Bump version to 0.9.4

docs/releases.md

@@ -22,3 +22,4 @@ repository can create a new release.
 1. Update the changelog to whatever makes sense for this release. It should be
    focused on user-facing changes.
 1. Confirm all assets are uploaded for all the supported platforms.
+1. Merge the Pull Request into `main` and you're done :tada:

package.json

@@ -1,6 +1,6 @@
 {
   "name": "desktop-trampoline",
-  "version": "0.9.3",
+  "version": "0.9.4",
   "main": "index.js",
   "keywords": [],
   "author": "",

src/desktop-trampoline.c

@@ -66,7 +66,9 @@ int runTrampolineClient(SOCKET *outSocket, int argc, char **argv, char **envp) {
   *outSocket = socket;
 
   if (connectSocket(socket, desktopPort) != 0) {
-    printSocketError("ERROR: Couldn't connect to 127.0.0.1:%d", desktopPort);
+    printSocketError("ERROR: Couldn't connect to 127.0.0.1:%d - Please make "
+                     "sure you don't have an antivirus or firewall blocking "
+                     "this connection.", desktopPort);
     return 1;
   }
 

src/socket.c

@@ -6,13 +6,30 @@
 #include <stdlib.h>
 #include <string.h>
 
+#ifdef WINDOWS
+
+#define MAX_WSA_ERROR_DESCRIPTION_LENGTH 4096
+
+void getWSALastErrorDescription(wchar_t *buffer, int bufferLength) {
+  FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, 
+                 NULL, WSAGetLastError(),
+                 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+                 (LPWSTR)buffer, bufferLength - 1, NULL);
+}
+
+#endif
+
 int initializeNetwork(void) {
 #ifdef WINDOWS
   // Initialize Winsock
   WSADATA wsaData;
   int result = WSAStartup(MAKEWORD(2,2), &wsaData);
   if (result != NO_ERROR) {
-    fprintf(stderr, "ERROR: WSAStartup failed: %d\n", result);
+    wchar_t errorDescription[MAX_WSA_ERROR_DESCRIPTION_LENGTH];
+    getWSALastErrorDescription(errorDescription, MAX_WSA_ERROR_DESCRIPTION_LENGTH);
+
+    fprintf(stderr, "ERROR: WSAStartup failed (%d). Error %ld: %ls\n",
+            result, WSAGetLastError(), errorDescription);
     return 1;
   }
 #endif
@@ -55,8 +72,7 @@ int readSocket(SOCKET socket, void *buffer, size_t length) {
   return recv(socket, buffer, length, 0);
 }
 
-void printSocketError(char *fmt, ...) 
-{    
+void printSocketError(char *fmt, ...) {
   char formatted_string[4096];
 
   va_list argptr;
@@ -65,7 +81,10 @@ void printSocketError(char *fmt, ...)
   va_end(argptr);
 
 #ifdef WINDOWS
-  fprintf(stderr, "%s: %ld\n", formatted_string, WSAGetLastError());
+  wchar_t errorDescription[MAX_WSA_ERROR_DESCRIPTION_LENGTH];
+  getWSALastErrorDescription(errorDescription, MAX_WSA_ERROR_DESCRIPTION_LENGTH);
+
+  fprintf(stderr, "%s (%ld): %ls\n", formatted_string, WSAGetLastError(), errorDescription);
 #else
   fprintf(stderr, "%s (%d): %s\n", formatted_string, errno, strerror(errno));
 #endif