src/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
  49 struct entry {
  50     char *name;
  51     int status;
  52 };
  53
  54 static void
  55   kill_one(struct entry *ents, int ind, int curents);
  56
  57 static void
  58   do_dir(const char *dirname);
  59
  60 static void
  61   kill_dir(const char *dirname);
  62
  63 static void
  64 kill_one(struct entry *ents, int ind, int curents)
  65 {
  66     int ret;
  67     int i;
  68
  69     ret = unlink(ents[ind].name);
  70     if (ret < 0) {
  71         if (errno == EISDIR || errno == EPERM)
  72             do_dir(ents[ind].name);
  73         else
  74             err(1, "unlink %s", ents[ind].name);
  75     }
  76     ents[ind].status = 0;
  77     for (i = 0; i <= ind; ++i) {
  78         struct stat sb;
  79
  80         ret = lstat(ents[i].name, &sb);
  81         if (ret == 0 || errno != ENOENT)
  82             err(1, "%s still exists?", ents[i].name);
  83     }
  84
  85     for (i = ind + 1; i < curents; ++i) {
  86         struct stat sb;
  87
  88         ret = lstat(ents[i].name, &sb);
  89         if (ret < 0)
  90             err(1, "stat %s", ents[i].name);
  91     }
  92 }
  93
  94 static void
  95 do_dir(const char *dirname)
  96 {
  97     int ret;
  98
  99     ret = chdir(dirname);
 100     if (ret < 0)
 101         err(1, "chdir %s", dirname);
 102     kill_dir(dirname);
 103     ret = chdir("..");
 104     if (ret < 0)
 105         err(1, "chdir ..");
 106     ret = rmdir(dirname);
 107     if (ret < 0)
 108         err(1, "rmdir %s", dirname);
 109 }
 110
 111 static void
 112 kill_dir(const char *dirname)
 113 {
 114     struct entry *ents;
 115     int maxents;
 116     int curents = 0;
 117     DIR *dir;
 118     struct dirent *dp;
 119     int i;
 120
 121     dir = opendir(".");
 122     if (dir == NULL)
 123         err(1, "opendir %s", dirname);
 124     maxents = 10;
 125     ents = malloc(sizeof(*ents) * maxents);
 126     if (ents == NULL)
 127         err(1, "malloc");
 128     while ((dp = readdir(dir)) != NULL) {
 129         if (strcmp(dp->d_name, ".") == 0 || strcmp(dp->d_name, "..") == 0)
 130             continue;
 131
 132         if (curents >= maxents) {
 133             maxents *= 2;
 134             ents = realloc(ents, sizeof(*ents) * maxents);
 135             if (ents == NULL)
 136                 err(1, "realloc");
 137         }
 138         ents[curents].name = strdup(dp->d_name);
 139         ents[curents].status = 1;
 140         ++curents;
 141     }
 142     closedir(dir);
 143     for (i = 0; i < curents; ++i)
 144         kill_one(ents, i, curents);
 145     free(ents);
 146 }
 147
 148 int
 149 main(int argc, char **argv)
 150 {
 151
 152     if (argc != 2)
 153         errx(1, "usage: %s directory", argv[0]);
 154     do_dir(argv[1]);
 155     return 0;
 156 }