Commit Graph

13174 Commits

Author SHA1 Message Date
Tatsuhiro Tsujikawa
e0093b4b73
ngtcp2: build with 0.17.0 and nghttp3 0.13.0
- ngtcp2_crypto_openssl was renamed to ngtcp2_crypto_quictls.

Closes #11428
2023-07-12 14:43:37 +02:00
Pontakorn Prasertsuk
c9ec851211
http2: send HEADER & DATA together if possible
Closes #11420
2023-07-11 20:09:55 +02:00
SaltyMilk
0c667188e0
fopen: optimize
Closes #11419
2023-07-11 19:43:51 +02:00
Daniel Stenberg
3b0eb3cd5c
cmake: make use of snprintf
Follow-up to 935b1bd454

Closes #11423
2023-07-11 19:42:47 +02:00
Stefan Eissing
c73b2f8207
macOS: fix taget detection
- TARGET_OS_OSX is not always defined on macOS
- this leads to missing symbol Curl_macos_init()
- TargetConditionals.h seems to define these only when
  dynamic targets are enabled (somewhere?)
- this PR fixes that on my macOS 13.4.1
- I have no clue why CI builds worked without it

Follow-up to c7308592fb
Closes #11417
2023-07-11 00:14:40 +02:00
Stan Hu
c7308592fb
hostip.c: Move macOS-specific calls into global init call
https://github.com/curl/curl/pull/7121 introduced a macOS system call
to `SCDynamicStoreCopyProxies`, which is invoked every time an IP
address needs to be resolved.

However, this system call is not thread-safe, and macOS will kill the
process if the system call is run first in a fork. To make it possible
for the parent process to call this once and prevent the crash, only
invoke this system call in the global initialization routine.

In addition, this change is beneficial because it:

1. Avoids extra macOS system calls for every IP lookup.
2. Consolidates macOS-specific initialization in a separate file.

Fixes #11252
Closes #11254
2023-07-09 19:16:58 +02:00
Stefan Eissing
15b131352b
http3/ngtcp2: upload EAGAIN handling
- refs #11389 where IDLE timeouts on upload are reported
- reword ngtcp2 expiry handling to apply to both send+recv
  calls into the filter
- EAGAIN uploads similar to the recent changes in HTTP/2, e.g.
  report success only when send data was ACKed.
- HOLD sending of EAGAINed uploads to avoid cpu busy loops
- rename internal function for consistency with HTTP/2
  implementation

Fixes #11389
Closes #11390
2023-07-09 18:53:25 +02:00
Daniel Stenberg
dd4d1a2695
transfer: clear credentials when redirecting to absolute URL
Make sure the user and password for the second request is taken from the
redirected-to URL.

Add test case 899 to verify.

Reported-by: James Lucas
Fixes #11410
Closes #11412
2023-07-09 11:12:13 +02:00
Stefan Eissing
def99e011e
hyper: fix EOF handling on input
We ran out of disc space due to an infinite loop with debug logging

Fixes #11377
Closes #11385
Reported-by: Dan Fandrich
2023-07-08 23:01:24 +02:00
Stefan Eissing
4e88024f0c
http2: raise header limitations above and beyond
- not quite to infinity
- rewrote the implementation of our internal HTTP/1.x request
  parsing to work with very large lines using dynbufs.
- new default limit is `DYN_HTTP_REQUEST`, aka 1MB, which
  is also the limit of curl's general HTTP request processing.

Fixes #11405
Closes #11407
2023-07-08 22:27:29 +02:00
Stefan Eissing
29f33b3400 http2: fix crash in handling stream weights
- Delay the priority handling until the stream has been opened.

- Add test2404 to reproduce and verify.

Weights may change "on the run", which is why there are checks in
general egress handling. These must not trigger when the stream has not
been opened yet.

Reported-by: jbgoog@users.noreply.github.com

Fixes https://github.com/curl/curl/issues/11379
Closes https://github.com/curl/curl/pull/11384
2023-06-28 16:32:16 -04:00
Stefan Eissing
873b958d0b
http2: h2 and h2-PROXY connection alive check fixes
- fix HTTP/2 check to not declare a connection dead when
  the read attempt results in EAGAIN
- add H2-PROXY alive check as for HTTP/2 that was missing
  and is needed
- add attach/detach around Curl_conn_is_alive() and remove
  these in filter methods
- add checks for number of connections used in some test_10
  proxy tunneling tests

Closes #11368
2023-06-22 17:32:15 +02:00
Stefan Eissing
d435bf1baf
http2: error stream resets with code CURLE_HTTP2_STREAM
- refs #11357, where it was reported that HTTP/1.1 downgrades
  no longer works
- fixed with suggested change
- added test_05_03 and a new handler in the curltest module
  to reproduce that downgrades work

Fixes #11357
Closes #11362
Reported-by: Jay Satiro
2023-06-22 17:07:27 +02:00
humbleacolyte
51f6a0dc1a
cf-socket: move ctx declaration under HAVE_GETPEERNAME
Closes #11352
2023-06-21 08:34:50 +02:00
Stefan Eissing
81e6793ec9
hyper: unslow
- refs #11203 where hyper was reported as being slow
- fixes hyper_executor_poll to loop until it is out of
  tasks as advised by @seanmonstar in https://github.com/hyperium/hyper/issues/3237
- added a fix in hyper io handling for detecting EAGAIN
- added some debug logs to see IO results
- pytest http/1.1 test cases pass
- pytest h2 test cases fail on connection reuse. HTTP/2
  connection reuse does not seem to work. Hyper submits
  a request on a reused connection, curl's IO works and
  thereafter hyper declares `Hyper: [1] operation was canceled: connection closed`
  on stderr without any error being logged before.

Fixes #11203
Reported-by: Gisle Vanem
Advised-by: Sean McArthur
Closes #11344
2023-06-20 09:11:41 +02:00
Stefan Eissing
65937f0d63
HTTP/2: upload handling fixes
- fixes #11242 where 100% CPU on uploads was reported
- fixes possible stalls on last part of a request body when
  that information could not be fully send on the connection
  due to an EAGAIN
- applies the same EGAIN handling to HTTP/2 proxying

Reported-by: Sergey Alirzaev
Fixed #11242
Closes #11342
2023-06-20 09:09:25 +02:00
Daniel Stenberg
355f4144df
cf-socket: skip getpeername()/getsockname for TFTP
Since the socket is not connected then the call fails. When the call
fails, failf() is called to write an error message that is then
surviving and is returned when the *real* error occurs later. The
earlier, incorrect, error therefore hides the actual error message.

This could be seen in stderr for test 1007

Test 1007 has now been extended to verify the stderr message.

Closes #11332
2023-06-19 09:39:49 +02:00
Daniel Stenberg
d40e5cc9a3
http: rectify the outgoing Cookie: header field size check
Previously it would count the size of the entire outgoing request and
not just the size of only the Cookie: header field - which was the
intention.

This could make the check be off by several hundred bytes in some cases.

Closes #11331
2023-06-18 11:07:23 +02:00
Jay Satiro
fd306e55a0 lib: fix some format specifiers
- Use CURL_FORMAT_CURL_OFF_T where %zd was erroneously used for some
  curl_off_t variables.

- Use %zu where %zd was erroneously used for some size_t variables.

Prior to this change some of the Windows CI tests were failing because
in Windows 32-bit targets have a 32-bit size_t and a 64-bit curl_off_t.
When %zd was used for some curl_off_t variables then only the lower
32-bits was read and the upper 32-bits would be read for part or all of
the next specifier.

Fixes https://github.com/curl/curl/issues/11327
Closes https://github.com/curl/curl/pull/11321
2023-06-17 01:38:04 -04:00
Chris Talbot
64aefea3d9 imap: Provide method to disable SASL if it is advertised
- Implement AUTH=+LOGIN for CURLOPT_LOGIN_OPTIONS to prefer plaintext
  LOGIN over SASL auth.

Prior to this change there was no method to be able to fall back to
LOGIN if an IMAP server advertises SASL capabilities. However, this may
be desirable for e.g. a misconfigured server.

Per: https://www.ietf.org/rfc/rfc5092.html#section-3.2

";AUTH=<enc-auth-type>" looks to be the correct way to specify what
authenication method to use, regardless of SASL or not.

Closes https://github.com/curl/curl/pull/10041
2023-06-15 21:31:02 -04:00
Marcel Raad
06dc599405
fopen: fix conversion warning on 32-bit Android
When building for 32-bit ARM or x86 Android, `st_mode` is defined as
`unsigned int` instead of `mode_t`, resulting in a
-Wimplicit-int-conversion clang warning because `mode_t` is
`unsigned short`. Add a cast to silence the warning.

Ref: https://android.googlesource.com/platform/bionic/+/refs/tags/ndk-r25c/libc/include/sys/stat.h#86
Closes https://github.com/curl/curl/pull/11313
2023-06-14 09:31:47 +02:00
Marcel Raad
0e4c1434ae
http2: fix variable type
`max_recv_speed` is `curl_off_t`, so using `size_t` might result in
-Wconversion GCC warnings for 32-bit `size_t`. Visible in the NetBSD
ARM autobuilds.

Closes https://github.com/curl/curl/pull/11312
2023-06-14 09:30:37 +02:00
Daniel Stenberg
bc1e405ede
vtls: fix potentially uninitialized local variable warnings
Follow-up from a4a5e438ae

Closes #11310
2023-06-13 08:29:25 +02:00
Daniel Stenberg
c92b7228c5
timeval: use CLOCK_MONOTONIC_RAW if available
Reported-by: Harry Sintonen
Ref: #11288
Closes #11291
2023-06-13 00:02:32 +02:00
Stefan Eissing
e024d5665d
lib: add CURLINFO_CONN_ID and CURLINFO_XFER_ID
- add an `id` long to Curl_easy, -1 on init
- once added to a multi (or its own multi), it gets
  a non-negative number assigned by the connection cache
- `id` is unique among all transfers using the same
  cache until reaching LONG_MAX where it will wrap
  around. So, not unique eternally.
- CURLINFO_CONN_ID returns the connection id attached to
  data or, if none present, data->state.lastconnect_id
- variables and type declared in tool for write out

Closes #11185
2023-06-12 23:53:00 +02:00
Daniel Stenberg
a4a5e438ae
vtls: avoid memory leak if sha256 call fails
... in the pinned public key handling function.

Reported-by: lizhuang0630 on github
Fixes #11306
Closes #11307
2023-06-12 15:57:46 +02:00
Stefan Eissing
3f784980cb
ngtcp2: use ever increasing timestamp in io
- ngtcp2 v0.16.0 asserts that timestamps passed to its function
  will only ever increase.
- Use a context shared between ingress/egress operations that
  uses a shared timestamp, regularly updated during calls.

Closes #11288
2023-06-09 20:50:31 +02:00
Daniel Stenberg
cae9d10be3
ngtcp2: build with 0.16.0 and nghttp3 0.12.0
- moved to qlog_write
- crypto => encryption
- CRYPTO => ENCRYPTION
- removed "_is_"
- ngtcp2_conn_shutdown_stream_read and
  ngtcp2_conn_shutdown_stream_write got flag arguments
- the nghttp3_callbacks struct got a recv_settings callback

Closes #11184
2023-06-09 20:50:24 +02:00
Daniel Stenberg
dacd25888f
curl_url_set: enforce the max string length check for all parts
Update the docs and test 1559 accordingly

Closes #11273
2023-06-08 23:40:08 +02:00
Daniel Stenberg
3c9256c8a0
urlapi: have *set(PATH) prepend a slash if one is missing
Previously the code would just do that for the path when extracting the
full URL, which made a subsequent curl_url_get() of the path to
(unexpectedly) still return it without the leading path.

Amend lib1560 to verify this. Clarify the curl_url_set() docs about it.

Bug: https://curl.se/mail/lib-2023-06/0015.html
Closes #11272
Reported-by: Pedro Henrique
2023-06-08 16:08:45 +02:00
Daniel Stenberg
78886afb50
ws: make the curl_ws_meta() return pointer a const
The returned info is read-only for the user.

Closes #11261
2023-06-07 23:37:21 +02:00
Viktor Szakats
3f8fc25720
cmake: add support for "unity" builds
Aka "jumbo" or "amalgamation" builds. It means to compile all sources
per target as a single C source. This is experimental.

You can enable it by passing `-DCMAKE_UNITY_BUILD=ON` to cmake.
It requires CMake 3.16 or newer.

It makes builds (much) faster, allows for better optimizations and tends
to promote less ambiguous code.

Also add a new AppVeyor CI job and convert an existing one to use
"unity" mode (one MSVC, one MinGW), and enable it for one macOS CI job.

Fix related issues:
- add missing include guard to `easy_lock.h`.
- rename static variables and functions (and a macro) with names reused
  across sources, or shadowed by local variables.
- add an `#undef` after use.
- add a missing `#undef` before use.
- move internal definitions from `ftp.h` to `ftp.c`.
- `curl_memory.h` fixes to make it work when included repeatedly.
- stop building/linking curlx bits twice for a static-mode curl tool.
  These caused doubly defined symbols in unity builds.
- silence missing extern declarations compiler warning for ` _CRT_glob`.
- fix extern declarations for `tool_freq` and `tool_isVistaOrGreater`.
- fix colliding static symbols in debug mode: `debugtime()` and
  `statename`.
- rename `ssl_backend_data` structure to unique names for each
  TLS-backend, along with the `ssl_connect_data` struct member
  referencing them. This required adding casts for each access.
- add workaround for missing `[P]UNICODE_STRING` types in certain Windows
  builds when compiling `lib/ldap.c`. To support "unity" builds, we had
  to enable `SCHANNEL_USE_BLACKLISTS` for Schannel (a Windows
  `schannel.h` option) _globally_. This caused an indirect inclusion of
  Windows `schannel.h` from `ldap.c` via `winldap.h` to have it enabled
  as well. This requires `[P]UNICODE_STRING` types, which is apperantly
  not defined automatically (as seen with both MSVS and mingw-w64).
  This patch includes `<subauth.h>` to fix it.
  Ref: https://github.com/curl/curl/runs/13987772013
  Ref: https://dev.azure.com/daniel0244/curl/_build/results?buildId=15827&view=logs&jobId=2c9f582d-e278-56b6-4354-f38a4d851906&j=2c9f582d-e278-56b6-4354-f38a4d851906&t=90509b00-34fa-5a81-35d7-5ed9569d331c
- tweak unity builds to compile `lib/memdebug.c` separately in memory
  trace builds to avoid PP confusion.
- force-disable unity for test programs.
- do not compile and link libcurl sources to libtests _twice_ when libcurl
  is built in static mode.

KNOWN ISSUES:
- running tests with unity builds may fail in cases.
- some build configurations/env may not compile in unity mode. E.g.:
  https://ci.appveyor.com/project/curlorg/curl/builds/47230972/job/51wfesgnfuauwl8q#L250

Ref: https://github.com/libssh2/libssh2/issues/1034
Ref: https://cmake.org/cmake/help/latest/prop_tgt/UNITY_BUILD.html
Ref: https://en.wikipedia.org/wiki/Unity_build

Closes #11095
2023-06-07 13:06:08 +00:00
Stefan Eissing
73022b52c1
bufq: make write/pass methods more robust
- related to #11242 where curl enters busy loop when
  sending http2 data to the server

Closes #11247
2023-06-05 20:11:41 +02:00
Raito Bezarius
0a75964d0d
haproxy: add --haproxy-clientip flag to spoof client IPs
CURLOPT_HAPROXY_CLIENT_IP in the library

Closes #10779
2023-06-05 20:08:37 +02:00
Viktor Szakats
c78a185df7
build: drop unused/redundant HAVE_WINLDAP_H
Sources did not use it. Autotools used it when checking for the
`winldap` library, which is redundant.

With CMake, detection was broken:
```
Run Build Command(s):/usr/local/Cellar/cmake/3.26.3/bin/cmake -E env VERBOSE=1 /usr/bin/make -f Makefile cmTC_2d8fe/fast && /Library/Developer/CommandLineTools/usr/bin/make  -f CMakeFiles/cmTC_2d8fe.dir/build.make CMakeFiles/cmTC_2d8fe.dir/build
Building C object CMakeFiles/cmTC_2d8fe.dir/HAVE_WINLDAP_H.c.obj
/usr/local/opt/llvm/bin/clang --target=x86_64-w64-mingw32 --sysroot=/usr/local/opt/mingw-w64/toolchain-x86_64 -D_WINSOCKAPI_="" -I/my/quictls/x64-ucrt/usr/include -I/my/zlib/x64-ucrt/usr/include -I/my/brotli/x64-ucrt/usr/include -Wno-unused-command-line-argument   -D_UCRT -DCURL_HIDDEN_SYMBOLS -DHAVE_SSL_SET0_WBIO -DHAS_ALPN -DNGHTTP2_STATICLIB -DNGHTTP3_STATICLIB -DNGTCP2_STATICLIB -DUSE_MANUAL=1  -fuse-ld=lld -Wl,-s -static-libgcc  -lucrt  -Wextra -Wall -pedantic -Wbad-function-cast -Wconversion -Winline -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wno-long-long -Wno-multichar -Wpointer-arith -Wshadow -Wsign-compare -Wundef -Wunused -Wwrite-strings -Wcast-align -Wdeclaration-after-statement -Wempty-body -Wendif-labels -Wfloat-equal -Wignored-qualifiers -Wno-format-nonliteral -Wno-sign-conversion -Wno-system-headers -Wstrict-prototypes -Wtype-limits -Wvla -Wshift-sign-overflow -Wshorten-64-to-32 -Wdouble-promotion -Wenum-conversion -Wunused-const-variable -Wcomma -Wmissing-variable-declarations -Wassign-enum -Wextra-semi-stmt  -MD -MT CMakeFiles/cmTC_2d8fe.dir/HAVE_WINLDAP_H.c.obj -MF CMakeFiles/cmTC_2d8fe.dir/HAVE_WINLDAP_H.c.obj.d -o CMakeFiles/cmTC_2d8fe.dir/HAVE_WINLDAP_H.c.obj -c /my/curl/bld-cmake-llvm-x64-shared/CMakeFiles/CMakeScratch/TryCompile-3JP6dR/HAVE_WINLDAP_H.c
In file included from /my/curl/bld-cmake-llvm-x64-shared/CMakeFiles/CMakeScratch/TryCompile-3JP6dR/HAVE_WINLDAP_H.c:2:
In file included from /usr/local/opt/mingw-w64/toolchain-x86_64/x86_64-w64-mingw32/include/winldap.h:17:
In file included from /usr/local/opt/mingw-w64/toolchain-x86_64/x86_64-w64-mingw32/include/schnlsp.h:9:
In file included from /usr/local/opt/mingw-w64/toolchain-x86_64/x86_64-w64-mingw32/include/schannel.h:10:
/usr/local/opt/mingw-w64/toolchain-x86_64/x86_64-w64-mingw32/include/wincrypt.h:5041:254: error: unknown type name 'PSYSTEMTIME'
  WINIMPM PCCERT_CONTEXT WINAPI CertCreateSelfSignCertificate (HCRYPTPROV_OR_NCRYPT_KEY_HANDLE hCryptProvOrNCryptKey, PCERT_NAME_BLOB pSubjectIssuerBlob, DWORD dwFlags, PCRYPT_KEY_PROV_INFO pKeyProvInfo, PCRYPT_ALGORITHM_IDENTIFIER pSignatureAlgorithm, PSYSTEMTIME pStartTime, PSYSTEMTIME pEndTime, PCERT_EXTENSIONS pExtensions);
                                                                                                                                                                                                                                                             ^
/usr/local/opt/mingw-w64/toolchain-x86_64/x86_64-w64-mingw32/include/wincrypt.h:5041:278: error: unknown type name 'PSYSTEMTIME'
  WINIMPM PCCERT_CONTEXT WINAPI CertCreateSelfSignCertificate (HCRYPTPROV_OR_NCRYPT_KEY_HANDLE hCryptProvOrNCryptKey, PCERT_NAME_BLOB pSubjectIssuerBlob, DWORD dwFlags, PCRYPT_KEY_PROV_INFO pKeyProvInfo, PCRYPT_ALGORITHM_IDENTIFIER pSignatureAlgorithm, PSYSTEMTIME pStartTime, PSYSTEMTIME pEndTime, PCERT_EXTENSIONS pExtensions);
                                                                                                                                                                                                                                                                                     ^
2 errors generated.
make[1]: *** [CMakeFiles/cmTC_2d8fe.dir/HAVE_WINLDAP_H.c.obj] Error 1
make: *** [cmTC_2d8fe/fast] Error 2
exitCode: 2
```

Cherry-picked from #11095 88e4a21ff70ccef391cf99c8165281ff81374503
Reviewed-by: Daniel Stenberg
Closes #11245
2023-06-05 16:31:38 +00:00
Daniel Stenberg
ba669d072d
urlapi: scheme starts with alpha
Add multiple tests to lib1560 to verify

Fixes #11249
Reported-by: ad0p on github
Closes #11250
2023-06-05 16:28:27 +02:00
Daniel Stenberg
fff65550bc
CURLOPT_MAIL_RCPT_ALLOWFAILS: replace CURLOPT_MAIL_RCPT_ALLLOWFAILS
Deprecate the name using three Ls and prefer the name with two.

Replaces #10047
Closes #11218
2023-06-03 23:29:04 +02:00
Stefan Eissing
f4b5c88ab7
http2: better support for --limit-rate
- leave transfer loop when --limit-rate is in effect and has
  been received
- adjust stream window size to --limit-rate plus some slack
  to make the server observe the pacing we want
- add test case to confirm behaviour

Closes #11115
2023-06-02 23:06:12 +02:00
Stefan Eissing
e054a16830
curl_log: evaluate log statement only when transfer is verbose
Closes #11238
2023-06-02 23:03:45 +02:00
Daniel Stenberg
93df7134b5
libssh2: provide error message when setting host key type fails
Ref: https://curl.se/mail/archive-2023-06/0001.html

Closes #11240
2023-06-02 23:00:27 +02:00
Daniel Stenberg
10d8404301
libssh2: use custom memory functions
Because of how libssh2_userauth_keyboard_interactive_ex() works: the
libcurl callback allocates memory that is later free()d by libssh2, we
must set the custom memory functions.

Reverts 8b5f100db3

Ref: https://github.com/libssh2/libssh2/issues/1078
Closes #11235
2023-06-01 16:06:39 +02:00
Stefan Eissing
c4bd61ddff
http3: send EOF indicator early as possible
- ngtcp2 and quiche implementations relied on the DONE_SEND event
  to forward the EOF for uploads to the libraries. This often
  result in a last 0 length EOF data. Tracking the amount of
  data left to upload allows EOF indication earlier.
- refs #11205 where CloudFlare DoH servers did not like to
  receive the initial upload DATA without EOF and returned
  a 400 Bad Request

Reported-by: Sergey Fionov
Fixes #11205
Closes #11207
2023-05-26 08:37:58 +02:00
Daniel Stenberg
196f3c3484
cf-socket: restore Curl_sock_assign_addr()
Regression since it was not private. Also used by msh3.c

Follow-up to 8e85764b7b
Reported-by: Gisle Vanem
Fixes #11202
Closes #11204
2023-05-25 14:34:39 +02:00
Daniel Stenberg
be17dc9d31
libssh: when keyboard-interactive auth fails, try password
The state machine had a mistake in that it would not carry on to that
next step.

This also adds a verbose output what methods that are available from the
server and renames the macros that change to the next auth methods to
try.

Reported-by: 左潇峰
Fixes #11196
Closes #11197
2023-05-25 11:09:29 +02:00
Daniel Stenberg
6375a65433
urlapi: remove superfluous host name check
... as it is checked later more proper.

Closes #11195
2023-05-25 08:30:20 +02:00
Stefan Eissing
5c58cb0212
http2: fix EOF handling on uploads with auth negotiation
- doing a POST with `--digest` does an override on the initial request
  with `Content-Length: 0`, but the http2 filter was unaware of that
  and expected the originally request body. It did therefore not
  send a final DATA frame with EOF flag to the server.
- The fix overrides any initial notion of post size when the `done_send`
  event is triggered by the transfer loop, leading to the EOF that
  is necessary.
- refs #11194. The fault did not happen in testing, as Apache httpd
  never tries to read the request body of the initial request,
  sends the 401 reply and closes the stream. The server used in the
  reported issue however tried to read the EOF and timed out on the
  request.

Reported-by: Aleksander Mazur
Fixes #11194
Cloes #11200
2023-05-25 08:26:18 +02:00
Daniel Stenberg
8e85764b7b
lib: remove unused functions, make single-use static
Closes #11174
2023-05-23 11:08:51 +02:00
Daniel Stenberg
127eb0d83a
misc: fix spelling mistakes
Reported-by: musvaage on github
Fixes #11171
Closes #11172
2023-05-23 10:42:09 +02:00
Stefan Eissing
88332049ea
http/2: unstick uploads
- refs #11157 and #11175 where uploads get stuck or lead to RST streams
- fixes our h2 send behaviour to continue sending in the nghttp2 session
  as long as it wants to. This will empty our send buffer as long as
  the remote stream/connection window allows.
- in case the window is exhausted, the data remaining in the send buffer
  will wait for a WINDOW_UPDATE from the server. Which is a socket event
  that engages our transfer loop again
- the problem in the issue was that we did not exhaust the window, but
  left data in the sendbuffer and no further socket events did happen.
  The server was just waiting for us to send more.
- relatedly, there was an issue fixed that closing a stream with KEEP_HOLD
  set kept the transfer from shutting down - as it should have - leading
  to a timeout.

Closes #11176
2023-05-22 16:19:13 +02:00
Daniel Stenberg
954c7dfb91
sectransp.c: make the code c89 compatible
Follow-up to dd2bb48552

Reported-by: FeignClaims on github
Fixes #11155
Closes #11159
2023-05-21 14:02:11 +02:00