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a38f7fec ZJS |
1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
2 | ||
3 | #include "fuzz.h" | |
4 | ||
5 | #include <sys/mman.h> | |
6 | ||
7 | #include "sd-journal.h" | |
8 | ||
9 | #include "fd-util.h" | |
10 | #include "fileio.h" | |
11 | #include "fs-util.h" | |
12 | #include "journal-remote.h" | |
13 | #include "logs-show.h" | |
14 | #include "memfd-util.h" | |
15 | #include "strv.h" | |
16 | ||
17 | int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { | |
18 | RemoteServer s = {}; | |
19 | char name[] = "/tmp/fuzz-journal-remote.XXXXXX.journal"; | |
20 | void *mem; | |
21 | int fdin; /* will be closed by journal_remote handler after EOF */ | |
22 | _cleanup_close_ int fdout = -1; | |
23 | sd_journal *j; | |
24 | int r; | |
25 | ||
26 | if (size <= 2) | |
27 | return 0; | |
28 | ||
29 | assert_se((fdin = memfd_new_and_map("fuzz-journal-remote", size, &mem)) >= 0); | |
30 | memcpy(mem, data, size); | |
31 | assert_se(munmap(mem, size) == 0); | |
32 | ||
33 | fdout = mkostemps(name, STRLEN(".journal"), O_CLOEXEC); | |
34 | assert_se(fdout >= 0); | |
35 | ||
36 | /* In */ | |
37 | ||
38 | assert_se(journal_remote_server_init(&s, name, JOURNAL_WRITE_SPLIT_NONE, false, false) >= 0); | |
39 | ||
40 | assert_se(journal_remote_add_source(&s, fdin, (char*) "fuzz-data", false) > 0); | |
41 | ||
42 | while (s.active) { | |
43 | r = journal_remote_handle_raw_source(NULL, fdin, 0, &s); | |
44 | assert_se(r >= 0); | |
45 | } | |
46 | ||
47 | journal_remote_server_destroy(&s); | |
48 | assert_se(close(fdin) < 0 && errno == EBADF); /* Check that the fd is closed already */ | |
49 | ||
50 | /* Out */ | |
51 | ||
52 | r = sd_journal_open_files(&j, (const char**) STRV_MAKE(name), 0); | |
53 | assert_se(r >= 0); | |
54 | ||
55 | r = show_journal(stdout, j, OUTPUT_VERBOSE, 0, 0, -1, 0, NULL); | |
56 | assert_se(r >= 0); | |
57 | ||
58 | sd_journal_close(j); | |
59 | unlink(name); | |
60 | ||
61 | return 0; | |
62 | } |