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Implement json_dumpb()

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This function encodes the json_t object to a pre-allocated buffer.
It compliments the already existing json_loadb() function and is
useful for parsing JSON-RPC (among other protocols) when sent over
datagram sockets.

Signed-off-by: Nathaniel McCallum <npmccallum@redhat.com>
This commit is contained in:
Nathaniel McCallum
2017-01-26 09:46:48 +01:00
parent 746c2c3a99
commit b900967f6f
5 changed files with 77 additions and 0 deletions
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26
test/suites/api/test_dump.c
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@@ -22,6 +22,9 @@ static void encode_null()
if(json_dumps(NULL, JSON_ENCODE_ANY) != NULL)
fail("json_dumps didn't fail for NULL");
if(json_dumpb(NULL, NULL, 0, JSON_ENCODE_ANY) != 0)
fail("json_dumps didn't fail for NULL");
if(json_dumpf(NULL, stderr, JSON_ENCODE_ANY) != -1)
fail("json_dumpf didn't fail for NULL");
@@ -212,6 +215,28 @@ static void dump_file()
remove("json_dump_file.json");
}
static void dumpb()
{
char buf[2];
json_t *obj;
size_t size;
obj = json_object();
size = json_dumpb(obj, buf, sizeof(buf), 0);
if(size != 2 || strncmp(buf, "{}", 2))
fail("json_dumpb failed");
json_decref(obj);
obj = json_pack("{s:s}", "foo", "bar");
size = json_dumpb(obj, buf, sizeof(buf), JSON_COMPACT);
if(size != 13)
fail("json_dumpb size check failed");
json_decref(obj);
}
static void run_tests()
{
encode_null();
@@ -221,4 +246,5 @@ static void run_tests()
escape_slashes();
encode_nul_byte();
dump_file();
dumpb();
}