1 /* 2 * Copyright (c) 1983, 1992, 1993 3 * The Regents of the University of California. 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 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#) Copyright (c) 1983, 1992, 1993 The Regents of the University of California. All rights reserved. 34 * @(#)mkdir.c 8.2 (Berkeley) 1/25/94 35 * $FreeBSD: src/bin/mkdir/mkdir.c,v 1.19.2.2 2001/08/01 04:42:37 obrien Exp $ 36 * $DragonFly: src/bin/mkdir/mkdir.c,v 1.6 2004/11/07 20:54:51 eirikn Exp $ 37 */ 38 39 #include <sys/types.h> 40 #include <sys/stat.h> 41 42 #include <err.h> 43 #include <errno.h> 44 #include <libgen.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <string.h> 48 #include <sysexits.h> 49 #include <unistd.h> 50 51 static int build(char *, mode_t); 52 static void usage(void); 53 54 int vflag; 55 56 int 57 main(int argc, char **argv) 58 { 59 int ch, exitval, success, pflag; 60 void *set; 61 mode_t omode; 62 char *mode; 63 64 omode = pflag = 0; 65 mode = NULL; 66 while ((ch = getopt(argc, argv, "m:pv")) != -1) 67 switch(ch) { 68 case 'm': 69 mode = optarg; 70 break; 71 case 'p': 72 pflag = 1; 73 break; 74 case 'v': 75 vflag = 1; 76 break; 77 default: 78 usage(); 79 } 80 81 argc -= optind; 82 argv += optind; 83 if (argv[0] == NULL) 84 usage(); 85 86 if (mode == NULL) { 87 omode = S_IRWXU | S_IRWXG | S_IRWXO; 88 } else { 89 errno = 0; 90 if ((set = setmode(mode)) == NULL) { 91 if (!errno) 92 errx(1, "invalid file mode: %s", mode); 93 else 94 /* A malloc(3) error, not a invaild file mode. */ 95 err(1, "setmode failed"); 96 } 97 omode = getmode(set, S_IRWXU | S_IRWXG | S_IRWXO); 98 free(set); 99 } 100 101 for (exitval = 0; *argv != NULL; ++argv) { 102 success = 1; 103 if (pflag) { 104 if (build(*argv, omode)) 105 success = 0; 106 } else if (mkdir(*argv, omode) < 0) { 107 if (errno == ENOTDIR || errno == ENOENT) 108 warn("%s", dirname(*argv)); 109 else 110 warn("%s", *argv); 111 success = 0; 112 } else if (vflag) 113 printf("%s\n", *argv); 114 115 if (!success) 116 exitval = 1; 117 /* 118 * The mkdir() and umask() calls both honor only the low 119 * nine bits, so if you try to set a mode including the 120 * sticky, setuid, setgid bits you lose them. Don't do 121 * this unless the user has specifically requested a mode, 122 * as chmod will (obviously) ignore the umask. 123 */ 124 if (success && mode != NULL && chmod(*argv, omode) == -1) { 125 warn("%s", *argv); 126 exitval = 1; 127 } 128 } 129 exit(exitval); 130 } 131 132 static int 133 build(char *path, mode_t omode) 134 { 135 struct stat sb; 136 mode_t numask, oumask; 137 int first, last, retval; 138 char *p; 139 140 p = path; 141 oumask = 0; 142 retval = 0; 143 if (p[0] == '/') /* Skip leading '/'. */ 144 ++p; 145 for (first = 1, last = 0; !last ; ++p) { 146 if (p[0] == '\0') 147 last = 1; 148 else if (p[0] != '/') 149 continue; 150 *p = '\0'; 151 if (p[1] == '\0') 152 last = 1; 153 if (first) { 154 /* 155 * POSIX 1003.2: 156 * For each dir operand that does not name an existing 157 * directory, effects equivalent to those cased by the 158 * following command shall occcur: 159 * 160 * mkdir -p -m $(umask -S),u+wx $(dirname dir) && 161 * mkdir [-m mode] dir 162 * 163 * We change the user's umask and then restore it, 164 * instead of doing chmod's. 165 */ 166 oumask = umask(0); 167 numask = oumask & ~(S_IWUSR | S_IXUSR); 168 umask(numask); 169 first = 0; 170 } 171 if (last) 172 umask(oumask); 173 if (stat(path, &sb)) { 174 if (errno != ENOENT || 175 mkdir(path, last ? omode : 176 S_IRWXU | S_IRWXG | S_IRWXO) < 0) { 177 warn("%s", path); 178 retval = 1; 179 break; 180 } else if (vflag) 181 printf("%s\n", path); 182 } 183 else if ((sb.st_mode & S_IFMT) != S_IFDIR) { 184 if (last) 185 errno = EEXIST; 186 else 187 errno = ENOTDIR; 188 warn("%s", path); 189 retval = 1; 190 break; 191 } 192 if (!last) 193 *p = '/'; 194 } 195 if (!first && !last) 196 umask(oumask); 197 return (retval); 198 } 199 200 static void 201 usage(void) 202 { 203 204 fprintf(stderr, "usage: mkdir [-pv] [-m mode] directory ...\n"); 205 exit (EX_USAGE); 206 } 207