home *** CD-ROM | disk | FTP | other *** search
- /****************************************************************************
- *
- * $Source: /unixb/home/unixlib/source/unixlib37/src/stdio/c/RCS/rename,v $
- * $Date: 1996/05/06 09:01:34 $
- * $Revision: 1.2 $
- * $State: Rel $
- * $Author: unixlib $
- *
- * $Log: rename,v $
- * Revision 1.2 1996/05/06 09:01:34 unixlib
- * Updates to sources made by Nick Burrett, Peter Burwood and Simon Callan.
- * Saved for 3.7a release.
- *
- * Revision 1.1 1996/04/19 21:32:42 simon
- * Initial revision
- *
- ***************************************************************************/
-
- static const char rcs_id[] = "$Id: rename,v 1.2 1996/05/06 09:01:34 unixlib Rel $";
-
- #include <stdio.h>
- #include <ctype.h>
- #include <unistd.h>
-
- __STDIOLIB__
-
- int
- rename (const char *old, const char *new)
- {
- {
- register const char *s1 = old, *s2 = new;
- register int c1, c2;
-
- while (c1 = *s1++, c2 = *s2++)
- {
- if (isupper (c1))
- c1 = _tolower (c1);
- if (isupper (c2))
- c2 = _tolower (c2);
- if (c1 != c2)
- break;
- }
- if (c1 != c2)
- unlink ((char *) new);
- }
-
- if (link ((char *) old, (char *) new))
- return (-1);
-
- return (0);
- }
-