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- #ifndef _CYGWIN_IF_H_
- #define _CYGWIN_IF_H_
-
- #ifdef __cplusplus
- extern "C" {
- #endif /* __cplusplus */
-
- #include <sys/types.h>
- #include <sys/socket.h>
-
- /* Standard interface flags. */
- #define IFF_UP 0x1 /* interface is up */
- #define IFF_BROADCAST 0x2 /* broadcast address valid */
- #define IFF_LOOPBACK 0x8 /* is a loopback net */
- #define IFF_NOTRAILERS 0x20 /* avoid use of trailers */
- #define IFF_RUNNING 0x40 /* resources allocated */
- #define IFF_PROMISC 0x100 /* receive all packets */
- #define IFF_MULTICAST 0x1000 /* Supports multicast */
-
- /*
- * Interface request structure used for socket
- * ioctl's. All interface ioctl's must have parameter
- * definitions which begin with ifr_name. The
- * remainder may be interface specific.
- */
-
- struct ifreq
- {
- #define IFNAMSIZ 16
- union
- {
- char ifrn_name[IFNAMSIZ]; /* if name, e.g. "en0" */
- } ifr_ifrn;
-
- union {
- struct sockaddr ifru_addr;
- struct sockaddr ifru_broadaddr;
- struct sockaddr ifru_netmask;
- short ifru_flags;
- int ifru_metric;
- int ifru_mtu;
- } ifr_ifru;
- };
-
- #define ifr_name ifr_ifrn.ifrn_name /* interface name */
- #define ifr_addr ifr_ifru.ifru_addr /* address */
- #define ifr_broadaddr ifr_ifru.ifru_broadaddr /* broadcast address */
- #define ifr_netmask ifr_ifru.ifru_netmask /* interface net mask */
- #define ifr_flags ifr_ifru.ifru_flags /* flags */
-
- /*
- * Structure used in SIOCGIFCONF request.
- * Used to retrieve interface configuration
- * for machine (useful for programs which
- * must know all networks accessible).
- */
-
- struct ifconf
- {
- int ifc_len; /* size of buffer */
- union
- {
- caddr_t ifcu_buf;
- struct ifreq *ifcu_req;
- } ifc_ifcu;
- };
- #define ifc_buf ifc_ifcu.ifcu_buf /* buffer address */
- #define ifc_req ifc_ifcu.ifcu_req /* array of structures */
-
- #ifdef __cplusplus
- };
- #endif /* __cplusplus */
-
- #endif /* _CYGWIN_IF_H_ */
-