1 /* SPDX-License-Identifier: LGPL-2.1+ */
9 #include "bus-signature.h"
12 static int signature_element_length_internal(
14 bool allow_dict_entry,
16 unsigned struct_depth,
26 if (bus_type_is_basic(*s) || *s == SD_BUS_TYPE_VARIANT) {
31 if (*s == SD_BUS_TYPE_ARRAY) {
34 if (array_depth >= 32)
37 r = signature_element_length_internal(s + 1, true, array_depth+1, struct_depth, &t);
45 if (*s == SD_BUS_TYPE_STRUCT_BEGIN) {
46 const char *p = s + 1;
48 if (struct_depth >= 32)
51 while (*p != SD_BUS_TYPE_STRUCT_END) {
54 r = signature_element_length_internal(p, false, array_depth, struct_depth+1, &t);
65 if (*s == SD_BUS_TYPE_DICT_ENTRY_BEGIN && allow_dict_entry) {
66 const char *p = s + 1;
69 if (struct_depth >= 32)
72 while (*p != SD_BUS_TYPE_DICT_ENTRY_END) {
75 if (n == 0 && !bus_type_is_basic(*p))
78 r = signature_element_length_internal(p, false, array_depth, struct_depth+1, &t);
96 int signature_element_length(const char *s, size_t *l) {
97 return signature_element_length_internal(s, true, 0, 0, l);
100 bool signature_is_single(const char *s, bool allow_dict_entry) {
107 r = signature_element_length_internal(s, allow_dict_entry, 0, 0, &t);
114 bool signature_is_pair(const char *s) {
119 if (!bus_type_is_basic(*s))
122 return signature_is_single(s + 1, false);
125 bool signature_is_valid(const char *s, bool allow_dict_entry) {
136 r = signature_element_length_internal(p, allow_dict_entry, 0, 0, &t);