1 files changed, 141 insertions, 0 deletions
diff --git a/hicn-light/src/config/controlListListeners.c b/hicn-light/src/config/controlListListeners.c
new file mode 100755
index 000000000..a149051e2
--- /dev/null
+++ b/hicn-light/src/config/controlListListeners.c
@@ -0,0 +1,141 @@
+/*
+ * Copyright (c) 2017-2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <src/config.h>
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <strings.h>
+
+#include <parc/algol/parc_Memory.h>
+#include <parc/assert/parc_Assert.h>
+
+#include <src/config/controlListListeners.h>
+#include <src/utils/commands.h>
+#include <src/utils/utils.h>
+
+static CommandReturn _controlListListeners_Execute(CommandParser *parser,
+                                                   CommandOps *ops,
+                                                   PARCList *args);
+static CommandReturn _controlListListeners_HelpExecute(CommandParser *parser,
+                                                       CommandOps *ops,
+                                                       PARCList *args);
+
+static const char *_commandListListeners = "list listeners";
+static const char *_commandListListenersHelp = "help list listeners";
+static const char *listenerType[5] = {"TCP", "UDP", "ETHER", "LOCAL", "HICN"};
+
+// ====================================================
+
+CommandOps *controlListListeners_Create(ControlState *state) {
+  return commandOps_Create(state, _commandListListeners, NULL,
+                           _controlListListeners_Execute, commandOps_Destroy);
+}
+
+CommandOps *controlListListeners_HelpCreate(ControlState *state) {
+  return commandOps_Create(state, _commandListListenersHelp, NULL,
+                           _controlListListeners_HelpExecute,
+                           commandOps_Destroy);
+}
+
+// ====================================================
+
+static CommandReturn _controlListListeners_HelpExecute(CommandParser *parser,
+                                                       CommandOps *ops,
+                                                       PARCList *args) {
+  printf("list listeners\n");
+  printf("\n");
+
+  return CommandReturn_Success;
+}
+
+static CommandReturn _controlListListeners_Execute(CommandParser *parser,
+                                                   CommandOps *ops,
+                                                   PARCList *args) {
+  if (parcList_Size(args) != 2) {
+    _controlListListeners_HelpExecute(parser, ops, args);
+    return CommandReturn_Failure;
+  }
+
+  ControlState *state = ops->closure;
+
+  // send message and receive response
+  struct iovec *response = utils_SendRequest(state, LIST_LISTENERS, NULL, 0);
+  if (!response) {  // get NULL pointer = FAILURE
+    return CommandReturn_Failure;
+  }
+
+  // Process/Print message
+  header_control_message *receivedHeader =
+      (header_control_message *)response[0].iov_base;
+  uint8_t *receivedPayload = (uint8_t *)response[1].iov_base;
+
+  // Allocate output to pass to the main function if the call is not interactive
+  char **commandOutputMain = NULL;
+  if (!controlState_IsInteractive(state) && receivedHeader->length > 0) {
+    commandOutputMain =
+        parcMemory_Allocate(sizeof(char *) * receivedHeader->length);
+    for (size_t j = 0; j < receivedHeader->length; j++) {
+      commandOutputMain[j] = parcMemory_Allocate(sizeof(char) * 128);
+    }
+  }
+
+  char *addrString = NULL;
+  if (receivedHeader->length > 0) {
+    printf("%6.6s %50.70s %s\n", "iface", "address", "type");
+  } else {
+    printf(" --- No entry in the list \n");
+  }
+
+  for (int i = 0; i < receivedHeader->length; i++) {
+    list_listeners_command *listListenersCommand =
+        (list_listeners_command *)(receivedPayload +
+                                   (i * sizeof(list_listeners_command)));
+
+    addrString = utils_CommandAddressToString(listListenersCommand->addressType,
+                                              &listListenersCommand->address,
+                                              &listListenersCommand->port);
+
+    PARCBufferComposer *composer = parcBufferComposer_Create();
+
+    parcBufferComposer_Format(composer, "%6u %50.70s %3s",
+                              listListenersCommand->connid, addrString,
+                              listenerType[listListenersCommand->encapType]);
+
+    PARCBuffer *tempBuffer = parcBufferComposer_ProduceBuffer(composer);
+    char *result = parcBuffer_ToString(tempBuffer);
+    parcBuffer_Release(&tempBuffer);
+
+    if (!controlState_IsInteractive(state)) {
+      strcpy(commandOutputMain[i], result);
+    }
+
+    puts(result);
+    parcMemory_Deallocate((void **)&result);
+    parcBufferComposer_Release(&composer);
+  }
+
+  controlState_SetCommandOutput(state, commandOutputMain);
+
+  // DEALLOCATE
+  parcMemory_Deallocate((void **)&addrString);
+  parcMemory_Deallocate(&receivedHeader);   // free response[0].iov_base
+  parcMemory_Deallocate(&receivedPayload);  // free response[1].iov_base
+  parcMemory_Deallocate(&response);         // free iovec pointer
+
+  return CommandReturn_Success;
+}