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 <libgen.h> 54 #include <stdio.h> 55 #include <stdlib.h> 56 #include <string.h> 57 #include <sysexits.h> 58 #include <unistd.h> 59 60 int build __P((char *, mode_t)); 61 void usage __P((void)); 62 63 int vflag; 64 65 int 66 main(argc, argv) 67 int argc; 68 char *argv[]; 69 { 70 int ch, exitval, success, omode, pflag; 71 mode_t *set = (mode_t *)NULL; 72 char *mode; 73 74 omode = pflag = 0; 75 mode = NULL; 76 while ((ch = getopt(argc, argv, "m:pv")) != -1) 77 switch(ch) { 78 case 'm': 79 mode = optarg; 80 break; 81 case 'p': 82 pflag = 1; 83 break; 84 case 'v': 85 vflag = 1; 86 break; 87 case '?': 88 default: 89 usage(); 90 } 91 92 argc -= optind; 93 argv += optind; 94 if (argv[0] == NULL) 95 usage(); 96 97 if (mode == NULL) { 98 omode = S_IRWXU | S_IRWXG | S_IRWXO; 99 } else { 100 if ((set = setmode(mode)) == NULL) 101 errx(1, "invalid file mode: %s", mode); 102 omode = getmode(set, S_IRWXU | S_IRWXG | S_IRWXO); 103 free(set); 104 } 105 106 for (exitval = 0; *argv != NULL; ++argv) { 107 success = 1; 108 if (pflag) { 109 if (build(*argv, omode)) 110 success = 0; 111 } else if (mkdir(*argv, omode) < 0) { 112 if (errno == ENOTDIR || errno == ENOENT) 113 warn("%s", dirname(*argv)); 114 else 115 warn("%s", *argv); 116 success = 0; 117 } else if (vflag) 118 (void)printf("%s\n", *argv); 119 120 if (!success) 121 exitval = 1; 122 /* 123 * The mkdir() and umask() calls both honor only the low 124 * nine bits, so if you try to set a mode including the 125 * sticky, setuid, setgid bits you lose them. Don't do 126 * this unless the user has specifically requested a mode, 127 * as chmod will (obviously) ignore the umask. 128 */ 129 if (success && mode != NULL && chmod(*argv, omode) == -1) { 130 warn("%s", *argv); 131 exitval = 1; 132 } 133 } 134 exit(exitval); 135 } 136 137 int 138 build(path, omode) 139 char *path; 140 mode_t omode; 141 { 142 struct stat sb; 143 mode_t numask, oumask; 144 int first, last, retval; 145 char *p; 146 147 p = path; 148 oumask = 0; 149 retval = 0; 150 if (p[0] == '/') /* Skip leading '/'. */ 151 ++p; 152 for (first = 1, last = 0; !last ; ++p) { 153 if (p[0] == '\0') 154 last = 1; 155 else if (p[0] != '/') 156 continue; 157 *p = '\0'; 158 if (p[1] == '\0') 159 last = 1; 160 if (first) { 161 /* 162 * POSIX 1003.2: 163 * For each dir operand that does not name an existing 164 * directory, effects equivalent to those cased by the 165 * following command shall occcur: 166 * 167 * mkdir -p -m $(umask -S),u+wx $(dirname dir) && 168 * mkdir [-m mode] dir 169 * 170 * We change the user's umask and then restore it, 171 * instead of doing chmod's. 172 */ 173 oumask = umask(0); 174 numask = oumask & ~(S_IWUSR | S_IXUSR); 175 (void)umask(numask); 176 first = 0; 177 } 178 if (last) 179 (void)umask(oumask); 180 if (stat(path, &sb)) { 181 if (errno != ENOENT || 182 mkdir(path, last ? omode : 183 S_IRWXU | S_IRWXG | S_IRWXO) < 0) { 184 warn("%s", path); 185 retval = 1; 186 break; 187 } else if (vflag) 188 printf("%s\n", path); 189 } 190 else if ((sb.st_mode & S_IFMT) != S_IFDIR) { 191 if (last) 192 errno = EEXIST; 193 else 194 errno = ENOTDIR; 195 warn("%s", path); 196 retval = 1; 197 break; 198 } 199 if (!last) 200 *p = '/'; 201 } 202 if (!first && !last) 203 (void)umask(oumask); 204 return (retval); 205 } 206 207 void 208 usage() 209 { 210 211 (void)fprintf(stderr, "usage: mkdir [-pv] [-m mode] directory ...\n"); 212 exit (EX_USAGE); 213 } 214