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Bug #99174. Limit the length of requests to XDrawString to 32K avoid causing X protocol errors. r=alecf, sr=brendan

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blizzard%redhat.com 2001-11-06 23:05:39 +00:00
parent d98959d0cd
commit f061115c03
1 changed files with 7 additions and 2 deletions
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9
gfx/src/gtk/nsRenderingContextGTK.cpp
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@ -2002,15 +2002,20 @@ nsRenderingContextGTK::my_gdk_draw_text (GdkDrawable *drawable,
// gdk does this... we don't need it..
// XSetFont(drawable_private->xdisplay, gc_private->xgc, xfont->fid);
// We clamp the sizes down to 32768 which is the maximum width of
// a window. Even if a font was 1 pixel high and started at the
// left, the maximum size of a draw request could only be 32k.
if ((xfont->min_byte1 == 0) && (xfont->max_byte1 == 0))
{
XDrawString (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, x, y, text, text_length);
gc_private->xgc, x, y, text, MIN(text_length, 32768));
}
else
{
XDrawString16 (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, x, y, (XChar2b *) text, text_length / 2);
gc_private->xgc, x, y, (XChar2b *) text,
MIN((text_length / 2), 32768));
}
}
else if (font->type == GDK_FONT_FONTSET)