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 34 #ifndef lint 35 static char copyright[] = 36 "@(#) Copyright (c) 1983, 1992, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 static char sccsid[] = "@(#)mkdir.c 8.2 (Berkeley) 1/25/94"; 42 #endif /* not lint */ 43 44 #include <sys/types.h> 45 #include <sys/stat.h> 46 47 #include <err.h> 48 #include <errno.h> 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <string.h> 52 #include <unistd.h> 53 54 int build __P((char *)); 55 void usage __P((void)); 56 57 int 58 main(argc, argv) 59 int argc; 60 char *argv[]; 61 { 62 int ch, exitval, oct, omode, pflag; 63 mode_t *set; 64 char *ep, *mode; 65 66 pflag = 0; 67 mode = NULL; 68 while ((ch = getopt(argc, argv, "m:p")) != EOF) 69 switch(ch) { 70 case 'p': 71 pflag = 1; 72 break; 73 case 'm': 74 mode = optarg; 75 break; 76 case '?': 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 oct = 1; 89 } else if (*mode >= '0' && *mode <= '7') { 90 omode = (int)strtol(mode, &ep, 8); 91 if (omode < 0 || *ep) 92 errx(1, "invalid file mode: %s", mode); 93 oct = 1; 94 } else { 95 if ((set = setmode(mode)) == NULL) 96 errx(1, "invalid file mode: %s", mode); 97 oct = 0; 98 } 99 100 for (exitval = 0; *argv != NULL; ++argv) { 101 if (pflag && build(*argv)) { 102 exitval = 1; 103 continue; 104 } 105 if (mkdir(*argv, oct ? 106 omode : getmode(set, S_IRWXU | S_IRWXG | S_IRWXO)) < 0) { 107 warn("%s", *argv); 108 exitval = 1; 109 } 110 } 111 exit(exitval); 112 } 113 114 int 115 build(path) 116 char *path; 117 { 118 struct stat sb; 119 mode_t numask, oumask; 120 int first; 121 char *p; 122 123 p = path; 124 if (p[0] == '/') /* Skip leading '/'. */ 125 ++p; 126 for (first = 1;; ++p) { 127 if (p[0] == '\0' || p[0] == '/' && p[1] == '\0') 128 break; 129 if (p[0] != '/') 130 continue; 131 *p = '\0'; 132 if (first) { 133 /* 134 * POSIX 1003.2: 135 * For each dir operand that does not name an existing 136 * directory, effects equivalent to those cased by the 137 * following command shall occcur: 138 * 139 * mkdir -p -m $(umask -S),u+wx $(dirname dir) && 140 * mkdir [-m mode] dir 141 * 142 * We change the user's umask and then restore it, 143 * instead of doing chmod's. 144 */ 145 oumask = umask(0); 146 numask = oumask & ~(S_IWUSR | S_IXUSR); 147 (void)umask(numask); 148 first = 0; 149 } 150 if (stat(path, &sb)) { 151 if (errno != ENOENT || 152 mkdir(path, S_IRWXU | S_IRWXG | S_IRWXO) < 0) { 153 warn("%s", path); 154 return (1); 155 } 156 } 157 *p = '/'; 158 } 159 if (!first) 160 (void)umask(oumask); 161 return (0); 162 } 163 164 void 165 usage() 166 { 167 (void)fprintf(stderr, "usage: mkdir [-p] [-m mode] directory ...\n"); 168 exit (1); 169 } 170