Bug#317524: infinite loop when using charset_default=iso-8859-1

[Clint Adams]

> I can reproduce the problem. bogofilter 0.94.13-1 did not have this
> bug.
> 
> Like for the original submitter, it does not seem to depend on the db
> - fails with both existing, and newly created one (removed
> ~/.bogofilter) - and it also does not seem to depend on the message
> either:
> 
> --8<---
> $ echo foo | bogofilter -c /etc/bogofilter.cf~ -vvxdi
> probing "/home/elho/.bogofilter" and "wordlist.db" for
> environment...T_ENABLED
> open_lockfile: open(/home/elho/.bogofilter/lockfile-p) succeeded, fd
> #3
> db_env_create: 0x807318c
> DB_ENV->set_cachesize(4)
> DB_ENV->set_lg_max(1048576)
> DB_ENV->open(home=/home/elho/.bogofilter)
> db_version: Header version 4.3, library version 4.3
> [pid 8598] DB->open(db=0x8073f48, file=wordlist.db, database=NIL,
> type=1, flags=0x1000010=DB_RDONLY DB_AUTO_COMMIT , mode=0664) -> 0
> Successful return: 0
> DB->get_byteswapped: false
> DB->fd: 5
> DB->stat success, pagesize: 4096
> converting iso-8859-1           # (alternate) to UTF-8
> Conversion from 'iso-8859-1             # (alternate)' to 'UTF-8' is
> not supported.
> --8<---
> 
> At this point bogofilter sits in an infinite loop using up all
> available CPU time.
> 
> The only difference of /etc/bogofilter.cf~ to the default config is
> the charset_default=iso-8859-1 setting.

Does it work fine if you remove the trailing spaces and comment from the
config line?