| 1 | /*
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| 2 | * Copyright (c) 1983, 1992, 1993
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| 3 | * The Regents of the University of California. All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | * 1. Redistributions of source code must retain the above copyright
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| 9 | * notice, this list of conditions and the following disclaimer.
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer in the
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| 12 | * documentation and/or other materials provided with the distribution.
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| 13 | * 4. Neither the name of the University nor the names of its contributors
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| 14 | * may be used to endorse or promote products derived from this software
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| 15 | * without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 27 | * SUCH DAMAGE.
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| 28 | */
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| 29 |
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| 30 | #if 0
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| 31 | #ifndef lint
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| 32 | static char const copyright[] =
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| 33 | "@(#) Copyright (c) 1983, 1992, 1993\n\
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| 34 | The Regents of the University of California. All rights reserved.\n";
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| 35 | #endif /* not lint */
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| 36 |
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| 37 | #ifndef lint
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| 38 | static char sccsid[] = "@(#)mkdir.c 8.2 (Berkeley) 1/25/94";
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| 39 | #endif /* not lint */
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| 40 | #include <sys/cdefs.h>
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| 41 | __FBSDID("$FreeBSD: src/bin/mkdir/mkdir.c,v 1.28 2004/04/06 20:06:48 markm Exp $");
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| 42 | #endif
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| 43 |
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| 44 | #include <sys/types.h>
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| 45 | #include <sys/stat.h>
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| 46 |
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| 47 | #include "err.h"
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| 48 | #include <errno.h>
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| 49 | #ifndef _MSC_VER
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| 50 | # include <libgen.h>
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| 51 | #endif
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| 52 | #include <stdio.h>
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| 53 | #include <stdlib.h>
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| 54 | #include <string.h>
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| 55 | #include <sysexits.h>
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| 56 | #include <unistd.h>
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| 57 |
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| 58 | #ifdef __sun__
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| 59 | # include "getopt.h"
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| 60 | #endif
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| 61 | #ifdef _MSC_VER
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| 62 | # include <malloc.h>
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| 63 | # include "mscfakes.h"
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| 64 | #endif
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| 65 |
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| 66 | extern void * setmode(const char *p);
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| 67 | extern mode_t getmode(const void *bbox, mode_t omode);
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| 68 |
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| 69 | static int build(char *, mode_t);
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| 70 | static int usage(void);
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| 71 |
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| 72 | static int vflag;
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| 73 |
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| 74 | int
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| 75 | kmk_builtin_mkdir(int argc, char *argv[])
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| 76 | {
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| 77 | int ch, exitval, success, pflag;
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| 78 | mode_t omode, *set = (mode_t *)NULL;
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| 79 | char *mode;
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| 80 |
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| 81 | omode = pflag = 0;
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| 82 | mode = NULL;
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| 83 |
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| 84 | /* reinitialize globals */
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| 85 | vflag = 0;
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| 86 |
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| 87 | /* kmk: reset getopt and set progname */
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| 88 | g_progname = argv[0];
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| 89 | opterr = 1;
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| 90 | optarg = NULL;
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| 91 | optopt = 0;
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| 92 | optind = 0; /* init */
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| 93 | while ((ch = getopt(argc, argv, "m:pv")) != -1)
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| 94 | switch(ch) {
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| 95 | case 'm':
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| 96 | mode = optarg;
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| 97 | break;
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| 98 | case 'p':
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| 99 | pflag = 1;
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| 100 | break;
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| 101 | case 'v':
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| 102 | vflag = 1;
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| 103 | break;
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| 104 | case '?':
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| 105 | default:
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| 106 | return usage();
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| 107 | }
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| 108 |
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| 109 | argc -= optind;
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| 110 | argv += optind;
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| 111 | if (argv[0] == NULL)
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| 112 | return usage();
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| 113 |
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| 114 | if (mode == NULL) {
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| 115 | omode = S_IRWXU | S_IRWXG | S_IRWXO;
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| 116 | } else {
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| 117 | if ((set = setmode(mode)) == NULL)
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| 118 | return errx(1, "invalid file mode: %s", mode);
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| 119 | omode = getmode(set, S_IRWXU | S_IRWXG | S_IRWXO);
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| 120 | free(set);
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| 121 | }
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| 122 |
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| 123 | for (exitval = 0; *argv != NULL; ++argv) {
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| 124 | success = 1;
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| 125 | if (pflag) {
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| 126 | if (build(*argv, omode))
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| 127 | success = 0;
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| 128 | } else if (mkdir(*argv, omode) < 0) {
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| 129 | if (errno == ENOTDIR || errno == ENOENT)
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| 130 | warn("%s", dirname(*argv));
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| 131 | else
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| 132 | warn("%s", *argv);
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| 133 | success = 0;
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| 134 | } else if (vflag)
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| 135 | (void)printf("%s\n", *argv);
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| 136 |
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| 137 | if (!success)
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| 138 | exitval = 1;
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| 139 | /*
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| 140 | * The mkdir() and umask() calls both honor only the low
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| 141 | * nine bits, so if you try to set a mode including the
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| 142 | * sticky, setuid, setgid bits you lose them. Don't do
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| 143 | * this unless the user has specifically requested a mode,
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| 144 | * as chmod will (obviously) ignore the umask.
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| 145 | */
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| 146 | if (success && mode != NULL && chmod(*argv, omode) == -1) {
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| 147 | warn("%s", *argv);
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| 148 | exitval = 1;
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| 149 | }
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| 150 | }
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| 151 | return exitval;
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| 152 | }
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| 153 |
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| 154 | static int
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| 155 | build(char *path, mode_t omode)
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| 156 | {
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| 157 | struct stat sb;
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| 158 | mode_t numask, oumask;
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| 159 | int first, last, retval;
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| 160 | char *p;
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| 161 |
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| 162 | const size_t len = strlen(path);
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| 163 | p = alloca(len + 1);
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| 164 | path = memcpy(p, path, len + 1);
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| 165 |
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| 166 | #if defined(_MSC_VER) || defined(__EMX__)
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| 167 | p = strchr(path, '\\');
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| 168 | while (p) {
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| 169 | *p++ = '/';
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| 170 | p = strchr(p, '\\');
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| 171 | }
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| 172 | #endif
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| 173 |
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| 174 | p = path;
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| 175 | oumask = 0;
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| 176 | retval = 0;
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| 177 | #if defined(_MSC_VER) || defined(__EMX__)
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| 178 | if ( ( (p[0] >= 'A' && p[0] <= 'Z')
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| 179 | || (p[0] >= 'a' && p[0] <= 'z'))
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| 180 | && p[1] == ':')
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| 181 | p += 2;
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| 182 | else if ( p[0] == '/'
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| 183 | && p[1] == '/'
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| 184 | && p[2] != '/')
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| 185 | {
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| 186 | char *p2;
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| 187 | p += 2;
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| 188 | p2 = strchr(p, '/');
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| 189 | if (p2)
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| 190 | p = p2 + 1;
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| 191 | }
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| 192 | #endif
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| 193 | if (p[0] == '/') /* Skip leading '/'. */
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| 194 | ++p;
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| 195 | for (first = 1, last = 0; !last ; ++p) {
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| 196 | if (p[0] == '\0')
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| 197 | last = 1;
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| 198 | else if (p[0] != '/')
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| 199 | continue;
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| 200 | *p = '\0';
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| 201 | if (!last && p[1] == '\0')
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| 202 | last = 1;
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| 203 | if (first) {
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| 204 | /*
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| 205 | * POSIX 1003.2:
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| 206 | * For each dir operand that does not name an existing
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| 207 | * directory, effects equivalent to those cased by the
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| 208 | * following command shall occcur:
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| 209 | *
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| 210 | * mkdir -p -m $(umask -S),u+wx $(dirname dir) &&
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| 211 | * mkdir [-m mode] dir
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| 212 | *
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| 213 | * We change the user's umask and then restore it,
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| 214 | * instead of doing chmod's.
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| 215 | */
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| 216 | oumask = umask(0);
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| 217 | numask = oumask & ~(S_IWUSR | S_IXUSR);
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| 218 | (void)umask(numask);
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| 219 | first = 0;
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| 220 | }
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| 221 | if (last)
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| 222 | (void)umask(oumask);
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| 223 | if (mkdir(path, last ? omode : S_IRWXU | S_IRWXG | S_IRWXO) < 0) {
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| 224 | if (errno == EEXIST || errno == EISDIR) {
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| 225 | if (stat(path, &sb) < 0) {
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| 226 | warn("%s", path);
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| 227 | retval = 1;
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| 228 | break;
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| 229 | } else if (!S_ISDIR(sb.st_mode)) {
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| 230 | if (last)
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| 231 | errno = EEXIST;
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| 232 | else
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| 233 | errno = ENOTDIR;
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| 234 | warn("%s", path);
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| 235 | retval = 1;
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| 236 | break;
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| 237 | }
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| 238 | } else {
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| 239 | warn("%s", path);
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| 240 | retval = 1;
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| 241 | break;
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| 242 | }
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| 243 | } else if (vflag)
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| 244 | printf("%s\n", path);
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| 245 | if (!last)
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| 246 | *p = '/';
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| 247 | }
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| 248 | if (!first && !last)
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| 249 | (void)umask(oumask);
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| 250 | return (retval);
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| 251 | }
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| 252 |
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| 253 | static int
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| 254 | usage(void)
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| 255 | {
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| 256 |
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| 257 | (void)fprintf(stderr, "usage: mkdir [-pv] [-m mode] directory ...\n");
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| 258 | return EX_USAGE;
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| 259 | }
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