mkdir.c revision 135718
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 * 4. Neither the name of the University nor the names of its contributors 141556Srgrimes * may be used to endorse or promote products derived from this software 151556Srgrimes * without specific prior written permission. 161556Srgrimes * 171556Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181556Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191556Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201556Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211556Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221556Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231556Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241556Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251556Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261556Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271556Srgrimes * SUCH DAMAGE. 281556Srgrimes */ 291556Srgrimes 30114433Sobrien#if 0 311556Srgrimes#ifndef lint 3220418Sstevestatic char const copyright[] = 331556Srgrimes"@(#) Copyright (c) 1983, 1992, 1993\n\ 341556Srgrimes The Regents of the University of California. All rights reserved.\n"; 351556Srgrimes#endif /* not lint */ 361556Srgrimes 371556Srgrimes#ifndef lint 3836048Scharnierstatic char sccsid[] = "@(#)mkdir.c 8.2 (Berkeley) 1/25/94"; 39114433Sobrien#endif /* not lint */ 4036048Scharnier#endif 4199109Sobrien#include <sys/cdefs.h> 4299109Sobrien__FBSDID("$FreeBSD: head/bin/mkdir/mkdir.c 135718 2004-09-24 06:57:26Z das $"); 431556Srgrimes 441556Srgrimes#include <sys/types.h> 451556Srgrimes#include <sys/stat.h> 461556Srgrimes 471556Srgrimes#include <err.h> 481556Srgrimes#include <errno.h> 4971029Salfred#include <libgen.h> 501556Srgrimes#include <stdio.h> 511556Srgrimes#include <stdlib.h> 521556Srgrimes#include <string.h> 5350528Smharo#include <sysexits.h> 541556Srgrimes#include <unistd.h> 551556Srgrimes 5691084Smarkmstatic int build(char *, mode_t); 5791084Smarkmstatic void usage(void); 581556Srgrimes 5950528Smharoint vflag; 6050528Smharo 611556Srgrimesint 6290110Simpmain(int argc, char *argv[]) 631556Srgrimes{ 6491084Smarkm int ch, exitval, success, pflag; 6591084Smarkm mode_t omode, *set = (mode_t *)NULL; 6624524Smpp char *mode; 671556Srgrimes 682923Sphk omode = pflag = 0; 691556Srgrimes mode = NULL; 7050528Smharo while ((ch = getopt(argc, argv, "m:pv")) != -1) 711556Srgrimes switch(ch) { 7250870Smharo case 'm': 7350870Smharo mode = optarg; 7450870Smharo break; 751556Srgrimes case 'p': 761556Srgrimes pflag = 1; 771556Srgrimes break; 7850528Smharo case 'v': 7950528Smharo vflag = 1; 8050528Smharo break; 811556Srgrimes case '?': 821556Srgrimes default: 831556Srgrimes usage(); 841556Srgrimes } 851556Srgrimes 861556Srgrimes argc -= optind; 871556Srgrimes argv += optind; 881556Srgrimes if (argv[0] == NULL) 891556Srgrimes usage(); 901556Srgrimes 911556Srgrimes if (mode == NULL) { 921556Srgrimes omode = S_IRWXU | S_IRWXG | S_IRWXO; 931556Srgrimes } else { 941556Srgrimes if ((set = setmode(mode)) == NULL) 951556Srgrimes errx(1, "invalid file mode: %s", mode); 9624524Smpp omode = getmode(set, S_IRWXU | S_IRWXG | S_IRWXO); 9741842Simp free(set); 981556Srgrimes } 991556Srgrimes 1001556Srgrimes for (exitval = 0; *argv != NULL; ++argv) { 10140606Smsmith success = 1; 10224524Smpp if (pflag) { 10324524Smpp if (build(*argv, omode)) 10440606Smsmith success = 0; 10540602Smsmith } else if (mkdir(*argv, omode) < 0) { 10671029Salfred if (errno == ENOTDIR || errno == ENOENT) 10771029Salfred warn("%s", dirname(*argv)); 10871029Salfred else 10971029Salfred warn("%s", *argv); 11040606Smsmith success = 0; 11150528Smharo } else if (vflag) 11250528Smharo (void)printf("%s\n", *argv); 11350528Smharo 11440606Smsmith if (!success) 11524524Smpp exitval = 1; 11640535Smsmith /* 11740535Smsmith * The mkdir() and umask() calls both honor only the low 11840535Smsmith * nine bits, so if you try to set a mode including the 11940602Smsmith * sticky, setuid, setgid bits you lose them. Don't do 12040602Smsmith * this unless the user has specifically requested a mode, 12140602Smsmith * as chmod will (obviously) ignore the umask. 12240535Smsmith */ 12340606Smsmith if (success && mode != NULL && chmod(*argv, omode) == -1) { 12440606Smsmith warn("%s", *argv); 12540535Smsmith exitval = 1; 12640535Smsmith } 1271556Srgrimes } 1281556Srgrimes exit(exitval); 1291556Srgrimes} 1301556Srgrimes 1311556Srgrimesint 13290110Simpbuild(char *path, mode_t omode) 1331556Srgrimes{ 1341556Srgrimes struct stat sb; 1351556Srgrimes mode_t numask, oumask; 13624524Smpp int first, last, retval; 1371556Srgrimes char *p; 1381556Srgrimes 1391556Srgrimes p = path; 1402959Sbde oumask = 0; 14124524Smpp retval = 0; 1421556Srgrimes if (p[0] == '/') /* Skip leading '/'. */ 1431556Srgrimes ++p; 14424524Smpp for (first = 1, last = 0; !last ; ++p) { 14524524Smpp if (p[0] == '\0') 14624524Smpp last = 1; 14724524Smpp else if (p[0] != '/') 1481556Srgrimes continue; 1491556Srgrimes *p = '\0'; 150135718Sdas if (!last && p[1] == '\0') 15124524Smpp last = 1; 1521556Srgrimes if (first) { 1531556Srgrimes /* 1541556Srgrimes * POSIX 1003.2: 1551556Srgrimes * For each dir operand that does not name an existing 1561556Srgrimes * directory, effects equivalent to those cased by the 1571556Srgrimes * following command shall occcur: 1581556Srgrimes * 1591556Srgrimes * mkdir -p -m $(umask -S),u+wx $(dirname dir) && 1601556Srgrimes * mkdir [-m mode] dir 1611556Srgrimes * 1621556Srgrimes * We change the user's umask and then restore it, 1631556Srgrimes * instead of doing chmod's. 1641556Srgrimes */ 1651556Srgrimes oumask = umask(0); 1661556Srgrimes numask = oumask & ~(S_IWUSR | S_IXUSR); 1671556Srgrimes (void)umask(numask); 1681556Srgrimes first = 0; 1691556Srgrimes } 17024524Smpp if (last) 17124524Smpp (void)umask(oumask); 17290266Szarzycki if (mkdir(path, last ? omode : S_IRWXU | S_IRWXG | S_IRWXO) < 0) { 17391235Ssobomax if (errno == EEXIST || errno == EISDIR) { 17490266Szarzycki if (stat(path, &sb) < 0) { 17590266Szarzycki warn("%s", path); 17690266Szarzycki retval = 1; 17790266Szarzycki break; 17890266Szarzycki } else if (!S_ISDIR(sb.st_mode)) { 17990266Szarzycki if (last) 18090266Szarzycki errno = EEXIST; 18190266Szarzycki else 18290266Szarzycki errno = ENOTDIR; 18390266Szarzycki warn("%s", path); 18490266Szarzycki retval = 1; 18590266Szarzycki break; 18690266Szarzycki } 18790266Szarzycki } else { 1881556Srgrimes warn("%s", path); 18924524Smpp retval = 1; 19024524Smpp break; 19190266Szarzycki } 19290266Szarzycki } else if (vflag) 19390266Szarzycki printf("%s\n", path); 19440602Smsmith if (!last) 19540602Smsmith *p = '/'; 1961556Srgrimes } 19724524Smpp if (!first && !last) 1981556Srgrimes (void)umask(oumask); 19924524Smpp return (retval); 2001556Srgrimes} 2011556Srgrimes 2021556Srgrimesvoid 20390110Simpusage(void) 2041556Srgrimes{ 20550870Smharo 20650870Smharo (void)fprintf(stderr, "usage: mkdir [-pv] [-m mode] directory ...\n"); 20750528Smharo exit (EX_USAGE); 2081556Srgrimes} 209