bin/rmdir/rmdir.c

   1 /* $NetBSD: rmdir.c,v 1.26.36.1 2017/08/14 23:54:30 snj Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1992, 1993, 1994
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #ifndef lint
  34 __COPYRIGHT("@(#) Copyright (c) 1992, 1993, 1994\
  35  The Regents of the University of California.  All rights reserved.");
  36 #endif /* not lint */
  37
  38 #ifndef lint
  39 #if 0
  40 static char sccsid[] = "@(#)rmdir.c     8.3 (Berkeley) 4/2/94";
  41 #else
  42 __RCSID("$NetBSD: rmdir.c,v 1.26.36.1 2017/08/14 23:54:30 snj Exp $");
  43 #endif
  44 #endif /* not lint */
  45
  46 #include <sys/param.h>
  47
  48 #include <err.h>
  49 #include <locale.h>
  50 #include <stdio.h>
  51 #include <stdlib.h>
  52 #include <string.h>
  53 #include <unistd.h>
  54
  55 static int      rm_path(char *);
  56 __dead static void      usage(void);
  57
  58 int
  59 main(int argc, char *argv[])
  60 {
  61         int ch, errors, pflag;
  62
  63         setprogname(argv[0]);
  64         (void)setlocale(LC_ALL, "");
  65
  66         pflag = 0;
  67         while ((ch = getopt(argc, argv, "p")) != -1)
  68                 switch(ch) {
  69                 case 'p':
  70                         pflag = 1;
  71                         break;
  72                 case '?':
  73                 default:
  74                         usage();
  75                 }
  76         argc -= optind;
  77         argv += optind;
  78
  79         if (argc == 0)
  80                 usage();
  81
  82         for (errors = 0; *argv; argv++) {
  83                 /* We rely on the kernel to ignore trailing '/' characters. */
  84                 if (rmdir(*argv) < 0) {
  85                         warn("%s", *argv);
  86                         errors = 1;
  87                 } else if (pflag)
  88                         errors |= rm_path(*argv);
  89         }
  90
  91         exit(errors);
  92         /* NOTREACHED */
  93 }
  94
  95 static int
  96 rm_path(char *path)
  97 {
  98         char *p;
  99
 100         while ((p = strrchr(path, '/')) != NULL) {
 101                 *p = 0;
 102                 if (p[1] == 0)
 103                         /* Ignore trailing '/' on deleted name */
 104                         continue;
 105
 106                 if (*path == 0)
 107                         /* At top level (root) directory */
 108                         break;
 109
 110                 if (rmdir(path) < 0) {
 111                         warn("%s", path);
 112                         return (1);
 113                 }
 114         }
 115
 116         return (0);
 117 }
 118
 119 static void
 120 usage(void)
 121 {
 122         (void)fprintf(stderr, "usage: %s [-p] directory ...\n", getprogname());
 123         exit(1);
 124         /* NOTREACHED */
 125 }