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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.c
+12 -2
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@@ -495,8 +495,9 @@ int in_addr_parse_prefixlen(int family, const char *p, unsigned char *ret) {
return 0;
}
int in_addr_prefix_from_string(
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) {
@@ -530,6 +531,10 @@ int in_addr_prefix_from_string(
r = in_addr_parse_prefixlen(family, e+1, &k);
if (r < 0)
return r;
} else if (family == AF_INET && use_default_prefixlen) {
r = in4_addr_default_prefixlen(&buffer.in, &k);
if (r < 0)
return r;
} else
k = FAMILY_ADDRESS_SIZE(family) * 8;
@@ -541,8 +546,9 @@ int in_addr_prefix_from_string(
return 0;
}
int in_addr_prefix_from_string_auto(
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) {
@@ -573,6 +579,10 @@ int in_addr_prefix_from_string_auto(
r = in_addr_parse_prefixlen(family, e+1, &k);
if (r < 0)
return r;
} else if (family == AF_INET && use_default_prefixlen) {
r = in4_addr_default_prefixlen(&buffer.in, &k);
if (r < 0)
return r;
} else
k = FAMILY_ADDRESS_SIZE(family) * 8;