79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#include "fuzz.h"
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#include <sys/mman.h>
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#include "sd-journal.h"
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#include "env-util.h"
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#include "fd-util.h"
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#include "fileio.h"
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#include "fs-util.h"
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#include "journal-remote.h"
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#include "logs-show.h"
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#include "memfd-util.h"
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#include "strv.h"
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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_cleanup_fclose_ FILE *dev_null = NULL;
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RemoteServer s = {};
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char name[] = "/tmp/fuzz-journal-remote.XXXXXX.journal";
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void *mem;
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int fdin; /* will be closed by journal_remote handler after EOF */
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_cleanup_close_ int fdout = -1;
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sd_journal *j;
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OutputMode mode;
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int r;
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if (size <= 2)
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return 0;
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if (!getenv("SYSTEMD_LOG_LEVEL"))
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log_set_max_level(LOG_CRIT);
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assert_se((fdin = memfd_new_and_map("fuzz-journal-remote", size, &mem)) >= 0);
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memcpy(mem, data, size);
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assert_se(munmap(mem, size) == 0);
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fdout = mkostemps(name, STRLEN(".journal"), O_CLOEXEC);
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assert_se(fdout >= 0);
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/* In */
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assert_se(journal_remote_server_init(&s, name, JOURNAL_WRITE_SPLIT_NONE, false, false) >= 0);
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assert_se(journal_remote_add_source(&s, fdin, (char*) "fuzz-data", false) > 0);
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while (s.active) {
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r = journal_remote_handle_raw_source(NULL, fdin, 0, &s);
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assert_se(r >= 0);
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}
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journal_remote_server_destroy(&s);
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assert_se(close(fdin) < 0 && errno == EBADF); /* Check that the fd is closed already */
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/* Out */
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r = sd_journal_open_files(&j, (const char**) STRV_MAKE(name), 0);
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assert_se(r >= 0);
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if (getenv_bool("SYSTEMD_FUZZ_OUTPUT") <= 0)
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assert_se(dev_null = fopen("/dev/null", "we"));
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for (mode = 0; mode < _OUTPUT_MODE_MAX; mode++) {
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if (!dev_null)
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log_info("/* %s */", output_mode_to_string(mode));
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r = show_journal(dev_null ?: stdout, j, mode, 0, 0, -1, 0, NULL);
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assert_se(r >= 0);
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r = sd_journal_seek_head(j);
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assert_se(r >= 0);
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}
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sd_journal_close(j);
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unlink(name);
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return 0;
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}
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