/** * @return A halloc()ed string. */ static char * proxy_sequence_to_string(const sequence_t *s) { str_t *str; str = str_new(0); if (!sequence_is_empty(s)) { sequence_iter_t *iter; iter = sequence_forward_iterator(s); while (sequence_iter_has_next(iter)) { gnet_host_t *host = sequence_iter_next(iter); str_putc(str, ':'); str_cat(str, gnet_host_to_string(host)); } sequence_iterator_release(&iter); } return str_s2c_null(&str); }
/** * Create a new Gnutella host vector out of a sequence of gnet_host_t items. */ static gnet_host_vec_t * gnet_host_vec_from_sequence(sequence_t *s) { sequence_iter_t *iter; gnet_host_vec_t *vec; uint n_ipv6 = 0, n_ipv4 = 0, hcnt; if (sequence_is_empty(s)) return NULL; hcnt = 0; iter = sequence_forward_iterator(s); while (sequence_iter_has_next(iter)) { const gnet_host_t *host = sequence_iter_next(iter); switch (gnet_host_get_net(host)) { case NET_TYPE_IPV4: n_ipv4++; hcnt++; break; case NET_TYPE_IPV6: n_ipv6++; hcnt++; break; case NET_TYPE_LOCAL: case NET_TYPE_NONE: break; } } sequence_iterator_release(&iter); if (0 == hcnt) return NULL; vec = gnet_host_vec_alloc(); vec->n_ipv4 = MIN(n_ipv4, 255); vec->n_ipv6 = MIN(n_ipv6, 255); if (vec->n_ipv4 > 0) WALLOC_ARRAY(vec->hvec_v4, vec->n_ipv4); if (vec->n_ipv6 > 0) WALLOC_ARRAY(vec->hvec_v6, vec->n_ipv6); n_ipv4 = 0; n_ipv6 = 0; iter = sequence_forward_iterator(s); while (sequence_iter_has_next(iter)) { const gnet_host_t *host = sequence_iter_next(iter); host_addr_t addr = gnet_host_get_addr(host); uint16 port = gnet_host_get_port(host); switch (gnet_host_get_net(host)) { case NET_TYPE_IPV4: if (n_ipv4 < vec->n_ipv4) { char *dest = cast_to_pointer(&vec->hvec_v4[n_ipv4++]); poke_be32(&dest[0], host_addr_ipv4(addr)); poke_le16(&dest[4], port); } break; case NET_TYPE_IPV6: if (n_ipv6 < vec->n_ipv6) { char *dest = cast_to_pointer(&vec->hvec_v6[n_ipv6++]); dest = mempcpy(dest, host_addr_ipv6(&addr), 16); poke_le16(dest, port); } break; case NET_TYPE_LOCAL: case NET_TYPE_NONE: break; } } sequence_iterator_release(&iter); return vec; }