SOCKET sockets_accept(SOCKET s, struct sockaddr *addr, socklen_t *addrlen)
{
SOCKET client = INVALID_SOCKET;
sockets_begin(s, FD_ACCEPT);
do {
client = WSAAccept(s, addr, addrlen, NULL, 0);
} while (SOCKET_ISERR(client) && !sockets_wait(INFINITE));
sockets_end(s);
return client;
}
static int gdb_server(int port)
{
int sock;
int client;
struct sockaddr_in addr;
socklen_t len;
int arg;
struct gdb_data data;
int i;
sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
if (SOCKET_ISERR(sock)) {
pr_error("gdb: can't create socket");
return -1;
}
arg = 1;
if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
(void *)&arg, sizeof(arg)) < 0)
pr_error("gdb: warning: can't reuse socket address");
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
addr.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
printc_err("gdb: can't bind to port %d: %s\n",
port, last_error());
closesocket(sock);
return -1;
}
if (listen(sock, 1) < 0) {
pr_error("gdb: can't listen on socket");
closesocket(sock);
return -1;
}
printc("Bound to port %d. Now waiting for connection...\n", port);
len = sizeof(addr);
client = sockets_accept(sock, (struct sockaddr *)&addr, &len);
if (SOCKET_ISERR(client)) {
pr_error("gdb: failed to accept connection");
closesocket(sock);
return -1;
}
closesocket(sock);
printc("Client connected from %s:%d\n",
inet_ntoa(addr.sin_addr), htons(addr.sin_port));
gdb_init(&data, client);
/* Put the hardware breakpoint setting into a known state. */
printc("Clearing all breakpoints...\n");
for (i = 0; i < device_default->max_breakpoints; i++)
device_setbrk(device_default, i, 0, 0);
#ifdef DEBUG_GDB
printc("starting GDB reader loop...\n");
#endif
gdb_reader_loop(&data);
#ifdef DEBUG_GDB
printc("... reader loop returned\n");
#endif
closesocket(client);
return data.error ? -1 : 0;
}