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Centralize TCP loss-of-connection bit twiddling

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5542 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2013-01-20 17:21:42 +00:00
parent b4cff0fa72
commit d39a78a910
1 changed files with 8 additions and 1 deletions
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9
netutils/telnetd/telnetd_driver.c
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@ -1,7 +1,7 @@
/**************************************************************************** /****************************************************************************
* apps/netutils/telnetd_driver.c * apps/netutils/telnetd_driver.c
* *
* Copyright (C) 2007, 2009, 2011-2012 Gregory Nutt. All rights reserved. * Copyright (C) 2007, 2009, 2011-2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org> * Author: Gregory Nutt <gnutt@nuttx.org>
* *
* This is a leverage of similar logic from uIP which has a compatible BSD * This is a leverage of similar logic from uIP which has a compatible BSD
@ -593,6 +593,13 @@ static ssize_t telnetd_read(FAR struct file *filep, FAR char *buffer, size_t len
} }
while (ret == 0); while (ret == 0);
/* Return:
*
* ret > 0: The number of characters copied into the user buffer by
* telnetd_receive().
* ret <= 0: Loss of connection or error events reported by recv().
*/
return ret; return ret;
} }