implement GetNameOwner

server.c

@@ -277,6 +277,44 @@ int jb_server_client_process_message(struct jb_server *s, int i, uint8_t *data,
                 if (status_code == DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
                     printf("client '%s' (index=%d) now owns name '%s'\n", s->names[client->unique_name_index].name, i, name_str);
                 }
+            } else if (strcmp(member, "GetNameOwner") == 0) {
+                char *name = TRY_NONNULL(char*, wire_get_string(&ctx, NULL), -1);
+                int name_len = strlen(name);
+                if (name_len < 1 || name_len > 256) {
+                    return -1;
+                }
+
+                char *name_str = string_dup(name);
+                if (!name_str) {
+                    return -1;
+                }
+
+                struct jb_client *target = jb_server_name_find_client(s, destination_field->t.str);
+                if (!target || target->unique_name_index < 0) {
+                    uint8_t error_reply_data[512];
+                    memset(error_reply_data, 0, 512);
+                    wire_context_t error_reply_ctx = {
+                        .byte_cursor = 0,
+                        .data = error_reply_data,
+                        .data_len = 511,
+                    };
+                    TRY_NONNEGATIVE(int, wire_compose_error(&error_reply_ctx, &msg, "org.freedesktop.DBus.Error.NameHasNoOwner"), -1);
+                    if (send(s->fds[i].fd, error_reply_data, error_reply_ctx.byte_cursor, 0) != error_reply_ctx.byte_cursor) {
+                        return -1;
+                    }
+                    return 0;
+                }
+
+                uint32_t *body_length;
+                TRY_NONNEGATIVE(int, wire_compose_reply(&reply_ctx, &msg, "s", &body_length), -1);
+                uint32_t body_start = reply_ctx.byte_cursor;
+                TRY_NONNULL(char*, wire_set_string(&reply_ctx, s->names[target->unique_name_index].name), -1);
+                *body_length = reply_ctx.byte_cursor - body_start;
+                if (send(s->fds[i].fd, reply_data, reply_ctx.byte_cursor, 0) != reply_ctx.byte_cursor) {
+                    return -1;
+                }
+
+                printf("%s\n", s->names[target->unique_name_index].name);
             } else {
                 TRY_NONNEGATIVE(int, wire_compose_error(&reply_ctx, &msg, "org.freedesktop.DBus.Error.UnknownMethod"), -1);
                 if (send(s->fds[i].fd, reply_data, reply_ctx.byte_cursor, 0) != reply_ctx.byte_cursor) {
@@ -307,7 +345,6 @@ int jb_server_client_process_message(struct jb_server *s, int i, uint8_t *data,
         if (client->unique_name_index < 0 || !destination_field->present) {
             return -1;
         }
-        printf("sending unicast message from %s\n", s->names[client->unique_name_index].name);
         struct jb_client *target = jb_server_name_find_client(s, destination_field->t.str);
         if (!target) {
             uint8_t error_reply_data[512];
@@ -317,7 +354,7 @@ int jb_server_client_process_message(struct jb_server *s, int i, uint8_t *data,
                 .data = error_reply_data,
                 .data_len = 511,
             };
-            TRY_NONNEGATIVE(int, wire_compose_error(&error_reply_ctx, &msg, "xyz.hippoz.jitterbug.NotImplemented"), -1);
+            TRY_NONNEGATIVE(int, wire_compose_error(&error_reply_ctx, &msg, "org.freedesktop.DBus.Error.NameHasNoOwner"), -1);
             if (send(s->fds[i].fd, error_reply_data, error_reply_ctx.byte_cursor, 0) != error_reply_ctx.byte_cursor) {
                 return -1;
             }

wire.c

@@ -130,8 +130,6 @@ int wire_parse_message(wire_context_t *c, wire_message_t *msg)
 
     size_t header_fields_end = c->byte_cursor + msg->header_fields_length;
 
-    printf(" > start parse!\n");
-
     while (c->byte_cursor < header_fields_end) {
         uint8_t field_code = *TRY_NONNULL(uint8_t*, wire_get_u8(c), -1);
         TRY_NONNULL(char*, wire_get_signature(c, NULL), -1);
@@ -171,8 +169,6 @@ int wire_parse_message(wire_context_t *c, wire_message_t *msg)
         }
     }
 
-    printf(" > parsed!!\n");
-
     /* header ends at 8 byte boundry */
     TRY_NONNULL(bool, wire_align(c, 8), -1);