40 lines
789 B
C
40 lines
789 B
C
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#include <string.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#ifdef AF_LINK
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# include <net/if_dl.h>
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#endif
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#ifdef AF_PACKET
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# include <netpacket/packet.h>
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#endif
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#include "sock.h"
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int sock_getifhwaddr(const char *ifname, uint8_t * hwaddr, uint8_t * addrlen)
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{
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struct sockaddr_storage sa;
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uint8_t *src;
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#ifdef AF_PACKET
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if (!sock_getifaddr(ifname,AF_PACKET,0,(struct sockaddr*)&sa))
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return 0;
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*addrlen = ((struct sockaddr_ll*)&sa)->sll_halen;
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src = ((struct sockaddr_ll*)&sa)->sll_addr;
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#endif
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#ifdef AF_LINK
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if (!sock_getifaddr(ifname,AF_LINK,0,(struct sockaddr*)&sa))
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return 0;
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struct sockaddr_dl *sdl = ((struct sockaddr_dl*)&sa);
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*addrlen = sdl->sdl_alen;
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src = ((uint8_t*)sdl->sdl_data)+sdl->sdl_nlen;
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#endif
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memcpy(hwaddr,src,*addrlen);
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return 1;
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}
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