adding pointer protection to 'G' was too heavyweight. Since malloc guard

should be generally usable, split this out into option 'P'. ok deraadt

1 files changed, 6 insertions, 3 deletions

diff --git a/src/lib/libc/stdlib/malloc.3 b/src/lib/libc/stdlib/malloc.3
index df62e7d3a5..2b0f5632a9 100644
--- a/src/lib/libc/stdlib/malloc.3
+++ b/src/lib/libc/stdlib/malloc.3
@@ -30,7 +30,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"     $OpenBSD: malloc.3,v 1.38 2005/05/24 16:48:35 tedu Exp $
+.\"     $OpenBSD: malloc.3,v 1.39 2005/06/07 04:42:42 tedu Exp $
 .\"
 .Dd August 27, 1996
 .Dt MALLOC 3
@@ -204,8 +204,6 @@ Enable guard pages and chunk randomization.
 Each page size or larger allocation is followed by a guard page that will
 cause a segmentation fault upon any access.
 Smaller than page size chunks are returned in a random order.
-Pointer sized allocations are aligned to the end of a page to catch
-sizeof(ptr) errors where sizeof(*ptr) is meant.
 .Pp
 .It Cm H
 .Dq Hint .
@@ -223,6 +221,11 @@ Currently junk is bytes of 0xd0; this is pronounced
 Do not output warning messages when encountering possible corruption
 or bad pointers.
 .Pp
+.It Cm P
+.Dq Pointer Protection .
+Pointer sized allocations are aligned to the end of a page to catch
+sizeof(ptr) errors where sizeof(*ptr) is meant.
+.Pp
 .It Cm R
 .Dq realloc .
 Always reallocate when