From 425908a00cdcaa4d49a513d283431b8b6eed0486 Mon Sep 17 00:00:00 2001 From: Marius Muench Date: Sun, 23 Aug 2020 10:39:34 +0200 Subject: Option for specifying forkserver initialization timeout via environment variable (#522) * Addition of AFL_FORKSRV_INIT_TMOUT env var This commit introduces a new environment variable which allows to specify the timespan AFL should wait for initial contact with the forkserver. This is useful for fuzz-targets requiring a rather long setup time before the actual fuzzing can be started (e.g., unicorn). * add .swp files to .gitignore * Inherit init_tmout in afl_fsrv_init_dup Without this patch, the forkserver would spawn with a timeout of 0 in cmplog mode, leading to an immediate crash. Additionally, this commit removes a spurious whitespace. * Initialize afl->fsrv.init_tmout in afl_fsrv_init Not all afl-components will need the new AFL_FORKSRV_INIT_TMOUT environment variable. Hence, it's initialized to the safe "default" value from before in afl_fsrv_init now. --- include/envs.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/envs.h') diff --git a/include/envs.h b/include/envs.h index 4d50d0ff..c7761e19 100644 --- a/include/envs.h +++ b/include/envs.h @@ -48,6 +48,7 @@ static char *afl_environment_variables[] = { "AFL_GCC_INSTRUMENT_FILE", "AFL_GCJ", "AFL_HANG_TMOUT", + "AFL_FORKSRV_INIT_TMOUT", "AFL_HARDEN", "AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES", "AFL_IMPORT_FIRST", -- cgit 1.4.1