| 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 | } |