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diff --git a/i686-linux-gnu-4.7/usr/include/net/if.h b/i686-linux-gnu-4.7/usr/include/net/if.h
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+/* net/if.h -- declarations for inquiring about network interfaces
+ Copyright (C) 1997-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ . */
+
+#ifndef _NET_IF_H
+#define _NET_IF_H 1
+
+#include
+
+#ifdef __USE_MISC
+# include
+# include
+#endif
+
+
+/* Length of interface name. */
+#define IF_NAMESIZE 16
+
+struct if_nameindex
+ {
+ unsigned int if_index; /* 1, 2, ... */
+ char *if_name; /* null terminated name: "eth0", ... */
+ };
+
+
+#ifdef __USE_MISC
+/* Standard interface flags. */
+enum
+ {
+ IFF_UP = 0x1, /* Interface is up. */
+# define IFF_UP IFF_UP
+ IFF_BROADCAST = 0x2, /* Broadcast address valid. */
+# define IFF_BROADCAST IFF_BROADCAST
+ IFF_DEBUG = 0x4, /* Turn on debugging. */
+# define IFF_DEBUG IFF_DEBUG
+ IFF_LOOPBACK = 0x8, /* Is a loopback net. */
+# define IFF_LOOPBACK IFF_LOOPBACK
+ IFF_POINTOPOINT = 0x10, /* Interface is point-to-point link. */
+# define IFF_POINTOPOINT IFF_POINTOPOINT
+ IFF_NOTRAILERS = 0x20, /* Avoid use of trailers. */
+# define IFF_NOTRAILERS IFF_NOTRAILERS
+ IFF_RUNNING = 0x40, /* Resources allocated. */
+# define IFF_RUNNING IFF_RUNNING
+ IFF_NOARP = 0x80, /* No address resolution protocol. */
+# define IFF_NOARP IFF_NOARP
+ IFF_PROMISC = 0x100, /* Receive all packets. */
+# define IFF_PROMISC IFF_PROMISC
+
+ /* Not supported */
+ IFF_ALLMULTI = 0x200, /* Receive all multicast packets. */
+# define IFF_ALLMULTI IFF_ALLMULTI
+
+ IFF_MASTER = 0x400, /* Master of a load balancer. */
+# define IFF_MASTER IFF_MASTER
+ IFF_SLAVE = 0x800, /* Slave of a load balancer. */
+# define IFF_SLAVE IFF_SLAVE
+
+ IFF_MULTICAST = 0x1000, /* Supports multicast. */
+# define IFF_MULTICAST IFF_MULTICAST
+
+ IFF_PORTSEL = 0x2000, /* Can set media type. */
+# define IFF_PORTSEL IFF_PORTSEL
+ IFF_AUTOMEDIA = 0x4000, /* Auto media select active. */
+# define IFF_AUTOMEDIA IFF_AUTOMEDIA
+ IFF_DYNAMIC = 0x8000 /* Dialup device with changing addresses. */
+# define IFF_DYNAMIC IFF_DYNAMIC
+ };
+
+/* The ifaddr structure contains information about one address of an
+ interface. They are maintained by the different address families,
+ are allocated and attached when an address is set, and are linked
+ together so all addresses for an interface can be located. */
+
+struct ifaddr
+ {
+ struct sockaddr ifa_addr; /* Address of interface. */
+ union
+ {
+ struct sockaddr ifu_broadaddr;
+ struct sockaddr ifu_dstaddr;
+ } ifa_ifu;
+ struct iface *ifa_ifp; /* Back-pointer to interface. */
+ struct ifaddr *ifa_next; /* Next address for interface. */
+ };
+
+# define ifa_broadaddr ifa_ifu.ifu_broadaddr /* broadcast address */
+# define ifa_dstaddr ifa_ifu.ifu_dstaddr /* other end of link */
+
+/* Device mapping structure. I'd just gone off and designed a
+ beautiful scheme using only loadable modules with arguments for
+ driver options and along come the PCMCIA people 8)
+
+ Ah well. The get() side of this is good for WDSETUP, and it'll be
+ handy for debugging things. The set side is fine for now and being
+ very small might be worth keeping for clean configuration. */
+
+struct ifmap
+ {
+ unsigned long int mem_start;
+ unsigned long int mem_end;
+ unsigned short int base_addr;
+ unsigned char irq;
+ unsigned char dma;
+ unsigned char port;
+ /* 3 bytes spare */
+ };
+
+/* 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 IFHWADDRLEN 6
+# define IFNAMSIZ IF_NAMESIZE
+ union
+ {
+ char ifrn_name[IFNAMSIZ]; /* Interface name, e.g. "en0". */
+ } ifr_ifrn;
+
+ union
+ {
+ struct sockaddr ifru_addr;
+ struct sockaddr ifru_dstaddr;
+ struct sockaddr ifru_broadaddr;
+ struct sockaddr ifru_netmask;
+ struct sockaddr ifru_hwaddr;
+ short int ifru_flags;
+ int ifru_ivalue;
+ int ifru_mtu;
+ struct ifmap ifru_map;
+ char ifru_slave[IFNAMSIZ]; /* Just fits the size */
+ char ifru_newname[IFNAMSIZ];
+ __caddr_t ifru_data;
+ } ifr_ifru;
+ };
+# define ifr_name ifr_ifrn.ifrn_name /* interface name */
+# define ifr_hwaddr ifr_ifru.ifru_hwaddr /* MAC address */
+# define ifr_addr ifr_ifru.ifru_addr /* address */
+# define ifr_dstaddr ifr_ifru.ifru_dstaddr /* other end of p-p lnk */
+# 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 */
+# define ifr_metric ifr_ifru.ifru_ivalue /* metric */
+# define ifr_mtu ifr_ifru.ifru_mtu /* mtu */
+# define ifr_map ifr_ifru.ifru_map /* device map */
+# define ifr_slave ifr_ifru.ifru_slave /* slave device */
+# define ifr_data ifr_ifru.ifru_data /* for use by interface */
+# define ifr_ifindex ifr_ifru.ifru_ivalue /* interface index */
+# define ifr_bandwidth ifr_ifru.ifru_ivalue /* link bandwidth */
+# define ifr_qlen ifr_ifru.ifru_ivalue /* queue length */
+# define ifr_newname ifr_ifru.ifru_newname /* New name */
+# define _IOT_ifreq _IOT(_IOTS(char),IFNAMSIZ,_IOTS(char),16,0,0)
+# define _IOT_ifreq_short _IOT(_IOTS(char),IFNAMSIZ,_IOTS(short),1,0,0)
+# define _IOT_ifreq_int _IOT(_IOTS(char),IFNAMSIZ,_IOTS(int),1,0,0)
+
+
+/* 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. */
+# define _IOT_ifconf _IOT(_IOTS(struct ifconf),1,0,0,0,0) /* not right */
+#endif /* Misc. */
+
+__BEGIN_DECLS
+
+/* Convert an interface name to an index, and vice versa. */
+extern unsigned int if_nametoindex (const char *__ifname) __THROW;
+extern char *if_indextoname (unsigned int __ifindex, char *__ifname) __THROW;
+
+/* Return a list of all interfaces and their indices. */
+extern struct if_nameindex *if_nameindex (void) __THROW;
+
+/* Free the data returned from if_nameindex. */
+extern void if_freenameindex (struct if_nameindex *__ptr) __THROW;
+
+__END_DECLS
+
+#endif /* net/if.h */