Jonathan Nieder [Mon, 19 Aug 2013 07:57:54 +0000 (00:57 -0700)]
Curl_setopt: handle arbitrary-length username and password
libcurl truncates usernames, passwords, and options set with
curl_easy_setopt to 255 (= MAX_CURL_PASSWORD_LENGTH - 1) characters.
This doesn't affect the return value from curl_easy_setopt(), so from
the caller's point of view, there is no sign anything strange has
happened, except that authentication fails.
For example:
# Prepare a long (300-char) password.
s=0123456789; s=$s$s$s$s$s$s$s$s$s$s; s=$s$s$s;
# Start a server.
nc -l -p 8888 | tee out & pid=$!
# Tell curl to pass the password to the server.
curl --user me:$s http://localhost:8888 & sleep 1; kill $pid
# Extract the password.
userpass=$(
awk '/Authorization: Basic/ {print $3}' <out |
tr -d '\r' |
base64 -d
)
password=${userpass#me:}
echo ${#password}
Expected result: 300
Actual result: 255
The fix is simple: allocate appropriately sized buffers on the heap
instead of trying to squeeze the provided values into fixed-size
on-stack buffers.
Jonathan Nieder [Mon, 19 Aug 2013 07:48:24 +0000 (00:48 -0700)]
netrc: handle longer username and password
libcurl truncates usernames and passwords it reads from .netrc to
LOGINSIZE and PASSWORDSIZE (64) characters without any indication to
the user, to ensure the values returned from Curl_parsenetrc fit in a
caller-provided buffer.
Fix the interface by passing back dynamically allocated buffers
allocated to fit the user's input. The parser still relies on a
256-character buffer to read each line, though.
So now you can include an ~246-character password in your .netrc,
instead of the previous limit of 63 characters.
Jonathan Nieder [Mon, 19 Aug 2013 07:38:08 +0000 (00:38 -0700)]
url: use goto in create_conn() for exception handling
Instead of remembering before each "return" statement which temporary
allocations, if any, need to be freed, take care to set pointers to
NULL when no longer needed and use a goto to a common block to exit
the function and free all temporaries.
No functional change intended. Currently the only temporary buffer in
this function is "proxy" which is already correctly freed when
appropriate, but there will be more soon.
Daniel Stenberg [Fri, 16 Aug 2013 09:52:59 +0000 (11:52 +0200)]
glob: error out on range overflow
The new multiply() function detects range value overflows. 32bit
machines will overflow on a 32bit boundary while 64bit hosts support
ranges up to the full 64 bit range.
Added test 1236 to verify.
Bug: http://curl.haxx.se/bug/view.cgi?id=1267 Reported-by: Will Dietz
Daniel Stenberg [Thu, 15 Aug 2013 11:05:25 +0000 (13:05 +0200)]
urlglob: better detect unclosed braces, empty lists and overflows
A rather big overhaul and cleanup.
1 - curl wouldn't properly detect and reject globbing that ended with an
open brace if there were brackets or braces before it. Like "{}{" or
"[0-1]{"
2 - curl wouldn't properly reject empty lists so that "{}{}" would
result in curl getting (nil) strings in the output.
3 - By using strtoul() instead of sscanf() the code will now detected
over and underflows. It now also better parses the step argument to only
accept positive numbers and only step counters that is smaller than the
delta between the maximum and minimum numbers.
4 - By switching to unsigned longs instead of signed ints for the
counters, the max values for []-ranges are now very large (on 64bit
machines).
5 - Bumped the maximum number of globs in a single URL to 100 (from 10)
6 - Simplified the code somewhat and now it stores fixed strings as
single- entry lists. That's also one of the reasons why I did (5) as now
all strings between "globs" will take a slot in the array.
Added test 1234 and 1235 to verify. Updated test 87.
This commit fixes three separate bug reports.
Bug: http://curl.haxx.se/bug/view.cgi?id=1264
Bug: http://curl.haxx.se/bug/view.cgi?id=1265
Bug: http://curl.haxx.se/bug/view.cgi?id=1266 Reported-by: Will Dietz
Daniel Stenberg [Wed, 14 Aug 2013 18:36:03 +0000 (20:36 +0200)]
ftp_domore_getsock: when passive mode, the second conn is already there
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
Daniel Stenberg [Mon, 12 Aug 2013 11:52:58 +0000 (13:52 +0200)]
multi: s/easy/data
With everything being struct SessionHandle pointers now, this rename
makes multi.c use the library-wide practise of calling that pointer
'data' instead of the previously used 'easy'.
Daniel Stenberg [Mon, 5 Aug 2013 08:32:08 +0000 (10:32 +0200)]
SessionHandle: the protocol specific pointer is now a void *
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.
Daniel Stenberg [Thu, 8 Aug 2013 11:01:16 +0000 (13:01 +0200)]
global dns cache: didn't work [regression]
CURLOPT_DNS_USE_GLOBAL_CACHE broke in commit c43127414d89ccb (been
broken since the libcurl 7.29.0 release). While this option has been
documented as deprecated for almost a decade and nobody even reported
this bug, it should remain functional.
Daniel Stenberg [Thu, 8 Aug 2013 10:19:01 +0000 (12:19 +0200)]
FTP: renamed several local functions
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.
Daniel Stenberg [Mon, 5 Aug 2013 21:49:53 +0000 (23:49 +0200)]
FTP: when EPSV gets a 229 but fails to connect, retry with PASV
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...
Nick Zitzmann [Tue, 6 Aug 2013 01:47:56 +0000 (19:47 -0600)]
md5: remove use of CommonCrypto-to-OpenSSL macros for the benefit of Leopard
For some reason, OS X 10.5's GCC suddenly stopped working correctly with
macros that change MD5_Init etc. in the code to CC_MD5_Init etc., so I
worked around this by removing use of the macros and inserting static
functions that just call CommonCrypto's implementations of the functions
instead.
Guenter Knauf [Mon, 5 Aug 2013 11:02:27 +0000 (13:02 +0200)]
Simplify check for trusted certificates.
This changes the previous check for untrusted certs to a check for
certs explicitely marked as trusted.
The change is backward-compatible (tested with certdata.txt v1.80).
Daniel Stenberg [Sun, 4 Aug 2013 21:27:27 +0000 (23:27 +0200)]
formadd: wrong pointer for file name when CURLFORM_BUFFERPTR used
The internal function that's used to detect known file extensions for
the default Content-Type got the the wrong pointer passed in when
CURLFORM_BUFFER + CURLFORM_BUFFERPTR were used. This had the effect that
strlen() would be used which could lead to an out-of-bounds read (and
thus segfault). In most cases it would only lead to it not finding or
using the correct default content-type.
It also showed that test 554 and test 587 were testing for the
previous/wrong behavior and now they're updated as well.
Bug: http://curl.haxx.se/bug/view.cgi?id=1262 Reported-by: Konstantin Isakov
Guenter Knauf [Sun, 4 Aug 2013 19:30:11 +0000 (21:30 +0200)]
Skip more untrusted certificates.
Christian Heimes brought to our attention that the certdata.txt
format has recently changed [1], causing ca-bundle.crt created
with mk-ca-bundle.[pl|vbs] to include untrusted certs.
Daniel Stenberg [Sat, 3 Aug 2013 21:39:23 +0000 (23:39 +0200)]
configure: rephrase the notice in _XC_CHECK_VAR_*
Instead of claiming it is an error, we call it a "note" to reduce the
severity level. But the following text now says the [variable] "*should*
only be used to specify"... instead of previously having said "may".
Daniel Stenberg [Thu, 1 Aug 2013 22:09:59 +0000 (00:09 +0200)]
multi: remove 'Curl_one_easy' struct, phase 1
The motivation for having a separate struct that keep track of an easy
handle when using the multi handle was removed when we switched to
always using the multi interface internally. Now they were just two
separate struct that was always allocated for each easy handle.
This first step just moves the Curl_one_easy struct members into the
SessionHandle struct and hides this somehow (== keeps the source code
changes to a minimum) by defining Curl_one_easy to SessionHandle
The biggest changes in this commit are:
1 - the linked list of easy handles had to be changed somewhat due
to the new struct layout. This made the main linked list pointer
get renamed to 'easyp' and there's also a new pointer to the last
node, called easylp. It is no longer circular but ends with ->next
pointing to NULL. New nodes are still added last.
2 - easy->state is now called easy->mstate to avoid name collision
Daniel Stenberg [Tue, 30 Jul 2013 22:17:56 +0000 (00:17 +0200)]
curl: make --progress-bar update the line less frequently
Also, use memset() instead of a lame loop.
The previous logic that tried to avoid too many updates were very
ineffective for really fast transfers, as then it could easily end up
doing hundreds of updates per second that would make a significant
impact in transfer performance!
Bug: http://curl.haxx.se/mail/archive-2013-07/0031.html Reported-by: Marc Doughty
Nick Zitzmann [Wed, 31 Jul 2013 02:32:18 +0000 (20:32 -0600)]
darwinssl: added LFs to some strings passed into infof()
(This doesn't need to appear in the release notes.) I noticed a few places
where infof() was called, and there should've been an LF at the end of the
string, but there wasn't.
Nick Zitzmann [Wed, 31 Jul 2013 02:25:38 +0000 (20:25 -0600)]
darwinssl: fix build error in crypto authentication under Snow Leopard
It turns out Snow Leopard not only has SecItemCopyMatching() defined in
a header not included by the omnibus header, but it won't work for our
purposes, because searching for SecIdentityRef objects wasn't added
to that API until Lion. So we now use the old SecKeychainSearch API
instead if the user is building under, or running under, Snow Leopard.
Bug: http://sourceforge.net/p/curl/bugs/1255/
Reported by: Edward Rudd
Nick Zitzmann [Wed, 31 Jul 2013 02:20:20 +0000 (20:20 -0600)]
md5 & metalink: use better build macros on Apple operating systems
Previously we used __MAC_10_X and __IPHONE_X to mark digest-generating
code that was specific to OS X and iOS. Now we use
__MAC_OS_X_VERSION_MAX_ALLOWED and __IPHONE_OS_VERSION_MAX_ALLOWED
instead of those macros.
Bug: http://sourceforge.net/p/curl/bugs/1255/
Reported by: Edward Rudd
John E. Malmberg [Sun, 28 Jul 2013 21:33:45 +0000 (23:33 +0200)]
curl_formadd: fix file upload on VMS
For the standard VMS text file formats, VMS needs to read the file to
get the actual file size.
For the standard VMS binary file formats, VMS needs a special format of
fopen() call so that it stops reading at the logical end of file instead
of at the end of the blocks allocated to the file.
I structured the patch this way as I was not sure about changing the
structures or parameters to the routines, but would prefer to only call
the stat() function once and pass the information to where the fopen()
call is made.
Daniel Stenberg [Tue, 23 Jul 2013 20:10:44 +0000 (22:10 +0200)]
formadd: CURLFORM_FILECONTENT wrongly rejected some option combos
The code for CURLFORM_FILECONTENT had its check for duplicate options
wrong so that it would reject CURLFORM_PTRNAME if used in combination
with it (but not CURLFORM_COPYNAME)! The flags field used for this
purpose cannot be interpreted that broadly.
John E. Malmberg [Mon, 22 Jul 2013 20:15:27 +0000 (22:15 +0200)]
curl: fix upload of a zip file in OpenVMS
Two fixes:
1. Force output file format to be stream-lf so that partial downloads
can be continued.
This should have minor impact as if the file does not exist, it was
created with stream-lf format. The only time this was an issue is if
there was already an existing file with a different format.
2. Fix file uploads are now fixed.
a. VMS binary files such as ZIP archives are now uploaded
correctly.
b. VMS text files are read once to get the correct size
and then converted to line-feed terminated records as
they are read into curl.
The default VMS text formats do not contain either line-feed or
carriage-return terminated records. Those delimiters are added by the
operating system file read calls if the application requests them.
Yang Tse [Mon, 22 Jul 2013 16:08:23 +0000 (18:08 +0200)]
tool_operate.c: fix passing curl_easy_setopt long arg on some x64 ABIs
We no longer pass our 'bool' data type variables nor constants as
an argument to my_setopt(), instead we use proper 1L or 0L values.
This also fixes macro used to pass string argument for CURLOPT_SSLCERT,
CURLOPT_SSLKEY and CURLOPT_EGDSOCKET using my_setopt_str() instead of
my_setopt().
This also casts enum or int argument data types to long when passed to
my_setopt_enum().
Daniel Stenberg [Sun, 14 Jul 2013 15:33:24 +0000 (17:33 +0200)]
curl_easy_perform: gradually increase the delay time
Instead of going 50,100,150 etc millisecond delay time when nothing has
been found to do or wait for, we now start lower and double each loop as
in 4,8,16,32 etc.
This lowers the minimum wait without sacrifizing the longer wait too
much with unnecessary CPU cycles burnt.
Bug: http://curl.haxx.se/mail/lib-2013-07/0103.html Reported-by: Andreas Malzahn
Daniel Stenberg [Fri, 19 Jul 2013 21:02:30 +0000 (23:02 +0200)]
ftp_do_more: consider DO_MORE complete when server connects back
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