* implement FEAT and OPTS from RFC2389. FEAT returns SIZE and MDTM.
OPTS only works on NOOP (as a test).
* extend format of /etc/ftpchroot similar to /etc/ftpusers; each entry
can take an optional trailing `yes' or `no' which indicates if
chroot should be done (defaults to `yes').
based on patches from Ty Sarna <tsarna@endicor.com> in [bin/4769]
cleanups/bugs:
* reorder and reformat entries in yacc parser to match cmdtab[].
add a blank line between each rule.
* add short hasopts and char *options to struct tab, to support OPTS.
* deprecate upper(); use strcasecmp() instead of strcmp()
* remove unnecessary for (;;) { } in yylex();
* replace copy() and sgetsave() with xstrdup()
* fix a couple of `hasyyerrored = 1' that were accidently removed.
problem; move `hasyyerrored' state flag out of yylex() so that
check_{login,modify} can also set it.
* check result of check_login for PORT command
* set initial timeout before the "setjmp(); for(;;) yyparse()",
otherwise an invalid command after login incorrectly sets the timeout
to 5 minutes (rather than what was set in ftpd.conf)
* replace (char *)0 with NULL
* move yyerror() from ftpd.c to ftpcmd.y
* remove need for -Dunix, by using the version string from ftpd.c
(instead of `BSD-199506')
* move all extern-ed vars into extern.h
fixes long standing ftpd bug where two replies would be returned
to the client if a command was flagged as accepting `ARGS' but the
parser didn't know how to cope. obvious symptom of this would be
ftp client is always one error message `behind' the server.
* consistently refer to the RFC as `RFC 959' not `RFC959' or `RFC-959',
and replace refs to RFC 765 with RFC 959.
* change order of commands in cmdtab[] to: RFC 959, BSD extras, and obsolete.
* whitespace police, deprecate register, replace malloc/strcpy with strdup
- ensure hostname from gethostname() is nul-terminated in all cases
- minor KNF
- use MAXHOSTNAMELEN over various other values/defines
- be safe will buffers that hold hostnames
the user at the end of a transfer.
this generates a file in /tmp, so anonymous requires a
writable ~ftp/tmp, which you may not want to do (because it may
allow people to unwanted upload files).
XXX: a better method of storing the stderr output would be nice, but
is a lot more effort to implement. this feature can at least be
used temporarily whilst debugging why an ftp conversion doesn't
work.
want to timeout using this value that are executed before the conf file
is parsed will work. fixes ``stale ftpd stuck in connection phase''
* in PASV mode, wrap accept() in an alarm timeout. fixes ``stale ftpd because
of client disappearing in pasv mode (usually browsers)''
* main() doesn't need envp argument
* display current setting of checkportcmd in STAT
* ensure that curclass.checkportcmd is initialised to 0
* document default setting of checkportcmd in ftpd(8)
* cleanup code a bit, putting code for "checkportcmd" in alphabetical order
