Commit Graph

238 Commits

Author SHA1 Message Date
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
Emanuele Torre
f198d33e8d
checksrc: disallow spaces before labels
Out of 415 labels throughout the code base, 86 of those labels were
not at the start of the line. Which means labels always at the start of
the line is the favoured style overall with 329 instances.

Out of the 86 labels not at the start of the line:
* 75 were indented with the same indentation level of the following line
* 8 were indented with exactly one space
* 2 were indented with one fewer indentation level then the following
  line
* 1 was indented with the indentation level of the following line minus
  three space (probably unintentional)

Co-Authored-By: Viktor Szakats

Closes #11134
2023-05-18 20:45:04 +02:00
Daniel Stenberg
9a607fd728
telnet: make MSVC ignore warning for assignment within conditional
Follow-up to d92a5007b6

Closes #10859
2023-03-29 13:07:17 +02:00
Kamil Dudka
d92a5007b6 telnet: simplify the implementation of str_is_nonascii()
There is no need to traverse the string twice.

Closes #10852
2023-03-28 15:41:55 +02:00
Daniel Stenberg
538b1e79a6
telnet: only accept option arguments in ascii
To avoid embedded telnet negotiation commands etc.

Reported-by: Harry Sintonen
Closes #10728
2023-03-10 17:43:18 +01:00
Daniel Stenberg
cbd3fd7cbb
telnet: error correctly for WS set to "x[num]"
Follow-up to e4f93be9d5
Reported-by: Harry Sintonen
Closes #10606
2023-02-24 23:00:26 +01:00
Daniel Stenberg
9672cc640c
telnet: parse NEW_ENVIRON without sscanf
Closes #10596
2023-02-24 16:45:58 +01:00
Daniel Stenberg
e4f93be9d5
telnet: parse the WS= argument without sscanf
Closes #10596
2023-02-24 16:45:56 +01:00
Daniel Stenberg
0c28ba2faa
telnet: parse telnet options without sscanf
Closes #10596
2023-02-24 16:45:42 +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
Daniel Stenberg
4f20188ac6
smb/telnet: do not free the protocol struct in *_done()
It is managed by the generic layer.

Reported-by: Trail of Bits

Closes #10112
2022-12-19 12:33:19 +01:00
Stefan Eissing
dafdb20a26
lib: connection filters (cfilter) addition to curl:
- general construct/destroy in connectdata
 - default implementations of callback functions
 - connect: cfilters for connect and accept
 - socks: cfilter for socks proxying
 - http_proxy: cfilter for http proxy tunneling
 - vtls: cfilters for primary and proxy ssl
 - change in general handling of data/conn
 - Curl_cfilter_setup() sets up filter chain based on data settings,
   if none are installed by the protocol handler setup
 - Curl_cfilter_connect() boot straps filters into `connected` status,
   used by handlers and multi to reach further stages
 - Curl_cfilter_is_connected() to check if a conn is connected,
   e.g. all filters have done their work
 - Curl_cfilter_get_select_socks() gets the sockets and READ/WRITE
   indicators for multi select to work
 - Curl_cfilter_data_pending() asks filters if the have incoming
   data pending for recv
 - Curl_cfilter_recv()/Curl_cfilter_send are the general callbacks
   installed in conn->recv/conn->send for io handling
 - Curl_cfilter_attach_data()/Curl_cfilter_detach_data() inform filters
   and addition/removal of a `data` from their connection
 - adding vtl functions to prevent use of Curl_ssl globals directly
   in other parts of the code.

Reviewed-by: Daniel Stenberg
Closes #9855
2022-11-11 15:17:51 +01:00
Rose
f151ec6c10 lib: fix some type mismatches and remove unneeded typecasts
Many of these castings are unneeded if we change the variables to work
better with each other.

Ref: https://github.com/curl/curl/pull/9823

Closes https://github.com/curl/curl/pull/9835
2022-11-08 03:11:01 -05:00
Daniel Stenberg
52cc4a85fd
style: use space after comment start and before comment end
/* like this */

/*not this*/

checksrc is updated accordingly

Closes #9828
2022-10-30 22:31:29 +01:00
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
6968fb9d54
lib: remove exclamation marks
... from infof() and failf() calls. Make them less attention seeking.

Closes #8713
2022-04-16 11:55:05 +02:00
Daniel Stenberg
7d600ad1c3
urldata: remove conn->bits.user_passwd
The authentication status should be told by the transfer and not the
connection.

Reported-by: John H. Ayad
Fixes #8449
Closes #8451
2022-02-16 10:28:31 +01:00
Daniel Stenberg
894f6ec730
telnet: fix option parser to not send uninitialized contents
CVS-2021-22925

Reported-by: Red Hat Product Security
Bug: https://curl.se/docs/CVE-2021-22925.html
2021-07-20 09:36:06 +02:00
Daniel Stenberg
e7416cfd2b
infof: remove newline from format strings, always append it
- the data needs to be "line-based" anyway since it's also passed to the
  debug callback/application

- it makes infof() work like failf() and consistency is good

- there's an assert that triggers on newlines in the format string

- Also removes a few instances of "..."

- Removes the code that would append "..." to the end of the data *iff*
  it was truncated in infof()

Closes #7357
2021-07-07 22:54:01 +02:00
Daniel Stenberg
6793332eba
CURLE_SETOPT_OPTION_SYNTAX: new error name for wrong setopt syntax
For options that pass in lists or strings that are subsequently parsed
and must be correct. This broadens the scope for the option previously
known as CURLE_TELNET_OPTION_SYNTAX but the old name is of course still
provided as a #define for existing applications.

Closes #7175
2021-06-02 23:03:55 +02:00
Harry Sintonen
39ce47f219
telnet: check sscanf() for correct number of matches
CVE-2021-22898

Bug: https://curl.se/docs/CVE-2021-22898.html
2021-05-24 07:56:05 +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
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
a304051620
lib: more conn->data cleanups
Closes #6479
2021-01-19 09:14:51 +01:00
Daniel Stenberg
215db086e0
lib: pass in 'struct Curl_easy *' to most functions
... in most cases instead of 'struct connectdata *' but in some cases in
addition to.

- We mostly operate on transfers and not connections.

- We need the transfer handle to log, store data and more. Everything in
  libcurl is driven by a transfer (the CURL * in the public API).

- This work clarifies and separates the transfers from the connections
  better.

- We should avoid "conn->data". Since individual connections can be used
  by many transfers when multiplexing, making sure that conn->data
  points to the current and correct transfer at all times is difficult
  and has been notoriously error-prone over the years. The goal is to
  ultimately remove the conn->data pointer for this reason.

Closes #6425
2021-01-17 23:56:09 +01:00
Emil Engler
725ec470e2
language: s/behaviour/behavior/g
We currently use both spellings the british "behaviour" and the american
"behavior". However "behavior" is more used in the project so I think
it's worth dropping the british name.

Closes #6395
2021-01-02 23:35:59 +01:00
Daniel Stenberg
a95a6ce6b8
urldata: remove 'void *protop' and create the union 'p'
... to avoid the use of 'void *' for the protocol specific structs done
per transfer.

Closes #6238
2020-11-23 16:16:16 +01:00
Daniel Stenberg
4d2f800677
curl.se: new home
Closes #6172
2020-11-04 23:59:47 +01:00
Daniel Stenberg
6434a73984
Curl_handler: add 'family' to each protocol
Makes get_protocol_family() faster and it moves the knowledge about the
"families" to each protocol handler, where it belongs.

Closes #5986
2020-09-21 23:30:16 +02:00
Marc Hoersken
8bdc4f8aee
telnet.c: depend on static requirement of WinSock version 2
Drop dynamic loading of ws2_32.dll and instead rely on the
imported version which is now required to be at least 2.2.

Reviewed-by: Marcel Raad
Reviewed-by: Jay Satiro
Reviewed-by: Daniel Stenberg
Reviewed-by: Viktor Szakats

Closes #5854
2020-09-02 16:33:03 +02:00
Daniel Stenberg
0f55269aff
copyright: update mismatched copyright years 2020-06-22 11:55:34 +02:00
Marc Hoersken
3186f50054
timeouts: move ms timeouts to timediff_t from int and long
Now that all functions in select.[ch] take timediff_t instead
of the limited int or long, we can remove type conversions
and related preprocessor checks to silence compiler warnings.

Avoiding conversions from time_t was already done in 842f73de.

Based upon #5262
Supersedes #5214, #5220 and #5221
Follow up to #5343 and #5479
Closes #5490
2020-06-06 20:05:58 +02:00
Jay Satiro
9c1806ae46 build: Disable Visual Studio warning "conditional expression is constant"
- Disable warning C4127 "conditional expression is constant" globally
  in curl_setup.h for when building with Microsoft's compiler.

This mainly affects building with the Visual Studio project files found
in the projects dir.

Prior to this change the cmake and winbuild build systems already
disabled 4127 globally for when building with Microsoft's compiler.
Also, 4127 was already disabled for all build systems in the limited
circumstance of the WHILE_FALSE macro which disabled the warning
specifically for while(0). This commit removes the WHILE_FALSE macro and
all other cruft in favor of disabling globally in curl_setup.

Background:

We have various macros that cause 0 or 1 to be evaluated, which would
cause warning C4127 in Visual Studio. For example this causes it:

    #define Curl_resolver_asynch() 1

Full behavior is not clearly defined and inconsistent across versions.
However it is documented that since VS 2015 Update 3 Microsoft has
addressed this somewhat but not entirely, not warning on while(true) for
example.

Prior to this change some C4127 warnings occurred when I built with
Visual Studio using the generated projects in the projects dir.

Closes https://github.com/curl/curl/pull/4658
2019-12-01 19:01:02 -05:00
Daniel Stenberg
65eb65fde6
urldata: simplify bytecounters
- no need to have them protocol specific

- no need to set pointers to them with the Curl_setup_transfer() call

- make Curl_setup_transfer() operate on a transfer pointer, not
  connection

- switch some counters from long to the more proper curl_off_t type

Closes #3627
2019-03-01 17:30:34 +01:00
Daniel Stenberg
dcd6f81025
snprintf: renamed and we now only use msnprintf()
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
2018-11-23 08:26:51 +01:00
Marcel Raad
15ed9f87e3
curl-compilers: enable -Wimplicit-fallthrough=4 for GCC
This enables level 4 instead of the default level 3, which of the
currently used comments only allows /* FALLTHROUGH */ to silence the
warning.

Closes https://github.com/curl/curl/pull/2747
2018-08-21 18:53:45 +02:00
Marcel Raad
25d2a1bae7
Silence GCC 8 cast-function-type warnings
On Windows, casting between unrelated function types is fine and
sometimes even necessary, so just use an intermediate cast to
(void (*) (void)) to silence the warning as described in [0].

[0] https://gcc.gnu.org/onlinedocs/gcc-8.1.0/gcc/Warning-Options.html

Closes https://github.com/curl/curl/pull/2860
2018-08-11 19:19:03 +02:00
Rikard Falkeborn
489ac01756
telnet: Remove unused macros TELOPTS and TELCMDS
Their usage was removed in 3a145180cc.

Closes #2852
2018-08-09 12:36:58 +02:00
Gisle Vanem
ab4cf99694
telnet: fix clang warnings
telnet.c(1401,28): warning: cast from function call of type 'int' to
non-matching type 'HANDLE' (aka 'void *') [-Wbad-function-cast]

Fixes #2696
Closes #2700
2018-07-01 12:45:27 +02:00
Marian Klymov
c45360d463
cppcheck: fix warnings
- Get rid of variable that was generating false positive warning
(unitialized)

- Fix issues in tests

- Reduce scope of several variables all over

etc

Closes #2631
2018-06-11 11:14:48 +02:00
Viktor Szakats
4bd91bc474 spelling fixes
Detected using the `codespell` tool (version 1.13.0).

Also secure and fix an URL.
2018-06-03 12:14:45 +00:00
Rikard Falkeborn
8ea5d41fe0
strictness: correct {infof, failf} format specifiers
Closes #2623
2018-05-31 11:34:32 +02:00
Daniel Stenberg
cb529b713f
checksrc: make sure sizeof() is used *with* parentheses
... and unify the source code to adhere.

Closes #2563
2018-05-21 23:21:47 +02:00
Daniel Gustafsson
2f13e3d23d
checksrc: force indentation of lines after an else
This extends the INDENTATION case to also handle 'else' statements
and require proper indentation on the following line. Also fixes the
offending cases found in the codebase.

Closes #2532
2018-04-27 00:51:35 +02:00
Viktor Szakats
7e35eb7729 spelling fixes
Detected using the `codespell` tool.

Also contains one URL protocol upgrade.

Closes https://github.com/curl/curl/pull/2334
2018-02-23 23:29:01 +00:00
Daniel Stenberg
5d543fe906 time: rename Curl_tvnow to Curl_now
... since the 'tv' stood for timeval and this function does not return a
timeval struct anymore.

Also, cleaned up the Curl_timediff*() functions to avoid typecasts and
clean up the descriptive comments.

Closes #2011
2017-10-25 18:48:05 +02:00
Daniel Stenberg
b9d25f9a6b timediff: return timediff_t from the time diff functions
... to cater for systems with unsigned time_t variables.

- Renamed the functions to curlx_timediff and Curl_timediff_us.

- Added overflow protection for both of them in either direction for
  both 32 bit and 64 bit time_ts

- Reprefixed the curlx_time functions to use Curl_*

Reported-by: Peter Piekarski
Fixes #2004
Closes #2005
2017-10-25 09:54:37 +02:00
Daniel Stenberg
20acb58a38
code style: use space after semicolon 2017-09-12 09:50:24 +02:00
Daniel Stenberg
e5743f08e7
code style: use spaces around pluses 2017-09-11 09:29:50 +02:00
Daniel Stenberg
6b84438d9a
code style: use spaces around equals signs 2017-09-11 09:29:50 +02:00