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AFL_CRASH_EXITCODE env var added, u8->bool

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Dominik Maier
2020-12-03 14:43:06 +01:00
parent 0f803c63df
commit a2e2fae840
16 changed files with 152 additions and 37 deletions
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32
src/afl-tmin.c
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@ -51,6 +51,7 @@
#include <signal.h>
#include <dirent.h>
#include <fcntl.h>
#include <limits.h>
#include <sys/wait.h>
#include <sys/time.h>
@ -841,17 +842,17 @@ static void usage(u8 *argv0) {
"For additional tips, please consult %s/README.md.\n\n"
"Environment variables used:\n"
"TMPDIR: directory to use for temporary input files\n"
"ASAN_OPTIONS: custom settings for ASAN\n"
" (must contain abort_on_error=1 and symbolize=0)\n"
"MSAN_OPTIONS: custom settings for MSAN\n"
" (must contain exitcode="STRINGIFY(MSAN_ERROR)" and symbolize=0)\n"
"AFL_CRASH_EXITCODE: optional child exit code to be interpreted as crash\n"
"AFL_FORKSRV_INIT_TMOUT: time spent waiting for forkserver during startup (in milliseconds)\n"
"AFL_MAP_SIZE: the shared memory size for that target. must be >= the size\n"
" the target was compiled for\n"
"AFL_PRELOAD: LD_PRELOAD / DYLD_INSERT_LIBRARIES settings for target\n"
"AFL_TMIN_EXACT: require execution paths to match for crashing inputs\n"
"AFL_FORKSRV_INIT_TMOUT: time spent waiting for forkserver during startup (in milliseconds)\n"
"ASAN_OPTIONS: custom settings for ASAN\n"
" (must contain abort_on_error=1 and symbolize=0)\n"
"MSAN_OPTIONS: custom settings for MSAN\n"
" (must contain exitcode="STRINGIFY(MSAN_ERROR)" and symbolize=0)\n"
"TMPDIR: directory to use for temporary input files\n"
, argv0, EXEC_TIMEOUT, MEM_LIMIT, doc_path);
exit(1);
@ -1122,6 +1123,23 @@ int main(int argc, char **argv_orig, char **envp) {
}
if (getenv("AFL_CRASH_EXITCODE")) {
long exitcode = strtol(getenv("AFL_CRASH_EXITCODE"), NULL, 10);
if ((!exitcode && (errno == EINVAL || errno == ERANGE)) ||
exitcode < -127 || exitcode > 128) {
FATAL("Invalid crash exitcode, expected -127 to 128, but got %s",
getenv("AFL_CRASH_EXITCODE"));
}
fsrv->uses_crash_exitcode = true;
// WEXITSTATUS is 8 bit unsigned
fsrv->crash_exitcode = (u8)exitcode;
}
shm_fuzz = ck_alloc(sizeof(sharedmem_t));
/* initialize cmplog_mode */