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Diffstat (limited to '')
| -rw-r--r-- | tests/test_index.c | 736 |
1 files changed, 736 insertions, 0 deletions
diff --git a/tests/test_index.c b/tests/test_index.c new file mode 100644 index 0000000..31b958d --- /dev/null +++ b/tests/test_index.c @@ -0,0 +1,736 @@ +/////////////////////////////////////////////////////////////////////////////// +// +/// \file test_index.c +/// \brief Tests functions handling the lzma_index structure +// +// Author: Lasse Collin +// +// This file has been put into the public domain. +// You can do whatever you want with this file. +// +/////////////////////////////////////////////////////////////////////////////// + +#include "tests.h" + +#define MEMLIMIT (LZMA_VLI_C(1) << 20) + +#define SMALL_COUNT 3 +#define BIG_COUNT 5555 + + +static lzma_index * +create_empty(void) +{ + lzma_index *i = lzma_index_init(NULL); + expect(i != NULL); + return i; +} + + +static lzma_index * +create_small(void) +{ + lzma_index *i = lzma_index_init(NULL); + expect(i != NULL); + expect(lzma_index_append(i, NULL, 101, 555) == LZMA_OK); + expect(lzma_index_append(i, NULL, 602, 777) == LZMA_OK); + expect(lzma_index_append(i, NULL, 804, 999) == LZMA_OK); + return i; +} + + +static lzma_index * +create_big(void) +{ + lzma_index *i = lzma_index_init(NULL); + expect(i != NULL); + + lzma_vli total_size = 0; + lzma_vli uncompressed_size = 0; + + // Add pseudo-random sizes (but always the same size values). + uint32_t n = 11; + for (size_t j = 0; j < BIG_COUNT; ++j) { + n = 7019 * n + 7607; + const uint32_t t = n * 3011; + expect(lzma_index_append(i, NULL, t, n) == LZMA_OK); + total_size += (t + 3) & ~LZMA_VLI_C(3); + uncompressed_size += n; + } + + expect(lzma_index_block_count(i) == BIG_COUNT); + expect(lzma_index_total_size(i) == total_size); + expect(lzma_index_uncompressed_size(i) == uncompressed_size); + expect(lzma_index_total_size(i) + lzma_index_size(i) + + 2 * LZMA_STREAM_HEADER_SIZE + == lzma_index_stream_size(i)); + + return i; +} + + +static bool +is_equal(const lzma_index *a, const lzma_index *b) +{ + // Compare only the Stream and Block sizes and offsets. + lzma_index_iter ra, rb; + lzma_index_iter_init(&ra, a); + lzma_index_iter_init(&rb, b); + + while (true) { + bool reta = lzma_index_iter_next(&ra, LZMA_INDEX_ITER_ANY); + bool retb = lzma_index_iter_next(&rb, LZMA_INDEX_ITER_ANY); + if (reta) + return !(reta ^ retb); + + if (ra.stream.number != rb.stream.number + || ra.stream.block_count + != rb.stream.block_count + || ra.stream.compressed_offset + != rb.stream.compressed_offset + || ra.stream.uncompressed_offset + != rb.stream.uncompressed_offset + || ra.stream.compressed_size + != rb.stream.compressed_size + || ra.stream.uncompressed_size + != rb.stream.uncompressed_size + || ra.stream.padding + != rb.stream.padding) + return false; + + if (ra.stream.block_count == 0) + continue; + + if (ra.block.number_in_file != rb.block.number_in_file + || ra.block.compressed_file_offset + != rb.block.compressed_file_offset + || ra.block.uncompressed_file_offset + != rb.block.uncompressed_file_offset + || ra.block.number_in_stream + != rb.block.number_in_stream + || ra.block.compressed_stream_offset + != rb.block.compressed_stream_offset + || ra.block.uncompressed_stream_offset + != rb.block.uncompressed_stream_offset + || ra.block.uncompressed_size + != rb.block.uncompressed_size + || ra.block.unpadded_size + != rb.block.unpadded_size + || ra.block.total_size + != rb.block.total_size) + return false; + } +} + + +static void +test_equal(void) +{ + lzma_index *a = create_empty(); + lzma_index *b = create_small(); + lzma_index *c = create_big(); + expect(a && b && c); + + expect(is_equal(a, a)); + expect(is_equal(b, b)); + expect(is_equal(c, c)); + + expect(!is_equal(a, b)); + expect(!is_equal(a, c)); + expect(!is_equal(b, c)); + + lzma_index_end(a, NULL); + lzma_index_end(b, NULL); + lzma_index_end(c, NULL); +} + + +static void +test_overflow(void) +{ + // Integer overflow tests + lzma_index *i = create_empty(); + + expect(lzma_index_append(i, NULL, LZMA_VLI_MAX - 5, 1234) + == LZMA_DATA_ERROR); + + // TODO + + lzma_index_end(i, NULL); +} + + +static void +test_copy(const lzma_index *i) +{ + lzma_index *d = lzma_index_dup(i, NULL); + expect(d != NULL); + expect(is_equal(i, d)); + lzma_index_end(d, NULL); +} + + +static void +test_read(lzma_index *i) +{ + lzma_index_iter r; + lzma_index_iter_init(&r, i); + + // Try twice so we see that rewinding works. + for (size_t j = 0; j < 2; ++j) { + lzma_vli total_size = 0; + lzma_vli uncompressed_size = 0; + lzma_vli stream_offset = LZMA_STREAM_HEADER_SIZE; + lzma_vli uncompressed_offset = 0; + uint32_t count = 0; + + while (!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK)) { + ++count; + + total_size += r.block.total_size; + uncompressed_size += r.block.uncompressed_size; + + expect(r.block.compressed_file_offset + == stream_offset); + expect(r.block.uncompressed_file_offset + == uncompressed_offset); + + stream_offset += r.block.total_size; + uncompressed_offset += r.block.uncompressed_size; + } + + expect(lzma_index_total_size(i) == total_size); + expect(lzma_index_uncompressed_size(i) == uncompressed_size); + expect(lzma_index_block_count(i) == count); + + lzma_index_iter_rewind(&r); + } +} + + +static void +test_code(lzma_index *i) +{ +#if defined(HAVE_ENCODERS) && defined(HAVE_DECODERS) + const size_t alloc_size = 128 * 1024; + uint8_t *buf = malloc(alloc_size); + expect(buf != NULL); + + // Encode + lzma_stream strm = LZMA_STREAM_INIT; + expect(lzma_index_encoder(&strm, i) == LZMA_OK); + const lzma_vli index_size = lzma_index_size(i); + succeed(coder_loop(&strm, NULL, 0, buf, index_size, + LZMA_STREAM_END, LZMA_RUN)); + + // Decode + lzma_index *d; + expect(lzma_index_decoder(&strm, &d, MEMLIMIT) == LZMA_OK); + expect(d == NULL); + succeed(decoder_loop(&strm, buf, index_size)); + + expect(is_equal(i, d)); + + lzma_index_end(d, NULL); + lzma_end(&strm); + + // Decode with hashing + lzma_index_hash *h = lzma_index_hash_init(NULL, NULL); + expect(h != NULL); + lzma_index_iter r; + lzma_index_iter_init(&r, i); + while (!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK)) + expect(lzma_index_hash_append(h, r.block.unpadded_size, + r.block.uncompressed_size) == LZMA_OK); + size_t pos = 0; + while (pos < index_size - 1) + expect(lzma_index_hash_decode(h, buf, &pos, pos + 1) + == LZMA_OK); + expect(lzma_index_hash_decode(h, buf, &pos, pos + 1) + == LZMA_STREAM_END); + + lzma_index_hash_end(h, NULL); + + // Encode buffer + size_t buf_pos = 1; + expect(lzma_index_buffer_encode(i, buf, &buf_pos, index_size) + == LZMA_BUF_ERROR); + expect(buf_pos == 1); + + succeed(lzma_index_buffer_encode(i, buf, &buf_pos, index_size + 1)); + expect(buf_pos == index_size + 1); + + // Decode buffer + buf_pos = 1; + uint64_t memlimit = MEMLIMIT; + expect(lzma_index_buffer_decode(&d, &memlimit, NULL, buf, &buf_pos, + index_size) == LZMA_DATA_ERROR); + expect(buf_pos == 1); + expect(d == NULL); + + succeed(lzma_index_buffer_decode(&d, &memlimit, NULL, buf, &buf_pos, + index_size + 1)); + expect(buf_pos == index_size + 1); + expect(is_equal(i, d)); + + lzma_index_end(d, NULL); + + free(buf); +#else + (void)i; +#endif +} + + +static void +test_many(lzma_index *i) +{ + test_copy(i); + test_read(i); + test_code(i); +} + + +static void +test_cat(void) +{ + lzma_index *a, *b, *c, *d, *e, *f; + lzma_index_iter r; + + // Empty Indexes + a = create_empty(); + b = create_empty(); + expect(lzma_index_cat(a, b, NULL) == LZMA_OK); + expect(lzma_index_block_count(a) == 0); + expect(lzma_index_stream_size(a) == 2 * LZMA_STREAM_HEADER_SIZE + 8); + expect(lzma_index_file_size(a) + == 2 * (2 * LZMA_STREAM_HEADER_SIZE + 8)); + lzma_index_iter_init(&r, a); + expect(lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK)); + + b = create_empty(); + expect(lzma_index_cat(a, b, NULL) == LZMA_OK); + expect(lzma_index_block_count(a) == 0); + expect(lzma_index_stream_size(a) == 2 * LZMA_STREAM_HEADER_SIZE + 8); + expect(lzma_index_file_size(a) + == 3 * (2 * LZMA_STREAM_HEADER_SIZE + 8)); + + b = create_empty(); + c = create_empty(); + expect(lzma_index_stream_padding(b, 4) == LZMA_OK); + expect(lzma_index_cat(b, c, NULL) == LZMA_OK); + expect(lzma_index_block_count(b) == 0); + expect(lzma_index_stream_size(b) == 2 * LZMA_STREAM_HEADER_SIZE + 8); + expect(lzma_index_file_size(b) + == 2 * (2 * LZMA_STREAM_HEADER_SIZE + 8) + 4); + + expect(lzma_index_stream_padding(a, 8) == LZMA_OK); + expect(lzma_index_cat(a, b, NULL) == LZMA_OK); + expect(lzma_index_block_count(a) == 0); + expect(lzma_index_stream_size(a) == 2 * LZMA_STREAM_HEADER_SIZE + 8); + expect(lzma_index_file_size(a) + == 5 * (2 * LZMA_STREAM_HEADER_SIZE + 8) + 4 + 8); + + expect(lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK)); + lzma_index_iter_rewind(&r); + expect(lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK)); + lzma_index_end(a, NULL); + + // Small Indexes + a = create_small(); + lzma_vli stream_size = lzma_index_stream_size(a); + lzma_index_iter_init(&r, a); + for (int i = SMALL_COUNT; i >= 0; --i) + expect(!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK) + ^ (i == 0)); + + b = create_small(); + expect(lzma_index_stream_padding(a, 4) == LZMA_OK); + expect(lzma_index_cat(a, b, NULL) == LZMA_OK); + expect(lzma_index_file_size(a) == stream_size * 2 + 4); + expect(lzma_index_stream_size(a) > stream_size); + expect(lzma_index_stream_size(a) < stream_size * 2); + for (int i = SMALL_COUNT; i >= 0; --i) + expect(!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK) + ^ (i == 0)); + + lzma_index_iter_rewind(&r); + for (int i = SMALL_COUNT * 2; i >= 0; --i) + expect(!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK) + ^ (i == 0)); + + b = create_small(); + c = create_small(); + expect(lzma_index_stream_padding(b, 8) == LZMA_OK); + expect(lzma_index_cat(b, c, NULL) == LZMA_OK); + expect(lzma_index_stream_padding(a, 12) == LZMA_OK); + expect(lzma_index_cat(a, b, NULL) == LZMA_OK); + expect(lzma_index_file_size(a) == stream_size * 4 + 4 + 8 + 12); + + expect(lzma_index_block_count(a) == SMALL_COUNT * 4); + for (int i = SMALL_COUNT * 2; i >= 0; --i) + expect(!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK) + ^ (i == 0)); + + lzma_index_iter_rewind(&r); + for (int i = SMALL_COUNT * 4; i >= 0; --i) + expect(!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK) + ^ (i == 0)); + + lzma_index_end(a, NULL); + + // Mix of empty and small + a = create_empty(); + b = create_small(); + expect(lzma_index_stream_padding(a, 4) == LZMA_OK); + expect(lzma_index_cat(a, b, NULL) == LZMA_OK); + lzma_index_iter_init(&r, a); + for (int i = SMALL_COUNT; i >= 0; --i) + expect(!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK) + ^ (i == 0)); + + lzma_index_end(a, NULL); + + // Big Indexes + a = create_big(); + stream_size = lzma_index_stream_size(a); + b = create_big(); + expect(lzma_index_stream_padding(a, 4) == LZMA_OK); + expect(lzma_index_cat(a, b, NULL) == LZMA_OK); + expect(lzma_index_file_size(a) == stream_size * 2 + 4); + expect(lzma_index_stream_size(a) > stream_size); + expect(lzma_index_stream_size(a) < stream_size * 2); + + b = create_big(); + c = create_big(); + expect(lzma_index_stream_padding(b, 8) == LZMA_OK); + expect(lzma_index_cat(b, c, NULL) == LZMA_OK); + expect(lzma_index_stream_padding(a, 12) == LZMA_OK); + expect(lzma_index_cat(a, b, NULL) == LZMA_OK); + expect(lzma_index_file_size(a) == stream_size * 4 + 4 + 8 + 12); + + lzma_index_iter_init(&r, a); + for (int i = BIG_COUNT * 4; i >= 0; --i) + expect(!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK) + ^ (i == 0)); + + lzma_index_end(a, NULL); + + // Test for the bug fix 3d5a99ca373a4e86faf671226ca6487febb9eeac. + // lzma_index_checks would previously only return the checks + // for the last stream that was concatenated to the index. + d = create_small(); + e = create_small(); + f = create_small(); + + lzma_stream_flags crc32_flags = { + .backward_size = LZMA_BACKWARD_SIZE_MIN, + .check = LZMA_CHECK_CRC32 + }; + expect(lzma_index_stream_flags(d, &crc32_flags) == LZMA_OK); + + lzma_stream_flags crc64_flags = { + .backward_size = LZMA_BACKWARD_SIZE_MIN, + .check = LZMA_CHECK_CRC64 + }; + expect(lzma_index_stream_flags(e, &crc64_flags) == LZMA_OK); + + lzma_stream_flags sha256_flags = { + .backward_size = LZMA_BACKWARD_SIZE_MIN, + .check = LZMA_CHECK_SHA256 + }; + expect(lzma_index_stream_flags(f, &sha256_flags) == LZMA_OK); + + expect(lzma_index_checks(d) == (1U << LZMA_CHECK_CRC32)); + expect(lzma_index_checks(e) == (1U << LZMA_CHECK_CRC64)); + expect(lzma_index_checks(f) == (1U << LZMA_CHECK_SHA256)); + + expect(lzma_index_cat(d, e, NULL) == LZMA_OK); + expect(lzma_index_checks(d) == ((1U << LZMA_CHECK_CRC32) | + (1U << LZMA_CHECK_CRC64))); + + expect(lzma_index_cat(d, f, NULL) == LZMA_OK); + expect(lzma_index_checks(d) == ((1U << LZMA_CHECK_CRC32) | + (1U << LZMA_CHECK_CRC64) | + (1U << LZMA_CHECK_SHA256))); + + lzma_index_end(d, NULL); + +} + + +static void +test_locate(void) +{ + lzma_index *i = lzma_index_init(NULL); + expect(i != NULL); + lzma_index_iter r; + lzma_index_iter_init(&r, i); + + // Cannot locate anything from an empty Index. + expect(lzma_index_iter_locate(&r, 0)); + expect(lzma_index_iter_locate(&r, 555)); + + // One empty Record: nothing is found since there's no uncompressed + // data. + expect(lzma_index_append(i, NULL, 16, 0) == LZMA_OK); + expect(lzma_index_iter_locate(&r, 0)); + + // Non-empty Record and we can find something. + expect(lzma_index_append(i, NULL, 32, 5) == LZMA_OK); + expect(!lzma_index_iter_locate(&r, 0)); + expect(r.block.total_size == 32); + expect(r.block.uncompressed_size == 5); + expect(r.block.compressed_file_offset + == LZMA_STREAM_HEADER_SIZE + 16); + expect(r.block.uncompressed_file_offset == 0); + + // Still cannot find anything past the end. + expect(lzma_index_iter_locate(&r, 5)); + + // Add the third Record. + expect(lzma_index_append(i, NULL, 40, 11) == LZMA_OK); + + expect(!lzma_index_iter_locate(&r, 0)); + expect(r.block.total_size == 32); + expect(r.block.uncompressed_size == 5); + expect(r.block.compressed_file_offset + == LZMA_STREAM_HEADER_SIZE + 16); + expect(r.block.uncompressed_file_offset == 0); + + expect(!lzma_index_iter_next(&r, LZMA_INDEX_ITER_BLOCK)); + expect(r.block.total_size == 40); + expect(r.block.uncompressed_size == 11); + expect(r.block.compressed_file_offset + == LZMA_STREAM_HEADER_SIZE + 16 + 32); + expect(r.block.uncompressed_file_offset == 5); + + expect(!lzma_index_iter_locate(&r, 2)); + expect(r.block.total_size == 32); + expect(r.block.uncompressed_size == 5); + expect(r.block.compressed_file_offset + == LZMA_STREAM_HEADER_SIZE + 16); + expect(r.block.uncompressed_file_offset == 0); + + expect(!lzma_index_iter_locate(&r, 5)); + expect(r.block.total_size == 40); + expect(r.block.uncompressed_size == 11); + expect(r.block.compressed_file_offset + == LZMA_STREAM_HEADER_SIZE + 16 + 32); + expect(r.block.uncompressed_file_offset == 5); + + expect(!lzma_index_iter_locate(&r, 5 + 11 - 1)); + expect(r.block.total_size == 40); + expect(r.block.uncompressed_size == 11); + expect(r.block.compressed_file_offset + == LZMA_STREAM_HEADER_SIZE + 16 + 32); + expect(r.block.uncompressed_file_offset == 5); + + expect(lzma_index_iter_locate(&r, 5 + 11)); + expect(lzma_index_iter_locate(&r, 5 + 15)); + + // Large Index + lzma_index_end(i, NULL); + i = lzma_index_init(NULL); + expect(i != NULL); + lzma_index_iter_init(&r, i); + + for (size_t n = 4; n <= 4 * 5555; n += 4) + expect(lzma_index_append(i, NULL, n + 8, n) == LZMA_OK); + + expect(lzma_index_block_count(i) == 5555); + + // First Record + expect(!lzma_index_iter_locate(&r, 0)); + expect(r.block.total_size == 4 + 8); + expect(r.block.uncompressed_size == 4); + expect(r.block.compressed_file_offset == LZMA_STREAM_HEADER_SIZE); + expect(r.block.uncompressed_file_offset == 0); + + expect(!lzma_index_iter_locate(&r, 3)); + expect(r.block.total_size == 4 + 8); + expect(r.block.uncompressed_size == 4); + expect(r.block.compressed_file_offset == LZMA_STREAM_HEADER_SIZE); + expect(r.block.uncompressed_file_offset == 0); + + // Second Record + expect(!lzma_index_iter_locate(&r, 4)); + expect(r.block.total_size == 2 * 4 + 8); + expect(r.block.uncompressed_size == 2 * 4); + expect(r.block.compressed_file_offset + == LZMA_STREAM_HEADER_SIZE + 4 + 8); + expect(r.block.uncompressed_file_offset == 4); + + // Last Record + expect(!lzma_index_iter_locate( + &r, lzma_index_uncompressed_size(i) - 1)); + expect(r.block.total_size == 4 * 5555 + 8); + expect(r.block.uncompressed_size == 4 * 5555); + expect(r.block.compressed_file_offset == lzma_index_total_size(i) + + LZMA_STREAM_HEADER_SIZE - 4 * 5555 - 8); + expect(r.block.uncompressed_file_offset + == lzma_index_uncompressed_size(i) - 4 * 5555); + + // Allocation chunk boundaries. See INDEX_GROUP_SIZE in + // liblzma/common/index.c. + const size_t group_multiple = 256 * 4; + const size_t radius = 8; + const size_t start = group_multiple - radius; + lzma_vli ubase = 0; + lzma_vli tbase = 0; + size_t n; + for (n = 1; n < start; ++n) { + ubase += n * 4; + tbase += n * 4 + 8; + } + + while (n < start + 2 * radius) { + expect(!lzma_index_iter_locate(&r, ubase + n * 4)); + + expect(r.block.compressed_file_offset == tbase + n * 4 + 8 + + LZMA_STREAM_HEADER_SIZE); + expect(r.block.uncompressed_file_offset == ubase + n * 4); + + tbase += n * 4 + 8; + ubase += n * 4; + ++n; + + expect(r.block.total_size == n * 4 + 8); + expect(r.block.uncompressed_size == n * 4); + } + + // Do it also backwards. + while (n > start) { + expect(!lzma_index_iter_locate(&r, ubase + (n - 1) * 4)); + + expect(r.block.total_size == n * 4 + 8); + expect(r.block.uncompressed_size == n * 4); + + --n; + tbase -= n * 4 + 8; + ubase -= n * 4; + + expect(r.block.compressed_file_offset == tbase + n * 4 + 8 + + LZMA_STREAM_HEADER_SIZE); + expect(r.block.uncompressed_file_offset == ubase + n * 4); + } + + // Test locating in concatenated Index. + lzma_index_end(i, NULL); + i = lzma_index_init(NULL); + expect(i != NULL); + lzma_index_iter_init(&r, i); + for (n = 0; n < group_multiple; ++n) + expect(lzma_index_append(i, NULL, 8, 0) == LZMA_OK); + expect(lzma_index_append(i, NULL, 16, 1) == LZMA_OK); + expect(!lzma_index_iter_locate(&r, 0)); + expect(r.block.total_size == 16); + expect(r.block.uncompressed_size == 1); + expect(r.block.compressed_file_offset + == LZMA_STREAM_HEADER_SIZE + group_multiple * 8); + expect(r.block.uncompressed_file_offset == 0); + + lzma_index_end(i, NULL); +} + + +static void +test_corrupt(void) +{ +#if defined(HAVE_ENCODERS) && defined(HAVE_DECODERS) + const size_t alloc_size = 128 * 1024; + uint8_t *buf = malloc(alloc_size); + expect(buf != NULL); + lzma_stream strm = LZMA_STREAM_INIT; + + lzma_index *i = create_empty(); + expect(lzma_index_append(i, NULL, 0, 1) == LZMA_PROG_ERROR); + lzma_index_end(i, NULL); + + // Create a valid Index and corrupt it in different ways. + i = create_small(); + expect(lzma_index_encoder(&strm, i) == LZMA_OK); + succeed(coder_loop(&strm, NULL, 0, buf, 20, + LZMA_STREAM_END, LZMA_RUN)); + lzma_index_end(i, NULL); + + // Wrong Index Indicator + buf[0] ^= 1; + expect(lzma_index_decoder(&strm, &i, MEMLIMIT) == LZMA_OK); + succeed(decoder_loop_ret(&strm, buf, 1, LZMA_DATA_ERROR)); + buf[0] ^= 1; + + // Wrong Number of Records and thus CRC32 fails. + --buf[1]; + expect(lzma_index_decoder(&strm, &i, MEMLIMIT) == LZMA_OK); + succeed(decoder_loop_ret(&strm, buf, 10, LZMA_DATA_ERROR)); + ++buf[1]; + + // Padding not NULs + buf[15] ^= 1; + expect(lzma_index_decoder(&strm, &i, MEMLIMIT) == LZMA_OK); + succeed(decoder_loop_ret(&strm, buf, 16, LZMA_DATA_ERROR)); + + lzma_end(&strm); + free(buf); +#endif +} + + +// Allocator that succeeds for the first two allocation but fails the rest. +static void * +my_alloc(void *opaque, size_t a, size_t b) +{ + (void)opaque; + + static unsigned count = 0; + if (++count > 2) + return NULL; + + return malloc(a * b); +} + +static const lzma_allocator my_allocator = { &my_alloc, NULL, NULL }; + + +int +main(void) +{ + test_equal(); + + test_overflow(); + + lzma_index *i = create_empty(); + test_many(i); + lzma_index_end(i, NULL); + + i = create_small(); + test_many(i); + lzma_index_end(i, NULL); + + i = create_big(); + test_many(i); + lzma_index_end(i, NULL); + + test_cat(); + + test_locate(); + + test_corrupt(); + + // Test for the bug fix 21515d79d778b8730a434f151b07202d52a04611: + // liblzma: Fix lzma_index_dup() for empty Streams. + i = create_empty(); + expect(lzma_index_stream_padding(i, 4) == LZMA_OK); + test_copy(i); + lzma_index_end(i, NULL); + + // Test for the bug fix 3bf857edfef51374f6f3fffae3d817f57d3264a0: + // liblzma: Fix a memory leak in error path of lzma_index_dup(). + // Use Valgrind to see that there are no leaks. + i = create_small(); + expect(lzma_index_dup(i, &my_allocator) == NULL); + lzma_index_end(i, NULL); + + return 0; +} |