changes for 4.4BSD-Lite requested by USL

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

/*
* Copyright (c) 1983, 1992, 1993
*      The Regents of the University of California.  All rights reserved.
*
* %sccs.include.redist.c%
*/

#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1983, 1992, 1993\n\
       The Regents of the University of California.  All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)mkdir.c     8.1 (Berkeley) %G%";
#endif /* not lint */

#include <sys/types.h>
#include <sys/stat.h>

#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int     build __P((char *));
void    usage __P((void));

int
main(argc, argv)
       int argc;
       char *argv[];
{
       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, S_IRWXU | S_IRWXG | S_IRWXO) < 0) {
                       warn("%s", *argv);
                       exitval = 1;
               }
       exit(exitval);
}

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

       p = path;
       if (*p)                         /* Skip leading '/'. */
               ++p;
       for (create = 0;; ++p)
               if (!*p || *p == '/') {
                       savech = *p;
                       *p = '\0';
                       if (stat(path, &sb)) {
                               if (errno != ENOENT || mkdir(path,
                                   S_IRWXU | S_IRWXG | S_IRWXO) < 0) {
                                       warn("%s", path);
                                       return (1);
                               }
                               create = 1;
                       }
                       if (!(*p = savech))
                               break;
               }
       if (!create) {
               warnx("%s: %s", path, strerror(EEXIST));
               return (1);
       }
       return (0);
}

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