-
Notifications
You must be signed in to change notification settings - Fork 32
/
ChangeLog
365 lines (331 loc) · 16.9 KB
/
ChangeLog
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
1.2???.0
- TBD
1.2304.0, 2023-04-18
- change of release number scheme, now like rsyslog
- fix Fix CVE-2020-12762
Note: the CVE did not affect rsyslog use due to size limits
Thanks to Wang Haitao for the patch.
0.99.9 2021-01-26
- add API fjson_object_get_uint()
Thanks to Janmejay Singh for contributing the patch.
- add API fjson_object_array_del_idx()
Thanks to Noriko Hosoi for contributing the patch.
- bugfix for dangling pointer that causes segfault
The other functions assume that the memory is either set to NULL or a valid
json object. The array_list_del_idx function only moves the elements, but
does not set the pointer to null, which causes the same pointer to remain
in the list (outside of arr->length). Then, when array_list_put_idx is
called, the array_list_expand_internal leaps out, meaning that it has not
set the indices outside of the requested length to 0. array_list_put_idx
finds the pointer, tries to free it and a double free will be incurred,
because the actual element is still in the list.
Thanks to Michael van der Werve for contributing the patch.
0.99.8 2017-12-18
- make build under gcc7 with strict settings (warning==error)
- bugfix: constant key names not properly handled
if fjson_object_object_add_ex() is used with option
FJSON_OBJECT_KEY_IS_CONSTANT, fjson_object_object_del() will still
try to delete the key name. Depending on use, this can lead to
double-free, use-after-free or no problem.
see also https://github.com/rsyslog/rsyslog/issues/1839
closes https://github.com/rsyslog/libfastjson/issues/148
- fix potentially invalid return value of fjson_object_iter_begin
this could lead to callers doing improper opreations and thus
could lead to a segfault in callers
detected by Coverity scan, CID 198891
- fix small potential memory leak in json_tokener (unlinkely to occur)
detected by Coverity Scan, CID 198890
0.99.7 2017-10-17
- added option for case-insensitive comparisons
This permits to search for json keys in a case-sensitive way.
The default is "off", as this is against the JSON spec. However,
rsyslog needs this capability to increase usability inside the
variable system.
We add a new API call to switch between case-sensitive and
case-insensitive comparison, with case-sensitive being the default.
closes https://github.com/rsyslog/libfastjson/issues/142
- Removed userdata and custom-serialization functions
Reasoning (from pull request):
The library uses the concept of "userdata" and "custom serialization
functions" that can be set from user space. However, to effectively
make use of this feature, a user must have a deep understanding of
the internal data representation of the library, which makes this
feature not very useful.
But what is worse: internally, the library itself also sometimes
assigns data to this userdata member (especially when working with
doubles), and it also sometimes assigns alternative serialization
functions. This makes the feature even more unusable, because as a
user you never can know when the userdata pointer is save to use
for your own settings, and when you must leave it alone because
it is used by the library.
Long story short. In this pull request I got rid of the userdata
pointer completely. The case where the library was using the
"userdata" (for storing the original string representation of a
parsed double) has been moved into the union that is already used
for storing values.
see also: https://github.com/rsyslog/libfastjson/pull/141
Thanks to Emiel Bruijntjes for the patch.
0.99.6 2017-06-19
- fix a build issue under Solaris
0.99.5 2017-05-03
- fix tautology comparison in tautology in `fjson_object_iter_equal`
- made build under Solaris again
- made to build under AIX
Thanks to github user purnimam1 for the patch
- fix floating point representation when fractional part is missing
see also https://github.com/rsyslog/libfastjson/issues/126
Thanks to Jan Gerhards for the patch.
- m4: fix detection of atomics
In cross-compilation, it is impossible to run code at configure time to
detect the target specifics.
As such, AC_TRY_RUN fails miserably to detect reliably that atomic
intrisics are present in a toolchain, and decides they are not just
because this is cross-compilation.
Instead of AC_TRY_RUN, use AC_LINK_IFELSE that does not need to actually
run code, since all we're interested in is whether the intrisics are
present (or not). Fix both the 32- and 64-bit variants, even if the
latter is not used currently.
Fixes build failures detected by the Buildroot autobuilders, like:
http://autobuild.buildroot.org/results/23a/23ac0e742ed3a70ae4d038f8c9eadc23e708f671/build-end.log
http://autobuild.buildroot.org/results/192/1923d0b570adba494f83747a9610ea6ec35f5223/build-end.log
and many other cases, espcially on architectures where such intrsics are
present, but where the toolchain does not have threads (and anyway, it
is much more efficient to use the intrisics rather than use mutexes).
Thanks to Yann E. MORIN for the patch.
- add fjson_object_dump() and fjson_object_write() functions
... that make it possible to dump the json tree without having to
dynamically allocate a string, and to write the tree to a FILE*.
NOTE: right now, most of the code is simply copied from the functions
that use the "printbuf" for writing the data. I have not touched the old
printbuf-implementation, because some other code may still rely on it.
However, in my opinion these printbuf-based functions (if it is desirable
to keep them in the first place) can now be re-implemented to use the more
flexible fjson_object_dump() function.
MAINTAINER NOTE: we need to performance-test any new implementation and will
do so. The results will ultimately decide which parts of the code remain in
the codebase.
Thanks to Emiel Bruijntjes for the patch.
0.99.4 2016-08-03
- fix tautology comparison in tautology in `fjson_object_iter_equal`
Thanks to Andres Stieger for the patch
- improve build system to handle slightly older autoconf versions
- fix build problems with gcc6
Thanks to Andres Stieger for the patch
0.99.3 2016-07-11
- new dependency: autoconf-archive
- exit() is no longer called in unexpected situations
The previous code called exit on some occasions and did not
give the caller a chance to do any cleanup or handling on
it's own. This has completely been removed. Note that it was
very unlikely that this problem affected a caller, as exit()
was only called under very rare circumstances (e.g. OOM).
- fjson_version now returns configure VERSION
This avoid inconsistency.
- removal of Windows and Android bits
Thanks to Michael Biebl for the patch.
- fixes of the build system
Thanks to Michael Biebl for the patch.
- dropped support for Windows and Android as we do not target
these platforms
- "make distcheck" now works
- fix invalid Unicode representation for some non US-ASCII
characters when printed as string. Note that this could
potentially also lead to a segfault
0.99.2 2016-03-07
- new API: json_object_get_member_count()
- make comaptible with autoconf < 2.64
0.99.1
was never released, but version number has accidently been used by
some Adiscon packages. In order to prevent confusion, we have
decided not to use this version number for any official version.
0.99.0 2015-12-22
- bugfix: reference counting was not thread-safe
NEXT.VERSION
...nothing yet...
0.12
* Address security issues:
* CVE-2013-6371: hash collision denial of service
* CVE-2013-6370: buffer overflow if size_t is larger than int
* Avoid potential overflow in json_object_get_double
* Eliminate the mc_abort() function and MC_ABORT macro.
* Make the json_tokener_errors array local. It has been deprecated for
a while, and json_tokener_error_desc() should be used instead.
* change the floating point output format to %.17g so values with
more than 6 digits show up in the output.
* Remove the old libjson.so name compatibility support. The library is
only created as libjson-c.so now and headers are only installed
into the ${prefix}/json-c directory.
* When supported by the linker, add the -Bsymbolic-functions flag.
* Various changes to fix the build on MSVC.
* Make strict mode more strict:
* number must not start with 0
* no single-quote strings
* no comments
* trailing char not allowed
* only allow lowercase literals
* Added a json_object_new_double_s() convenience function to allow
an exact string representation of a double to be specified when
creating the object and use it in json_tokener_parse_ex() so
a re-serialized object more exactly matches the input.
* Add support NaN and Infinity
0.11
* IMPORTANT: the name of the library has changed to libjson-c.so and
the header files are now in include/json-c.
The pkgconfig name has also changed from json to json-c.
You should change your build to use appropriate -I and -l options.
A compatibility shim is in place so builds using the old name will
continue to work, but that will be removed in the next release.
* Maximum recursion depth is now a runtime option.
json_tokener_new() is provided for compatibility.
json_tokener_new_ex(depth)
* Include json_object_iterator.h in the installed headers.
* Add support for building on Android.
* Rewrite json_object_object_add to replace just the value if the key already exists so keys remain valid.
* Make it safe to delete keys while iterating with the json_object_object_foreach macro.
* Add a json_set_serializer() function to allow the string output of a json_object to be customized.
* Make float parsing locale independent.
* Add a json_tokener_set_flags() function and a JSON_TOKENER_STRICT flag.
* Enable -Werror when building.
* speed improvements to parsing 64-bit integers on systems with working sscanf
* Add a json_object_object_length function.
* Fix a bug (buffer overrun) when expanding arrays to more than 64 entries.
0.10
* Add a json_object_to_json_string_ext() function to allow output to be
formatted in a more human readable form.
* Add json_object_object_get_ex(), a NULL-safe get object method, to be able
to distinguish between a key not present and the value being NULL.
* Add an alternative iterator implementation, see json_object_iterator.h
* Make json_object_iter public to enable external use of the
json_object_object_foreachC macro.
* Add a printbuf_memset() function to provide an effecient way to set and
append things like whitespace indentation.
* Adjust json_object_is_type and json_object_get_type so they return
json_type_null for NULL objects and handle NULL passed to
json_objct_object_get().
* Rename boolean type to json_bool.
* Fix various compile issues for Visual Studio and MinGW.
* Allow json_tokener_parse_ex() to be re-used to parse multiple object.
Also, fix some parsing issues with capitalized hexadecimal numbers and
number in E notation.
* Add json_tokener_get_error() and json_tokener_error_desc() to better
encapsulate the process of retrieving errors while parsing.
* Various improvements to the documentation of many functions.
* Add new json_object_array_sort() function.
* Fix a bug in json_object_get_int(), which would incorrectly return 0
when called on a string type object.
Eric Haszlakiewicz
* Add a json_type_to_name() function.
Eric Haszlakiewicz
* Add a json_tokener_parse_verbose() function.
Jehiah Czebotar
* Improve support for null bytes within JSON strings.
Jehiah Czebotar
* Fix file descriptor leak if memory allocation fails in json_util
Zachary Blair, zack_blair at hotmail dot com
* Add int64 support. Two new functions json_object_net_int64 and
json_object_get_int64. Binary compatibility preserved.
Eric Haszlakiewicz, EHASZLA at transunion com
Rui Miguel Silva Seabra, rms at 1407 dot org
* Fix subtle bug in linkhash where lookup could hang after all slots
were filled then successively freed.
Spotted by Jean-Marc Naud, j dash m at newtraxtech dot com
* Make json_object_from_file take const char *filename
Spotted by Vikram Raj V, vsagar at attinteractive dot com
* Add handling of surrogate pairs (json_tokener.c, test4.c, Makefile.am)
Brent Miller, bdmiller at yahoo dash inc dot com
* Correction to comment describing printbuf_memappend in printbuf.h
Brent Miller, bdmiller at yahoo dash inc dot com
0.9
* Add README.html README-WIN32.html config.h.win32 to Makefile.am
Michael Clark, <[email protected]>
* Add const qualifier to the json_tokener_parse functions
Eric Haszlakiewicz, EHASZLA at transunion dot com
* Rename min and max so we can never clash with C or C++ std library
Ian Atha, thatha at yahoo dash inc dot com
* Fix any noticeable spelling or grammar errors.
* Make sure every va_start has a va_end.
* Check all pointers for validity.
Erik Hovland, erik at hovland dot org
* Fix json_object_get_boolean to return false for empty string
Spotted by Vitaly Kruglikov, Vitaly dot Kruglikov at palm dot com
* optimizations to json_tokener_parse_ex(), printbuf_memappend()
Brent Miller, bdmiller at yahoo dash inc dot com
* Disable REFCOUNT_DEBUG by default in json_object.c
* Don't use this as a variable, so we can compile with a C++ compiler
* Add casts from void* to type of assignment when using malloc
* Add #ifdef __cplusplus guards to all of the headers
* Add typedefs for json_object, json_tokener, array_list, printbuf, lh_table
Michael Clark, <[email protected]>
* Null pointer dereference fix. Fix json_object_get_boolean strlen test
to not return TRUE for zero length string. Remove redundant includes.
Erik Hovland, erik at hovland dot org
* Fixed warning reported by adding -Wstrict-prototypes
-Wold-style-definition to the compilatin flags.
Dotan Barak, dotanba at gmail dot com
* Add const correctness to public interfaces
Gerard Krol, g dot c dot krol at student dot tudelft dot nl
0.8
* Add va_end for every va_start
Dotan Barak, dotanba at gmail dot com
* Add macros to enable compiling out debug code
Geoffrey Young, geoff at modperlcookbook dot org
* Fix bug with use of capital E in numbers with exponents
Mateusz Loskot, mateusz at loskot dot net
* Add stddef.h include
* Patch allows for json-c compile with -Werror and not fail due to
-Wmissing-prototypes -Wstrict-prototypes -Wmissing-declarations
Geoffrey Young, geoff at modperlcookbook dot org
0.7
* Add escaping of backslash to json output
* Add escaping of foward slash on tokenizing and output
* Changes to internal tokenizer from using recursion to
using a depth state structure to allow incremental parsing
0.6
* Fix bug in escaping of control characters
Johan Björklund, johbjo09 at kth dot se
* Remove include "config.h" from headers (should only
be included from .c files)
Michael Clark <[email protected]>
0.5
* Make headers C++ compatible by change *this to *obj
* Add ifdef C++ extern "C" to headers
* Use simpler definition of min and max in bits.h
Larry Lansing, llansing at fuzzynerd dot com
* Remove automake 1.6 requirement
* Move autogen commands into autogen.sh. Update README
* Remove error pointer special case for Windows
* Change license from LGPL to MIT
Michael Clark <[email protected]>
0.4
* Fix additional error case in object parsing
* Add back sign reversal in nested object parse as error pointer
value is negative, while error value is positive.
Michael Clark <[email protected]>
0.3
* fix pointer arithmetic bug for error pointer check in is_error() macro
* fix type passed to printbuf_memappend in json_tokener
* update autotools bootstrap instructions in README
Michael Clark <[email protected]>
0.2
* printbuf.c - C. Watford ([email protected])
Added a Win32/Win64 compliant implementation of vasprintf
* debug.c - C. Watford ([email protected])
Removed usage of vsyslog on Win32/Win64 systems, needs to be handled
by a configure script
* json_object.c - C. Watford ([email protected])
Added scope operator to wrap usage of json_object_object_foreach, this
needs to be rethought to be more ANSI C friendly
* json_object.h - C. Watford ([email protected])
Added Microsoft C friendly version of json_object_object_foreach
* json_tokener.c - C. Watford ([email protected])
Added a Win32/Win64 compliant implementation of strndup
* json_util.c - C. Watford ([email protected])
Added cast and mask to suffice size_t v. unsigned int conversion
correctness
* json_tokener.c - sign reversal issue on error info for nested object parse
spotted by Johan Björklund (johbjo09 at kth.se)
* json_object.c - escape " in json_escape_str
* Change to automake and libtool to build shared and static library
Michael Clark <[email protected]>
0.1
* initial release