mirror of
https://github.com/systemd/systemd
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97 lines
3.1 KiB
C
97 lines
3.1 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 "path-util.h"
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#include "rm-rf.h"
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#include "strv.h"
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#include "tmpfile-util.h"
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int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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_cleanup_close_ int fdin_close = -EBADF, fdout = -EBADF;
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_cleanup_(rm_rf_physical_and_freep) char *tmp = NULL;
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_cleanup_(unlink_and_freep) char *name = NULL;
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_cleanup_(sd_journal_closep) sd_journal *j = NULL;
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_cleanup_(journal_remote_server_destroy) RemoteServer s = {};
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void *mem;
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int fdin, r;
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if (outside_size_range(size, 3, 65536))
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return 0;
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if (!getenv("SYSTEMD_LOG_LEVEL"))
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log_set_max_level(LOG_ERR);
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assert_se(mkdtemp_malloc("/tmp/fuzz-journal-remote-XXXXXX", &tmp) >= 0);
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assert_se(name = path_join(tmp, "fuzz-journal-remote.XXXXXX.journal"));
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fdin = fdin_close = memfd_new_and_map("fuzz-journal-remote", size, &mem);
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if (fdin < 0)
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return log_error_errno(fdin, "memfd_new_and_map() failed: %m");
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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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if (fdout < 0)
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return log_error_errno(errno, "mkostemps() failed: %m");
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/* In */
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r = journal_remote_server_init(&s, name, JOURNAL_WRITE_SPLIT_NONE, 0);
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if (r < 0) {
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assert_se(IN_SET(r, -ENOMEM, -EMFILE, -ENFILE));
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return r;
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}
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r = journal_remote_add_source(&s, fdin, (char*) "fuzz-data", false);
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if (r < 0)
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return r;
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TAKE_FD(fdin_close);
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assert(r > 0);
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while (s.active)
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assert_se(journal_remote_handle_raw_source(NULL, fdin, 0, &s) >= 0);
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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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if (r < 0) {
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log_error_errno(r, "sd_journal_open_files([\"%s\"]) failed: %m", name);
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assert_se(IN_SET(r, -ENOMEM, -EMFILE, -ENFILE, -ENODATA));
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return r;
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}
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_cleanup_fclose_ FILE *dev_null = NULL;
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if (getenv_bool("SYSTEMD_FUZZ_OUTPUT") <= 0) {
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dev_null = fopen("/dev/null", "we");
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if (!dev_null)
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return log_error_errno(errno, "fopen(\"/dev/null\") failed: %m");
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}
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for (OutputMode 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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return 0;
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}
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