shared: split out in_addr related calls from socket-util.[ch] into its private in-addr-util.[ch]

These are enough calls for a new file, and they are sufficiently
different from the sockaddr-related calls, hence let's split this out.

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",