When failing to set the 1.3 cipher suite, the wrong string pointer would
be used in the error message. Most often saying "(nil)".
Reported-by: Ricky-Tigg on github
Fixes#3178Closes#3180
Ensure to clear the session object in case the libssh2 initialization
fails.
It could be argued that the libssh2 error function should be called to
get a proper error message in this case. But since the only error path
in libssh2_knownhost_init() is memory a allocation failure it's safest
to avoid since the libssh2 error handling allocates memory.
Closes#3179
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
Compiling on _WIN32 and with USE_LWIPSOCK, causes this error:
curl_rtmp.c(223,3): error: use of undeclared identifier 'setsockopt'
setsockopt(r->m_sb.sb_socket, SOL_SOCKET, SO_RCVTIMEO,
^
curl_rtmp.c(41,32): note: expanded from macro 'setsockopt'
#define setsockopt(a,b,c,d,e) (setsockopt)(a,b,c,(const char *)d,(int)e)
^
Closes#3155
- Change the inout parameters after all needed memory has been
allocated. Do not change them if something goes wrong.
- Free the allocated temporary strings if strdup() fails.
Closes#3122
Most headerfiles end with a /* <headerguard> */ comment, but it was
missing from some. The comment isn't the most important part of our
code documentation but consistency has an intrinsic value in itself.
This adds header guard comments to the files that were lacking it.
Closes#3158
Reviewed-by: Jay Satiro <raysatiro@yahoo.com>
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
Curl_follow() no longer frees the string. Make sure it happens in the
caller function, like we normally handle allocations.
This bug was introduced with the use of the URL API internally, it has
never been in a release version
Reported-by: Dario Weißer
Closes#3149
For IP addresses in the subject alternative name field, the length
of the IP address (and hence the number of bytes to perform a
memcmp on) is incorrectly calculated to be zero. The code previously
subtracted q from name.end. where in a successful case q = name.end
and therefore addrlen equalled 0. The change modifies the code to
subtract name.beg from name.end to calculate the length correctly.
The issue only affects libcurl with GSKit SSL, not other SSL backends.
The issue is not a security issue as IP verification would always fail.
Fixes#3102Closes#3141
Classic MinGW has neither InitializeCriticalSectionEx nor
GetTickCount64, independent of the target Windows version.
Closes https://github.com/curl/curl/pull/3113
Now FILE transfers send headers to the header callback like HTTP and
other protocols. Also made curl_easy_getinfo(...CURLINFO_PROTOCOL...)
work for FILE in the callbacks.
Makes "curl -i file://.." and "curl -I file://.." work like before
again. Applied the bold header logic to them too.
Regression from c1c2762 (7.61.0)
Reported-by: Shaun Jackman
Fixes#3083Closes#3101
In case a very small buffer was passed to the version function, it could
result in the buffer not being NULL-terminated since strncpy() doesn't
guarantee a terminator on an overflowed buffer. Rather than adding code
to terminate (and handle zero-sized buffers), move to using snprintf()
instead like all the other vtls backends.
Closes#3105
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
Reviewed-by: Viktor Szakats <commit@vszakats.net>
If a !checksrc! disable command specified to ignore zero errors, it was
still added to the ignore block even though nothing was ignored. While
there were no blocks ignored that shouldn't be ignored, the processing
ended with with a warning:
<filename>:<line>:<col>: warning: Unused ignore: LONGLINE (UNUSEDIGNORE)
/* !checksrc! disable LONGLINE 0 */
^
Fix by instead treating a zero ignore as a a badcommand and throw a
warning for that one.
Closes#3096
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
Enable strict and warnings mode for checksrc to ensure we aren't missing
anything due to bugs in the checking code. This uncovered a few things
which are all fixed in this commit:
* several variables were used uninitialized
* several variables were not defined in the correct scope
* the whitelist filehandle was read even if the file didn't exist
* the enable_warn() call when a disable counter had expired was passing
incorrect variables, but since the checkwarn() call is unlikely to hit
(the counter is only decremented to zero on actual ignores) it didn't
manifest a problem.
Closes#3090
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
Reviewed-by: Marcel Raad <Marcel.Raad@teamviewer.com>
The result of a memory allocation should always be checked, as we may
run under memory pressure where even a small allocation can fail. This
adds checking and error handling to a few cases where the allocation
wasn't checked for success. In the ftp case, the freeing of the path
variable is moved ahead of the allocation since there is little point
in keeping it around across the strdup, and the separation makes for
more readable code. In nwlib, the lock is aslo freed in the error path.
Also bumps the copyright years on affected files.
Closes#3084
Reviewed-by: Jay Satiro <raysatiro@yahoo.com>
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
... and libcurl doesn't support any single-letter URL schemes (if there
even exist any) so it should be fairly risk-free.
Reported-by: Marcel Raad
Fixes#3070Closes#3071
Use 'GNUInstallDirs' standard module to set destinations of installed
files.
Use uppercase "CURL" names instead of lowercase "curl" to match standard
'FindCURL.cmake' CMake module:
* https://cmake.org/cmake/help/latest/module/FindCURL.html
Meaning:
* Install 'CURLConfig.cmake' instead of 'curl-config.cmake'
* User should call 'find_package(CURL)' instead of 'find_package(curl)'
Use 'configure_package_config_file' function to generate
'CURLConfig.cmake' file. This will make 'curl-config.cmake.in' template
file smaller and handle components better. E.g. current configuration
report no error if user specified unknown components (note: new
configuration expects no components, report error if user will try to
specify any).
Closes https://github.com/curl/curl/pull/2849
This fixes potential out-of-buffer access on "file:./" URL
$ valgrind curl "file:./"
==24516== Memcheck, a memory error detector
==24516== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
==24516== Using Valgrind-3.11.0 and LibVEX; rerun with -h for copyright info
==24516== Command: /home/even/install-curl-git/bin/curl file:./
==24516==
==24516== Conditional jump or move depends on uninitialised value(s)
==24516== at 0x4C31F9C: strcmp (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==24516== by 0x4EBB315: seturl (urlapi.c:801)
==24516== by 0x4EBB568: parseurl (urlapi.c:861)
==24516== by 0x4EBC509: curl_url_set (urlapi.c:1199)
==24516== by 0x4E644C6: parseurlandfillconn (url.c:2044)
==24516== by 0x4E67AEF: create_conn (url.c:3613)
==24516== by 0x4E68A4F: Curl_connect (url.c:4119)
==24516== by 0x4E7F0A4: multi_runsingle (multi.c:1440)
==24516== by 0x4E808E5: curl_multi_perform (multi.c:2173)
==24516== by 0x4E7558C: easy_transfer (easy.c:686)
==24516== by 0x4E75801: easy_perform (easy.c:779)
==24516== by 0x4E75868: curl_easy_perform (easy.c:798)
Was originally spotted by
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10637
Credit to OSS-Fuzz
Closes#3039
- replace tabs with spaces where possible
- remove line ending spaces
- remove double/triple newlines at EOF
- fix a non-UTF-8 character
- cleanup a few indentations/line continuations
in manual examples
Closes https://github.com/curl/curl/pull/3037
- Treat CURL_SSLVERSION_MAX_NONE the same as
CURL_SSLVERSION_MAX_DEFAULT. Prior to this change NONE would mean use
the minimum version also as the maximum.
This is a follow-up to 6015cef which changed the behavior of setting
the SSL version so that the requested version would only be the minimum
and not the maximum. It appears it was (mostly) implemented in OpenSSL
but not other backends. In other words CURL_SSLVERSION_TLSv1_0 used to
mean use just TLS v1.0 and now it means use TLS v1.0 *or later*.
- Fix CURL_SSLVERSION_MAX_DEFAULT for OpenSSL.
Prior to this change CURL_SSLVERSION_MAX_DEFAULT with OpenSSL was
erroneously treated as always TLS 1.3, and would cause an error if
OpenSSL was built without TLS 1.3 support.
Co-authored-by: Daniel Gustafsson
Fixes https://github.com/curl/curl/issues/2969
Closes https://github.com/curl/curl/pull/3012
In order for this API to fully work for libcurl itself, it now offers a
CURLU_GUESS_SCHEME flag that makes it "guess" scheme based on the host
name prefix just like libcurl always did. If there's no known prefix, it
will guess "http://".
Separately, it relaxes the check of the host name so that IDN host names
can be passed in as well.
Both these changes are necessary for libcurl itself to use this API.
Assisted-by: Daniel Gustafsson
Closes#3018
In the CURLUPART_URL case, there is no codepath which invokes url
decoding so remove the assignment of the urldecode variable. This
fixes the deadstore bug-report from clang static analysis.
Closes#3015
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
The reallocation was using the input pointer for the return value, which
leads to a memory leak on reallication failure. Fix by instead use the
safe internal API call Curl_saferealloc().
Closes#3005
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
Reviewed-by: Nick Zitzmann <nickzman@gmail.com>
ftp_send_command() was using vsnprintf() without including the libcurl
*rintf() replacement header. Fix by including curl_printf.h and also
add curl_memory.h while at it since memdebug.h depends on it.
Closes#2999
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
The failf() macro is the name used for invoking Curl_failf(). While
there isn't a way to turn off failf like there is for infof, but it's
still a good idea to use the macro.
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
Strings broken on multiple rows in the .c file need to have appropriate
whitespace padding on either side of the concatenation point to render
a correct amalgamated string. Fix by adding a space at the occurrences
found.
Closes#2986
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
Commit 8238ba9c5f inadvertently removed
the actual command to be sent from the send buffer in a refactoring.
Add back copying the command into the buffer. Also add more guards
against malformed input while at it.
Closes#2985
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
When erroring out on a request being too large, the existing buffer was
leaked. Fix by explicitly freeing on the way out.
Closes#2966
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
- Use memcpy instead of strncpy to copy a string without termination,
since gcc8 warns about using strncpy to copy as many bytes from a
string as its length.
Suggested-by: Viktor Szakats
Closes https://github.com/curl/curl/issues/2980
Rather than jumping backwards to where failure cleanup happens
to be performed, move the failure case to end of the function
where it is expected per existing coding convention.
Closes#2965
If the formatting fails, we error out on a fatal error and
clean up on the way out. The array was however freed within
the wrong scope and was thus never freed in case the cookies
were written to a file instead of STDOUT.
Closes#2957
Add functionality so that protocols can do custom keepalive on their
connections, when an external API function is called.
Add docs for the new options in 7.62.0
Closes#1641
Sometimes it may be considered a security risk to load an external
OpenSSL configuration automatically inside curl_global_init(). The
configuration option --disable-ssl-auto-load-config disables this
automatism. The Windows build scripts winbuild/Makefile.vs provide a
corresponding option ENABLE_SSL_AUTO_LOAD_CONFIG accepting a boolean
value.
Setting neither of these options corresponds to the previous behavior
loading the external OpenSSL configuration automatically.
Fixes#2724Closes#2791
The gcc typecheck macros and coverity combined made it warn on the 2nd
argument for ERROR_CHECK_SETOPT(). Here's minor rearrange to please it.
Coverity CID 1439115 and CID 1439114.
SEC_E_APPLICATION_PROTOCOL_MISMATCH isn't defined in some versions of
mingw and would require an ifdef otherwise.
Reported-by: Thomas Glanzmann
Approved-by: Marc Hörsken
Bug: https://curl.haxx.se/mail/lib-2018-09/0020.htmlCloses#2950
... and add "MAILINDEX".
As described in #2789, this is a suggested solution. Changing UID=xx to
actually get mail with UID xx and add "MAILINDEX" to get a mail with a
special index in the mail box (old behavior). So MAILINDEX=1 gives the
first non deleted mail in the mail box.
Fixes#2789Closes#2815
CURLE_PEER_FAILED_VERIFICATION makes more sense because Curl_parseX509
does not allocate memory internally as its first argument is a pointer
to the certificate structure. The same error code is also returned by
Curl_verifyhost when its call to Curl_parseX509 fails so the change
makes error handling more consistent.
Transparently. The related curl_multi_setopt() options all still returns
OK when pipelining is selected.
To re-enable the support, the single line change in lib/multi.c needs to
be reverted.
See docs/DEPRECATE.md
Closes#2705
According to RFC6265 section 5.4, cookies with equal path lengths
SHOULD be sorted by creation-time (earlier first). This adds a
creation-time record to the cookie struct in order to make cookie
sorting more deterministic. The creation-time is defined as the
order of the cookies in the jar, the first cookie read fro the
jar being the oldest. The creation-time is thus not serialized
into the jar. Also remove the strcmp() matching in the sorting as
there is no lexicographic ordering in RFC6265. Existing tests are
updated to match.
Closes#2524
As uintptr_t and HANDLE are always the same size, this warning is
harmless. Just silence it using an intermediate uintptr_t variable.
Closes https://github.com/curl/curl/pull/2908
1) Using CERT_STORE_OPEN_EXISTING_FLAG ( or CERT_STORE_READONLY_FLAG )
while opening certificate store would be sufficient in this scenario and
less-demanding in sense of required user credentials ( for example,
IIS_IUSRS will get "Access Denied" 0x05 error for existing CertOpenStore
call without any of flags mentioned above ),
2) as 'cert_store_name' is a DWORD, attempt to format its value like a
string ( in "Failed to open cert store" error message ) will throw null
pointer exception
3) adding GetLastError(), in my opinion, will make error message more
useful.
Bug: https://curl.haxx.se/mail/lib-2018-08/0198.htmlCloses#2909
Since GOPHER support was added in curl `?' character was automatically
translated to `%09' (`\t').
However, this behaviour does not seems documented in RFC 4266 and for
search selectors it is documented to directly use `%09' in the URL.
Apart that several gopher servers in the current gopherspace have CGI
support where `?' is used as part of the selector and translating it to
`%09' often leads to surprising results.
Closes#2910
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
Handles created with curl_easy_duphandle do not use the SSL engine set
up in the original handle. This fixes the issue by storing the engine
name in the internal url state and setting the engine from its name
inside curl_easy_duphandle.
Reported-by: Anton Gerasimov
Signed-of-by: Laurent Bonnans
Fixes#2829Closes#2833
If this is the last stream on this connection, the RST_STREAM might not
get pushed to the wire otherwise.
Fixes#2882Closes#2887
Researched-by: Michael Kaufmann
This change allows to use the CMake config files generated by Curl's
CMake scripts for static builds of the library.
The symbol CURL_STATIC lib must be defined to compile downstream,
thus the config package is the perfect place to do so.
Fixes#2817Closes#2823
Reported-by: adnn on github
Reviewed-by: Sergei Nikulov
The verbose message "Authentication using SSH public key file" was
printed each time the ssh_userauth_publickey_auto() was called, which
meant each time a packet was transferred over network because the API
operates in non-blocking mode.
This patch makes sure that the verbose message is printed just once
(when the authentication state is entered by the SSH state machine).
Deal with tiny "HTTP/0.9" (header-less) responses by checking the
status-line early, even before a full "HTTP/" is received to allow
detecting 0.9 properly.
Test 1266 and 1267 added to verify.
Fixes#2420Closes#2872
This allows the use of PKCS#11 URI for certificates and keys without
setting the corresponding type as "ENG" and the engine as "pkcs11"
explicitly. If a PKCS#11 URI is provided for certificate, key,
proxy_certificate or proxy_key, the corresponding type is set as "ENG"
if not provided and the engine is set to "pkcs11" if not provided.
Acked-by: Nikos Mavrogiannopoulos
Closes#2333
