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2015-10-15fread_func: move callback pointer from set to state structDaniel Stenberg
... and assign it from the set.fread_func_set pointer in the Curl_init_CONNECT function. This A) avoids that we have code that assigns fields in the 'set' struct (which we always knew was bad) and more importantly B) it makes it impossibly to accidentally leave the wrong value for when the handle is re-used etc. Introducing a state-init functionality in multi.c, so that we can set a specific function to get called when we enter a state. The Curl_init_CONNECT is thus called when switching to the CONNECT state. Bug: https://github.com/bagder/curl/issues/346 Closes #346
2015-09-08FTP: do_more: add check for wait_data_conn in upload caseDaniel Stenberg
In some timing-dependnt cases when a 4xx response immediately followed after a 150 when a STOR was issued, this function would wrongly return 'complete == true' while 'wait_data_conn' was still set. Closes #405 Reported-by: Patricia Muscalu
2015-08-21ftp: clear the do_more bit when the server has connectedDaniel Stenberg
The multi state machine would otherwise go into the DO_MORE state after DO, even for the case when the FTP state machine had already performed those duties, which caused libcurl to get stuck in that state and fail miserably. This occured for for active ftp uploads. Reported-by: Patricia Muscalu
2015-06-17FTP: do the HTTP CONNECT for data connection blockingDaniel Stenberg
** WORK-AROUND ** The introduced non-blocking general behaviour for Curl_proxyCONNECT() didn't work for the data connection establishment unless it was very fast. The newly introduced function argument makes it operate in a more blocking manner, more like it used to work in the past. This blocking approach is only used when the FTP data connecting through HTTP proxy. Blocking like this is bad. A better fix would make it work more asynchronously. Bug: https://github.com/bagder/curl/issues/278
2015-05-20read_callback: move to SessionHandle from connectdataDaniel Stenberg
With many easy handles using the same connection for multiplexing, it is important we store and keep the transfer-oriented stuff in the SessionHandle so that callbacks and callback data work fine even when many easy handles share the same physical connection.
2015-05-08FTP: fix dangling conn->ip_addr dereference on verbose EPSV.Patrick Monnerat
2015-05-08FTP: Make EPSV use the control IP address rather than the original host.Patrick Monnerat
This ensures an alternate address is not used. Does not apply to proxy tunnel.
2015-03-17checksrc: use space after commaDaniel Stenberg
2015-03-17checksrc: use space before paren in "return (expr);"Daniel Stenberg
2015-03-16free: instead of Curl_safefree()Daniel Stenberg
Since we just started make use of free(NULL) in order to simplify code, this change takes it a step further and: - converts lots of Curl_safefree() calls to good old free() - makes Curl_safefree() not check the pointer before free() The (new) rule of thumb is: if you really want a function call that frees a pointer and then assigns it to NULL, then use Curl_safefree(). But we will prefer just using free() from now on.
2015-03-16Bug #149: Deletion of unnecessary checks before calls of the function "free"Markus Elfring
The function "free" is documented in the way that no action shall occur for a passed null pointer. It is therefore not needed that a function caller repeats a corresponding check. http://stackoverflow.com/questions/18775608/free-a-null-pointer-anyway-or-check-first This issue was fixed by using the software Coccinelle 1.0.0-rc24. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
2015-03-03mprintf.h: remove #ifdef CURLDEBUGDaniel Stenberg
... and as a consequence, introduce curl_printf.h with that re-define magic instead and make all libcurl code use that instead.
2015-02-11ftp: accept all 2xx responses to the PORT commandPatrick Monnerat
2015-01-08FTP: if EPSV fails on IPV6 connections, bail outDaniel Stenberg
... instead of trying PASV, since PASV can't work with IPv6. Reported-by: Vojtěch Král
2015-01-08FTP: fix IPv6 host using link-local addressDaniel Stenberg
... and make sure we can connect the data connection to a host name that is longer than 48 bytes. Also simplifies the code somewhat by re-using the original host name more, as it is likely still in the DNS cache. Original-Patch-by: Vojtěch Král Bug: http://curl.haxx.se/bug/view.cgi?id=1468
2014-12-27code/docs: Use correct case for IPv4 and IPv6Steve Holme
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.
2014-12-16IPV6: address scope != scope idPatrick Monnerat
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.
2014-12-13ftp.c: Fixed compilation warning when no verbose string supportSteve Holme
ftp.c:819: warning: unused parameter 'lineno'
2014-12-06ftp.c: Fixed compilation warnings when proxy support disabledSteve Holme
ftp.c:1827 warning: unused parameter 'newhost' ftp.c:1827 warning: unused parameter 'newport'
2014-10-24code cleanup: we prefer 'CURLcode result'Daniel Stenberg
... 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)
2014-10-04nonblock: call with (void) to show we ignore the return codeDaniel Stenberg
Coverity pointed out several of these.
2014-09-07Ensure progress.size_dl/progress.size_ul are always >= 0Brandon Casey
Historically the default "unknown" value for progress.size_dl and progress.size_ul has been zero, since these values are initialized implicitly by the calloc that allocates the curl handle that these variables are a part of. Users of curl that install progress callbacks may expect these values to always be >= 0. Currently it is possible for progress.size_dl and progress.size_ul to by set to a value of -1, if Curl_pgrsSetDownloadSize() or Curl_pgrsSetUploadSize() are passed a "size" of -1 (which a few places currently do, and a following patch will add more). So lets update Curl_pgrsSetDownloadSize() and Curl_pgrsSetUploadSize() so they make sure that these variables always contain a value that is >= 0. Updates test579 and test599. Signed-off-by: Brandon Casey <drafnel@gmail.com>
2014-05-22bits.close: introduce connection close trackingDaniel Stenberg
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.
2014-04-26INFILESIZE: fields in UserDefined must not be changed run-timeDaniel Stenberg
set.infilesize in this case was modified in several places, which could lead to repeated requests using the same handle to get unintendent/wrong consequences based on what the previous request did!
2014-04-23handler: make 'protocol' always specified as a single bitDaniel Stenberg
This makes the findprotocol() function work as intended so that libcurl can properly be restricted to not support HTTP while still supporting HTTPS - since the HTTPS handler previously set both the HTTP and HTTPS bits in the protocol field. This fixes --proto and --proto-redir for most SSL protocols. This is done by adding a few new convenience defines that groups HTTP and HTTPS, FTP and FTPS etc that should then be used when the code wants to check for both protocols at once. PROTO_FAMILY_[protocol] style. Bug: https://github.com/bagder/curl/pull/97 Reported-by: drizzt
2014-04-03ftp: in passive data connect wait for happy eyeballs socketsDaniel Stenberg
When doing passive FTP, the multi state function needs to extract and use the happy eyeballs sockets to wait for to check for completion! Bug: http://curl.haxx.se/mail/lib-2014-02/0135.html (ruined) Reported-by: Alan
2013-12-31mprintf: Replaced internal usage of FORMAT_OFF_T and FORMAT_OFF_TUSteve Holme
Following commit 0aafd77fa4c6f2, replaced the internal usage of FORMAT_OFF_T and FORMAT_OFF_TU with the external versions that we expect API programmers to use. This negates the need for separate definitions which were subtly different under different platforms/compilers.
2013-12-20vtls: renamed sslgen.[ch] to vtls.[ch]Daniel Stenberg
2013-12-20vtls: created subdir, moved sslgen.[ch] there, updated all include linesDaniel Stenberg
2013-11-10connect: Close temporary sockets in conn_free()Björn Stenberg
The temporary sockets used for Happy Eyeballs were not closed properly, if curl exited prematurely, which this patch fixes.
2013-11-04connect: Add connection delay to Happy Eyeballs.Björn Stenberg
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.
2013-10-27Add "Happy Eyeballs" for IPv4/IPv6.Björn Stenberg
This patch invokes two socket connect()s nearly simultaneously, and the socket that is first connected "wins" and is subsequently used for the connection. The other is terminated. There is a very slight IPv4 preference, in that if both sockets connect simultaneously IPv4 is checked first and thus will win.
2013-10-27ftp: Fixed compiler warningSteve Holme
warning: 'result' may be used uninitialized in this function
2013-10-26FTP: make the data connection work when going through proxyDaniel Stenberg
This is a regression since the switch to always-multi internally c43127414d89c. Test 1316 was modified since we now clearly call the Curl_client_write() function when doing the LIST transfer part and then the handler->protocol says FTP and ftpc.transfertype is 'A' which implies text converting even though that the response is initially a HTTP CONNECT response in this case.
2013-09-25ftp.c: Fixed compilation warningSteve Holme
There is an implicit conversion from "unsigned long" to "long"
2013-08-29FTP: fix getsock during DO_MORE stateDaniel Stenberg
... when doing upload it would return the wrong values at times. This commit attempts to cleanup the mess. Bug: http://curl.haxx.se/mail/lib-2013-08/0109.html Reported-by: Mike Mio
2013-08-26security.h: rename to curl_sec.h to avoid name collisionDaniel Stenberg
I brought back security.h in commit bb5529331334e. As we actually already found out back in 2005 in commit 62970da675249, the file name security.h causes problems so I renamed it curl_sec.h instead.
2013-08-25FTP: remove krb4 supportDaniel Stenberg
We've announced this pending removal for a long time and we've repeatedly asked if anyone would care or if anyone objects. Nobody has objected. It has probably not even been working for a good while since nobody has tested/used this code recently. The stuff in krb4.h that was generic enough to be used by other sources is now present in security.h
2013-08-14ftp: convert state names to a global arrayDaniel Stenberg
... just to make them easier to print in debug ouputs while debugging. They are still within #ifdef [debugbuild].
2013-08-14ftp_domore_getsock: when passive mode, the second conn is already thereDaniel Stenberg
This makes the socket callback get called with the proper bitmask as otherwise the application could be left hanging waiting for reading on an upload connection! Bug: http://curl.haxx.se/mail/lib-2013-08/0043.html Reported-by: Bill Doyle
2013-08-12SessionHandle: the protocol specific pointer is now a void *Daniel Stenberg
All protocol handler structs are now opaque (void *) in the SessionHandle struct and moved in the request-specific sub-struct 'SingleRequest'. The intension is to keep the protocol specific knowledge in their own dedicated source files [protocol].c etc. There's some "leakage" where this policy is violated, to be addressed at a later point in time.
2013-08-12urldata: clean up the use of the protocol specific structsDaniel Stenberg
1 - always allocate the struct in protocol->setup_connection. Some protocol handlers had to get this function added. 2 - always free at the end of a request. This is also an attempt to keep less memory in the handle after it is completed.
2013-08-09comments: remove old and wrong multi/easy interface statementsDaniel Stenberg
2013-08-08FTP: renamed several local functionsDaniel Stenberg
The previous naming scheme ftp_state_post_XXXX() wasn't really helpful as it wasn't always immediately after 'xxxx' and it wasn't easy to understand what it does based on such a name. This new one is instead ftp_state_yyyy() where yyyy describes what it does or sends.
2013-08-06FTP: when EPSV gets a 229 but fails to connect, retry with PASVDaniel Stenberg
This is a regression as this logic used to work. It isn't clear when it broke, but I'm assuming in 7.28.0 when we went all-multi internally. This likely never worked with the multi interface. As the failed connection is detected once the multi state has reached DO_MORE, the Curl_do_more() function was now expanded somewhat so that the ftp_do_more() function can request to go "back" to the previous state when it makes another attempt - using PASV. Added test case 1233 to verify this fix. It has the little issue that it assumes no service is listening/accepting connections on port 1... Reported-by: byte_bucket in the #curl IRC channel
2013-07-24string formatting: fix too many arguments for formatYang Tse
2013-07-24string formatting: fix 25+ printf-style format stringsYang Tse
2013-07-19ftp_do_more: consider DO_MORE complete when server connects backDaniel Stenberg
In the case of an active connection when ftp_do_more() detects that the server has connected back, it must make sure to mark it as complete so that the multi_runsingle() function will detect this and move on to the next state. Bug: http://curl.haxx.se/mail/lib-2013-07/0115.html Reported-by: Clemens Gruber
2013-04-26ftp_state_pasv_resp: connect through proxy also when set by envDaniel Stenberg
When connecting back to an FTP server after having sent PASV/EPSV, libcurl sometimes didn't use the proxy properly even though the proxy was used for the initial connect. The function wrongly checked for the CURLOPT_PROXY variable to be set, which made it act wrongly if the proxy information was set with an environment variable. Added test case 711 to verify (based on 707 which uses --socks5). Also added test712 to verify another variation of setting the proxy: with --proxy socks5:// Bug: http://curl.haxx.se/bug/view.cgi?id=1218 Reported-by: Zekun Ni
2013-04-12FTP: handle a 230 welcome responseDaniel Stenberg
...instead of the 220 we otherwise expect. Made the ftpserver.pl support sending a custom "welcome" and then created test 1219 to verify this fix with such a 230 welcome. Bug: http://curl.haxx.se/mail/lib-2013-02/0102.html Reported by: Anders Havn