Subject: bin/20817: inetd doesn't accept tcp,rcvbuf=16384 et al.
To: None <gnats-bugs@gnats.netbsd.org>
From: None <itohy@netbsd.org>
List: netbsd-bugs
Date: 03/20/2003 19:00:05
>Number:         20817
>Category:       bin
>Synopsis:       inetd doesn't accept tcp,rcvbuf=16384 et al.
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Mar 20 02:01:01 PST 2003
>Closed-Date:
>Last-Modified:
>Originator:     ITOH Yasufumi
>Release:        NetBSD 1.6L
>Organization:
>Environment:
System: NetBSD pino.my.domain 1.6L NetBSD 1.6L (PINO) #352: Wed Jan 15 01:30:30 JST 2003 itohy@pino.my.domain:/w/src/sys/arch/i386/compile/PINO i386
Architecture: i386
Machine: i386

>Description:
The inetd(8) manual page mentions TCP buffer size options,
rcvbuf and sndbuf.

	inetd(8) reads:
	> The socket buffer sizes are specified by appending their
	> values to the protocol specification as follows:
	>
	>	tcp,rcvbuf=16384
	>	tcp,sndbuf=64k
	>	tcp,rcvbuf=64k,sndbuf=1m

However, the first form (no suffix) is not accepted.

>How-To-Repeat:
Use the following line (for example) in /etc/inetd.conf

	discard	stream	tcp,rcvbuf=16384	nowait	nobody	internal

and see the following error mesage in /var/log/messages.

	inetd[244]: discard: malformed buffer size option `16384'

>Fix:
	Here's suggested fix.

--- inetd.c.orig	Wed Feb 19 19:24:56 2003
+++ inetd.c	Thu Mar 20 13:01:35 2003
@@ -1415,12 +1415,16 @@
 		MALFORMED(arg); \
 	val = strtol((arg), &cp0, 10); \
 	if (cp0 != NULL) { \
-		if (cp0[1] != '\0') \
+		if (cp0[0] != '\0') \
+			; \
+		else if (cp0[1] != '\0') \
 			MALFORMED((arg)); \
-		if (cp0[0] == 'k') \
+		else if (cp0[0] == 'k') \
 			val *= 1024; \
-		if (cp0[0] == 'm') \
+		else if (cp0[0] == 'm') \
 			val *= 1024 * 1024; \
+		else \
+			MALFORMED((arg)); \
 	} \
 	if (val < 1) { \
 		syslog(LOG_ERR, "%s: invalid buffer size `%s'", \

>Release-Note:
>Audit-Trail:
>Unformatted: