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added AFL_MAP_SIZE (wip)

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This commit is contained in:
van Hauser
2020-04-17 09:10:49 +02:00
parent 16ce555845
commit 5b70d23211
15 changed files with 116 additions and 76 deletions
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24
src/afl-fuzz-state.c
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@ -99,7 +99,11 @@ void afl_state_init(afl_state_t *afl) {
afl->fsrv.use_stdin = 1;
afl->fsrv.map_size = MAP_SIZE;
if (afl->afl_env.map_size > 8 && afl->afl_env.map_size <= (1 << 29))
afl->fsrv.map_size = afl->afl_env.map_size;
else
afl->fsrv.map_size = MAP_SIZE;
afl->fsrv.function_opt = (u8 *)afl;
afl->fsrv.function_ptr = &maybe_add_auto;
@ -324,6 +328,24 @@ void read_afl_environment(afl_state_t *afl, char **envp) {
afl->afl_env.afl_path =
(u8 *)get_afl_env(afl_environment_variables[i]);
} else if (!strncmp(env, "AFL_MAP_SIZE",
afl_environment_variable_len) ||
!strncmp(env, "AFL_MAPSIZE",
afl_environment_variable_len)) {
afl->afl_env.map_size =
atoi((u8 *)get_afl_env(afl_environment_variables[i]));
if (afl->afl_env.map_size < 8 || afl->afl_env.map_size > (1 << 29))
FATAL(
"the specified AFL_MAP_SIZE size is illegal and must be "
"between 2^3 and 2^30: %u\n",
afl->afl_env.map_size);
if (afl->afl_env.map_size % 8)
afl->afl_env.map_size = (((afl->afl_env.map_size >> 3) + 1) << 3);
} else if (!strncmp(env, "AFL_PRELOAD",
afl_environment_variable_len)) {