+++ /dev/null
-/***
- This file is part of systemd
-
- Copyright 2014 Ronny Chevalier
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include "compress.h"
-#include "util.h"
-#include "macro.h"
-
-#ifdef HAVE_XZ
-# define XZ_OK 0
-#else
-# define XZ_OK -EPROTONOSUPPORT
-#endif
-
-#ifdef HAVE_LZ4
-# define LZ4_OK 0
-#else
-# define LZ4_OK -EPROTONOSUPPORT
-#endif
-
-typedef int (compress_blob_t)(const void *src, uint64_t src_size,
- void *dst, size_t *dst_size);
-typedef int (decompress_blob_t)(const void *src, uint64_t src_size,
- void **dst, size_t *dst_alloc_size,
- size_t* dst_size, size_t dst_max);
-typedef int (decompress_sw_t)(const void *src, uint64_t src_size,
- void **buffer, size_t *buffer_size,
- const void *prefix, size_t prefix_len,
- uint8_t extra);
-
-typedef int (compress_stream_t)(int fdf, int fdt, off_t max_bytes);
-typedef int (decompress_stream_t)(int fdf, int fdt, off_t max_size);
-
-static void test_compress_decompress(int compression,
- compress_blob_t compress,
- decompress_blob_t decompress,
- const char *data,
- size_t data_len,
- bool may_fail) {
- char compressed[512];
- size_t csize = 512;
- size_t usize = 0;
- _cleanup_free_ char *decompressed = NULL;
- int r;
-
- log_info("/* testing %s %s blob compression/decompression */",
- object_compressed_to_string(compression), data);
-
- r = compress(data, data_len, compressed, &csize);
- if (r == -ENOBUFS) {
- log_info_errno(r, "compression failed: %m");
- assert_se(may_fail);
- } else {
- assert_se(r == 0);
- r = decompress(compressed, csize,
- (void **) &decompressed, &usize, &csize, 0);
- assert_se(r == 0);
- assert_se(decompressed);
- assert_se(memcmp(decompressed, data, data_len) == 0);
- }
-
- r = decompress("garbage", 7,
- (void **) &decompressed, &usize, &csize, 0);
- assert_se(r < 0);
-
- /* make sure to have the minimal lz4 compressed size */
- r = decompress("00000000\1g", 9,
- (void **) &decompressed, &usize, &csize, 0);
- assert_se(r < 0);
-
- r = decompress("\100000000g", 9,
- (void **) &decompressed, &usize, &csize, 0);
- assert_se(r < 0);
-
- memzero(decompressed, usize);
-}
-
-static void test_decompress_startswith(int compression,
- compress_blob_t compress,
- decompress_sw_t decompress_sw,
- const char *data,
- size_t data_len,
- bool may_fail) {
-
- char compressed[512];
- size_t csize = 512;
- size_t usize = 0;
- _cleanup_free_ char *decompressed = NULL;
- int r;
-
- log_info("/* testing decompress_startswith with %s on %s text*/",
- object_compressed_to_string(compression), data);
-
- r = compress(data, data_len, compressed, &csize);
- if (r == -ENOBUFS) {
- log_info_errno(r, "compression failed: %m");
- assert_se(may_fail);
- return;
- }
- assert_se(r == 0);
-
- assert_se(decompress_sw(compressed,
- csize,
- (void **) &decompressed,
- &usize,
- data, strlen(data), '\0') > 0);
- assert_se(decompress_sw(compressed,
- csize,
- (void **) &decompressed,
- &usize,
- data, strlen(data), 'w') == 0);
- assert_se(decompress_sw(compressed,
- csize,
- (void **) &decompressed,
- &usize,
- "barbarbar", 9, ' ') == 0);
- assert_se(decompress_sw(compressed,
- csize,
- (void **) &decompressed,
- &usize,
- data, strlen(data), '\0') > 0);
-}
-
-static void test_compress_stream(int compression,
- const char* cat,
- compress_stream_t compress,
- decompress_stream_t decompress,
- const char *srcfile) {
-
- _cleanup_close_ int src = -1, dst = -1, dst2 = -1;
- char pattern[] = "/tmp/systemd-test.xz.XXXXXX",
- pattern2[] = "/tmp/systemd-test.xz.XXXXXX";
- int r;
- _cleanup_free_ char *cmd = NULL, *cmd2;
- struct stat st = {};
-
- log_debug("/* testing %s compression */",
- object_compressed_to_string(compression));
-
- log_debug("/* create source from %s */", srcfile);
-
- assert_se((src = open(srcfile, O_RDONLY|O_CLOEXEC)) >= 0);
-
- log_debug("/* test compression */");
-
- assert_se((dst = mkostemp_safe(pattern, O_RDWR|O_CLOEXEC)) >= 0);
-
- assert_se(compress(src, dst, -1) == 0);
-
- if (cat) {
- assert_se(asprintf(&cmd, "%s %s | diff %s -", cat, pattern, srcfile) > 0);
- assert_se(system(cmd) == 0);
- }
-
- log_debug("/* test decompression */");
-
- assert_se((dst2 = mkostemp_safe(pattern2, O_RDWR|O_CLOEXEC)) >= 0);
-
- assert_se(stat(srcfile, &st) == 0);
-
- assert_se(lseek(dst, 0, SEEK_SET) == 0);
- r = decompress(dst, dst2, st.st_size);
- assert_se(r == 0);
-
- assert_se(asprintf(&cmd2, "diff %s %s", srcfile, pattern2) > 0);
- assert_se(system(cmd2) == 0);
-
- log_debug("/* test faulty decompression */");
-
- assert_se(lseek(dst, 1, SEEK_SET) == 1);
- r = decompress(dst, dst2, st.st_size);
- assert_se(r == -EBADMSG);
-
- assert_se(lseek(dst, 0, SEEK_SET) == 0);
- assert_se(lseek(dst2, 0, SEEK_SET) == 0);
- r = decompress(dst, dst2, st.st_size - 1);
- assert_se(r == -EFBIG);
-
- assert_se(unlink(pattern) == 0);
- assert_se(unlink(pattern2) == 0);
-}
-
-int main(int argc, char *argv[]) {
- const char text[] =
- "text\0foofoofoofoo AAAA aaaaaaaaa ghost busters barbarbar FFF"
- "foofoofoofoo AAAA aaaaaaaaa ghost busters barbarbar FFF";
-
- char data[512] = "random\0";
-
- log_set_max_level(LOG_DEBUG);
-
- random_bytes(data + 7, sizeof(data) - 7);
-
-#ifdef HAVE_XZ
- test_compress_decompress(OBJECT_COMPRESSED_XZ, compress_blob_xz, decompress_blob_xz,
- text, sizeof(text), false);
- test_compress_decompress(OBJECT_COMPRESSED_XZ, compress_blob_xz, decompress_blob_xz,
- data, sizeof(data), true);
- test_decompress_startswith(OBJECT_COMPRESSED_XZ,
- compress_blob_xz, decompress_startswith_xz,
- text, sizeof(text), false);
- test_decompress_startswith(OBJECT_COMPRESSED_XZ,
- compress_blob_xz, decompress_startswith_xz,
- data, sizeof(data), true);
- test_compress_stream(OBJECT_COMPRESSED_XZ, "xzcat",
- compress_stream_xz, decompress_stream_xz, argv[0]);
-#else
- log_info("/* XZ test skipped */");
-#endif
-
-#ifdef HAVE_LZ4
- test_compress_decompress(OBJECT_COMPRESSED_LZ4, compress_blob_lz4, decompress_blob_lz4,
- text, sizeof(text), false);
- test_compress_decompress(OBJECT_COMPRESSED_LZ4, compress_blob_lz4, decompress_blob_lz4,
- data, sizeof(data), true);
- test_decompress_startswith(OBJECT_COMPRESSED_LZ4,
- compress_blob_lz4, decompress_startswith_lz4,
- text, sizeof(text), false);
- test_decompress_startswith(OBJECT_COMPRESSED_LZ4,
- compress_blob_lz4, decompress_startswith_lz4,
- data, sizeof(data), true);
-
- /* Produced stream is not compatible with lz4 binary, skip lz4cat check. */
- test_compress_stream(OBJECT_COMPRESSED_LZ4, NULL,
- compress_stream_lz4, decompress_stream_lz4, argv[0]);
-#else
- log_info("/* LZ4 test skipped */");
-#endif
-
- return 0;
-}
~ianmdlvl / elogind.git / blobdiff