#include "device.h"
#include "log.h"

SDL_bool device_read_info(socket_t device_socket, char *device_name, struct size *size) {
    unsigned char buf[DEVICE_NAME_FIELD_LENGTH + 4];
    if (net_recv(device_socket, buf, sizeof(buf)) <= 0) {
        LOGE("Could not retrieve device information");
        return SDL_FALSE;
    }
    buf[DEVICE_NAME_FIELD_LENGTH - 1] = '\0'; // in case the client sends garbage
    // strcpy is safe here, since name contains at least DEVICE_NAME_FIELD_LENGTH bytes
    // and strlen(buf) < DEVICE_NAME_FIELD_LENGTH
    strcpy(device_name, (char *) buf);
    size->width = (buf[DEVICE_NAME_FIELD_LENGTH] << 8) | buf[DEVICE_NAME_FIELD_LENGTH + 1];
    size->height = (buf[DEVICE_NAME_FIELD_LENGTH + 2] << 8) | buf[DEVICE_NAME_FIELD_LENGTH + 3];
    return SDL_TRUE;
}