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2009-08-18Merge branch 'rc/maint-http-fix'Libravatar Junio C Hamano1-1/+3
* rc/maint-http-fix: http.c: don't assume that urls don't end with slash
2009-08-18http.c: don't assume that urls don't end with slashLibravatar Tay Ray Chuan1-1/+3
Make append_remote_object_url() (and by implication, get_remote_object_url) use end_url_with_slash() to ensure that the url ends with a slash. Previously, they assumed that the url did not end with a slash and as a result appended a slash, sometimes errorneously. This fixes an issue introduced in 5424bc5 ("http*: add helper methods for fetching objects (loose)"), where the append_remote_object_url() implementation in http-push.c, which assumed that urls end with a slash, was replaced by another one in http.c, which assumed urls did not end with a slash. The above issue was raised by Thomas Schlichter: http://marc.info/?l=git&m=125043105231327 Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Tested-by: Thomas Schlichter <thomas.schlichter@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-10Check return value of ftruncate call in http.cLibravatar Jeff Lasslett1-1/+5
In new_http_object_request(), check ftruncate() call return value and handle possible errors. Signed-off-by: Jeff Lasslett <jeff.lasslett@gmail.com> Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-10http.c: replace usage of temporary variable for urlsLibravatar Tay Ray Chuan1-9/+6
Use preq->url in new_http_pack_request and freq->url in new_http_object_request when calling curl_setopt(CURLOPT_URL), instead of using an intermediate variable, 'url'. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-10http.c: free preq when abortingLibravatar Tay Ray Chuan1-0/+1
Free preq in new_http_pack_request when aborting. preq was allocated before jumping to the 'abort' label so this is safe. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-09Merge branch 'ml/http'Libravatar Junio C Hamano1-1/+47
* ml/http: http.c: add http.sslCertPasswordProtected option http.c: prompt for SSL client certificate password Conflicts: http.c
2009-06-18http.c: add http.sslCertPasswordProtected optionLibravatar Mark Lodato1-1/+8
Add a configuration option, http.sslCertPasswordProtected, and associated environment variable, GIT_SSL_CERT_PASSWORD_PROTECTED, to enable SSL client certificate password prompt from within git. If this option is false and if the environment variable does not exist, git falls back to OpenSSL's prompts (as in earlier versions of git). The environment variable may only be used to enable, not to disable git's password prompt. This behavior mimics GIT_NO_VERIFY; the mere existence of the variable is all that is checked. Signed-off-by: Mark Lodato <lodatom@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-18http.c: prompt for SSL client certificate passwordLibravatar Mark Lodato1-1/+40
If an SSL client certificate is enabled (via http.sslcert or GIT_SSL_CERT), prompt for the certificate password rather than defaulting to OpenSSL's password prompt. This causes the prompt to only appear once each run. Previously, OpenSSL prompted the user *many* times, causing git to be unusable over HTTPS with client-side certificates. Note that the password is stored in memory in the clear while the program is running. This may be a security problem if git crashes and core dumps. The user is always prompted, even if the certificate is not encrypted. This should be fine; unencrypted certificates are rare and a security risk anyway. Signed-off-by: Mark Lodato <lodatom@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-18Merge branch 'maint'Libravatar Junio C Hamano1-4/+4
* maint: http.c: fix compiling with libcurl 7.9.2 import-tars: support symlinks pull, rebase: simplify to use die()
2009-06-18http.c: fix compiling with libcurl 7.9.2Libravatar Mark Lodato1-4/+4
Change the minimimum required libcurl version for the http.sslKey option to 7.9.3. Previously, preprocessor macros checked for >= 7.9.2, which is incorrect because CURLOPT_SSLKEY was introduced in 7.9.3. This now allows git to compile with libcurl 7.9.2. Signed-off-by: Mark Lodato <lodatom@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http*: add helper methods for fetching objects (loose)Libravatar Tay Ray Chuan1-2/+248
The code handling the fetching of loose objects in http-push.c and http-walker.c have been refactored into new methods and a new struct (object_http_request) in http.c. They are not meant to be invoked elsewhere. The new methods in http.c are - new_http_object_request - process_http_object_request - finish_http_object_request - abort_http_object_request - release_http_object_request and the new struct is http_object_request. RANGER_HEADER_SIZE and no_pragma_header is no longer made available outside of http.c, since after the above changes, there are no other instances of usage outside of http.c. Remove members of the transfer_request struct in http-push.c and http-walker.c, including filename, real_sha1 and zret, as they are used no longer used. Move the methods append_remote_object_url() and get_remote_object_url() from http-push.c to http.c. Additionally, get_remote_object_url() is no longer defined only when USE_CURL_MULTI is defined, since non-USE_CURL_MULTI code in http.c uses it (namely, in new_http_object_request()). Refactor code from http-push.c::start_fetch_loose() and http-walker.c::start_object_fetch_request() that deals with the details of coming up with the filename to store the retrieved object, resuming a previously aborted request, and making a new curl request, into a new function, new_http_object_request(). Refactor code from http-walker.c::process_object_request() into the function, process_http_object_request(). Refactor code from http-push.c::finish_request() and http-walker.c::finish_object_request() into a new function, finish_http_object_request(). It returns the result of the move_temp_to_file() invocation. Add a function, release_http_object_request(), which cleans up object request data. http-push.c and http-walker.c invoke this function separately; http-push.c::release_request() and http-walker.c::release_object_request() do not invoke this function. Add a function, abort_http_object_request(), which unlink()s the object file and invokes release_http_object_request(). Update http-walker.c::abort_object_request() to use this. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http*: add helper methods for fetching packsLibravatar Tay Ray Chuan1-0/+106
The code handling the fetching of packs in http-push.c and http-walker.c have been refactored into new methods and a new struct (http_pack_request) in http.c. They are not meant to be invoked elsewhere. The new methods in http.c are - new_http_pack_request - finish_http_pack_request - release_http_pack_request and the new struct is http_pack_request. Add a function, new_http_pack_request(), that deals with the details of coming up with the filename to store the retrieved packfile, resuming a previously aborted request, and making a new curl request. Update http-push.c::start_fetch_packed() and http-walker.c::fetch_pack() to use this. Add a function, finish_http_pack_request(), that deals with renaming the pack, advancing the pack list, and installing the pack. Update http-push.c::finish_request() and http-walker.c::fetch_pack to use this. Update release_request() in http-push.c and http-walker.c to invoke release_http_pack_request() to clean up pack request helper data. The local_stream member of the transfer_request struct in http-push.c has been removed, as the packfile pointer will be managed in the struct http_pack_request. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http: use new http API in fetch_index()Libravatar Tay Ray Chuan1-73/+8
Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http*: add http_get_info_packsLibravatar Tay Ray Chuan1-0/+164
http-push.c and http-walker.c no longer have to use fetch_index or setup_index; they simply need to use http_get_info_packs, a new http method, in their fetch_indices implementations. Move fetch_index() and rename to fetch_pack_index() in http.c; this method is not meant to be used outside of http.c. It invokes end_url_with_slash with base_url; apart from that change, the code is identical. Move setup_index() and rename to fetch_and_setup_pack_index() in http.c; this method is not meant to be used outside of http.c. Do not immediately set ret to 0 in http-walker.c::fetch_indices(); instead do it in the HTTP_MISSING_TARGET case, to make it clear that the HTTP_OK and HTTP_MISSING_TARGET cases both return 0. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http.c::http_fetch_ref(): use the new http APILibravatar Mike Hommey1-25/+8
The error message ("Unable to start request") has been removed, since the http API already prints it. Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http.c: new functions for the http APILibravatar Mike Hommey1-0/+104
The new functions added are: - http_request() (internal function) - http_get_strbuf() - http_get_file() - http_error() http_get_strbuf and http_get_file allow respectively to retrieve contents of an URL to a strbuf or an opened file handle. http_error prints out an error message containing the URL and the curl error (in curl_errorstr). Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http: create function end_url_with_slashLibravatar Tay Ray Chuan1-3/+9
The logic to append a slash to the url if necessary in quote_ref_url (added in 113106e "http.c: use strbuf API in quote_ref_url") has been moved to a new function, end_url_with_slash. The method takes a strbuf, the URL, and the path to be appended to the URL. It first adds the URL to the strbuf. It then appends a slash if the URL does not end with a slash. The check on ref in quote_ref_url for a slash at the beginning has been removed as a result of using end_url_with_slash. This check is not needed, because slashes will be quoted anyway. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06http*: move common variables and macros to http.[ch]Libravatar Tay Ray Chuan1-0/+9
Move RANGE_HEADER_SIZE to http.h. Create no_pragma_header, the curl header list containing the header "Pragma:" in http.[ch]. It is allocated in http_init, and freed in http_cleanup. This replaces the no_pragma_header in http-push.c, and the no_pragma_header member in walker_data in http-walker.c. Create http_is_verbose. It is to be used by methods in http.c, and is modified at the entry points of http.c's users, namely http-push.c (when parsing options) and http-walker.c (in get_http_walker). Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-02Allow curl to rewind the read buffersLibravatar Martin Storsjö1-0/+19
When using multi-pass authentication methods, the curl library may need to rewind the read buffers (depending on how much already has been fed to the server) used for providing data to HTTP PUT, POST or PROPFIND, and in order to allow the library to do so, we need to tell it how by providing either an ioctl callback or a seek callback. This patch adds an ioctl callback, which should be usable on older curl versions (since 7.12.3) than the seek callback (introduced in curl 7.18.0). Some HTTP servers (such as Apache) give an 401 error reply immediately after receiving the headers (so no data has been read from the read buffers, and thus no rewinding is needed), but other servers (such as Lighttpd) only replies after the whole request has been sent and all data has been read from the read buffers, making rewinding necessary. Signed-off-by: Martin Storsjo <martin@martin.st> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-12http.c: CURLOPT_NETRC_OPTIONAL is not available in ancient versions of cURLLibravatar Junio C Hamano1-3/+1
Besides, we have already called easy_setopt with the option before coming to this function if it was available, so there is no need to repeat it here. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-10http authentication via promptsLibravatar Junio C Hamano1-0/+60
Curl is designed not to ask for password when only username is given in the URL, but has a way for application to feed a (username, password) pair to it. With this patch, you do not have to keep your password in plaintext in your $HOME/.netrc file when talking with a password protected URL with http://<username>@<host>/path/to/repository.git/ syntax. The code handles only the http-walker side, not the push side. At least, not yet. But interested parties can add support for it. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-10http_init(): Fix config file parsingLibravatar Junio C Hamano1-42/+27
We honor the command line options, environment variables, variables in repository configuration file, variables in user's global configuration file, variables in the system configuration file, and then finally use built-in default. To implement this semantics, the code should: - start from built-in default values; - call git_config() with the configuration parser callback, which implements "later definition overrides earlier ones" logic (git_config() reads the system's, user's and then repository's configuration file in this order); - override the result from the above with environment variables if set; - override the result from the above with command line options. The initialization code http_init() for http transfer got this wrong, and implemented a "first one wins, ignoring the later ones" in http_options(), to compensate this mistake, read environment variables before calling git_config(). This is all wrong. As a second class citizen, the http codepath hasn't been audited as closely as other parts of the system, but we should try to bring sanity to it, before inviting contributors to improve on it. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-09http.c: style cleanupsLibravatar Junio C Hamano1-23/+21
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-07http.c: use strbuf API in quote_ref_urlLibravatar Tay Ray Chuan1-20/+10
In addition, ''quote_ref_url'' inserts a slash between the base URL and remote ref path only if needed. Previously, this insertion wasn't contingent on the lack of a separating slash. Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-07Merge branch 'maint'Libravatar Junio C Hamano1-7/+4
* maint: GIT 1.6.0.5 "git diff <tree>{3,}": do not reverse order of arguments tag: delete TAG_EDITMSG only on successful tag gitweb: Make project specific override for 'grep' feature work http.c: use 'git_config_string' to get 'curl_http_proxy' fetch-pack: Avoid memcpy() with src==dst
2008-12-07http.c: use 'git_config_string' to get 'curl_http_proxy'Libravatar Miklos Vajna1-7/+4
Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-16Merge branch 'mh/maint-honor-no-ssl-verify'Libravatar Junio C Hamano1-1/+10
* mh/maint-honor-no-ssl-verify: Don't verify host name in SSL certs when GIT_SSL_NO_VERIFY is set
2008-09-09Use xmalloc() and friends to catch allocation failuresLibravatar Dotan Barak1-1/+1
Some places use the standard malloc/strdup without checking if the allocation was successful; they should use xmalloc/xstrdup that check the memory allocation result. Signed-off-by: Dotan Barak <dotanba@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-07Don't verify host name in SSL certs when GIT_SSL_NO_VERIFY is setLibravatar Junio C Hamano1-1/+10
Originally from Mike Hommey; earlier we were disabling SSL_VERIFYPEER but SSL_VERIFYHOST was in effect even when the user asked not to with the environment variable. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-05http.c: Use 'git_config_string' to clean up SSL config.Libravatar Brian Hetro1-24/+12
Signed-off-by: Brian Hetro <whee@smaertness.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-04Work around gcc warnings from curl headersLibravatar Junio C Hamano1-6/+7
After master.k.org upgrade, I started seeing these warning messages: transport.c: In function 'get_refs_via_curl': transport.c:458: error: call to '_curl_easy_setopt_err_write_callback' declared with attribute warning: curl_easy_setopt expects a curl_write_callback argument for this option It appears that the curl header wants to enforce the function signature for callback function given to curl_easy_setopt() to be compatible with that of (*curl_write_callback) or fwrite. This patch seems to work the issue around. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-14Don't allocate too much memory in quote_ref_urlLibravatar Mike Hommey1-1/+1
In c13b263, http_fetch_ref got "refs/" included in the ref passed to it, which, incidentally, makes the allocation in quote_ref_url too big, now. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-14Provide git_config with a callback-data parameterLibravatar Johannes Schindelin1-3/+3
git_config() only had a function parameter, but no callback data parameter. This assumes that all callback functions only modify global variables. With this patch, every callback gets a void * parameter, and it is hoped that this will help the libification effort. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-26Make ls-remote http://... list HEAD, like for git://...Libravatar Daniel Barkalow1-1/+4
This makes a struct ref able to represent a symref, and makes http.c able to recognize one, and makes transport.c look for "HEAD" as a ref in the list, and makes it dereference symrefs for the resulting ref, if any. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-26Make walker.fetch_ref() take a struct ref.Libravatar Daniel Barkalow1-6/+7
This simplifies a few things, makes a few things slightly more complicated, but, more importantly, allows that, when struct ref can represent a symref, http_fetch_ref() can return one. Incidentally makes the string that http_fetch_ref() gets include "refs/" (if appropriate), because that's how the name field of struct ref works. As far as I can tell, the usage in walker:interpret_target() wouldn't have worked previously, if it ever would have been used, which it wouldn't (since the fetch process uses the hash instead of the name of the ref there). Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-04Merge branch 'maint'Libravatar Junio C Hamano1-11/+3
* maint: Fix 'git remote show' regression on empty repository in 1.5.4 Fix incorrect wording in git-merge.txt. git-merge.sh: better handling of combined --squash,--no-ff,--no-commit options Fix random crashes in http_cleanup()
2008-03-03Fix random crashes in http_cleanup()Libravatar Mike Hommey1-11/+3
For some reason, http_cleanup was running all active slots, which could lead in situations where a freed slot would be accessed in fill_active_slots. OTOH, we are cleaning up, which means the caller doesn't care about pending requests. Just forget about them instead or running them. Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-27Set proxy override with http_init()Libravatar Mike Hommey1-1/+9
In transport.c, proxy setting (the one from the remote conf) was set through curl_easy_setopt() call, while http.c already does the same with the http.proxy setting. We now just use this infrastructure instead, and make http_init() now take the struct remote as argument so that it can take the http_proxy setting from there, and any other property that would be added later. At the same time, we make get_http_walker() take a struct remote argument too, and pass it to http_init(), which makes remote defined proxy be used for more than get_refs_via_curl(). We leave out http-fetch and http-push, which don't use remotes for the moment, purposefully. Signed-off-by: Mike Hommey <mh@glandium.org> Acked-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-11http.c: guard config parser from value=NULLLibravatar Junio C Hamano1-10/+15
http.sslcert and friends expect a string value Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-14Move fetch_ref from http-push.c and http-walker.c to http.cLibravatar Mike Hommey1-0/+82
Make the necessary changes to be ok with their difference, and rename the function http_fetch_ref. Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-14Use strbuf in http codeLibravatar Mike Hommey1-20/+14
Also, replace whitespaces with tabs in some places Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-14Remove a CURLOPT_HTTPHEADER (un)settingLibravatar Mike Hommey1-1/+0
Setting CURLOPT_HTTPHEADER doesn't add HTTP headers, but replaces whatever set of headers was configured before, so setting to NULL doesn't have any magic meaning, and is pretty much useless when setting to another list right after. Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-09Cleanup variables in http.[ch]Libravatar Mike Hommey1-14/+14
Quite some variables defined as extern in http.h are only used in http.c, and some others, only defined in http.c, were not static. Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-03Allow HTTP proxy to be overridden in configLibravatar Sam Vilain1-0/+11
The http_proxy / HTTPS_PROXY variables used by curl to control proxying may not be suitable for git. Allow the user to override them in the configuration file. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-09-19Properly cleanup in http_cleanup so builtin-fetch does not segfaultLibravatar Shawn O. Pearce1-2/+5
Junio and I both noticed that the new builtin-fetch was segfaulting immediately on http/https/ftp style URLs (those that went through libcurl and the commit walker). Although the builtin-fetch changes in this area were really just minor refactorings there was one major change made: we invoked http_init(), http_cleanup() then http_init() again in the same process. When we call curl_easy_cleanup() on each active_request_slot we are telling libcurl we did not want that buffer to be used again. Unfortunately we did not also deallocate the active_request_slot itself nor did we NULL out active_queue_head. This lead us to attempt to reuse these cleaned up libcurl handles when we later tried to invoke http_init() a second time to reactivate the curl library. The next file get operation then immediately segfaulted on most versions of libcurl. Properly freeing our own buffers and clearing the list causes us to reinitialize the curl buffers again if/when we need to use libcurl from within this same process. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-09-19Make function to refill http queue a callbackLibravatar Daniel Barkalow1-2/+28
This eliminates the last function provided by the code using http.h as a global symbol, so it should be possible to have multiple programs using http.h in the same executable, and it also adds an argument to that callback, so that info can be passed into the callback without being global. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-09-19Refactor http.h USE_CURL_MULTI fill_active_slots().Libravatar Daniel Barkalow1-0/+24
This removes all of the boilerplate and http-internal stuff from fill_active_slots() and makes it easy to turn into a callback. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-07War on whitespaceLibravatar Junio C Hamano1-1/+1
This uses "git-apply --whitespace=strip" to fix whitespace errors that have crept in to our source files over time. There are a few files that need to have trailing whitespaces (most notably, test vectors). The results still passes the test, and build result in Documentation/ area is unchanged. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-04-29http.c: Fix problem with repeated calls of http_initLibravatar Julian Phillips1-0/+1
Calling http_init after calling http_cleanup causes a segfault. This is due to the pragma_header curl_slist being freed but not being set to NULL. The subsequent call to http_init tries to setup the slist again, but it now points to an invalid memory location. Signed-off-by: Julian Phillips <julian@quantumfyre.co.uk> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-28http/ftp: optionally ask curl to not use EPSV commandLibravatar Sasha Khapyorsky1-0/+12
If http.noEPSV config variable is defined and true, or if GIT_CURL_FTP_NO_EPSV environment variable is defined, disable using of EPSV ftp command (PASV will be used instead). This is helpful with some "poor" ftp servers which does not support EPSV mode. Signed-off-by: Sasha Khapyorsky <sashak@voltaire.com> Signed-off-by: Junio C Hamano <junkio@cox.net>