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Closes #4055
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... in http2-less builds as it served no use.
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Various functions called within Curl_http2_done() can have the
side-effect of setting the Easy connection into drain mode (by calling
drain_this()). However, the last time we unset this for a transfer (by
calling drained_transfer()) is at the beginning of Curl_http2_done().
If the Curl_easy is reused for another transfer, it is then stuck in
drain mode permanently, which in practice makes it unable to write any
data in the new transfer.
This fix moves the last call to drained_transfer() to later in
Curl_http2_done(), after the functions that could potentially call for a
drain.
Fixes #3966
Closes #3967
Reported-by: Josie-H
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They serve very little purpose and mostly just add noise. Most of them
have been around for a very long time. I read them all before removing
or rephrasing them.
Ref: #3876
Closes #3883
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As previously planned and documented in DEPRECATE.md, all pipelining
code is removed.
Closes #3651
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Closes #3724
Reviewed-by: Jakub Zakrzewski
Reviewed-by: Daniel Gustafsson
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RFC 7540 says we should verify that the push is for an "authoritative"
server. We make sure of this by only allowing push with an :athority
header that matches the host that was asked for in the URL.
Fixes #3577
Reported-by: Nicolas Grekas
Bug: https://curl.haxx.se/mail/lib-2019-02/0057.html
Closes #3581
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Closes #3557
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urlapi: turn three local-only functions into statics
conncache: make conncache_find_first_connection static
multi: make detach_connnection static
connect: make getaddressinfo static
curl_ntlm_core: make hmac_md5 static
http2: make two functions static
http: make http_setup_conn static
connect: make tcpnodelay static
tests: make UNITTEST a thing to mark functions with, so they can be static for
normal builds and non-static for unit test builds
... and mark Curl_shuffle_addr accordingly.
url: make up_free static
setopt: make vsetopt static
curl_endian: make write32_le static
rtsp: make rtsp_connisdead static
warnless: remove unused functions
memdebug: remove one unused function, made another static
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We use "conn" everywhere to be a pointer to the connection.
Introduces two functions that "attaches" and "detaches" the connection
to and from the transfer.
Going forward, we should favour using "data->conn" (since a transfer
always only has a single connection or none at all) to "conn->data"
(since a connection can have none, one or many transfers associated with
it and updating conn->data to be correct is error prone and a frequent
reason for internal issues).
Closes #3442
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Reported-by: Florian Pritz
Fixes #3392
Closes #3399
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This is a companion patch to cbea2fd2c (NTLM: force the connection to
HTTP/1.1, 2018-12-06): with NTLM, we can switch to HTTP/1.1
preemptively. However, with other (Negotiate) authentication it is not
clear to this developer whether there is a way to make it work with
HTTP/2, so let's try HTTP/2 first and fall back in case we encounter the
error HTTP_1_1_REQUIRED.
Note: we will still keep the NTLM workaround, as it avoids an extra
round trip.
Daniel Stenberg helped a lot with this patch, in particular by
suggesting to introduce the Curl_h2_http_1_1_error() function.
Closes #3349
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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The function does not return the same value as snprintf() normally does,
so readers may be mislead into thinking the code works differently than
it actually does. A different function name makes this easier to detect.
Reported-by: Tomas Hoger
Assisted-by: Daniel Gustafsson
Fixes #3296
Closes #3297
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Closes #3144
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The result of a memory allocation should always be checked, as we may
run under memory pressure where even a small allocation can fail. This
adds checking and error handling to a few cases where the allocation
wasn't checked for success. In the ftp case, the freeing of the path
variable is moved ahead of the allocation since there is little point
in keeping it around across the strdup, and the separation makes for
more readable code. In nwlib, the lock is aslo freed in the error path.
Also bumps the copyright years on affected files.
Closes #3084
Reviewed-by: Jay Satiro <raysatiro@yahoo.com>
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
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Free 'header_recvbuf' unconditionally even if 'h2' isn't (yet) set, for
early failures.
Detected by OSS-Fuzz
Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10669
Closes #3046
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... so that they can clear the original pointer on failure, which makes
the error-paths and their cleanups easier.
Closes #2992
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Closes #2963
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Add functionality so that protocols can do custom keepalive on their
connections, when an external API function is called.
Add docs for the new options in 7.62.0
Closes #1641
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Closes #2928
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When Curl_http2_done() gets called before the http2 data is setup all
the way, we cannot send anything and this should just return an error.
Detected by OSS-Fuzz
Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10012
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Closes #2903
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... before the stream is started, we have it set to -1.
Fixes #2894
Closes #2898
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If this is the last stream on this connection, the RST_STREAM might not
get pushed to the wire otherwise.
Fixes #2882
Closes #2887
Researched-by: Michael Kaufmann
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Might help bug #2688 debugging
Closes #2880
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Deal with tiny "HTTP/0.9" (header-less) responses by checking the
status-line early, even before a full "HTTP/" is received to allow
detecting 0.9 properly.
Test 1266 and 1267 added to verify.
Fixes #2420
Closes #2872
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Reported-by: Andrei Virtosu
Fixes #2800
Closes #2809
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- separate easy handle from connections better
- added asserts on a number of places
- added sanity check of pipelines for debug builds
Closes #2751
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Closes #2623
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... and unify the source code to adhere.
Closes #2563
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Closes #2570
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Fixes gcc-8 picky compiler warnings
Reported-by: Rikard Falkeborn
Bug: #2560
Closes #2568
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When there's an upload in progress, make sure to wait for the socket to
become writable.
Detected-by: steini2000 on github
Bug: #2520
Closes #2567
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This function can get called on a connection that isn't setup enough to
have the 'recv_underlying' function pointer initialized so it would try
to call the NULL pointer.
Reported-by: Dario Weisser
Follow-up to db1b2c7fe9b093f8 (never shipped in a release)
Closes #2536
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Follow-up to 1514c44655e12e: replace another strstr() call done on a
buffer that might not be zero terminated - with a memchr() call, even if
we know the substring will be found.
Assisted-by: Max Dymond
Detected by OSS-Fuzz
Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8021
Closes #2534
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Fuzzing has proven we can reach code in on_frame_recv with status_code
not having been set, so let's detect that in run-time (instead of with
assert) and error error accordingly.
(This should no longer happen with the latest nghttp2)
Detected by OSS-Fuzz
Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7903
Closes #2514
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When receiving REFUSED_STREAM, mark the connection for close and retry
streams accordingly on another/fresh connection.
Reported-by: Terry Wu
Fixes #2416
Fixes #1618
Closes #2510
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This fixes the notorious "httpc->drain_total >= data->state.drain"
assert.
Reported-by: Anders Bakken
Fixes #1680
Closes #2509
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It's not strictly clear if the API contract allows us to call strstr()
on a string that isn't zero terminated even when we know it will find
the substring, and clang's ASAN check dislikes us for it.
Also added a check of the return code in case it fails, even if I can't
think of a situation how that can trigger.
Detected by OSS-Fuzz
Closes #2513
Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7760
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This triggered an assert if called more than once in debug mode (and a
memory leak if not debug build). With the right sequence of HTTP/2
headers incoming it can happen.
Detected by OSS-Fuzz
Closes #2507
Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7764
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If a connection has received a GOAWAY frame while not being used, the
function now reads frames off the connection before trying to reuse it
to avoid reusing connections the server has told us not to use.
Reported-by: Alex Baines
Fixes #1967
Closes #2402
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Closes #2387
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... don't consider it an error!
Assisted-by: Jay Satiro
Reported-by: Łukasz Domeradzki
Fixes #2365
Closes #2375
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... as it is interesting for many users.
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Closes #2302
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... instead of doing it unconditionally in debug builds. It cluttered up
the output a little too much.
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Prior to this change the stored byte count of each trailer was
miscalculated and 1 less than required. It appears any trailer
after the first that was passed to Curl_client_write would be truncated
or corrupted as well as the size. Potentially the size of some
subsequent trailer could be erroneously extracted from the contents of
that trailer, and since that size is used by client write an
out-of-bounds read could occur and cause a crash or be otherwise
processed by client write.
The bug appears to have been born in 0761a51 (precedes 7.49.0).
Closes https://github.com/curl/curl/pull/2231
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