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basic: generate netmasks for IPv6 and generic IP family addresses

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Added functions to generate netmasks for IPv6 and generic IP family addresses.
This commit is contained in:
Topi Miettinen
2022-08-29 14:23:17 +09:00
committed by Yu Watanabe
parent 9442b2f78f
commit 3f36b9ed47
3 changed files with 96 additions and 0 deletions
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src/basic/in-addr-util.h
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@@ -138,6 +138,8 @@ int in_addr_from_string_auto(const char *s, int *ret_family, union in_addr_union
unsigned char in4_addr_netmask_to_prefixlen(const struct in_addr *addr);
struct in_addr* in4_addr_prefixlen_to_netmask(struct in_addr *addr, unsigned char prefixlen);
struct in6_addr* in6_addr_prefixlen_to_netmask(struct in6_addr *addr, unsigned char prefixlen);
int in_addr_prefixlen_to_netmask(int family, union in_addr_union *addr, unsigned char prefixlen);
int in4_addr_default_prefixlen(const struct in_addr *addr, unsigned char *prefixlen);
int in4_addr_default_subnet_mask(const struct in_addr *addr, struct in_addr *mask);
int in4_addr_mask(struct in_addr *addr, unsigned char prefixlen);