Module Name: src
Committed By: jmcneill
Date: Tue Dec 20 21:35:16 UTC 2011
Modified Files:
src/sys/arch/usermode/dev: ttycons.c
Log Message:
check return value of write, make sure we send the whole buffer to stdout
To generate a diff of this commit:
cvs rdiff -u -r1.12 -r1.13 src/sys/arch/usermode/dev/ttycons.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/usermode/dev/ttycons.c
diff -u src/sys/arch/usermode/dev/ttycons.c:1.12 src/sys/arch/usermode/dev/ttycons.c:1.13
--- src/sys/arch/usermode/dev/ttycons.c:1.12 Thu Dec 15 01:04:15 2011
+++ src/sys/arch/usermode/dev/ttycons.c Tue Dec 20 21:35:16 2011
@@ -1,4 +1,4 @@
-/* $NetBSD: ttycons.c,v 1.12 2011/12/15 01:04:15 jmcneill Exp $ */
+/* $NetBSD: ttycons.c,v 1.13 2011/12/20 21:35:16 jmcneill Exp $ */
/*-
* Copyright (c) 2007 Jared D. McNeill <jmcne...@invisible.ca>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ttycons.c,v 1.12 2011/12/15 01:04:15 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ttycons.c,v 1.13 2011/12/20 21:35:16 jmcneill Exp $");
#include <sys/param.h>
#include <sys/conf.h>
@@ -302,7 +302,8 @@ static void
ttycons_start(struct tty *t)
{
u_char buf[80+1];
- int s, len; //, i;
+ u_char *p = buf;
+ int s, len, brem;
s = spltty();
if (t->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) {
@@ -312,8 +313,15 @@ ttycons_start(struct tty *t)
t->t_state |= TS_BUSY;
splx(s);
- len = q_to_b(&t->t_outq, buf, sizeof(buf) - 1);
- thunk_write(1, buf, len);
+ brem = q_to_b(&t->t_outq, buf, sizeof(buf) - 1);
+
+ while (brem > 0) {
+ len = thunk_write(1, p, brem);
+ if (len > 0) {
+ p += len;
+ brem -= len;
+ }
+ }
s = spltty();
t->t_state &= ~TS_BUSY;
