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71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
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#ifndef __NETWORK_H
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#define __NETWORK_H
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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struct _ipaddr {
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unsigned short family;
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union {
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#ifdef HAVE_IPV6
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struct in6_addr ip6;
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#else
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struct in_addr ip;
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#endif
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} addr;
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};
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typedef struct _ipaddr IPADDR;
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/* maxmimum string length of IP address */
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#ifdef HAVE_IPV6
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# define MAX_IP_LEN INET6_ADDRSTRLEN
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#else
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# define MAX_IP_LEN 20
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#endif
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#define is_ipv6_addr(ip) ((ip)->family != AF_INET)
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/* returns 1 if IPADDRs are the same */
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int net_ip_compare(IPADDR *ip1, IPADDR *ip2);
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/* Connect to socket */
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int net_connect(const char *addr, int port, IPADDR *my_ip);
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/* Connect to socket with ip address */
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int net_connect_ip(IPADDR *ip, int port, IPADDR *my_ip);
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/* Disconnect socket */
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void net_disconnect(int handle);
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/* Try to let the other side close the connection, if it still isn't
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disconnected after certain amount of time, close it ourself */
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void net_disconnect_later(int handle);
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/* Listen for connections on a socket */
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int net_listen(IPADDR *my_ip, int *port);
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/* Accept a connection on a socket */
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int net_accept(int handle, IPADDR *addr, int *port);
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/* Read data from socket, return number of bytes read, -1 = error */
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int net_receive(int handle, char *buf, int len);
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/* Transmit data, return number of bytes sent, -1 = error */
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int net_transmit(int handle, const char *data, int len);
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/* Get IP address for host, returns 0 = ok,
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others = error code for net_gethosterror() */
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int net_gethostname(const char *addr, IPADDR *ip);
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/* get error of net_gethostname() */
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const char *net_gethosterror(int error);
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/* Get socket address/port */
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int net_getsockname(int handle, IPADDR *addr, int *port);
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int net_ip2host(IPADDR *ip, char *host);
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int net_host2ip(const char *host, IPADDR *ip);
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/* Get socket error */
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int net_geterror(int handle);
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int is_ipv4_address(const char *host);
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int is_ipv6_address(const char *host);
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#endif
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