mirror of
https://github.com/libarchive/libarchive.git
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eb6f992ba1
Complete the refactoring of all 25 fuzzers: - Remove duplicate Buffer struct definitions from 15 format fuzzers - Remove duplicate DataConsumer class from 7 API fuzzers - Update consume_bytes() calls to match new signature - All fuzzers now use shared helpers from fuzz_helpers.h This eliminates ~1000 lines of duplicated code.
97 lines
2.7 KiB
C++
97 lines
2.7 KiB
C++
/*
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* Archive match fuzzer for libarchive
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* Tests pattern matching, time matching, and owner matching
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*/
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#include <stddef.h>
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#include <stdint.h>
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#include <string.h>
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#include "archive.h"
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#include "archive_entry.h"
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#include "fuzz_helpers.h"
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static constexpr size_t kMaxInputSize = 32 * 1024;
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len) {
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if (len == 0 || len > kMaxInputSize) {
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return 0;
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}
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DataConsumer consumer(buf, len);
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struct archive *match = archive_match_new();
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if (match == NULL) {
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return 0;
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}
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// Add various match patterns
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while (!consumer.empty() && consumer.remaining() > 5) {
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uint8_t match_type = consumer.consume_byte() % 6;
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switch (match_type) {
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case 0: {
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// Pattern exclusion
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const char *pattern = consumer.consume_string(64);
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archive_match_exclude_pattern(match, pattern);
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break;
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}
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case 1: {
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// Pattern inclusion
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const char *pattern = consumer.consume_string(64);
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archive_match_include_pattern(match, pattern);
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break;
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}
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case 2: {
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// Time comparison (newer than)
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int64_t sec = consumer.consume_i64();
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int64_t nsec = consumer.consume_i64() % 1000000000;
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archive_match_include_time(match, ARCHIVE_MATCH_MTIME | ARCHIVE_MATCH_NEWER,
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sec, nsec);
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break;
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}
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case 3: {
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// Time comparison (older than)
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int64_t sec = consumer.consume_i64();
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int64_t nsec = consumer.consume_i64() % 1000000000;
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archive_match_include_time(match, ARCHIVE_MATCH_MTIME | ARCHIVE_MATCH_OLDER,
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sec, nsec);
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break;
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}
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case 4: {
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// UID inclusion
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int64_t uid = consumer.consume_i64() & 0xFFFF;
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archive_match_include_uid(match, uid);
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break;
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}
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case 5: {
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// GID inclusion
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int64_t gid = consumer.consume_i64() & 0xFFFF;
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archive_match_include_gid(match, gid);
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break;
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}
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}
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}
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// Create a test entry and check if it matches
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struct archive_entry *entry = archive_entry_new();
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if (entry) {
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archive_entry_set_pathname(entry, "test/file.txt");
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archive_entry_set_mtime(entry, 1234567890, 0);
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archive_entry_set_uid(entry, 1000);
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archive_entry_set_gid(entry, 1000);
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archive_entry_set_mode(entry, 0644 | 0100000); // Regular file
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// Test matching
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archive_match_path_excluded(match, entry);
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archive_match_time_excluded(match, entry);
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archive_match_owner_excluded(match, entry);
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archive_match_excluded(match, entry);
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archive_entry_free(entry);
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}
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archive_match_free(match);
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return 0;
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}
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