bin/55980: [patch] rmuser does not remove IPC mechanisms owned by the user

[Chris S.J.Peron]

>Number:         55980
>Category:       bin
>Synopsis:       [patch] rmuser does not remove IPC mechanisms owned by the user
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Aug 25 18:20:09 PDT 2003
>Closed-Date:
>Last-Modified:
>Originator:     Chris S.J. Peron
>Release:        FreeBSD 5.1-CURRENT i386
>Organization:
>Environment:
System: FreeBSD movl 5.1-CURRENT FreeBSD 5.1-CURRENT #14: Mon Aug 25 17:22:40 CDT 2003   modulus at movl:/usr/src/sys/i386/compile/RAID0  i386 

	
>Description:

rmuser cleans up processes and files owned by users, but does not
touch any IPC mechanisms owned by the user.

	
>How-To-Repeat:
N/A
	
>Fix:

--- /usr/sbin/rmuser	Tue Jun 24 22:51:27 2003
+++ /usr/sbin/rmuser2	Thu Aug 14 16:50:08 2003
@@ -145,6 +145,22 @@
 	verbose && echo '.'
 }
 
+# rm_ipc
+#	Removes shared memory segments, semaphores and message queues
+#	owned by user $_user
+#
+rm_ipc() {
+	ipcs -s | awk -v u=$1 '/^s/ { if (u == $5) { print $2 } }' | \
+	xargs -J % -n 1 ipcrm -s %
+
+	ipcs -m | awk -v u=$1 '/^m/ { if (u == $5) { print $2 } }' | \
+	xargs -J % -n 1 ipcrm -m %
+
+	ipcs -q | awk -v u=$1 '/^q/ { if (u == $5) { print $2 } }' | \
+	xargs -J % -n 1 ipcrm -q %
+	! verbose && echo -n " ipc"
+}
+
 # rm_user login
 #	Remove user $login from the system. This subroutine makes use
 #	of the pw(8) command to remove a user from the system. The pw(8)
@@ -338,6 +354,7 @@
 	! verbose && echo -n "Removing user ($_user):"
 	rm_crontab $_user
 	rm_at_jobs $_user
+	rm_ipc $_user
 	kill_procs $_user
 	rm_files $_user
 	rm_mail $_user
>Release-Note:
>Audit-Trail:
>Unformatted: