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 static int build(char *, mode_t); 61 static void usage(void); 62 63 int vflag; 64 65 int 66 main(int argc, char *argv[]) 67 { 68 int ch, exitval, success, pflag; 69 mode_t omode, *set = (mode_t *)NULL; 70 char *mode; 71 72 omode = pflag = 0; 73 mode = NULL; 74 while ((ch = getopt(argc, argv, "m:pv")) != -1) 75 switch(ch) { 76 case 'm': 77 mode = optarg; 78 break; 79 case 'p': 80 pflag = 1; 81 break; 82 case 'v': 83 vflag = 1; 84 break; 85 case '?': 86 default: 87 usage(); 88 } 89 90 argc -= optind; 91 argv += optind; 92 if (argv[0] == NULL) 93 usage(); 94 95 if (mode == NULL) { 96 omode = S_IRWXU | S_IRWXG | S_IRWXO; 97 } else { 98 if ((set = setmode(mode)) == NULL) 99 errx(1, "invalid file mode: %s", mode); 100 omode = getmode(set, S_IRWXU | S_IRWXG | S_IRWXO); 101 free(set); 102 } 103 104 for (exitval = 0; *argv != NULL; ++argv) { 105 success = 1; 106 if (pflag) { 107 if (build(*argv, omode)) 108 success = 0; 109 } else if (mkdir(*argv, omode) < 0) { 110 if (errno == ENOTDIR || errno == ENOENT) 111 warn("%s", dirname(*argv)); 112 else 113 warn("%s", *argv); 114 success = 0; 115 } else if (vflag) 116 (void)printf("%s\n", *argv); 117 118 if (!success) 119 exitval = 1; 120 /* 121 * The mkdir() and umask() calls both honor only the low 122 * nine bits, so if you try to set a mode including the 123 * sticky, setuid, setgid bits you lose them. Don't do 124 * this unless the user has specifically requested a mode, 125 * as chmod will (obviously) ignore the umask. 126 */ 127 if (success && mode != NULL && chmod(*argv, omode) == -1) { 128 warn("%s", *argv); 129 exitval = 1; 130 } 131 } 132 exit(exitval); 133 } 134 135 int 136 build(char *path, 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 (mkdir(path, last ? omode : S_IRWXU | S_IRWXG | S_IRWXO) < 0) { 177 if (errno == EEXIST || errno == EISDIR) { 178 if (stat(path, &sb) < 0) { 179 warn("%s", path); 180 retval = 1; 181 break; 182 } else if (!S_ISDIR(sb.st_mode)) { 183 if (last) 184 errno = EEXIST; 185 else 186 errno = ENOTDIR; 187 warn("%s", path); 188 retval = 1; 189 break; 190 } 191 } else { 192 warn("%s", path); 193 retval = 1; 194 break; 195 } 196 } else if (vflag) 197 printf("%s\n", path); 198 if (!last) 199 *p = '/'; 200 } 201 if (!first && !last) 202 (void)umask(oumask); 203 return (retval); 204 } 205 206 void 207 usage(void) 208 { 209 210 (void)fprintf(stderr, "usage: mkdir [-pv] [-m mode] directory ...\n"); 211 exit (EX_USAGE); 212 } 213