diff options
Diffstat (limited to 'src/shared/socket-util.c')
| -rw-r--r-- | src/shared/socket-util.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/src/shared/socket-util.c b/src/shared/socket-util.c index 6f4979853e..92564e3193 100644 --- a/src/shared/socket-util.c +++ b/src/shared/socket-util.c @@ -640,193 +640,6 @@ int socket_address_unlink(SocketAddress *a) { return 1; } -int in_addr_null(unsigned family, union in_addr_union *u) { - assert(u); - - if (family == AF_INET) - return u->in.s_addr == 0; - - if (family == AF_INET6) - return - u->in6.s6_addr32[0] == 0 && - u->in6.s6_addr32[1] == 0 && - u->in6.s6_addr32[2] == 0 && - u->in6.s6_addr32[3] == 0; - - return -EAFNOSUPPORT; -} - - -int in_addr_equal(unsigned family, union in_addr_union *a, union in_addr_union *b) { - assert(a); - assert(b); - - if (family == AF_INET) - return a->in.s_addr == b->in.s_addr; - - if (family == AF_INET6) - return - a->in6.s6_addr32[0] == b->in6.s6_addr32[0] && - a->in6.s6_addr32[1] == b->in6.s6_addr32[1] && - a->in6.s6_addr32[2] == b->in6.s6_addr32[2] && - a->in6.s6_addr32[3] == b->in6.s6_addr32[3]; - - return -EAFNOSUPPORT; -} - -int in_addr_prefix_intersect( - unsigned family, - const union in_addr_union *a, - unsigned aprefixlen, - const union in_addr_union *b, - unsigned bprefixlen) { - - unsigned m; - - assert(a); - assert(b); - - /* Checks whether there are any addresses that are in both - * networks */ - - m = MIN(aprefixlen, bprefixlen); - - if (family == AF_INET) { - uint32_t x, nm; - - x = be32toh(a->in.s_addr ^ b->in.s_addr); - nm = (m == 0) ? 0 : 0xFFFFFFFFUL << (32 - m); - - return (x & nm) == 0; - } - - if (family == AF_INET6) { - unsigned i; - - if (m > 128) - m = 128; - - for (i = 0; i < 16; i++) { - uint8_t x, nm; - - x = a->in6.s6_addr[i] ^ b->in6.s6_addr[i]; - - if (m < 8) - nm = 0xFF << (8 - m); - else - nm = 0xFF; - - if ((x & nm) != 0) - return 0; - - if (m > 8) - m -= 8; - else - m = 0; - } - - return 1; - } - - return -EAFNOSUPPORT; -} - -int in_addr_prefix_next(unsigned family, union in_addr_union *u, unsigned prefixlen) { - assert(u); - - /* Increases the network part of an address by one. Returns - * positive it that succeeds, or 0 if this overflows. */ - - if (prefixlen <= 0) - return 0; - - if (family == AF_INET) { - uint32_t c, n; - - if (prefixlen > 32) - prefixlen = 32; - - c = be32toh(u->in.s_addr); - n = c + (1UL << (32 - prefixlen)); - if (n < c) - return 0; - n &= 0xFFFFFFFFUL << (32 - prefixlen); - - u->in.s_addr = htobe32(n); - return 1; - } - - if (family == AF_INET6) { - struct in6_addr add = {}, result; - uint8_t overflow = 0; - unsigned i; - - if (prefixlen > 128) - prefixlen = 128; - - /* First calculate what we have to add */ - add.s6_addr[(prefixlen-1) / 8] = 1 << (7 - (prefixlen-1) % 8); - - for (i = 16; i > 0; i--) { - unsigned j = i - 1; - - result.s6_addr[j] = u->in6.s6_addr[j] + add.s6_addr[j] + overflow; - overflow = (result.s6_addr[j] < u->in6.s6_addr[j]); - } - - if (overflow) - return 0; - - u->in6 = result; - return 1; - } - - return -EAFNOSUPPORT; -} - -int in_addr_to_string(unsigned family, const union in_addr_union *u, char **ret) { - char *x; - size_t l; - - assert(u); - assert(ret); - - if (family == AF_INET) - l = INET_ADDRSTRLEN; - else if (family == AF_INET6) - l = INET6_ADDRSTRLEN; - else - return -EAFNOSUPPORT; - - x = new(char, l); - if (!x) - return -ENOMEM; - - errno = 0; - if (!inet_ntop(family, u, x, l)) { - free(x); - return errno ? -errno : -EINVAL; - } - - *ret = x; - return 0; -} - -int in_addr_from_string(unsigned family, const char *s, union in_addr_union *ret) { - - assert(s); - assert(ret); - - if (!IN_SET(family, AF_INET, AF_INET6)) - return -EAFNOSUPPORT; - - errno = 0; - if (inet_pton(family, s, ret) <= 0) - return errno ? -errno : -EINVAL; - - return 0; -} - static const char* const netlink_family_table[] = { [NETLINK_ROUTE] = "route", [NETLINK_FIREWALL] = "firewall", |