Minor updates:

- JSONparseCore:
  - Set File mode on create
- SelectableCore:
  - Check pipe() return value on create
  - Validate replacement of stdin with pipe

SelectableCore.cpp

@@ -458,6 +458,7 @@ int CSelectableCore::OpenPort( THandle * Handle )
 int CSelectableCore::OpenForkPipe( THandle * Handle )
 {
     int     pipefd[2];
+    int     newfd;
     char    * Args[50];
     int     Count       = 0;
 
@@ -477,8 +478,7 @@ int CSelectableCore::OpenForkPipe( THandle * Handle )
     }
 
     // Create Pipe
-    pipe( pipefd );
-    if ((pipefd[0] == -1) || (pipefd[1] == -1))
+    if ((pipe( pipefd ) == -1) || (pipefd[0] == -1) || (pipefd[1] == -1))
     {
         // Log event
         if (Log)  Log->Message( LogLevel, dlMedium, "%s: Handle '%s' - Could not open Pipe", Name, Handle->Name );
@@ -512,15 +512,20 @@ int CSelectableCore::OpenForkPipe( THandle * Handle )
     else
     {
         // Fork success - this is child
-        // Replace stdin with Read-end of pipe
-        close( 0 );
-        dup( pipefd[0] );
-        close( pipefd[0] );
-
         // Close Write-end of pipe
         close( pipefd[1] );
 
-        // Replace Processing image
+        // Replace stdin with Read-end of pipe
+        close( 0 );
+        newfd = dup2( pipefd[0], 0 );
+        close( pipefd[0] );
+        if (newfd != 0) {
+            // Replace failed, exit immediately
+            if (Log)  Log->Message( LogLevel, dlMedium, "%s: Handle '%s' - Stdin redirect failed on forked process", Name, Handle->Name );
+            exit( EXIT_FAILURE );
+        }
+
+        // Fork : Replace Processing image
         BuildArgs( Handle->Path, Count, Args );
 //        printf( "Execute params [%d]:\n", Count );
 //        int i = 0;
@@ -532,7 +537,7 @@ int CSelectableCore::OpenForkPipe( THandle * Handle )
 
         // Replace failed, exit immediately
         if (Log)  Log->Message( LogLevel, dlMedium, "%s: Handle '%s' - Exec on forked process failed", Name, Handle->Name );
-        exit(127);
+        exit( EXIT_FAILURE );
     }
 
     // Add to Select Lists