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 const 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 #if 0 42 static char sccsid[] = "@(#)mkdir.c 8.2 (Berkeley) 1/25/94"; 43 #endif 44 static const char rcsid[] = 45 "$FreeBSD$"; 46 #endif /* not lint */ 47 48 #include <sys/types.h> 49 #include <sys/stat.h> 50 51 #include <err.h> 52 #include <errno.h> 53 #include <stdio.h> 54 #include <stdlib.h> 55 #include <string.h> 56 #include <sysexits.h> 57 #include <unistd.h> 58 59 int build __P((char *, mode_t)); 60 void usage __P((void)); 61 62 int vflag; 63 64 int 65 main(argc, argv) 66 int argc; 67 char *argv[]; 68 { 69 int ch, exitval, success, omode, pflag; 70 mode_t *set = (mode_t *)NULL; 71 char *mode; 72 73 omode = pflag = 0; 74 mode = NULL; 75 while ((ch = getopt(argc, argv, "m:pv")) != -1) 76 switch(ch) { 77 case 'm': 78 mode = optarg; 79 break; 80 case 'p': 81 pflag = 1; 82 break; 83 case 'v': 84 vflag = 1; 85 break; 86 case '?': 87 default: 88 usage(); 89 } 90 91 argc -= optind; 92 argv += optind; 93 if (argv[0] == NULL) 94 usage(); 95 96 if (mode == NULL) { 97 omode = S_IRWXU | S_IRWXG | S_IRWXO; 98 } else { 99 if ((set = setmode(mode)) == NULL) 100 errx(1, "invalid file mode: %s", mode); 101 omode = getmode(set, S_IRWXU | S_IRWXG | S_IRWXO); 102 free(set); 103 } 104 105 for (exitval = 0; *argv != NULL; ++argv) { 106 success = 1; 107 if (pflag) { 108 if (build(*argv, omode)) 109 success = 0; 110 } else if (mkdir(*argv, omode) < 0) { 111 warn("%s", *argv); 112 success = 0; 113 } else if (vflag) 114 (void)printf("%s\n", *argv); 115 116 if (!success) 117 exitval = 1; 118 /* 119 * The mkdir() and umask() calls both honor only the low 120 * nine bits, so if you try to set a mode including the 121 * sticky, setuid, setgid bits you lose them. Don't do 122 * this unless the user has specifically requested a mode, 123 * as chmod will (obviously) ignore the umask. 124 */ 125 if (success && mode != NULL && chmod(*argv, omode) == -1) { 126 warn("%s", *argv); 127 exitval = 1; 128 } 129 } 130 exit(exitval); 131 } 132 133 int 134 build(path, omode) 135 char *path; 136 mode_t omode; 137 { 138 struct stat sb; 139 mode_t numask, oumask; 140 int first, last, retval; 141 char *p; 142 143 p = path; 144 oumask = 0; 145 retval = 0; 146 if (p[0] == '/') /* Skip leading '/'. */ 147 ++p; 148 for (first = 1, last = 0; !last ; ++p) { 149 if (p[0] == '\0') 150 last = 1; 151 else if (p[0] != '/') 152 continue; 153 *p = '\0'; 154 if (p[1] == '\0') 155 last = 1; 156 if (first) { 157 /* 158 * POSIX 1003.2: 159 * For each dir operand that does not name an existing 160 * directory, effects equivalent to those cased by the 161 * following command shall occcur: 162 * 163 * mkdir -p -m $(umask -S),u+wx $(dirname dir) && 164 * mkdir [-m mode] dir 165 * 166 * We change the user's umask and then restore it, 167 * instead of doing chmod's. 168 */ 169 oumask = umask(0); 170 numask = oumask & ~(S_IWUSR | S_IXUSR); 171 (void)umask(numask); 172 first = 0; 173 } 174 if (last) 175 (void)umask(oumask); 176 if (stat(path, &sb)) { 177 if (errno != ENOENT || 178 mkdir(path, last ? omode : 179 S_IRWXU | S_IRWXG | S_IRWXO) < 0) { 180 warn("%s", path); 181 retval = 1; 182 break; 183 } else if (vflag) 184 printf("%s\n", path); 185 } 186 else if ((sb.st_mode & S_IFMT) != S_IFDIR) { 187 if (last) 188 errno = EEXIST; 189 else 190 errno = ENOTDIR; 191 warn("%s", path); 192 retval = 1; 193 break; 194 } 195 if (!last) 196 *p = '/'; 197 } 198 if (!first && !last) 199 (void)umask(oumask); 200 return (retval); 201 } 202 203 void 204 usage() 205 { 206 207 (void)fprintf(stderr, "usage: mkdir [-pv] [-m mode] directory ...\n"); 208 exit (EX_USAGE); 209 } 210