By just glancing at the code, it looks like there is a memleak if the
call to Curl_inet_pton() fails. Looking closer, it is clear that the
call to Curl_inet_pton() can not fail, so the code will never leak
memory. However, we can make this obvious by moving the allocation
after the if-statement.
Closes https://github.com/curl/curl/pull/7796
Commit b5a434f7f0 inhibits the warning
on implicit fallthrough cases, since the current coding of indicating
fallthrough with comments is falling out of fashion with new compilers.
This attempts to make the issue smaller by rewriting fallthroughs to no
longer fallthrough, via either breaking the cases or turning switch
statements into if statements.
lib/content_encoding.c: the fallthrough codepath is simply copied
into the case as it's a single line.
lib/http_ntlm.c: the fallthrough case skips a state in the state-
machine and fast-forwards to NTLMSTATE_LAST. Do this before the
switch statement instead to set up the states that we actually
want.
lib/http_proxy.c: the fallthrough is just falling into exiting the
switch statement which can be done easily enough in the case.
lib/mime.c: switch statement rewritten as if statement.
lib/pop3.c: the fallthrough case skips to the next state in the
statemachine, do this explicitly instead.
lib/urlapi.c: switch statement rewritten as if statement.
lib/vssh/wolfssh.c: the fallthrough cases fast-forwards the state
machine, do this by running another iteration of the switch
statement instead.
lib/vtls/gtls.c: switch statement rewritten as if statement.
lib/vtls/nss.c: the fallthrough codepath is simply copied into the
case as it's a single line. Also twiddle a comment to not be
inside a non-brace if statement.
Closes: #7322
See-also: #7295
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
... as the previously used function DES_set_key() will in some cases
reject using a key that it deems "weak" which will cause curl to
continue using the unitialized buffer content as key instead.
Assisted-by: Harry Sintonen
Fixes#7779Closes#7781
Triggered before a request is made but after a connection is set up
Changes:
- callback: Update docs and callback for pre-request callback
- Add documentation for CURLOPT_PREREQDATA and CURLOPT_PREREQFUNCTION,
- Add redirect test and callback failure test
- Note that the function may be called multiple times on a redirection
- Disable new 2086 test due to Windows weirdness
Closes#7477
- file://host.name/path/file.txt is a valid UNC path
\\host.name\path\files.txt to a non-local file transformed into URI
(RFC 8089 Appendix E.3)
- UNC paths on other OSs must be smb: URLs
Closes#7366
Add curl_url_strerror() to convert CURLUcode into readable string and
facilitate easier troubleshooting in programs using URL API.
Extend CURLUcode with CURLU_LAST for iteration in unit tests.
Update man pages with a mention of new function.
Update example code and tests with new functionality where it fits.
Closes#7605
On connection shutdown, a new TLS session ticket may arrive after the
SSL session cache has already been destructed. In this case, the new
SSL session cannot be added to the SSL session cache.
The callers of Curl_ssl_addsessionid() need to know whether the SSL
session has been added to the cache. If it has not been added, the
reference counter of the SSL session must not be incremented, or memory
used by the SSL session must be freed. This is now possible with the new
output parameter "added" of Curl_ssl_addsessionid().
Fixes#7683Closes#7752
Previously this code used a compile time constant, meaning that libcurl
always reported the libssh2 version that libcurl was built with. This
could differ from the libssh2 version actually being used. The new code
uses the CURL_LIBSSH2_VERSION macro, which is defined in ssh.h. The
macro calls the libssh2_version function if it is available, otherwise
it falls back to the compile time version.
Closes https://github.com/curl/curl/pull/7768
When the "reason phrase" in the HTTP status line starts with a digit,
that was treated as the forth response code digit and curl would claim
the response to be non-compliant.
Added test 1466 to verify this case.
Regression brought by 5dc594e44f
Reported-by: Glenn de boer
Fixes#7738Closes#7739
Regression from 3cb8a74867 (releasde in 7.79.0). That change moved
transfer oriented inits to before the check but also erroneously moved a
few connection oriented ones, which causes problems.
Reported-by: Evangelos Foutras
Fixes#7730Closes#7731
When setting a blank expire string, meaning unlimited, curl would pass
TIME_T_MAX to getime_r() when creating the output, while on 64 bit
systems such a large value cannot be convetered to a tm struct making
curl to exit the loop with an error instead. It can't be converted
because the year it would represent doesn't fit in the 'int tm_year'
field!
Starting now, unlimited expiry is instead handled differently by using a
human readable expiry date spelled out as "unlimited" instead of trying
to use a distant actual date.
Test 1660 and 1915 have been updated to help verify this change.
Reported-by: Jonathan Cardoso
Fixes#7720Closes#7721
The VALID_SOCK() macro was made to only check for FD_SETSIZE if curl was
built to use select(), even though the curl_multi_fdset() function
always and unconditionally uses FD_SET and needs the check.
Reported-by: 0xee on github
Fixes#7718Closes#7719
If a server pipelines future responses within the STARTTLS response, the
former are preserved in the pingpong cache across TLS negotiation and
used as responses to the encrypted commands.
This fix detects pipelined STARTTLS responses and rejects them with an
error.
CVE-2021-22947
Bug: https://curl.se/docs/CVE-2021-22947.html
In imap and pop3, check if TLS is required even when capabilities
request has failed.
In ftp, ignore preauthentication (230 status of server greeting) if TLS
is required.
Bug: https://curl.se/docs/CVE-2021-22946.html
CVE-2021-22946
It should not refer to the uagent string that is allocated and created
for the end server http request, as that pointer may be cleared on
subsequent CONNECT requests.
Added test case 1184 to verify.
Reported-by: T200proX7 on github
Fixes#7705Closes#7707
ngtcp2_conn_client_new and nghttp3_conn_client_new are now macros.
Check the wrapped functions instead.
ngtcp2_stream_close callback now takes flags parameter.
Closes#7709
Thus function was written to avoid doing multiple connection data
initializations, which is fine, but since it also initiates stream
related data it is crucial that it doesn't skip those even if called
again for the same connection. Solved by moving the stream
initializations before the "doing-it-again" check.
Reported-by: Inho Oh
Fixes#7630Closes#7692
We have and provide Curl_strerror() internally for a reason: strerror()
is not necessarily thread-safe so we should always try to avoid it.
Extended checksrc to warn for this, but feature the check disabled by
default and only enable it in lib/
Closes#7685
Use dynamic memory allocation for the buffer used in checking "pinned
public key". The PUB_DER_MAX_BYTES parameter with default settings is
set to a value greater than 2kB.
Co-authored-by: Daniel Stenberg
Closes#7586
Regression. In d6a37c23a3 (7.75.0) we removed the duplicated storage
(connection + easy handle), so this info needs be extracted again even
for re-used connections.
Add test 435 to verify
Reported-by: Max Dymond
Fixes#7660Closes#7662
This adds support for the previously unhandled supplemental data which
in -v output was printed like:
TLSv1.2 (IN), TLS header, Unknown (23):
These will now be printed with proper annotation:
TLSv1.2 (OUT), TLS header, Supplemental data (23):
Closes#7652
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
