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explain_realpath_or_die(3) Library Functions Manual explain_realpath_or_die(3)

NAME
       explain_realpath_or_die - return	canonical pathname and report errors

SYNOPSIS
       #include	<libexplain/realpath.h>
       char	*explain_realpath_or_die(const	   char	    *pathname,	  char
       *resolved_pathname);
       char    *explain_realpath_on_error(const	   char	   *pathname,	  char
       *resolved_pathname);

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

       The explain_realpath_on_error function is used to call the  realpath(3)
       system  call.  On  failure  an  explanation  will be printed to stderr,
       obtained	from the explain_realpath(3) function, but  still  returns  to
       the caller.

       pathname
	       The pathname, exactly as	to be passed to	the realpath(3)	system
	       call.

       resolved_pathname
	       The resolved_pathname, exactly as to be	passed	to  the	 real-
	       path(3) system call.

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

       The  explain_realpath_on_error function always returns the value	return
       by the wrapped realpath(3) system call.

EXAMPLE
       The explain_realpath_or_die function is intended	to be used in a	 fash-
       ion similar to the following example:
	      char *result = explain_realpath_or_die(pathname, resolved_pathname);

SEE ALSO
       realpath(3)
	       return the canonicalized	absolute pathname

       explain_realpath(3)
	       explain realpath(3) errors

       exit(2) terminate the calling process

COPYRIGHT
       libexplain version 1.3
       Copyright (C) 2011 Peter	Miller

						    explain_realpath_or_die(3)

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

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