdir(path, done ? mode : dir_mode) && 164 errno != EEXIST)) { 165 warn("%s", path); 166 return (-1); 167 } 168 } else if (!S_ISDIR(sb.st_mode)) { 169 warnx("%s: %s", path, strerror(ENOTDIR)); 170 return (-1); 171 } 172 173 *slash = '/'; 174 } 175 176 return (0); 177 } 178 179 void 180 usage(void) 181 { 182 (void)fprintf(stderr, "usage: %s [-p] [-m mode] dirname ...\n", __progname); 183 exit(1); 184 } 185