add some exception checking around some cases where vector types are used;

src/common/lookups/AffiliationLookup.cpp

@@ -305,7 +305,9 @@ bool AffiliationLookup::grantCh(uint32_t dstId, uint32_t srcId, uint32_t grantTi
 
     std::lock_guard<std::mutex> lock(m_mutex);
     uint32_t chNo = m_chLookup->getFirstRFChannel();
-    m_chLookup->removeRFCh(chNo);
+    if (!m_chLookup->removeRFCh(chNo)) {
+        return false;
+    }
 
     m_grantChTable[dstId] = chNo;
     m_grantSrcIdTable[dstId] = srcId;

src/common/lookups/ChannelLookup.cpp

@@ -71,12 +71,18 @@ bool ChannelLookup::addRFCh(uint32_t chNo, bool force)
 
 /* Helper to remove a RF channel. */
 
-void ChannelLookup::removeRFCh(uint32_t chNo)
+bool ChannelLookup::removeRFCh(uint32_t chNo)
 {
     if (chNo == 0U) {
-        return;
+        return false;
     }
 
+    try {
         auto it = std::find(m_rfChTable.begin(), m_rfChTable.end(), chNo);
         m_rfChTable.erase(it);
+    } catch (...) {
+        return false;
+    }
+
+    return true;
 }

src/common/lookups/ChannelLookup.h

@@ -206,8 +206,9 @@ namespace lookups
         /**
          * @brief Helper to remove a RF channel.
          * @param chNo Channel Number.
+         * @returns bool True, if channel remove, otherwise false.
          */
-        void removeRFCh(uint32_t chNo);
+        bool removeRFCh(uint32_t chNo);
         /**
          * @brief Helper to determine if there are any RF channels available..
          * @returns bool True, if any RF channels are available for use, otherwise false.

src/common/network/udp/Socket.cpp

@@ -467,6 +467,7 @@ bool Socket::write(BufferVector& buffers, ssize_t* lenWritten) noexcept
             continue;
         }
 
+        try {
             // are we crypto wrapped?
             if (m_isCryptoWrapped && m_presharedKey != nullptr) {
                 uint32_t cryptedLen = length * sizeof(uint8_t);
@@ -526,6 +527,10 @@ bool Socket::write(BufferVector& buffers, ssize_t* lenWritten) noexcept
             headers[i].msg_hdr.msg_control = 0;
             headers[i].msg_hdr.msg_controllen = 0;
         }
+        catch (...) {
+            --size;
+        }
+    }
 
     bool skip = false;
     for (auto& buffer : buffers) {