Christian Weisgerber:
> Can you provide an example that triggers the problem?
> Or an explanation?
In the "while (cursor > input_buffer || input_char != EOF)" loop,
the "cursor" pointer sometimes refers to "input_buffer" and sometimes
to "output_buffer". It must refer to "input_buffer" at the start of
the loop, but the present code forgets to ensure this.
Sometimes this is made obvious to the user (example on OpenBSD 5.5):
$ perl -e 'print "\xc3\xa4"x1025' | recode utf8..latin1 | wc -c
libiconv.c internal error 56
recode: Internal recoding bug in step `UTF-8..ISO-8859-1'
1024
And sometimes input is silently discarded:
$ perl -e 'print "\xc3\xa4"x2000' | recode utf8..latin1 | wc -c
1488
$ # should be 2000 characters
