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/*
* Copyright (c) 2006-2009 Bjorn Andersson <flex@kryo.se>, Erik Ekman <yarrick@kryo.se>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/stat.h>
#include <arpa/nameser.h>
#ifdef DARWIN
#include <arpa/nameser8_compat.h>
#endif
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <check.h>
#include "common.h"
#include "encoding.h"
#include "dns.h"
#include "read.h"
#include "test.h"
START_TEST(test_read_putshort)
{
unsigned short k;
unsigned short l;
char* p;
int i;
for (i = 0; i < 65536; i++) {
p = (char*)&k;
putshort(&p, i);
fail_unless(ntohs(k) == i,
"Bad value on putshort for %d: %d != %d",
i, ntohs(k), i);
p = (char*)&k;
readshort(NULL, &p, (short *) &l);
fail_unless(l == i,
"Bad value on readshort for %d: %d != %d",
i, l, i);
}
}
END_TEST
START_TEST(test_read_putlong)
{
uint32_t k;
uint32_t l;
char* p;
int i;
int j;
for (i = 0; i < 32; i++) {
p = (char*)&k;
j = 0xf << i;
putlong(&p, j);
fail_unless(ntohl(k) == j,
"Bad value on putlong for %d: %d != %d", i, ntohl(j), j);
p = (char*)&k;
readlong(NULL, &p, &l);
fail_unless(l == j,
"Bad value on readlong for %d: %d != %d", i, l, j);
}
}
END_TEST
START_TEST(test_read_name_empty_loop)
{
unsigned char emptyloop[] = {
'A', 'A', 0x81, 0x80, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xc0, 0x0c, 0x00, 0x01, 0x00, 0x01 };
char buf[1024];
char *data;
int rv;
memset(buf, 0, sizeof(buf));
data = (char*) emptyloop + sizeof(HEADER);
buf[1023] = 'A';
rv = readname((char *) emptyloop, sizeof(emptyloop), &data, buf, 1023);
fail_unless(buf[1023] == 'A');
}
END_TEST
START_TEST(test_read_name_inf_loop)
{
unsigned char infloop[] = {
'A', 'A', 0x81, 0x80, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 'A', 0xc0, 0x0c, 0x00, 0x01, 0x00, 0x01 };
char buf[1024];
char *data;
int rv;
memset(buf, 0, sizeof(buf));
data = (char*) infloop + sizeof(HEADER);
buf[4] = '\a';
rv = readname((char*) infloop, sizeof(infloop), &data, buf, 4);
fail_unless(buf[4] == '\a');
}
END_TEST
START_TEST(test_read_name_longname)
{
unsigned char longname[] =
"AA\x81\x80\x00\x01\x00\x00\x00\x00\x00\x00"
"\x3FzBCDEFGHIJKLMNOPQURSTUVXYZ0123456789abcdefghijklmnopqrstuvxyzAA"
"\x3FzBCDEFGHIJKLMNOPQURSTUVXYZ0123456789abcdefghijklmnopqrstuvxyzAA"
"\x3FzBCDEFGHIJKLMNOPQURSTUVXYZ0123456789abcdefghijklmnopqrstuvxyzAA"
"\x3FzBCDEFGHIJKLMNOPQURSTUVXYZ0123456789abcdefghijklmnopqrstuvxyzAA"
"\x3FzBCDEFGHIJKLMNOPQURSTUVXYZ0123456789abcdefghijklmnopqrstuvxyzAA"
"\x3FzBCDEFGHIJKLMNOPQURSTUVXYZ0123456789abcdefghijklmnopqrstuvxyzAA"
"\x00\x00\x01\x00\x01";
char buf[1024];
char *data;
int rv;
memset(buf, 0, sizeof(buf));
data = (char*) longname + sizeof(HEADER);
buf[256] = '\a';
rv = readname((char*) longname, sizeof(longname), &data, buf, 256);
fail_unless(buf[256] == '\a');
}
END_TEST
START_TEST(test_read_name_onejump)
{
unsigned char onejump[] =
"AA\x81\x80\x00\x01\x00\x00\x00\x00\x00\x00"
"\x02hh\xc0\x15\x00\x01\x00\x01\x05zBCDE\x00";
char buf[1024];
char *data;
int rv;
memset(buf, 0, sizeof(buf));
data = (char*) onejump + sizeof(HEADER);
rv = readname((char*) onejump, sizeof(onejump), &data, buf, 256);
fail_unless(rv == 9);
}
END_TEST
START_TEST(test_read_name_badjump_start)
{
unsigned char badjump[] = {
'A', 'A', 0x81, 0x80, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xfe, 0xcc, 0x00, 0x01, 0x00, 0x01 };
unsigned char *jumper;
char buf[1024];
char *data;
int rv;
/* This test uses malloc to cause segfault if jump is executed */
memset(buf, 0, sizeof(buf));
jumper = malloc(sizeof(badjump));
if (jumper) {
memcpy(jumper, badjump, sizeof(badjump));
data = (char*) jumper + sizeof(HEADER);
rv = readname((char*) jumper, sizeof(badjump), &data, buf, 256);
fail_unless(rv == 0);
fail_unless(buf[0] == 0);
}
free(jumper);
}
END_TEST
START_TEST(test_read_name_badjump_second)
{
unsigned char badjump2[] = {
'A', 'A', 0x81, 0x80, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02, 'B', 'A', 0xfe, 0xcc, 0x00, 0x01, 0x00, 0x01 };
unsigned char *jumper;
char buf[1024];
char *data;
int rv;
/* This test uses malloc to cause segfault if jump is executed */
memset(buf, 0, sizeof(buf));
jumper = malloc(sizeof(badjump2));
if (jumper) {
memcpy(jumper, badjump2, sizeof(badjump2));
data = (char*) jumper + sizeof(HEADER);
rv = readname((char*) jumper, sizeof(badjump2), &data, buf, 256);
fail_unless(rv == 4);
fail_unless(strcmp("BA.", buf) == 0,
"buf is not BA: %s", buf);
}
free(jumper);
}
END_TEST
START_TEST(test_putname)
{
char out[] = "\x06" "BADGER\x06" "BADGER\x04" "KRYO\x02" "SE\x00";
char buf[256];
char *domain = "BADGER.BADGER.KRYO.SE";
char *b;
int len;
int ret;
len = 256;
memset(buf, 0, 256);
b = buf;
ret = putname(&b, 256, domain);
fail_unless(ret == strlen(domain) + 1);
fail_unless(strncmp(buf, out, ret) == 0, "Happy flow failed");
}
END_TEST
START_TEST(test_putname_nodot)
{
char buf[256];
char *nodot =
"ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ"
"ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ";
char *b;
int len;
int ret;
len = 256;
memset(buf, 0, 256);
b = buf;
ret = putname(&b, 256, nodot);
fail_unless(ret == -1);
fail_unless(b == buf);
}
END_TEST
START_TEST(test_putname_toolong)
{
char buf[256];
char *toolong =
"ABCDEFGHIJKLMNOPQRSTUVWXYZ.ABCDEFGHIJKLMNOPQRSTUVWXYZ."
"ABCDEFGHIJKLMNOPQRSTUVWXYZ.ABCDEFGHIJKLMNOPQRSTUVWXYZ."
"ABCDEFGHIJKLMNOPQRSTUVWXYZ.ABCDEFGHIJKLMNOPQRSTUVWXYZ."
"ABCDEFGHIJKLMNOPQRSTUVWXYZ.ABCDEFGHIJKLMNOPQRSTUVWXYZ."
"ABCDEFGHIJKLMNOPQRSTUVWXYZ.ABCDEFGHIJKLMNOPQRSTUVWXYZ."
"ABCDEFGHIJKLMNOPQRSTUVWXYZ.ABCDEFGHIJKLMNOPQRSTUVWXYZ.";
char *b;
int len;
int ret;
len = 256;
memset(buf, 0, 256);
b = buf;
ret = putname(&b, 256, toolong);
fail_unless(ret == -1);
fail_unless(b == buf);
}
END_TEST
TCase *
test_read_create_tests()
{
TCase *tc;
tc = tcase_create("Read");
tcase_set_timeout(tc, 60);
tcase_add_test(tc, test_read_putshort);
tcase_add_test(tc, test_read_putlong);
tcase_add_test(tc, test_read_name_empty_loop);
tcase_add_test(tc, test_read_name_inf_loop);
tcase_add_test(tc, test_read_name_longname);
tcase_add_test(tc, test_read_name_onejump);
tcase_add_test(tc, test_read_name_badjump_start);
tcase_add_test(tc, test_read_name_badjump_second);
tcase_add_test(tc, test_putname);
tcase_add_test(tc, test_putname_nodot);
tcase_add_test(tc, test_putname_toolong);
return tc;
}
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