/*
* Binary receive.
*/
Datum
json_recv(PG_FUNCTION_ARGS)
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
text *result;
char *str;
int nbytes;
str = pq_getmsgtext(buf, buf->len - buf->cursor, &nbytes);
/*
* We need a null-terminated string to pass to json_validate_cstring().
* Rather than make a separate copy, make the temporary result one byte
* bigger than it needs to be.
*/
result = palloc(nbytes + 1 + VARHDRSZ);
SET_VARSIZE(result, nbytes + VARHDRSZ);
memcpy(VARDATA(result), str, nbytes);
str = VARDATA(result);
str[nbytes] = '\0';
/* Validate it. */
json_validate_cstring(str);
PG_RETURN_TEXT_P(result);
}
/*
* Input.
*/
Datum
json_in(PG_FUNCTION_ARGS)
{
char *text = PG_GETARG_CSTRING(0);
json_validate_cstring(text);
PG_RETURN_TEXT_P(cstring_to_text(text));
}
/*
* Input.
*/
Datum
json_in(PG_FUNCTION_ARGS)
{
char *text = PG_GETARG_CSTRING(0);
json_validate_cstring(text);
/* Internal representation is the same as text, for now */
PG_RETURN_TEXT_P(cstring_to_text(text));
}
