mkdir.c revision 71029
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[] = 4550471Speter "$FreeBSD: head/bin/mkdir/mkdir.c 71029 2001-01-14 12:08:50Z alfred $"; 461556Srgrimes#endif /* not lint */ 471556Srgrimes 481556Srgrimes#include <sys/types.h> 491556Srgrimes#include <sys/stat.h> 501556Srgrimes 511556Srgrimes#include <err.h> 521556Srgrimes#include <errno.h> 5371029Salfred#include <libgen.h> 541556Srgrimes#include <stdio.h> 551556Srgrimes#include <stdlib.h> 561556Srgrimes#include <string.h> 5750528Smharo#include <sysexits.h> 581556Srgrimes#include <unistd.h> 591556Srgrimes 6024524Smppint build __P((char *, mode_t)); 611556Srgrimesvoid usage __P((void)); 621556Srgrimes 6350528Smharoint vflag; 6450528Smharo 651556Srgrimesint 661556Srgrimesmain(argc, argv) 671556Srgrimes int argc; 681556Srgrimes char *argv[]; 691556Srgrimes{ 7040606Smsmith int ch, exitval, success, omode, pflag; 712923Sphk mode_t *set = (mode_t *)NULL; 7224524Smpp char *mode; 731556Srgrimes 742923Sphk omode = pflag = 0; 751556Srgrimes mode = NULL; 7650528Smharo while ((ch = getopt(argc, argv, "m:pv")) != -1) 771556Srgrimes switch(ch) { 7850870Smharo case 'm': 7950870Smharo mode = optarg; 8050870Smharo break; 811556Srgrimes case 'p': 821556Srgrimes pflag = 1; 831556Srgrimes break; 8450528Smharo case 'v': 8550528Smharo vflag = 1; 8650528Smharo break; 871556Srgrimes case '?': 881556Srgrimes default: 891556Srgrimes usage(); 901556Srgrimes } 911556Srgrimes 921556Srgrimes argc -= optind; 931556Srgrimes argv += optind; 941556Srgrimes if (argv[0] == NULL) 951556Srgrimes usage(); 961556Srgrimes 971556Srgrimes if (mode == NULL) { 981556Srgrimes omode = S_IRWXU | S_IRWXG | S_IRWXO; 991556Srgrimes } else { 1001556Srgrimes if ((set = setmode(mode)) == NULL) 1011556Srgrimes errx(1, "invalid file mode: %s", mode); 10224524Smpp omode = getmode(set, S_IRWXU | S_IRWXG | S_IRWXO); 10341842Simp free(set); 1041556Srgrimes } 1051556Srgrimes 1061556Srgrimes for (exitval = 0; *argv != NULL; ++argv) { 10740606Smsmith success = 1; 10824524Smpp if (pflag) { 10924524Smpp if (build(*argv, omode)) 11040606Smsmith success = 0; 11140602Smsmith } else if (mkdir(*argv, omode) < 0) { 11271029Salfred if (errno == ENOTDIR || errno == ENOENT) 11371029Salfred warn("%s", dirname(*argv)); 11471029Salfred else 11571029Salfred warn("%s", *argv); 11640606Smsmith success = 0; 11750528Smharo } else if (vflag) 11850528Smharo (void)printf("%s\n", *argv); 11950528Smharo 12040606Smsmith if (!success) 12124524Smpp exitval = 1; 12240535Smsmith /* 12340535Smsmith * The mkdir() and umask() calls both honor only the low 12440535Smsmith * nine bits, so if you try to set a mode including the 12540602Smsmith * sticky, setuid, setgid bits you lose them. Don't do 12640602Smsmith * this unless the user has specifically requested a mode, 12740602Smsmith * as chmod will (obviously) ignore the umask. 12840535Smsmith */ 12940606Smsmith if (success && mode != NULL && chmod(*argv, omode) == -1) { 13040606Smsmith warn("%s", *argv); 13140535Smsmith exitval = 1; 13240535Smsmith } 1331556Srgrimes } 1341556Srgrimes exit(exitval); 1351556Srgrimes} 1361556Srgrimes 1371556Srgrimesint 13824524Smppbuild(path, omode) 1391556Srgrimes char *path; 14024524Smpp mode_t omode; 1411556Srgrimes{ 1421556Srgrimes struct stat sb; 1431556Srgrimes mode_t numask, oumask; 14424524Smpp int first, last, retval; 1451556Srgrimes char *p; 1461556Srgrimes 1471556Srgrimes p = path; 1482959Sbde oumask = 0; 14924524Smpp retval = 0; 1501556Srgrimes if (p[0] == '/') /* Skip leading '/'. */ 1511556Srgrimes ++p; 15224524Smpp for (first = 1, last = 0; !last ; ++p) { 15324524Smpp if (p[0] == '\0') 15424524Smpp last = 1; 15524524Smpp else if (p[0] != '/') 1561556Srgrimes continue; 1571556Srgrimes *p = '\0'; 15824524Smpp if (p[1] == '\0') 15924524Smpp last = 1; 1601556Srgrimes if (first) { 1611556Srgrimes /* 1621556Srgrimes * POSIX 1003.2: 1631556Srgrimes * For each dir operand that does not name an existing 1641556Srgrimes * directory, effects equivalent to those cased by the 1651556Srgrimes * following command shall occcur: 1661556Srgrimes * 1671556Srgrimes * mkdir -p -m $(umask -S),u+wx $(dirname dir) && 1681556Srgrimes * mkdir [-m mode] dir 1691556Srgrimes * 1701556Srgrimes * We change the user's umask and then restore it, 1711556Srgrimes * instead of doing chmod's. 1721556Srgrimes */ 1731556Srgrimes oumask = umask(0); 1741556Srgrimes numask = oumask & ~(S_IWUSR | S_IXUSR); 1751556Srgrimes (void)umask(numask); 1761556Srgrimes first = 0; 1771556Srgrimes } 17824524Smpp if (last) 17924524Smpp (void)umask(oumask); 1801556Srgrimes if (stat(path, &sb)) { 1811556Srgrimes if (errno != ENOENT || 18224524Smpp mkdir(path, last ? omode : 18324524Smpp S_IRWXU | S_IRWXG | S_IRWXO) < 0) { 1841556Srgrimes warn("%s", path); 18524524Smpp retval = 1; 18624524Smpp break; 18750528Smharo } else if (vflag) 18850528Smharo printf("%s\n", path); 1891556Srgrimes } 19024524Smpp else if ((sb.st_mode & S_IFMT) != S_IFDIR) { 19124524Smpp if (last) 19224524Smpp errno = EEXIST; 19324524Smpp else 19424524Smpp errno = ENOTDIR; 19524524Smpp warn("%s", path); 19624524Smpp retval = 1; 19724524Smpp break; 19824524Smpp } 19940602Smsmith if (!last) 20040602Smsmith *p = '/'; 2011556Srgrimes } 20224524Smpp if (!first && !last) 2031556Srgrimes (void)umask(oumask); 20424524Smpp return (retval); 2051556Srgrimes} 2061556Srgrimes 2071556Srgrimesvoid 2081556Srgrimesusage() 2091556Srgrimes{ 21050870Smharo 21150870Smharo (void)fprintf(stderr, "usage: mkdir [-pv] [-m mode] directory ...\n"); 21250528Smharo exit (EX_USAGE); 2131556Srgrimes} 214