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authordg <dg@FreeBSD.org>1995-08-06 22:00:17 +0000
committerdg <dg@FreeBSD.org>1995-08-06 22:00:17 +0000
commitf0b49bdd9e4c38d2f87ac4bff85ea99d0377c3e1 (patch)
treee63f9c98dc0674dcb513a67f18e967202cc034d0 /sys/kern/subr_prf.c
parent8bdb8276ba8ae163b30582387439aaddcb2f213a (diff)
downloadFreeBSD-src-f0b49bdd9e4c38d2f87ac4bff85ea99d0377c3e1.zip
FreeBSD-src-f0b49bdd9e4c38d2f87ac4bff85ea99d0377c3e1.tar.gz
Restore check for msg_bufx being negative. Changed if() expression to be
in Lite2 style.
Diffstat (limited to 'sys/kern/subr_prf.c')
-rw-r--r--sys/kern/subr_prf.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/sys/kern/subr_prf.c b/sys/kern/subr_prf.c
index e8813bc..0c0f886 100644
--- a/sys/kern/subr_prf.c
+++ b/sys/kern/subr_prf.c
@@ -36,7 +36,7 @@
* SUCH DAMAGE.
*
* @(#)subr_prf.c 8.3 (Berkeley) 1/21/94
- * $Id: subr_prf.c,v 1.13 1995/04/08 21:32:11 joerg Exp $
+ * $Id: subr_prf.c,v 1.14 1995/06/14 07:55:07 bde Exp $
*/
#include <sys/param.h>
@@ -509,11 +509,11 @@ putchar(c, flags, tp)
mbp->msg_magic = MSG_MAGIC;
}
mbp->msg_bufc[mbp->msg_bufx++] = c;
- if (mbp->msg_bufx >= MSG_BSIZE)
+ if (mbp->msg_bufx < 0 || mbp->msg_bufx >= MSG_BSIZE)
mbp->msg_bufx = 0;
+ /* If the buffer is full, keep the most recent data. */
if (mbp->msg_bufr == mbp->msg_bufx) {
- mbp->msg_bufr++;
- if (mbp->msg_bufr >= MSG_BSIZE)
+ if (++mbp->msg_bufr >= MSG_BSIZE)
mbp->msg_bufr = 0;
}
}
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