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 * $Id: mkdir.c,v 1.9 1997/03/28 15:24:25 imp Exp $ 34 */ 35 36 #ifndef lint 37 static char const copyright[] = 38 "@(#) Copyright (c) 1983, 1992, 1993\n\ 39 The Regents of the University of California. All rights reserved.\n"; 40 #endif /* not lint */ 41 42 #ifndef lint 43 static char const sccsid[] = "@(#)mkdir.c 8.2 (Berkeley) 1/25/94"; 44 #endif /* not lint */ 45 46 #include <sys/types.h> 47 #include <sys/stat.h> 48 49 #include <err.h> 50 #include <errno.h> 51 #include <stdio.h> 52 #include <stdlib.h> 53 #include <string.h> 54 #include <unistd.h> 55 56 int build __P((char *, mode_t)); 57 void usage __P((void)); 58 59 int 60 main(argc, argv) 61 int argc; 62 char *argv[]; 63 { 64 int ch, exitval, omode, pflag; 65 mode_t *set = (mode_t *)NULL; 66 char *mode; 67 68 omode = pflag = 0; 69 mode = NULL; 70 while ((ch = getopt(argc, argv, "m:p")) != -1) 71 switch(ch) { 72 case 'p': 73 pflag = 1; 74 break; 75 case 'm': 76 mode = optarg; 77 break; 78 case '?': 79 default: 80 usage(); 81 } 82 83 argc -= optind; 84 argv += optind; 85 if (argv[0] == NULL) 86 usage(); 87 88 if (mode == NULL) { 89 omode = S_IRWXU | S_IRWXG | S_IRWXO; 90 } else { 91 if ((set = setmode(mode)) == NULL) 92 errx(1, "invalid file mode: %s", mode); 93 omode = getmode(set, S_IRWXU | S_IRWXG | S_IRWXO); 94 } 95 96 for (exitval = 0; *argv != NULL; ++argv) { 97 if (pflag) { 98 if (build(*argv, omode)) 99 exitval = 1; 100 continue; 101 } 102 if (mkdir(*argv, omode) < 0) { 103 warn("%s", *argv); 104 exitval = 1; 105 } 106 } 107 exit(exitval); 108 } 109 110 int 111 build(path, omode) 112 char *path; 113 mode_t omode; 114 { 115 struct stat sb; 116 mode_t numask, oumask; 117 int first, last, retval; 118 char *p; 119 120 p = path; 121 oumask = 0; 122 retval = 0; 123 if (p[0] == '/') /* Skip leading '/'. */ 124 ++p; 125 for (first = 1, last = 0; !last ; ++p) { 126 if (p[0] == '\0') 127 last = 1; 128 else if (p[0] != '/') 129 continue; 130 *p = '\0'; 131 if (p[1] == '\0') 132 last = 1; 133 if (first) { 134 /* 135 * POSIX 1003.2: 136 * For each dir operand that does not name an existing 137 * directory, effects equivalent to those cased by the 138 * following command shall occcur: 139 * 140 * mkdir -p -m $(umask -S),u+wx $(dirname dir) && 141 * mkdir [-m mode] dir 142 * 143 * We change the user's umask and then restore it, 144 * instead of doing chmod's. 145 */ 146 oumask = umask(0); 147 numask = oumask & ~(S_IWUSR | S_IXUSR); 148 (void)umask(numask); 149 first = 0; 150 } 151 if (last) 152 (void)umask(oumask); 153 if (stat(path, &sb)) { 154 if (errno != ENOENT || 155 mkdir(path, last ? omode : 156 S_IRWXU | S_IRWXG | S_IRWXO) < 0) { 157 warn("%s", path); 158 retval = 1; 159 break; 160 } 161 } 162 else if ((sb.st_mode & S_IFMT) != S_IFDIR) { 163 if (last) 164 errno = EEXIST; 165 else 166 errno = ENOTDIR; 167 warn("%s", path); 168 retval = 1; 169 break; 170 } 171 *p = '/'; 172 } 173 if (!first && !last) 174 (void)umask(oumask); 175 return (retval); 176 } 177 178 void 179 usage() 180 { 181 (void)fprintf(stderr, "usage: mkdir [-p] [-m mode] directory ...\n"); 182 exit (1); 183 } 184