Due to the deletion of the gcc support from libc we need again the

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

/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the University of
*      California, Berkeley and its contributors.
* 4. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

#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";
static char rcsid[] = "$Header: /b/source/CVS/src/bin/mkdir/mkdir.c,v 1.4 1993/07/20 22:27:08 jtc Exp $";
#endif /* not lint */

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

extern int errno;
extern void *setmode();
extern mode_t getmode();

main(argc, argv)
       int argc;
       char **argv;
{
       int ch, exitval, pflag;
       void *set;
       mode_t mode, dir_mode;

       /* default file mode is a=rwx (777) with selected permissions
          removed in accordance with the file mode creation mask.
          For intermediate path name components, the mode is the default
          modified by u+wx so that the subdirectories can always be 
          created. */
       mode = 0777 & ~umask(0);
       dir_mode = mode | S_IWUSR | S_IXUSR;

       pflag = 0;
       while ((ch = getopt(argc, argv, "pm:")) != EOF)
               switch(ch) {
               case 'p':
                       pflag = 1;
                       break;
               case 'm':
                       if ((set = setmode(optarg)) == NULL) {
                               (void)fprintf(stderr,
                                       "mkdir: invalid file mode.\n");
                               exit(1);
                       }
                       mode = getmode (set, S_IRWXU | S_IRWXG | S_IRWXO);
                       break;
               case '?':
               default:
                       usage();
               }

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

/*
* build -- create directories.  
*      mode     - file mode of terminal directory
*      dir_mode - file mode of intermediate directories
*/
build(path, mode, dir_mode)
       char *path;
       mode_t mode;
       mode_t dir_mode;
{
       register char *p;
       struct stat sb;
       int ch;

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

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