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Author SHA1 Message Date
Warner Losh 1d386b48a5 Remove $FreeBSD$: one-line .c pattern 
Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
 2023-08-16 11:54:42 -06:00
Gordon Tetlow 64ae2f785e Fix libfetch out of bounds read. 
Approved by:	so
Security:	SA-21:15.libfetch
Security:	CVE-2021-36159
 2021-08-24 11:26:45 -07:00
Dag-Erling Smørgrav 8d9de5b10a Improve URL parsing. In particular, convert scheme and host to lowercase. 
MFC after:	1 week
 2018-11-27 10:45:14 +00:00
Dag-Erling Smørgrav b68815f088 Support proxying FTP over HTTPS, not just HTTP. 
There is probably a PR for this, but I can't find this, or remember who
submitted it.  The patch got lost in the noise of another that wasn't
ready to commit.

MFC after:	3 days
 2018-11-27 10:06:41 +00:00
Dag-Erling Smørgrav 5f04ebd4d3 Fix an inverted conditional in the netrc code, which would ignore the 
value of $HOME and always use the home directory from the passwd
database, unless $HOME was unset, in which case it would use (null).

While there, clean up handling of netrcfd and add debugging aids.

MFC after:	3 weeks
 2018-05-29 13:07:36 +00:00
Dag-Erling Smørgrav c5712d6da1 Use __VA_ARGS__ to simplify the DEBUG macro. 
MFC after:	3 weeks
 2018-05-29 10:28:20 +00:00
Pedro F. Giffuni 64de3fdd58 SPDX: use the Beerware identifier. 2017-11-30 20:33:45 +00:00
Pedro F. Giffuni 5e53a4f90f lib: further adoption of SPDX licensing ID tags. 
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
 2017-11-26 02:00:33 +00:00
Dag-Erling Smørgrav 792ef1ae7b Refactor fetch_connect() and fetch_bind() to improve readability and avoid 
repeating the same DNS lookups.

MFC after:	3 weeks
 2016-11-22 13:30:07 +00:00
Pedro F. Giffuni 3cd7f4295f libfetch: replace 0 with NULL for pointers. 
Found with devel/coccinelle.

Reviewed by:	des
 2016-04-09 18:08:21 +00:00
Dag-Erling Smørgrav 578153f1ba latin1 -> utf8 2011-10-19 11:43:51 +00:00
Dag-Erling Smørgrav 6337341d81 Update copyright dates and strip my middle name. 2011-09-27 18:57:26 +00:00
Dag-Erling Smørgrav ecd18c961b Think first, commit second. 
1. Allow the caller to select active mode.
2. Fix the envar logic so it *always* overrides the caller's flags.
3. Document the change from active to passive.
 2011-09-27 18:42:09 +00:00
Dag-Erling Smørgrav 4f411f8601 Long overdue: make passive mode the default for ftp. 2011-09-27 18:23:58 +00:00
Dag-Erling Smørgrav eb9b80c30d Increase WARNS to 4. 2011-05-12 21:26:42 +00:00
Dag-Erling Smørgrav e8eaf30078 Fix a bug related to connection caching which could cause a crash after 
a STAT command.

PR:		kern/153748 (different patch)
Submitted by:	Mark Johnston <markjdb@gmail.com>
MFC after:	2 weeks
 2011-01-17 17:25:46 +00:00
Attilio Rao f413289ee0 Fix a socket leak in ftp_request() after that a connection is established. 
Submitted by:	Sandvine Incorporated
Reviewed by:	des, emaste
Sponsored by:	Sandvine Incorporated
MFC:		1 week
 2009-11-25 14:57:07 +00:00
Dag-Erling Smørgrav 340b079be0 Use memcpy(3) instead of the BSD-specific bcopy(3). 
Submitted by:	Joerg Sonnenberger <joerg@britannica.bec.de>
MFC after:	2 weeks
 2008-02-08 09:48:48 +00:00
Dag-Erling Smørgrav b2a9c5a1ba Fix a regression introduced in rev 1.99: replace fclose(f) with a comment 
explaining why f cannot possibly be a valid FILE * at this point.

MFC after:	1 day
 2008-01-23 20:57:59 +00:00
Dag-Erling Smørgrav facd982794 As several people pointed out, I did all the ctype casts the wrong 
way (not for the first time...)

Noticed by:	bde, ru ++
MFC after:	1 week
 2007-12-19 00:26:36 +00:00
Dag-Erling Smørgrav 62a2681c93 Add support for the NO_PROXY / no_proxy environment variable as used by 
lynx, curl etc.  Note that this patch differs significantly from that
in the PR, as the submitter refined it after submitting the PR.

PR:		110388
Submitted by:	Alexander Pohoyda <alexander.pohoyda@gmx.net>
MFC after:	3 weeks
 2007-12-18 11:03:07 +00:00
Dag-Erling Smørgrav 836e34eeae Old patch I had lying around: correctly cast the argument to is*(). 
IWBNI gcc could warn about this the way it warns about printf() abuse.

MFC after:	1 week
 2007-12-18 10:41:12 +00:00
Dag-Erling Smørgrav a1b37df2d7 Clean up namespace violations. 
MFC after:	1 week
 2007-12-14 10:26:58 +00:00
Nate Lawson f5e97105d3 Add back the original behavior of changing the entire directory path at 
once (CWD a/b/c vs. 3 CWDs).  If an error occurs, we fall back to the default
method of a single CWD per directory element.  Since this is technically
a violation of the basic FTP RFC, this behavior is under a compile-time
option FTP_COMBINE_CWDS and is off by default.  It should work with most
Unix-based FTP daemons and can save latency.

MFC after:	2 weeks
 2007-04-22 22:33:29 +00:00
Dag-Erling Smørgrav 9aa2cb8613 Respect FETCH_BIND_ADDRESS when opening the data connection. 
PR:		misc/98872
 2006-06-13 10:21:03 +00:00
Dag-Erling Smørgrav c23fb8a4d3 Fix a bug introduced in rev 1.92, where, when changing from one directory 
to another, the first CWD after a string of CDUPs would incorrectly include
a slash before the directory name.

Reported by:	obrien
PR:		bin/83278
 2006-06-13 10:19:59 +00:00
Dag-Erling Smørgrav 254f2fa208 In order to maintain interoperability with certain broken FTP servers, 
ignore a MODE failure if and only if the mode we attempted to set was S
(which is supposed to be the default).

PR:		bin/91973
 2006-01-19 08:31:47 +00:00
Dag-Erling Smørgrav fd04cc7766 Change directory one level at a time, and use CDUP to back out. This is a 
work in progress; it partially fixed bin/83278 and is a prerequisite to
fixing bin/83277.

PR:		bin/83277, bin/83278
 2005-08-12 12:48:50 +00:00
Dag-Erling Smørgrav 2cbbf9dac9 Update copyright years. 2004-09-21 18:35:21 +00:00
Dag-Erling Smørgrav fd8f6d2269 Don't close a FILE * which we know is bogus. 2003-08-29 15:54:12 +00:00
Dag-Erling Smørgrav 39082bb4a5 Some servers respond to RETR in active mode with 125 (connection already 
open) rather than 150 (opening connection).  There's no reason why we
shouldn't accept that.

PR:		misc/42172
MFC in:		3 days
 2003-08-19 11:43:11 +00:00
Mike Makonnen 4418f9df30 The flags passed in to _ftp_get_proxy may be null 
Approved by:	des, markm (mentor)(implicit)
 2003-03-19 21:39:00 +00:00
Dag-Erling Smørgrav b91d6074d4 Don't parse the proxy URL unless we're actually going to use it. No real 
functional difference, but debugging output will be less confusing.
 2003-03-11 08:20:58 +00:00
Dag-Erling Smørgrav 930105c1e9 style(9): add parentheses to sizeof even when not strictly required. 
MFC after:	3 days
 2003-01-28 08:04:40 +00:00
Dag-Erling Smørgrav 9f808a4dd0 Hook in the .netrc code + don't use pointers as if they were booleans. 2003-01-22 17:54:49 +00:00
Nate Lawson 13cc1c8394 The FTP connection caching needs a better interface -- connections are 
closed through _fetch_close() which is the only one who knows the connection
REALLY was closed (since ref -> 0).  However, FTP keeps its own local
cached_connection and checks if it is valid by comparing it to NULL.  This
is bogus since it may have been freed elsewhere by _fetch_close().

This change checks if we are closing the cached_connection and the ref is 1
(soon to be 0).  If so, set cached_connection to NULL so we don't
accidentally reuse it.  The REAL fix should be to move connection caching
to the common.c level (_fetch_* functions) and NULL the cache(s) in
_fetch_close().  Then all layers could benefit from caching.
 2002-10-25 01:17:32 +00:00
Tim J. Robbins 9d649c1fd0 When recycling a cached connection, increment the reference count so that 
the heap block does not get freed and reused. This should fix the
pkg_add -r crashes that have been happening for months.
 2002-10-20 10:36:27 +00:00
Bill Fenner 40cfbfd508 Make _fetch_connect() always set the error code. 
Tell ftp that _fetch_connect() always sets the error code (http already knew)
 2002-09-17 05:54:33 +00:00
Hajimu UMEMOTO f8fa093e82 Cope with 2292bis-01 getaddrinfo (no NI_WITHSCOPEID, always attach 
scope identifier).

Approved by:	des
MFC after:	3 weeks
 2002-07-02 11:09:02 +00:00
Dag-Erling Smørgrav f606d589b9 Add a reference count to struct fetchconn so we don't prematurely close and 
free a cached FTP connection.
 2002-06-11 11:27:28 +00:00
Dag-Erling Smørgrav 9601e333a8 Wrap everything in struct connection, and enforce timeouts everywhere 
(except for DNS operations).  Always use funopen() for HTTP, to support
both timeouts and SSL.
 2002-06-05 12:19:08 +00:00
Dag-Erling Smørgrav dea29ca1d5 First step towards SSL support: wrap connections in a 'struct connection' 
which contains the socket descriptor, the input buffer and (yet unused)
SSL state variables.  This has the neat side effect of greatly improving
reentrance (though we're not *quite* there yet) and opening the door to
HTTP connection caching.

This commit is inspired by email conversations with and patches from
Henry Whincup <henry@techiebod.com> last fall.
 2002-06-05 10:05:03 +00:00
Poul-Henning Kamp 06229ad2af Modernize my email address 2002-03-25 13:53:46 +00:00
Dag-Erling Smørgrav e19e6098b3 Reindent, and add parentheses to return statements. Some functions in 
ftp.c and http.c now have exceedingly long lines due to deep nesting;
this will be corrected by reorganizing the code in a later revision.
 2002-02-05 22:13:51 +00:00
Dag-Erling Smørgrav e0583e0c23 Mark uploads as O_WRONLY, not O_RDONLY. 
PR:		misc/34043
MFC after:	2 weeks
 2002-01-20 19:52:25 +00:00
Dag-Erling Smørgrav f67efa37d6 Remove VT100 escapes from debugging messages now that they're enabled by 
default.

PR:		32988
MFC after:	3 days
 2002-01-01 14:48:09 +00:00
Dag-Erling Smørgrav 102a87c1e1 Reorganize to reduce code duplication. 2001-12-04 01:09:19 +00:00
Dag-Erling Smørgrav f573a5fc94 Tons of type, style and warning fixes that have been rotting in my tree for 
ages - some of which wouldn't be necessary if gcc wasn't broken or TPTB were
willing to do something (-fno-builtin) about it.
 2001-10-18 08:29:26 +00:00
Matthew Dillon cecb889f1d Add __FBSDID()s to libfetch 2001-09-30 21:36:09 +00:00
Brian Somers 778de35906 Handle snprintf() returning < 0 (not just -1) 
MFC after:	2 weeks
 2001-08-20 15:44:17 +00:00