Some APIs are not exported when built as shared lib on Win32 #488
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hawicz
added a commit
that referenced
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Sep 9, 2019
|
s/b fixed in commit eae040a. |
netbsd-srcmastr
pushed a commit
to NetBSD/pkgsrc
that referenced
this issue
May 19, 2020
0.14 (up to commit 9ed00a6, 2020/04/14)
=========================================
Deprecated and removed features:
--------------------------------
* bits.h has been removed
* lh_abort() has been removed
* lh_table_lookup() has been removed, use lh_table_lookup_ex() instead.
* Remove TRUE and FALSE defines, use 1 and 0 instead.
Build changes:
--------------
## Deprecated and removed features:
* bits.h has been removed
* lh_abort() has been removed
* lh_table_lookup() has been removed, use lh_table_lookup_ex() instead.
* Remove TRUE and FALSE defines, use 1 and 0 instead.
* autoconf support, including autogen.sh, has been removed. See details about cmake, below.
* With the addition of json_tokener_get_parse_end(), access to internal fields of json_tokener, as well as use of many other symbols and types in json_tokener.h, is deprecated now.
* The use of Android.configure.mk to build for Android no longer works, and it is unknown how (or if) the new cmake-based build machinery can be used.
* Reports of success, or pull requests to correct issues are welcome.
## Notable improvements and new features
### Builds and documentation
* Build machinery has been switched to CMake. See README.md for details about how to build.
* TL;DR: `mkdir build ; cd build ; cmake -DCMAKE_INSTALL_PREFIX=/some/path ../json-c ; make all test install`
* To ease the transition, there is a `cmake-configure` wrapper that emulates the old autoconf-based configure script.
* This has enabled improvements to the build on Windows system; also all public functions have been fixed to be properly exported. For best results, use Visual Studio 2015 or newer.
* The json-c style guide has been updated to specify the use of clang-format, and all code has been reformatted.
* Since many lines of code have trivial changes now, when using git blame, be sure to specify -w
* Numerous improvements have been made to the documentation including function effects on refcounts, when passing a NULL is safe, and so on.
### json_tokener changes
* Added a json_tokener_get_parse_end() function to replace direct access of tok->char_offset.
* The char_offset field, and the rest of the json_tokener structure remain exposed for now, but expect a future release to hide it like is done with json_object_private.h
* json_tokener_parse_ex() now accepts a new JSON_TOKENER_VALIDATE_UTF8 flag to validate that input is UTF8.
* If validation fails, json_tokener_get_error(tok) will return json_tokener_error_parse_utf8_string (see enum json_tokener_error).
### Other changes and additions
* Add support for unsigned 64-bit integers, uint64_t, to gain one extra bit of magnitude for positive ints.
* json_tokener will now parse values up to UINT64_MAX (18446744073709551615)
* Existing methods returning int32_t or int64_t will cap out-of-range values at INT32_MAX or INT64_MAX, preserving existing behavior.
* The implementation includes the possibility of easily extending this to larger sizes in the future.
* A total of 7 new functions were added:
* json_object_get_uint64 ( struct json_object const* jso )
* json_object_new_uint64 ( uint64_t i )
* json_object_set_uint64 ( struct json_object* jso, uint64_t new_value )
* json_parse_uint64 ( char const* buf, uint64_t* retval )
* See description of uint64 support, above.
* json_tokener_get_parse_end ( struct json_tokener* tok )
* See details under "json_tokener changes", above.
* json_object_from_fd_ex ( int fd, int in_depth )
* Allows the max nesting depth to be specified.
* json_object_new_null ( )
* Simply returns NULL. Its use is not recommended.
* The size of struct json_object has decreased from 96 bytes to 88 bytes.
### Testing
* Many updates were made to test cases, increasing code coverage.
* There is now a quick way (JSONC_TEST_TRACE=1) to turn on shell tracing in tests.
* To run tests, use `make test`; the old "check" target no longer exists.
## Significant bug fixes
For the full list of issues and pull requests since the previous release, please see issues_closed_for_0.14.md
* [Issue #389](json-c/json-c#389): Add an assert to explicitly crash when _ref_count is corrupted, instead of a later "double free" error.
* [Issue #407](json-c/json-c#407): fix incorrect casts in calls to ctype functions (isdigit and isspace) so we don't crash when asserts are enabled on certain platforms and characters > 128 are parsed.
* [Issue #418](json-c/json-c#418): Fix docs for json_util_from_fd and json_util_from_file to say that they return NULL on failures.
* [Issue #422](json-c/json-c#422): json_object.c:set errno in json_object_get_double() when called on a json_type_string object with bad content.
* [Issue #453](json-c/json-c#453): Fixed misalignment in JSON serialization when JSON_C_TO_STRING_SPACED and JSON_C_TO_STRING_PRETTY are used together.
* [Issue #463](json-c/json-c#463): fix newlocale() call to use LC_NUMERIC_MASK instead of LC_NUMERIC, and remove incorrect comment.
* [Issue #486](json-c/json-c#486): append a missing ".0" to negative double values to ensure they are serialized as floating point numbers.
* [Issue #488](json-c/json-c#488): use JSON_EXPORT on functions so they are properly exported on Windows.
* [Issue #539](json-c/json-c#539): use an internal-only serializer function in json_object_new_double_s() to avoid potential conflicts with user code that uses the json_object_userdata_to_json_string serializer.
mtremer
pushed a commit
to ipfire/ipfire-2.x
that referenced
this issue
Jan 5, 2023
- Update from version 0.13.1 to 0.16
- Update of rootfile
- json-c moved from building with autotools to building with cmake
This required cmake, curl and libarchive to be moved earlier in make.sh than json-c
- sobump occurs with this change. Identified 28 addons that are linked to json-c
using find-dependencies and added them as additional patches to this patch as a series
for shipping with the core update.
- Changelog
0.16 (up to commit 66dcdf5, 2022-04-13)
Deprecated and removed features:
* JSON_C_OBJECT_KEY_IS_CONSTANT is deprecated in favor of
JSON_C_OBJECT_ADD_CONSTANT_KEY
* Direct access to lh_table and lh_entry structure members is deprecated.
Use access functions instead, lh_table_head(), lh_entry_next(), etc...
* Drop REFCOUNT_DEBUG code.
New features
* The 0.16 release introduces no new features
Build changes
* Add a DISABLE_EXTRA_LIBS option to skip using libbsd
* Add a DISABLE_JSON_POINTER option to skip compiling in json_pointer support.
Significant changes and bug fixes
* Cap string length at INT_MAX to avoid various issues with very long strings.
* json_object_deep_copy: fix deep copy of strings containing '\0'
* Fix read past end of buffer in the "json_parse" command
* Avoid out of memory accesses in the locally provided vasprintf() function
(for those platforms that use it)
* Handle allocation failure in json_tokener_new_ex
* Fix use-after-free in json_tokener_new_ex() in the event of printbuf_new() returning NULL
* printbuf_memset(): set gaps to zero - areas within the print buffer which
have not been initialized by using printbuf_memset
* printbuf: return -1 on invalid arguments (len < 0 or total buffer > INT_MAX)
* sprintbuf(): propagate printbuf_memappend errors back to the caller
Optimizations
* Speed up parsing by replacing ctype functions with simplified, faster
non-locale-sensitive ones in json_tokener and json_object_to_json_string.
* Neither vertical tab nor formfeed are considered whitespace per the JSON spec
* json_object: speed up creation of objects, calloc() -> malloc() + set fields
* Avoid needless extra strlen() call in json_c_shallow_copy_default() and
json_object_equal() when the object is known to be a json_type_string.
Other changes
* Validate size arguments in arraylist functions.
* Use getrandom() if available; with GRND_NONBLOCK to allow use of json-c
very early during boot, such as part of cryptsetup.
* Use arc4random() if it's available.
* random_seed: on error, continue to next method instead of exiting the process
* Close file when unable to read from /dev/urandom in get_dev_random_seed()
0.15 (up to commit 870965e, 2020/07/26)
Deprecated and removed features:
* Deprecate `array_list_new()` in favor of `array_list_new2()`
* Remove the THIS_FUNCTION_IS_DEPRECATED define.
* Remove config.h.win32
New features
* Add a `JSON_TOKENER_ALLOW_TRAILING_CHARS` flag to allow multiple objects
to be parsed even when `JSON_TOKENER_STRICT` is set.
* Add `json_object_new_array_ext(int)` and `array_list_new_2(int)` to allow
arrays to be allocated with the exact size needed, when known.
* Add `json_object_array_shrink()` (and `array_list_shrink()`) and use it in
json_tokener to minimize the amount of memory used.
* Add a json_parse binary, for use in testing changes (not installed, but
available in the apps directory).
Build changes
* #639/#621 - Add symbol versions to all exported symbols
* #508/#634 - Always enable -fPIC to allow use of the json-c static library in
other libraries
* Build both static and shared libraries at the same time.
* #626 - Restore compatibility with cmake 2.8
* #471 - Always create directories with mode 0755, regardless of umask.
* #606/#604 - Improve support for OSes like AIX and IBM i, as well as for
MINGW32 and old versions of MSVC
* #451/#617 - Add a DISABLE_THREAD_LOCAL_STORAGE cmake option to disable
the use of thread-local storage.
Significant changes and bug fixes
* Split the internal json_object structure into several sub-types, one for
each json_type (json_object_object, json_object_string, etc...).
This improves memory usage and speed, with the benchmark under
bench/ report 5.8% faster test time and 6%(max RSS)-12%(peak heap)
less memory usage.
Memory used just for json_object structures decreased 27%, so use cases
with fewer arrays and/or strings would benefit more.
* Minimize memory usage in array handling in json_tokener by shrinking
arrays to the exact number of elements parsed. On bench/ benchmark:
9% faster test time, 39%(max RSS)-50%(peak heap) less memory usage.
Add json_object_array_shrink() and array_list_shrink() functions.
* #616 - Parsing of surrogate pairs in unicode escapes now properly handles
incremental parsing.
* Fix incremental parsing of numbers, especially those with exponents, e.g.
so parsing "[0", "e+", "-]" now properly returns an error.
Strict mode now rejects missing exponents ("0e").
* Successfully return number objects at the top level even when they are
followed by a "-", "." or "e". This makes parsing things like "123-45"
behave consistently with things like "123xyz".
Other changes
* #589 - Detect broken RDRAND during initialization; also, fix segfault
in the CPUID check.
* #592 - Fix integer overflows to prevert out of bounds write on large input.
* Protect against division by zero in linkhash, when created with zero size.
* #602 - Fix json_parse_uint64() internal error checking, leaving the retval
untouched in more failure cases.
* #614 - Prevent truncation when custom double formatters insert extra \0's
0.14 (up to commit 9ed00a6, 2020/04/14)
Deprecated and removed features:
* bits.h has been removed
* lh_abort() has been removed
* lh_table_lookup() has been removed, use lh_table_lookup_ex() instead.
* Remove TRUE and FALSE defines, use 1 and 0 instead.
Build changes:
Deprecated and removed features:
* bits.h has been removed
* lh_abort() has been removed
* lh_table_lookup() has been removed, use lh_table_lookup_ex() instead.
* Remove TRUE and FALSE defines, use 1 and 0 instead.
* autoconf support, including autogen.sh, has been removed. See details about cmake, below.
* With the addition of json_tokener_get_parse_end(), access to internal fields of json_tokener, as well as use of many other symbols and types in json_tokener.h, is deprecated now.
* The use of Android.configure.mk to build for Android no longer works, and it is unknown how (or if) the new cmake-based build machinery can be used.
* Reports of success, or pull requests to correct issues are welcome.
Notable improvements and new features
Builds and documentation
* Build machinery has been switched to CMake. See README.md for details about how to build.
* TL;DR: `mkdir build ; cd build ; cmake -DCMAKE_INSTALL_PREFIX=/some/path ../json-c ; make all test install`
* To ease the transition, there is a `cmake-configure` wrapper that emulates the old autoconf-based configure script.
* This has enabled improvements to the build on Windows system; also all public functions have been fixed to be properly exported. For best results, use Visual Studio 2015 or newer.
* The json-c style guide has been updated to specify the use of clang-format, and all code has been reformatted.
* Since many lines of code have trivial changes now, when using git blame, be sure to specify -w
* Numerous improvements have been made to the documentation including function effects on refcounts, when passing a NULL is safe, and so on.
json_tokener changes
* Added a json_tokener_get_parse_end() function to replace direct access of tok->char_offset.
* The char_offset field, and the rest of the json_tokener structure remain exposed for now, but expect a future release to hide it like is done with json_object_private.h
* json_tokener_parse_ex() now accepts a new JSON_TOKENER_VALIDATE_UTF8 flag to validate that input is UTF8.
* If validation fails, json_tokener_get_error(tok) will return json_tokener_error_parse_utf8_string (see enum json_tokener_error).
Other changes and additions
* Add support for unsigned 64-bit integers, uint64_t, to gain one extra bit of magnitude for positive ints.
* json_tokener will now parse values up to UINT64_MAX (18446744073709551615)
* Existing methods returning int32_t or int64_t will cap out-of-range values at INT32_MAX or INT64_MAX, preserving existing behavior.
* The implementation includes the possibility of easily extending this to larger sizes in the future.
* A total of 7 new functions were added:
* json_object_get_uint64 ( struct json_object const* jso )
* json_object_new_uint64 ( uint64_t i )
* json_object_set_uint64 ( struct json_object* jso, uint64_t new_value )
* json_parse_uint64 ( char const* buf, uint64_t* retval )
* See description of uint64 support, above.
* json_tokener_get_parse_end ( struct json_tokener* tok )
* See details under "json_tokener changes", above.
* json_object_from_fd_ex ( int fd, int in_depth )
* Allows the max nesting depth to be specified.
* json_object_new_null ( )
* Simply returns NULL. Its use is not recommended.
* The size of struct json_object has decreased from 96 bytes to 88 bytes.
Testing
* Many updates were made to test cases, increasing code coverage.
* There is now a quick way (JSONC_TEST_TRACE=1) to turn on shell tracing in tests.
* To run tests, use `make test`; the old "check" target no longer exists.
Significant bug fixes
For the full list of issues and pull requests since the previous release, please see issues_closed_for_0.14.md
* [Issue #389](json-c/json-c#389): Add an assert to explicitly crash when _ref_count is corrupted, instead of a later "double free" error.
* [Issue #407](json-c/json-c#407): fix incorrect casts in calls to ctype functions (isdigit and isspace) so we don't crash when asserts are enabled on certain platforms and characters > 128 are parsed.
* [Issue #418](json-c/json-c#418): Fix docs for json_util_from_fd and json_util_from_file to say that they return NULL on failures.
* [Issue #422](json-c/json-c#422): json_object.c:set errno in json_object_get_double() when called on a json_type_string object with bad content.
* [Issue #453](json-c/json-c#453): Fixed misalignment in JSON serialization when JSON_C_TO_STRING_SPACED and JSON_C_TO_STRING_PRETTY are used together.
* [Issue #463](json-c/json-c#463): fix newlocale() call to use LC_NUMERIC_MASK instead of LC_NUMERIC, and remove incorrect comment.
* [Issue #486](json-c/json-c#486): append a missing ".0" to negative double values to ensure they are serialized as floating point numbers.
* [Issue #488](json-c/json-c#488): use JSON_EXPORT on functions so they are properly exported on Windows.
* [Issue #539](json-c/json-c#539): use an internal-only serializer function in json_object_new_double_s() to avoid potential conflicts with user code that uses the json_object_userdata_to_json_string serializer.
Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Reviewed-by: Peter Müller <peter.mueller@ipfire.org>
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Hi! I am trying to add
json-ctovcpkgthese days: #485 . And I encountered several link errors when I tried to link with a shared build ofjson-c:Test project: https://github.com/myd7349/Ongoing-Study/tree/master/cpp/CMake/vcpkg/json_c_test
It seems caused by the lack of
JSON_EXPORTin the declarations of these APIs:json-c/json_c_version.h
Line 27 in 485f2a0
json-c/json_util.h
Line 43 in 485f2a0
The correct way:
json-c/json_object.h
Line 190 in 485f2a0
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