Support merging values nested within objects. For instance, merging:
{
"foo": 1,
"bar": {
"baz": 2
}
}
with
{
"bar": {
"baz": 3
}
}
results in
{
"foo": 1,
"bar": {
"baz": 3
}
}
instead of overwriting the value for the bar key.
As said in man doc:
"Each invocation of va_copy() must be matched by a corresponding
invocation of va_end() in the same function."
va_copy may alloc memory in some system, it's necessay to free it by
va_end.
Fixes: efe6c7b3f2 ("Add json_sprintf and json_vsprintf")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
* Test equality of different length strings.
* Add tab to json_pack whitespace test.
* Test json_sprintf with empty result and invalid UTF.
* Test json_get_alloc_funcs with NULL arguments.
* Test invalid arguments.
* Add test_chaos to test allocation failure code paths.
* Remove redundant json_is_string checks from json_string_equal and
json_string_copy. Both functions are static and can only be called
with a json string.
Fixes to issues found by test_chaos:
* Fix crash on OOM in pack_unpack.c:read_string().
* Unconditionally free string in string_create upon allocation failure.
Update load.c:parse_value() to reflect this. This resolves a leak on
allocation failure for pack_unpack.c:pack_string() and
value.c:json_sprintf().
Although not visible from CodeCoverage these changes significantly
increase branch coverage. Especially in src/value.c where we previously
covered 67.4% of branches and now cover 96.3% of branches.
Transform serial key comparison from substraction to real comparison.
Reset serial to zero in json_object_clear() to avoid it growing out of
bounds when reusing objects.
Closes GH-40.
Closes GH-41.
The keys which are stored temporarily to a hashtable to make sure that
all object keys are unpacked, were hashed with the object key hashing
function. It is meant to compute hashes for object_key_t values, and
it works incorrectly for plain strings.
Fixed by introducing suitable functions for hashing and comparing
strings for string-keyed hashtables.
Thanks to Basile Starynkevitch for the suggestion and initial patch.
Thanks to Jonathan Landis and Deron Meranda for showing how this can
be utilized for implementing secure memory operations.
* By default, json_unpack() now checks that all items of arrays and
objects are unpacked. This is useful for validation.
* Add format specifier '*' to suppress this check for individual
arrays and objects. '*' must appear as the last format specifier
before the closing ']' or '}'.
