ChangeLog:
Sun 26 Dec 2021 20:30:00 MSK
Releasing GNU libmicrohttpd 0.9.75 -EG
December 2021
Fixed Makefile warning on MinGW.
Fixed compiler warning on MinGW.
Fixed "configure" portability (for NetBSD).
MSVC project cosmetics.
MSVC fixed project to fix linker warning.
Fixed compiler warning on some platforms.
Further improved test_client_put_stop to get stable results on all
platforms.
Added workaround for platforms (like OpenBSD) where system monotonic clocks
may jump forward and back.
Added more checks in test_large_put, increased timeout (was too small for
this test). -EG
Sun 19 Dec 2021 18:30:00 MSK
Releasing GNU libmicrohttpd 0.9.74 -EG
December 2021
Fixed doxy for MHD_suspend_connection().
Some code improvements for new test test_client_put_stop.
Added special log message if thread creation failed due to system limits.
Fully restructured new_connection_process_() to correctly handle errors,
fixed missing decrement of number of daemon connections if any error
encountered, fixed app notification of connection termination when app has
not been notified about connection start, fixed (highly unlikely) reset of
the list of connections if reached daemon's connections limit.
configure: fixed some compiler warnings reported in config.log.
Fixed tests on FreeBSD to support system-limited rate of RST packets and
'blackhole' system setting. -EG
Fixed tests for libmagic to really use libmagic in examples. -CG
Used tricks in code formatting to workaround uncrustify bugs.
configure: improved compatibility with various shells.
configure: added selective enable of sanitizers.
Fixed compatibility with old GnuTLS versions.
Fixed tests compatibility with old libcurl versions.
Fixed busy-waiting in test_timeout (fixed CPU load spikes in the test).
test_https_time_out: check rewritten, previously it is was no-op.
test_upgrade{,_large}: fixed passing of socket value to GnuTLS on W32.
Simplified Makefile for HTTPS tests.
Added detection of old broken GnuTLS builds (on RHEL6 and clones) and
disabled some tests broken with these builds.
Muted compiler warnings with old libcurl versions.
Reworked dlltool support: added support for weakened oversimplified
half-broken llvm-dlltool
Silenced MS lib tool warning and MS lib tool invocation.
Added Makefiles rules for automatic regeneration of all required files if
anything is missing.
Added Makefile silent rules support for W32 RC and W32 static libs.
Added local patches for autotools (mainly for libtool) to build MHD
correctly on modern MinGW64/Clang.
Updated HTTP headers macros from registry. -EG
November 2021
Clarified comments and doxy for MHD_str* and related tests.
MHD_uint32_to_strx(): rewritten for readability and minor optimization,
used indexes instead of pointers.
Documented in doxy how to use MHD_AccessHandlerCallback.
mhd_sockets: added more network error codes.
W32 socket pair: set TCP_NODELAY to avoid unwanted buffering and delays.
Additional doxy fixes in microhttpd.h.
Fixed blocking sockets setting in tests and examples for W32.
Added checks for fcntl() results in tests and examples.
Added series of tests based on simple HTTP client implementation developed
for testing of MHD.
Renamed 'early_response' connection flag to 'discard_request' and reworked
handling of connection's flags.
Clarified request termination reasons doxy, fixed reporting of
MHD_REQUEST_TERMINATED_READ_ERROR (previously this code was not really used
in reporting).
Enforce all libcurl tests exit code to be zero or one.
Rewritten client upload processing: removed redundant checks, fixed
skipping of chunk closure when not data is not received yet, fixed skipping
of the last LF in termination chunk, handle correctly chunk sizes with more
than 16 digits (leading zeros are valid according to HTTP RFC), fixed
handling of CRCR, LFCR, LFLF, and bare CR as single line delimiters, report
error when invalid chunk format is received without waiting to receive
(possibly missing) end of the line, reply to the client with special error
if chunk size is too large to be handled by MHD (>16 EiB).
Added error reply if client used too large request payload (>16 EiB).
Fixed return value for MHD_FEATURE_AUTOSUPPRESS_SIGPIPE on W32, now it
returns MHD_YES as W32 does not need sigpipe suppression.
configure: reordered and improved headers detection. Some headers require
other headers to be included before, now configure supports it.
Added missing ifdef guard for <stdbool.h>.
mhd_sockets: reordered includes for better compatibility.
Some code readability and formatting improvements. -EG
October 2021
Added test family test_toolarge to check correct handling of the buffers
when the size of data is larger than free space.
Fixed missing updated of read and write buffers sizes.
Added detection and use of supported "noreturn" keyword for function
declaration. It should help compiler and static analyser.
Added support for leak sanitizer.
Fixed analyser errors on W32.
Partially reworked memory allocation from the pool, more robust
implementation, always track read and write buffers.
Added custom memory poisoning in memory pool with address sanitizer.
Added missing update of the read buffer size.
Addition for doxy for new behaviour of MHD_del_response_header().
Added two tests with non-standard symbols in requests.
Removed double close of connection with error in headers processing.
Respond to the client with error if chunked request has broken chunked
encoding as required by HTTP RFC instead of just closing the connection.
Fixed request headers processing. Do not recognize bare CR as end of line.
Fixed processing of CRCR, bare CR, LFCR, and LFLF as end of the line for
request chunked encoding. Now only CRLF or bare LF are recognized as end
of line.
Added Lawrence Sebald to the AUTHORS file (iovec-based responses).
Check for PAGESIZE and PAGE_SIZE macros and check whether they can be used
for static variable initialization.
Include "MHD_config.h" before all other includes to set macros required to
be set before standard includes.
Chunked response: abort with error if application returns more data than
requested.
Monotonic clock: use only native clock on W32 as all other clocks are just
wrappers.
W32: fixed builds with MSVC, added projects for VS2022, added MSVC
universal project that use latest available toolset, use C17 if supported.
Chunked response: fixed calculation of number of bytes left to send.
microhttpd.h: doxy clarifications for sockets polling.
Updated HTTP statuses, methods, and headers names from the registries.
Further improved doxy for MHD_add_response_header().
A few comments improvements and clarifications.
Added internal connection's flag indicating discard of the request. -EG
Websockets update by David Gausmann. -DG
Fixed reported value for MHD_CONNECTION_INFO_CONNECTION_TIMEOUT.
Minor code readability improvements in MHD_set_connection_option().
Improved doxy for MHD_get_timeout().
Memorypool: minor code improvements. -EG
September 2021
Improved system includes headers detection and usage. Removed unused
headers detection.
Added indirect calculation of maximum values at compile time by
using types size detection. These values are used only to mute
compiler warnings.
Fixed pre-compiler errors if various *_MAX macros defined with
non-digits symbols not readable for pre-compiler.
Limit number of used CPU cores in tests to 6, unless heavy tests are
enabled.
Disabled parallel tests with libcurl if heavy tests are enabled.
configure: removed '--enable-sanitizer' and added '--enable-sanitizers'
parameters. Added testing for supported sanitizers and enabling only
supported sanitizers.
Added support for run-time sanitizers settings for tests when
sanitizers are enabled.
Added support for undefined behavior sanitizer without run-time library.
Fixed various undefined behavior sanitizer detected errors, improved
portability.
Fixed how bitwise NOT is used with enum, fixed portability.
microhttpd.h: changed macros MHD_CONTENT_READER_* to use ssize_t.
test_postprocessor: added more check, improved error reporting, added
new test data.
postprocessor: fixed undefined behavior (memcpy(), memmove() with zero
size and NULL pointer).
Updated copyright year in W32 DLLs.
postprocessor: fixed empty key processing.
test_postprocessor: added tests with hex-encoded values.
postprocessor: fixed incomplete processing of the last part of hex-encoded
value if data was broken into certain sized pieces.
Used type specifiers for printf() from inttypes.h to improved compatibility
with various run-time libs. Fallback to standard values if type specifiers
are not defined.
Added detection of used run-time library (MSVCRT/UCRT) on W32.
testcurl: fixed incorrect case-insensitive match for method name. Method
name must be checked by using case-sensitive match.
microhttpd.h: clarified some doxy descriptions.
Prevented potential double sending of error responses.
Fixed application notification with MHD_REQUEST_TERMINATED_COMPLETED_OK
when error response has been sent (MHD_REQUEST_TERMINATED_WITH_ERROR is
used).
Avoid trying to send error response if response is already being sent.
Improved log error message when error response is processing. -EG
August 2021
Silently drop "keep-alive" token from response "connection" header,
"keep-alive" cannot be enforced and always enabled if possible.
Further improved doxy for MHD_add_response_header().
Added detection of the "Date:" header in the response headers set by
app at response forming time.
Disallow space in response header name, allow tab in response header
value.
Added internal MHD_uint8_to_str_pad() function.
Used internal MHD_uint8_to_str_pad() in datestamp generation function.
Added detection and reporting of incorrect "Upgrade" responses. -EG
Fixed short busy waiting (up to one second) when connection is going
to be closed. -AI
Minor improvement for test_callback, test_get_chunked
Fixed chunked responses with known size.
Added two more tests for chunked response.
Fixed chunked responses with predefined data (without data callback).
Fixed calculation of the buffer size for the next response chunk.
Completely rewritten reply header build function. The old version
had several levels of hacks, was unmaintainable, did not follow
HTTP specification in details; fixed used caseless header matching
where case-sensitive matching must be used; removed two passes of
header building. New version use clear logic and can be extended
when needed.
Changed behaviour: "Connection: keep-alive" is not being sent
for HTTP/1.1 connection (as per HTTP RFC).
test_get_chunked: fixed error reporting.
HTTPS tests: fixed memory leaks if function failed.
libcurl tests: improved handling of curl multi_*.
Added two tests for correct choice of "Keep-Alive" or "Close".
Simplified Makefile for testcurl.
Fixed select() error handling in tests.
microhttpd.h: minor macro formatting
Changed behaviour: if response size is unknown and chunked encoding is
allowed, chunked encoding is used even for non-keep-alive connection as
required by HTTP RFC.
Added two more tests for chunked replies.
Simplified keepalive_possible(); added new value for MHD_ConnKeepAlive,
added third state "Upgrade".
Changed behaviour: used HTTP/1.1 replies for HTTP/1.0 requests as
required by HTTP RFC. HTTP/1.0 reply still can be enforced by response
flag.
Added more doxy for MHD_ResponseFlags, added new names with the same
values as old names: MHD_RF_HTTP_1_0_COMPATIBLE_STRICT and
MHD_RF_HTTP_1_0_SERVER.
Added new value MHD_RF_SEND_KEEP_ALIVE_HEADER to enforce sending of
"Connection: keep-alive" even for HTTP/1.1 clients when keep-alive is
used.
test_get_close_keep_alive: added more combinations of parameters to
check.
Added separate flag for chunked response in connection instead of
reusing the same flag as for chunked request.
Added new connection's flag "stop_with_error".
Fixed empty first line processing: the request could be not processed
unless something else kicks next processing the same connection again.
Added new connection states: MHD_CONNECTION_REQ_LINE_RECEIVING,
MHD_CONNECTION_FULL_REQ_RECEIVED, MHD_CONNECTION_START_REPLY to
simplify states logic.
Changed write buffer allocation logic: as connection buffer size is
known and fixed, use initially use full buffer for writing and reduce
size of part used for writing if another allocation from the same
buffer needs to be done. Implemented helper function to automatically
reduce the size of read or write part to allocate buffer for other
needs.
Added define of NDEBUG if neither _DEBUG nor NDEBUG are defined.
As accepted sockets inherit non-blocking flag from listening socket
on all platform except Linux, track this state to use less number
of syscalls.
Fixed compiler and static analyser warnings.
Moved HTTPS tests helper file to the HTTPS tests directory.
Minor Makefiles cleanup.
Added support for new monotonic clock ids.
Added new internal monotonic clock function with milliseconds accuracy.
Fixed support of custom connection timeout in thread-per-connection mode.
Added more error checking to test_timeout.
microhttpd.h: removed duplicated macro.
Refined timeouts handling. Switched from seconds resolution to milliseconds
resolution, added automatic detection and support of low-resolution system
clock to avoid busy-waiting at connection expiration. Added log message
for too large timeout period (> 146 million years) with trim to supported
values. -EG
Wed 04 Aug 2021 06:56:52 PM CEST
Introduce new MHD_CONNECTION_INFO_HTTP_STATUS. -CG
July 2021
Added automatic response flags with detection when response
is being formed.
Added special processing for response "Connection" headers, combined
multiple "Connection" headers into single header.
Restructured MSVC project files.
Changed MSVC project defaults to Vista+ (WinXP is still supported).
Fixed copy-paste error in mhd_aligh.h, added support for MSVC.
Added internal function for printing hex and decimals numbers.
Reply chunked body handling fixes, used new internal functions
instead of snprintf().
Added automatic response flag when app sets chunked encoding header.
New internal function for chunked reply footer forming. Unification with
reply header forming function just over-complicated things and made
function hardly maintainable.
Added new function MHD_get_reason_phrase_len_for(), related tests and
updated scripts for response phrases.
Added more tests for chunked replies.
Added function to reset connection state after finishing processing of
request-reply to prepare for the next request.
Added even more tests for chunked replies.
Added internal function for printing uint64_t decimal numbers. -EG
June 2021
Tests: implemented checking of response footer.
Fixed loss of incoming data if more than half of buffer is
used for the next request data.
Fixed completely broken calculation of request header size.
Chunked response: do not ask app callback for more data then
it is possible to process (more than 16 MBytes).
Check and report if app used wrong response code (>999 or <100)
Refuse to add second "Transfer-Encoding" header.
HTTPS tests: check whether all libcurl function succeeded.
HTTPS tests: implemented new detection of TLS backend.
HTTPS tests: fixed tests with new TLS defaults (SSL forbidden).
Implemented detection of basic HTTP methods, fixed wrong
caseless matching for HTTP method names.
MHD_create_response_*() functions: improved doxy.
MHD_add_response_header: added detailed comment about automatic
headers.
Do not allow responses with 1xx codes for HTTP/1.0 requests.
Fixed used order of headers: now user response headers are used in
the same order as was added by application.
Added new internal function MHD_get_response_element_n_().
Added detection of more compiler built-ins for bits rotations.
Minor optimisation of caseless strings matching.
Added MHD_str_remove_token_caseless_() function and tests.
Added MHD_str_remove_tokens_caseless_() function and tests. -EG
May 2021
Doxy description clarifications for MHD_get_timeout() and related
functions.
Added MHD_create_response_from_buffer_with_free_callback_cls().
Added SHA-1 calculation (required for WebSockets).
Added new internal header mhd_aligh.h for checking alignment of
variables.
Fixed SHA-256 and MD5 calculation with unaligned data.
Added tests for hashes with unaligned data.
Used compiler built-ins for bits rotations.
Added detection of HTTP version at early stage.
Added early response of unsupported HTTP version.
Fixed wrong caseless matches for HTTP version strings.
Added calculation of error responses at compile time (avoided
repeated strlen() for known data). -EG
April 2021
New test for reply chunked encoding. -EG
Mon 26 Apr 2021 02:09:46 PM CEST
Importing experimental Websocket support by David Gausmann. -CG
ea960d0132