diff options
| -rw-r--r-- | src/basic/in-addr-util.c | 20 | ||||
| -rw-r--r-- | src/basic/in-addr-util.h | 3 |
2 files changed, 17 insertions, 6 deletions
diff --git a/src/basic/in-addr-util.c b/src/basic/in-addr-util.c index 245107ebb8..1447fa84aa 100644 --- a/src/basic/in-addr-util.c +++ b/src/basic/in-addr-util.c @@ -28,18 +28,26 @@ #include "macro.h" #include "util.h" +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) { + return + a->s6_addr32[0] == 0 && + a->s6_addr32[1] == 0 && + a->s6_addr32[2] == 0 && + a->s6_addr32[3] == 0; +} + int in_addr_is_null(int family, const union in_addr_union *u) { assert(u); if (family == AF_INET) - return u->in.s_addr == 0; + return in4_addr_is_null(&u->in); if (family == AF_INET6) - return - u->in6.s6_addr32[0] == 0 && - u->in6.s6_addr32[1] == 0 && - u->in6.s6_addr32[2] == 0 && - u->in6.s6_addr32[3] == 0; + return in6_addr_is_null(&u->in6); return -EAFNOSUPPORT; } diff --git a/src/basic/in-addr-util.h b/src/basic/in-addr-util.h index 17798ce816..62cc1e1aa4 100644 --- a/src/basic/in-addr-util.h +++ b/src/basic/in-addr-util.h @@ -36,6 +36,9 @@ struct in_addr_data { union in_addr_union address; }; +bool in4_addr_is_null(const struct in_addr *a); +bool in6_addr_is_null(const struct in6_addr *a); + int in_addr_is_null(int family, const union in_addr_union *u); int in_addr_is_link_local(int family, const union in_addr_union *u); int in_addr_is_localhost(int family, const union in_addr_union *u); |