227 int in_addr_prefix_next(int family, union in_addr_union *u, unsigned prefixlen) {  in in_addr_prefix_next()  argument
233         return in_addr_prefix_nth(family, u, prefixlen, 1);  in in_addr_prefix_next()
251 int in_addr_prefix_nth(int family, union in_addr_union *u, unsigned prefixlen, uint64_t nth) {  in in_addr_prefix_nth()  argument
254         if (prefixlen <= 0)  in in_addr_prefix_nth()
260                 if (prefixlen > 32)  in in_addr_prefix_nth()
265                 t = nth << (32 - prefixlen);  in in_addr_prefix_nth()
273                 n &= UINT32_C(0xFFFFFFFF) << (32 - prefixlen);  in in_addr_prefix_nth()
281                 if (prefixlen > 128)  in in_addr_prefix_nth()
287                         if (p >= prefixlen) {  in in_addr_prefix_nth()
292                         if (prefixlen - p < 8) {  in in_addr_prefix_nth()
293                                 u->in6.s6_addr[j] &= 0xff << (8 - (prefixlen - p));  in in_addr_prefix_nth()
294                                 t = u->in6.s6_addr[j] + ((nth & 0xff) << (8 - (prefixlen - p)));  in in_addr_prefix_nth()
295                                 nth >>= prefixlen - p;  in in_addr_prefix_nth()
318                 unsigned prefixlen) {  in in_addr_random_prefix()  argument
324         if (prefixlen <= 0)  in in_addr_random_prefix()
332                 if (prefixlen > 32)  in in_addr_random_prefix()
333                         prefixlen = 32;  in in_addr_random_prefix()
334                 if (prefixlen_fixed_part >= prefixlen)  in in_addr_random_prefix()
341                 n &= ((UINT32_C(1) << (prefixlen - prefixlen_fixed_part)) - 1) << (32 - prefixlen);  in in_addr_random_prefix()
353                 if (prefixlen > 128)  in in_addr_random_prefix()
354                         prefixlen = 128;  in in_addr_random_prefix()
355                 if (prefixlen_fixed_part >= prefixlen)  in in_addr_random_prefix()
372                         if (i < (prefixlen + 7) / 8) {  in in_addr_random_prefix()
373                                 if (i < prefixlen / 8)  in in_addr_random_prefix()
376                                         j = prefixlen % 8;  in in_addr_random_prefix()
394                 unsigned prefixlen,  in in_addr_prefix_range()  argument
408                 r = in_addr_prefix_nth(family, &start, prefixlen, 0);  in in_addr_prefix_range()
415                 r = in_addr_prefix_nth(family, &end, prefixlen, 1);  in in_addr_prefix_range()
454 int in_addr_prefix_to_string(int family, const union in_addr_union *u, unsigned prefixlen, char **r…  in in_addr_prefix_to_string()  argument
469         if (prefixlen > FAMILY_ADDRESS_SIZE(family) * 8)  in in_addr_prefix_to_string()
482         (void) strpcpyf(&p, l, "/%u", prefixlen);  in in_addr_prefix_to_string()
585 struct in_addr* in4_addr_prefixlen_to_netmask(struct in_addr *addr, unsigned char prefixlen) {  in in4_addr_prefixlen_to_netmask()  argument
587         assert(prefixlen <= 32);  in in4_addr_prefixlen_to_netmask()
590         if (prefixlen == 0)  in in4_addr_prefixlen_to_netmask()
593                 addr->s_addr = htobe32((0xffffffff << (32 - prefixlen)) & 0xffffffff);  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
604         assert(prefixlen);  in in4_addr_default_prefixlen()
608                 *prefixlen = 8;  in in4_addr_default_prefixlen()
611                 *prefixlen = 16;  in in4_addr_default_prefixlen()
614                 *prefixlen = 24;  in in4_addr_default_prefixlen()
623         unsigned char prefixlen;  in in4_addr_default_subnet_mask()  local
629         r = in4_addr_default_prefixlen(addr, &prefixlen);  in in4_addr_default_subnet_mask()
633         in4_addr_prefixlen_to_netmask(mask, prefixlen);  in in4_addr_default_subnet_mask()
637 int in4_addr_mask(struct in_addr *addr, unsigned char prefixlen) {  in in4_addr_mask()  argument
642         if (!in4_addr_prefixlen_to_netmask(&mask, prefixlen))  in in4_addr_mask()
649 int in6_addr_mask(struct in6_addr *addr, unsigned char prefixlen) {  in in6_addr_mask()  argument
655                 if (prefixlen >= 8) {  in in6_addr_mask()
657                         prefixlen -= 8;  in in6_addr_mask()
658                 } else if (prefixlen > 0) {  in in6_addr_mask()
659                         mask = 0xFF << (8 - prefixlen);  in in6_addr_mask()
660                         prefixlen = 0;  in in6_addr_mask()
662                         assert(prefixlen == 0);  in in6_addr_mask()
672 int in_addr_mask(int family, union in_addr_union *addr, unsigned char prefixlen) {  in in_addr_mask()  argument
677                 return in4_addr_mask(&addr->in, prefixlen);  in in_addr_mask()
679                 return in6_addr_mask(&addr->in6, prefixlen);  in in_addr_mask()
687                 unsigned char prefixlen,  in in4_addr_prefix_covers()  argument
697         r = in4_addr_mask(&masked_prefix, prefixlen);  in in4_addr_prefix_covers()
702         r = in4_addr_mask(&masked_address, prefixlen);  in in4_addr_prefix_covers()
711                 unsigned char prefixlen,  in in6_addr_prefix_covers()  argument
721         r = in6_addr_mask(&masked_prefix, prefixlen);  in in6_addr_prefix_covers()
726         r = in6_addr_mask(&masked_address, prefixlen);  in in6_addr_prefix_covers()
736                 unsigned char prefixlen,  in in_addr_prefix_covers()  argument
744                 return in4_addr_prefix_covers(&prefix->in, prefixlen, &address->in);  in in_addr_prefix_covers()
746                 return in6_addr_prefix_covers(&prefix->in6, prefixlen, &address->in6);  in in_addr_prefix_covers()