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