Commit graph

15432 commits

Author SHA1 Message Date
Daniel Stenberg
decd7e157c
cf-socket: always check Curl_cf_socket_peek() return code
Make it trigger a warning if not.

Reported-by: Joshua Rogers
Closes #18862
2025-10-06 14:45:53 +02:00
Viktor Szakats
51b85bdc6c
windows: use consistent format when showing error codes
For `GetLastError()` and `SECURITY_STATUS`:
0x-prefixed, 8-digit, lowercase, hex: 0x1234abcd

Also: say `GetLastError()` instead of `errno` in one message.

Closes #18877
2025-10-06 14:00:29 +02:00
Daniel Stenberg
0d68f48205
krb5_sspi: the chlg argument is NOT optional
Fix the comment, add assert.

Reported-by: Joshua Rogers
Closes #18865
2025-10-06 13:58:43 +02:00
Daniel Stenberg
d4c0332677
libssh2: clarify that sshp->path is always at least one byte
Reported-by: Joshua Rogers
Closes #18864
2025-10-06 13:57:19 +02:00
Daniel Stenberg
c3adf63ee7
libssh2: bail out on chgrp and chown number parsing errors
Reported-by: Joshua Rogers
Closes #18863
2025-10-06 13:46:06 +02:00
Stefan Eissing
762ce8801b
quiche: fix possible leaks on teardown
When the close of the quiche filter was never called, the destroy function
did not release all allicated resources.

When closing a quiche filter, set the connected flag to FALSE.

Reported-by: Joshua Rogers
Closes #18880
2025-10-06 13:37:21 +02:00
Viktor Szakats
e9ababe9aa
windows: use native error code types more
- curlx_get_winapi_error: accept DWORD (was: int), move casts one level
  up the callstack.

- sspi: bump some types to `SECURITY_STATUS` (int -> LONG).

- digest_sspi: drop unnecessary cast.

Closes #18868
2025-10-06 12:12:44 +02:00
Daniel Stenberg
e7a5184fa1
openssl: call SSL_get_error() with proper error
The error function should be called with the return code from the
previous call to SSL_shutdown() as argument.

Closes #18872
2025-10-06 11:31:54 +02:00
Viktor Szakats
34ad78da89
curlx: move Curl_strerror, use in src and tests, ban strerror globally
Also:
- tests/server: replace local `sstrerror()` with `curlx_strerror()`.
- tests/server: show the error code next to the string, where missing.
- curlx: use `curl_msnprintf()` when building for src and tests.
  (units was already using it.)
- lib: drop unused includes found along the way.
- curlx_strerror(): avoid compiler warning (and another similar one):
  ```
  In file included from servers.c:14:
  ../../lib/../../lib/curlx/strerr.c: In function ‘curlx_strerror’:
  ../../lib/../../lib/curlx/strerr.c:328:32: error: ‘snprintf’ output may be truncated before the last format character [-Werror=format-truncation=]
    328 |       SNPRINTF(buf, buflen, "%s", msg);
        |                                ^
  ../../lib/../../lib/curlx/strerr.c:47:18: note: ‘snprintf’ output 1 or more bytes (assuming 2) into a destination of size 1
     47 | #define SNPRINTF snprintf
        |                  ^
  ../../lib/../../lib/curlx/strerr.c:328:7: note: in expansion of macro ‘SNPRINTF’
    328 |       SNPRINTF(buf, buflen, "%s", msg);
        |       ^~~~~~~~
  ```

Follow-up to 45438c8d6f #18823

Closes #18840
2025-10-06 09:44:23 +02:00
Daniel Stenberg
b54b4697ca
url: make Curl_init_userdefined return void
It cannot actually return an error, so the parent function does not need
to check for error and have an exit path that cannot be reached.

Pointed out by CodeSonar

Closes #18855
2025-10-05 22:58:20 +02:00
Viktor Szakats
1ae5e44eff
strerror: drop workaround for SalfordC win32 header bug
Follow-up to ccf43ce91d #15957

Closes #18857
2025-10-05 19:11:02 +02:00
Joshua Rogers
da8f7ae096
telnet: print DISPlay LOCation in printsub without mutating buffer
Closes #18852
2025-10-05 14:03:31 +02:00
Joshua Rogers
eb88092703
telnet: use pointer[0] for "unknown" option instead of pointer[i]
i is taken from pointer[length-2] (often the IAC byte) before we do
length -= 2, so using pointer[i] indexes an arbitrary/stale byte
unrelated to the option code. pointer[0] is the suboption’s option code
per the telnet SB format, so printing pointer[0] yields correct, stable
diagnostics.

Closes #18851
2025-10-05 14:02:41 +02:00
Joshua Rogers
c0febf6661
cpool: make bundle->dest an array; fix UB
Replace `char *dest[1]` with a proper `char dest[1]` array in
cpool_bundle. This removes undefined behavior from memcpy (writing past
the declared object) while keeping the same key semantics: dest_len is
strlen+1 (includes NUL), and hash add/delete calls remain unchanged.

Closes #18850
2025-10-05 14:02:07 +02:00
Viktor Szakats
56026dae02
openssl: fix build for v1.0.2
```
lib/vtls/openssl.c: In function 'asn1_object_dump':
lib/vtls/openssl.c:299:42: error: passing argument 3 of 'i2t_ASN1_OBJECT' discards 'const' qualifier from pointer target type [-Werror=discarded-qualifiers]
  299 |   int i = i2t_ASN1_OBJECT(buf, (int)len, a);
      |                                          ^
In file included from /home/runner/djgpp/include/openssl/objects.h:965,
                 from /home/runner/djgpp/include/openssl/evp.h:94,
                 from /home/runner/djgpp/include/openssl/x509.h:73,
                 from /home/runner/djgpp/include/openssl/ssl.h:156,
                 from lib/curl_ntlm_core.c:71,
                 from bld/lib/CMakeFiles/libcurl_static.dir/Unity/unity_0_c.c:88:
/home/runner/djgpp/include/openssl/asn1.h:921:58: note: expected 'ASN1_OBJECT *' {aka 'struct asn1_object_st *'} but argument is of type 'const ASN1_OBJECT *' {aka 'const struct asn1_object_st *'}
  921 | int i2t_ASN1_OBJECT(char *buf, int buf_len, ASN1_OBJECT *a);
      |                                             ~~~~~~~~~~~~~^
```
Ref: https://github.com/curl/curl/actions/runs/18236773678/job/51931937131?pr=18039

Follow-up to bb46d42407 #18647

Closes #18841
2025-10-04 11:34:44 +02:00
Viktor Szakats
c9edc26afe
lib: drop unused include and duplicate guards
Closes #18839
2025-10-04 11:34:42 +02:00
Viktor Szakats
45438c8d6f
checksrc: reduce directory-specific exceptions
By making them defaults, then fixing and/or reshuffling remaining
exceptions as necessary.

- checksrc: ban by default: `snprintf`, `vsnprintf`, `sscanf`, `strtol`.
- examples: replace `strtol` with `atoi` to avoid a checksrc exception.
- tests/libtest: replace `strtol` with `atol`.
- tests/server: replace most `strtol` with `atol`.
- tests/server: replace most `strtoul` with `atol`/`atoi`.
- tests/server: drop no longer used `util_ultous`.
- fix typo in checksrc rules: `vsnprint` -> `vsnprintf`.
- update local exceptions.

Also:
- examples: ban curl printf functions. They're discouraged in user code.
- examples: replace curl printf with system printf.
  Add `snprintf` workaround for <VS2015.
- examples/synctime: fix `-Wfloat-equal`.
- examples/synctime: exclude for non-Windows and non-UWP Windows.
- examples/synctime: build by default.

Closes #18823
2025-10-04 00:48:58 +02:00
Stefan Eissing
733c994b1e
doh: inherit new custom ssl flags
The new custom_* flags in the SSL config need to be inherited when
setting up the doh easy handle, so that defaults apply the same way as
for the original easy handle.

Closes #18831
2025-10-03 17:53:25 +02:00
Daniel Stenberg
4b8278fb3d
progress: expand to use 6 characters per size
Previously the progress meter used a maximum of five digits+letter in
the progress meter output: up to 99999 bytes and then 9999k, 9999M etc.
The output then used two spaces after the size between the next field in
the display.

This new approach uses one letter more with only one space in between
the fields. It makes it possible to show up to 999999 bytes and then
99999k, 99999M etc. The function uses a single decimal when outputting a
value less than 1000 in any unit. Like 999.9M.

Closes #18828
2025-10-03 14:08:41 +02:00
Stefan Eissing
9aa8e9a783
vquic: handling of io improvements
- better tracing of what system call is used and how often
- ngtcp2: combine vquic_send into larger chunks
- ngtcp2: define own PMTU values and enable MTU probing
- ngtcp2: trace interesting remote transport parameters

Closes #18812
2025-10-03 13:46:10 +02:00
Stefan Eissing
eefd03c572
ssl: support Apple SecTrust configurations
- configure/cmake support for enabling the option
- supported in OpenSSL and GnuTLS backends
- when configured, Apple SecTrust is the default trust store
  for peer verification. When one of the CURLOPT_* for adding
  certificates is used, that default does not apply.
- add documentation of build options and SSL use

Closes #18703
2025-10-03 12:02:23 +02:00
Stefan Eissing
95ac33fc4f
ip-happy: prevent event-based stall on retry
When delaying an IP happy eyeball restart, set an actual timer or the
connection will stall when running event based.

Closes #18815
2025-10-02 22:53:58 +02:00
Jay Satiro
2a25ebe958 vtls_scache: fix race condition
- Lock before counting the cache sessions.

Prior to this change when taking a session a trace command counted the
sessions but not under lock, which caused a race condition.

Reported by: Viktor Szakats

Fixes https://github.com/curl/curl/issues/18806
Closes https://github.com/curl/curl/pull/18813
2025-10-02 11:33:44 -04:00
Stefan Eissing
dba87aea7d
multi_ev: remove unnecessary data check that confuses analysers
Closes #18804
2025-10-02 14:25:16 +02:00
Daniel Stenberg
ea4ba6d9ef
lib: remove personal names from comments
- it's just too random who got mentioned
- we can't mention all, so better consistently mention none
- make sure they all are mentioned in THANKS
- also remove some unnecessary comment ramblings

Closes #18803
2025-10-02 14:22:57 +02:00
Viktor Szakats
e43aea3049
lib: fix build error and compiler warnings with verbose strings disabled
- asyn-ares: fix compiler warning:
  ```
  lib/asyn-ares.c:751:17: error: code will never be executed [clang-diagnostic-unreachable-code,-warnings-as-errors]
    751 |     char *csv = ares_get_servers_csv(ares->channel);
        |                 ^~~~~~~~~~~~~~~~~~~~
  ```

- curl_trc: fix missing symbol:
  ```
  /usr/bin/ld: ../lib/.libs/libcurl.so: undefined reference to `Curl_trc_timer'
  collect2: error: ld returned 1 exit status
  ```
  Ref: https://app.circleci.com/pipelines/github/curl/curl/15446/workflows/67afa113-9c49-4249-9180-f6f01fc7dfdd/jobs/149177
  Ref: https://github.com/curl/curl/actions/runs/18174250400/job/51736249444#step:33:623
  Follow-up to b022389757 #18768

- multi: fix `-Wunreachable-code`:
  ```
  lib/multi.c:1107:28: error: code will never be executed [-Werror,-Wunreachable-code]
   1107 |     size_t timeout_count = Curl_llist_count(&data->state.timeoutlist);
        |                            ^~~~~~~~~~~~~~~~
  lib/multi.c:3054:35: error: code will never be executed [-Werror,-Wunreachable-code]
   3054 |       struct Curl_llist_node *e = Curl_llist_head(&data->state.timeoutlist);
        |                                   ^~~~~~~~~~~~~~~
  lib/multi.c:3380:7: error: code will never be executed [-Werror,-Wunreachable-code]
   3380 |       Curl_llist_head(&data->state.timeoutlist);
        |       ^~~~~~~~~~~~~~~
  ```

Cherry-picked from #18797
Closes #18799
2025-10-02 10:41:46 +02:00
Stefan Eissing
d71ec36d1b
openssl-quic: ignore unexpected streams opened by server
HTTP/3 defines "reserved stream types" that are intended to be ignored
by a receiver. This is part of the "greasing" effort that flexes parts
of the protocol that are needed for future extensions.

curl's OpenSSL-QUIC implementation treated all unexpected streams as
an error. Which seems the right thing to do *but* for these reserved types.
However OpenSSL does not expose this type and thus, curl needs to silently
discard all unexpected streams opened by the server to allow interop
with servers that flex the GREASE parts.

Fixes #18780
Reported-by: Pocs Norbert
Closes #18791
2025-10-01 15:56:58 +02:00
Daniel Stenberg
e891b4195f
cf-socket: tweak a memcpy() to read better
By checking the size of the actual buffer and using that as memcpy
target instead of another union member, this helps readers and static
code analyzers to determine that this is not a buffer overflow.

Ref: #18677
Closes #18787
2025-10-01 15:52:53 +02:00
Stefan Eissing
b022389757
ip-happy: do not set unnecessary timeout
When attempts on all addresses have been started, do no longer set any
EXPIRE_HAPPY_EYEBALLS timeouts.

Fixes #18767
Reported-by: Johannes Schindelin
Closes #18768
2025-10-01 08:01:47 +02:00
Stefan Eissing
d8823e855c
asyn-thrdd resolver: clear timeout when done
When the async threaded resolver thread returned, clear the
started EXPIRE_ASYNC_NAME timeout.

Closes #18769
2025-10-01 07:59:41 +02:00
Viktor Szakats
f97aa8d7ed
tidy-up: fcntl.h includes
- drop from source files without obvious users.
- include in `curlx/fopen.h` also for Windows.

Follow-up to 9678ff5b1b #18776

Closes #18782
2025-09-30 21:57:17 +02:00
Viktor Szakats
9678ff5b1b
build: avoid overriding system open and stat symbols
Replace them by `curlx_open()` and `curlx_stat()`.

To make it obvious in the source code what is being executed.

Also:
- tests/server: stop overriding `open()` for test servers.
  This is critical for the call made from the signal handler.
  For other calls, it's an option to use `curlx_open()`, but
  doesn't look important enough to do it, following the path
  taken with `fopen()`.

Follow-up to 10bac43b87 #18774
Follow-up to 20142f5d06 #18634
Follow-up to bf7375ecc5 #18503

Closes #18776
2025-09-30 16:30:09 +02:00
Viktor Szakats
20142f5d06
build: avoid overriding system symbols for fopen functions
By introducing wrappers for them in the curlx namespace:
`curlx_fopen()`, `curlx_fdopen()`, `curlx_fclose()`.

The undefine/redefine/`(function)()` methods broke on systems
implementing these functions as macros. E.g. AIX 32-bit's `fopen()`.

Also:
- rename `lib/fopen.*` to `lib/curl_fopen.*` (for `Curl_fopen()`)
  to make room for the newly added `curlx/fopen.h`.
- curlx: move file-related functions from `multibyte.c` to `fopen.c`.
- tests/server: stop using the curl-specific `fopen()` implementation
  on Windows. Unicode isn't used by runtests, and it isn't critical to
  run tests on longs path. It can be re-enabled if this becomes
  necessary, or if the wrapper receives a feature that's critical for
  test servers.

Reported-by: Andrew Kirillov
Bug: https://github.com/curl/curl/issues/18510#issuecomment-3274393640

Follow-up to bf7375ecc5 #18503
Follow-up to 9863599d69 #18502
Follow-up to 3bb5e58c10 #17827

Closes #18634
2025-09-30 01:10:36 +02:00
Viktor Szakats
e17aa98bfe
cmake: use more COMPILER_OPTIONS, LINK_OPTIONS / LINK_FLAGS
- replace `COMPILE_FLAGS` with `COMPILE_OPTIONS` that superceded it.

  Follow-up to 6140dfcf3e
  https://cmake.org/cmake/help/v4.1/prop_sf/COMPILE_FLAGS.html

- replace `target_link_libraries()` with `LINK_FLAGS` property for
  CMake <=3.12, because we are passing linker options (not libs).

  Follow-up to 91720b620e #18468
  Follow-up to 548873921c #17670
  Follow-up to 95aea798db #5843
  https://cmake.org/cmake/help/v3.7/command/target_link_libraries.html
  https://cmake.org/cmake/help/v3.7/prop_tgt/LINK_FLAGS.html

- replace `target_link_options()` with `LINK_OPTIONS` propery for
  CMake 3.13+, to use the modern style.

  Follow-up to 91720b620e #18468
  Follow-up to 548873921c #17670
  https://cmake.org/cmake/help/v3.13/command/target_link_options.html
  https://cmake.org/cmake/help/v3.13/prop_tgt/LINK_OPTIONS.html

Also:

- fix to append to, not override, previously set linker options when
  using `CURL_LIBCURL_VERSIONED_SYMBOLS=ON`. Before this patch, it was
  overwriting linker options when using `CURL_CODE_COVERAGE=ON`.

  Follow-up to 91720b620e #18468

Closes #18762
2025-09-29 13:07:14 +02:00
Viktor Szakats
95e50ad694
tidy-up: miscellaneous
- GHA/checkdocs: rename `spellcheck` job to `pyspelling` to say
  the exact tool used.
- GHA/checkdocs: restore a comment.
- GHA/linux: add `-B .` to a cmake configure to avoid warning, and
  future breakage.
- autotools: use correct casing for `Schannel`.
- doh: update RFC URL.
- drop redundant parenthesis.
- fix indentation, whitespace.

Closes #18756
2025-09-27 12:59:07 +02:00
Daniel Stenberg
b5ffe30e5b
cf-ip-happy: mention unix domain path, not port number
In the connect error message if a unix domain socket was used.

Reported-by: kuchara on github
Ref: #18748
Closes #18749
2025-09-26 17:29:12 +02:00
Daniel Stenberg
72f72f678d
openldap: check ber_sockbuf_add_io() return code
The man page says nothing about what the return code means but Howard
Chu tells me it is 0 on success, -1 on fail.

Help-by: Howard Chu

Closes #18747
2025-09-26 14:29:49 +02:00
Stefan Eissing
061e265502
http: handle user-defined connection headers
When there is more than one user-supplied 'Connection: ' header, add
values that curl needs internally to the first one and emit all
subsequent ones thereafter.

Fixes #18662
Reported-by: Evgeny Grin (Karlson2k)
Closes #18686
2025-09-26 09:27:50 +02:00
Daniel Stenberg
16e0a2098d
openssl: fail the transfer if ossl_certchain() fails
Since it would indicate errors to the degree that continuing would just
risk hiding the earlier errors or make things weird.

Inspired by a report in Joshua's sarif data

Closes #18646
2025-09-25 22:25:20 +02:00
Daniel Stenberg
b8f10be4f2
libssh: acknowledge SSH_AGAIN in the SFTP state machine
Reported in Joshua's sarif data

Closes #18740
2025-09-25 17:26:47 +02:00
Daniel Stenberg
9595921b06
libssh: clarify myssh_block2waitfor
Fixed misleading comment. Simplified the bit setup.

Reported in Joshua's sarif data

Closes #18739
2025-09-25 17:26:01 +02:00
Stefan Eissing
f5bae285f3
socks: handle error in verbose trace gracefully
Adjust the flow to always succeed in verbose trace of connect.

Reported in Joshua's sarif data

Closes #18722
2025-09-25 16:55:22 +02:00
Daniel Stenberg
9f75603d4f
tftp: only check address if it was stored
If recvfrom() fails, it might not have stored an address.

Follow-up to c4f9977c66

Pointed out by CodeSonar

Closes #18738
2025-09-25 16:54:19 +02:00
Daniel Stenberg
bebc8df0f7
schannel_verify: use more human friendly error messages
Closes #18737
2025-09-25 16:53:29 +02:00
Stefan Eissing
442943fb8e
openssl: set io_need always
When OpenSSL reports SSL_ERROR_WANT_READ, set the io_need explicitly.
It should have already been set by the BIO, but be safe.

Reported in Joshua's sarif data

Closes #18733
2025-09-25 14:19:50 +02:00
Stefan Eissing
221b7dda38
transfer: avoid busy loop with tiny speed limit
When a transfer has a speed limit less than 4, the receive loop early
exits without receiving anything, causing a busy loop for that transfer.

Perform that check only after the first receive has been done.

Reported in Joshua's sarif data

Closes #18732
2025-09-25 14:18:35 +02:00
Stefan Eissing
771dd9d9e7
quiche: when ingress processing fails, return that error code
Instead of a general CURLE_RECV_ERROR.

Reported in Joshua's sarif data

Closes #18730
2025-09-25 14:17:39 +02:00
Stefan Eissing
dec661c81c
wolfssl: fix error check in shutdown
When trying to send the TLS shutdown, use the return code
to check for the cause.

Reported in Joshua's sarif data

Closes #18729
2025-09-25 14:16:56 +02:00
Stefan Eissing
15b4b96188
rustls: fix comment describing cr_recv()
The comments on `cf_recv()` function were outdated and described
calling conventions that no longer are true.

Reported in Joshua's sarif data

Closes #18728
2025-09-25 14:14:02 +02:00
Stefan Eissing
e02cbe94ff
mbedtls: check result of setting ALPN
The result of setting the negotiated ALPN was not checked, leading
to reporting success when it should not have.

Reported in Joshua's sarif data

Closes #18727
2025-09-25 14:13:09 +02:00