server: Return the total length of the target in query_symlink.

include/wine/server_protocol.h

@@ -4395,7 +4395,9 @@ struct query_symlink_request
 struct query_symlink_reply
 {
     struct reply_header __header;
+    data_size_t    total;
     /* VARARG(target_name,unicode_str); */
+    char __pad_12[4];
 };
 
 
@@ -5485,6 +5487,6 @@ union generic_reply
     struct set_cursor_reply set_cursor_reply;
 };
 
-#define SERVER_PROTOCOL_VERSION 401
+#define SERVER_PROTOCOL_VERSION 402
 
 #endif /* __WINE_WINE_SERVER_PROTOCOL_H */

server/protocol.def

@@ -3057,6 +3057,7 @@ enum message_type
 @REQ(query_symlink)
     obj_handle_t   handle;        /* handle to the symlink */
 @REPLY
+    data_size_t    total;         /* total needed size for name */
     VARARG(target_name,unicode_str); /* target name */
 @END
 

server/request.h

@@ -1980,7 +1980,8 @@ C_ASSERT( FIELD_OFFSET(struct open_symlink_reply, handle) == 8 );
 C_ASSERT( sizeof(struct open_symlink_reply) == 16 );
 C_ASSERT( FIELD_OFFSET(struct query_symlink_request, handle) == 12 );
 C_ASSERT( sizeof(struct query_symlink_request) == 16 );
-C_ASSERT( sizeof(struct query_symlink_reply) == 8 );
+C_ASSERT( FIELD_OFFSET(struct query_symlink_reply, total) == 8 );
+C_ASSERT( sizeof(struct query_symlink_reply) == 16 );
 C_ASSERT( FIELD_OFFSET(struct get_object_info_request, handle) == 12 );
 C_ASSERT( sizeof(struct get_object_info_request) == 16 );
 C_ASSERT( FIELD_OFFSET(struct get_object_info_reply, access) == 8 );

server/symlink.c

@@ -214,6 +214,7 @@ DECL_HANDLER(query_symlink)
                                                 SYMBOLIC_LINK_QUERY, &symlink_ops );
     if (!symlink) return;
 
+    reply->total = symlink->len;
     if (get_reply_max_size() < symlink->len)
         set_error( STATUS_BUFFER_TOO_SMALL );
     else

server/trace.c

@@ -3594,7 +3594,8 @@ static void dump_query_symlink_request( const struct query_symlink_request *req
 
 static void dump_query_symlink_reply( const struct query_symlink_reply *req )
 {
-    dump_varargs_unicode_str( " target_name=", cur_size );
+    fprintf( stderr, " total=%u", req->total );
+    dump_varargs_unicode_str( ", target_name=", cur_size );
 }
 
 static void dump_get_object_info_request( const struct get_object_info_request *req )
@@ -4607,6 +4608,7 @@ static const struct
     { "GENERIC_NOT_MAPPED",          STATUS_GENERIC_NOT_MAPPED },
     { "HANDLES_CLOSED",              STATUS_HANDLES_CLOSED },
     { "HANDLE_NOT_CLOSABLE",         STATUS_HANDLE_NOT_CLOSABLE },
+    { "HOST_UNREACHABLE",            STATUS_HOST_UNREACHABLE },
     { "ILLEGAL_FUNCTION",            STATUS_ILLEGAL_FUNCTION },
     { "INSTANCE_NOT_AVAILABLE",      STATUS_INSTANCE_NOT_AVAILABLE },
     { "INSUFFICIENT_RESOURCES",      STATUS_INSUFFICIENT_RESOURCES },