Changes in uspace/srv/devman/main.c [3ad7b1c:431d6d6] in mainline

File:

• uspace/srv/devman/main.c (modified) (3 diffs)

uspace/srv/devman/main.c

@@ -515 +515 @@
 }
 
+/** Find device path by its handle. */
+static void devman_get_device_path_by_handle(ipc_callid_t iid,
+    ipc_call_t *icall)
+{
+        devman_handle_t handle = IPC_GET_ARG1(*icall);
+
+        fun_node_t *fun = find_fun_node(&device_tree, handle);
+        if (fun == NULL) {
+                async_answer_0(iid, ENOMEM);
+                return;
+        }
+
+        ipc_callid_t data_callid;
+        size_t data_len;
+        if (!async_data_read_receive(&data_callid, &data_len)) {
+                async_answer_0(iid, EINVAL);
+                return;
+        }
+
+        void *buffer = malloc(data_len);
+        if (buffer == NULL) {
+                async_answer_0(data_callid, ENOMEM);
+                async_answer_0(iid, ENOMEM);
+                return;
+        }
+
+        size_t sent_length = str_size(fun->pathname);
+        if (sent_length > data_len) {
+                sent_length = data_len;
+        }
+
+        async_data_read_finalize(data_callid, fun->pathname, sent_length);
+        async_answer_0(iid, EOK);
+
+        free(buffer);
+}
+
 
 /** Function for handling connections from a client to the device manager. */
@@ -537 +574 @@
                         devman_function_get_handle_by_class(callid, &call);
                         break;
+                case DEVMAN_DEVICE_GET_DEVICE_PATH:
+                        devman_get_device_path_by_handle(callid, &call);
+                        break;
                 default:
                         async_answer_0(callid, ENOENT);
@@ -595 +635 @@
         if (driver == NULL) {
                 log_msg(LVL_ERROR, "IPC forwarding refused - " \
-                    "the device %" PRIun " is not in usable state.", handle);
+                    "the device %" PRIun "(%s) is not in usable state.",
+                    handle, dev->pfun->pathname);
                 async_answer_0(iid, ENOENT);
                 return;