Update lumina-checkpass with 2 additional options:

1. "-fd <file descriptor>" pass in a file descriptor (such as 0 for standard input) to read password
2. "-f <file path>" pass in a file path to read the password

Then update lumina-desktop-unified to use the "-f" version with a QTemporaryFile.
I was trying to get it to use the "-fd" version, but the file descriptor I am getting from the QTemporaryFile does not seem to work properly - still need to track this down a bit more later but the -f option works fine for now.

1 files changed, 12 insertions, 1 deletions

diff --git a/src-qt5/core/lumina-desktop-unified/src-screensaver/LLockScreen.cpp b/src-qt5/core/lumina-desktop-unified/src-screensaver/LLockScreen.cpp
index 0ff70142..b791ffd2 100644
--- a/src-qt5/core/lumina-desktop-unified/src-screensaver/LLockScreen.cpp
+++ b/src-qt5/core/lumina-desktop-unified/src-screensaver/LLockScreen.cpp
@@ -77,7 +77,18 @@ void LLockScreen::TryUnlock(){
   this->setEnabled(false);
   QString pass = ui->line_password->text();
     ui->line_password->clear();
-  bool ok = (LUtils::runCmd("lumina-checkpass", QStringList() << pass) == 0);
+  //Create a temporary file for the password, then pass that file descriptor to lumina-checkpass
+  QTemporaryFile *TF = new QTemporaryFile(".XXXXXXXXXX");
+  TF->setAutoRemove(true);
+  bool ok = false;
+  if( TF->open() ){
+    QTextStream in(TF);
+    in << pass;
+    in.flush(); //make sure we push it to the file **right now** since we need to keep the file open
+    ok = (LUtils::runCmd("lumina-checkpass", QStringList() << "-f" << TF->fileName() ) == 0);
+    TF->close();
+  }
+  delete TF;
   if(ok){
     emit ScreenUnlocked();
     this->setEnabled(true);