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json: add support for byte arrays to json builder

This commit is contained in:
Lennart Poettering 2020-08-16 14:34:38 +02:00
parent 7466e94f13
commit 0710343ce7
2 changed files with 32 additions and 0 deletions
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30
src/shared/json.c
View File

@ -3624,6 +3624,36 @@ int json_buildv(JsonVariant **ret, va_list ap) {
break;
}
case _JSON_BUILD_BYTE_ARRAY: {
const void *array;
size_t n;
if (!IN_SET(current->expect, EXPECT_TOPLEVEL, EXPECT_OBJECT_VALUE, EXPECT_ARRAY_ELEMENT)) {
r = -EINVAL;
goto finish;
}
array = va_arg(ap, const void*);
n = va_arg(ap, size_t);
if (current->n_suppress == 0) {
r = json_variant_new_array_bytes(&add, array, n);
if (r < 0)
goto finish;
}
n_subtract = 1;
if (current->expect == EXPECT_TOPLEVEL)
current->expect = EXPECT_END;
else if (current->expect == EXPECT_OBJECT_VALUE)
current->expect = EXPECT_OBJECT_KEY;
else
assert(current->expect == EXPECT_ARRAY_ELEMENT);
break;
}
case _JSON_BUILD_OBJECT_BEGIN:
if (!IN_SET(current->expect, EXPECT_TOPLEVEL, EXPECT_OBJECT_VALUE, EXPECT_ARRAY_ELEMENT)) {

2
src/shared/json.h
View File

@ -228,6 +228,7 @@ enum {
_JSON_BUILD_STRV,
_JSON_BUILD_BASE64,
_JSON_BUILD_ID128,
_JSON_BUILD_BYTE_ARRAY,
_JSON_BUILD_MAX,
};
@ -249,6 +250,7 @@ enum {
#define JSON_BUILD_STRV(l) _JSON_BUILD_STRV, ({ char **_x = l; _x; })
#define JSON_BUILD_BASE64(p, n) _JSON_BUILD_BASE64, ({ const void *_x = p; _x; }), ({ size_t _y = n; _y; })
#define JSON_BUILD_ID128(id) _JSON_BUILD_ID128, ({ sd_id128_t _x = id; _x; })
#define JSON_BUILD_BYTE_ARRAY(v, n) _JSON_BUILD_BYTE_ARRAY, ({ const void *_x = v; _x; }), ({ size_t _y = n; _y; })
int json_build(JsonVariant **ret, ...);
int json_buildv(JsonVariant **ret, va_list ap);