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explain_getgrent_or_die(3) Library Functions Manual explain_getgrent_or_die(3)

NAME
       explain_getgrent_or_die - get group file	entry and report errors

SYNOPSIS
       #include	<libexplain/getgrent.h>
       struct group *explain_getgrent_or_die(void);
       struct group *explain_getgrent_on_error(void);

DESCRIPTION
       The  explain_getgrent_or_die  function  is used to call the getgrent(3)
       system call. On failure an explanation will be printed to  stderr,  ob-
       tained from the explain_getgrent(3) function, and then the process ter-
       minates by calling exit(EXIT_FAILURE).

       The explain_getgrent_on_error function is used to call the  getgrent(3)
       system  call.  On failure an explanation	will be	printed	to stderr, ob-
       tained from the explain_getgrent(3) function, but still returns to  the
       caller.

RETURN VALUE
       The  explain_getgrent_or_die function only returns on success, see get-
       grent(3)	for more information. On failure, prints  an  explanation  and
       exits, it does not return.

       The  explain_getgrent_on_error function always returns the value	return
       by the wrapped getgrent(3) system call.

EXAMPLE
       The explain_getgrent_or_die function is intended	to be used in a	 fash-
       ion similar to the following example:
	      struct group *result = explain_getgrent_or_die();

SEE ALSO
       getgrent(3)
	       get group file entry

       explain_getgrent(3)
	       explain getgrent(3) errors

       exit(2) terminate the calling process

COPYRIGHT
       libexplain version 1.3
       Copyright (C) 2013 Peter	Miller

						    explain_getgrent_or_die(3)

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

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