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added AFL_IGNORE_UNKNOWN_ENVS

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This commit is contained in:
vanhauser-thc
2021-02-13 22:43:56 +01:00
parent 6ce9230ed6
commit 9bd1e19d7f
8 changed files with 15 additions and 7 deletions
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1
src/afl-cc.c
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@ -1587,6 +1587,7 @@ int main(int argc, char **argv, char **envp) {
"libtokencap.so)\n"
" AFL_PATH: path to instrumenting pass and runtime "
"(afl-compiler-rt.*o)\n"
" AFL_IGNORE_UNKNOWN_ENVS: don't warn on unknown env vars\n"
" AFL_INST_RATIO: percentage of branches to instrument\n"
" AFL_QUIET: suppress verbose output\n"
" AFL_HARDEN: adds code hardening to catch memory bugs\n"

4
src/afl-common.c
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@ -523,7 +523,7 @@ void check_environment_vars(char **envp) {
if (be_quiet) { return; }
int index = 0, issue_detected = 0;
char *env, *val;
char *env, *val, *ignore = getenv("AFL_IGNORE_UNKNOWN_ENVS");
while ((env = envp[index++]) != NULL) {
if (strncmp(env, "ALF_", 4) == 0 || strncmp(env, "_ALF", 4) == 0 ||
@ -582,7 +582,7 @@ void check_environment_vars(char **envp) {
}
if (match == 0) {
if (match == 0 && !ignore) {
WARNF("Mistyped AFL environment variable: %s", env);
issue_detected = 1;

1
src/afl-fuzz.c
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@ -198,6 +198,7 @@ static void usage(u8 *argv0, int more_help) {
"AFL_FORKSRV_INIT_TMOUT: time spent waiting for forkserver during startup (in milliseconds)\n"
"AFL_HANG_TMOUT: override timeout value (in milliseconds)\n"
"AFL_I_DONT_CARE_ABOUT_MISSING_CRASHES: don't warn about core dump handlers\n"
"AFL_IGNORE_UNKNOWN_ENVS: don't warn on unknown env vars\n"
"AFL_IMPORT_FIRST: sync and import test cases from other fuzzer instances first\n"
"AFL_KILL_SIGNAL: Signal ID delivered to child processes on timeout, etc. (default: SIGKILL)\n"
"AFL_MAP_SIZE: the shared memory size for that target. must be >= the size\n"

5
src/afl-showmap.c
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@ -1168,8 +1168,9 @@ int main(int argc, char **argv_orig, char **envp) {
}
stdin_file = at_file ? strdup(at_file) : (char *)
alloc_printf("%s/.afl-showmap-temp-%u", use_dir, (u32)getpid());
stdin_file = at_file ? strdup(at_file)
: (char *)alloc_printf("%s/.afl-showmap-temp-%u",
use_dir, (u32)getpid());
unlink(stdin_file);
atexit(at_exit_handler);
fsrv->out_file = stdin_file;