bool np_get_info(netplay_t *netplay)
{
unsigned sram_size;
uint32_t header[3];
const void *sram = NULL;
global_t *global = global_get_ptr();
if (!socket_receive_all_blocking(netplay->fd, header, sizeof(header)))
{
RARCH_ERR("Failed to receive header from client.\n");
return false;
}
if (global->content_crc != ntohl(header[0]))
{
RARCH_ERR("Content CRC32s differ. Cannot use different games.\n");
return false;
}
if (np_impl_magic() != ntohl(header[1]))
{
RARCH_ERR("Implementations differ, make sure you're using exact same libretro implementations and RetroArch version.\n");
return false;
}
if (core.retro_get_memory_size(RETRO_MEMORY_SAVE_RAM) != ntohl(header[2]))
{
RARCH_ERR("Content SRAM sizes do not correspond.\n");
return false;
}
if (!np_get_nickname(netplay, netplay->fd))
{
RARCH_ERR("Failed to get nickname from client.\n");
return false;
}
/* Send SRAM data to our User 2. */
sram = core.retro_get_memory_data(RETRO_MEMORY_SAVE_RAM);
sram_size = core.retro_get_memory_size(RETRO_MEMORY_SAVE_RAM);
if (!socket_send_all_blocking(netplay->fd, sram, sram_size))
{
RARCH_ERR("Failed to send SRAM data to client.\n");
return false;
}
if (!np_send_nickname(netplay, netplay->fd))
{
RARCH_ERR("Failed to send nickname to client.\n");
return false;
}
#ifndef HAVE_SOCKET_LEGACY
np_log_connection(&netplay->other_addr, 0, netplay->other_nick);
#endif
return true;
}
/**
* netplay_pre_frame_spectate:
* @netplay : pointer to netplay object
*
* Pre-frame for Netplay (spectate mode version).
**/
static void netplay_spectate_pre_frame(netplay_t *netplay)
{
unsigned i;
uint32_t *header;
int new_fd, idx, bufsize;
size_t header_size;
struct sockaddr_storage their_addr;
socklen_t addr_size;
fd_set fds;
struct timeval tmp_tv = {0};
if (!np_is_server(netplay))
return;
FD_ZERO(&fds);
FD_SET(netplay->fd, &fds);
if (socket_select(netplay->fd + 1, &fds, NULL, NULL, &tmp_tv) <= 0)
return;
if (!FD_ISSET(netplay->fd, &fds))
return;
addr_size = sizeof(their_addr);
new_fd = accept(netplay->fd, (struct sockaddr*)&their_addr, &addr_size);
if (new_fd < 0)
{
RARCH_ERR("Failed to accept incoming spectator.\n");
return;
}
idx = -1;
for (i = 0; i < MAX_SPECTATORS; i++)
{
if (netplay->spectate.fds[i] == -1)
{
idx = i;
break;
}
}
/* No vacant client streams :( */
if (idx == -1)
{
socket_close(new_fd);
return;
}
if (!np_get_nickname(netplay, new_fd))
{
RARCH_ERR("Failed to get nickname from client.\n");
socket_close(new_fd);
return;
}
if (!np_send_nickname(netplay, new_fd))
{
RARCH_ERR("Failed to send nickname to client.\n");
socket_close(new_fd);
return;
}
header = np_bsv_header_generate(&header_size,
np_impl_magic());
if (!header)
{
RARCH_ERR("Failed to generate BSV header.\n");
socket_close(new_fd);
return;
}
bufsize = header_size;
setsockopt(new_fd, SOL_SOCKET, SO_SNDBUF, (const char*)&bufsize,
sizeof(int));
if (!socket_send_all_blocking(new_fd, header, header_size))
{
RARCH_ERR("Failed to send header to client.\n");
socket_close(new_fd);
free(header);
return;
}
free(header);
netplay->spectate.fds[idx] = new_fd;
#ifndef HAVE_SOCKET_LEGACY
np_log_connection(&their_addr, idx, netplay->other_nick);
#endif
}
bool np_get_info(netplay_t *netplay)
{
unsigned sram_size;
uint32_t header[3];
retro_ctx_memory_info_t mem_info;
uint32_t *content_crc_ptr = NULL;
const void *sram = NULL;
if (!socket_receive_all_blocking(netplay->fd, header, sizeof(header)))
{
RARCH_ERR("Failed to receive header from client.\n");
return false;
}
content_ctl(CONTENT_CTL_GET_CRC, &content_crc_ptr);
if (*content_crc_ptr != ntohl(header[0]))
{
RARCH_ERR("Content CRC32s differ. Cannot use different games.\n");
return false;
}
if (np_impl_magic() != ntohl(header[1]))
{
RARCH_ERR("Implementations differ, make sure you're using exact same "
"libretro implementations and RetroArch version.\n");
return false;
}
mem_info.id = RETRO_MEMORY_SAVE_RAM;
core_ctl(CORE_CTL_RETRO_GET_MEMORY, &mem_info);
if (mem_info.size != ntohl(header[2]))
{
RARCH_ERR("Content SRAM sizes do not correspond.\n");
return false;
}
if (!np_get_nickname(netplay, netplay->fd))
{
RARCH_ERR("Failed to get nickname from client.\n");
return false;
}
/* Send SRAM data to our User 2. */
sram = mem_info.data;
sram_size = mem_info.size;
if (!socket_send_all_blocking(netplay->fd, sram, sram_size))
{
RARCH_ERR("Failed to send SRAM data to client.\n");
return false;
}
if (!np_send_nickname(netplay, netplay->fd))
{
RARCH_ERR("Failed to send nickname to client.\n");
return false;
}
#ifndef HAVE_SOCKET_LEGACY
np_log_connection(&netplay->other_addr, 0, netplay->other_nick);
#endif
return true;
}
