===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/rcs/rcs.c,v
retrieving revision 1.45
retrieving revision 1.46
diff -c -r1.45 -r1.46
*** src/usr.bin/rcs/rcs.c	2008/01/31 16:36:11	1.45
--- src/usr.bin/rcs/rcs.c	2008/02/02 16:21:38	1.46
***************
*** 1,4 ****
! /*	$OpenBSD: rcs.c,v 1.45 2008/01/31 16:36:11 tobias Exp $	*/
  /*
   * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
   * All rights reserved.
--- 1,4 ----
! /*	$OpenBSD: rcs.c,v 1.46 2008/02/02 16:21:38 xsa Exp $	*/
  /*
   * Copyright (c) 2004 Jean-Francois Brousseau <jfb@openbsd.org>
   * All rights reserved.
***************
*** 1276,1281 ****
--- 1276,1332 ----
  
  	return (rbuf);
  }
+ 
+ void
+ rcs_delta_stats(struct rcs_delta *rdp, int *ladded, int *lremoved)
+ {
+ 	struct rcs_lines *plines;
+ 	struct rcs_line *lp;
+ 	int added, i, lineno, nbln, removed;
+ 	char op, *ep;
+ 	u_char tmp;
+ 
+ 	added = removed = 0;
+ 
+ 	plines = rcs_splitlines(rdp->rd_text, rdp->rd_tlen);
+ 	lp = TAILQ_FIRST(&(plines->l_lines));
+ 
+ 	/* skip first bogus line */
+ 	for (lp = TAILQ_NEXT(lp, l_list); lp != NULL;
+ 		lp = TAILQ_NEXT(lp, l_list)) {
+ 			if (lp->l_len < 2)
+ 				errx(1,
+ 				    "line too short, RCS patch seems broken");
+ 			op = *(lp->l_line);
+ 			/* NUL-terminate line buffer for strtol() safety. */
+ 			tmp = lp->l_line[lp->l_len - 1];
+ 			lp->l_line[lp->l_len - 1] = '\0';
+ 			lineno = (int)strtol((lp->l_line + 1), &ep, 10);
+ 			ep++;
+ 			nbln = (int)strtol(ep, &ep, 10);
+ 			/* Restore the last byte of the buffer */
+ 			lp->l_line[lp->l_len - 1] = tmp;
+ 			if (nbln < 0)
+ 				errx(1, "invalid line number specification "
+ 				    "in RCS patch");
+ 
+ 			if (op == 'a') {
+ 				added += nbln;
+ 				for (i = 0; i < nbln; i++) {
+ 					lp = TAILQ_NEXT(lp, l_list);
+ 					if (lp == NULL)
+ 						errx(1, "truncated RCS patch");
+ 				}
+ 			} else if (op == 'd')
+ 				removed += nbln;
+ 			else
+ 				errx(1, "unknown RCS patch operation '%c'", op);
+ 	}
+ 
+ 	*ladded = added;
+ 	*lremoved = removed;
+ }
+  	 
  
  /*
   * rcs_rev_add()