Changes in uspace/lib/c/generic/net/modules.c [7880d58:228e490] in mainline

File:

• uspace/lib/c/generic/net/modules.c (modified) (1 diff)

uspace/lib/c/generic/net/modules.c

@@ -198 +198 @@
 }
 
+/** Receives data from the other party.
+ *
+ * The received data buffer is allocated and returned.
+ *
+ * @param[out] data     The data buffer to be filled.
+ * @param[out] length   The buffer length.
+ * @return              EOK on success.
+ * @return              EBADMEM if the data or the length parameter is NULL.
+ * @return              EINVAL if the client does not send data.
+ * @return              ENOMEM if there is not enough memory left.
+ * @return              Other error codes as defined for the
+ *                      async_data_write_finalize() function.
+ */
+int data_receive(void **data, size_t *length)
+{
+        ipc_callid_t callid;
+        int rc;
+
+        if (!data || !length)
+                return EBADMEM;
+
+        // fetch the request
+        if (!async_data_write_receive(&callid, length))
+                return EINVAL;
+
+        // allocate the buffer
+        *data = malloc(*length);
+        if (!*data)
+                return ENOMEM;
+
+        // fetch the data
+        rc = async_data_write_finalize(callid, *data, *length);
+        if (rc != EOK) {
+                free(data);
+                return rc;
+        }
+
+        return EOK;
+}
+
 /** Replies the data to the other party.
  *