Datum ascii_to_mic(PG_FUNCTION_ARGS) { unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2); unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3); int len = PG_GETARG_INT32(4); CHECK_ENCODING_CONVERSION_ARGS(PG_SQL_ASCII, PG_MULE_INTERNAL); pg_ascii2mic(src, dest, len); PG_RETURN_VOID(); }
Datum ascii_to_utf8(PG_FUNCTION_ARGS) { unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2); unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3); int len = PG_GETARG_INT32(4); CHECK_ENCODING_CONVERSION_ARGS(PG_SQL_ASCII, PG_UTF8); /* this looks wrong, but basically we're just rejecting high-bit-set */ pg_ascii2mic(src, dest, len); PG_RETURN_VOID(); }
Datum ascii_to_utf8(PG_FUNCTION_ARGS) { unsigned char *src = (unsigned char *) PG_GETARG_CSTRING(2); unsigned char *dest = (unsigned char *) PG_GETARG_CSTRING(3); int len = PG_GETARG_INT32(4); Assert(PG_GETARG_INT32(0) == PG_SQL_ASCII); Assert(PG_GETARG_INT32(1) == PG_UTF8); Assert(len >= 0); pg_ascii2mic(src, dest, len); PG_RETURN_VOID(); }