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Diffstat (limited to 'docs/env_variables.md')
| -rw-r--r-- | docs/env_variables.md | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/docs/env_variables.md b/docs/env_variables.md index d9a774aa..b4b866ab 100644 --- a/docs/env_variables.md +++ b/docs/env_variables.md @@ -289,6 +289,10 @@ checks or alter some of the more exotic semantics of the tool: normally indicated by the cycle counter in the UI turning green. May be convenient for some types of automated jobs. + - `AFL_EXIT_ON_TIME` Causes afl-fuzz to terminate if no new paths were + found within a specified period of time (in seconds). May be convenient + for some types of automated jobs. + - `AFL_EXIT_ON_SEED_ISSUES` will restore the vanilla afl-fuzz behaviour which does not allow crashes or timeout seeds in the initial -i corpus. @@ -313,14 +317,12 @@ checks or alter some of the more exotic semantics of the tool: on Linux systems. This slows things down, but lets you run more instances of afl-fuzz than would be prudent (if you really want to). + - Setting `AFL_TRY_AFFINITY` tries to attempt binding to a specific CPU core + on Linux systems, but will not terminate if that fails. + - Setting `AFL_NO_AUTODICT` will not load an LTO generated auto dictionary that is compiled into the target. - - `AFL_SKIP_CRASHES` causes AFL++ to tolerate crashing files in the input - queue. This can help with rare situations where a program crashes only - intermittently, but it's not really recommended under normal operating - conditions. - - Setting `AFL_HANG_TMOUT` allows you to specify a different timeout for deciding if a particular test case is a "hang". The default is 1 second or the value of the `-t` parameter, whichever is larger. Dialing the value @@ -356,6 +358,7 @@ checks or alter some of the more exotic semantics of the tool: and shell scripts; and `AFL_DUMB_FORKSRV` in conjunction with the `-n` setting to instruct afl-fuzz to still follow the fork server protocol without expecting any instrumentation data in return. + Note that this also turns off auto map size detection. - When running in the `-M` or `-S` mode, setting `AFL_IMPORT_FIRST` causes the fuzzer to import test cases from other instances before doing anything @@ -568,6 +571,9 @@ The corpus minimization script offers very little customization: a modest security risk on multi-user systems with rogue users, but should be safe on dedicated fuzzing boxes. + - `AFL_PRINT_FILENAMES` prints each filename to stdout, as it gets processed. + This can help when embedding `afl-cmin` or `afl-showmap` in other scripts scripting. + ## 7) Settings for afl-tmin Virtually nothing to play with. Well, in QEMU mode (`-Q`), `AFL_PATH` will be |