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GETHOSTNAME(3)		 BSD Library Functions Manual		GETHOSTNAME(3)

NAME
     gethostname, sethostname -- get/set name of current host

LIBRARY
     Standard C	Library	(libc, -lc)

SYNOPSIS
     #include <unistd.h>

     int
     gethostname(char *name, int namelen);

     int
     sethostname(const char *name, int namelen);

DESCRIPTION
     The gethostname() function	returns	the standard host name for the current
     processor,	as previously set by sethostname().  The namelen argument
     specifies the size	of the name array.  The	returned name is null-termi-
     nated unless insufficient space is	provided.

     The sethostname() function	sets the name of the host machine to be	name,
     which has length namelen.	This call is restricted	to the super-user and
     is	normally used only when	the system is bootstrapped.

RETURN VALUES
     Upon successful completion, the value 0 is	returned; otherwise the
     value -1 is returned and the global variable errno	is set to indicate the
     error.

ERRORS
     The following errors may be returned by these calls:

     [EFAULT]		The name or namelen argument gave an invalid address.

     [EPERM]		The caller tried to set	the hostname and was not the
			super-user.

SEE ALSO
     gethostid(3), sysctl(3)

BUGS
     Host names	are limited to MAXHOSTNAMELEN (from <sys/param.h>) characters,
     currently 256.  This includes the trailing	NUL.

HISTORY
     The gethostname() function	appeared in 4.2BSD.

BSD				 June 4, 1993				   BSD

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO | BUGS | HISTORY

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