Redirect stdout to NUL if the log file can't be opened

moonlight-stream · Apr 17, 2022 · 8f01144 · 8f01144
1 parent 771e34f
commit 8f01144
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Showing 2 changed files with 6 additions and 2 deletions.
diff --git a/GS-IPv6-Forwarder b/GS-IPv6-Forwarder
diff --git a/miss/miss.cpp b/miss/miss.cpp
@@ -842,7 +842,11 @@ void ResetLogFile(bool standaloneExe)
         MoveFileExA(currentLogFilePath, oldLogFilePath, MOVEFILE_REPLACE_EXISTING);
 
         // Redirect stdout to this new file
-        freopen(currentLogFilePath, "w", stdout);
+        if (freopen(currentLogFilePath, "w", stdout) == NULL) {
+            // If we couldn't create a log file, just redirect stdout to NUL.
+            // We have to open _something_ or printf() will crash.
+            freopen("NUL", "w", stdout);
+        }
     }
 
     // Print a log header