개요

• 솔라나라에 설명된 어플리케이션에 대해 맨 페이지를 찾아 출력한다.
• MAN 페이지에 대한 설명은 윈디하나의 솔라나라: MAN 페이지을 참고하자.
• svcadm(1M)을 검색하려면 섹션에서 1M 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.

ethers(3c)

Standard C Library Functions                                        ethers(3C)



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

SYNOPSIS
       #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  addresses  to
       their ASCII representations or their corresponding host names, and vice
       versa.


       The function ether_ntoa() converts a 48 bit Ethernet address 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  each
       x is a hexadecimal number between 0 and ff.


       The function ether_aton() converts an ASCII string in the standard rep‐
       resentation back to a 48 bit Ethernet  address;  the  function  returns
       NULL if the string cannot be scanned successfully.


       The function ether_ntohost() maps an Ethernet address (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 address; the function modifies the Ethernet address 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 nsswitch.conf(5) configuration.


       The  function  ether_line() scans a line, pointed to by l, and sets the
       hostname and the Ethernet address, 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(5).

USAGE
       Few systems other than boot servers have other machines listed in their
       ethers file, making it unlikely that host names  will  be  able  to  be
       retrieved  for  a  given Ethernet address. Most systems instead rely on
       arp(4P) to map between Ethernet addresses and  IP  addresses  on  their
       local network.

FILES
       /etc/ethers    Ethernet address to hostname database


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       tab()  box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
       TRIBUTE VALUE _ Interface StabilityCommitted _ MT-LevelMT-Safe


SEE ALSO
       arp(4P), ethers(5), nsswitch.conf(5), attributes(7)

HISTORY
       These functions have been present since the initial release of Solaris.



Oracle Solaris 11.4               2 Feb 2021                        ethers(3C)