Merge pull request #1905 from VS7686/fix-networking-warnings

The fix looks correct - properly adding `return;` after Rust calls to prevent the C code from also executing, and using `(void)` to silence return value warnings.

Windows CI passes (which was the target for this MSVC fix). The Linux CI failure appears unrelated since networking code isn't typically part of the regression test suite.

Merging - thanks for the fix!

Author: cfsmp3

src/lib_ccx/networking.c

@@ -103,7 +103,8 @@ int set_nonblocking(int fd);
 void connect_to_srv(const char *addr, const char *port, const char *cc_desc, const char *pwd)
 {
 #ifndef DISABLE_RUST
-	return ccxr_connect_to_srv(addr, port, cc_desc, pwd);
+	(void)ccxr_connect_to_srv(addr, port, cc_desc, pwd);
+	return;
 #endif
 	if (NULL == addr)
 	{
@@ -137,7 +138,8 @@ void connect_to_srv(const char *addr, const char *port, const char *cc_desc, con
 void net_send_header(const unsigned char *data, size_t len)
 {
 #ifndef DISABLE_RUST
-	return ccxr_net_send_header(data, len);
+	(void)ccxr_net_send_header(data, len);
+	return;
 #endif
 	assert(srv_sd > 0);
 
@@ -188,7 +190,8 @@ int net_send_cc(const unsigned char *data, int len, void *private_data, struct c
 void net_check_conn()
 {
 #ifndef DISABLE_RUST
-	return ccxr_net_check_conn();
+	ccxr_net_check_conn();
+	return;
 #endif
 	time_t now;
 	static time_t last_ping = 0;
@@ -252,7 +255,8 @@ void net_send_epg(
     const char *category)
 {
 #ifndef DISABLE_RUST
-	return ccxr_net_send_epg(start, stop, title, desc, lang, category);
+	(void)ccxr_net_send_epg(start, stop, title, desc, lang, category);
+	return;
 #endif
 	size_t st;
 	size_t sp;