don't allow process to attach to itself

[unix-history] / usr / src / sys / kern / subr_rmap.c.sav

diff --git a/usr/src/sys/kern/subr_rmap.c.sav b/usr/src/sys/kern/subr_rmap.c.sav
index 1bfb8d1..a98514d 100644 (file)
--- a/usr/src/sys/kern/subr_rmap.c.sav
+++ b/usr/src/sys/kern/subr_rmap.c.sav
@@ -1,9 +1,9 @@
 /*
 /*

- * Copyright (c) 1982 Regents of the University of California.
+ * Copyright (c) 1982, 1986 Regents of the University of California.

  * All rights reserved.  The Berkeley software License Agreement
  * specifies the terms and conditions for redistribution.
  *
  * All rights reserved.  The Berkeley software License Agreement
  * specifies the terms and conditions for redistribution.
  *

- *     @(#)subr_rmap.c.sav     6.3 (Berkeley) %G%
+ *     @(#)subr_rmap.c.sav     7.2 (Berkeley) %G%

  */
 
 #include "param.h"
  */
 
 #include "param.h"


@@ -326,7 +326,7 @@ rmget(mp, size, addr)
                         */
                        for (bp2=bp; bp2->m_size; bp2++)
                                ;
                         */
                        for (bp2=bp; bp2->m_size; bp2++)
                                ;

-                       if (bp2 == mp->m_limit)
+                       if (bp2 + 1 >= mp->m_limit)

                                return (0);
                        while (bp2 > bp) {
                                (bp2+1)->m_addr = bp2->m_addr;
                                return (0);
                        while (bp2 > bp) {
                                (bp2+1)->m_addr = bp2->m_addr;