From: Paolo Bonzini <pbonz...@redhat.com>
Detected by GCC 7's -Wformat-truncation. snprintf writes at most
2 bytes here including the terminating NUL, so the result is
truncated. In addition, the newline at the end is pointless.
Fix the buffer size and the format string.
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
Reviewed-by: Markus Armbruster <arm...@redhat.com>
Reviewed-by: Laurent Vivier <lviv...@redhat.com>
Signed-off-by: Michael Tokarev <m...@tls.msk.ru>
---
hw/display/jazz_led.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/display/jazz_led.c b/hw/display/jazz_led.c
index b72fdb1717..3c97d56434 100644
--- a/hw/display/jazz_led.c
+++ b/hw/display/jazz_led.c
@@ -227,13 +227,13 @@ static void jazz_led_invalidate_display(void *opaque)
static void jazz_led_text_update(void *opaque, console_ch_t *chardata)
{
LedState *s = opaque;
- char buf[2];
+ char buf[3];
dpy_text_cursor(s->con, -1, -1);
qemu_console_resize(s->con, 2, 1);
/* TODO: draw the segments */
- snprintf(buf, 2, "%02hhx\n", s->segments);
+ snprintf(buf, 3, "%02hhx", s->segments);
console_write_ch(chardata++, ATTR2CHTYPE(buf[0], QEMU_COLOR_BLUE,
QEMU_COLOR_BLACK, 1));
console_write_ch(chardata++, ATTR2CHTYPE(buf[1], QEMU_COLOR_BLUE,
--
2.11.0
