From 0313638f26ac9ef314152f0bb7ef95fa01c0e8d7 Mon Sep 17 00:00:00 2001
From: Jiri Malak <malak.jiri@gmail.com>
Date: Tue, 10 Sep 2024 09:18:46 +0200
Subject: [PATCH] trap: cleanup par trap code

improve handling of errors
source code formatting changes
---
 bld/trap/par/c/parlink.c | 3 +++
 bld/trap/par/c/parproc.c | 9 ++++-----
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/bld/trap/par/c/parlink.c b/bld/trap/par/c/parlink.c
index 200b5f269b..44cbc1dbc9 100644
--- a/bld/trap/par/c/parlink.c
+++ b/bld/trap/par/c/parlink.c
@@ -199,6 +199,9 @@ const char *RemoteLinkSet( const char *parms )
             port <<= 4;
             port += ch;
         }
+        if( port == 0 ) {
+            return( InvalidPort );
+        }
     } else {
         return( InvalidPort );
     }
diff --git a/bld/trap/par/c/parproc.c b/bld/trap/par/c/parproc.c
index 56d5644b07..581a875bff 100644
--- a/bld/trap/par/c/parproc.c
+++ b/bld/trap/par/c/parproc.c
@@ -420,8 +420,8 @@ static int DataGetByte( hw_data *hwd, unsigned long wait )
 
 static unsigned DataGet( hw_data *hwd, char *data, unsigned len )
 {
-    unsigned   	get_len;
-    unsigned   	i;
+    unsigned    get_len;
+    unsigned    i;
     char        c;
 
     get_len = DataGetByte( hwd, RELINQUISH );
@@ -528,7 +528,7 @@ static int DataPutByte( hw_data *hwd, unsigned char data, unsigned long wait )
 
 static unsigned DataPut( hw_data *hwd, char *data, unsigned len )
 {
-    unsigned   	count;
+    unsigned    count;
 
     if( len >= 0x80 ) {
         DataPutByte( hwd, (len >> 8) | 0x80, RELINQUISH );
@@ -580,7 +580,7 @@ static bool CountTwidle( hw_data *hwd )
         char buf[10];
 
         itoa( type, buf, 16 );
-        cputs( " Type " ); cputs( buf );
+        dbgrtn( " Type " ); dbgrtn( buf );
     }
   #endif
 #endif
@@ -766,4 +766,3 @@ static void DataDisconnect( hw_data *hwd )
         { /* delay while other side catches up */ }
     DataReset( hwd, true );
 }
-