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Commit Graph

24 Commits

Author SHA1 Message Date
Daniel Stenberg
01f05d0c75 return code cleanup: build, init and run-time errors
Stop the abuse of CURLE_FAILED_INIT as return code for things not being
init related by introducing two new return codes:

CURLE_NOT_BUILT_IN and CURLE_UNKNOWN_OPTION

CURLE_NOT_BUILT_IN replaces return code 4 that has been obsoleted for
several years. It is used for returning error when something is
attempted to be used but the feature/option was not enabled or
explictitly disabled at build-time. Getting this error mostly means that
libcurl needs to be rebuilt.

CURLE_FAILED_INIT is now saved and used strictly for init
failures. Getting this problem means something went seriously wrong,
like a resource shortage or similar.

CURLE_UNKNOWN_OPTION is the option formerly known as
CURLE_UNKNOWN_TELNET_OPTION (and the old name is still present,
separately defined to be removed in a very distant future). This error
code is meant to be used to return when an option is given to libcurl
that isn't known. This problem would mostly indicate a problem in the
program that uses libcurl.
2011-04-05 15:14:02 +02:00
Daniel Stenberg
fdaa8da75d sslgen: define Curl_ssl_connect_nonblocking for non-SSL
The non-blocking connect improvement for IMAP showed that we didn't
properly define the Curl_ssl_connect_nonblocking function for non-SSL
builds.

Reported by: Tor Arntsen
2011-03-14 11:13:12 +01:00
Howard Chu
d64bd82bdc sendrecv: split the I/O handling into private handler
Howard Chu brought the bulk work of this patch that properly
moves out the sending and recving of data to the parts of the
code that are properly responsible for the various ways of doing
so.

Daniel Stenberg assisted with polishing a few bits and fixed some
minor flaws in the original patch.

Another upside of this patch is that we now abuse CURLcodes less
with the "magic" -1 return codes and instead use CURLE_AGAIN more
consistently.
2010-05-07 15:05:34 +02:00
Ben Greear
e6858e267b ssl: Fix build when SSL isn't enabled
Signed-off-by: Ben Greear <greearb@candelatech.com>
2010-04-06 01:44:28 +02:00
Kamil Dudka
ff8711135e refactorize interface of Curl_ssl_recv/Curl_ssl_send 2010-04-04 23:37:18 +02:00
Daniel Stenberg
2309b4e330 remove the CVSish $Id$ lines 2010-03-24 11:02:54 +01:00
Daniel Stenberg
a16cca7680 - Michael Smith posted bug report #2786255
(http://curl.haxx.se/bug/view.cgi?id=2786255) with a patch, identifying how
  libcurl did not deal with SSL session ids properly if the server rejected a
  re-use of one. Starting now, it will forget the rejected one and remember
  the new. This change was for OpenSSL only, it is likely that other SSL lib
  code needs similar fixes.
2009-05-04 21:57:14 +00:00
Daniel Stenberg
4cbc0f6c2e - Rainer Canavan filed bug #2255627
(http://curl.haxx.se/bug/view.cgi?id=2255627) which pointed out that a
  program using libcurl's multi interface to download a HTTPS page with a
  libcurl built powered by OpenSSL, would easily get silly and instead hand
  over SSL details as data instead of the actual HTTP headers and body. This
  happened because libcurl would consider the connection handshake done too
  early. This problem was introduced at September 22nd 2008 with my fix of the
  bug #2107377

  The correct fix is now instead done within the GnuTLS-handling code, as both
  the OpenSSL and the NSS code already deal with this situation in similar
  fashion. I added test case 560 in an attempt to verify this fix, but
  unfortunately it didn't trigger it even before this fix!
2008-11-11 22:19:27 +00:00
Dan Fandrich
035a2e5479 A few prototypes shouldn't be defined if SSL is disabled. 2008-10-20 23:07:48 +00:00
Daniel Stenberg
4c9768565e - Introducing CURLOPT_CERTINFO and the corresponding CURLINFO_CERTINFO. By
enabling this feature with CURLOPT_CERTINFO for a request using SSL (HTTPS
  or FTPS), libcurl will gather lots of server certificate info and that info
  can then get extracted by a client after the request has completed with
  curl_easy_getinfo()'s CURLINFO_CERTINFO option. Linus Nielsen Feltzing
  helped me test and smoothen out this feature.

  Unfortunately, this feature currently only works with libcurl built to use
  OpenSSL.

  This feature was sponsored by networking4all.com - thanks!
2008-09-05 14:29:21 +00:00
Yang Tse
7820391cb9 fix compiler warning: empty body in an if-statement 2008-07-05 03:31:41 +00:00
Daniel Stenberg
04d5c8fb77 - I did a cleanup of the internal generic SSL layer and how the various SSL
libraries are supported. Starting now, each underlying SSL library support
  code does a set of defines for the 16 functions the generic layer (sslgen.c)
  uses (all these new function defines use the prefix "curlssl_"). This
  greatly simplified the generic layer in readability by involving much less
  #ifdefs and other preprocessor stuff and should make it easier for people to
  make libcurl work with new SSL libraries.

  Hopefully I can later on document these 16 functions somewhat as well.

  I also made most of the internal SSL-dependent functions (using Curl_ssl_
  prefix) #defined to nothing when no SSL support is requested - previously
  they would unnecessarily call mostly empty functions.
2008-06-11 17:01:58 +00:00
Michal Marek
e2b82b4325 - Make Curl_write and it's callees accept a const pointer, in preparation
of tetetest's patch for curl_easy_send()
2008-05-09 11:27:54 +00:00
Dan Fandrich
8cf0814a14 Fixed some minor type mismatches and missing consts mainly found by splint. 2007-08-27 06:31:28 +00:00
Daniel Stenberg
f1fa7b8ba4 Bug report #1759542 (http://curl.haxx.se/bug/view.cgi?id=1759542). A bad use
of a socket after it has been closed, when the FTP-SSL data connection is taken
down.
2007-07-29 12:54:05 +00:00
Daniel Stenberg
2b280bcc69 fix compiler warnings for SSL-disabled builds 2007-01-25 21:00:03 +00:00
Daniel Stenberg
10a13eba72 fix non-SSL builds again 2007-01-25 11:09:56 +00:00
Daniel Stenberg
3239f059b8 moved the SSL pending function to the proper place and name 2007-01-24 17:19:08 +00:00
Daniel Stenberg
4750e6f3c5 - Linus Nielsen Feltzing introduced the --ftp-ssl-ccc command line option to
curl that uses the new CURLOPT_FTP_SSL_CCC option in libcurl. If enabled, it
  will make libcurl shutdown SSL/TLS after the authentication is done on a
  FTP-SSL operation.
2007-01-05 23:11:14 +00:00
Daniel Stenberg
be0d17e812 cleaned up Curl_write() and the sub functions it uses for various protocols.
They all now return ssize_t to Curl_write().

Unfortunately, Curl_read() is in a sorrier state but it too would benefit from
a similar cleanup.
2006-11-11 21:34:43 +00:00
Yang Tse
772a985dc3 Update copyright year, since the file has been modified 2006-10-27 03:47:57 +00:00
Daniel Stenberg
c9c5ce2365 David McCreedy provided a fix for CURLINFO_LASTSOCKET that does extended
checks on the to-be-returned socket to make sure it truly seems to be alive
and well. For SSL connection it (only) uses OpenSSL functions.
2006-05-10 22:17:42 +00:00
Daniel Stenberg
83367f67de Xavier Bouchoux made the SSL connection non-blocking for the multi interface
(when using OpenSSL).
2006-03-21 21:54:44 +00:00
Daniel Stenberg
6e61939382 GnuTLS support added. There's now a "generic" SSL layer that we use all over
internally, with code provided by sslgen.c. All SSL-layer-specific code is
then written in ssluse.c (for OpenSSL) and gtls.c (for GnuTLS).

As far as possible, internals should not need to know what SSL layer that is
in use. Building with GnuTLS currently makes two test cases fail.

TODO.gnutls contains a few known outstanding issues for the GnuTLS support.

GnuTLS support is enabled with configure --with-gnutls
2005-04-07 15:27:13 +00:00