bug#2370: 23.0.90; decode-coding-region make emacs crash

[Kenichi Handa]

In article <87zlgjwa8b.fsf@cyd.mit.edu>, Chong Yidong <cyd@stupidchicken.com> 
writes:

> Hi Handa-san,
> Please take a look at this bug:

> http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=2370

> The crash occurs because of memory corruption due to overwriting the
> carrover buffer at line 6809 of coding.c.  For the sample provided by
> the OP, (coding->src_bytes - coding->consumed) == 99.  This looks like a
> bug in decode_coding_iso_2022.

I found two bugs related to this problem, and just installed
a fix for one of them.  Now the above specific problem
should be fixed.  I'll keep on workning to fix the other bug
to make the decoding more robust.

---
Kenichi Handa
handa@m17n.org