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Correctly handle env var.

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This commit is contained in:
Edznux
2020-10-05 22:01:50 +02:00
parent 9b112fde1a
commit 2bf3a70e2b
3 changed files with 16 additions and 5 deletions
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2
include/afl-fuzz.h
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@ -359,7 +359,7 @@ typedef struct afl_env_vars {
u8 *afl_tmpdir, *afl_custom_mutator_library, *afl_python_module, *afl_path,
*afl_hang_tmout, *afl_forksrv_init_tmout, *afl_skip_crashes, *afl_preload,
*afl_max_det_extras;
*afl_max_det_extras, *afl_statsd_host, *afl_statsd_port;
} afl_env_vars_t;

13
src/afl-fuzz-state.c
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@ -363,6 +363,19 @@ void read_afl_environment(afl_state_t *afl, char **envp) {
afl->afl_env.afl_forksrv_init_tmout =
(u8 *)get_afl_env(afl_environment_variables[i]);
} else if (!strncmp(env, "AFL_STATSD_HOST",
afl_environment_variable_len)) {
afl->afl_env.afl_statsd_host =
(u8 *)get_afl_env(afl_environment_variables[i]);
} else if (!strncmp(env, "AFL_STATSD_PORT",
afl_environment_variable_len)) {
afl->afl_env.afl_statsd_port =
(u8 *)get_afl_env(afl_environment_variables[i]);
}
} else {

6
src/afl-fuzz-statsd.c
View File

@ -60,10 +60,8 @@ int statsd_send_metric(afl_state_t *afl) {
u16 port = STATSD_DEFAULT_PORT;
char *host = STATSD_DEFAULT_HOST;
char *port_env;
char *host_env;
if ((port_env = getenv("AFL_STATSD_PORT")) != NULL) { port = atoi(port_env); }
if ((host_env = getenv("AFL_STATSD_HOST")) != NULL) { host = host_env; }
if (afl->afl_env.afl_statsd_port) { port = atoi(afl->afl_env.afl_statsd_port); }
if (afl->afl_env.afl_statsd_host) { host = afl->afl_env.afl_statsd_host; }
/* statds_sock is a global variable. We set it once in the beginning and reuse
the socket. If the sendto later fail, we reset it to 0 to be able to recreate