From 39b8b958208a725f51def846edd711126495172f Mon Sep 17 00:00:00 2001
From: Chaskiel M Grundman <cg2v@andrew.cmu.edu>
Date: Tue, 17 Jan 2006 16:08:20 +0000
Subject: [PATCH] STABLE14-tiger-sysctl-20060117

FIXES 25327

implementation of sysctl for tiger


(cherry picked from commit ebf35c3f884b40616700b4b0b2462731cda290ae)
---
 src/afs/DARWIN/osi_vfsops.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/src/afs/DARWIN/osi_vfsops.c b/src/afs/DARWIN/osi_vfsops.c
index d6288b6dec..a9bc7e3f7f 100644
--- a/src/afs/DARWIN/osi_vfsops.c
+++ b/src/afs/DARWIN/osi_vfsops.c
@@ -503,8 +503,23 @@ int afs_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp,
 	    switch (name[2]) {
 	    case AFS_SC_DARWIN_ALL_REALMODES:
 #ifdef AFS_DARWIN80_ENV
-               newlen;
-               /* XXX complicated */
+		if (oldp != USER_ADDR_NULL && oldlenp == NULL)
+		    return (EFAULT);
+		if (oldp && *oldlenp < sizeof(u_int32_t))
+		    return (ENOMEM);
+		if (newp && newlen != sizeof(u_int32_t))
+		    return (EINVAL);
+		*oldlenp = sizeof(u_int32_t);
+		if (oldp) {
+		    if ((error = copyout(&afs_darwin_realmodes,
+					 oldp, sizeof(u_int32_t)))) {
+			return error;
+		    }
+		}
+		if (newp)
+		    return copyin(newp, &afs_darwin_realmodes,
+				  sizeof(u_int32_t));
+		return 0;
 #else
 	        return sysctl_int(oldp, oldlenp, newp, newlen,
 				  &afs_darwin_realmodes);