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util: introduce in_addr_default_prefix_from_string() and friends

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It is similar to in_addr_prefix_from_string() but it determines
the prefix length from address if it is not specified.
This commit is contained in:
Yu Watanabe
2018-11-05 16:46:26 +09:00
parent 67944f5c26
commit a4798d4e6d
2 changed files with 26 additions and 4 deletions
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src/basic/in-addr-util.h
+14 -2
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@@ -45,8 +45,20 @@ int in4_addr_default_subnet_mask(const struct in_addr *addr, struct in_addr *mas
int in_addr_mask(int family, union in_addr_union *addr, unsigned char prefixlen);
int in_addr_prefix_covers(int family, const union in_addr_union *prefix, unsigned char prefixlen, const union in_addr_union *address);
int in_addr_parse_prefixlen(int family, const char *p, unsigned char *ret);
int in_addr_prefix_from_string(const char *p, int family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen);
int in_addr_prefix_from_string_auto(const char *p, int *ret_family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen);
int in_addr_prefix_from_string_internal(const char *p, bool use_default_prefixlen, int family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen);
int in_addr_prefix_from_string_auto_internal(const char *p, bool use_default_prefixlen, int *ret_family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen);
static inline int in_addr_prefix_from_string(const char *p, int family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen) {
return in_addr_prefix_from_string_internal(p, false, family, ret_prefix, ret_prefixlen);
}
static inline int in_addr_prefix_from_string_auto(const char *p, int *ret_family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen) {
return in_addr_prefix_from_string_auto_internal(p, false, ret_family, ret_prefix, ret_prefixlen);
}
static inline int in_addr_default_prefix_from_string(const char *p, int family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen) {
return in_addr_prefix_from_string_internal(p, true, family, ret_prefix, ret_prefixlen);
}
static inline int in_addr_default_prefix_from_string_auto(const char *p, int *ret_family, union in_addr_union *ret_prefix, unsigned char *ret_prefixlen) {
return in_addr_prefix_from_string_auto_internal(p, true, ret_family, ret_prefix, ret_prefixlen);
}
static inline size_t FAMILY_ADDRESS_SIZE(int family) {
assert(IN_SET(family, AF_INET, AF_INET6));