src/tests/write-closed2.c

   1 /*
   2  * Copyright (c) 2000 - 2001 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 #include <afsconfig.h>
  35 #include <afs/param.h>
  36
  37 #ifdef HAVE_CONFIG_H
  38 #include <config.h>
  39 #endif
  40
  41 #include <stdio.h>
  42 #include <stdlib.h>
  43 #include <string.h>
  44 #include <errno.h>
  45
  46 #include <sys/types.h>
  47 #include <sys/stat.h>
  48 #include <sys/mman.h>
  49 #ifdef HAVE_SYS_IOCCOM_H
  50 #include <sys/ioccom.h>
  51 #endif
  52 #include <sys/ioctl.h>
  53 #include <fcntl.h>
  54 #include <unistd.h>
  55 #include <dirent.h>
  56
  57 #include <err.h>
  58 #include <netinet/in.h>
  59 #include <afs/stds.h>
  60 #include <afs/vice.h>
  61 #include <afs/venus.h>
  62 #include <afs/sys_prototypes.h>
  63
  64 #ifndef MAP_FAILED
  65 #define MAP_FAILED ((void *)-1)
  66 #endif
  67
  68 static int
  69 set_acl(char *dir)
  70 {
  71     struct ViceIoctl a_params;
  72     char *foo = "1\n0\nsystem:anyuser 0\n";
  73
  74     a_params.in_size = strlen(foo);
  75     a_params.out_size = 0;
  76     a_params.in = foo;
  77     a_params.out = NULL;
  78
  79     return pioctl(dir, VIOCSETAL, &a_params, 1);
  80 }
  81
  82 static void
  83 doit(const char *filename)
  84 {
  85     int fd;
  86     int ret;
  87     void *buf;
  88
  89     ret = mkdir("bad", 0777);
  90     if (ret < 0)
  91         err(1, "mkdir bad");
  92
  93     ret = chdir("bad");
  94     if (ret < 0)
  95         err(1, "chdir bad");
  96
  97     fd = open(filename, O_RDWR | O_CREAT | O_TRUNC, 0600);
  98     if (fd < 0)
  99         err(1, "open %s", filename);
 100     ret = ftruncate(fd, 1);
 101     if (ret < 0)
 102         err(1, "ftruncate %s", filename);
 103     buf = mmap(NULL, 1, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
 104     if (buf == (void *)MAP_FAILED)
 105         err(1, "mmap");
 106     ret = set_acl(".");
 107     if (ret < 0)
 108         err(1, "setacl failed");
 109
 110     ret = close(fd);
 111     if (ret < 0)
 112         err(1, "close %s", filename);
 113     *((char *)buf) = 0x17;
 114     ret = munmap(buf, 1);
 115     if (ret < 0)
 116         err(1, "munmap");
 117 }
 118
 119 int
 120 main(int argc, char **argv)
 121 {
 122     const char *file = "foo";
 123
 124
 125     if (argc != 1 && argc != 2)
 126         errx(1, "usage: %s [file]", argv[0]);
 127     if (argc == 2)
 128         file = argv[1];
 129     doit(file);
 130     return 0;
 131 }