scrcpy/app/src/device.c
Romain Vimont 59feb2a15c Group common includes into common.h
Include config.h and compat.h in common.h, and include common.h from all
source files.
2021-01-08 19:22:10 +01:00

23 lines
864 B
C

#include "device.h"
#include "util/log.h"
bool
device_read_info(socket_t device_socket, char *device_name, struct size *size) {
unsigned char buf[DEVICE_NAME_FIELD_LENGTH + 4];
int r = net_recv_all(device_socket, buf, sizeof(buf));
if (r < DEVICE_NAME_FIELD_LENGTH + 4) {
LOGE("Could not retrieve device information");
return false;
}
// in case the client sends garbage
buf[DEVICE_NAME_FIELD_LENGTH - 1] = '\0';
// 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 true;
}