struct ipt_entry_target *
get_dnat_target(const char *input, unsigned int *nfcache) {
struct ipt_entry_target *target;
struct ipt_natinfo *info;
struct ip_nat_range range;
char *buffer;
size_t size;
/* Can't cache this */
*nfcache |= NFC_UNKNOWN;
buffer = strdup(input);
size = IPT_ALIGN(sizeof(*target)) + IPT_ALIGN(sizeof(struct ip_nat_multi_range));
target = calloc(1, size);
target->u.target_size = size;
strncpy(target->u.user.name, "DNAT", IPT_FUNCTION_MAXNAMELEN);
info = (void *)target;
parse_range(buffer, &range);
target = &(append_range(info, &range)->t);
free(buffer);
return target;
}
void solution::move_vertices( const std::list< std::pair<size_t,size_t> > & move_list )
{
std::list<std::pair<page_iterator_t,edge_t> > all_touching_edges;
for( auto i= move_list.begin(); i!= move_list.end(); ++i )
{
size_t index1= i->first;
size_t to_pos= i->second;
if( index1 >= spine_order.size() ||
to_pos > spine_order.size() )
{
throw std::out_of_range("move vertices outside of index range");
}
std::list<std::pair<page_iterator_t,edge_t> > touching_edges;
// collect touching edges
for( auto p= pages.begin(); p != pages.end(); ++p )
for( auto e= p->edges.begin(); e != p->edges.end(); ++e )
if( e->first == spine_order[index1] ||
e->second == spine_order[index1] )
{
touching_edges.push_back( make_pair(p,*e) );
all_touching_edges.push_back( make_pair(p,*e) );
}
// remove touching edges
for( auto i= touching_edges.begin(); i != touching_edges.end(); ++i )
remove_edge( * i->first, i->second );
//
// moving spine order
if( to_pos < spine_order.size() )
move_range( index1, 1, to_pos, spine_order );
else
append_range( index1, 1, spine_order );
}
// new order map
int order_count= 0;
for( auto v=spine_order.begin(); v!= spine_order.end(); ++v )
{
spine_order_map[ *v ]= order_count++;
}
// re -add edges
for( auto i= all_touching_edges.begin(); i != all_touching_edges.end(); ++i )
add_edge( * i->first, i->second );
}
static struct ipt_natinfo *parse_to(char *arg,struct ipt_natinfo *info)
{
struct nat_nf_nat_range range;
char *dash;
struct in_addr *ip = (struct in_addr*)malloc(sizeof(struct in_addr));
char *addr,*addr1;
memset(&range, 0, sizeof(range));
range.flags |= IP_NAT_RANGE_MAP_IPS;// | IP_NAT_RANGE_PROTO_SPECIFIED;
dash = strchr(arg, '-');
if (dash) {
addr = strdup(strtok(arg,"-"));
addr1 = strdup(strtok(NULL,"\0"));
} else
addr = strdup(arg);
ip->s_addr =inet_addr(addr);
if (!ip)
printf("Wrong source address\n");
range.min_ip = ip->s_addr;
if (dash) {
ip->s_addr = inet_addr(addr1);
if (!ip)
printf("Wrong source address\n");
range.max_ip = ip->s_addr;
} else
range.max_ip = range.min_ip;
free(addr);
if (dash)
free(addr1);
range.min = htons(0);
range.max = htons(65535);
return append_range(info, &range);
}
/* Ranges expected in network order. */
static struct xt_entry_target *
parse_to(char *arg, int portok, struct ipt_natinfo *info)
{
struct nf_nat_range range;
char *colon, *dash, *error;
const struct in_addr *ip;
memset(&range, 0, sizeof(range));
colon = strchr(arg, ':');
if (colon) {
int port;
if (!portok)
xtables_error(PARAMETER_PROBLEM,
"Need TCP, UDP, SCTP or DCCP with port specification");
range.flags |= IP_NAT_RANGE_PROTO_SPECIFIED;
port = atoi(colon+1);
if (port <= 0 || port > 65535)
xtables_error(PARAMETER_PROBLEM,
"Port `%s' not valid\n", colon+1);
error = strchr(colon+1, ':');
if (error)
xtables_error(PARAMETER_PROBLEM,
"Invalid port:port syntax - use dash\n");
dash = strchr(colon, '-');
if (!dash) {
range.min.tcp.port
= range.max.tcp.port
= htons(port);
} else {
int maxport;
maxport = atoi(dash + 1);
if (maxport <= 0 || maxport > 65535)
xtables_error(PARAMETER_PROBLEM,
"Port `%s' not valid\n", dash+1);
if (maxport < port)
/* People are stupid. */
xtables_error(PARAMETER_PROBLEM,
"Port range `%s' funky\n", colon+1);
range.min.tcp.port = htons(port);
range.max.tcp.port = htons(maxport);
}
/* Starts with a colon? No IP info...*/
if (colon == arg)
return &(append_range(info, &range)->t);
*colon = '\0';
}
range.flags |= IP_NAT_RANGE_MAP_IPS;
dash = strchr(arg, '-');
if (colon && dash && dash > colon)
dash = NULL;
if (dash)
*dash = '\0';
ip = xtables_numeric_to_ipaddr(arg);
if (!ip)
xtables_error(PARAMETER_PROBLEM, "Bad IP address \"%s\"\n",
arg);
range.min_ip = ip->s_addr;
if (dash) {
ip = xtables_numeric_to_ipaddr(dash+1);
if (!ip)
xtables_error(PARAMETER_PROBLEM, "Bad IP address \"%s\"\n",
dash+1);
range.max_ip = ip->s_addr;
} else
range.max_ip = range.min_ip;
return &(append_range(info, &range)->t);
}