esl_execute distroys handle->last_ievent internally so we should dup …

…anything for safety before esl_execute

icharge.c

@@ -11,7 +11,11 @@ int check_account_password(const char *account, const char *password)

void process_event(esl_handle_t *handle, esl_event_t *event)
{
    const char *uuid;
    const char *uuid = esl_event_get_header(event, "Caller-Unique-ID");

    uuid = strdup(uuid);
    if (!uuid) abort();

    switch (event->event_id) {
        case ESL_EVENT_CHANNEL_PARK:
        {
@@ -22,7 +26,6 @@ void process_event(esl_handle_t *handle, esl_event_t *event)

            if (!service || (service && strcmp(service, "icharge"))) break;

            uuid = esl_event_get_header(event, "Caller-Unique-ID");
            esl_log(ESL_LOG_INFO, "New Call %s\n", uuid);

            esl_execute(handle, "answer", NULL, uuid);
@@ -50,7 +53,6 @@ void process_event(esl_handle_t *handle, esl_event_t *event)
            const char *application;
            const char *charge_state;

            uuid = esl_event_get_header(event, "Caller-Unique-ID");
            application = esl_event_get_header(event, "Application");
            charge_state = esl_event_get_header(event, "variable_charge_state");

@@ -73,12 +75,13 @@ void process_event(esl_handle_t *handle, esl_event_t *event)
            break;
        }
        case ESL_EVENT_CHANNEL_HANGUP_COMPLETE:
            uuid = esl_event_get_header(event, "Caller-Unique-ID");
            esl_log(ESL_LOG_INFO, "Hangup %s\n", uuid);
            break;
        default:
            break;
    }

    free((void *)uuid);
}

int main(void)