connection destination, hoping this to help ftpd's behavior with
scoped IPv6 addresses.
I'm not sure if it is the right way, but it is the best way available to us.
LPRT or EPRT command gives no information about which interface (or scope)
to be used for new data connection.
ftp(1): On data connection establishment, warn if scoped address is used.
If peer (ftp daemon) does not handle scoped address, data connection
may not work right.
This seems to be sort of protocol spec hole, not implementation issue.
- just display the hostname:port of the proxy url, rather than the full url.
this prevents someone `shoulder surfing' a proxy username/password
in $http_proxy. [suggested by perry]
- compact verbose notes for http fetchs; now displays
(via host:port, with authorization, with proxy authorization)
with each component being optional.
(and a couple introduced with the ipv6 mods...)
- don't override host with the canonical name; this prevented fetches from
http/1.1 virtual hosts from working if the virtual host was a CNAME.
[noted by bernd]
- call freeaddrinfo() if res was built with getaddrinfo()
the an empty directory (e.g, between `some' and `path' in
`ftp://host/some//path'), then execute `CWD ' (without a path).
This command will probably fail on rfc 959 compliant servers, so
issue a warning in this case and bail. [noted by cgd].
(i wonder if the people who wrote rfc 1738 actually realised that this
requirement appears to contravene the spec for `cwd' in rfc 959 ?)
* replace isurl() with isipv6addr(), and use appropriately. fixes
auto-login with `classic ftp URLs' (e.g, `ftp somehost:')
* cleanup and rework some of the ipv6 stuff in parse_url()
* prevent potential coredump in fetch_ftp() when parsing `;type=X'
* KNF a few lines
* fix a couple of comments
* cleanup the man page a bit
this is mainly for (hypothetical) ftp server which disconnect clients
that use EPSV/EPRT. I've never seen any ftp server like this, but
epsv4 command may be of use when such an ftp server is found.
xfer rate stuff, but i never completed the changes that didn't need it
set).
fixes a coredump noticed on current-users@ by Chan Yiu Wah <c5666305@hkstar.com>
features:
---------
* transfer rate throttling with the new `rate' command. syntax:
rate direction [max [incr]]
where direction is `all', `get' or `put'.
if max is not supplied, the current settings are displayed.
if max is supplied, then transfers in the given direction will
be throttled to this value.
if incr is supplied, the increment for the `on-the-fly' scaling
will be set to that, otherwise `1024' is used.
currently implemented for binary get, binary put, and url fetches.
not yet supported for ascii get or put, or local file copies.
* on-the-fly scaling of the throttle based on signals:
- SIGUSR1 raises the throttle rate by the increment for that direction
- SIGUSR2 lowers the throttle rate by the increment for that direction
* -T dir,max[,incr] option to set rate from the command line
* `k', `m', `g' suffix support for bytecounts in the `hash', `rate',
`rcvbuf' and `sndbuf' commands)
bug fixes and code mods:
------------------------
* fix up ftp_login() so that ruserpass() is always called, even for
command-line url fetches.
* implement strsuftoi(), which parses a given number into a int with
suffix support. replaces getsockbufsize()
* implement parserate(), which does the argv parsing for -T and rate
* save and restore errno in signal handlers (may not be necessary, but
it doesn't hurt)
notes:
------
the rate command has had reasonable testing, but I'd like feedback
if it doesn't do the right thing, especially from people on slower
(i.e, modem) links.
I haven't tested the rate throttle against a http server which does
`transfer-encoding: chunked' because I couldn't find a server to
test against.
transfer stats are printed when verbose is enabled even if ftp is compiled
with -DNO_PROGRESS/-DSMALL. this adds back some feedback that existed
in traditional ftp that was lost when i added the progress meter. (noticed
when ftp-ing from the -DSMALL version of ftp that's on the 1.4 boot floppy)
NO_PROGRESS. -DSMALL still implies all of those. progress meter support
isn't necessary for the smallest possible ftp client, but it adds very
little space and makes users' lives much better. Therefore, it should
be enabled for installation media if at all possible.
the latter only seemed to work for TIS Gauntlet and not TIS fwtk.
thanks to simonb@netbsd.org for testing this. fixes [bin/5556].
* if EOF (e.g, ^D) is entered at a username/password/account prompt which
happens to use fgets(), exit the login rather than treating EOF as CR.
* don't use the comma operator where separate statements are valid
* always use snprintf to copy stuff into malloced buffers, just in case
typos creep in and mean that the buffer ends up being overflowed
elements, which are used for the initial authentication attempt (if
requested by the server). in the case of $http_proxy, use the values
for proxy authentication.
.netrc entry exists for the host with a valid user. noted by
Frederick Bruckman <fb@enteract.com> in [bin/7477]
* fix a minor memory leak associated with calling ruserpass() with
an empty user, password, or account.
- the path is split on `/', and each directory is CWD-ed into separately.
(from [standards/7484] by Alan Barrett <apb@iafrica.com>)
- support a trailing `;type=X' suffix, where X is a,i, or d. (d isn't
implemented, but it is recognised)
- the only non-compliant behaviour is that empty directories sections
(e.g `//') aren't run as `CWD ' - as a lot of ftpds don't like that.
Instead, treat this as a no-op.
* don't support globbing for ftp urls, since that's technically not
RFC compliant.
* fix a couple of man-page nits
* $FTPMODE is the documented way in ftp(1) to force passive, active,
gate-ftp, or autodetect.
* AFAIK, we haven't shipped any previous release with pftp in /usr/bin
* no link was made for gate-ftp (and i don't think that makes sense in
/usr/bin either)
* even though the link isn't made, the support for pftp, gate-ftp, and
the `-p' flag should remain since people may depend on having their
own link (e.g, ~/bin/pftp -> /usr/bin/ftp) or aliases which use
these things. it doesn't hurt to leave argv[0] checking in ftp's main().
itojun