'Rename' Library Function?

[Karl Denninger]

In article <[157]unix at oldcolo.UUCP> dave at oldcolo.UUCP (Dave Hughes) writes:
>WHen I try to compile an indexing program written on a Mac (AIX I think)
>system, which has a 'rename' library function, it bombs on that function,
>returning an 'unresolved external' error on _rename.
>
>It is used - and needed - in the following type of use:
>
>    char oldname[32], finalname[65];                                   
>    sprintf (oldname, "x%dk0", generation_number);                     
>    sprintf (finalname, "%s.k", doc_filename);                         
>    if (rename (oldname, finalname))                                   
>        printf ("Sorry -- error in renaming file %s to %s!\n", oldname,
>                finalname);                                            
>
>I cannot find another 386 Xenix compiler library function which will
>work in its place. Any suggestions?

Sure Dave!

Try this replacement:

int	rename(oname, fname)		/* Returns zero if ok, NZ otherwise */
char	*oname;
char	*nname;
{
	if (link(oname, nname)) {	/* Try to make a link */
		perror("failed");	/* Something is wrong, complain */
		return(1);		/* Failed to make a link */
	}
	return(unlink(oname));		/* Remove old name / return status */
}

Include that somewhere and it should replace your missing function.  Note
that this will not work if the new name (fname) is on a different file system.

(Ps: I noted that your message came from AKCS; glad to see you have the
     linkage working properly! :-))

--
Karl Denninger (karl at ddsw1.MCS.COM, <well-connected>!ddsw1!karl)
Public Access Data Line: [+1 312 566-8911], Voice: [+1 312 566-8910]
Macro Computer Solutions, Inc.		"Quality Solutions at a Fair Price"