[src/trunk]: src/sys/kern Increment the source buffer when we overflow so tha...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/c21328a873d1
branches:  trunk
changeset: 771482:c21328a873d1
user:      christos <christos%NetBSD.org@localhost>
date:      Tue Nov 22 21:25:04 2011 +0000

description:
Increment the source buffer when we overflow so that we don't get stuck in
an infinite loop.

diffstat:

 sys/kern/subr_prf.c |  6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diffs (27 lines):

diff -r de0707be7194 -r c21328a873d1 sys/kern/subr_prf.c
--- a/sys/kern/subr_prf.c       Tue Nov 22 21:24:51 2011 +0000
+++ b/sys/kern/subr_prf.c       Tue Nov 22 21:25:04 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: subr_prf.c,v 1.145 2011/11/21 01:44:26 christos Exp $  */
+/*     $NetBSD: subr_prf.c,v 1.146 2011/11/22 21:25:04 christos Exp $  */
 
 /*-
  * Copyright (c) 1986, 1988, 1991, 1993
@@ -37,7 +37,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: subr_prf.c,v 1.145 2011/11/21 01:44:26 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: subr_prf.c,v 1.146 2011/11/22 21:25:04 christos Exp $");
 
 #include "opt_ddb.h"
 #include "opt_ipkdb.h"
@@ -1144,6 +1144,8 @@
        if (oflags == TOBUFONLY) {                                      \
                if ((vp == NULL) || (sbuf < tailp))                     \
                        *sbuf++ = (C);                                  \
+               else                                                    \
+                       sbuf++;                                         \
        } else {                                                        \
                putchar((C), oflags, vp);                               \
        }                                                               \