42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
#pragma once
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#include <stdint.h>
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#include <netinet/in.h>
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#include "../gtp/pdp.h"
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/* a simple wrapper around an in6_addr to also contain the length of the address,
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* thereby implicitly indicating the address family of the address */
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struct in46_addr {
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uint8_t len;
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union {
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struct in_addr v4;
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struct in6_addr v6;
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};
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};
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struct in46_prefix {
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struct in46_addr addr;
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uint8_t prefixlen;
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};
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extern int in46a_to_af(const struct in46_addr *in);
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extern int in46a_to_sas(struct sockaddr_storage *out, const struct in46_addr *in);
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extern const char *in46a_ntop(const struct in46_addr *in, char *dst, socklen_t dst_size);
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extern const char *in46a_ntoa(const struct in46_addr *in46);
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extern const char *in46p_ntoa(const struct in46_prefix *in46p);
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extern int in46a_equal(const struct in46_addr *a, const struct in46_addr *b);
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extern int in46a_prefix_equal(const struct in46_addr *a, const struct in46_addr *b);
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extern int in46a_within_mask(const struct in46_addr *addr, const struct in46_addr *net, size_t prefixlen);
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unsigned int in46a_netmasklen(const struct in46_addr *netmask);
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int in46a_to_eua(const struct in46_addr *src, unsigned int size, struct ul66_t *eua);
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int in46a_from_eua(const struct ul66_t *eua, struct in46_addr *dst);
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static inline bool in46a_is_v6(const struct in46_addr *addr) {
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return addr->len == 8 || addr->len == 16;
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}
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static inline bool in46a_is_v4(const struct in46_addr *addr) {
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return addr->len == sizeof(struct in_addr);
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}
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