rust/core: Make AppProto type u16

rust/src/core.rs

@@ -40,7 +40,7 @@ pub const STREAM_DEPTH:    u8 = 0x20;
 pub const STREAM_MIDSTREAM:u8 = 0x40;
 
 // Application layer protocol identifiers (app-layer-protos.h)
-pub type AppProto = std::os::raw::c_int;
+pub type AppProto = u16;
 
 pub const ALPROTO_UNKNOWN : AppProto = 0;
 pub static mut ALPROTO_FAILED : AppProto = 0; // updated during init

rust/src/dcerpc/dcerpc.rs

@@ -1363,7 +1363,7 @@ fn probe(input: &[u8]) -> (bool, bool) {
 
 #[no_mangle]
 pub extern "C" fn rs_dcerpc_probe_tcp(direction: u8, input: *const u8,
-                                      len: u32, rdir: *mut u8) -> i32
+                                      len: u32, rdir: *mut u8) -> AppProto
 {
     SCLogDebug!("Probing packet for DCERPC");
     if len == 0 {

rust/src/dcerpc/dcerpc_udp.rs

@@ -306,7 +306,7 @@ fn probe(input: &[u8]) -> (bool, bool) {
 
 #[no_mangle]
 pub extern "C" fn rs_dcerpc_probe_udp(direction: u8, input: *const u8,
-                                      len: u32, rdir: *mut u8) -> i32
+                                      len: u32, rdir: *mut u8) -> core::AppProto
 {
     SCLogDebug!("Probing the packet for DCERPC/UDP");
     if len == 0 {