92aa909ab6
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@11362 ec53bebd-3082-4978-b11e-865c3cabbd6b
130 lines
3.5 KiB
C
130 lines
3.5 KiB
C
/*
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* Copyright (c) 2002 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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RCSID("$Id$");
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#endif
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#include <sys/types.h>
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#ifdef HAVE_SYS_MMAN_H
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#include <sys/mman.h>
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#endif
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#include <fcntl.h>
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#include "roken.h"
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#include "resolve.h"
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struct dns_reply*
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parse_reply(const unsigned char *, size_t);
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enum { MAX_BUF = 36};
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static struct testcase {
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unsigned char buf[MAX_BUF];
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size_t buf_len;
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} tests[] = {
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{{0x12, 0x67, 0x84, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
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0x03, 'f', 'o', 'o', 0x00,
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0x00, 0x10, 0x00, 0x01,
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0x03, 'f', 'o', 'o', 0x00,
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0x00, 0x10, 0x00, 0x01,
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0x00, 0x00, 0x12, 0x67, 0xff, 0xff}, 36}
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};
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#ifndef MAP_FAILED
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#define MAP_FAILED (-1)
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#endif
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static sig_atomic_t val = 0;
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static RETSIGTYPE
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segv_handler(int sig)
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{
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val = 1;
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}
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int
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main(int argc, char **argv)
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{
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#ifndef HAVE_MMAP
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return 77; /* signal to automake that this test
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cannot be run */
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#else /* HAVE_MMAP */
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int ret;
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int i;
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struct sigaction sa;
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sigemptyset (&sa.sa_mask);
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sa.sa_flags = 0;
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sa.sa_handler = segv_handler;
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sigaction (SIGSEGV, &sa, NULL);
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for (i = 0; val == 0 && i < sizeof(tests)/sizeof(tests[0]); ++i) {
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const struct testcase *t = &tests[i];
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unsigned char *p1, *p2;
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int flags;
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int fd;
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size_t pagesize = getpagesize();
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unsigned char *buf;
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#ifdef MAP_ANON
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flags = MAP_ANON;
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fd = -1;
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#else
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flags = 0;
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fd = open ("/dev/zero", O_RDONLY);
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if(fd < 0)
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err (1, "open /dev/zero");
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#endif
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flags |= MAP_PRIVATE;
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p1 = (char *)mmap(0, 2 * pagesize, PROT_READ | PROT_WRITE,
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flags, fd, 0);
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if (p1 == (unsigned char *)MAP_FAILED)
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err (1, "mmap");
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p2 = p1 + pagesize;
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ret = mprotect (p2, pagesize, 0);
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if (ret < 0)
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err (1, "mprotect");
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buf = p2 - t->buf_len;
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memcpy (buf, t->buf, t->buf_len);
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parse_reply (buf, t->buf_len);
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ret = munmap (p1, 2 * pagesize);
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if (ret < 0)
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err (1, "munmap");
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}
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return val;
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#endif /* HAVE_MMAP */
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}
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