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2019-02-26strerror: make the strerror function use local buffersDaniel Stenberg
Instead of using a fixed 256 byte buffer in the connectdata struct. In my build, this reduces the size of the connectdata struct by 11.8%, from 2160 to 1904 bytes with no functionality or performance loss. This also fixes a bug in schannel's Curl_verify_certificate where it called Curl_sspi_strerror when it should have called Curl_strerror for string from GetLastError. the only effect would have been no text or the wrong text being shown for the error. Co-authored-by: Jay Satiro Closes #3612
2019-02-26cookies: fix NULL dereference if flushing cookies with no CookieInfo setMichael Wallner
Regression brought by a52e46f3900fb0 (shipped in 7.63.0) Closes #3613
2019-02-25OpenSSL: add support for TLS ASYNC stateBernd Mueller
Closes #3591
2019-02-25schannel: support CALG_ECDH_EPHEM algorithmgeorgeok
Add support for Ephemeral elliptic curve Diffie-Hellman key exchange algorithm option when selecting ciphers. This became available on the Win10 SDK. Closes https://github.com/curl/curl/pull/3608
2019-02-24multi: call multi_done on connect timeoutsDaniel Stenberg
Failing to do so would make the CURLINFO_TOTAL_TIME timeout to not get updated correctly and could end up getting reported to the application completely wrong (way too small). Reported-by: accountantM on github Fixes #3602 Closes #3605
2019-02-23wolfssl: stop custom-adding curvesDaniel Stenberg
since wolfSSL PR https://github.com/wolfSSL/wolfssl/pull/717 (shipped in wolfSSL 3.10.2 and later) it sends these curves by default already. Pointed-out-by: David Garske Closes #3599
2019-02-22configure: remove the unused fdopen macroDaniel Stenberg
and the two remaining #ifdefs for it Closes #3600
2019-02-22url: change conn shutdown order to unlink data as last stepJay Satiro
- Split off connection shutdown procedure from Curl_disconnect into new function conn_shutdown. - Change the shutdown procedure to close the sockets before disassociating the transfer. Prior to this change the sockets were closed after disassociating the transfer so SOCKETFUNCTION wasn't called since the transfer was already disassociated. That likely came about from recent work started in Jan 2019 (#3442) to separate transfers from connections. Bug: https://curl.haxx.se/mail/lib-2019-02/0101.html Reported-by: Pavel Löbl Closes https://github.com/curl/curl/issues/3597 Closes https://github.com/curl/curl/pull/3598
2019-02-22Fix strict-prototypes GCC warningMarcel Raad
As seen in the MinGW autobuilds. Caused by commit f26bc29cfec0be84c67cf74065cf8e5e78fd68b7.
2019-02-20http2: verify :athority in push promise requestsDaniel Stenberg
RFC 7540 says we should verify that the push is for an "authoritative" server. We make sure of this by only allowing push with an :athority header that matches the host that was asked for in the URL. Fixes #3577 Reported-by: Nicolas Grekas Bug: https://curl.haxx.se/mail/lib-2019-02/0057.html Closes #3581
2019-02-20singlesocket: fix the 'sincebefore' placementDaniel Stenberg
The variable wasn't properly reset within the loop and thus could remain set for sockets that hadn't been set before and miss notifying the app. This is a follow-up to 4c35574 (shipped in curl 7.64.0) Reported-by: buzo-ffm on github Detected-by: Jan Alexander Steffens Fixes #3585 Closes #3589
2019-02-19connection: never reuse CONNECT_ONLY conectionsDaniel Stenberg
and make CONNECT_ONLY conections never reuse any existing ones either. Reported-by: Pavel Löbl Bug: https://curl.haxx.se/mail/lib-2019-02/0064.html Closes #3586
2019-02-19x509asn1: cleanup and unify code layoutDaniel Stenberg
- rename 'n' to buflen in functions, and use size_t for them. Don't pass in negative buffer lengths. - move most function comments to above the function starts like we use to - remove several unnecessary typecasts (especially of NULL) Reviewed-by: Patrick Monnerat Closes #3582
2019-02-19http: make adding a blank header thread-safeDaniel Stenberg
Previously the function would edit the provided header in-place when a semicolon is used to signify an empty header. This made it impossible to use the same set of custom headers in multiple threads simultaneously. This approach now makes a local copy when it needs to edit the string. Reported-by: d912e3 on github Fixes #3578 Closes #3579
2019-02-18rand: Fix a mismatch between comments in source and header.Frank Gevaerts
Reported-by: Björn Stenberg <bjorn@haxx.se> Closes #3584
2019-02-18x509asn1: replace single char with an arrayPatrick Monnerat
Although safe in this context, using a single char as an array may cause invalid accesses to adjacent memory locations. Detected by Coverity.
2019-02-18easy: fix win32 init to work without CURL_GLOBAL_WIN32Jay Satiro
- Change the behavior of win32_init so that the required initialization procedures are not affected by CURL_GLOBAL_WIN32 flag. libcurl via curl_global_init supports initializing for win32 with an optional flag CURL_GLOBAL_WIN32, which if omitted was meant to stop Winsock initialization. It did so internally by skipping win32_init() when that flag was set. Since then win32_init() has been expanded to include required initialization routines that are separate from Winsock and therefore must be called in all cases. This commit fixes it so that CURL_GLOBAL_WIN32 only controls the optional win32 initialization (which is Winsock initialization, according to our doc). The only users affected by this change are those that don't pass CURL_GLOBAL_WIN32 to curl_global_init. For them this commit removes the risk of a potential crash. Ref: https://github.com/curl/curl/pull/3573 Fixes https://github.com/curl/curl/issues/3313 Closes https://github.com/curl/curl/pull/3575
2019-02-17cookie: Add support for cookie prefixesDaniel Gustafsson
The draft-ietf-httpbis-rfc6265bis-02 draft, specify a set of prefixes and how they should affect cookie initialization, which has been adopted by the major browsers. This adds support for the two prefixes defined, __Host- and __Secure, and updates the testcase with the supplied examples from the draft. Closes #3554 Reviewed-by: Daniel Stenberg <daniel@haxx.se>
2019-02-16mbedtls: release sessionid resources on errorDaniel Gustafsson
If mbedtls_ssl_get_session() fails, it may still have allocated memory that needs to be freed to avoid leaking. Call the library API function to release session resources on this errorpath as well as on Curl_ssl_addsessionid() errors. Closes: #3574 Reported-by: Michał Antoniak <M.Antoniak@posnet.com> Reviewed-by: Daniel Stenberg <daniel@haxx.se>
2019-02-16version.c: silent scan-build even when librtmp is not enabledPatrick Monnerat
2019-02-15Curl_now: figure out windows version in win32_initDaniel Stenberg
... and avoid use of static variables that aren't thread safe. Fixes regression from e9ababd4f5a (present in the 7.64.0 release) Reported-by: Paul Groke Fixes #3572 Closes #3573
2019-02-14strip_trailing_dot: make sure NULL is never used for strlenDaniel Stenberg
scan-build warning: Null pointer passed as an argument to a 'nonnull' parameter
2019-02-14connection_check: restore original conn->data after the checkJay Satiro
- Save the original conn->data before it's changed to the specified data transfer for the connection check and then restore it afterwards. This is a follow-up to 38d8e1b 2019-02-11. History: It was discovered a month ago that before checking whether to extract a dead connection that that connection should be associated with a "live" transfer for the check (ie original conn->data ignored and set to the passed in data). A fix was landed in 54b201b which did that and also cleared conn->data after the check. The original conn->data was not restored, so presumably it was thought that a valid conn->data was no longer needed. Several days later it was discovered that a valid conn->data was needed after the check and follow-up fix was landed in bbae24c which partially reverted the original fix and attempted to limit the scope of when conn->data was changed to only when pruning dead connections. In that case conn->data was not cleared and the original conn->data not restored. A month later it was discovered that the original fix was somewhat correct; a "live" transfer is needed for the check in all cases because original conn->data could be null which could cause a bad deref at arbitrary points in the check. A fix was landed in 38d8e1b which expanded the scope to all cases. conn->data was not cleared and the original conn->data not restored. A day later it was discovered that not restoring the original conn->data may lead to busy loops in applications that use the event interface, and given this observation it's a pretty safe assumption that there is some code path that still needs the original conn->data. This commit is the follow-up fix for that, it restores the original conn->data after the connection check. Assisted-by: tholin@users.noreply.github.com Reported-by: tholin@users.noreply.github.com Fixes https://github.com/curl/curl/issues/3542 Closes #3559
2019-02-14memdebug: bring back curl_mark_scloseDaniel Stenberg
Used by debug builds with NSS. Reverted from 05b100aee247bb
2019-02-14transfer.c: do not compute length of undefined hex buffer.Patrick Monnerat
On non-ascii platforms, the chunked hex header was measured for char code conversion length, even for chunked trailers that do not have an hex header. In addition, the efective length is already known: use it. Since the hex length can be zero, only convert if needed. Reported by valgrind.
2019-02-14x509asn1: "Dereference of null pointer"Patrick Monnerat
Detected by scan-build (false positive).
2019-02-14gssapi: fix deprecated header warningsDaniel Stenberg
Heimdal includes on FreeBSD spewed out lots of them. Less so now. Closes #3566
2019-02-13multi: Dereference of null pointerDaniel Stenberg
Mostly a false positive, but this makes the code easier to read anyway. Detected by scan-build. Closes #3563
2019-02-12schannel: restore some debug output but only for debug buildsJay Satiro
Follow-up to 84c10dc from earlier today which wrapped a lot of the noisy debug output in DEBUGF but omitted a few lines. Ref: https://github.com/curl/curl/commit/84c10dc#r32292900
2019-02-12mime: put the boundary buffer into the curl_mime structDaniel Stenberg
... instead of allocating it separately and point to it. It is fixed-size and always used for each part. Closes #3561
2019-02-12schannel: be quietDaniel Stenberg
Convert numerous infof() calls into debug-build only messages since they are annoyingly verbose for regular applications. Removed a few. Bug: https://curl.haxx.se/mail/lib-2019-02/0027.html Reported-by: Volker Schmid Closes #3552
2019-02-12Curl_resolv: fix a gcc -Werror=maybe-uninitialized warningRomain Geissler
Closes #3562
2019-02-12http2: multi_connchanged() moved from multi.c, only used for h2Daniel Stenberg
Closes #3557
2019-02-12pretransfer: don't strlen() POSTFIELDS set for GET requestsDaniel Stenberg
... since that data won't be used in the request anyway. Fixes #3548 Reported-by: Renaud Allard Close #3549
2019-02-12multi: remove verbose "Expire in" ... messagesDaniel Stenberg
Reported-by: James Brown Bug: https://curl.haxx.se/mail/archive-2019-02/0013.html Closes #3558
2019-02-12mbedtls: make it build even if MBEDTLS_VERSION_C isn't setDaniel Stenberg
Reported-by: MAntoniak on github Fixes #3553 Closes #3556
2019-02-12non-ascii.c: fix typos in commentsDaniel Gustafsson
Fix two occurrences of s/convers/converts/ spotted while reading code.
2019-02-12fnmatch: disable if FTP is disabledDaniel Stenberg
Closes #3551
2019-02-12curl_path: only enabled for SSH buildsDaniel Stenberg
2019-02-11dns: release sharelock as soon as possibleDaniel Gustafsson
There is no benefit to holding the data sharelock when freeing the addrinfo in case it fails, so ensure releaseing it as soon as we can rather than holding on to it. This also aligns the code with other consumers of sharelocks. Closes #3516 Reviewed-by: Daniel Stenberg <daniel@haxx.se>
2019-02-11multi: (void)-prefix when ignoring return valuesDaniel Stenberg
... and added braces to two function calls which fixes warnings if they are replace by empty macros at build-time.
2019-02-11connection_check: set ->data to the transfer doing the checkDaniel Stenberg
The http2 code for connection checking needs a transfer to use. Make sure a working one is set before handler->connection_check() is called. Reported-by: jnbr on github Fixes #3541 Closes #3547
2019-02-11hostip: make create_hostcache_id avoid alloc + freeDaniel Stenberg
Closes #3544
2019-02-10cleanup: make local functions staticDaniel Stenberg
urlapi: turn three local-only functions into statics conncache: make conncache_find_first_connection static multi: make detach_connnection static connect: make getaddressinfo static curl_ntlm_core: make hmac_md5 static http2: make two functions static http: make http_setup_conn static connect: make tcpnodelay static tests: make UNITTEST a thing to mark functions with, so they can be static for normal builds and non-static for unit test builds ... and mark Curl_shuffle_addr accordingly. url: make up_free static setopt: make vsetopt static curl_endian: make write32_le static rtsp: make rtsp_connisdead static warnless: remove unused functions memdebug: remove one unused function, made another static
2019-02-09url/idnconvert: remove scan for <= 32 ascii valuesDaniel Stenberg
The check was added back in fa939220df before the URL parser would catch these problems and therefore these will never trigger now. Closes #3539
2019-02-09urlapi: reduce variable scope, remove unreachable 'break'Daniel Stenberg
Both nits pointed out by codacy.com Closes #3540
2019-02-06url: close TLS before removing conn from cacheChris Araman
- Fix potential crashes in schannel shutdown. Ensure any TLS shutdown messages are sent before removing the association between the connection and the easy handle. Reverts @bagder's previous partial fix for #3412. Fixes https://github.com/curl/curl/issues/3412 Fixes https://github.com/curl/curl/issues/3505 Closes https://github.com/curl/curl/pull/3531
2019-02-04smtp: avoid risk of buffer overflow in strtolDaniel Gustafsson
If the incoming len 5, but the buffer does not have a termination after 5 bytes, the strtol() call may keep reading through the line buffer until is exceeds its boundary. Fix by ensuring that we are using a bounded read with a temporary buffer on the stack. Bug: https://curl.haxx.se/docs/CVE-2019-3823.html Reported-by: Brian Carpenter (Geeknik Labs) CVE-2019-3823
2019-02-04ntlm: fix *_type3_message size check to avoid buffer overflowDaniel Stenberg
Bug: https://curl.haxx.se/docs/CVE-2019-3822.html Reported-by: Wenxiang Qian CVE-2019-3822
2019-02-04NTLM: fix size check condition for type2 received dataDaniel Stenberg
Bug: https://curl.haxx.se/docs/CVE-2018-16890.html Reported-by: Wenxiang Qian CVE-2018-16890