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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #if 0 31 #ifndef lint 32 static char const copyright[] = 33 "@(#) Copyright (c) 1983, 1992, 1993\n\ 34 The Regents of the University of California. All rights reserved.\n"; 35 #endif /* not lint */ 36 37 #ifndef lint 38 static char sccsid[] = "@(#)mkdir.c 8.2 (Berkeley) 1/25/94"; 39 #endif /* not lint */ 40 #endif 41 #include <sys/cdefs.h> 42 __FBSDID("$FreeBSD$"); 43 44 #include <sys/types.h> 45 #include <sys/stat.h> 46 47 #include <err.h> 48 #include <errno.h> 49 #include <libgen.h> 50 #include <stdio.h> 51 #include <stdlib.h> 52 #include <string.h> 53 #include <sysexits.h> 54 #include <unistd.h> 55 56 static int build(char *, mode_t); 57 static void usage(void); 58 59 int vflag; 60 61 int 62 main(int argc, char *argv[]) 63 { 64 int ch, exitval, success, pflag; 65 mode_t omode, *set = (mode_t *)NULL; 66 char *mode; 67 68 omode = pflag = 0; 69 mode = NULL; 70 while ((ch = getopt(argc, argv, "m:pv")) != -1) 71 switch(ch) { 72 case 'm': 73 mode = optarg; 74 break; 75 case 'p': 76 pflag = 1; 77 break; 78 case 'v': 79 vflag = 1; 80 break; 81 case '?': 82 default: 83 usage(); 84 } 85 86 argc -= optind; 87 argv += optind; 88 if (argv[0] == NULL) 89 usage(); 90 91 if (mode == NULL) { 92 omode = S_IRWXU | S_IRWXG | S_IRWXO; 93 } else { 94 if ((set = setmode(mode)) == NULL) 95 errx(1, "invalid file mode: %s", mode); 96 omode = getmode(set, S_IRWXU | S_IRWXG | S_IRWXO); 97 free(set); 98 } 99 100 for (exitval = 0; *argv != NULL; ++argv) { 101 success = 1; 102 if (pflag) { 103 if (build(*argv, omode)) 104 success = 0; 105 } else if (mkdir(*argv, omode) < 0) { 106 if (errno == ENOTDIR || errno == ENOENT) 107 warn("%s", dirname(*argv)); 108 else 109 warn("%s", *argv); 110 success = 0; 111 } else if (vflag) 112 (void)printf("%s\n", *argv); 113 114 if (!success) 115 exitval = 1; 116 /* 117 * The mkdir() and umask() calls both honor only the low 118 * nine bits, so if you try to set a mode including the 119 * sticky, setuid, setgid bits you lose them. Don't do 120 * this unless the user has specifically requested a mode, 121 * as chmod will (obviously) ignore the umask. 122 */ 123 if (success && mode != NULL && chmod(*argv, omode) == -1) { 124 warn("%s", *argv); 125 exitval = 1; 126 } 127 } 128 exit(exitval); 129 } 130 131 int 132 build(char *path, mode_t omode) 133 { 134 struct stat sb; 135 mode_t numask, oumask; 136 int first, last, retval; 137 char *p; 138 139 p = path; 140 oumask = 0; 141 retval = 0; 142 if (p[0] == '/') /* Skip leading '/'. */ 143 ++p; 144 for (first = 1, last = 0; !last ; ++p) { 145 if (p[0] == '\0') 146 last = 1; 147 else if (p[0] != '/') 148 continue; 149 *p = '\0'; 150 if (p[1] == '\0') 151 last = 1; 152 if (first) { 153 /* 154 * POSIX 1003.2: 155 * For each dir operand that does not name an existing 156 * directory, effects equivalent to those cased by the 157 * following command shall occcur: 158 * 159 * mkdir -p -m $(umask -S),u+wx $(dirname dir) && 160 * mkdir [-m mode] dir 161 * 162 * We change the user's umask and then restore it, 163 * instead of doing chmod's. 164 */ 165 oumask = umask(0); 166 numask = oumask & ~(S_IWUSR | S_IXUSR); 167 (void)umask(numask); 168 first = 0; 169 } 170 if (last) 171 (void)umask(oumask); 172 if (mkdir(path, last ? omode : S_IRWXU | S_IRWXG | S_IRWXO) < 0) { 173 if (errno == EEXIST || errno == EISDIR) { 174 if (stat(path, &sb) < 0) { 175 warn("%s", path); 176 retval = 1; 177 break; 178 } else if (!S_ISDIR(sb.st_mode)) { 179 if (last) 180 errno = EEXIST; 181 else 182 errno = ENOTDIR; 183 warn("%s", path); 184 retval = 1; 185 break; 186 } 187 } else { 188 warn("%s", path); 189 retval = 1; 190 break; 191 } 192 } else if (vflag) 193 printf("%s\n", path); 194 if (!last) 195 *p = '/'; 196 } 197 if (!first && !last) 198 (void)umask(oumask); 199 return (retval); 200 } 201 202 void 203 usage(void) 204 { 205 206 (void)fprintf(stderr, "usage: mkdir [-pv] [-m mode] directory ...\n"); 207 exit (EX_USAGE); 208 } 209