579 unsigned char in4_addr_netmask_to_prefixlen(const struct in_addr *addr) {  in in4_addr_netmask_to_prefixlen()  argument
580         assert(addr);  in in4_addr_netmask_to_prefixlen()
582         return 32U - u32ctz(be32toh(addr->s_addr));  in in4_addr_netmask_to_prefixlen()
585 struct in_addr* in4_addr_prefixlen_to_netmask(struct in_addr *addr, unsigned char prefixlen) {  in in4_addr_prefixlen_to_netmask()  argument
586         assert(addr);  in in4_addr_prefixlen_to_netmask()
591                 addr->s_addr = 0;  in in4_addr_prefixlen_to_netmask()
593                 addr->s_addr = htobe32((0xffffffff << (32 - prefixlen)) & 0xffffffff);  in in4_addr_prefixlen_to_netmask()
595         return addr;  in in4_addr_prefixlen_to_netmask()
598 int in4_addr_default_prefixlen(const struct in_addr *addr, unsigned char *prefixlen) {  in in4_addr_default_prefixlen()  argument
599         uint8_t msb_octet = *(uint8_t*) addr;  in in4_addr_default_prefixlen()
603         assert(addr);  in in4_addr_default_prefixlen()
622 int in4_addr_default_subnet_mask(const struct in_addr *addr, struct in_addr *mask) {  in in4_addr_default_subnet_mask()  argument
626         assert(addr);  in in4_addr_default_subnet_mask()
629         r = in4_addr_default_prefixlen(addr, &prefixlen);  in in4_addr_default_subnet_mask()
637 int in4_addr_mask(struct in_addr *addr, unsigned char prefixlen) {  in in4_addr_mask()  argument
640         assert(addr);  in in4_addr_mask()
645         addr->s_addr &= mask.s_addr;  in in4_addr_mask()
649 int in6_addr_mask(struct in6_addr *addr, unsigned char prefixlen) {  in in6_addr_mask()  argument
666                 addr->s6_addr[i] &= mask;  in in6_addr_mask()
672 int in_addr_mask(int family, union in_addr_union *addr, unsigned char prefixlen) {  in in_addr_mask()  argument
673         assert(addr);  in in_addr_mask()
677                 return in4_addr_mask(&addr->in, prefixlen);  in in_addr_mask()
679                 return in6_addr_mask(&addr->in6, prefixlen);  in in_addr_mask()
902 void in6_addr_hash_func(const struct in6_addr *addr, struct siphash *state) {  in in6_addr_hash_func()  argument
903         assert(addr);  in in6_addr_hash_func()
906         siphash24_compress(addr, sizeof(*addr), state);  in in6_addr_hash_func()