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mkdir.c revision 1.1 
      1 /*
      2  * Copyright (c) 1983 Regents of the University of California.
      3  * 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 char copyright[] =
     36 "@(#) Copyright (c) 1983 Regents of the University of California.\n\
     37  All rights reserved.\n";
     38 #endif /* not lint */
     39 
     40 #ifndef lint
     41 static char sccsid[] = "@(#)mkdir.c	5.7 (Berkeley) 5/31/90";
     42 #endif /* not lint */
     43 
     44 #include <sys/types.h>
     45 #include <sys/stat.h>
     46 #include <errno.h>
     47 #include <stdio.h>
     48 #include <string.h>
     49 
     50 extern int errno;
     51 
     52 main(argc, argv)
     53 	int argc;
     54 	char **argv;
     55 {
     56 	extern int optind;
     57 	int ch, exitval, pflag;
     58 
     59 	pflag = 0;
     60 	while ((ch = getopt(argc, argv, "p")) != EOF)
     61 		switch(ch) {
     62 		case 'p':
     63 			pflag = 1;
     64 			break;
     65 		case '?':
     66 		default:
     67 			usage();
     68 		}
     69 
     70 	if (!*(argv += optind))
     71 		usage();
     72 
     73 	for (exitval = 0; *argv; ++argv)
     74 		if (pflag)
     75 			exitval |= build(*argv);
     76 		else if (mkdir(*argv, 0777) < 0) {
     77 			(void)fprintf(stderr, "mkdir: %s: %s\n",
     78 			    *argv, strerror(errno));
     79 			exitval = 1;
     80 		}
     81 	exit(exitval);
     82 }
     83 
     84 build(path)
     85 	char *path;
     86 {
     87 	register char *p;
     88 	struct stat sb;
     89 	int create, ch;
     90 
     91 	for (create = 0, p = path;; ++p)
     92 		if (!*p || *p  == '/') {
     93 			ch = *p;
     94 			*p = '\0';
     95 			if (stat(path, &sb)) {
     96 				if (errno != ENOENT || mkdir(path, 0777) < 0) {
     97 					(void)fprintf(stderr, "mkdir: %s: %s\n",
     98 					    path, strerror(errno));
     99 					return(1);
    100 				}
    101 				create = 1;
    102 			}
    103 			if (!(*p = ch))
    104 				break;
    105 		}
    106 	if (!create) {
    107 		(void)fprintf(stderr, "mkdir: %s: %s\n", path,
    108 		    strerror(EEXIST));
    109 		return(1);
    110 	}
    111 	return(0);
    112 }
    113 
    114 usage()
    115 {
    116 	(void)fprintf(stderr, "usage: mkdir [-p] dirname ...\n");
    117 	exit(1);
    118 }
    119