import winsup-2000-02-17 snapshot

winsup/cygwin/include/cygwin/if.h

@@ -0,0 +1,74 @@
+#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_ */