* repeater: various "region" CLI changes

* transport codes 0000 and FFFF reserved

src/helpers/RegionMap.cpp

@@ -144,6 +144,8 @@ RegionEntry* RegionMap::findMatch(mesh::Packet* packet, uint8_t mask) {
 }
 
 RegionEntry* RegionMap::findByName(const char* name) {
+  if (strcmp(name, "*") == 0) return &wildcard;
+
   for (int i = 0; i < num_regions; i++) {
     auto region = &regions[i];
     if (strcmp(name, region->name) == 0) return region;
@@ -152,6 +154,8 @@ RegionEntry* RegionMap::findByName(const char* name) {
 }
 
 RegionEntry* RegionMap::findByNamePrefix(const char* prefix) {
+  if (strcmp(prefix, "*") == 0) return &wildcard;
+
   RegionEntry* partial = NULL;
   for (int i = 0; i < num_regions; i++) {
     auto region = &regions[i];

src/helpers/TransportKeyStore.cpp

@@ -9,6 +9,11 @@ uint16_t TransportKey::calcTransportCode(const mesh::Packet* packet) const {
   sha.update(&type, 1);
   sha.update(packet->payload, packet->payload_len);
   sha.finalizeHMAC(key, sizeof(key), &code, 2);
+  if (code == 0) {     // reserve codes 0000 and FFFF
+    code++;
+  } else if (code == 0xFFFF) {
+    code--;
+  }
   return code;
 }
 

src/helpers/TxtDataHelpers.cpp

@@ -19,6 +19,13 @@ void StrHelper::strzcpy(char* dest, const char* src, size_t buf_sz) {
   }
 }
 
+bool StrHelper::isBlank(const char* str) {
+  while (*str) {
+    if (*str++ != ' ') return false;
+  }
+  return true;
+}
+
 #include <Arduino.h>
 
 union int32_Float_t 

src/helpers/TxtDataHelpers.h

@@ -12,4 +12,5 @@ public:
   static void strncpy(char* dest, const char* src, size_t buf_sz);
   static void strzcpy(char* dest, const char* src, size_t buf_sz);   // pads with trailing nulls
   static const char* ftoa(float f);
+  static bool isBlank(const char* str);
 };