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explain_openat_or_die(3)   Library Functions Manual   explain_openat_or_die(3)

NAME
       explain_openat_or_die - open a file relative to a dir fd	and report er-
       rors

SYNOPSIS
       #include	<libexplain/openat.h>
       int explain_openat_or_die(int fildes, const char	*pathname, int	flags,
       mode_t mode);
       int  explain_openat_on_error(int	 fildes,  const	 char  *pathname,  int
       flags, mode_t mode);

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

       The explain_openat_on_error function is used to call the	openat(2) sys-
       tem call. On failure an explanation will	be printed to stderr, obtained
       from the	explain_openat(3) function, but	still returns to the caller.

       fildes  The  fildes,  exactly  as  to be	passed to the openat(2)	system
	       call.

       pathname
	       The pathname, exactly as	to be passed to	the  openat(2)	system
	       call.

       flags   The  flags,  exactly  as	 to  be	passed to the openat(2)	system
	       call.

       mode    The mode, exactly as to be passed to the	openat(2) system call.

RETURN VALUE
       The explain_openat_or_die function only returns on  success,  see  ope-
       nat(2)  for more	information. On	failure, prints	an explanation and ex-
       its, it does not	return.

       The explain_openat_on_error function always returns the value return by
       the wrapped openat(2) system call.

EXAMPLE
       The  explain_openat_or_die function is intended to be used in a fashion
       similar to the following	example:
	      int result = explain_openat_or_die(fildes, pathname, flags, mode);

SEE ALSO
       openat(2)
	       open a file relative to a directory file	descriptor

       explain_openat(3)
	       explain openat(2) errors

       exit(2) terminate the calling process

COPYRIGHT
       libexplain version 1.3
       Copyright (C) 2013 Peter	Miller

						      explain_openat_or_die(3)

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

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