17 lines
826 B
C
17 lines
826 B
C
|
#include "device.h"
|
||
|
|
|
||
|
|
SDL_bool device_read_info(TCPsocket device_socket, char *device_name, struct size *size) {
|
||
|
|
unsigned char buf[DEVICE_NAME_FIELD_LENGTH + 4];
|
||
|
|
if (SDLNet_TCP_Recv(device_socket, buf, sizeof(buf)) <= 0) {
|
||
|
|
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "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;
|
||
|
|
}
|