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| author | Nils Bars <nils.bars@rub.de> | 2022-10-24 17:52:04 +0200 |
|---|---|---|
| committer | Nils Bars <nils.bars@rub.de> | 2022-10-24 17:54:03 +0200 |
| commit | 102b749c0734165f1cb121397e4a4c307666b8eb (patch) | |
| tree | d2a090fa114ede2091e752d3116ba8742f3dbcbb /docs/env_variables.md | |
| parent | 7512316b46a25180729ff8c568a6061a0ab19fea (diff) | |
| download | afl++-102b749c0734165f1cb121397e4a4c307666b8eb.tar.gz | |
AFL_FORK_SERVER_KILL_SIGNAL backwards compatiblity
If `AFL_KILL_SIGNAL` is set, `AFL_FORK_SERVER_KILL_SIGNAL` is set to the same value.
Diffstat (limited to 'docs/env_variables.md')
| -rw-r--r-- | docs/env_variables.md | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/env_variables.md b/docs/env_variables.md index 6fd08910..d1c13e15 100644 --- a/docs/env_variables.md +++ b/docs/env_variables.md @@ -418,6 +418,10 @@ checks or alter some of the more exotic semantics of the tool: fork server when AFL++ is terminated. Unless you implement your fork server, you likely do not have to set it. By default, `SIGTERM` (`AFL_FORK_SERVER_KILL_SIGNAL=15`) will be delivered to the fork server. + If only `AFL_KILL_SIGNAL` is provided, `AFL_FORK_SERVER_KILL_SIGNAL` will + be set to same value as `AFL_KILL_SIGNAL` to provide backward compatibility. + If `AFL_FORK_SERVER_KILL_SIGNAL` is also set, it takes precedence. + NOTE: Uncatchable signals, such as `SIGKILL`, cause child processes of the fork server to be orphaned and leaves them in a zombie state. |