ether_aton man page on OpenIndiana

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ethers(3SOCKET)		   Sockets Library Functions	       ethers(3SOCKET)

NAME
       ethers,	  ether_ntoa,	 ether_aton,   ether_ntohost,	ether_hostton,
       ether_line - Ethernet address mapping operations

SYNOPSIS
       cc [ flag ... ] file ... -lsocket  -lnsl	 [ library ... ]
       #include <sys/types.h>
       #include <sys/ethernet.h>

       char *ether_ntoa(const struct ether_addr *e);

       struct ether_addr *ether_aton(const char *s);

       int ether_ntohost(char *hostname, const struct ether_addr *e);

       int ether_hostton(const char *hostname, struct ether_addr *e);

       int ether_line(const char *l, struct ether_addr *e, char *hostname);

DESCRIPTION
       These routines are useful for mapping 48 bit Ethernet numbers to	 their
       ASCII  representations  or  their  corresponding	  host names, and vice
       versa.

       The function ether_ntoa() converts a 48 bit Ethernet number pointed  to
       by   e  to  its standard	 ASCII representation; it returns a pointer to
       the  ASCII string.  The representation is  of  the  form	 x:x:x:	 x:x:x
       where   x  is  a	 hexadecimal  number  between  0 and ff.  The function
       ether_aton() converts an ASCII string in	 the  standard	representation
       back  to	 a  48 bit Ethernet number;  the function returns  NULL if the
       string cannot be scanned successfully.

       The function ether_ntohost() maps an Ethernet number (pointed to by  e)
       to  its associated hostname.  The string pointed to by hostname must be
       long enough to hold the	hostname and a	NULL character.	 The  function
       returns	zero  upon  success and non-zero upon failure.	Inversely, the
       function ether_hostton() maps a hostname string	to  its	 corresponding
       Ethernet	 number; the function modifies the  Ethernet number pointed to
       by e. The function also returns zero upon  success  and	non-zero  upon
       failure.	 In  order  to do the mapping, both these functions may lookup
       one or more of the following sources: the ethers file, and the NIS maps
       ethers.byname and ethers.byaddr. The sources and their lookup order are
       specified in the	 /etc/nsswitch.conf  file.  See	 nsswitch.conf(4)  for
       details.

       The  function  ether_line() scans a line, pointed to by l, and sets the
       hostname and the Ethernet number, pointed to by e. The  string  pointed
       to  by  hostname	 must  be long enough to hold the hostname and a  NULL
       character.  The function returns zero upon success  and	non-zero  upon
       failure.	 The format of the scanned line is described by	 ethers(4).

FILES
       /etc/ethers	     Ethernet address to hostname database or domain

       /etc/nsswitch.conf    configuration file for the name service switch

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌─────────────────────────────┬─────────────────────────────┐
       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE VALUE	   │
       ├─────────────────────────────┼─────────────────────────────┤
       │MT-Level		     │MT-Safe			   │
       └─────────────────────────────┴─────────────────────────────┘

SEE ALSO
       ethers(4), nsswitch.conf(4), attributes(5)

SunOS 5.11			  10 Dec 2009		       ethers(3SOCKET)
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