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Date:      Sat, 9 Jan 2010 23:02:49 +0000 (UTC)
From:      Brooks Davis <brooks@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-projects@freebsd.org
Subject:   svn commit: r201944 - in projects/ngroups/sys: fs/procfs kern sys
Message-ID:  <201001092302.o09N2nEq041780@svn.freebsd.org>

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Author: brooks
Date: Sat Jan  9 23:02:49 2010
New Revision: 201944
URL: http://svn.freebsd.org/changeset/base/201944

Log:
  Improve a few comments.

Modified:
  projects/ngroups/sys/fs/procfs/procfs_status.c
  projects/ngroups/sys/kern/subr_param.c
  projects/ngroups/sys/sys/socket.h

Modified: projects/ngroups/sys/fs/procfs/procfs_status.c
==============================================================================
--- projects/ngroups/sys/fs/procfs/procfs_status.c	Sat Jan  9 23:02:14 2010	(r201943)
+++ projects/ngroups/sys/fs/procfs/procfs_status.c	Sat Jan  9 23:02:49 2010	(r201944)
@@ -82,7 +82,7 @@ procfs_doprocstatus(PFS_FILL_ARGS)
 	sid = sess->s_leader ? sess->s_leader->p_pid : 0;
 
 /* comm pid ppid pgid sid tty ctty,sldr start ut st wmsg
-				euid ruid rgid,egid,groups[1 ...]
+				euid ruid rgid,egid,groups[1 .. ngroups]
 */
 
 	pc = p->p_comm;

Modified: projects/ngroups/sys/kern/subr_param.c
==============================================================================
--- projects/ngroups/sys/kern/subr_param.c	Sat Jan  9 23:02:14 2010	(r201943)
+++ projects/ngroups/sys/kern/subr_param.c	Sat Jan  9 23:02:49 2010	(r201944)
@@ -231,8 +231,8 @@ init_param1(void)
 	TUNABLE_ULONG_FETCH("kern.sgrowsiz", &sgrowsiz);
 
 	/*
-	 * Let the user set ngroups_max, but don't let it go below
-	 * NGROUPS_MAX which would violate POSIX.1-2008.
+	 * Let the administrator set {NGROUPS_MAX}, but disallow values
+	 * less than NGROUPS_MAX which would violate POSIX.1-2008.
 	 */
 	ngroups_max = NGROUPS_MAX;
 	TUNABLE_INT_FETCH("kern.ngroups", &ngroups_max);

Modified: projects/ngroups/sys/sys/socket.h
==============================================================================
--- projects/ngroups/sys/sys/socket.h	Sat Jan  9 23:02:14 2010	(r201943)
+++ projects/ngroups/sys/sys/socket.h	Sat Jan  9 23:02:49 2010	(r201944)
@@ -462,7 +462,8 @@ struct cmsghdr {
 #if __BSD_VISIBLE
 /*
  * While we may have more groups than this, the cmsgcred struct must
- * be able to fit in an mbuf.
+ * be able to fit in an mbuf and we have historically supported a
+ * maximum of 16 groups.
 */
 #define CMGROUP_MAX 16
 



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