From 0b006f257ac21731b09c389eec0062b8338450d6 Mon Sep 17 00:00:00 2001
From: Rob Swindell <rob@synchro.net>
Date: Mon, 7 Feb 2022 22:05:23 -0800
Subject: [PATCH] Setting IgnoreDCD=true causes wait_for_call() to immediate
return
For Nelgin's null modem setup, putty doesn't raise DTR?
<nelgin> sexpots 1492 root 3u CHR 4,64 0t0 90 /dev/ttyS0
<nelgin> Well, it's listening, but when I connect with putty I get nothing.
<nelgin> DigitalMan, probably always assume a client is connected since I have my pc wired to my linux box.
---
src/sexpots/sexpots.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/src/sexpots/sexpots.c b/src/sexpots/sexpots.c
index b09784291a..983c020c80 100644
--- a/src/sexpots/sexpots.c
+++ b/src/sexpots/sexpots.c
@@ -759,7 +759,7 @@ int modem_status(COM_HANDLE com_handle)
/* Returns TRUE if DCD (Data Carrier Detect) is high */
BOOL carrier_detect(COM_HANDLE com_handle)
{
- return (modem_status(com_handle)&COM_DCD) ? TRUE:FALSE;
+ return (dcd_ignore || (modem_status(com_handle)&COM_DCD)) ? TRUE:FALSE;
}
/****************************************************************************/
@@ -779,7 +779,7 @@ BOOL wait_for_call(COM_HANDLE com_handle)
if(!comRaiseDTR(com_handle))
lprintf(LOG_ERR,"ERROR %u raising DTR", COM_ERROR_VALUE);
- if(com_alreadyconnected)
+ if(com_alreadyconnected || dcd_ignore)
return TRUE;
if(!mdm_null) {
@@ -1250,7 +1250,7 @@ BOOL handle_call(void)
while(!terminated) {
- if(!dcd_ignore && !carrier_detect(com_handle)) {
+ if(!carrier_detect(com_handle)) {
lprintf(LOG_WARNING,"Loss of Carrier Detect (DCD) detected");
break;
}
@@ -1322,7 +1322,7 @@ BOOL hangup_call(COM_HANDLE com_handle)
int attempt;
int mdm_status;
- if(!carrier_detect(com_handle))/* DCD already low */
+ if(dcd_ignore || !carrier_detect(com_handle))/* DCD already low */
return TRUE;
lprintf(LOG_DEBUG,"Waiting for transmit buffer to empty");
--
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