* pf.c (S_socket_create): Only accept S_IFCHR, S_IFSOCK and

S_IFIFO as `magic' protocols.

1 files changed, 13 insertions, 6 deletions

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)
     {