/*
 * rt_captive.h
 * Captive portal detection and bypass strategies.
 */
#pragma once

#include <stdbool.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef enum {
    RT_PORTAL_NONE,       /* No captive portal — internet is open */
    RT_PORTAL_DETECTED,   /* Captive portal detected (302 or non-204) */
    RT_PORTAL_UNKNOWN,    /* Couldn't determine (connection failed) */
} rt_portal_status_t;

/* Check for captive portal via HTTP 204 connectivity test.
 * Returns portal status. */
rt_portal_status_t rt_captive_detect(void);

/* Attempt to bypass a detected captive portal.
 * Tries strategies in order: direct C2 port, POST accept, wait+retry.
 * Returns true if C2 is reachable after bypass. */
bool rt_captive_bypass(void);

#ifdef __cplusplus
}
#endif