Commit Graph

47 Commits

Author SHA1 Message Date
Stefan Eissing
eb14705280
protocol source, all about protocols and uri schemes
Add protocol.h and protocol.c containing all about libcurl's
known URI schemes and their protocol handlers (so they exist).

Moves the scheme definitions from the various sources files into
protocol.c. Schemes are known and used, even of the protocol
handler is not build or just not implemented at all.

Closes #20906
2026-03-16 08:39:02 +01:00
Stefan Eissing
f50446f6da
lib: keepon improving
Improve the name, type and handling of `data->req.keepon`:

- Rename `keepon` to `io_flags`
- make `io_flags` and `uint8_t` and reposition in struct
- Rename `KEEP_*` defines to `REQ_IO_*`, move to request.h
- Replace all direct bit tests to `CURL_REQ_WANT_*` use
- Replace all direct bit manipulations with new macros

Closes #20905
2026-03-15 12:48:03 +01:00
Viktor Szakats
3058ed3df8
lib: use lib source directory as base include path
Backtrack on previous change that aimed to solve the wrong `share.h`
being included. It turns out it did not fix this issue. At the same time
it introduced relative header filenames and the need to include the same
headers differently depending on the source files' location, reducing
readability and editability.

Replace this method by re-adding curl's lib source directory to the
header path and addressing headers by the their full, relative name to
that base directory. Aligning with this method already used in src and
tests.

With these advantages:
- makes includes easier to read, recognize, grep, sort, write, and copy
  between sources,
- syncs the way these headers are included across curl components,
- avoids the ambiguity between system `schannel.h`, `rustls.h` vs.
  local headers using the same names in `lib/vtls`,
- silences clang-tidy `readability-duplicate-include` checker, which
  detects the above issue,
  Ref: https://clang.llvm.org/extra/clang-tidy/checks/readability/duplicate-include.html
- possibly silences TIOBE coding standard warnings:
  `6.10.2.a: Don't use relative paths in #include statements.`
- long shot: it works well with concatenated test sources, for
  clang-tidy-friendly custom unity builds. Ref: #20667

Slight downside: it's not enforced.

If there happens to be a collision between a local `lib/*.h` header and
a system one, the solution is to rename (possibly with its `.c`
counterpart) into the `curl_` namespace. This is also the method used by
curl in the past.

Also:
- curlx/inet_pton: reduce scope of an include.
- toolx/tool_time: apply this to an include, and update VS project
  files accordingly. Also dropping unnecessary lib/curlx header path.
- clang-tidy: enable `readability-duplicate-include`.

Follow-up to 3887069c66 #19676
Follow-up to 625f2c1644 #16991 #16949

Closes #20623
2026-02-23 16:00:42 +01:00
Viktor Szakats
d445f2d930
lib: skip compiling code with features disabled
In non-SSL, non-SSH, non-H3, non-AppleSecTrust builds.

Also:
- drop unused internal macro `SSL_SYSTEM_VERIFIER`.

Closes #20587
2026-02-13 15:48:23 +01:00
Viktor Szakats
97a294688f
ssh: dedupe state change function
Closes #20473
2026-01-30 13:27:03 +01:00
Daniel Stenberg
8edc0338f3
lib: separate scheme info from protocol implementation
This allows builds know about all schemes - but only have the protocol
implementations for those actually built-in.

It further allows multiple protocols to reuse the same protocol setup
and functions for both TLS and non-TLS implementations instead of
needing two (or more) structs.

The scheme information is now in 'struct Curl_scheme' and all the
function pointers for each scheme/protocol implementation are in struct
Curl_protocol.

The URL API now always work with all known protocols.

Closes #20351
2026-01-19 23:15:13 +01:00
Viktor Szakats
7032982896
tidy-up: miscellaneous
- asyn-thrdd.c: scope an include.
- apply more clang-format suggestions.
- tidy-up PP guard comments.
- delete empty line from the top of headers.
- add empty line after `curl_setup.h` include where missing.
- fix indent.
- CODE_STYLE.md: add `strcpy`.
  Follow-up to 8636ad55df #20088
- lib1901.c: drop unnecessary line.
  Follow-up to 436e67f65b #20076

Closes #20070
2025-12-26 22:06:09 +01:00
Viktor Szakats
e78a466ebd
lib: drop unused protocol headers
- drop unused `http.h` includes.
- drop unused `http1.h` include.
- drop unused `http2.h` includes.
- vssh/ssh.h: drop unused `vssh.h` include.
- urldata.h: drop unused protocol includes.
- url: include `smtp.h` directly.
- rtsp.h: include directly where used.
- imap, smtp: drop redundant include, move another from .h to .c.

Verified with an all non-unity CI run.

Closes #20093
2025-12-25 12:00:22 +01:00
Viktor Szakats
2253bc330f
lib/subdirs: fix formatting nits
Closes #19757
2025-11-30 11:01:50 +01:00
Stefan Eissing
12a3182fc3
ssh: tracing and better pollset handling
Remove connection member `waitfor` and keep it in the SSH connection
meta. Add `ssh` to supported tracing features, convert many DEBUGF
printgs to traces.

Closes #19745
2025-11-28 16:05:43 +01:00
Viktor Szakats
af4c789e00
badwords: fix two exceptions and drop them
Also:
- extend `dir` rule to exclude C assignments.

Closes #19532
2025-11-14 17:32:04 +01:00
Daniel Stenberg
c545e10fa7
sftp: fix range downloads in both SSH backends
When asking for the last N bytes of a file, and that size was larger
than the file size, it would miss the first byte due to a logic error.

The fixed range parser is now made a common function in the file now
renamed to vssh.c (from curl_path.c) - used by both backends.

Unit test 2605 verifies the parser.

Reported-by: Stanislav Fort (Aisle Research)
Closes #19460
2025-11-11 14:51:22 +01:00
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
b011e3fcfb
vssh: drop support for wolfSSH
The implementation was incomplete and lesser than the other backends. No
one ever reported a bug or requested enhancements for this, indicating
that this backend was never used.

Closes #18700
2025-09-24 22:59:33 +02:00
Eshan Kelkar
f7af8adadd
libssh: Use sftp_aio instead of sftp_async for sftp_recv
This commit replaces the usage of the old deprecated sftp_async API with
the new sftp_aio API for remote file reading.

Signed-off-by: Eshan Kelkar <eshankelkar@galorithm.com>

Closes #17440
2025-07-28 22:35:39 +02:00
Viktor Szakats
89771d19d5
tidy-up: prefer ifdef/ifndef for single checks
Closes #18018
2025-07-27 22:35:17 +02:00
Daniel Stenberg
f048546c87
libssh2: remove use of 'initialised' for cleanup
It could previously cause a memory-leak when the cleanup was not
performed because it was not set.

Reported-by: albrechtd on github
Fixes #17819
Closes #17837
2025-07-07 12:01:22 +02:00
Daniel Stenberg
74cfba6a67
libssh2: remove the 'actualcode' struct field
Return and use CURLcode to a larger extent to avoid the complicated
double return code setup previously used.

Closes #17369
2025-05-16 14:56:59 +02:00
Stefan Eissing
09fed29460
ssh: move easy handle/connection protocol structs to meta
Closes #17273
2025-05-08 11:56:50 +02:00
Daniel Stenberg
ba07dcd27b
lib: use BIT() instead of bool in structs more
Since it makes use of bitfields on supported platforms, it saves a few
bytes memory. Might as well use it consistently.

Closes #17114
2025-04-22 08:01:08 +02:00
Daniel Stenberg
625f2c1644
lib: include files using known path
by including headers using "../[header]" when done from C files in
subdirectories, we do not need to specify the lib source dir as an
include path and we reduce the risk of header name collisions with
headers in the SDK using the same file names.

Idea-by: Kai Pastor

Ref: #16949
Closes #16991
2025-04-08 17:00:00 +02:00
Stefan Eissing
646b2d6ca2
dynbuf: assert init on free
Add a DEBUGASSERT() in Curl_dyn_free() that checks that Curl_dyn_init()
has been performed before.

Fix code places that did it wrong.

Fixes #16725
Closes #16775
2025-03-24 09:53:40 +01:00
Viktor Szakats
eebb1c1c15
libssh2: drop obsolete macros and version checks
Follow-up to 553248f501 #16199

Closes #16292
2025-02-12 09:04:13 +01:00
Daniel Stenberg
ba92296279
libssh: drop support for libssh older than 0.9.0
libssh 0.9.0 was shipped on June 28 2019 and is the first version
featuring the knownhosts API

Drop libssh from the GHA/linux-old CI job since it gets a libssh 0.7.3
version, too old for us now.

Closes #16200
2025-02-06 22:27:13 +01:00
Daniel Stenberg
553248f501
libssh2: raise lowest supported version to 1.2.8
Shipped on April 5 2011

Closes #16199
2025-02-06 10:02:29 +01:00
xiaofeng
8b259498be
libssh: use libssh sftp_aio to upload file
Support async sftp upload for curl built with libssh.

Closes #15625
2024-12-02 21:33:24 +01:00
Daniel Stenberg
083b4ab6e4
libssh2: put the readdir buffers into struct
... instead of separate malloc() calls:

- removes two mallocs (and associated error handling paths)
- makes cleanup easier

Also reduce maximum SFTP file path lengths to 1024 bytes universally
everywhere. Using the system's own MAX_PATH did not make sense since
this is mostly about getting a remote file name.

Closes #15285
2024-10-16 11:55:47 +02:00
Viktor Szakats
ac207bf567
ssh: deduplicate SSH backend includes (and fix libssh cmake unity build)
For libssh, it fixes a "unity" build issue where libssh deprecation
warnings were not suppressed before this patch, because the suppression
macro was only set before just one of the two `libssh.h` includes.
If the other was compiled first in unity mode, the warnings appeared.

Seen in local curl-for-win build (`CW_CONFIG=test-x64-libssh-quictls`)
with libssh 0.11.0. (Also in a GHA/macos cmake job upcoming in #14614)

Use this opportunity to drop duplicate SSH header includes from the SSH
modules. It's enough to include them via the common `ssh.h` header.

Closes #14612
2024-08-20 21:34:24 +02:00
Daniel Stenberg
c074ba64a8
code: language cleanup in comments
Based on the standards and guidelines we use for our documentation.

 - expand contractions (they're => they are etc)
 - host name = > hostname
 - file name => filename
 - user name = username
 - man page => manpage
 - run-time => runtime
 - set-up => setup
 - back-end => backend
 - a HTTP => an HTTP
 - Two spaces after a period => one space after period

Closes #14073
2024-07-01 22:58:55 +02:00
Viktor Szakats
0887297100
lib/v*: tidy up types and casts
Also add a couple of negative checks.

Cherry-picked from #13489
Closes #13622
2024-06-02 19:27:17 +02:00
Daniel Stenberg
8d3ce930f8
vssh: remove the #ifdef for Curl_ssh_init, use empty macro
In the same style as other init calls
2023-10-20 22:56:01 +02:00
Daniel Stenberg
f7a3fae4cb
libssh: use dynbuf instead of realloc
When building lines to show for SFTP directory listings.

Closes #10778
2023-03-16 23:32:22 +01:00
Daniel Stenberg
d2d0e60012
libssh2: remove unused variable from libssh2's struct
Closes #10777
2023-03-16 13:44:48 +01:00
Daniel Stenberg
2bc1d775f5
copyright: update all copyright lines and remove year ranges
- they are mostly pointless in all major jurisdictions
- many big corporations and projects already don't use them
- saves us from pointless churn
- git keeps history for us
- the year range is kept in COPYING

checksrc is updated to allow non-year using copyright statements

Closes #10205
2023-01-03 09:19:21 +01:00
Viktor Szakats
0c327464ca
tidy-up: delete parallel/unused feature flags
Detecting headers and lib separately makes sense when headers come in
variations or with extra ones, but this wasn't the case here. These were
duplicate/parallel macros that we had to keep in sync with each other
for a working build. This patch leaves a single macro for each of these
dependencies:

- Rely on `HAVE_LIBZ`, delete parallel `HAVE_ZLIB_H`.

  Also delete CMake logic making sure these two were in sync, along with
  a toggle to turn off that logic, called `CURL_SPECIAL_LIBZ`.

  Also delete stray `HAVE_ZLIB` defines.

  There is also a `USE_ZLIB` variant in `lib/config-dos.h`. This patch
  retains it for compatibility and deprecates it.

- Rely on `USE_LIBSSH2`, delete parallel `HAVE_LIBSSH2_H`.

  Also delete `LIBSSH2_WIN32`, `LIBSSH2_LIBRARY` from
  `winbuild/MakefileBuild.vc`, these have a role when building libssh2
  itself. And `CURL_USE_LIBSSH`, which had no use at all.

  Also delete stray `HAVE_LIBSSH2` defines.

- Rely on `USE_LIBSSH`, delete parallel `HAVE_LIBSSH_LIBSSH_H`.

  Also delete `LIBSSH_WIN32`, `LIBSSH_LIBRARY` and `HAVE_LIBSSH` from
  `winbuild/MakefileBuild.vc`, these were the result of copy-pasting the
  libssh2 line, and were not having any use.

- Delete unused `HAVE_LIBPSL_H` and `HAVE_LIBPSL`.

Reviewed-by: Daniel Stenberg

Closes #9652
2022-10-06 15:30:13 +00:00
Daniel Stenberg
ef22d5c42a
libssh: skip the fake-close when libssh does the right thing
Starting in libssh 0.10.0 ssh_disconnect() will no longer close our
socket. Instead it will be kept alive as we want it, and it is our
responsibility to close it later.

Ref: #8718
Ref: https://gitlab.com/libssh/libssh-mirror/-/merge_requests/240
Closes #9021
2022-06-15 23:43:35 +02:00
max.mehl
ad9bc5976d
copyright: make repository REUSE compliant
Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the file
`.reuse/dep5`.

This commit also adds a Github workflow to check pull requests and adapts
copyright.pl to the changes.

Closes #8869
2022-06-13 09:13:00 +02:00
Daniel Stenberg
1645e9b445
url: check SSH config match on connection reuse
CVE-2022-27782

Reported-by: Harry Sintonen
Bug: https://curl.se/docs/CVE-2022-27782.html
Closes #8825
2022-05-09 23:13:53 +02:00
Daniel Stenberg
63c7668182
version: turn version number functions into returning void
... as we never use the return codes from them.

Reviewed-by: Daniel Gustafsson
Closes #7319
2021-06-30 23:23:34 +02:00
Daniel Stenberg
0c55fbab45
conn: add 'attach' to protocol handler, make libssh2 use it
The libssh2 backend has SSH session associated with the connection but
the callback context is the easy handle, so when a connection gets
attached to a transfer, the protocol handler now allows for a custom
function to get used to set things up correctly.

Reported-by: Michael O'Farrell
Fixes #6898
Closes #7078
2021-05-17 17:57:50 +02:00
Daniel Stenberg
2dcc940959
libssh2: move data from connection object to transfer object
Readdir data, filenames and attributes are strictly related to the
transfer and not the connection. This also reduces the total size of the
fixed connectdata struct.

Closes #6519
2021-01-25 17:07:57 +01:00
Erik Olsson
0a5827571f lib: save a bit of space with some structure packing
- Reorder some internal struct members so that less padding is used.

This is an attempt at saving a bit of space by packing some structs
(using pahole to find the holes) where it might make sense to do
so without losing readability.

I.e., I tried to avoid separating fields that seem grouped
together (like the cwd... fields in struct ftp_conn for instance).
Also abstained from touching fields behind conditional macros as
that quickly can get complicated.

Closes https://github.com/curl/curl/pull/6483
2021-01-20 22:52:34 -05:00
Daniel Stenberg
4d2f800677
curl.se: new home
Closes #6172
2020-11-04 23:59:47 +01:00
Daniel Stenberg
9a844625c4
libssh2: fix transport over HTTPS proxy
The fix in #6021 was not enough. This fix makes sure SCP/SFTP content
can also be transfered over a HTTPS proxy.

Fixes #6113
Closes #6128
2020-10-29 09:31:31 +01:00
Daniel Stenberg
44645ca8b0
libssh2: convert over to use dynbuf
In my very basic test that lists sftp://127.0.0.1/tmp/, this patched
code makes 161 allocations compared to 194 in git master. A 17%
reduction.

Closes #5336
2020-05-05 14:54:07 +02:00
Daniel Stenberg
6773c7ca65
wolfSSH: new SSH backend
Adds support for SFTP (not SCP) using WolfSSH.

Closes #4231
2020-01-12 17:19:12 +01:00
Jay Satiro
1f6a18685e lib: Move lib/ssh.h -> lib/vssh/ssh.h
Follow-up to 5b2d703 which moved ssh source files to vssh.

Closes https://github.com/curl/curl/pull/4609
2019-11-17 23:27:39 -05:00