From d00be5ffb0e0c8979e5c7bf499208b44e5651bbd Mon Sep 17 00:00:00 2001
From: Chris Hanson <org/chris-hanson/cph>
Date: Mon, 12 Nov 1990 04:01:05 +0000
Subject: [PATCH] Add new channel types for character and block devices.

---
 v7/src/microcode/osio.h   |  6 ++++--
 v7/src/microcode/uxfile.c | 10 ++++++++--
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/v7/src/microcode/osio.h b/v7/src/microcode/osio.h
index 0ba7a38a1..b9d937618 100644
--- a/v7/src/microcode/osio.h
+++ b/v7/src/microcode/osio.h
@@ -1,6 +1,6 @@
 /* -*-C-*-
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/osio.h,v 1.4 1990/11/08 11:03:44 cph Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/osio.h,v 1.5 1990/11/12 04:00:45 cph Rel $
 
 Copyright (c) 1990 Massachusetts Institute of Technology
 
@@ -48,7 +48,9 @@ enum channel_type
   channel_type_unix_stream_socket,
   channel_type_tcp_stream_socket,
   channel_type_tcp_server_socket,
-  channel_type_directory
+  channel_type_directory,
+  channel_type_character_device,
+  channel_type_block_device
 };
 
 extern size_t OS_channel_table_size;
diff --git a/v7/src/microcode/uxfile.c b/v7/src/microcode/uxfile.c
index 6cf9be8ec..a1056d907 100644
--- a/v7/src/microcode/uxfile.c
+++ b/v7/src/microcode/uxfile.c
@@ -1,6 +1,6 @@
 /* -*-C-*-
 
-$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/uxfile.c,v 1.2 1990/11/08 11:07:33 cph Exp $
+$Header: /Users/cph/tmp/foo/mit-scheme/mit-scheme/v7/src/microcode/uxfile.c,v 1.3 1990/11/12 04:01:05 cph Rel $
 
 Copyright (c) 1990 Massachusetts Institute of Technology
 
@@ -48,9 +48,15 @@ DEFUN (fd_channel_type, (fd), int fd)
     mode_t type = ((stat_buf . st_mode) & S_IFMT);
     return
       ((type == S_IFREG) ? channel_type_file
-       : ((type == S_IFCHR) && (isatty (fd))) ? channel_type_terminal
+       : (type == S_IFCHR)
+       ? ((isatty (fd))
+	  ? channel_type_terminal
+	  : channel_type_character_device)
 #ifdef S_IFIFO
        : (type == S_IFIFO) ? channel_type_fifo
+#endif
+#ifdef S_IFBLK
+       : (type == S_IFBLK) ? channel_type_block_device
 #endif
        : (type == S_IFDIR) ? channel_type_directory
        : channel_type_unknown);
-- 
2.25.1