mkdir.c revision 24524
11556Srgrimes/* 21556Srgrimes * Copyright (c) 1983, 1992, 1993 31556Srgrimes * The Regents of the University of California. All rights reserved. 41556Srgrimes * 51556Srgrimes * Redistribution and use in source and binary forms, with or without 61556Srgrimes * modification, are permitted provided that the following conditions 71556Srgrimes * are met: 81556Srgrimes * 1. Redistributions of source code must retain the above copyright 91556Srgrimes * notice, this list of conditions and the following disclaimer. 101556Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111556Srgrimes * notice, this list of conditions and the following disclaimer in the 121556Srgrimes * documentation and/or other materials provided with the distribution. 131556Srgrimes * 3. All advertising materials mentioning features or use of this software 141556Srgrimes * must display the following acknowledgement: 151556Srgrimes * This product includes software developed by the University of 161556Srgrimes * California, Berkeley and its contributors. 171556Srgrimes * 4. Neither the name of the University nor the names of its contributors 181556Srgrimes * may be used to endorse or promote products derived from this software 191556Srgrimes * without specific prior written permission. 201556Srgrimes * 211556Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 221556Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 231556Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 241556Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 251556Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 261556Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 271556Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 281556Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 291556Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 301556Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 311556Srgrimes * SUCH DAMAGE. 323044Sdg * 3324524Smpp * $Id: mkdir.c,v 1.9 1997/03/28 15:24:25 imp Exp $ 341556Srgrimes */ 351556Srgrimes 361556Srgrimes#ifndef lint 3720418Sstevestatic char const copyright[] = 381556Srgrimes"@(#) Copyright (c) 1983, 1992, 1993\n\ 391556Srgrimes The Regents of the University of California. All rights reserved.\n"; 401556Srgrimes#endif /* not lint */ 411556Srgrimes 421556Srgrimes#ifndef lint 4320418Sstevestatic char const sccsid[] = "@(#)mkdir.c 8.2 (Berkeley) 1/25/94"; 441556Srgrimes#endif /* not lint */ 451556Srgrimes 461556Srgrimes#include <sys/types.h> 471556Srgrimes#include <sys/stat.h> 481556Srgrimes 491556Srgrimes#include <err.h> 501556Srgrimes#include <errno.h> 511556Srgrimes#include <stdio.h> 521556Srgrimes#include <stdlib.h> 531556Srgrimes#include <string.h> 541556Srgrimes#include <unistd.h> 551556Srgrimes 5624524Smppint build __P((char *, mode_t)); 571556Srgrimesvoid usage __P((void)); 581556Srgrimes 591556Srgrimesint 601556Srgrimesmain(argc, argv) 611556Srgrimes int argc; 621556Srgrimes char *argv[]; 631556Srgrimes{ 6424524Smpp int ch, exitval, omode, pflag; 652923Sphk mode_t *set = (mode_t *)NULL; 6624524Smpp char *mode; 671556Srgrimes 682923Sphk omode = pflag = 0; 691556Srgrimes mode = NULL; 7024348Simp while ((ch = getopt(argc, argv, "m:p")) != -1) 711556Srgrimes switch(ch) { 721556Srgrimes case 'p': 731556Srgrimes pflag = 1; 741556Srgrimes break; 751556Srgrimes case 'm': 761556Srgrimes mode = optarg; 771556Srgrimes break; 781556Srgrimes case '?': 791556Srgrimes default: 801556Srgrimes usage(); 811556Srgrimes } 821556Srgrimes 831556Srgrimes argc -= optind; 841556Srgrimes argv += optind; 851556Srgrimes if (argv[0] == NULL) 861556Srgrimes usage(); 871556Srgrimes 881556Srgrimes if (mode == NULL) { 891556Srgrimes omode = S_IRWXU | S_IRWXG | S_IRWXO; 901556Srgrimes } else { 911556Srgrimes if ((set = setmode(mode)) == NULL) 921556Srgrimes errx(1, "invalid file mode: %s", mode); 9324524Smpp omode = getmode(set, S_IRWXU | S_IRWXG | S_IRWXO); 941556Srgrimes } 951556Srgrimes 961556Srgrimes for (exitval = 0; *argv != NULL; ++argv) { 9724524Smpp if (pflag) { 9824524Smpp if (build(*argv, omode)) 9924524Smpp exitval = 1; 1001556Srgrimes continue; 1011556Srgrimes } 10224524Smpp if (mkdir(*argv, omode) < 0) { 10324524Smpp warn("%s", *argv); 10424524Smpp exitval = 1; 1051556Srgrimes } 1061556Srgrimes } 1071556Srgrimes exit(exitval); 1081556Srgrimes} 1091556Srgrimes 1101556Srgrimesint 11124524Smppbuild(path, omode) 1121556Srgrimes char *path; 11324524Smpp mode_t omode; 1141556Srgrimes{ 1151556Srgrimes struct stat sb; 1161556Srgrimes mode_t numask, oumask; 11724524Smpp int first, last, retval; 1181556Srgrimes char *p; 1191556Srgrimes 1201556Srgrimes p = path; 1212959Sbde oumask = 0; 12224524Smpp retval = 0; 1231556Srgrimes if (p[0] == '/') /* Skip leading '/'. */ 1241556Srgrimes ++p; 12524524Smpp for (first = 1, last = 0; !last ; ++p) { 12624524Smpp if (p[0] == '\0') 12724524Smpp last = 1; 12824524Smpp else if (p[0] != '/') 1291556Srgrimes continue; 1301556Srgrimes *p = '\0'; 13124524Smpp if (p[1] == '\0') 13224524Smpp last = 1; 1331556Srgrimes if (first) { 1341556Srgrimes /* 1351556Srgrimes * POSIX 1003.2: 1361556Srgrimes * For each dir operand that does not name an existing 1371556Srgrimes * directory, effects equivalent to those cased by the 1381556Srgrimes * following command shall occcur: 1391556Srgrimes * 1401556Srgrimes * mkdir -p -m $(umask -S),u+wx $(dirname dir) && 1411556Srgrimes * mkdir [-m mode] dir 1421556Srgrimes * 1431556Srgrimes * We change the user's umask and then restore it, 1441556Srgrimes * instead of doing chmod's. 1451556Srgrimes */ 1461556Srgrimes oumask = umask(0); 1471556Srgrimes numask = oumask & ~(S_IWUSR | S_IXUSR); 1481556Srgrimes (void)umask(numask); 1491556Srgrimes first = 0; 1501556Srgrimes } 15124524Smpp if (last) 15224524Smpp (void)umask(oumask); 1531556Srgrimes if (stat(path, &sb)) { 1541556Srgrimes if (errno != ENOENT || 15524524Smpp mkdir(path, last ? omode : 15624524Smpp S_IRWXU | S_IRWXG | S_IRWXO) < 0) { 1571556Srgrimes warn("%s", path); 15824524Smpp retval = 1; 15924524Smpp break; 1601556Srgrimes } 1611556Srgrimes } 16224524Smpp else if ((sb.st_mode & S_IFMT) != S_IFDIR) { 16324524Smpp if (last) 16424524Smpp errno = EEXIST; 16524524Smpp else 16624524Smpp errno = ENOTDIR; 16724524Smpp warn("%s", path); 16824524Smpp retval = 1; 16924524Smpp break; 17024524Smpp } 1711556Srgrimes *p = '/'; 1721556Srgrimes } 17324524Smpp if (!first && !last) 1741556Srgrimes (void)umask(oumask); 17524524Smpp return (retval); 1761556Srgrimes} 1771556Srgrimes 1781556Srgrimesvoid 1791556Srgrimesusage() 1801556Srgrimes{ 1811556Srgrimes (void)fprintf(stderr, "usage: mkdir [-p] [-m mode] directory ...\n"); 1821556Srgrimes exit (1); 1831556Srgrimes} 184