From b4cc956f8c24c462db7235cde475ca9623e760f2 Mon Sep 17 00:00:00 2001
From: Mark Kettenis <kettenis@gnu.org>
Date: Wed, 9 Aug 2000 21:13:53 +0000
Subject: * pf.c (S_socket_create): Only accept S_IFCHR, S_IFSOCK and S_IFIFO
 as `magic' protocols.

---
 pflocal/pf.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

(limited to 'pflocal/pf.c')

diff --git a/pflocal/pf.c b/pflocal/pf.c
index 1244c600..d72e01b5 100644
--- a/pflocal/pf.c
+++ b/pflocal/pf.c
@@ -42,12 +42,19 @@ S_socket_create (mach_port_t pf,
      the file type of the socket.  The primary application is to make
      sockets that pretend to be a FIFO, for the implementations of
      pipes.  */
-  if (protocol == 0)
-    mode = S_IFSOCK;
-  else if ((protocol & ~S_IFMT) == 0)
-    mode = protocol & S_IFMT;
-  else
-    return EPROTONOSUPPORT;
+  switch (protocol)
+    {
+    case 0:
+      mode = S_IFSOCK;
+      break;
+    case S_IFCHR:
+    case S_IFSOCK:
+    case S_IFIFO:
+      mode = protocol;
+      break;
+    default:
+      return EPROTONOSUPPORT;
+    }
 
   switch (sock_type)
     {
-- 
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