source: azure_iot_hub/trunk/musl-1.1.18/include/net/if.h@ 389

#ifndef _NET_IF_H
#define _NET_IF_H

#ifdef __cplusplus
extern "C" {
#endif

#include <features.h>

#define IF_NAMESIZE 16

struct if_nameindex {
        unsigned int if_index;
        char *if_name;
};

unsigned int if_nametoindex (const char *);
char *if_indextoname (unsigned int, char *);
struct if_nameindex *if_nameindex (void);
void if_freenameindex (struct if_nameindex *);




#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)

#include <sys/socket.h>

#define IFF_UP  0x1
#define IFF_BROADCAST 0x2
#define IFF_DEBUG 0x4
#define IFF_LOOPBACK 0x8
#define IFF_POINTOPOINT 0x10
#define IFF_NOTRAILERS 0x20
#define IFF_RUNNING 0x40
#define IFF_NOARP 0x80
#define IFF_PROMISC 0x100
#define IFF_ALLMULTI 0x200
#define IFF_MASTER 0x400
#define IFF_SLAVE 0x800
#define IFF_MULTICAST 0x1000
#define IFF_PORTSEL 0x2000
#define IFF_AUTOMEDIA 0x4000
#define IFF_DYNAMIC 0x8000
#define IFF_LOWER_UP 0x10000
#define IFF_DORMANT 0x20000
#define IFF_ECHO 0x40000
#define IFF_VOLATILE (IFF_LOOPBACK|IFF_POINTOPOINT|IFF_BROADCAST| \
        IFF_ECHO|IFF_MASTER|IFF_SLAVE|IFF_RUNNING|IFF_LOWER_UP|IFF_DORMANT)

struct ifaddr {
        struct sockaddr ifa_addr;
        union {
                struct sockaddr ifu_broadaddr;
                struct sockaddr ifu_dstaddr;
        } ifa_ifu;
        struct iface *ifa_ifp;
        struct ifaddr *ifa_next;
};

#define ifa_broadaddr   ifa_ifu.ifu_broadaddr
#define ifa_dstaddr     ifa_ifu.ifu_dstaddr

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;
};

#define IFHWADDRLEN     6
#define IFNAMSIZ        IF_NAMESIZE

struct ifreq {
        union {
                char ifrn_name[IFNAMSIZ];
        } 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];
                char ifru_newname[IFNAMSIZ];
                char *ifru_data;
        } ifr_ifru;
};

#define ifr_name        ifr_ifrn.ifrn_name
#define ifr_hwaddr      ifr_ifru.ifru_hwaddr
#define ifr_addr        ifr_ifru.ifru_addr
#define ifr_dstaddr     ifr_ifru.ifru_dstaddr
#define ifr_broadaddr   ifr_ifru.ifru_broadaddr
#define ifr_netmask     ifr_ifru.ifru_netmask
#define ifr_flags       ifr_ifru.ifru_flags
#define ifr_metric      ifr_ifru.ifru_ivalue
#define ifr_mtu         ifr_ifru.ifru_mtu
#define ifr_map         ifr_ifru.ifru_map
#define ifr_slave       ifr_ifru.ifru_slave
#define ifr_data        ifr_ifru.ifru_data
#define ifr_ifindex     ifr_ifru.ifru_ivalue
#define ifr_bandwidth   ifr_ifru.ifru_ivalue
#define ifr_qlen        ifr_ifru.ifru_ivalue
#define ifr_newname     ifr_ifru.ifru_newname
#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)

struct ifconf {
        int ifc_len;            
        union {
                char *ifcu_buf;
                struct ifreq *ifcu_req;
        } ifc_ifcu;
};

#define ifc_buf         ifc_ifcu.ifcu_buf
#define ifc_req         ifc_ifcu.ifcu_req
#define _IOT_ifconf _IOT(_IOTS(struct ifconf),1,0,0,0,0)

#endif

#ifdef __cplusplus
}
#endif

#endif