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Commit Graph

468 Commits

Author SHA1 Message Date
Daniel Stenberg
6b12beb25a
connect: store IPv6 connection status after valid connection
... previously it would store it already in the happy eyeballs stage
which could lead to the IPv6 bit being set for an IPv4 connection,
leading to curl not wanting to do EPSV=>PASV for FTP transfers.

Closes #2053
2017-11-09 07:59:04 +01:00
Daniel Stenberg
7ee59512f8
timeleft: made two more users of Curl_timeleft use timediff_t 2017-10-29 13:13:23 +01:00
Daniel Stenberg
0d85eed3df
Curl_timeleft: change return type to timediff_t
returning 'time_t' is problematic when that type is unsigned and we
return values less than zero to signal "already expired", used in
several places in the code.

Closes #2021
2017-10-28 10:40:51 +02:00
Daniel Stenberg
5d543fe906 time: rename Curl_tvnow to Curl_now
... since the 'tv' stood for timeval and this function does not return a
timeval struct anymore.

Also, cleaned up the Curl_timediff*() functions to avoid typecasts and
clean up the descriptive comments.

Closes #2011
2017-10-25 18:48:05 +02:00
Daniel Stenberg
b9d25f9a6b timediff: return timediff_t from the time diff functions
... to cater for systems with unsigned time_t variables.

- Renamed the functions to curlx_timediff and Curl_timediff_us.

- Added overflow protection for both of them in either direction for
  both 32 bit and 64 bit time_ts

- Reprefixed the curlx_time functions to use Curl_*

Reported-by: Peter Piekarski
Fixes #2004
Closes #2005
2017-10-25 09:54:37 +02:00
Anders Bakken
49d75a4c15
connect: fix race condition with happy eyeballs timeout
The timer should be started after conn->connecttime is set. Otherwise
the timer could expire without this condition being true:

    /* should we try another protocol family? */
    if(i == 0 && conn->tempaddr[1] == NULL &&
      curlx_tvdiff(now, conn->connecttime) >= HAPPY_EYEBALLS_TIMEOUT) {

Ref: #1928
2017-09-29 08:51:59 +02:00
Daniel Stenberg
e5743f08e7
code style: use spaces around pluses 2017-09-11 09:29:50 +02:00
Daniel Stenberg
6b84438d9a
code style: use spaces around equals signs 2017-09-11 09:29:50 +02:00
Nick Zitzmann
870d849d48 configure: check for __builtin_available() availability (#1788)
This change does two things:
1. It un-breaks the build in Xcode 9.0. (Xcode 9.0 is currently
   failing trying to compile connectx() in lib/connect.c.)
2. It finally weak-links the connectx() function, and falls back on
   connect() when run on older operating systems.
2017-08-16 12:24:39 -05:00
Daniel Stenberg
4dee50b9c8 timeval: struct curltime is a struct timeval replacement
... to make all libcurl internals able to use the same data types for
the struct members. The timeval struct differs subtly on several
platforms so it makes it cumbersome to use everywhere.

Ref: #1652
Closes #1693
2017-07-28 15:51:25 +02:00
Jay Satiro
af0216251b curl_setup_once: Remove ERRNO/SET_ERRNO macros
Prior to this change (SET_)ERRNO mapped to GetLastError/SetLastError
for Win32 and regular errno otherwise.

I reviewed the code and found no justifiable reason for conflating errno
on WIN32 with GetLastError/SetLastError. All Win32 CRTs support errno,
and any Win32 multithreaded CRT supports thread-local errno.

Fixes https://github.com/curl/curl/issues/895
Closes https://github.com/curl/curl/pull/1589
2017-07-10 02:09:27 -04:00
Daniel Stenberg
909a5bee81 configure: remove checks for 5 functions never used
fork, getprotobyname, inet_addr, perror, uname

closes #1638
2017-07-04 11:32:25 +02:00
Daniel Stenberg
7fffe97b78 expire: remove Curl_expire_latest()
With the introduction of expire IDs and the fact that existing timers
can be removed now and thus never expire, the concept with adding a
"latest" timer is not working anymore as it risks to not expire at all.

So, to be certain the timers actually are in line and will expire, the
plain Curl_expire() needs to be used. The _latest() function was added
as a sort of shortcut in the past that's quite simply not necessary
anymore.

Follow-up to 31b39c40cf

Reported-by: Paul Harris

Closes #1555
2017-06-08 10:50:47 +02:00
Daniel Stenberg
e9fd794a61 multi: assign IDs to all timers and make each timer singleton
A) reduces the timeout lists drastically

 B) prevents a lot of superfluous loops for timers that expires "in vain"
    when it has actually already been extended to fire later on
2017-05-10 11:02:47 +02:00
Marcel Raad
a8e523f086
connect: fix unreferenced parameter warning
When CURL_DISABLE_VERBOSE_STRINGS is defined, the reason parameter in
Curl_conncontrol is not used as the infof macro expands to nothing.
2017-03-30 10:14:34 +02:00
Sylvestre Ledru
66de563482 Improve code readbility
... by removing the else branch after a return, break or continue.

Closes #1310
2017-03-13 23:11:45 +01:00
Jay Satiro
d00f2a8f2e http_proxy: Fix proxy CONNECT hang on pending data
- Check for pending data before waiting on the socket.

Bug: https://github.com/curl/curl/issues/1156
Reported-by: Adam Langley
2016-12-19 02:26:52 -05:00
Isaac Boukris
82245eaa56 Curl_getconnectinfo: avoid checking if the connection is closed
It doesn't benefit us much as the connection could get closed at
any time, and also by checking we lose the ability to determine
if the socket was closed by reading zero bytes.

Reported-by: Michael Kaufmann

Closes https://github.com/curl/curl/pull/1134
2016-12-18 12:47:10 +01:00
Daniel Stenberg
b228d2952b checksrc: stricter no-space-before-paren enforcement
In order to make the code style more uniform everywhere
2016-12-13 23:39:11 +01:00
Frank Gevaerts
ba410f6c64 add CURLINFO_SCHEME, CURLINFO_PROTOCOL, and %{scheme}
Adds access to the effectively used protocol/scheme to both libcurl and
curl, both in string and numeric (CURLPROTO_*) form.

Note that the string form will be uppercase, as it is just the internal
string.

As these strings are declared internally as const, and all other strings
returned by curl_easy_getinfo() are de-facto const as well, string
handling in getinfo.c got const-ified.

Closes #1137
2016-11-25 00:45:18 +01:00
Daniel Stenberg
8657c268e1 checksrc: white space edits to comply to stricter checksrc 2016-11-24 23:58:22 +01:00
Daniel Stenberg
dbadaebfc4 checksrc: code style: use 'char *name' style 2016-11-24 23:58:22 +01:00
Alex Rousskov
cb4e2be7c6 proxy: Support HTTPS proxy and SOCKS+HTTP(s)
* HTTPS proxies:

An HTTPS proxy receives all transactions over an SSL/TLS connection.
Once a secure connection with the proxy is established, the user agent
uses the proxy as usual, including sending CONNECT requests to instruct
the proxy to establish a [usually secure] TCP tunnel with an origin
server. HTTPS proxies protect nearly all aspects of user-proxy
communications as opposed to HTTP proxies that receive all requests
(including CONNECT requests) in vulnerable clear text.

With HTTPS proxies, it is possible to have two concurrent _nested_
SSL/TLS sessions: the "outer" one between the user agent and the proxy
and the "inner" one between the user agent and the origin server
(through the proxy). This change adds supports for such nested sessions
as well.

A secure connection with a proxy requires its own set of the usual SSL
options (their actual descriptions differ and need polishing, see TODO):

  --proxy-cacert FILE        CA certificate to verify peer against
  --proxy-capath DIR         CA directory to verify peer against
  --proxy-cert CERT[:PASSWD] Client certificate file and password
  --proxy-cert-type TYPE     Certificate file type (DER/PEM/ENG)
  --proxy-ciphers LIST       SSL ciphers to use
  --proxy-crlfile FILE       Get a CRL list in PEM format from the file
  --proxy-insecure           Allow connections to proxies with bad certs
  --proxy-key KEY            Private key file name
  --proxy-key-type TYPE      Private key file type (DER/PEM/ENG)
  --proxy-pass PASS          Pass phrase for the private key
  --proxy-ssl-allow-beast    Allow security flaw to improve interop
  --proxy-sslv2              Use SSLv2
  --proxy-sslv3              Use SSLv3
  --proxy-tlsv1              Use TLSv1
  --proxy-tlsuser USER       TLS username
  --proxy-tlspassword STRING TLS password
  --proxy-tlsauthtype STRING TLS authentication type (default SRP)

All --proxy-foo options are independent from their --foo counterparts,
except --proxy-crlfile which defaults to --crlfile and --proxy-capath
which defaults to --capath.

Curl now also supports %{proxy_ssl_verify_result} --write-out variable,
similar to the existing %{ssl_verify_result} variable.

Supported backends: OpenSSL, GnuTLS, and NSS.

* A SOCKS proxy + HTTP/HTTPS proxy combination:

If both --socks* and --proxy options are given, Curl first connects to
the SOCKS proxy and then connects (through SOCKS) to the HTTP or HTTPS
proxy.

TODO: Update documentation for the new APIs and --proxy-* options.
Look for "Added in 7.XXX" marks.
2016-11-24 23:41:44 +01:00
Marcel Raad
21aa32d30d lib: fix compiler warnings after de4de4e3c7
Visual C++ now complains about implicitly casting time_t (64-bit) to
long (32-bit). Fix this by changing some variables from long to time_t,
or explicitly casting to long where the public interface would be
affected.

Closes #1131
2016-11-18 10:11:55 +01:00
Daniel Stenberg
8a6e89a9eb select: switch to macros in uppercase
Curl_select_ready() was the former API that was replaced with
Curl_select_check() a while back and the former arg setup was provided
with a define (in order to leave existing code unmodified).

Now we instead offer SOCKET_READABLE and SOCKET_WRITABLE for the most
common shortcuts where only one socket is checked. They're also more
visibly macros.
2016-10-18 11:05:45 +02:00
Marcel Raad
422db18f15
win: fix Universal Windows Platform build
This fixes a merge error in commit 7f3df80 caused by commit 332e8d6.

Additionally, this changes Curl_verify_windows_version for Windows App
builds to assume to always be running on the target Windows version.
There seems to be no way to determine the Windows version from a
UWP app. Neither GetVersion(Ex), nor VerifyVersionInfo, nor the
Version Helper functions are supported.

Bug: https://github.com/curl/curl/pull/820#issuecomment-250889878
Reported-by: Paul Joyce

Closes https://github.com/curl/curl/pull/1048
2016-10-16 12:09:12 +02:00
Daniel Stenberg
c69cafe7e2 connect: fix #ifdefs for debug versions of conn/streamclose() macros
CURLDEBUG is for the memory debugging

DEBUGBUILD is for the extra debug stuff

Pointed-out-by: Steve Holme
2016-08-30 23:38:06 +02:00
Daniel Stenberg
3533def3d5 http2: make sure stream errors don't needlessly close the connection
With HTTP/2 each transfer is made in an indivial logical stream over the
connection, making most previous errors that caused the connection to get
forced-closed now instead just kill the stream and not the connection.

Fixes #941
2016-08-28 16:44:49 +02:00
Marco Deckel
7f3df80408 win: Basic support for Universal Windows Platform apps
Closes #820
2016-08-21 13:56:22 +02:00
Jay Satiro
4ee203542d connect: disable TFO on Linux when using SSL
- Linux TFO + TLS is not implemented yet.

Bug: https://github.com/curl/curl/issues/907
2016-07-20 02:49:19 -04:00
Daniel Stenberg
434f8d0389 internals: rename the SessionHandle struct to Curl_easy 2016-06-22 10:28:41 +02:00
Steve Holme
61c92c7850 connect.c: Fixed compilation warning from commit 332e8d6164
connect.c:952:5: warning: suggest explicit braces to avoid ambiguous 'else'
2016-06-04 21:52:08 +01:00
Steve Holme
332e8d6164 win32: Used centralised verify windows version function
Closes #845
2016-06-04 21:24:09 +01:00
Antonio Larrosa
ae8f662072 connect: fix invalid "Network is unreachable" errors
Sometimes, in systems with both ipv4 and ipv6 addresses but where the
network doesn't support ipv6, Curl_is_connected returns an error
(intermittently) even if the ipv4 socket connects successfully.

This happens because there's a for-loop that iterates on the sockets but
the error variable is not resetted when the ipv4 is checked and is ok.

This patch fixes this problem by setting error to 0 when checking the
second socket and not having a result yet.

Fixes #794
2016-05-08 14:29:26 +02:00
Daniel Stenberg
4f45240bc8 lib: include curl_printf.h as one of the last headers
curl_printf.h defines printf to curl_mprintf, etc. This can cause
problems with external headers which may use
__attribute__((format(printf, ...))) markers etc.

To avoid that they cause problems with system includes, we include
curl_printf.h after any system headers. That makes the three last
headers to always be, and we keep them in this order:

 curl_printf.h
 curl_memory.h
 memdebug.h

None of them include system headers, they all do funny #defines.

Reported-by: David Benjamin

Fixes #743
2016-04-29 22:32:49 +02:00
Kamil Dudka
ad3d40d407 connect: make sure that rc is initialized in singleipconnect()
This commit fixes a Clang warning introduced in curl-7_48_0-190-g8f72b13:

Error: CLANG_WARNING:
lib/connect.c:1120:11: warning: The right operand of '==' is a garbage value
1118|       }
1119|
1120|->     if(-1 == rc)
1121|         error = SOCKERRNO;
1122|     }
2016-04-19 09:38:44 +02:00
Alessandro Ghedini
03de4e4b21 connect: implement TCP Fast Open for Linux
Closes #660
2016-04-18 23:21:50 +02:00
Alessandro Ghedini
8f72b13660 connect: implement TCP Fast Open for OS X 2016-04-18 23:17:19 +02:00
Michael Kaufmann
cd8d236245 news: CURLOPT_CONNECT_TO and --connect-to
Makes curl connect to the given host+port instead of the host+port found
in the URL.
2016-04-17 23:50:59 +02:00
Steve Holme
9351383745 connect/ntlm/http: Fixed compilation warnings when verbose strings disabled
warning C4189: 'data': local variable is initialized but not referenced
2016-03-20 17:51:06 +00:00
Viktor Szakats
d49881cb19 URLs: change more http to https 2016-02-04 18:46:54 -05:00
Daniel Stenberg
4af40b3646 URLs: change all http:// URLs to https:// 2016-02-03 00:19:02 +01:00
Anders Bakken
a72207ecf0 getconnectinfo: Don't call recv(2) if socket == -1
Closes #528
2015-11-16 22:42:13 +01:00
Daniel Stenberg
af90becf4b http2: set TCP_NODELAY unconditionally
For a single-stream download from localhost, we managed to increase
transfer speed from 1.6MB/sec to around 400MB/sec, mostly because of
this single fix.
2015-09-27 23:23:58 +02:00
Tatsuhiro Tsujikawa
119037325d build: fix failures with -Wcast-align and -Werror
Closes #457
2015-09-26 23:10:20 +02:00
Steve Holme
11ab3f8918 win32: Fix compilation warnings from commit 40c921f8b8
connect.c:953:5: warning: initializer element is not computable at load
                 time
connect.c:953:5: warning: missing initializer for field 'dwMinorVersion'
                 of 'OSVERSIONINFOEX'
curl_sspi.c:97:5: warning: initializer element is not computable at load
                  time
curl_sspi.c:97:5: warning: missing initializer for field 'szCSDVersion'
                  of 'OSVERSIONINFOEX'
2015-08-01 22:55:01 +01:00
Jay Satiro
40c921f8b8 Windows: Fix VerifyVersionInfo calls
- Fix the VerifyVersionInfo calls, which we use to test for the OS major
version, to also test for the minor version as well as the service pack
major and minor versions.

MSDN: "If you are testing the major version, you must also test the
minor version and the service pack major and minor versions."

https://msdn.microsoft.com/en-us/library/windows/desktop/ms725492.aspx

Bug: https://github.com/bagder/curl/pull/353#issuecomment-123493098
Reported-by: Marcel Raad <MarcelRaad@users.noreply.github.com>
2015-07-22 01:55:43 -04:00
Daniel Stenberg
20ac345806 CURLOPT_OPENSOCKETFUNCTION: return error at once
When CURL_SOCKET_BAD is returned in the callback, it should be treated
as an error (CURLE_COULDNT_CONNECT) if no other socket is subsequently
created when trying to connect to a server.

Bug: http://curl.haxx.se/mail/lib-2015-06/0047.html
2015-06-09 00:22:02 +02:00
Daniel Stenberg
640296c95d connection cache: avoid Curl_hash_alloc()
... by using plain structs instead of pointers for the connection cache,
we can avoid several dynamic allocations that weren't necessary.
2015-05-12 09:15:02 +02:00
Dan Fandrich
35648f2e79 curl_memory: make curl_memory.h the second-last header file loaded
This header file must be included after all header files except
memdebug.h, as it does similar memory function redefinitions and can be
similarly affected by conflicting definitions in system or dependent
library headers.
2015-03-24 23:47:01 +01:00
Yamada Yasuharu
ecc4940df2 curl_easy_recv/send: make them work with the multi interface
By making sure Curl_getconnectinfo() uses the correct connection cache
to find the last connection.
2015-03-23 22:46:58 +01:00
Daniel Stenberg
9395999543 checksrc: use space after comma 2015-03-17 13:57:37 +01:00
Jay Satiro
059b3a5770 connect: Fix happy eyeballs logic for IPv4-only builds
Bug: https://github.com/bagder/curl/pull/168

(trynextip)
- Don't try the "other" protocol family unless IPv6 is available. In an
IPv4-only build the other family can only be IPv6 which is unavailable.

This change essentially stops IPv4-only builds from attempting the
"happy eyeballs" secondary parallel connection that is supposed to be
used by the "other" address family.

Prior to this change in IPv4-only builds that secondary parallel
connection attempt could be erroneously used by the same family (IPv4)
which caused a bug where every address after the first for a host could
be tried twice, often in parallel. This change fixes that bug. An
example of the bug is shown below.

Assume MTEST resolves to 3 addresses 127.0.0.2, 127.0.0.3 and 127.0.0.4:

* STATE: INIT => CONNECT handle 0x64f4b0; line 1046 (connection #-5000)
* Rebuilt URL to: http://MTEST/
* Added connection 0. The cache now contains 1 members
* STATE: CONNECT => WAITRESOLVE handle 0x64f4b0; line 1083
(connection #0)
*   Trying 127.0.0.2...
* STATE: WAITRESOLVE => WAITCONNECT handle 0x64f4b0; line 1163
(connection #0)
*   Trying 127.0.0.3...
* connect to 127.0.0.2 port 80 failed: Connection refused
*   Trying 127.0.0.3...
* connect to 127.0.0.3 port 80 failed: Connection refused
*   Trying 127.0.0.4...
* connect to 127.0.0.3 port 80 failed: Connection refused
*   Trying 127.0.0.4...
* connect to 127.0.0.4 port 80 failed: Connection refused
* connect to 127.0.0.4 port 80 failed: Connection refused
* Failed to connect to MTEST port 80: Connection refused
* Closing connection 0
* The cache now contains 0 members
* Expire cleared
curl: (7) Failed to connect to MTEST port 80: Connection refused

The bug was born in commit bagder/curl@2d435c7.
2015-03-16 12:07:59 +01:00
Frank Meier
9063a7f853 closesocket: call multi socket cb on close even with custom close
In function Curl_closesocket() in connect.c the call to
Curl_multi_closed() was wrongly omitted if a socket close function
(CURLOPT_CLOSESOCKETFUNCTION) is registered.

That would lead to not removing the socket from the internal hash table
and not calling the multi socket callback appropriately.

Bug: http://curl.haxx.se/bug/view.cgi?id=1493
2015-03-15 13:26:03 +01:00
Daniel Stenberg
9da14a96ab conncontrol: only log changes to the connection bit 2015-03-07 19:18:49 +01:00
Daniel Stenberg
df5578a7a3 mprintf.h: remove #ifdef CURLDEBUG
... and as a consequence, introduce curl_printf.h with that re-define
magic instead and make all libcurl code use that instead.
2015-03-03 12:36:18 +01:00
Kamil Dudka
e08a12dab1 connect: wait for IPv4 connection attempts
... even if the last IPv6 connection attempt has failed.

Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1187531#c4
2015-02-23 13:32:28 +01:00
Kamil Dudka
92835ca5d8 connect: avoid skipping an IPv4 address
... in case the protocol versions are mixed in a DNS response
(IPv6 -> IPv4 -> IPv6).

Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1187531#c3
2015-02-23 13:31:01 +01:00
Daniel Stenberg
960b04e137 ipv6: enclose AF_INET6 uses with proper #ifdefs for ipv6
Reported-by: Chris Young
2015-01-20 09:03:55 +01:00
Steve Holme
151ae59436 code/docs: Use correct case for IPv4 and IPv6
For consistency, as we seem to have a bit of a mixed bag, changed all
instances of ipv4 and ipv6 in comments and documentations to use the
correct case.
2014-12-27 11:31:55 +00:00
Patrick Monnerat
9081014c2c IPV6: address scope != scope id
There was a confusion between these: this commit tries to disambiguate them.
- Scope can be computed from the address itself.
- Scope id is scope dependent: it is currently defined as 1-based local
  interface index for link-local scoped addresses, and as a site index(?) for
  (obsolete) site-local addresses. Linux only supports it for link-local
  addresses.
The URL parser properly parses a scope id as an interface index, but stores it
in a field named "scope": confusion. The field has been renamed into "scope_id".
Curl_if2ip() used the scope id as it was a scope. This caused failures
to bind to an interface.
Scope is now computed from the addresses and Curl_if2ip() matches them.
If redundantly specified in the URL, scope id is check for mismatch with
the interface index.

This commit should fix SF bug #1451.
2014-12-16 13:52:06 +01:00
Patrick Monnerat
759d049ae8 connect: singleipconnect(): properly try other address families after failure 2014-12-16 13:52:06 +01:00
Daniel Stenberg
9730c9fb70 updateconninfo: clear destination struct before getsockname()
Otherwise we may read uninitialized bytes later in the unix-domain
sockets case.
2014-12-04 02:52:19 +01:00
Peter Wu
aba5888f6b lib/connect: restrict IP/TCP options to said sockets
This patch prepares for adding UNIX domain sockets support.

TCP_NODELAY and TCP_KEEPALIVE are specific to TCP/IP sockets, so do not
apply these to other socket types. bindlocal only works for IP sockets
(independent of TCP/UDP), so filter that out too for other types.

Signed-off-by: Peter Wu <peter@lekensteyn.nl>
2014-11-30 23:21:14 +01:00
Jon Spencer
2933698677 multi: inform about closed sockets before they are closed
When the connection code decides to close a socket it informs the multi
system via the Curl_multi_closed function. The multi system may, in
turn, invoke the CURLMOPT_SOCKETFUNCTION function with
CURL_POLL_REMOVE. This happens after the socket has already been
closed. Reorder the code so that CURL_POLL_REMOVE is called before the
socket is closed.
2014-11-19 13:22:07 +01:00
Carlo Wood
013d5c18c3 debug: added new connection cache output, plus fixups
Debug output 'typo' fix.

Don't print an extra "0x" in
  * Pipe broke: handle 0x0x2546d88, url = /

Add debug output.
Print the number of connections in the connection cache when
  adding one, and not only when one is removed.

Fix typos in comments.
2014-11-18 23:02:40 +01:00
Steve Holme
43da5b2066 connect.c: Fixed compilation warning when no verbose string support
warning: unused parameter 'reason'
2014-11-16 18:21:12 +00:00
Steve Holme
befbc8f56b code cleanup: Use 'CURLcode result' 2014-10-30 23:14:45 +00:00
Steve Holme
085081fc6e code cleanup: We prefer 'CURLcode result' 2014-10-28 22:45:32 +00:00
Daniel Stenberg
0eb3d15ccb code cleanup: we prefer 'CURLcode result'
... for the local variable name in functions holding the return
code. Using the same name universally makes code easier to read and
follow.

Also, unify code for checking for CURLcode errors with:

 if(result) or if(!result)

instead of

 if(result == CURLE_OK), if(CURLE_OK == result) or if(result != CURLE_OK)
2014-10-24 08:23:19 +02:00
Daniel Stenberg
628290b5e6 cleanups: reduce variable scope
cppcheck pointed these out.
2014-10-14 09:44:06 +02:00
Daniel Stenberg
c2d5f2ef98 singleipconnect: remove dead assignment never used
cppcheck pointed this out.
2014-10-14 09:16:28 +02:00
Daniel Stenberg
d94717e099 nonblock: call with (void) to show we ignore the return code
Coverity pointed out several of these.
2014-10-04 15:14:27 +02:00
Daniel Stenberg
cacdc27f52 low-speed-limit: avoid timeout flood
Introducing Curl_expire_latest(). To be used when we the code flow only
wants to get called at a later time that is "no later than X" so that
something can be checked (and another timeout be added).

The low-speed logic for example could easily be made to set very many
expire timeouts if it would be called faster or sooner than what it had
set its own timer and this goes for a few other timers too that aren't
explictiy checked for timer expiration in the code.

If there's no condition the code that says if(time-passed >= TIME), then
Curl_expire_latest() is preferred to Curl_expire().

If there exists such a condition, it is on the other hand important that
Curl_expire() is used and not the other.

Bug: http://curl.haxx.se/mail/lib-2014-06/0235.html
Reported-by: Florian Weimer
2014-08-31 23:50:01 +02:00
Haris Okanovic
da23624b57 win32: Fixed WinSock 2 #if
A conditionally compiled block in connect.c references WinSock 2
symbols, but used `#ifdef HAVE_WINSOCK_H` instead of `#ifdef
HAVE_WINSOCK2_H`.

Bug: http://curl.haxx.se/mail/lib-2014-08/0155.html
2014-08-21 00:22:33 +02:00
Marcel Raad
8ffe6f5b57 compiler warnings: potentially uninitialized variables
... pointed out by MSVC2013

Bug: http://curl.haxx.se/bug/view.cgi?id=1391
2014-07-05 01:42:10 +02:00
Daniel Stenberg
df13f8e8c2 bits.close: introduce connection close tracking
Make all code use connclose() and connkeep() when changing the "close
state" for a connection. These two macros take a string argument with an
explanation, and debug builds of curl will include that in the debug
output. Helps tracking connection re-use/close issues.
2014-05-22 00:34:10 +02:00
Daniel Stenberg
84bd19ffd4 timers: fix timer regression involving redirects / reconnects
In commit 0b3750b5c2 (released in 7.36.0) we fixed a timeout issue
but instead broke the timings.

To fix this, I introduce a new timestamp to use for the timeouts and
restored the previous timestamp and timestamp position so that the old
timer functionality is restored.

In addition to that, that change also broke connection timeouts for when
more than one connect was used (as it would then count the total time
from the first connect and not for the most recent one). Now
Curl_timeleft() has been modified so that it checks against different
start times depending on which timeout it checks.

Test 1303 is updated accordingly.

Bug: http://curl.haxx.se/mail/lib-2014-05/0147.html
Reported-by: Ryan Braud
2014-05-15 21:28:19 +02:00
Marc Hoersken
7296fc9e7e connect.c: fix multiple possible dereferences of null pointers
In case the first address in the tempaddr array is NULL,
the code would previously dereference an unchecked null pointer.
2014-04-18 23:56:54 +02:00
Daniel Stenberg
930b81387b trynextip: don't store 'ai' on failed connects...
It leads to the "next family" tries starting from the wrong point and thus
fails!

Bug: http://curl.haxx.se/bug/view.cgi?id=1337
Reported-by: ricker
2014-03-19 16:34:12 +01:00
Steve Holme
e35ffda0b3 win32: Added additional preprocessor check for Version Helper API
A follow up patch to commit d2671340a6 as _WIN32_WINNT_WIN2K and
_WIN32_WINNT_WIN2K may not be defined on all systems.
2014-01-18 11:42:48 +00:00
Steve Holme
d2671340a6 win32: Corrected the preprocessor check for Version Helper API
Following some auto build failures after commit c7a76bb056 changed
the preprocessor check to use _WIN32_WINNT.
2014-01-17 22:36:41 +00:00
Daniel Stenberg
7f807f394f connect.c:942:84: warning: Longer than 79 columns 2014-01-16 00:27:16 +01:00
Steve Holme
9520c62049 connect.c: Corrected version compare in commit c7a76bb056 2014-01-15 23:22:53 +00:00
Steve Holme
c7a76bb056 win32: Fixed use of deprecated function 'GetVersionInfoEx' for VC12
Starting with Visual Studio 2013 (VC12) and Windows 8.1 the
GetVersionInfoEx() function has been marked as deprecated and it's
return value atered. Updated connect.c and curl_sspi.c to use
VerifyVersionInfo() where possible, which has been available since
Windows 2000.
2014-01-15 20:21:01 +00:00
Daniel Stenberg
3b183df9cc multi: remove MULTI_TIMEOUT_INACCURACY
With the recently added timeout "reminder" functionality, there's no
reason left for us to execute timeout code before the time is
ripe. Simplifies the handling too.

This will make the *TIMEOUT and *CONNECTTIMEOUT options more accurate
again, which probably is most important when the *_MS versions are used.

In multi_socket, make sure to update 'now' after having handled activity
on a socket.
2014-01-12 00:11:53 +01:00
Daniel Stenberg
28933f9d30 Curl_updateconninfo: don't do anything for UDP "connections"
getpeername() doesn't work for UDP sockets since they're not connected

Reported-by: Priyanka Shah
Bug: http://curl.haxx.se/mail/archive-2014-01/0016.html
2014-01-08 23:43:45 +01:00
Daniel Stenberg
2d435c7fb5 trynextip: fix build for non-IPV6 capable systems
AF_INET6 may not exist then

Patched-by: Iida Yosiaki
Bug: http://curl.haxx.se/bug/view.cgi?id=1322
2014-01-08 09:41:38 +01:00
Steve Holme
610a55388b connect.c: Fixed compilation warning
warning: 'res' may be used uninitialized in this function
2013-12-28 19:44:07 +00:00
Björn Stenberg
4e1ece2e44 connect: Try all addresses in first connection attempt
Fixes a bug when all addresses in the first family fail immediately, due
to "Network unreachable" for example, curl would hang and never try the
next address family.

Iterate through all address families when to trying establish the first
connection attempt.

Bug: http://curl.haxx.se/bug/view.cgi?id=1315
Reported-by: Michal Górny and Anthony G. Basile
2013-12-28 13:17:56 +00:00
Daniel Stenberg
11e8066ef9 vtls: renamed sslgen.[ch] to vtls.[ch] 2013-12-20 17:12:42 +01:00
Daniel Stenberg
eccf4fb7ee vtls: created subdir, moved sslgen.[ch] there, updated all include lines 2013-12-20 17:12:42 +01:00
Daniel Stenberg
1cf71bd76e Curl_is_connected: use proxy name in error message when proxy is used
(bug introduced in 255826c4, never present in a release)

Reported-by: Dima Tisnek
Bug: http://curl.haxx.se/mail/lib-2013-12/0006.html
2013-12-04 22:51:37 +01:00
Björn Stenberg
b2a55c8106 connect: Try next ip directly after immediate connect fail
This fixes a rare Happy Eyeballs bug where if the first IP family runs
out of addresses before the second-family-timer fires, and the second
IP family's first connect fails immediately, no further IPs of the
second family are attempted.
2013-11-27 22:26:43 +01:00
Steve Holme
2c7a5578e1 connect: Close open but unconnected socket in singleipconnect()
singleipconnect() could return the file descriptor of an open socket
even though the function returned a CURLE_COULDNT_CONNECT error code
from commit ed1662c374 and 02fbc26d59.

This could cause tests 19, 704 and 1233 to fail on FreeBSD, AIX and
Solaris.
2013-11-17 00:27:18 +00:00
Steve Holme
786cba1ada connect: Forgot to correct line endings before push in commit ed1662c374 2013-11-14 20:43:15 +00:00
Björn Stenberg
ed1662c374 connect: Return the socket descriptor even on fail
singleipconnect() did not return the open socket descriptor on some
errors, thereby sometimes causing a socket leak. This patch ensures
the socket is always returned.
2013-11-14 19:56:59 +00:00
Björn Stenberg
e7d77fb3ef connect: Close temporary sockets in conn_free()
The temporary sockets used for Happy Eyeballs were not closed properly,
if curl exited prematurely, which this patch fixes.
2013-11-10 22:49:56 +00:00
Björn Stenberg
02fbc26d59 connect: Add connection delay to Happy Eyeballs.
This patch adds a 200ms delay between the first and second address
family socket connection attempts.

It also iterates over IP addresses in the order returned by the
system, meaning most dual-stack systems will try IPv6 first.

Additionally, it refactors the connect code, removing most code that
handled synchronous connects. Since all sockets are now non-blocking,
the logic can be made simpler.
2013-11-04 22:38:19 +01:00
Steve Holme
f77d9b6584 connect.c: Code policing on commit 5094bb53f4
No need for a rhs condition on a bitwise compare.
2013-11-03 19:53:58 +00:00