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explain_gethostname_or_die(Library Functions Manuexplain_gethostname_or_die(3)

NAME
       explain_gethostname_or_die - get/set hostname and report	errors

SYNOPSIS
       #include	<libexplain/gethostname.h>
       void explain_gethostname_or_die(char *data, size_t data_size);
       intexplain_gethostname_on_error(char *data, size_t data_size);

DESCRIPTION
       The  explain_gethostname_or_die	function  is used to call the gethost-
       name(2) system call. On failure	an  explanation	 will  be  printed  to
       stderr, obtained	from the explain_gethostname(3)	function, and then the
       process terminates by calling exit(EXIT_FAILURE).

       The explain_gethostname_on_error	function is used to call the  gethost-
       name(2)	system	call.  On  failure  an	explanation will be printed to
       stderr, obtained	from the explain_gethostname(3)	 function,  but	 still
       returns to the caller.

       data    The  data, exactly as to	be passed to the gethostname(2)	system
	       call.

       data_size
	       The data_size, exactly as to be passed  to  the	gethostname(2)
	       system call.

RETURN VALUE
       The  explain_gethostname_or_die	function  only returns on success, see
       gethostname(2) for more information. On failure,	prints an  explanation
       and exits, it does not return.

       The  explain_gethostname_on_error function always returns the value re-
       turn by the wrapped gethostname(2) system call.

EXAMPLE
       The explain_gethostname_or_die function is intended to  be  used	 in  a
       fashion similar to the following	example:
	      explain_gethostname_or_die(data, data_size);

SEE ALSO
       gethostname(2)
	       get/set hostname

       explain_gethostname(3)
	       explain gethostname(2) errors

       exit(2) terminate the calling process

COPYRIGHT
       libexplain version 1.3
       Copyright (C) 2009 Peter	Miller

						 explain_gethostname_or_die(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | EXAMPLE | SEE ALSO | COPYRIGHT

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