Commit Graph

198 Commits

Author SHA1 Message Date
Nick Mathewson
d4489a2851 Rewrite comment at head of eventdns.c
Let's make it more obvious to the everyday reader that eventdns.c is
  a) Based on Libevent's evdns.c
  b) Slated for demolition
  c) Supposed to keep API-compatibility with Libevent.
  d) Not worth tweaking unless there's a bug.
2011-11-09 00:23:44 -05:00
Andrea Gelmini
72d4d762c1 Remove some duplicate includes 2011-11-03 10:23:33 -04:00
Nick Mathewson
1d18c2deb6 Don't shadow parameters with local variables
This is a little error-prone when the local has a different type
from the parameter, and is very error-prone with both have the same
type.  Let's not do this.

Fixes CID #437,438,439,440,441.
2011-07-01 11:33:07 -04:00
Nick Mathewson
21de9d46e2 Merge remote-tracking branch 'origin/maint-0.2.2'
Conflicts:
	src/common/compat.c
	src/or/main.c
2011-05-30 14:58:26 -04:00
Nick Mathewson
da7c60dcf3 Merge remote-tracking branch 'public/bug3270' into maint-0.2.2 2011-05-30 14:49:49 -04:00
Nick Mathewson
285cf998bc Merge remote-tracking branch 'origin/maint-0.2.2'
Conflicts:
	src/or/eventdns.c
2011-05-28 02:09:48 -04:00
Nick Mathewson
c319949550 Merge remote-tracking branch 'origin/maint-0.2.1' into maint-0.2.2 2011-05-28 02:08:39 -04:00
Nick Mathewson
ee72557d52 Merge branch 'bug2574' into maint-0.2.1 2011-05-28 02:07:48 -04:00
Nick Mathewson
42b15a0aaa Merge remote-tracking branch 'origin/maint-0.2.2' 2011-05-28 01:55:34 -04:00
Nick Mathewson
be76850995 Work correctly if your nameserver is ::1
We had all the code in place to handle this right... except that we
were unconditionally opening a PF_INET socket instead of looking at
sa_family.  Ow.

Fixes bug 2574; not a bugfix on any particular version, since this
never worked before.
2011-05-23 17:42:38 -04:00
Nick Mathewson
a5232e0c4c Fix GCC 4.6's new -Wunused-but-set-variable warnings.
Most instances were dead code; for those, I removed the assignments.
Some were pieces of info we don't currently plan to use, but which
we might in the future.  For those, I added an explicit cast-to-void
to indicate that we know that the thing's unused.  Finally, one was
a case where we were testing the wrong variable in a unit test.
That one I fixed.

This resolves bug 3208.
2011-05-23 17:04:38 -04:00
Nick Mathewson
cfeafe5e77 Use a 64-bit type to hold sockets on win64.
On win64, sockets are of type UINT_PTR; on win32 they're u_int;
elsewhere they're int.  The correct windows way to check a socket for
being set is to compare it with INVALID_SOCKET; elsewhere you see if
it is negative.

On Libevent 2, all callbacks take sockets as evutil_socket_t; we've
been passing them int.

This patch should fix compilation and correctness when built for
64-bit windows.  Fixes bug 3270.
2011-05-23 00:17:48 -04:00
Nick Mathewson
9fba014e3f Merge remote-tracking branch 'public/bug3122_memcmp_022' into bug3122_memcmp_023
Conflicts in various places, mainly node-related.  Resolved them in
favor of HEAD, with copying of tor_mem* operations from bug3122_memcmp_022.

	src/common/Makefile.am
	src/or/circuitlist.c
	src/or/connection_edge.c
	src/or/directory.c
	src/or/microdesc.c
	src/or/networkstatus.c
	src/or/router.c
	src/or/routerlist.c
	src/test/test_util.c
2011-05-11 16:39:45 -04:00
Nick Mathewson
8fb38331c3 Hand-tune the new tor_memcmp instances in 0.2.2 2011-05-11 16:32:30 -04:00
Nick Mathewson
0cbcbc3412 Re-apply the automated conversion to 0.2.2 to make handle any memcmps that snuck in 2011-05-11 16:27:27 -04:00
Nick Mathewson
44ad734573 Merge remote-tracking branch 'public/3122_memcmp_squashed' into bug3122_memcmp_022
Conflicts throughout.  All resolved in favor of taking HEAD and
adding tor_mem* or fast_mem* ops as appropriate.

	src/common/Makefile.am
	src/or/circuitbuild.c
	src/or/directory.c
	src/or/dirserv.c
	src/or/dirvote.c
	src/or/networkstatus.c
	src/or/rendclient.c
	src/or/rendservice.c
	src/or/router.c
	src/or/routerlist.c
	src/or/routerparse.c
	src/or/test.c
2011-05-11 16:24:29 -04:00
Nick Mathewson
59f9097d5c Hand-conversion and audit phase of memcmp transition
Here I looked at the results of the automated conversion and cleaned
them up as follows:

   If there was a tor_memcmp or tor_memeq that was in fact "safe"[*] I
   changed it to a fast_memcmp or fast_memeq.

   Otherwise if there was a tor_memcmp that could turn into a
   tor_memneq or tor_memeq, I converted it.

This wants close attention.

[*] I'm erring on the side of caution here, and leaving some things
as tor_memcmp that could in my opinion use the data-dependent
fast_memcmp variant.
2011-05-11 16:12:51 -04:00
Nick Mathewson
db7b2a33ee Automated conversion of memcmp to tor_memcmp/tor_mem[n]eq
This commit is _exactly_ the result of

perl -i -pe 's/\bmemcmp\(/tor_memcmp\(/g' src/*/*.[ch]
perl -i -pe 's/\!\s*tor_memcmp\(/tor_memeq\(/g' src/*/*.[ch]
perl -i -pe 's/0\s*==\s*tor_memcmp\(/tor_memeq\(/g' src/*/*.[ch]
perl -i -pe 's/0\s*!=\s*tor_memcmp\(/tor_memneq\(/g' src/*/*.[ch]
git checkout src/common/di_ops.[ch]
git checkout src/or/test.c
git checkout src/common/test.h
2011-05-11 16:12:51 -04:00
Nick Mathewson
33f058a5ba Merge remote-tracking branch 'origin/maint-0.2.2' 2011-04-26 13:12:43 -04:00
Nick Mathewson
b75d1daf40 Merge remote-tracking branch 'public/bug2332' into maint-0.2.2 2011-04-26 13:10:54 -04:00
Nick Mathewson
fdbdaf8fab Merge remote-tracking branch 'origin/maint-0.2.2' 2011-04-21 13:41:38 -04:00
Nick Mathewson
a0514ba531 Merge remote-tracking branch 'origin/maint-0.2.1' into maint-0.2.2 2011-04-21 13:40:00 -04:00
Nick Mathewson
e98583594d Fix a bug in removing DNSPort requests from their circular list
Under heavy load, this could result in an assertion failure.  Fix for
bug 2933; bugfix on 0.2.0.10-alpha.
2011-04-21 13:39:00 -04:00
Nick Mathewson
67d88a7d60 Merge remote-tracking branch 'origin/maint-0.2.2'
Conflicts:
	src/common/address.c
	src/common/compat_libevent.c
	src/common/memarea.c
	src/common/util.h
	src/or/buffers.c
	src/or/circuitbuild.c
	src/or/circuituse.c
	src/or/connection.c
	src/or/directory.c
	src/or/networkstatus.c
	src/or/or.h
	src/or/routerlist.c
2011-04-07 12:17:20 -04:00
Nick Mathewson
05887f10ff Triage the XXX022 and XXX021 comments remaining in the code
Remove some, postpone others, leave some alone.  Now the only
remaining XXX022s are ones that seem important to fix or investigate.
2011-03-25 18:32:27 -04:00
Nick Mathewson
6a829a3404 Make eventdns server functions const void* to match libevent
partial fix for bug 2332
2011-01-10 16:00:48 -05:00
Nick Mathewson
394a6bf4cd Merge remote branch 'origin/maint-0.2.2' 2011-01-03 12:47:58 -05:00
Sebastian Hahn
9ecf133686 Fix compile wanrings revealed by gcc 4.5 on mingw 2010-12-27 09:47:41 +01:00
Steven Murdoch
367794ce02 Open connection to DNS resolvers with CLOEXEC flag set
NB: this will now register the socket with the socket accounting code
2010-12-01 15:40:11 +00:00
Nick Mathewson
5a66de7015 Initial work to set CLOEXEC on all possible fds
Still to go: some pipes, all stdio files.
2010-11-20 00:58:40 -05:00
Nick Mathewson
d073d7d4eb Consistency issues in load_windows_system_library patch. Thanks Sebastian 2010-09-24 14:16:55 -04:00
Nick Mathewson
aa7f55c45f Use load_windows_system_library in place of LoadLibrary 2010-09-21 14:40:10 -04:00
Sebastian Hahn
ff5ffd1776 Attempt to fix compilation on Windows
Our attempt to make compilation work on old versions of Windows
again while keeping wince compatibility broke the build for Win2k+.
helix reports this patch fixes the issue for WinXP. Bugfix on
0.2.2.15-alpha; related to bug 1797.
2010-09-19 13:39:30 +02:00
Nick Mathewson
c0c7868250 Make the windows build succeed with or without -DUNICODE enabled.
This should keep WinCE working (unicode always-on) and get Win98
working again (unicode never-on).

There are two places where we explicitly use ASCII-only APIs, still:
in ntmain.c and in the unit tests.

This patch also fixes a bug in windoes tor_listdir that would cause
the first file to be listed an arbitrary number of times that was
also introduced with WinCE support.

Should fix bug 1797.
2010-08-20 13:40:01 -04:00
valerino
8d31141ccb Port Tor to work on Windows CE
Most of the changes here are switches to use APIs available on Windows
CE.  The most pervasive change is that Windows CE only provides the
wide-character ("FooW") variants of most of the windows function, and
doesn't support the older ASCII verions at all.

This patch will require use of the wcecompat library to get working
versions of the posix-style fd-based file IO functions.

[commit message by nickm]
2010-05-24 11:46:45 -04:00
Nick Mathewson
2590d733f4 Try to untangle the logic in server_port_flush
It's a bit confusing to have a loop where another function,
confusingly named "*_free", is responsible for advancing the loop
variable (or rather, for altering a structure so that the next time
the loop variable's initializer is evaluated it evaluates to something
different.)

Not only has this confused people: it's also confused coverity scan.
Let's fix that.
2010-01-25 14:09:58 -05:00
Nick Mathewson
d4354b506b Don't use OutboundBindAddress to connect to localhost
The OutboundBindAddress option is useful for making sure that all of
your outbond connections use a given interface.  But when connecting
to 127.0.0.1 (or ::1 even) it's important to actually have the
connection come _from_ localhost, since lots of programs running on
localhost use the source address to authenticate that the connection
is really coming from the same host.

Our old code always bound to OutboundBindAddress, whether connecting
to localhost or not.  This would potentially break DNS servers on
localhost, and socks proxies on localhost.  This patch changes the
behavior so that we only look at OutboundBindAddress when connecting
to a non-loopback address.
2010-01-20 13:09:10 -05:00
Nathan Freitas
8c585cce39 Include util.h and log.h as relative paths.
This shouldn't be necessary, but apparently the Android cross-compiler
doesn't respect -I as well as it should.  (-I is supposed to add to the
*front* of the search path.  Android's gcc wrapper apparently likes to add to
the end.  This is broken, but we need to work around it.)
2009-09-29 00:52:52 -04:00
Nick Mathewson
1cda6f3e75 Merge commit 'origin/maint-0.2.1' 2009-09-01 15:59:40 -04:00
Sebastian Hahn
aea9cf1011 Fix compile warnings on Snow Leopard
Big thanks to nickm and arma for helping me with this!
2009-09-01 18:36:27 +02:00
Mike Perry
9e1fe29beb Switch over to tor_strtok_r instead of strtok_r. 2009-08-09 18:42:29 -07:00
Nick Mathewson
9f28cfe86a Merge commit 'origin/maint-0.2.1' 2009-06-30 10:13:51 -04:00
Nick Mathewson
7ce767181f Have eventdns set the "truncated" bit correctly.
Fixed bug 1022; This isn't actually a live bug in Tor, since in Tor
we never generate large DNS replies.
2009-06-30 10:05:42 -04:00
Nick Mathewson
e5b88dc83f Update Tor to use Libevent 2.0 APIs when available.
This patch adds a new compat_libevent.[ch] set of files, and moves our
Libevent compatibility and utilitity functions there.  We build them
into a separate .a so that nothing else in src/commmon depends on
Libevent (partially fixing bug 507).

Also, do not use our own built-in evdns copy when we have Libevent
2.0, whose evdns is finally good enough (thus fixing Bug 920).
2009-06-12 14:27:52 -04:00
Nick Mathewson
b805e5debf Merge commit 'origin/maint-0.2.1' into master.
Conflicts:
	ChangeLog
	configure.in
	contrib/tor-mingw.nsi.in
	src/win32/orconfig.h
2009-05-25 16:43:52 -04:00
Nick Mathewson
99c315a473 Use tor_socket_strerror in eventdns.c. Fixes bug 987. 2009-05-25 16:38:50 -04:00
Nick Mathewson
a3fadddd4a Improved bug-957 fix for 0.2.2.
Really, our idiocy was that we were calling event_set() on the same
event more than once, which sometimes led to us calling event_set() on
an event that was already inserted, thus making it look uninserted.
With this patch, we just initialize the timeout events when we create
the requests and nameservers, and we don't need to worry about
double-add and double-del cases at all.
2009-05-22 14:06:39 -04:00
Nick Mathewson
1d002a25a2 Finish up the 0.2.1 version of the bug 957 fix.
Basically, all this means is downgrading our warning messages to debug
messages, since the bug workaround code here is adequate to stop the
bug.
2009-05-22 11:47:09 -04:00
Nick Mathewson
34030a3d23 Possible fix for crash bug related to event timeouts. [Bug 957]
If we ever add an event, then set it, then add it again, there will be
now two pointers to the event in the event base.  If we delete one and
free it, the first pointer will still be there, and possibly cause a
crash later.

This patch adds detection for this case to the code paths in
eventdns.c, and works around it.  If the warning message ever
displays, then a cleverer fix is in order.

{I am not too confident that this *is* the fix, since bug 957 is very
tricky.  If it is, it is a bugfix on 0.2.0.}
2009-05-18 16:12:39 -04:00
Nick Mathewson
27c3b43817 Fix one case of bug 929.
svn:r18683
2009-02-23 20:04:51 +00:00