Fix setsockopt calls for Windows compatibility

On Windows, setsockopt expects 'const char *' for the option value
parameter, not 'void *'. Add WIN32-specific casts for TCP_NODELAY
setsockopt calls in edge_utils.c and sn_utils.c.

Made-with: Cursor

Author: mchsk

src/edge_utils.c

@@ -1074,7 +1074,11 @@ static ssize_t sendto_sock (n2n_edge_t *eee, const void * buf,
     // if the connection is tcp, i.e. not the regular sock...
     if(eee->conf.connect_tcp) {
 
+#ifdef WIN32
+        setsockopt(eee->sock, IPPROTO_TCP, TCP_NODELAY, (const char *)&value, sizeof(value));
+#else
         setsockopt(eee->sock, IPPROTO_TCP, TCP_NODELAY, &value, sizeof(value));
+#endif
         value = 1;
 #ifdef LINUX
         setsockopt(eee->sock, IPPROTO_TCP, TCP_CORK, &value, sizeof(value));
@@ -1093,7 +1097,11 @@ static ssize_t sendto_sock (n2n_edge_t *eee, const void * buf,
     // if the connection is tcp, i.e. not the regular sock...
     if(eee->conf.connect_tcp) {
         value = 1; /* value should still be set to 1 */
+#ifdef WIN32
+        setsockopt(eee->sock, IPPROTO_TCP, TCP_NODELAY, (const char *)&value, sizeof(value));
+#else
         setsockopt(eee->sock, IPPROTO_TCP, TCP_NODELAY, &value, sizeof(value));
+#endif
 #ifdef LINUX
         value = 0;
         setsockopt(eee->sock, IPPROTO_TCP, TCP_CORK, &value, sizeof(value));

src/sn_utils.c

@@ -517,7 +517,11 @@ static ssize_t sendto_sock(n2n_sn_t *sss,
     // if the connection is tcp, i.e. not the regular sock...
     if((socket_fd >= 0) && (socket_fd != sss->sock)) {
 
+#ifdef WIN32
+        setsockopt(socket_fd, IPPROTO_TCP, TCP_NODELAY, (const char *)&value, sizeof(value));
+#else
         setsockopt(socket_fd, IPPROTO_TCP, TCP_NODELAY, &value, sizeof(value));
+#endif
         value = 1;
 #ifdef LINUX
         setsockopt(socket_fd, IPPROTO_TCP, TCP_CORK, &value, sizeof(value));
@@ -537,7 +541,11 @@ static ssize_t sendto_sock(n2n_sn_t *sss,
     // if the connection is tcp, i.e. not the regular sock...
     if((socket_fd >= 0) && (socket_fd != sss->sock)) {
         value = 1; /* value should still be set to 1 */
+#ifdef WIN32
+        setsockopt(socket_fd, IPPROTO_TCP, TCP_NODELAY, (const char *)&value, sizeof(value));
+#else
         setsockopt(socket_fd, IPPROTO_TCP, TCP_NODELAY, &value, sizeof(value));
+#endif
 #ifdef LINUX
         value = 0;
         setsockopt(socket_fd, IPPROTO_TCP, TCP_CORK, &value, sizeof(value));