Open the command pipe with O_RDWR

fixes #11807

diff --git a/lib/compat/externalcommandlistener.cpp b/lib/compat/externalcommandlistener.cpp
index dcd57eb3f65f7c582a61c719b24d693abb642c87..359800dbf07aa4870a3fe90a4420567aaea87a7b 100644 (file)
--- a/lib/compat/externalcommandlistener.cpp
+++ b/lib/compat/externalcommandlistener.cpp
@@ -94,7 +94,7 @@ void ExternalCommandListener::CommandPipeThread(const String& commandPath)
        }
 
        for (;;) {
-               int fd = open(commandPath.CStr(), O_RDONLY | O_NONBLOCK);
+               int fd = open(commandPath.CStr(), O_RDWR | O_NONBLOCK);
 
                if (fd < 0) {
                        Log(LogCritical, "ExternalCommandListener")