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/**
* Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0.
*/
#include <aws/common/byte_buf.h>
#include <aws/common/private/byte_buf.h>
#include <aws/testing/aws_test_harness.h>
#include <ctype.h>
#ifndef SSIZE_MAX
# define SSIZE_MAX (SIZE_MAX >> 1)
#endif
AWS_TEST_CASE(nospec_index_test, s_nospec_index_test_fn)
static int s_nospec_index_test_fn(struct aws_allocator *allocator, void *ctx) {
(void)allocator;
(void)ctx;
ASSERT_UINT_EQUALS(UINTPTR_MAX, aws_nospec_mask(0, 1));
ASSERT_UINT_EQUALS(0, aws_nospec_mask(0, 0));
ASSERT_UINT_EQUALS(UINTPTR_MAX, aws_nospec_mask(0, SSIZE_MAX));
ASSERT_UINT_EQUALS(0, aws_nospec_mask(0, SIZE_MAX));
ASSERT_UINT_EQUALS(0, aws_nospec_mask(1, 1));
ASSERT_UINT_EQUALS(UINTPTR_MAX, aws_nospec_mask(1, 2));
ASSERT_UINT_EQUALS(UINTPTR_MAX, aws_nospec_mask(1, 4));
ASSERT_UINT_EQUALS(UINTPTR_MAX, aws_nospec_mask(1, SSIZE_MAX));
ASSERT_UINT_EQUALS(0, aws_nospec_mask(1, SIZE_MAX));
ASSERT_UINT_EQUALS(0, aws_nospec_mask(1, 0));
ASSERT_UINT_EQUALS(0, aws_nospec_mask(4, 3));
ASSERT_UINT_EQUALS(0, aws_nospec_mask(4, 4));
ASSERT_UINT_EQUALS(UINTPTR_MAX, aws_nospec_mask(4, 5));
ASSERT_UINT_EQUALS(UINTPTR_MAX, aws_nospec_mask((SIZE_MAX >> 1) - 1, (SIZE_MAX >> 1)));
ASSERT_UINT_EQUALS(0, aws_nospec_mask((SIZE_MAX >> 1) + 1, (SIZE_MAX >> 1)));
ASSERT_UINT_EQUALS(0, aws_nospec_mask((SIZE_MAX >> 1), (SIZE_MAX >> 1) + 1));
return 0;
}
#define ASSERT_NOADVANCE(advlen, cursorlen) \
do { \
struct aws_byte_cursor cursor; \
cursor.ptr = (uint8_t *)&cursor; \
cursor.len = (cursorlen); \
struct aws_byte_cursor rv = advance(&cursor, (advlen)); \
ASSERT_NULL(rv.ptr, "advance(cursorlen=%s, advlen=%s) should fail", #cursorlen, #advlen); \
ASSERT_UINT_EQUALS(0, rv.len, "advance(cursorlen=%s, advlen=%s) should fail", #cursorlen, #advlen); \
} while (0)
#define ASSERT_ADVANCE(advlen, cursorlen) \
do { \
uint8_t *orig_cursor; \
struct aws_byte_cursor cursor; \
cursor.len = (cursorlen); \
cursor.ptr = orig_cursor = malloc(cursor.len); \
if (!cursor.ptr) { \
abort(); \
} \
struct aws_byte_cursor rv = advance(&cursor, (advlen)); \
ASSERT_PTR_EQUALS(orig_cursor, rv.ptr, "Wrong ptr in advance(cursorlen=%s, advlen=%s)", #cursorlen, #advlen); \
ASSERT_PTR_EQUALS(orig_cursor + (advlen), cursor.ptr, "Wrong new cursorptr in advance"); \
ASSERT_UINT_EQUALS((advlen), rv.len, "Wrong returned length"); \
ASSERT_UINT_EQUALS((cursorlen) - (advlen), cursor.len, "Wrong residual length"); \
free(orig_cursor); \
} while (0)
static int s_test_byte_cursor_advance_internal(
struct aws_byte_cursor (*advance)(struct aws_byte_cursor *cursor, size_t len)) {
ASSERT_ADVANCE(0, 1);
ASSERT_ADVANCE(1, 1);
ASSERT_NOADVANCE(2, 1);
ASSERT_ADVANCE(4, 5);
ASSERT_ADVANCE(5, 5);
ASSERT_NOADVANCE(6, 5);
ASSERT_NOADVANCE((SIZE_MAX >> 1) + 1, (SIZE_MAX >> 1));
ASSERT_NOADVANCE((SIZE_MAX >> 1), (SIZE_MAX >> 1) + 1);
return 0;
}
AWS_TEST_CASE(test_byte_cursor_advance, s_test_byte_cursor_advance_fn)
static int s_test_byte_cursor_advance_fn(struct aws_allocator *allocator, void *ctx) {
(void)allocator;
(void)ctx;
return s_test_byte_cursor_advance_internal(aws_byte_cursor_advance);
}
AWS_TEST_CASE(test_byte_cursor_advance_nospec, s_test_byte_cursor_advance_nospec_fn)
static int s_test_byte_cursor_advance_nospec_fn(struct aws_allocator *allocator, void *ctx) {
(void)allocator;
(void)ctx;
return s_test_byte_cursor_advance_internal(aws_byte_cursor_advance_nospec);
}
static const uint8_t TEST_VECTOR[] = {
0xaa, 0xbb, 0xaa, /* aba */
0xbb, 0xcc, 0xbb, /* bcb */
0x42, /* u8 */
0x12, 0x34, /* be16 */
0xab, 0xcd, 0xef, /* be24 */
0x45, 0x67, 0x89, 0xab, /* be32 */
0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, /* be64 */
0x42, 0x42, 0x42, /* u8_n */
};
AWS_TEST_CASE(byte_cursor_write_tests, s_byte_cursor_write_tests_fn);
static int s_byte_cursor_write_tests_fn(struct aws_allocator *allocator, void *ctx) {
(void)allocator;
(void)ctx;
uint8_t buf[sizeof(TEST_VECTOR) + 1];
memset(buf, 0, sizeof(buf));
buf[sizeof(buf) - 1] = 0x99;
struct aws_byte_buf cur = aws_byte_buf_from_empty_array(buf, sizeof(buf) - 1);
uint8_t aba[] = {0xaa, 0xbb, 0xaa};
uint8_t bcb[] = {0xbb, 0xcc, 0xbb};
ASSERT_TRUE(aws_byte_buf_write(&cur, aba, sizeof(aba)));
struct aws_byte_buf bcb_buf = aws_byte_buf_from_array(bcb, sizeof(bcb));
ASSERT_TRUE(aws_byte_buf_write_from_whole_buffer(&cur, bcb_buf));
ASSERT_TRUE(aws_byte_buf_write_u8(&cur, 0x42));
ASSERT_TRUE(aws_byte_buf_write_be16(&cur, 0x1234));
ASSERT_TRUE(aws_byte_buf_write_be24(&cur, 0xabcdef));
ASSERT_TRUE(aws_byte_buf_write_be32(&cur, 0x456789ab));
ASSERT_TRUE(aws_byte_buf_write_be64(&cur, (uint64_t)0x1122334455667788ULL));
ASSERT_TRUE(aws_byte_buf_write_u8_n(&cur, 0x42, 3));
ASSERT_FALSE(aws_byte_buf_write_u8(&cur, 0xFF));
ASSERT_UINT_EQUALS(0x99, buf[sizeof(buf) - 1]);
ASSERT_BIN_ARRAYS_EQUALS(TEST_VECTOR, sizeof(TEST_VECTOR), buf, sizeof(TEST_VECTOR));
return 0;
}
AWS_TEST_CASE(byte_cursor_read_tests, s_byte_cursor_read_tests_fn);
static int s_byte_cursor_read_tests_fn(struct aws_allocator *allocator, void *ctx) {
(void)allocator;
(void)ctx;
struct aws_byte_cursor cur = aws_byte_cursor_from_array(TEST_VECTOR, sizeof(TEST_VECTOR));
uint8_t aba[3] = {0};
uint8_t bcb[3] = {0};
ASSERT_TRUE(aws_byte_cursor_read(&cur, aba, sizeof(aba)));
struct aws_byte_buf buf = aws_byte_buf_from_empty_array(bcb, sizeof(bcb));
ASSERT_TRUE(aws_byte_cursor_read_and_fill_buffer(&cur, &buf));
uint8_t aba_expect[] = {0xaa, 0xbb, 0xaa}, bcb_expect[] = {0xbb, 0xcc, 0xbb};
ASSERT_BIN_ARRAYS_EQUALS(aba_expect, 3, aba, 3);
ASSERT_BIN_ARRAYS_EQUALS(bcb_expect, 3, bcb, 3);
uint8_t u8;
ASSERT_TRUE(aws_byte_cursor_read_u8(&cur, &u8));
ASSERT_UINT_EQUALS(u8, 0x42);
uint16_t u16;
ASSERT_TRUE(aws_byte_cursor_read_be16(&cur, &u16));
ASSERT_UINT_EQUALS(u16, 0x1234);
uint32_t u24;
ASSERT_TRUE(aws_byte_cursor_read_be24(&cur, &u24));
ASSERT_UINT_EQUALS(u24, 0xabcdef);
uint32_t u32;
ASSERT_TRUE(aws_byte_cursor_read_be32(&cur, &u32));
ASSERT_UINT_EQUALS(u32, 0x456789ab);
uint64_t u64;
ASSERT_TRUE(aws_byte_cursor_read_be64(&cur, &u64));
ASSERT_UINT_EQUALS(u64, (uint64_t)0x1122334455667788ULL);
/* advance past "u8_n" data */
ASSERT_UINT_EQUALS(3, aws_byte_cursor_advance(&cur, 3).len);
ASSERT_FALSE(aws_byte_cursor_read_u8(&cur, &u8));
ASSERT_UINT_EQUALS(u8, 0x42);
return 0;
}
AWS_TEST_CASE(byte_cursor_limit_tests, s_byte_cursor_limit_tests_fn);
static int s_byte_cursor_limit_tests_fn(struct aws_allocator *allocator, void *ctx) {
(void)allocator;
(void)ctx;
uint8_t buf[] = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08};
uint8_t starting_buf[sizeof(buf)];
memcpy(starting_buf, buf, sizeof(buf));
struct aws_byte_cursor cur = aws_byte_cursor_from_array(buf, sizeof(buf));
struct aws_byte_buf buffer = aws_byte_buf_from_empty_array(buf, sizeof(buf));
uint64_t u64 = 0;
uint32_t u32 = 0;
uint16_t u16 = 0;
uint8_t u8 = 0;
uint8_t arr[2] = {0};
struct aws_byte_buf arrbuf = aws_byte_buf_from_array(arr, sizeof(arr));
cur.len = 7;
buffer.capacity = 7;
ASSERT_FALSE(aws_byte_cursor_read_be64(&cur, &u64));
ASSERT_UINT_EQUALS(0, u64);
ASSERT_FALSE(aws_byte_buf_write_be64(&buffer, 0));
ASSERT_BIN_ARRAYS_EQUALS(buf, sizeof(buf), starting_buf, sizeof(starting_buf));
cur.len = 3;
buffer.capacity = 3;
ASSERT_FALSE(aws_byte_cursor_read_be32(&cur, &u32));
ASSERT_UINT_EQUALS(0, u32);
ASSERT_FALSE(aws_byte_buf_write_be32(&buffer, 0));
ASSERT_BIN_ARRAYS_EQUALS(buf, sizeof(buf), starting_buf, sizeof(starting_buf));
cur.len = 2;
buffer.capacity = 2;
ASSERT_FALSE(aws_byte_cursor_read_be32(&cur, &u32));
ASSERT_UINT_EQUALS(0, u32);
ASSERT_FALSE(aws_byte_buf_write_be24(&buffer, 0));
ASSERT_BIN_ARRAYS_EQUALS(buf, sizeof(buf), starting_buf, sizeof(starting_buf));
cur.len = 1;
buffer.capacity = 1;
ASSERT_FALSE(aws_byte_cursor_read_be16(&cur, &u16));
ASSERT_UINT_EQUALS(0, u16);
ASSERT_FALSE(aws_byte_buf_write_be16(&buffer, 0));
ASSERT_FALSE(aws_byte_cursor_read(&cur, arr, sizeof(arr)));
ASSERT_FALSE(aws_byte_buf_write_from_whole_buffer(&buffer, arrbuf));
ASSERT_FALSE(aws_byte_cursor_read_and_fill_buffer(&cur, &arrbuf));
ASSERT_BIN_ARRAYS_EQUALS(buf, sizeof(buf), starting_buf, sizeof(starting_buf));
ASSERT_UINT_EQUALS(0, arr[0]);
ASSERT_UINT_EQUALS(0, arr[1]);
cur.len = 0;
aws_byte_buf_clean_up(&buffer);
ASSERT_FALSE(aws_byte_cursor_read_u8(&cur, &u8));
ASSERT_UINT_EQUALS(0, u8);
ASSERT_FALSE(aws_byte_buf_write_u8(&buffer, 0));
ASSERT_BIN_ARRAYS_EQUALS(buf, sizeof(buf), starting_buf, sizeof(starting_buf));
ASSERT_FALSE(aws_byte_buf_write_u8_n(&buffer, 0x0, 8));
ASSERT_BIN_ARRAYS_EQUALS(buf, sizeof(buf), starting_buf, sizeof(starting_buf));
ASSERT_TRUE(aws_byte_cursor_read(&cur, arr, 0));
ASSERT_TRUE(aws_byte_buf_write(&buffer, arr, 0));
aws_byte_buf_clean_up(&arrbuf);
ASSERT_TRUE(aws_byte_cursor_read_and_fill_buffer(&cur, &arrbuf));
ASSERT_TRUE(aws_byte_buf_write_from_whole_buffer(&buffer, arrbuf));
ASSERT_UINT_EQUALS(0, arr[0]);
ASSERT_UINT_EQUALS(0, arr[1]);
return 0;
}
AWS_TEST_CASE(test_byte_cursor_read_hex_u8, s_test_byte_cursor_read_hex_u8)
static int s_test_byte_cursor_read_hex_u8(struct aws_allocator *allocator, void *ctx) {
(void)allocator;
(void)ctx;
struct aws_byte_cursor cur;
uint8_t val = 0;
cur = aws_byte_cursor_from_c_str("90");
ASSERT_TRUE(aws_byte_cursor_read_hex_u8(&cur, &val));
ASSERT_UINT_EQUALS(0x90, val);
ASSERT_UINT_EQUALS(0, cur.len);
cur = aws_byte_cursor_from_c_str("001");
ASSERT_TRUE(aws_byte_cursor_read_hex_u8(&cur, &val));
ASSERT_UINT_EQUALS(0x00, val);
ASSERT_UINT_EQUALS(1, cur.len);
ASSERT_UINT_EQUALS('1', cur.ptr[0]);
cur = aws_byte_cursor_from_c_str("Fa");
ASSERT_TRUE(aws_byte_cursor_read_hex_u8(&cur, &val));
ASSERT_UINT_EQUALS(0xFA, val);
ASSERT_UINT_EQUALS(0, cur.len);
/* bad short buffer */
cur = aws_byte_cursor_from_c_str("0");
ASSERT_FALSE(aws_byte_cursor_read_hex_u8(&cur, &val));
ASSERT_UINT_EQUALS(1, cur.len);
cur.len = 0;
ASSERT_FALSE(aws_byte_cursor_read_hex_u8(&cur, &val));
ASSERT_UINT_EQUALS(0, cur.len);
/* bad characters */
uint8_t bad_chars[][2] = {
{'0', 0},
{'-', '0'},
{'/', '0'},
{'g', '0'},
{'x', '0'},
};
for (size_t i = 0; i < AWS_ARRAY_SIZE(bad_chars); ++i) {
cur = aws_byte_cursor_from_array(bad_chars[i], 2);
ASSERT_FALSE(aws_byte_cursor_read_hex_u8(&cur, &val));
ASSERT_UINT_EQUALS(2, cur.len);
}
return 0;
}
#define TEST_STRING "hello"
static const char *s_empty = "";
static const char *s_all_whitespace = " \t\r\n ";
static const char *s_left_whitespace = "\t \r" TEST_STRING;
static const char *s_right_whitespace = TEST_STRING " \r \t \n";
static const char *s_both_whitespace = " \t \r\n " TEST_STRING " \r \t \n";
static const char *expected_non_empty_result = TEST_STRING;
static int s_test_byte_cursor_right_trim_empty(struct aws_allocator *allocator, void *ctx) {
(void)ctx;
(void)allocator;
struct aws_byte_cursor test_cursor = aws_byte_cursor_from_c_str(s_empty);
struct aws_byte_cursor result = aws_byte_cursor_right_trim_pred(&test_cursor, aws_isspace);
ASSERT_TRUE(result.len == 0);
return 0;
}
AWS_TEST_CASE(test_byte_cursor_right_trim_empty, s_test_byte_cursor_right_trim_empty)
static int s_test_byte_cursor_right_trim_all_whitespace(struct aws_allocator *allocator, void *ctx) {
(void)ctx;
(void)allocator;
struct aws_byte_cursor test_cursor = aws_byte_cursor_from_c_str(s_all_whitespace);
struct aws_byte_cursor result = aws_byte_cursor_right_trim_pred(&test_cursor, aws_isspace);
ASSERT_TRUE(result.len == 0);
return 0;
}
AWS_TEST_CASE(test_byte_cursor_right_trim_all_whitespace, s_test_byte_cursor_right_trim_all_whitespace)
static int s_test_byte_cursor_right_trim_basic(struct aws_allocator *allocator, void *ctx) {
(void)ctx;
(void)allocator;
struct aws_byte_cursor test_cursor = aws_byte_cursor_from_c_str(s_right_whitespace);
struct aws_byte_cursor result = aws_byte_cursor_right_trim_pred(&test_cursor, aws_isspace);
size_t expected_length = strlen(expected_non_empty_result);
ASSERT_TRUE(strncmp((const char *)result.ptr, expected_non_empty_result, expected_length) == 0);
ASSERT_TRUE(result.len == expected_length);
return 0;
}
AWS_TEST_CASE(test_byte_cursor_right_trim_basic, s_test_byte_cursor_right_trim_basic)
static int s_test_byte_cursor_left_trim_empty(struct aws_allocator *allocator, void *ctx) {
(void)ctx;
(void)allocator;
struct aws_byte_cursor test_cursor = aws_byte_cursor_from_c_str(s_empty);
struct aws_byte_cursor result = aws_byte_cursor_right_trim_pred(&test_cursor, aws_isspace);
ASSERT_TRUE(result.len == 0);
return 0;
}
AWS_TEST_CASE(test_byte_cursor_left_trim_empty, s_test_byte_cursor_left_trim_empty)
static int s_test_byte_cursor_left_trim_all_whitespace(struct aws_allocator *allocator, void *ctx) {
(void)ctx;
(void)allocator;
struct aws_byte_cursor test_cursor = aws_byte_cursor_from_c_str(s_all_whitespace);
struct aws_byte_cursor result = aws_byte_cursor_right_trim_pred(&test_cursor, aws_isspace);
ASSERT_TRUE(result.len == 0);
return 0;
}
AWS_TEST_CASE(test_byte_cursor_left_trim_all_whitespace, s_test_byte_cursor_left_trim_all_whitespace)
static int s_test_byte_cursor_left_trim_basic(struct aws_allocator *allocator, void *ctx) {
(void)ctx;
(void)allocator;
struct aws_byte_cursor test_cursor = aws_byte_cursor_from_c_str(s_left_whitespace);
struct aws_byte_cursor result = aws_byte_cursor_left_trim_pred(&test_cursor, aws_isspace);
ASSERT_TRUE(strcmp((const char *)result.ptr, expected_non_empty_result) == 0);
return 0;
}
AWS_TEST_CASE(test_byte_cursor_left_trim_basic, s_test_byte_cursor_left_trim_basic)
static int s_test_byte_cursor_trim_basic(struct aws_allocator *allocator, void *ctx) {
(void)ctx;
(void)allocator;
struct aws_byte_cursor test_cursor = aws_byte_cursor_from_c_str(s_both_whitespace);
struct aws_byte_cursor result = aws_byte_cursor_trim_pred(&test_cursor, aws_isspace);
size_t expected_length = strlen(expected_non_empty_result);
ASSERT_TRUE(strncmp((const char *)result.ptr, expected_non_empty_result, expected_length) == 0);
ASSERT_TRUE(result.len == expected_length);
return 0;
}
AWS_TEST_CASE(test_byte_cursor_trim_basic, s_test_byte_cursor_trim_basic)
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