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sixel: DECGRI (repeat) with a count of 0 should emit a single sixel

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Daniel Eklöf 2022-02-03 19:23:43 +01:00
parent 9150507209
commit 9e8d553a21
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2 changed files with 4 additions and 1 deletions
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3
CHANGELOG.md
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@ -112,7 +112,7 @@
characters (e.g. emojis).
* Rendering of CSD borders when `csd.border-width > 0` and desktop
scaling has been enabled.
* Failure to launch when `exec(3)’:ed with an empty argv.
* Failure to launch when `exec(3)`:ed with an empty argv.
* Pasting from the primary clipboard (mouse middle clicking) did not
reset the scrollback view to the bottom.
* Wrong mouse binding triggered when doing two mouse selections in
@ -122,6 +122,7 @@
options
* Sixel: large image resizes (triggered by e.g. large repeat counts in
`DECGRI`) are now truncated instead of ignored.
* Sixel: a repeat count of 0 in `DECGRI` now emits a single sixel.
### Security

2
sixel.c
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@ -1451,6 +1451,8 @@ decgri(struct terminal *term, uint8_t c)
unsigned count = term->sixel.param;
if (likely(count > 0))
sixel_add_many(term, c - 63, count);
else if (unlikely(count == 0))
sixel_add_many(term, c - 63, 1);
term->sixel.state = SIXEL_DECSIXEL;
break;
}