Ignore SIGPIPE so we dont crash on broken pipes

src/main.cpp

@@ -1,9 +1,22 @@
-
 #include "CustomAssert.h"
 #include <curl/curl.h>
 #include "Startup.h"
 #include <iostream>
 #include <thread>
+#include "Security/Xor.h"
+#ifndef WIN32
+#include <signal.h>
+void UnixSignalHandler(int sig) {
+    switch (sig) {
+    case SIGPIPE:
+        warn(Sec("ignored signal SIGPIPE: Pipe broken"));
+        break;
+    default:
+        error(Sec("Signal arrived in handler but was not handled: ") + std::to_string(sig));
+        break;
+    }
+}
+#endif // WIN32
 
 [[noreturn]] void loop(){
     DebugPrintTID();
@@ -15,6 +28,11 @@
 
 int main(int argc, char* argv[]) {
     try {
+#ifndef WIN32
+        // ignore SIGPIPE, the signal that is sent for example when a client
+        // disconnects while data is being sent to him ("broken pipe").
+        signal(SIGPIPE, UnixSignalHandler);
+#endif // WIN32
         DebugPrintTID();
         // curl needs to be initialized to properly deallocate its resources later
         Assert(curl_global_init(CURL_GLOBAL_DEFAULT) == CURLE_OK);