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History log of /src/usr.bin/ftp/main.c
RevisionDateAuthorComments
 1.135  29-Nov-2024  lukem ftp: order getopt Upper before lower

Consistently order options in getopt and the switch
with the upper case option before the lower case option.
This makes it easier to cross-reference with -? and ftp(1).
No functional change.
 1.134  29-Nov-2024  lukem ftp: help improvements

Document -? as a separate mode.
Document -H HEADER in the usage.
Clarify units for -b and -x.
Consistent argument names between ftp -? and ftp(1).
 1.133  30-Sep-2024  christos fix markup (h -> H), explain about multiple headers, fix usage (from RVP)
 1.132  25-Sep-2024  christos PR/58581: Sunil Nimmagadda: Add flag to allow specifying extra http header
fields.
 1.131  25-Sep-2024  christos pass some lint.
 1.130  18-Feb-2024  christos branches: 1.130.2;
Add -b <buflen> to specify the buffer size.
 1.129  25-Feb-2023  mlelstv Add option sslnoverify to control validation of SSL certificates.
Add netrc processing to fetch-mode (URL on command line) to enable options and autologin
via netrc.
Fix SSL cleanup in some error paths.

Certificate validation is now enabled by default. Set FTPSSLNOVERIFY=1 in environment
or configure a corresponding init macro via netrc to not validate certs (required if
you haven't installed a required CA certificate for OpenSSL).

Discussed with lukem@ on icb.
 1.128  09-Oct-2021  lukem branches: 1.128.2;
ftp: fix -? more portably

Start the optstring with ":" (which implicitly disables opterr),
and handle '?' with optopt=='?' separately to ':'.
Fixes -? display of full usage on other platforms.
 1.127  18-Jul-2020  lukem ftp: add -? for help. improve synopsis

Add -? to display usage synopsis and help to stdout.
This allows for "ftp -? | less", which is more user friendly.
Errors still show usage to stderr.
Consistency improvements in some usage text.
 1.126  04-Feb-2019  mrg branches: 1.126.2;
- add justquit() that always exits. use it to avoid unreachable code.
 1.125  04-Mar-2018  dholland branches: 1.125.4;
Don't use the local username as the default anonftp password.

once upon a time doing this was part of the social glue that held the
community together, but that was a long time ago, and now it's just an
information leak.

proposed on tech-userlevel in 2008, then apparently forgotten :-|
 1.124  25-Nov-2017  christos Make outfile always allocated, free it to set it to NULL, and don't move it
around.
 1.123  23-Apr-2015  lukem branches: 1.123.8;
Add -x xferbufsize to set xferbuf size.

Implement -x xferbufsize set the socket send and receive buffer size,
as per 'xferbuf' in interactive mode.

Patch from Nicholas Mills (via private mail), with minor adjustment by me.
 1.122  22-Dec-2012  christos branches: 1.122.8;
document https support, mentioning certificates are not validated, and obey
https_proxy.
 1.121  21-Dec-2012  christos PR/47276: Add https support
 1.120  10-Dec-2011  lukem branches: 1.120.2; 1.120.6;
Move determination of socket buffer sizes from startup to the first
time a socket is used, as the previous logic assumed AF_INET sockets
were available (which they may not be in an IPv6-only system).
Per discussion with Maxim Konovalov and the FreeBSD problem 162661.
 1.119  16-Sep-2011  joerg branches: 1.119.2;
Use __dead
 1.118  14-Aug-2011  christos fix gcc-4.5 warnings
 1.117  13-Jul-2009  roy Rename internal getline() function to get_line() so it does
conflict with the soon to be added getline(3) libc function.
 1.116  24-Apr-2009  lukem Revert incorrect change made as part of the WARNS=4.
Fixes "ftp host [port]" on the CLI.
Noted by Geoff Wing.
 1.115  12-Apr-2009  lukem Fix numerous WARNS=4 issues (-Wcast-qual -Wsign-compare).
 1.114  12-Apr-2009  lukem fix -Wshadow issues
 1.113  09-Sep-2008  gmcgarry branches: 1.113.6;
getline() returns int. Don't cast to unsigned value and compare with -1.
 1.112  13-Aug-2008  lukem Use AF_INET instead of AF_UNSPEC as the default family if !defined(INET6).
Avoids problem reported by Matthias Scheler <tron@NetBSD.org>.
 1.111  21-Jul-2008  lukem Add TNF to __COPYRIGHT
 1.110  21-Jul-2008  lukem Remove the \n and tabs from the __COPYRIGHT() strings.
Tweak to use a consistent format.
 1.109  10-May-2008  skd Add epsv6 and epsv to disable extended passive mode for ipv6 or both ipv4 and ipv6 respectively. This hack is due to our friends a Juniper Networks who break
epsv in ipv6. Should be fixed in ScreenOS 6.2.X.
 1.108  05-May-2008  lukem branches: 1.108.2;
Only attempt to el_parse() a command unknown by the default parser
if editing is enabled.
Fixes PR bin/38589
 1.107  28-Apr-2008  martin Remove clause 3 and 4 from TNF licenses
 1.106  02-Dec-2007  wiz branches: 1.106.6;
Sort options.
 1.105  22-May-2007  lukem branches: 1.105.4;
* main: call tzset() to ensure TZ is setup for other <time.h> functions.
* remotemodtime(): use strptime() to parse the reply.
* fetch_url(): ensure struct tm is zeroed before calling strptime().
 1.104  17-Apr-2007  lukem * Implement -s srcaddr; uses srcaddr as the local IP address for all
connections.
Based on code in the version of ftp that FreeBSD had before they
replaced it with lukemftp.
* Move error message handling into ftp_connect() rather than in the
caller, so that more specific error reporting can occur.
* Improve consistency of various warning and error messages.
 1.103  12-Apr-2007  lukem Fix using /usr/bin/ftp as a slave process on the end of a pipe by calling
fflush(stdout) before each command.
Taken from FreeBSD's pre-lukemftp version of ftp.
 1.102  13-Dec-2006  christos gcc4 does not care about &foo; use volatile instead. From Anon Ymous
 1.101  31-Jan-2006  christos rename debug to ftp_debug. grr libssh.
 1.100  31-Jan-2006  christos Rename xfoo() to ftp_foo() to avoid collisions with libssh. Don't ask.
 1.99  29-Jun-2005  christos Add NO_USAGE and NO_DEBUG so that we can fit in the floppies again.
 1.98  10-Jun-2005  jmc Need to #ifdef around declaration of ch with NO_EDITCOMPLETE so this compiles
on rescue/miniroot's
 1.97  10-Jun-2005  lukem Implement:
int getline(FILE *stream, char *buf, size_t buflen, const char **errormsg)
Read a line from the FILE stream into buf/buflen using fgets(), so up
to buflen-1 chars will be read and the result will be NUL terminated.
If the line has a trailing newline it will be removed.
If the line is too long, excess characters will be read until
newline/EOF/error.
Various -ve return values indicate different errors, and errormsg
will be changed to an error description if it's not NULL.

Convert to use getline() instead of fgets() whenever reading user input
to ensure that an overly long input line doesn't leave excess characters
for the next input operation to accidentally use as input.

Zero out the password & account after we've finished with it.

Consistently use getpass(3) (i.e, character echo suppressed) when
reading the account data. For some reason, historically the "login"
code suppressed echo for Account: yet the "user" command did not!

Display the hostname in the "getaddrinfo failed" warning.

Appease some -Wcast-qual warnings. Fixing all of these requires
significant code refactoring. (mmm, legacy code).
 1.96  20-May-2005  jdc Make this compile on sparc64 (size_t != int).
 1.95  19-May-2005  lukem Use size_t instead of int where appropriate.
 1.94  13-May-2005  lukem * Correct the "optlen" argument passed to getsockopt(3) and setsockopt(3)
in various places. Fixes a problem noted by Allen Briggs.
* Improve warning printed when connect(2) for the data channel fails.
 1.93  11-May-2005  lukem Use socklen_t instead of int as the 5th argument to getsockopt().
Improve invocation of setsockopt() and associated failure messages.
 1.92  10-May-2005  lukem Prevent an overly-long input line causing a core dump when editing is enabled.
Issue noted by Ryoji Kanai in FreeBSD Problem Report # 77158.
 1.91  11-Apr-2005  lukem gratuitous whitespace cleanup (before someone else jumps the gun...)
 1.90  21-Jul-2004  lukem branches: 1.90.2;
Slightly rework SIGINT handling; if we're exiting the auto-fetch stuff
and sigint_raised is non-zero, reset the handler for SIGINT to SIG_DFL
and raise(SIGINT) so that the appropriate wait(3) status is setup.
Based on solution proposed by Ognyan Kulev.
This should really fix PR [pkg/26351].
 1.89  20-Jul-2004  lukem If an ftp auto-fetch transfer is interrupted by SIGINT (usually ^C),
exit with 130 instead of 1 (or rarely, 0).
This allows an ftp auto-fetch in a shell loop to correctly terminate the loop.
Should fix PR [pkg/26351], and possibly others.
 1.88  09-Jul-2004  wiz Add -q to usage. From Kouichirou Hiratsuka in PR 26199.
 1.87  14-May-2004  christos PR/25566: Anders Magnusson: ftp(1) do not like large TCP windows.
Limit it to 8M.
 1.86  07-Aug-2003  agc Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22365, verified by myself.
 1.85  26-Jul-2003  salo netbsd.org->NetBSD.org
 1.84  14-May-2003  wiz Uppercase URL.
 1.83  27-Aug-2002  christos Add a -q <quit-time> flag to abort a transfer if it has stalled for <quit-time>
seconds. Ok'd by luke.
 1.82  05-Jun-2002  lukem - use setprogname()
- only support -6 if INET6 is defined
 1.81  05-Jun-2002  lukem - when showing the final progress bar, replace "00:00 ETA" with the
elapsed time. (suggested by simonb)
- actually display transfer stats after a URL fetch. (bug introduced a
*long* time ago)
- update copyright & version
 1.80  18-Mar-2002  thorpej Deal with const'ification if el_parse().
 1.79  26-Dec-2001  lukem update copyrights
 1.78  23-Dec-2001  lukem Add -4 to force IPv4 and -6 to force IPv6 address usage.
From Hajimu UMEMOTO, via Mike Heffner of FreeBSD.

(FreeBSD has imported NetBSD's ftp as their ftp client;
Mike is sending back some of their local changes).
 1.77  19-Feb-2001  cgd convert to use getprogname()
 1.76  09-Jan-2001  jdolecek call setlocale() on startup
 1.75  15-Dec-2000  lukem invoke cmdtab.c_handler()s with argv[0] == c_name instead of the
supplied name. that way the full (unambiguous) name is displayed in
error messages and usage strings.
 1.74  15-Nov-2000  lukem - implement "mreget"; as per "mget" but uses "reget" instead of "get"
- add -N netrc and $NETRC, as methods to select an alternative .netrc file
- cache local user name and home directory for further use
- in mget(), use docase() instead of a local version to do the case
conversion.
 1.73  18-Jul-2000  lukem add support for FEAT and OPTS commands with `features' and `opts'.
(from RFC 2389).

add support for MLST & MLSD (machine parseble listings) with 'mlst', 'mlsd'
and 'pmlsd' (mlsd |$PAGER) commands. (from draft-ietf-ftpext-mlst-11)

rename remotesyst() to getremoteinfo(), and modify to parse the result from
FEAT (if supported), and take into account the support for the various
extensions such as MDTM, SIZE, REST (STREAM), MLSD, and FEAT/OPTS.
put each feature into one of the following categories:
- known to work (explicit FEAT)
- unknown but assume works until explicit failure, when it's
then tagged as `known not to work'.
- known not to work (FEAT succeeded but didn't return anything,
or was unknown and then explicit failure)
assign results into features[] matrix.

add support to getreply() so that an optional callback will be called
for each line received from the server except for the first and last.
this is used in FEAT (and MLST) parsing.

modify various commands to check if REST (STREAM), MDTM and SIZE are
explicitly or implicitly supported before using.

fix `syst' when verbose is off.

minor knf (indent goto labels by one space, etc).

simply various command usage handlers by assuming that argv != NULL except
for quit() and disconnect().
 1.72  11-Jun-2000  lukem portability fixes for lukemftp:
* initconn(): use in_addr_t instead of u_int32_t when manipulating IPv6
addresses (and assume anything with ipv6 has in_addr_t; if not, i'll
add an autoconf test for it)
* ai_unmapped(): not all systems have sin_len; so only set #ifdef BSD4_4
* fix some lint
 1.71  31-May-2000  lukem Add support for 'ftp -u url file ...', to upload a list of files to given url.
Mostly based on [bin/10019] by Scott Aaron Bamford <sab@ansic.net>
 1.70  01-May-2000  lukem branches: 1.70.2;
convert to ANSI KNF
 1.69  28-Nov-1999  lukem * implement xsl_init() and xsl_add(); error checking forms of sl_{init,add}()
* fix bug where the second press of <TAB> on an empty word (i.e, list
all options) may have resulted in an strncmp() against NULL. (detected
by _DIAGASSERT())
 1.68  26-Nov-1999  lukem * complete_remote(): use remglob("", ...) instead of remglob(".", ...),
for listings of the current working directory; some ftp servers don't
like `NLST .'.
[noted by Giles Lean <giles@nemeton.com.au>]
* recvrequest(): treat remote=="" as remote==NULL when calling command().
(to support the above change)
* support `[user@]' in `[user@]host' and `[user@]host[:][path]'.
[based on idea (and initial code) from David Maxwell <david@fundy.ca>]
* `idle' may be invoked without any args
* reformat some comments
* reformat usage string in program and man page
* call updateremotepwd() after successful login, not after successful connect
* always call setsockopt(, IPPROTO_IP, IP_TOS, ) (et al); using #if
defined(IPPROTO_IP) doesn't work on certain foreign systems where
enums instead of #defines are used...
[noted by Matthias Pfaller <leo@dachau.marco.de>]
 1.67  12-Nov-1999  lukem - implement `set rprompt'; right side version of `set prompt'. depends on
EL_RPROMPT support i added to editline(3).
- allow $FTPPROMPT and $FTPRPROMPT to override defaults for the relevant
prompts
- move `%' formatting code from prompt() to expandbuf().
- implement `%.' and `%c', similar to the same % codes in tcsh(1)
(functionality I added to tcsh nearly 6 years ago), except that `%.'
always does `...trailing' and `%c' always does `/<x>trailing'.
- unknown `%foo' codes get printed as `%foo'
 1.66  11-Nov-1999  lukem - implement updateremotepwd(); update the global variable `remotepwd'
to contain the remote working directory.
- add `set prompt', a user configurable prompt. (defaults to `ftp> ').
the following escape characters a la tcsh(1) are supported: %/, %m,
%M, and %n.
- add global var `username'; used by prompt code
- fix a couple of minor memory leaks
- bump version
 1.65  24-Oct-1999  lukem new features:
- add `usage'; displays the usage of a command.
implemented by calling the c_handler() with argc = 0, argv = "funcname".
- add `passive auto'; does the same as $FTPMODE=auto.
- add `set [option value]'; display all options, or set an option to a value.
- add `unset option'; unset an option.
- add getoptionvalue() to retrieve an option's value, and replace a few
global variables with calls to this.
- implement cleanuppeer(), which resets various bits of state back to
`disconnected'. call in disconnect() and lostpeer().
- support completing on `options'.
- improve recovery after a SIGINT may have closed the connection.
XXX: there's still a couple to fix

other stuff:
- various consistency fixes in the man page.
- ensure that the command usage strings in the code and man page match reality.
- mput/mget: check that the connection still exists before each xfer.
- minor cosmetic changes in confirm().
- set code correctly in sizecmd() and modtime()
- don't need \n in err() strings.
- change lostpeer to take an argument (rather than casting (sig_t)lostpeer
in signal handlers)
- knf and whitespace police.
 1.64  13-Oct-1999  lukem * fix up confirm() (broke `a' and `p' in last commit)
* simplify main loop (don't need `top' variable any more)
* use a struct sockaddr_in6.sin6_addr for the result from inet_pton(),
rather than u_char buf[16]
* add a few more comments
 1.63  12-Oct-1999  lukem a few user interface and cosmetic tweaks:
* confirm(): move from util.c to cmds.c. display mnemonic string in its prompt.
add support for `q' (terminate current xfer), `?' (show help list)
* in various signal handlers, output a linefeed only if fromatty.
* if fgets(stdin) returned NULL (i.e, EOF), clearerr(stdin) because you don't
want future fgets to fail. this is not done for the fgets() in the main
command loop, since ftp will quit at that point.
* unless ftp is invoked with -a, don't retain the anonftp setting between
hosts (`ftp somehost:' sets anonftp, but you don't want that to `stick'
if you close that connection and open a new one).
 1.62  11-Oct-1999  lukem if editing is enabled when intr() is called, print a newline. (cosmetic fix)
 1.61  09-Oct-1999  lukem * use sigsetjmp()/siglongjump() instead of setjmp()/longjmp(); the latter
don't save the signal mask on some foreign systems.
* ensure signal handlers don't use stdio and do reset errno if they
don't exit with siglongjmp()
* use a common SIGINT handler for {send,recv}request()
 1.60  05-Oct-1999  lukem * factor out SIGINFO setting into a handler that is always active (but only
prints out info if bytes > 0). only set the handler if SIGINFO is defined
* hijack SIGQUIT to be the same as SIGINFO (foreign ports have this, and it's
annoying to have SIGQUIT dump core on netbsd when it prints info on other
systems)
* in {recv,send}request(), factor a lot of duplicated code out into a
`cleanup' section at the end
* rework shell() a bit
 1.59  05-Oct-1999  lukem add TNFi copyright to all files i've done more than a minor amount of work to...
 1.58  01-Oct-1999  lukem If EPSV or EPRT fails, disable epsv4 for the rest of the current connection.
the disabled state can be overridden by toggling epsv4.

(I got sick of the errors about EPSV not being supported on almost
every server I connect to. This way we retain support for epsv4, but
it's not so whiny after the first failure...)
 1.57  01-Oct-1999  lukem prefix the global variables in ftp_var.h with GLOBAL, which defaults
to "extern" if it's not set. define GLOBAL to (empty) in main.c.
this effectively moves all the globals into main.c whilst retaining
namespace access to them in other source files.
(global vars in header files confuse foreign linkers)
 1.56  01-Oct-1999  lukem * don't bother with "pathnames.h"; it contained just a single #define.
instead, include <paths.h> in the files that need it
* slightly reorg ftp_var.h
 1.55  30-Sep-1999  lukem * In the !NI_NUMERICHOST case (i.e, getaddrinfo() challenged systems), portnum
should be in host order. found/fixed by Matthias Pfaller <leo@dachau.marco.de>
* parse_url(): improve checking of portnum, and add an extra argument to pass
back the parsed portnum to the caller (reduces a bit of code duplication)
* Move the KAME/WIDE copyrights after the BSD/TNFi ones. Since there was
significantly less code added under the former, it's only fair on the latter.
 1.54  30-Sep-1999  lukem * fix initialisation of home[]
* fetch_url(): if path would be NULL, return strdup("")
 1.53  28-Sep-1999  lukem * add new commands:
lpage page local files
pdir as dir, but through your $PAGER
pls as ls, but through your $PAGER
* implement docase() (a la dotrans() et al) and use appropriately, rototilling
some duplicated code
* globulize(): modify to return a pointer to the strdup()ed result in all cases,
and hack the code that calls it to take this into account
* replace strcpy() and strncpy() with strlcpy()
* put(), getit(): use some aptly named local vars instead of argv[...]
* delint
 1.52  27-Sep-1999  lukem * idle(): rename to idlecmd(). certain linux distributions have an incompatible
prototype for idle() in <unistd.h> (which i thought was against namespace
and sensibility guidelines, but...)
* consistently use xsignal() instead of signal(). we get known behaviour
in all cases (SA_RESTART), which is good for some borken foreign systems.
* remove signal.h from most files; it's unnecessary now
* fetch_url(): use `long chunksize' instead of ssize_t; it's more portable, and
we're setting chunksize with strtol() anyway
* xsignal(): only use SA_RESTART if it exists. SunOS 4.x doesn't have it
but has the inverse (SA_INTERRUPT). the original function i was inspired
from had this support (lib/signal.c, W. Richard Stevens' `UNP 2nd ed Vol 1').
* remove <termios.h> from util.c; it should be unnecessary now
 1.51  24-Sep-1999  lukem if getsockopt() returns a buffer size of <= 0, set them to 8192.
this works around a problem in certain OS from Sun with a version < 5.6...
 1.50  22-Sep-1999  lukem branches: 1.50.2;
* add support for `xferbuf', which sets both `sndbuf' and `rcvbuf'
* document the above three commands
* rototill the way the sndbuf and rcvbuf work. remove resetsockbufsize()
* use the appropriate socket buffer size as the size of the buffer that
the read()/write() loops use. speeds up things in some cases.
 1.49  21-Sep-1999  lukem only default to epsv4 if INET6 is defined
 1.48  12-Jul-1999  lukem * change fetch_ftp() to be fully rfc 1738 compliant; if the URL contains
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
 1.47  11-Jul-1999  itojun add epsv4 command, which enable/disable the use of EPSV/EPRT.

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.
 1.46  10-Jul-1999  christos isurl does not return a pointer!
 1.45  02-Jul-1999  itojun add dual-stack (IPv4/v6) support. hope I broke no other part...
 1.44  29-Jun-1999  lukem [fear this; more ftp hacking from lukem :-]

features:
 1.43  20-Jun-1999  cgd split the "SMALL" #ifdefs into ones for NO_ABOUT, NO_EDITCOMPLETE, and
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.
 1.42  02-Jun-1999  lukem * fix gate mode to login as `user@realhost' rather than using PASSERVE;
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
 1.41  17-May-1999  lukem only enable editing by default if stdin is a tty.
noticed by Onno van der Linden <onno@simplex.nl>
 1.40  31-Mar-1999  lukem branches: 1.40.2;
when using editline, work on the correct buffer. fixes problem where blank
input lines were being added to the history buffer.
 1.39  22-Mar-1999  lukem * implement -R; restart non-proxied command-line FTP xfers
* fix fetch_ftp() so that hcode parsing is not done for file:// urls
(a } in the wrong place, and code at the wrong indent level...)
* change outfile to being a global (so it gets correctly reset)
* change parse_url to not remove leading '/' for non ftp urls.
whilst this is not totally rfc1738 compliant, other code kinda
assumes this is the case, and it doesn't hurt
 1.38  08-Mar-1999  lukem * add url_decode() - `in-place' decode %xx escapes in a given url component
* parse_url()
- only look for user[:pass] for an ftp url (per rfc1738)
- strip leading /'s in an ftp url. (almost per rfc 1738)
* fetch_url()
- decode a copy of the path and use that to build local filenames
- send port in http Host: header (suggested by cgd@netbsd.org)
* fetch_ftp()
- url_decode() the user, pass and path
- fix splitting of path into dir & file (partially from [bin/7073])
- don't bother caching the last host; it can cause problems when
using ftp:// transfers, or when the user changes between xfers
* improve documentation of auto-fetched url arguments (especially regarding
escape sequences in ftp:// urls)
* some whitespace & copyright updates

this should fix [bin/7073] William O Ferry <woferry@warp.wofme.com>,
as well as the metaissues raised in that PR.
 1.37  24-Jan-1999  lukem * -v enables verbose & progress, -V disables both
* set setvbuf(ttyout, NULL, _IOLBF, 0) and remove a bunch of fflush(ttyout).
* use fwrite() instead of write() for progressmeter (don't intermix stdio
with non stdio ops)
 1.36  23-Jan-1999  lukem support -f, which forces a cache flush for http xfers using either
`Pragma: no-cache' (http/1.0) or `Cache-Control: no-cache' (http/1.1)
 1.35  27-Dec-1998  lukem be saner about the method to determine which $proxy to use
 1.34  28-Sep-1998  lukem * add transfer rate to progress meter. (suggested by hubert feyrer)
* fix up progress meter display for files once > ~20.47MB has been
transferred. (noted by darren reed)
* use xsignal() for SIGWINCH, so window resizes don't abort xfers on
drainbamaged systems.
* don't assume that TIOCGWINSZ returns a non zero width.
 1.33  08-Aug-1998  lukem need <signal.h> for signal....
 1.32  03-Aug-1998  lukem features:
* support $no_proxy, which is a comma or space separated list of
host[:port] elements for which proxying is to be disabled.
(asked for by cgd in [bin/5027])
* if $FTPANONPASS is defined, use that as the anon ftp password
(instead of "`whoami`@")
* allow http URL's without a filename as long as an output file
is specified.

other stuff:
* implement parse_url(), which breaks up a URL into its bits, and use.
* simplify url_get() and auto_fetch() to use parse_url() and to not
modify the supplied URL or a copy of it.
* implement xmalloc() and xstrdup(); error-checked malloc()/strdup()
* add more consistency to messages, quoting strings in output as `%s'
 1.31  04-Jun-1998  lukem some fixes & enhancements from openbsd's ftp, with extra fixes by me:
* default to passive with active fallback. $FTPMODE modifies this behaviour.
-A forces active connection.
* support '-o outfile' for auto-fetched files. outfile can be a file,
`-' (for stdout), or '|command' (to output each file through command).
* support '-r waittime', which retries the connection after waittime seconds
if it fails.
* fix 'page file' when restart is non-zero.
* try all ip-addresses of a host in a http fetch (as the normal ftp fetch
does).

XXX: a ``broken pipe'' error sometimes occurs with -o '|command';
i haven't tracked this down yet.
 1.30  21-Jan-1998  lukem enable el_parse for unknown commands (so editrc(5) commands can be used directly
 1.29  18-Jan-1998  lukem define MAX_IN_PORT_T and use instead of USHRT_MAX. suggested by cgd@netbsd.org
 1.28  18-Jan-1998  lukem * ensure buffer for username is initialised, so ^D on username prompt
doesn't use garbage for the username. from "Soren S. Jorvang" <soren@t.dk>
in [bin/4559]
* use in_port_t for ports, and USHRT_MAX instead of 0xffff
(from millert@openbsd.org)
* use `NULL' instead of `(.... *)0' where appropriate.
 1.27  12-Dec-1997  gwr Kill the "progress bar" stuff when compiled with -DSMALL
because progressmeter() uses floats which are unwanted
when this is built under src/distrib/utils/x_ftp
(Maybe -DNO_FLOAT would be better?)
 1.26  14-Oct-1997  christos branches: 1.26.2;
PR/4257: Jaromir Dolecek: Compensate for the libedit changes.
 1.25  23-Aug-1997  lukem support $TMPDIR
 1.24  18-Aug-1997  lukem bugs fixed:
* don't interpret '-' or '|' when a local filename is determined from
the remote name (i.e, in mget, and in get with only one argument).
This is implemented using an extra argument to recvrequest().
Fixes a major security hole.
* clean up memory leak when using globulize()
* clean up a couple of comments
* fix wording in TNF copyright

features added:
* support for TIS fwtk gate-ftp servers:
* read defaults from $FTPSERVER && $FTPSERVERPORT
* start in gate-ftp mode if invoked as 'gate-ftp'
* toggle or set with 'gate [host [port]]'
 1.23  20-Jul-1997  lukem * use RCSID() && COPYRIGHT() macros
* cleanup for WARNS=1 (including some ugly '(void)&var' bits wrapped in
#ifdef __GNUC__ to shut up gcc warnings WRT setjmp/longjmp)
* use strtol() instead of atoi(), and more extensively check result of
conversion
* use u_int16_t instead of short or int for TCP port addresses
 1.22  10-Jun-1997  lukem Don't use editing or progress bar if $TERM isn't set or is "dumb". Fixes
emacs ange-ftp. Suggested by Todd Miller <Todd.Miller@courtesan.com>,
tested by matt green <mrg@eterna.com.au>
 1.21  05-Apr-1997  lukem * support $ftp_proxy for ftp:// transfers [bin/3245]
* add "more" & "less" as synonyms for "page"
* move editline setup code into controlediting(), and call appropriately.
only setup setup terminal if going into interactive mode. inspired
by Todd Miller <todd.miller@courtesan.com>
 1.20  16-Mar-1997  lukem Fixes from <Todd.Miller@cs.colorado.edu>, with some cleanup and reworks by me:
* only echo "Passive mode" in verbose mode; scripts that use ftp
may get unwanted output otherwise
* disable progress bar and modification time preservation when
retreiving to a non-regular files. fixes progress bar getting in
way of "get file /dev/tty"
* setup el_init() et al if editing is set, not if fromatty.
TODO: migrate this to a function, and call if editing is turned on later
in the session. also implement edit_cleanup if editing is turned off
* call el_set() after setting SIGWINCH handler. This fixes the problem
when suspending in a non-cbreak shell (e.g, csh) would trash your tty mode.
* reset interactive mode correctly in auto_fetch() mget mode
 1.19  14-Mar-1997  christos SMALLFTP->SMALL; remove SMALL from Makefile
 1.18  13-Mar-1997  lukem Features:
* support remglobbing of auto_fetch arguments
* new flag - '-e'; disable editing
* "page file" == "get file |${PAGER-less}"

Bugfixes/cleanup:
* consistently use a trailing '.' on messages
* code cleanup, including buffer overrun fixes, use puts
and putchar in places, etc (inspired by OpenBSD mods)
* disable progress bar when local-file is a pipe or '-'
* skip \r in http headers
* fix remote ftpd slash bug more elegantly (so it works with ////)
* abort_remote(): check if cout==NULL before using it. should fix [bin/3273]
* fixed up cosmetic problems when complete_remote() generated errors from the
remote server (such as "no files found", "login with user and pass", ...)
done by adding extra argument to remglob(), which is a pointer to an error
buffer to put messages in rather than printing to stdout.
 1.17  01-Feb-1997  lukem [Yet Another Huge Ftp Commit - hopefully the last for a while,
barring any more little things people want added ...]

New features:
* progressmeter is now asynchronous, so "stalled" transfers can be
detected. "- stalled -" is displayed instead of the ETA in this case.
When the xfer resumes, the time that the xfer was stalled for is
factored out of the ETA. It is debatable whether this is better than
not factoring it out, but I like it this way (I.e, if it stalls for 8
seconds and the ETA was 30 seconds, when it resumes the ETA will still
be 30 seconds).
* verbosity can be disabled on the command line (-V), so that in auto-fetch
mode the only lines displayed will be a description of the file, and
the progress bar (if possible)
* if the screen is resized (and detected via the SIGWINCH signal), the
progress bar will rescale automatically.

Bugs fixed:
* progress bar will not use the last character on the line, as this can
cause problems on some terminals
* screen dimensions (via ioctl(TIOCWINSZ)) should use stdout not stdin
* progressmeter() used some vars before initialising them
* ^D will quit now. [fixes bin/3162]
* use hstrerror() to generate error message for host name lookup failure.
* use getcwd instead of getwd (it should have been OK, but why tempt fate?)
* auto-fetch transfers will always return a positive exit value upon failure
or interruption, relative to the file's position in argv[].
* remote completion of / will work, without putting a leading "///".
This is actually a bug in ftpd(1), where "NLST /" prefixes all names
with "//", but fixing every ftpd(1) is not an option...
 1.16  19-Jan-1997  lukem New features:
* Command line editing via editline(3) library.
* Context sensitive command and file completion, including remote files.

Enhancements to auto-fetch feature:
* Support for http:// URLs using the http protocol, including proxy HTTP
support via $htty_proxy if it's defined.
* The connection is kept open between successive files on the same host.
(obviously, this does not count for http requests.)
* Return value of ftp is 0 on no error, or the offset in argv[] of the file
which failed (i.e., argv[x] failed, ftp returns x).
* If the path in an ftp URL or classic format line has a trailing '/',
cd to the path and enter interactive mode. Fixes [bin/3011], albiet
requiring the user to help ftp in determining the operation.

Other changes:
* '-P port' works for normal ftp, and is the default for all classic style
auto-fetch transfers and for ftp URLs that don't specify the port.
(previously it would just work for the first xfer.)
* Some code moved into separated files along logical divisions.
* Editing and completion can be compiled out with -DSMALLFTP.
 1.15  29-Dec-1996  lukem * preserve modtime if size is 0 [bin/3040, Enami Tsugutomo]
* in autofetch mode, don't retry a file if the connection failed - skip it
and move to the next file. [bin/3051, Matt Green]
* only print error messages from SIZE or MDTM if the user used 'size' or
'modt' (respectively). prevents extraneous warnings during normal transfers
when connected to a site which doesn't support these (behaviour prior to
last commit), but still allows error feedback to specific user requests
for this info (which the last commit broke).
* 'account': only accept one optional argument
* if invoked as pftp, default to passive mode on (from FreeBSD)
* remove leading '0 ' in progress bar - looked ugly
* use warn instead of perror
* use strncpy when src isn't known to have safe length
* remglob(): use mkstemp() to prevent symlink games, and don't override
_PATH_TMP, use it as the prefix to the temp file
 1.14  06-Dec-1996  lukem functionality mods:
* implement 'progress bar/meter' (inspired by ncftp). use 'progress' to
toggle on. it will display current file size to 5 digits, automatically
determining suffix (up to 16384 P (petabytes) == 2^64).
* 'ls' now uses NLST (unadorned listing), a la older ftp clients. 'dir'
still does LIST (long listing). idea from John Nemeth <jnemeth@cue.bc.ca>

bug fixes:
* return first line of reply in reply_string[] from getreply(), instead
of last line. This fixes [bin/741] (parsing of SYST), and also means
that SIZE and MDTM messages will be parsed correctly if they're longer
than 1 line.
* parse URL-style auto-ftps that have no filename correctly
(e.g, ftp://host, ftp://host/, ftp://host/dir/). pointed out by
Jaromir Dolecek <dolecek@saruman.ics.muni.cz>
* pass the correct size array in 2nd arg of utimes() when setting the
modification time
 1.13  28-Nov-1996  lukem More features, some of which were inspired by changes that
friedman@gnu.ai.mit.edu (Noah Friedman) made to his modified ftp:
- implement "lpwd" - local pwd
- implement "preserve" - toggle preserving of file modification
times on retrieved files
- allow for explicit "on" or "off" arg to toggle commands
- "exit" synonym for "quit", "msend" synonym for "mput"
- in confirmation mode, allow 'a' (yes to rest of current command),
and 'p' (turn off prompt mode, as if 'prompt off' was done,
effective immediately)
- "modtime" returns time formatted as localtime, not GMT

Bug fixes:
- check for extraneous args on commands
- cleanup const usage, line formatting
- create 0 length temporary file in remglob() to prevent symlink games
(from OpenBSD)
- check length of filename of ~/.netrc (from OpenBSD)
 1.12  25-Nov-1996  lukem cleanups/bugfixes:
- don't echo 'ACCT' parameter when debugging (a la 'PASS')
- Fix checking of directory access for "/foo", the parent
directory is "/", not "" (from FreeBSD)
- remove trailing whitespace on lines
- add any missing NetBSD tags
- cleanups to man page, includinging sorting options description

feature additions:
- variable sized hash marks (from [bin/683], but done in the hash command
as an optional arg)
- more user-friendly transfer time printing (from FreeBSD, with mods)
- '-p' command line option to jump into PASV mode (closes [bin/2857],
but with an option rather than checking argv[0])
- SIGINFO support for printing xfer stats when sending/receiving requests
- '-P port' for changing the port to connect to (from thorpej@netbsd.org)
- '-a': bypass normal login, and try anonymous login (from OpenBSD
via thorpej)
- autofetch files via url (ftp://...) or "classic" (host:/file)
(from OpenBSD via thorpej)
- 'ftp' synonymous with 'open' (from FreeBSD)
 1.11  07-May-1996  pk Fence off NULL args in getcmd() (fixes/works around PR#824).
 1.10  15-Sep-1995  pk Avoid falling off the end of a fixed-length array (from John F. Woods; PR#1431).
 1.9  14-Sep-1995  cgd needs string.h for protos.
 1.8  08-Sep-1995  tls Sync with 4.4lite2
 1.7  24-Dec-1994  cgd needs string.h
 1.6  31-Aug-1994  mycroft Fix option parsing bug reported by Uwe Arndt, and another related bogon.
 1.5  29-Aug-1994  mycroft branches: 1.5.2;
Add RCS ids.
 1.4  25-Aug-1994  cgd passive mode support, from David Carrel <carrel@cisco.com>, and cleaned
up for the new ftp sources by me.
 1.3  25-Aug-1994  cgd clean up import, no local changes.
 1.2  01-Aug-1993  mycroft Add RCS identifiers.
 1.1  21-Mar-1993  cgd branches: 1.1.1; 1.1.2;
Initial revision
 1.1.2.1  25-Aug-1994  cgd import from 4.4-Lite
 1.1.1.2  05-Sep-1995  tls imported from 44lite2
 1.1.1.1  21-Mar-1993  cgd initial import of 386bsd-0.1 sources
 1.5.2.2  31-Aug-1994  cgd From trunk.
 1.5.2.1  29-Aug-1994  cgd file main.c was added on branch netbsd-1-0 on 1994-08-31 22:07:08 +0000
 1.26.2.2  10-Nov-1998  cgd pull up rev(s) 1.28-1.34 from trunk. (feyrer)
 1.26.2.1  14-Dec-1997  mellon Pull rev 1.27 up from trunk (gwr)
 1.40.2.2  25-Jun-1999  cgd pull up rev 1.43 from trunk. (cgd)
 1.40.2.1  22-Jun-1999  perry pullup 1.40->1.42 (lukem)
 1.50.2.1  27-Dec-1999  wrstuden Pull up to last week's -current.
 1.70.2.1  23-Jun-2000  minoura Sync w/ netbsd-1-5-base.
 1.90.2.9  24-Jul-2005  tron Pull up revision 1.99 (requested by lukem in ticket #606):
Add NO_USAGE and NO_DEBUG so that we can fit in the floppies again.
 1.90.2.8  24-Jul-2005  tron Pull up revision 1.98 (requested by lukem in ticket #606):
Need to #ifdef around declaration of ch with NO_EDITCOMPLETE so this compiles
on rescue/miniroot's
 1.90.2.7  24-Jul-2005  tron Pull up revision 1.97 (requested by lukem in ticket #606):
Implement:
int getline(FILE *stream, char *buf, size_t buflen, const char **errormsg)
Read a line from the FILE stream into buf/buflen using fgets(), so up
to buflen-1 chars will be read and the result will be NUL terminated.
If the line has a trailing newline it will be removed.
If the line is too long, excess characters will be read until
newline/EOF/error.
Various -ve return values indicate different errors, and errormsg
will be changed to an error description if it's not NULL.
Convert to use getline() instead of fgets() whenever reading user input
to ensure that an overly long input line doesn't leave excess characters
for the next input operation to accidentally use as input.
Zero out the password & account after we've finished with it.
Consistently use getpass(3) (i.e, character echo suppressed) when
reading the account data. For some reason, historically the "login"
code suppressed echo for Account: yet the "user" command did not!
Display the hostname in the "getaddrinfo failed" warning.
Appease some -Wcast-qual warnings. Fixing all of these requires
significant code refactoring. (mmm, legacy code).
 1.90.2.6  24-Jul-2005  tron Pull up revision 1.96 (requested by lukem in ticket #606):
Make this compile on sparc64 (size_t != int).
 1.90.2.5  24-Jul-2005  tron Pull up revision 1.95 (requested by lukem in ticket #606):
Use size_t instead of int where appropriate.
 1.90.2.4  18-May-2005  snj Pull up revision 1.94 (requested by lukem in ticket #301):
* Correct the "optlen" argument passed to getsockopt(3) and setsockopt(3)
in various places. Fixes a problem noted by Allen Briggs.
* Improve warning printed when connect(2) for the data channel fails.
 1.90.2.3  18-May-2005  snj Pull up revision 1.93 (requested by lukem in ticket #318):
Use socklen_t instead of int as the 5th argument to getsockopt().
Improve invocation of setsockopt() and associated failure messages.
 1.90.2.2  11-May-2005  tron Pull up revision 1.92 (requested by lukem in ticket #289):
Prevent an overly-long input line causing a core dump when editing is enabled.
Issue noted by Ryoji Kanai in FreeBSD Problem Report # 77158.
 1.90.2.1  09-May-2005  tron Pull up revision 1.91 (requested by lukem in ticket #266):
gratuitous whitespace cleanup (before someone else jumps the gun...)
 1.105.4.1  09-Jan-2008  matt sync with HEAD
 1.106.6.1  18-May-2008  yamt sync with head.
 1.108.2.3  24-Sep-2008  wrstuden Merge in changes between wrstuden-revivesa-base-2 and
wrstuden-revivesa-base-3.
 1.108.2.2  18-Sep-2008  wrstuden Sync with wrstuden-revivesa-base-2.
 1.108.2.1  23-Jun-2008  wrstuden Sync w/ -current. 34 merge conflicts to follow.
 1.113.6.1  13-May-2009  jym Sync with HEAD.

Third (and last) commit. See http://mail-index.netbsd.org/source-changes/2009/05/13/msg221222.html
 1.119.2.2  23-Jan-2013  yamt sync with head
 1.119.2.1  17-Apr-2012  yamt sync with head
 1.120.6.1  25-Feb-2013  tls resync with head
 1.120.2.2  27-Aug-2016  bouyer Apply patch, requested by nonaka in ticket #1375:
src/usr.bin/ftp/cmds.c: patch
src/usr.bin/ftp/fetch.c: patch
src/usr.bin/ftp/ftp.1: patch
src/usr.bin/ftp/ftp.c: patch
src/usr.bin/ftp/ftp_var.h: patch
src/usr.bin/ftp/main.c: patch
src/usr.bin/ftp/ssl.c: patch
src/usr.bin/ftp/ssl.h: patch
src/usr.bin/ftp/version.h: patch
Update ftp(1) to version 20150912, adding https via proxy support.
 1.120.2.1  17-Dec-2013  bouyer Apply patch, requested by tron in ticket #997:
usr.bin/ftp/Makefile patch
usr.bin/ftp/cmds.c patch
usr.bin/ftp/cmdtab.c patch
usr.bin/ftp/extern.h patch
usr.bin/ftp/fetch.c patch
usr.bin/ftp/ftp.1 patch
usr.bin/ftp/ftp.c patch
usr.bin/ftp/ftp_var.h patch
usr.bin/ftp/main.c patch
usr.bin/ftp/progressbar.c patch
usr.bin/ftp/ssl.c patch
usr.bin/ftp/ssl.h patch
usr.bin/ftp/util.c patch
usr.bin/ftp/version.h patch

Add HTTPS support to ftp(1).
 1.122.8.1  05-Nov-2015  riz Pull up following revision(s) (requested by wiz in ticket #981):
usr.bin/ftp/ftp.1: revision 1.135
usr.bin/ftp/ssl.c: revision 1.3
usr.bin/ftp/ssl.c: revision 1.4
usr.bin/ftp/ssl.h: revision 1.3
usr.bin/ftp/version.h: revision 1.86
usr.bin/ftp/version.h: revision 1.87
usr.bin/ftp/fetch.c: revision 1.207
usr.bin/ftp/main.c: revision 1.123
Add -x xferbufsize to set xferbuf size.
Implement -x xferbufsize set the socket send and receive buffer size,
as per 'xferbuf' in interactive mode.
Patch from Nicholas Mills (via private mail), with minor adjustment by me.
Add Server Name Indication (SNI) support for https.
Needed for e.g. some github URLs.
Bump version for SNI support.
servername cannot be NULL here.
Noted by joerg@.
 1.123.8.3  12-Sep-2022  martin Catch up to current, requested by christos in ticket #1763:

usr.bin/ftp/Makefile up to 1.39
usr.bin/ftp/cmds.c up to 1.141
usr.bin/ftp/complete.c up to 1.47
usr.bin/ftp/domacro.c up to 1.23
usr.bin/ftp/extern.h up to 1.82
usr.bin/ftp/fetch.c up to 1.235
usr.bin/ftp/ftp.1 up to 1.147
usr.bin/ftp/ftp.c up to 1.174
usr.bin/ftp/ftp_var.h up to 1.86
usr.bin/ftp/main.c up to 1.128
usr.bin/ftp/progressbar.c up to 1.24
usr.bin/ftp/progressbar.h up to 1.9
usr.bin/ftp/ssl.c up to 1.12
usr.bin/ftp/ssl.h up to 1.5
usr.bin/ftp/util.c up to 1.164
usr.bin/ftp/version.h up to 1.94

ftp(1): validate address from PASV and LPSV response.
ftp(1): use raw write(2) instead of fwrite(3) to avoid stream
corruption because of the progress bar interrupts.
Fixes for PR 56219 and PR 55857.
PR 57003: Support relative redirects.
 1.123.8.2  12-Sep-2022  martin Backout ticket #1763 for now - trust anchors are not solved.
 1.123.8.1  12-Sep-2022  martin Catch up to current, requested by christos in ticket #1763:

usr.bin/ftp/Makefile up to 1.39
usr.bin/ftp/cmds.c up to 1.141
usr.bin/ftp/complete.c up to 1.47
usr.bin/ftp/domacro.c up to 1.23
usr.bin/ftp/extern.h up to 1.82
usr.bin/ftp/fetch.c up to 1.235
usr.bin/ftp/ftp.1 up to 1.147
usr.bin/ftp/ftp.c up to 1.174
usr.bin/ftp/ftp_var.h up to 1.86
usr.bin/ftp/main.c up to 1.128
usr.bin/ftp/progressbar.c up to 1.24
usr.bin/ftp/progressbar.h up to 1.9
usr.bin/ftp/ssl.c up to 1.11
usr.bin/ftp/ssl.h up to 1.5
usr.bin/ftp/util.c up to 1.164
usr.bin/ftp/version.h up to 1.94

ftp(1): validate address from PASV and LPSV response.
ftp(1): use raw write(2) instead of fwrite(3) to avoid stream
corruption because of the progress bar interrupts.
Fixes for PR 56219 and PR 55857.
PR 57003: Support relative redirects.
 1.125.4.1  10-Jun-2019  christos Sync with HEAD
 1.126.2.3  12-Sep-2022  martin Catch up to current, requested by christos in ticket #1523

usr.bin/ftp/Makefile up to 1.39
usr.bin/ftp/fetch.c up to 1.235
usr.bin/ftp/ftp.1 up to 1.147
usr.bin/ftp/ftp_var.h up to 1.86
usr.bin/ftp/main.c up to 1.128
usr.bin/ftp/ssl.c up to 1.12
usr.bin/ftp/util.c up to 1.164
usr.bin/ftp/version.h up to 1.94

PR 57003: Support relative redirects.
 1.126.2.2  12-Sep-2022  martin Back out ticket #1523 for now - trust anchor validation is not solved.
 1.126.2.1  12-Sep-2022  martin Catch up to current, requested by christos in ticket #1523

usr.bin/ftp/Makefile up to 1.39
usr.bin/ftp/fetch.c up to 1.235
usr.bin/ftp/ftp.1 up to 1.147
usr.bin/ftp/ftp_var.h up to 1.86
usr.bin/ftp/main.c up to 1.128
usr.bin/ftp/ssl.c up to 1.11
usr.bin/ftp/util.c up to 1.164
usr.bin/ftp/version.h up to 1.94

PR 57003: Support relative redirects.
 1.128.2.3  02-Dec-2024  martin Pull up following revision(s) (requested by lukem in ticket #1021):

usr.bin/ftp/ftp.c: revision 1.178
usr.bin/ftp/version.h: revision 1.99
usr.bin/ftp/ruserpass.c: revision 1.35
usr.bin/ftp/main.c: revision 1.134
usr.bin/ftp/main.c: revision 1.135
usr.bin/ftp/progressbar.c: revision 1.27
usr.bin/ftp/util.c: revision 1.165
usr.bin/ftp/cmds.c: revision 1.144
usr.bin/ftp/extern.h: revision 1.84
usr.bin/ftp/fetch.c: revision 1.242
usr.bin/ftp/ftp.1: revision 1.160

s/bninary/binary/ in comment.

extract duplicate code into a function.

Check bounds when copying to destination.

Remove const where the const string ended up being overwritten.

use unsigned when doing shifts.

remove const when string gets overwritten.

ftp: exit non-zero if short http transfer when filesize is known
If a http file size is known and the fetch finishes with less bytes
transferred, exit non-zero.
Bump version to 20241129.
PR bin/54713
PR bin/58281

ftp: help improvements
Document -? as a separate mode.
Document -H HEADER in the usage.
Clarify units for -b and -x.
Consistent argument names between ftp -? and ftp(1).

ftp: order getopt Upper before lower
Consistently order options in getopt and the switch
with the upper case option before the lower case option.
This makes it easier to cross-reference with -? and ftp(1).
No functional change.
 1.128.2.2  13-Oct-2024  martin Pull up following revision(s) (requested by riastradh in ticket #970):

tests/usr.bin/Makefile: revision 1.42
usr.bin/ftp/ruserpass.c: revision 1.34
usr.bin/ftp/main.c: revision 1.130
usr.bin/ftp/ssl.c: revision 1.17
usr.bin/ftp/main.c: revision 1.131
usr.bin/ftp/ssl.c: revision 1.18
usr.bin/ftp/main.c: revision 1.132
usr.bin/ftp/ssl.c: revision 1.19
usr.bin/ftp/main.c: revision 1.133
distrib/sets/lists/tests/mi: revision 1.1342
usr.bin/ftp/ftp.1: revision 1.151
usr.bin/ftp/ftp.1: revision 1.152
usr.bin/ftp/progressbar.c: revision 1.25
usr.bin/ftp/ftp.1: revision 1.153
usr.bin/ftp/progressbar.c: revision 1.26
usr.bin/ftp/ftp.1: revision 1.155
usr.bin/ftp/ftp.1: revision 1.156
usr.bin/ftp/fetch.c: revision 1.239
usr.bin/ftp/ftp.1: revision 1.157
usr.bin/ftp/ftp.1: revision 1.158
usr.bin/ftp/ftp.1: revision 1.159
usr.bin/ftp/ftp_var.h: revision 1.87
etc/mtree/NetBSD.dist.tests: revision 1.208
usr.bin/ftp/ftp_var.h: revision 1.88
usr.bin/ftp/ftp_var.h: revision 1.89
usr.bin/ftp/cmds.c: revision 1.142
usr.bin/ftp/util.c: revision 1.168
usr.bin/ftp/cmds.c: revision 1.143
tests/usr.bin/ftp/custom_headers.sh: revision 1.1
usr.bin/ftp/ssl.c: revision 1.20
usr.bin/ftp/complete.c: revision 1.48
tests/usr.bin/ftp/Makefile: revision 1.1
tests/usr.bin/ftp/t_custom_headers.sh: revision 1.1
usr.bin/ftp/fetch.c: revision 1.240
usr.bin/ftp/fetch.c: revision 1.241
usr.bin/ftp/ftp.c: revision 1.176
usr.bin/ftp/ftp.c: revision 1.177
(all via patch)

ftp(1): wording and formatting improvements

Fix grammar issue with "Support values" reported in private mail.
Document all file transfer types in "type" and cross-reference that.
Consistency fixes in describing file transfer parameters and types.

Fix some mandoc -Tlint issues (except "useless macro: Tn").

Add -b <buflen> to specify the buffer size.

ftp: bump FTPBUFLEN from 4kB to 16kB
sourceforge.net returns a 5kB content-security-policy.
Analyzed by mlelstv@ who reports usual limits are between 4kB and 48kB.
default is now 16K

ftp: improve -b documentation

Order -b bufsize in the synopsis.

Document the actual default value.

ftp: improve units used in comments and errors
Use "KiB" instead of "K" in errors.
Clarify related comments.

pass some lint.

PR/58581: Sunil Nimmagadda: Add flag to allow specifying extra http header
fields.

ftp(1): Nix trailing whitespace in man page.
No functional change intended.

PR bin/58581: ftp(1) should allow specifying header fields in http requests
fix markup (h -> H), explain about multiple headers, fix usage (from RVP)

Don't forget the dot, use the intended macro name (I think),
and improve the wording a little. (All related to the -H option.)
ftp(1): Add test for custom HTTP header fields.

Based on a patch from Sunil Nimmagadda.

PR bin/58581: ftp(1) should allow specifying header fields in http
requests
 1.128.2.1  16-May-2023  martin Pull up following revision(s) (requested by lukem in ticket #170):

usr.bin/ftp/ssl.c: revision 1.13
usr.bin/ftp/fetch.c: revision 1.236
usr.bin/ftp/util.c: revision 1.166
usr.bin/ftp/main.c: revision 1.129
usr.bin/ftp/extern.h: revision 1.83
usr.bin/ftp/ftp.1: revision 1.148
usr.bin/ftp/cmdtab.c: revision 1.53
usr.bin/ftp/version.h: revision 1.96

Add option sslnoverify to control validation of SSL certificates.

Add netrc processing to fetch-mode (URL on command line) to enable options and autologin
via netrc.

Fix SSL cleanup in some error paths.

Certificate validation is now enabled by default. Set FTPSSLNOVERIFY=1 in environment
or configure a corresponding init macro via netrc to not validate certs (required if
you haven't installed a required CA certificate for OpenSSL).

Discussed with lukem@ on icb.
 1.130.2.1  02-Aug-2025  perseant Sync with HEAD

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