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netinet: add ipv6 address ioctl macros #447

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Merged
rmikielis merged 1 commit into from
Oct 23, 2025
Merged

netinet: add ipv6 address ioctl macros #447

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9 changes: 7 additions & 2 deletions include/netinet/in.h
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Original file line number Diff line number Diff line change
Expand Up @@ -118,8 +118,7 @@ extern const struct in6_addr in6addr_loopback;
(a)->s6_addr32[2] == 0 && (a)->s6_addr32[3] == 0x01000000))

/* Multicast address */
#define IN6_IS_ADDR_MULTICAST(a) \
(((a)->s6_addr[0] == 0xff))
#define IN6_IS_ADDR_MULTICAST(a) (((a)->s6_addr[0] == 0xff))

/* Unicast link-local address */
#define IN6_IS_ADDR_LINKLOCAL(a) \
Expand All @@ -129,6 +128,12 @@ extern const struct in6_addr in6addr_loopback;
#define IN6_IS_ADDR_SITELOCAL(a) \
(((a)->s6_addr[0] == 0xfe && (a)->s6_addr[1] == 0xc0))

/* Unicast unique-local address */
#define IN6_IS_ADDR_ULA(a) (((a)->s6_addr[0] & 0xfe) == 0xfc)

/* Unicast global address */
#define IN6_IS_ADDR_GLOBAL(a) (((a)->s6_addr[0] >= 0x20 && (a)->s6_addr[0] <= 0x3F))

/* IPv4 mapped address */
#define IN6_IS_ADDR_V4MAPPED(a) \
(((a)->s6_addr32[0] == 0 && (a)->s6_addr32[1] == 0 && \
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