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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	  *re-
       solved_pathname);
       char  *explain_realpath_on_error(const  char   *pathname,   char	  *re-
       solved_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,  ob-
       tained from the explain_realpath(3) function, and then the process ter-
       minates 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, ob-
       tained 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 ex-
       its, 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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