mkdir.c revision 40606
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. 321556Srgrimes */ 331556Srgrimes 341556Srgrimes#ifndef lint 3520418Sstevestatic char const copyright[] = 361556Srgrimes"@(#) Copyright (c) 1983, 1992, 1993\n\ 371556Srgrimes The Regents of the University of California. All rights reserved.\n"; 381556Srgrimes#endif /* not lint */ 391556Srgrimes 401556Srgrimes#ifndef lint 4136048Scharnier#if 0 4236048Scharnierstatic char sccsid[] = "@(#)mkdir.c 8.2 (Berkeley) 1/25/94"; 4336048Scharnier#endif 4436048Scharnierstatic const char rcsid[] = 4540602Smsmith "$Id: mkdir.c,v 1.13 1998/10/20 08:04:15 msmith Exp $"; 461556Srgrimes#endif /* not lint */ 471556Srgrimes 481556Srgrimes#include <sys/types.h> 491556Srgrimes#include <sys/stat.h> 501556Srgrimes 511556Srgrimes#include <err.h> 521556Srgrimes#include <errno.h> 531556Srgrimes#include <stdio.h> 541556Srgrimes#include <stdlib.h> 551556Srgrimes#include <string.h> 561556Srgrimes#include <unistd.h> 571556Srgrimes 5824524Smppint build __P((char *, mode_t)); 591556Srgrimesvoid usage __P((void)); 601556Srgrimes 611556Srgrimesint 621556Srgrimesmain(argc, argv) 631556Srgrimes int argc; 641556Srgrimes char *argv[]; 651556Srgrimes{ 6640606Smsmith int ch, exitval, success, omode, pflag; 672923Sphk mode_t *set = (mode_t *)NULL; 6824524Smpp char *mode; 691556Srgrimes 702923Sphk omode = pflag = 0; 711556Srgrimes mode = NULL; 7224348Simp while ((ch = getopt(argc, argv, "m:p")) != -1) 731556Srgrimes switch(ch) { 741556Srgrimes case 'p': 751556Srgrimes pflag = 1; 761556Srgrimes break; 771556Srgrimes case 'm': 781556Srgrimes mode = optarg; 791556Srgrimes break; 801556Srgrimes case '?': 811556Srgrimes default: 821556Srgrimes usage(); 831556Srgrimes } 841556Srgrimes 851556Srgrimes argc -= optind; 861556Srgrimes argv += optind; 871556Srgrimes if (argv[0] == NULL) 881556Srgrimes usage(); 891556Srgrimes 901556Srgrimes if (mode == NULL) { 911556Srgrimes omode = S_IRWXU | S_IRWXG | S_IRWXO; 921556Srgrimes } else { 931556Srgrimes if ((set = setmode(mode)) == NULL) 941556Srgrimes errx(1, "invalid file mode: %s", mode); 9524524Smpp omode = getmode(set, S_IRWXU | S_IRWXG | S_IRWXO); 961556Srgrimes } 971556Srgrimes 981556Srgrimes for (exitval = 0; *argv != NULL; ++argv) { 9940606Smsmith success = 1; 10024524Smpp if (pflag) { 10124524Smpp if (build(*argv, omode)) 10240606Smsmith success = 0; 10340602Smsmith } else if (mkdir(*argv, omode) < 0) { 10424524Smpp warn("%s", *argv); 10540606Smsmith success = 0; 10640606Smsmith } 10740606Smsmith if (!success) 10824524Smpp exitval = 1; 10940535Smsmith /* 11040535Smsmith * The mkdir() and umask() calls both honor only the low 11140535Smsmith * nine bits, so if you try to set a mode including the 11240602Smsmith * sticky, setuid, setgid bits you lose them. Don't do 11340602Smsmith * this unless the user has specifically requested a mode, 11440602Smsmith * as chmod will (obviously) ignore the umask. 11540535Smsmith */ 11640606Smsmith if (success && mode != NULL && chmod(*argv, omode) == -1) { 11740606Smsmith warn("%s", *argv); 11840535Smsmith exitval = 1; 11940535Smsmith } 1201556Srgrimes } 1211556Srgrimes exit(exitval); 1221556Srgrimes} 1231556Srgrimes 1241556Srgrimesint 12524524Smppbuild(path, omode) 1261556Srgrimes char *path; 12724524Smpp mode_t omode; 1281556Srgrimes{ 1291556Srgrimes struct stat sb; 1301556Srgrimes mode_t numask, oumask; 13124524Smpp int first, last, retval; 1321556Srgrimes char *p; 1331556Srgrimes 1341556Srgrimes p = path; 1352959Sbde oumask = 0; 13624524Smpp retval = 0; 1371556Srgrimes if (p[0] == '/') /* Skip leading '/'. */ 1381556Srgrimes ++p; 13924524Smpp for (first = 1, last = 0; !last ; ++p) { 14024524Smpp if (p[0] == '\0') 14124524Smpp last = 1; 14224524Smpp else if (p[0] != '/') 1431556Srgrimes continue; 1441556Srgrimes *p = '\0'; 14524524Smpp if (p[1] == '\0') 14624524Smpp last = 1; 1471556Srgrimes if (first) { 1481556Srgrimes /* 1491556Srgrimes * POSIX 1003.2: 1501556Srgrimes * For each dir operand that does not name an existing 1511556Srgrimes * directory, effects equivalent to those cased by the 1521556Srgrimes * following command shall occcur: 1531556Srgrimes * 1541556Srgrimes * mkdir -p -m $(umask -S),u+wx $(dirname dir) && 1551556Srgrimes * mkdir [-m mode] dir 1561556Srgrimes * 1571556Srgrimes * We change the user's umask and then restore it, 1581556Srgrimes * instead of doing chmod's. 1591556Srgrimes */ 1601556Srgrimes oumask = umask(0); 1611556Srgrimes numask = oumask & ~(S_IWUSR | S_IXUSR); 1621556Srgrimes (void)umask(numask); 1631556Srgrimes first = 0; 1641556Srgrimes } 16524524Smpp if (last) 16624524Smpp (void)umask(oumask); 1671556Srgrimes if (stat(path, &sb)) { 1681556Srgrimes if (errno != ENOENT || 16924524Smpp mkdir(path, last ? omode : 17024524Smpp S_IRWXU | S_IRWXG | S_IRWXO) < 0) { 1711556Srgrimes warn("%s", path); 17224524Smpp retval = 1; 17324524Smpp break; 1741556Srgrimes } 1751556Srgrimes } 17624524Smpp else if ((sb.st_mode & S_IFMT) != S_IFDIR) { 17724524Smpp if (last) 17824524Smpp errno = EEXIST; 17924524Smpp else 18024524Smpp errno = ENOTDIR; 18124524Smpp warn("%s", path); 18224524Smpp retval = 1; 18324524Smpp break; 18424524Smpp } 18540602Smsmith if (!last) 18640602Smsmith *p = '/'; 1871556Srgrimes } 18824524Smpp if (!first && !last) 1891556Srgrimes (void)umask(oumask); 19024524Smpp return (retval); 1911556Srgrimes} 1921556Srgrimes 1931556Srgrimesvoid 1941556Srgrimesusage() 1951556Srgrimes{ 1961556Srgrimes (void)fprintf(stderr, "usage: mkdir [-p] [-m mode] directory ...\n"); 1971556Srgrimes exit (1); 1981556Srgrimes} 199