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change -y to -g/-G and add env var alternatives

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This commit is contained in:
vanhauser-thc
2022-02-05 10:36:37 +01:00
parent d5b9cd4b73
commit fa3c0d8a37
4 changed files with 34 additions and 29 deletions
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43
src/afl-fuzz.c
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@ -155,9 +155,9 @@ static void usage(u8 *argv0, int more_help) {
"\n"
"Mutator settings:\n"
" -y [min-]max - set minimum and maximum length of generated fuzzing "
"input.\n"
" default: 1-%lu\n"
" -g minlength - set min length of generated fuzz input (default: 1)\n"
" -G minlength - set max length of generated fuzz input (default: "
"%lu)\n"
" -D - enable deterministic fuzzing (once per queue entry)\n"
" -L minutes - use MOpt(imize) mode and set the time limit for "
"entering the\n"
@ -256,6 +256,7 @@ static void usage(u8 *argv0, int more_help) {
"AFL_IGNORE_UNKNOWN_ENVS: don't warn on unknown env vars\n"
"AFL_IGNORE_PROBLEMS: do not abort fuzzing if an incorrect setup is detected during a run\n"
"AFL_IMPORT_FIRST: sync and import test cases from other fuzzer instances first\n"
"AFL_INPUT_LEN_MIN/AFL_INPUT_LEN_MAX: like -g/-G set min/max fuzz length produced\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"
" the target was compiled for\n"
@ -530,37 +531,21 @@ int main(int argc, char **argv_orig, char **envp) {
afl->shmem_testcase_mode = 1; // we always try to perform shmem fuzzing
while ((opt = getopt(
argc, argv,
"+Ab:B:c:CdDe:E:hi:I:f:F:l:L:m:M:nNOo:p:RQs:S:t:T:UV:WXx:Yy:Z")) >
0) {
while (
(opt = getopt(
argc, argv,
"+Ab:B:c:CdDe:E:hi:I:f:F:g:G:l:L:m:M:nNOo:p:RQs:S:t:T:UV:WXx:YZ")) >
0) {
switch (opt) {
case 'y': {
u8 *sep;
if (!(sep = strchr(optarg, '-')) && !(sep = strchr(optarg, ':'))) {
afl->max_length = atoi(optarg);
} else {
afl->min_length = atoi(optarg);
afl->max_length = atoi(sep + 1);
}
if (afl->min_length < 1 || afl->max_length > MAX_FILE ||
afl->min_length > afl->max_length) {
FATAL("Illegal min/max length values: %s", optarg);
}
case 'g':
afl->min_length = atoi(optarg);
break;
}
case 'G':
afl->max_length = atoi(optarg);
break;
case 'Z':
afl->old_seed_selection = 1;