tests/kill-softly.c

   1 /*
   2  * Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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 #ifdef HAVE_CONFIG_H
  35 #include <config.h>
  36 #endif
  37
  38 #include <stdio.h>
  39 #include <stdlib.h>
  40 #include <string.h>
  41 #include <sys/types.h>
  42 #include <sys/stat.h>
  43 #include <fcntl.h>
  44 #include <unistd.h>
  45 #include <dirent.h>
  46
  47 #include <err.h>
  48 #include <roken.h>
  49
  50 #ifdef RCSID
  51 RCSID("$Id$");
  52 #endif
  53
  54 struct entry {
  55     char *name;
  56     int status;
  57 };
  58
  59 static void
  60 kill_one (struct entry *ents, int ind, int curents);
  61
  62 static void
  63 do_dir (const char *dirname);
  64
  65 static void
  66 kill_dir (const char *dirname);
  67
  68 static void
  69 kill_one (struct entry *ents, int ind, int curents)
  70 {
  71     int ret;
  72     int i;
  73
  74     ret = unlink (ents[ind].name);
  75     if (ret < 0) {
  76         if (errno == EISDIR || errno == EPERM)
  77             do_dir (ents[ind].name);
  78         else
  79             err (1, "unlink %s", ents[ind].name);
  80     }
  81     ents[ind].status = 0;
  82     for (i = 0; i <= ind; ++i) {
  83         struct stat sb;
  84
  85         ret = lstat (ents[i].name, &sb);
  86         if (ret == 0 || errno != ENOENT)
  87             err (1, "%s still exists?", ents[i].name);
  88     }
  89
  90     for (i = ind + 1; i < curents; ++i) {
  91         struct stat sb;
  92
  93         ret = lstat (ents[i].name, &sb);
  94         if (ret < 0)
  95             err (1, "stat %s", ents[i].name);
  96     }
  97 }
  98
  99 static void
 100 do_dir (const char *dirname)
 101 {
 102     int ret;
 103
 104     ret = chdir (dirname);
 105     if (ret < 0)
 106         err (1, "chdir %s", dirname);
 107     kill_dir (dirname);
 108     ret = chdir ("..");
 109     if (ret < 0)
 110         err (1, "chdir ..");
 111     ret = rmdir (dirname);
 112     if (ret < 0)
 113         err (1, "rmdir %s", dirname);
 114 }
 115
 116 static void
 117 kill_dir (const char *dirname)
 118 {
 119     struct entry *ents;
 120     int maxents;
 121     int curents = 0;
 122     DIR *dir;
 123     struct dirent *dp;
 124     int i;
 125
 126     dir = opendir (".");
 127     if (dir == NULL)
 128         err (1, "opendir %s", dirname);
 129     maxents = 10;
 130     ents = malloc (sizeof (*ents) * maxents);
 131     if (ents == NULL)
 132         err (1, "malloc");
 133     while ((dp = readdir (dir)) != NULL) {
 134         if (strcmp (dp->d_name, ".") == 0
 135             || strcmp (dp->d_name, "..") == 0)
 136             continue;
 137
 138         if (curents >= maxents) {
 139             maxents *= 2;
 140             ents = realloc (ents, sizeof(*ents) * maxents);
 141             if (ents == NULL)
 142                 err (1, "realloc");
 143         }
 144         ents[curents].name   = strdup (dp->d_name);
 145         ents[curents].status = 1;
 146         ++curents;
 147     }
 148     closedir (dir);
 149     for (i = 0; i < curents; ++i)
 150         kill_one (ents, i, curents);
 151     free (ents);
 152 }
 153
 154 int
 155 main(int argc, char **argv)
 156 {
 157     setprogname (argv[0]);
 158
 159     if (argc != 2)
 160         errx (1, "usage: %s directory", argv[0]);
 161     do_dir (argv[1]);
 162     return 0;
 163 }