BSD 4_3_Reno release

[unix-history] / usr / src / bin / mkdir / mkdir.c

/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that: (1) source distributions retain this entire copyright
* notice and comment, and (2) distributions including binaries display
* the following acknowledgement:  ``This product includes software
* developed by the University of California, Berkeley and its contributors''
* in the documentation or other materials provided with the distribution
* and in all advertising materials mentioning features or use of this
* software. Neither the name of the University nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1983 Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)mkdir.c     5.7 (Berkeley) 5/31/90";
#endif /* not lint */

#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>

extern int errno;

main(argc, argv)
       int argc;
       char **argv;
{
       extern int optind;
       int ch, exitval, pflag;

       pflag = 0;
       while ((ch = getopt(argc, argv, "p")) != EOF)
               switch(ch) {
               case 'p':
                       pflag = 1;
                       break;
               case '?':
               default:
                       usage();
               }

       if (!*(argv += optind))
               usage();

       for (exitval = 0; *argv; ++argv)
               if (pflag)
                       exitval |= build(*argv);
               else if (mkdir(*argv, 0777) < 0) {
                       (void)fprintf(stderr, "mkdir: %s: %s\n",
                           *argv, strerror(errno));
                       exitval = 1;
               }
       exit(exitval);
}

build(path)
       char *path;
{
       register char *p;
       struct stat sb;
       int create, ch;

       for (create = 0, p = path;; ++p)
               if (!*p || *p  == '/') {
                       ch = *p;
                       *p = '\0';
                       if (stat(path, &sb)) {
                               if (errno != ENOENT || mkdir(path, 0777) < 0) {
                                       (void)fprintf(stderr, "mkdir: %s: %s\n",
                                           path, strerror(errno));
                                       return(1);
                               }
                               create = 1;
                       }
                       if (!(*p = ch))
                               break;
               }
       if (!create) {
               (void)fprintf(stderr, "mkdir: %s: %s\n", path,
                   strerror(EEXIST));
               return(1);
       }
       return(0);
}

usage()
{
       (void)fprintf(stderr, "usage: mkdir [-p] dirname ...\n");
       exit(1);
}