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in-addr-util: introduce in_addr_is_set() or friends

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This commit is contained in:
Yu Watanabe 2021-02-18 00:36:38 +09:00
parent 0c0585ca25
commit 7653dcc328
2 changed files with 24 additions and 1 deletions
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8
src/basic/in-addr-util.c
View File

@ -24,6 +24,12 @@ bool in4_addr_is_null(const struct in_addr *a) {
return a->s_addr == 0;
}
bool in6_addr_is_null(const struct in6_addr *a) {
assert(a);
return IN6_IS_ADDR_UNSPECIFIED(a);
}
int in_addr_is_null(int family, const union in_addr_union *u) {
assert(u);
@ -31,7 +37,7 @@ int in_addr_is_null(int family, const union in_addr_union *u) {
return in4_addr_is_null(&u->in);
if (family == AF_INET6)
return IN6_IS_ADDR_UNSPECIFIED(&u->in6);
return in6_addr_is_null(&u->in6);
return -EAFNOSUPPORT;
}

17
src/basic/in-addr-util.h
View File

@ -21,7 +21,24 @@ struct in_addr_data {
};
bool in4_addr_is_null(const struct in_addr *a);
static inline bool in4_addr_is_set(const struct in_addr *a) {
return !in4_addr_is_null(a);
}
bool in6_addr_is_null(const struct in6_addr *a);
static inline bool in6_addr_is_set(const struct in6_addr *a) {
return !in6_addr_is_null(a);
}
int in_addr_is_null(int family, const union in_addr_union *u);
static inline bool in_addr_is_set(int family, const union in_addr_union *u) {
return in_addr_is_null(family, u) == 0;
}
static inline int in_addr_data_is_null(const struct in_addr_data *a) {
assert(a);
return in_addr_is_null(a->family, &a->address);
}
static inline bool in_addr_data_is_set(const struct in_addr_data *a) {
return in_addr_data_is_null(a);
}
int in_addr_is_multicast(int family, const union in_addr_union *u);