From bdc8e3b79e8fd4b59ef71a9f585fe8590b90f1c2 Mon Sep 17 00:00:00 2001 From: van Hauser Date: Wed, 24 Jun 2020 11:09:33 +0200 Subject: create .synced/NAMES.last to document last sync attempts --- src/afl-fuzz-run.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'src/afl-fuzz-run.c') diff --git a/src/afl-fuzz-run.c b/src/afl-fuzz-run.c index eb562c60..432d0195 100644 --- a/src/afl-fuzz-run.c +++ b/src/afl-fuzz-run.c @@ -466,6 +466,12 @@ void sync_fuzzers(afl_state_t *afl) { synced++; + /* document the attempt to sync to this instance */ + + sprintf(qd_synced_path, "%s/.synced/%s.last", afl->out_dir, sd_ent->d_name); + id_fd = open(qd_synced_path, O_RDWR | O_CREAT | O_TRUNC, 0600); + if (id_fd >= 0) close(id_fd); + /* Skip anything that doesn't have a queue/ subdirectory. */ sprintf(qd_path, "%s/%s/queue", afl->sync_dir, sd_ent->d_name); @@ -490,14 +496,13 @@ void sync_fuzzers(afl_state_t *afl) { if (id_fd < 0) { PFATAL("Unable to create '%s'", qd_synced_path); } - if (read(id_fd, &min_accept, sizeof(u32)) > 0) { + if (read(id_fd, &min_accept, sizeof(u32)) == sizeof(u32)) { + next_min_accept = min_accept; lseek(id_fd, 0, SEEK_SET); } - next_min_accept = min_accept; - /* Show stats */ snprintf(afl->stage_name_buf, STAGE_BUF_SIZE, "sync %u", ++sync_cnt); -- cgit 1.4.1