>Number:         31347
>Category:       bin
>Synopsis:       netstat err message is ambiguous about cause
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Sep 19 07:25:00 +0000 2005
>Originator:     Geoff C. Wing
>Release:        NetBSD 3.99.9
>Organization:
>Environment:
System: NetBSD g.primenet.com.au 3.99.9 NetBSD 3.99.9 (G) #0: Mon Sep 19 16:59:29 EST 2005 gcw@g.primenet.com.au:/usr/netbsd/src/sys/arch/i386/compile/G i386
Architecture: i386
Machine: i386
>Description:
	netstat can give an ambiguous error message when it can't find
	certain information.  e.g. on my machine without INET6 I'll get
	a vague:
		netstat: sysctlnametomib: No such file or directory
	which doesn't help me determine the cause.  The patch below will
	expand it slightly (even if I'd rather not have the error in the
	first place) to:
		netstat: sysctlnametomib: net.inet6.tcp6.pcblist: No such file or directory
	where I can immediately say, "ah, that's because my kernal doesn't
	have INET6 option"

>How-To-Repeat:
	Obvious, yes?
>Fix:
--- usr.bin/netstat/bpf.c.org	2005-09-05 14:56:30.000000000 +1000
+++ usr.bin/netstat/bpf.c	2005-09-19 17:14:19.000000000 +1000
@@ -91,7 +91,7 @@
 
 		sz = CTL_MAXNAME;
 		if (sysctlnametomib("net.bpf.peers", &name[0], &sz) == -1)
-			err(1, "sysctlnametomib");
+			err(1, "sysctlnametomib: net.bpf.peers");
 		namelen = sz;
 
 		name[namelen++] = sizeof(*dpe);
--- usr.bin/netstat/inet.c.org	2005-08-15 11:35:11.000000000 +1000
+++ usr.bin/netstat/inet.c	2005-09-19 17:13:37.000000000 +1000
@@ -199,7 +199,7 @@
 
 		/* get dynamic pcblist node */
 		if (sysctlnametomib(mibname, mib, &namelen) == -1)
-			err(1, "sysctlnametomib");
+			err(1, "sysctlnametomib: %s", mibname);
 
 		if (sysctl(mib, sizeof(mib) / sizeof(*mib), NULL, &size,
 			   NULL, 0) == -1)
--- usr.bin/netstat/inet6.c.org	2005-09-02 13:34:05.000000000 +1000
+++ usr.bin/netstat/inet6.c	2005-09-19 17:13:40.000000000 +1000
@@ -256,7 +256,7 @@
 
 		/* get dynamic pcblist node */
 		if (sysctlnametomib(mibname, mib, &namelen) == -1)
-			err(1, "sysctlnametomib");
+			err(1, "sysctlnametomib: %s", mibname);
 
 		if (sysctl(mib, sizeof(mib) / sizeof(*mib), NULL, &size,
 		    NULL, 0) == -1)
--- usr.bin/netstat/unix.c.org	2005-09-05 14:56:30.000000000 +1000
+++ usr.bin/netstat/unix.c	2005-09-19 17:14:30.000000000 +1000
@@ -159,7 +159,7 @@
 
 		if (sysctlnametomib(mibname, mib,
 				    &namelen) == -1)
-			err(1, "sysctlnametomib");
+			err(1, "sysctlnametomib: %s", mibname);
 
 		if (sysctl(mib, sizeof(mib) / sizeof(*mib), NULL, &size,
 			   NULL, 0) == -1)