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Crop VNC update requests to avoid segfaults, by Thomas Tuttle.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2741 c046a42c-6fe2-441c-8c8c-71466251a162
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ths 2007-04-29 01:53:20 +00:00
parent 2abec30bcf
commit cf2d385c43
1 changed files with 9 additions and 0 deletions
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9
vnc.c
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@ -852,6 +852,15 @@ static void framebuffer_update_request(VncState *vs, int incremental,
int x_position, int y_position,
int w, int h)
{
if (x_position > vs->ds->width)
x_position = vs->ds->width;
if (y_position > vs->ds->height)
y_position = vs->ds->height;
if (x_position + w >= vs->ds->width)
w = vs->ds->width - x_position;
if (y_position + h >= vs->ds->height)
h = vs->ds->height - y_position;
int i;
vs->need_update = 1;
if (!incremental) {