tests/kill-softer.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 static FILE *verbose;
  55
  56 struct entry {
  57     char *name;
  58     int status;
  59 };
  60
  61 static void
  62 kill_one (struct entry *ents, int ind, int curents);
  63
  64 static void
  65 do_dir (const char *dirname);
  66
  67 static void
  68 kill_dir (const char *dirname);
  69
  70 static void
  71 kill_one (struct entry *ents, int ind, int curents)
  72 {
  73     int ret;
  74     int i;
  75
  76     ret = unlink (ents[ind].name);
  77     if (ret < 0) {
  78         if (errno == EISDIR || errno == EPERM)
  79             do_dir (ents[ind].name);
  80         else
  81             err (1, "unlink %s", ents[ind].name);
  82     }
  83     ents[ind].status = 0;
  84     for (i = 0; i <= ind; ++i) {
  85         struct stat sb;
  86
  87         ret = lstat (ents[i].name, &sb);
  88         if (ret == 0 || errno != ENOENT)
  89             err (1, "%s still exists?", ents[i].name);
  90     }
  91
  92     for (i = ind + 1; i < curents; ++i) {
  93         struct stat sb;
  94
  95         ret = lstat (ents[i].name, &sb);
  96         if (ret < 0)
  97             err (1, "stat %s", ents[i].name);
  98     }
  99 }
 100
 101 static void
 102 do_dir (const char *dirname)
 103 {
 104     int ret;
 105
 106     ret = chdir (dirname);
 107     if (ret < 0)
 108         err (1, "chdir %s", dirname);
 109     kill_dir (dirname);
 110     ret = chdir ("..");
 111     if (ret < 0)
 112         err (1, "chdir ..");
 113     ret = rmdir (dirname);
 114     if (ret < 0)
 115         err (1, "rmdir %s", dirname);
 116 }
 117
 118 static void
 119 kill_dir (const char *dirname)
 120 {
 121     struct entry *ents;
 122     int maxents;
 123     int curents = 0;
 124     DIR *dir;
 125     struct dirent *dp;
 126     int i;
 127
 128     fprintf (verbose, "reading %s\n", dirname);
 129
 130     dir = opendir (".");
 131     if (dir == NULL)
 132         err (1, "opendir %s", dirname);
 133     maxents = 10;
 134     ents = malloc (sizeof (*ents) * maxents);
 135     if (ents == NULL)
 136         err (1, "malloc");
 137     while ((dp = readdir (dir)) != NULL) {
 138         if (strcmp (dp->d_name, ".") == 0
 139             || strcmp (dp->d_name, "..") == 0)
 140             continue;
 141
 142         if (curents >= maxents) {
 143             maxents *= 2;
 144             ents = realloc (ents, sizeof(*ents) * maxents);
 145             if (ents == NULL)
 146                 err (1, "realloc");
 147         }
 148         ents[curents].name   = strdup (dp->d_name);
 149         ents[curents].status = 1;
 150         ++curents;
 151         fprintf (verbose, "  adding %s\n", dp->d_name);
 152     }
 153     closedir (dir);
 154     dir = opendir (".");
 155     if (dir == NULL)
 156         err (1, "opendir %s", dirname);
 157     i = 0;
 158     while((dp = readdir (dir)) != NULL) {
 159         if (strcmp (dp->d_name, ".") == 0
 160             || strcmp (dp->d_name, "..") == 0)
 161             continue;
 162
 163         if (strcmp (ents[i].name, dp->d_name) != 0) {
 164             errx (1, "%s != %s", ents[i].name, dp->d_name);
 165         }
 166         fprintf (verbose, "  deleting %s\n", ents[i].name);
 167         kill_one (ents, i, curents);
 168         ++i;
 169     }
 170     if (i != curents)
 171         errx (1, "missing %d entries in %s", curents - i, dirname);
 172     closedir (dir);
 173     free (ents);
 174     fprintf (verbose, "end of %s\n", dirname);
 175 }
 176
 177 int
 178 main(int argc, char **argv)
 179 {
 180     setprogname (argv[0]);
 181
 182     verbose = fdopen (4, "w");
 183     if (verbose == NULL) {
 184         verbose = fopen ("/dev/null", "w");
 185         if (verbose == NULL)
 186             err (1, "fopen /dev/null");
 187     }
 188
 189     if (argc != 2)
 190         errx (1, "usage: %s directory", argv[0]);
 191     do_dir (argv[1]);
 192     return 0;
 193 }