diff options
| author | Russ Cox <rsc@swtch.com> | 2014-12-01 20:15:52 -0500 |
|---|---|---|
| committer | Russ Cox <rsc@swtch.com> | 2014-12-02 01:18:40 +0000 |
| commit | fff818fe878ca5edfbac85b15e77ada2acb8ea0f (patch) | |
| tree | 1c528d7e620547fa26704577af3330188154ba46 /src/libframe | |
| parent | d3a47e14e5ebf7a4d8ca8c9a3dfe748b93d3663a (diff) | |
| download | plan9port-fff818fe878ca5edfbac85b15e77ada2acb8ea0f.tar.gz plan9port-fff818fe878ca5edfbac85b15e77ada2acb8ea0f.tar.bz2 plan9port-fff818fe878ca5edfbac85b15e77ada2acb8ea0f.zip | |
libdraw, libframe, acme: fix, guard against inverted range in textsetselect
Credit to Roi Martin <jroi.martin@gmail.com> for noticing that
libdraw was being passed a negative string length and for finding the
sequence of keystrokes that make acme do it reproducibly.
Change-Id: If3f3d04a25c506175f740d3e887d5d83b5cd1bfe
Reviewed-on: https://plan9port-review.googlesource.com/1092
Reviewed-by: Russ Cox <rsc@swtch.com>
Diffstat (limited to 'src/libframe')
| -rw-r--r-- | src/libframe/frdraw.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libframe/frdraw.c b/src/libframe/frdraw.c index 2a3a95e0..05a45fe2 100644 --- a/src/libframe/frdraw.c +++ b/src/libframe/frdraw.c @@ -62,6 +62,9 @@ frdrawsel0(Frame *f, Point pt, ulong p0, ulong p1, Image *back, Image *text) Point qt; uint p; char *ptr; + + if(p0 > p1) + sysfatal("libframe: frdrawsel0 p0=%lud > p1=%lud", p0, p1); p = 0; b = f->box; |