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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#undef _FORTIFY_SOURCE
#define _FORTIFY_SOURCE 1
#include <gtest/gtest.h>
#include <string.h>
#if __BIONIC__
// We have to say "DeathTest" here so gtest knows to run this test (which exits)
// in its own process.
// multibyte target where we over fill (should fail)
TEST(Fortify1_Clang_DeathTest, strcpy_fortified) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
char buf[10];
char *orig = strdup("0123456789");
ASSERT_EXIT(strcpy(buf, orig), testing::KilledBySignal(SIGABRT), "");
free(orig);
}
// zero sized target with "\0" source (should fail)
TEST(Fortify1_Clang_DeathTest, strcpy2_fortified) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
char buf[0];
char *orig = strdup("");
ASSERT_EXIT(strcpy(buf, orig), testing::KilledBySignal(SIGABRT), "");
free(orig);
}
// zero sized target with longer source (should fail)
TEST(Fortify1_Clang_DeathTest, strcpy3_fortified) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
char buf[0];
char *orig = strdup("1");
ASSERT_EXIT(strcpy(buf, orig), testing::KilledBySignal(SIGABRT), "");
free(orig);
}
// one byte target with longer source (should fail)
TEST(Fortify1_Clang_DeathTest, strcpy4_fortified) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
char buf[1];
char *orig = strdup("12");
ASSERT_EXIT(strcpy(buf, orig), testing::KilledBySignal(SIGABRT), "");
free(orig);
}
TEST(Fortify1_Clang_DeathTest, strlen_fortified) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
char buf[10];
memcpy(buf, "0123456789", sizeof(buf));
ASSERT_EXIT(printf("%d", strlen(buf)), testing::KilledBySignal(SIGABRT), "");
}
TEST(Fortify1_Clang_DeathTest, strchr_fortified) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
char buf[10];
memcpy(buf, "0123456789", sizeof(buf));
ASSERT_EXIT(printf("%s", strchr(buf, 'a')), testing::KilledBySignal(SIGABRT), "");
}
TEST(Fortify1_Clang_DeathTest, strrchr_fortified) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
char buf[10];
memcpy(buf, "0123456789", sizeof(buf));
ASSERT_EXIT(printf("%s", strrchr(buf, 'a')), testing::KilledBySignal(SIGABRT), "");
}
#endif
TEST(Fortify1_Clang_DeathTest, strncat_fortified) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
char buf[10];
size_t n = atoi("10"); // avoid compiler optimizations
strncpy(buf, "012345678", n);
ASSERT_EXIT(strncat(buf, "9", n), testing::KilledBySignal(SIGABRT), "");
}
TEST(Fortify1_Clang_DeathTest, strncat2_fortified) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
char buf[10];
buf[0] = '\0';
size_t n = atoi("10"); // avoid compiler optimizations
ASSERT_EXIT(strncat(buf, "0123456789", n), testing::KilledBySignal(SIGABRT), "");
}
TEST(Fortify1_Clang_DeathTest, strcat_fortified) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
char src[11];
strcpy(src, "0123456789");
char buf[10];
buf[0] = '\0';
ASSERT_EXIT(strcat(buf, src), testing::KilledBySignal(SIGABRT), "");
}
TEST(Fortify1_Clang_DeathTest, memmove_fortified) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
char buf[20];
strcpy(buf, "0123456789");
size_t n = atoi("10");
ASSERT_EXIT(memmove(buf + 11, buf, n), testing::KilledBySignal(SIGABRT), "");
}
TEST(Fortify1_Clang_DeathTest, memcpy_fortified) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
char bufa[10];
char bufb[10];
strcpy(bufa, "012345678");
size_t n = atoi("11");
ASSERT_EXIT(memcpy(bufb, bufa, n), testing::KilledBySignal(SIGABRT), "");
}
TEST(Fortify1_Clang_DeathTest, strncpy_fortified) {
::testing::FLAGS_gtest_death_test_style = "threadsafe";
char bufa[15];
char bufb[10];
strcpy(bufa, "01234567890123");
size_t n = strlen(bufa);
ASSERT_EXIT(strncpy(bufb, bufa, n), testing::KilledBySignal(SIGABRT), "");
}
extern "C" char* __strncat_chk(char*, const char*, size_t, size_t);
extern "C" char* __strcat_chk(char*, const char*, size_t);
TEST(Fortify1_Clang, strncat) {
char buf[10];
memset(buf, 'A', sizeof(buf));
buf[0] = 'a';
buf[1] = '\0';
char* res = __strncat_chk(buf, "01234", sizeof(buf) - strlen(buf) - 1, sizeof(buf));
ASSERT_EQ(buf, res);
ASSERT_EQ('a', buf[0]);
ASSERT_EQ('0', buf[1]);
ASSERT_EQ('1', buf[2]);
ASSERT_EQ('2', buf[3]);
ASSERT_EQ('3', buf[4]);
ASSERT_EQ('4', buf[5]);
ASSERT_EQ('\0', buf[6]);
ASSERT_EQ('A', buf[7]);
ASSERT_EQ('A', buf[8]);
ASSERT_EQ('A', buf[9]);
}
TEST(Fortify1_Clang, strncat2) {
char buf[10];
memset(buf, 'A', sizeof(buf));
buf[0] = 'a';
buf[1] = '\0';
char* res = __strncat_chk(buf, "0123456789", 5, sizeof(buf));
ASSERT_EQ(buf, res);
ASSERT_EQ('a', buf[0]);
ASSERT_EQ('0', buf[1]);
ASSERT_EQ('1', buf[2]);
ASSERT_EQ('2', buf[3]);
ASSERT_EQ('3', buf[4]);
ASSERT_EQ('4', buf[5]);
ASSERT_EQ('\0', buf[6]);
ASSERT_EQ('A', buf[7]);
ASSERT_EQ('A', buf[8]);
ASSERT_EQ('A', buf[9]);
}
TEST(Fortify1_Clang, strncat3) {
char buf[10];
memset(buf, 'A', sizeof(buf));
buf[0] = '\0';
char* res = __strncat_chk(buf, "0123456789", 5, sizeof(buf));
ASSERT_EQ(buf, res);
ASSERT_EQ('0', buf[0]);
ASSERT_EQ('1', buf[1]);
ASSERT_EQ('2', buf[2]);
ASSERT_EQ('3', buf[3]);
ASSERT_EQ('4', buf[4]);
ASSERT_EQ('\0', buf[5]);
ASSERT_EQ('A', buf[6]);
ASSERT_EQ('A', buf[7]);
ASSERT_EQ('A', buf[8]);
ASSERT_EQ('A', buf[9]);
}
TEST(Fortify1_Clang, strncat4) {
char buf[10];
memset(buf, 'A', sizeof(buf));
buf[9] = '\0';
char* res = __strncat_chk(buf, "", 5, sizeof(buf));
ASSERT_EQ(buf, res);
ASSERT_EQ('A', buf[0]);
ASSERT_EQ('A', buf[1]);
ASSERT_EQ('A', buf[2]);
ASSERT_EQ('A', buf[3]);
ASSERT_EQ('A', buf[4]);
ASSERT_EQ('A', buf[5]);
ASSERT_EQ('A', buf[6]);
ASSERT_EQ('A', buf[7]);
ASSERT_EQ('A', buf[8]);
ASSERT_EQ('\0', buf[9]);
}
TEST(Fortify1_Clang, strncat5) {
char buf[10];
memset(buf, 'A', sizeof(buf));
buf[0] = 'a';
buf[1] = '\0';
char* res = __strncat_chk(buf, "01234567", 8, sizeof(buf));
ASSERT_EQ(buf, res);
ASSERT_EQ('a', buf[0]);
ASSERT_EQ('0', buf[1]);
ASSERT_EQ('1', buf[2]);
ASSERT_EQ('2', buf[3]);
ASSERT_EQ('3', buf[4]);
ASSERT_EQ('4', buf[5]);
ASSERT_EQ('5', buf[6]);
ASSERT_EQ('6', buf[7]);
ASSERT_EQ('7', buf[8]);
ASSERT_EQ('\0', buf[9]);
}
TEST(Fortify1_Clang, strncat6) {
char buf[10];
memset(buf, 'A', sizeof(buf));
buf[0] = 'a';
buf[1] = '\0';
char* res = __strncat_chk(buf, "01234567", 9, sizeof(buf));
ASSERT_EQ(buf, res);
ASSERT_EQ('a', buf[0]);
ASSERT_EQ('0', buf[1]);
ASSERT_EQ('1', buf[2]);
ASSERT_EQ('2', buf[3]);
ASSERT_EQ('3', buf[4]);
ASSERT_EQ('4', buf[5]);
ASSERT_EQ('5', buf[6]);
ASSERT_EQ('6', buf[7]);
ASSERT_EQ('7', buf[8]);
ASSERT_EQ('\0', buf[9]);
}
TEST(Fortify1_Clang, strcat) {
char buf[10];
memset(buf, 'A', sizeof(buf));
buf[0] = 'a';
buf[1] = '\0';
char* res = __strcat_chk(buf, "01234", sizeof(buf));
ASSERT_EQ(buf, res);
ASSERT_EQ('a', buf[0]);
ASSERT_EQ('0', buf[1]);
ASSERT_EQ('1', buf[2]);
ASSERT_EQ('2', buf[3]);
ASSERT_EQ('3', buf[4]);
ASSERT_EQ('4', buf[5]);
ASSERT_EQ('\0', buf[6]);
ASSERT_EQ('A', buf[7]);
ASSERT_EQ('A', buf[8]);
ASSERT_EQ('A', buf[9]);
}
TEST(Fortify1_Clang, strcat2) {
char buf[10];
memset(buf, 'A', sizeof(buf));
buf[0] = 'a';
buf[1] = '\0';
char* res = __strcat_chk(buf, "01234567", sizeof(buf));
ASSERT_EQ(buf, res);
ASSERT_EQ('a', buf[0]);
ASSERT_EQ('0', buf[1]);
ASSERT_EQ('1', buf[2]);
ASSERT_EQ('2', buf[3]);
ASSERT_EQ('3', buf[4]);
ASSERT_EQ('4', buf[5]);
ASSERT_EQ('5', buf[6]);
ASSERT_EQ('6', buf[7]);
ASSERT_EQ('7', buf[8]);
ASSERT_EQ('\0', buf[9]);
}
__BIONIC_FORTIFY_INLINE
size_t test_fortify_inline(char* buf) {
return __bos(buf);
}
TEST(Fortify1_Clang, fortify_inline) {
char buf[1024];
// no-op. Prints nothing. Needed to prevent the compiler
// from optimizing out buf.
buf[0] = '\0';
printf("%s", buf);
ASSERT_EQ(sizeof(buf), test_fortify_inline(buf));
}
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