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drw_text: don't segfault when called with 0 width 

this patch just rejects *any* 0 width draws, which is surely an error by
the caller.

this also guards against cases where the width is too small for the
ellipsis to fit, so ellipsis_w will remain 0.
reported by Bakkeby <bakkeby@gmail.com>
This commit is contained in:
NRK 2022-03-28 01:02:52 +06:00 committed by Hiltjo Posthuma
parent e73651f12a
commit e4827b0c40
1 changed files with 1 additions and 1 deletions
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2
drw.c
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@ -267,7 +267,7 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
enum { nomatches_len = 64 };
static struct { long codepoint[nomatches_len]; unsigned int idx; } nomatches;
if (!drw || (render && !drw->scheme) || !text || !drw->fonts)
if (!drw || (render && (!drw->scheme || !w)) || !text || !drw->fonts)
return 0;
if (!render) {