mirror of
https://github.com/yarrick/iodine.git
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197 lines
5.3 KiB
C
197 lines
5.3 KiB
C
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/*
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* Copyright (c) 2006 Bjorn Andersson <flex@kryo.se>, Erik Ekman <yarrick@kryo.se>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <sys/stat.h>
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#include <arpa/nameser.h>
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#ifdef DARWIN
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#include <arpa/nameser8_compat.h>
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#endif
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <check.h>
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#include "structs.h"
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#include "encoding.h"
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#include "dns.h"
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#include "read.h"
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#include "test.h"
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START_TEST(test_read_putshort)
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{
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short tshort;
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short putted;
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short temps;
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char buf[4];
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short *s;
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char* p;
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int i;
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for (i = 0; i < 65536; i++) {
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tshort = (unsigned short) i;
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temps = htons(tshort);
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p = buf;
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putshort(&p, tshort);
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s = &putted;
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memcpy(s, buf, sizeof(short));
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fail_unless(putted == temps,
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va_str("Bad value on putshort for %d: %d != %d",
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i, putted, temps));
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s = &temps;
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memcpy(buf, s, sizeof(short));
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p = buf;
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readshort(NULL, &p, &temps);
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fail_unless(temps == tshort,
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va_str("Bad value on readshort for %d: %d != %d",
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i, temps, tshort));
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}
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}
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END_TEST
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START_TEST(test_read_putlong)
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{
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char buf[4];
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uint32_t putint;
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uint32_t tempi;
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uint32_t tint;
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uint32_t *l;
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char* p;
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int i;
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for (i = 0; i < 32; i++) {
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tint = 0xF << i;
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tempi = htonl(tint);
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p = buf;
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putlong(&p, tint);
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l = &putint;
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memcpy(l, buf, sizeof(uint32_t));
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fail_unless(putint == tempi,
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va_str("Bad value on putlong for %d: %d != %d",
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i, putint, tempi));
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l = &tempi;
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memcpy(buf, l, sizeof(uint32_t));
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p = buf;
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readlong(NULL, &p, &tempi);
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fail_unless(tempi == tint,
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va_str("Bad value on readlong for %d: %d != %d",
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i, tempi, tint));
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}
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}
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END_TEST
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START_TEST(test_read_name)
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{
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char emptyloop[] = {
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'A', 'A', 0x81, 0x80, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0xc0, 0x0c, 0x00, 0x01, 0x00, 0x01 };
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char infloop[] = {
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'A', 'A', 0x81, 0x80, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x01, 'A', 0xc0, 0x0c, 0x00, 0x01, 0x00, 0x01 };
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char longname[] =
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"AA\x81\x80\x00\x01\x00\x00\x00\x00\x00\x00"
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"\x3FzBCDEFGHIJKLMNOPQURSTUVXYZ0123456789abcdefghijklmnopqrstuvxyzAA"
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"\x3FzBCDEFGHIJKLMNOPQURSTUVXYZ0123456789abcdefghijklmnopqrstuvxyzAA"
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"\x3FzBCDEFGHIJKLMNOPQURSTUVXYZ0123456789abcdefghijklmnopqrstuvxyzAA"
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"\x3FzBCDEFGHIJKLMNOPQURSTUVXYZ0123456789abcdefghijklmnopqrstuvxyzAA"
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"\x3FzBCDEFGHIJKLMNOPQURSTUVXYZ0123456789abcdefghijklmnopqrstuvxyzAA"
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"\x3FzBCDEFGHIJKLMNOPQURSTUVXYZ0123456789abcdefghijklmnopqrstuvxyzAA"
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"\x00\x00\x01\x00\x01";
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char onejump[] =
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"AA\x81\x80\x00\x01\x00\x00\x00\x00\x00\x00"
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"\x02hh\xc0\x15\x00\x01\x00\x01\x05zBCDE\x00";
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char badjump[] = {
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'A', 'A', 0x81, 0x80, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0xfe, 0xcc, 0x00, 0x01, 0x00, 0x01 };
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char badjump2[] = {
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'A', 'A', 0x81, 0x80, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x02, 'B', 'A', 0xfe, 0xcc, 0x00, 0x01, 0x00, 0x01 };
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char *jumper;
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char buf[1024];
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char *data;
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int rv;
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memset(buf, 0, sizeof(buf));
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data = emptyloop + sizeof(HEADER);
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buf[1023] = 'A';
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rv = readname(emptyloop, sizeof(emptyloop), &data, buf, 1023);
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fail_unless(buf[1023] == 'A', NULL);
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memset(buf, 0, sizeof(buf));
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data = infloop + sizeof(HEADER);
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buf[4] = '\a';
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rv = readname(infloop, sizeof(infloop), &data, buf, 4);
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fail_unless(buf[4] == '\a', NULL);
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memset(buf, 0, sizeof(buf));
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data = longname + sizeof(HEADER);
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buf[256] = '\a';
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rv = readname(longname, sizeof(longname), &data, buf, 256);
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fail_unless(buf[256] == '\a', NULL);
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memset(buf, 0, sizeof(buf));
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data = onejump + sizeof(HEADER);
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rv = readname(onejump, sizeof(onejump), &data, buf, 256);
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fail_unless(rv == 9, NULL);
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// These two tests use malloc to cause segfault if jump is executed
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memset(buf, 0, sizeof(buf));
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jumper = malloc(sizeof(badjump));
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if (jumper) {
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memcpy(jumper, badjump, sizeof(badjump));
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data = jumper + sizeof(HEADER);
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rv = readname(jumper, sizeof(badjump), &data, buf, 256);
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fail_unless(rv == 0, NULL);
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}
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free(jumper);
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memset(buf, 0, sizeof(buf));
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jumper = malloc(sizeof(badjump2));
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if (jumper) {
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memcpy(jumper, badjump2, sizeof(badjump2));
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data = jumper + sizeof(HEADER);
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rv = readname(jumper, sizeof(badjump2), &data, buf, 256);
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/* XXX: This was 'strcmp("BA"...' changed to 'BA.', make sure this is correct */
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fail_unless(rv == 4, NULL);
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fail_unless(strcmp("BA.", buf) == 0,
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va_str("buf is not BA: %s", buf));
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}
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free(jumper);
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}
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END_TEST
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TCase *
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test_read_create_tests()
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{
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TCase *tc;
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tc = tcase_create("Read");
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tcase_add_test(tc, test_read_putshort);
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tcase_add_test(tc, test_read_putlong);
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tcase_add_test(tc, test_read_name);
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return tc;
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}
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