From: Chris Hanson <org/chris-hanson/cph>
Date: Mon, 23 Oct 1995 06:16:20 +0000 (+0000)
Subject: Change the DRIVE-TYPE primitive to return mount-point information for
X-Git-Tag: 20090517-FFI~5881
X-Git-Url: https://birchwood-abbey.net/git?a=commitdiff_plain;h=f155072e292750b43808a4fd58b6f4dd57f712c9;p=mit-scheme.git

Change the DRIVE-TYPE primitive to return mount-point information for
NFS drives.  This information will be used by the runtime system to
disable end-of-line translation for unix file systems.
---

diff --git a/v7/src/microcode/os2fs.c b/v7/src/microcode/os2fs.c
index 2ea6f0db8..1c333c770 100644
--- a/v7/src/microcode/os2fs.c
+++ b/v7/src/microcode/os2fs.c
@@ -1,6 +1,6 @@
 /* -*-C-*-
 
-$Id: os2fs.c,v 1.5 1995/02/07 23:53:05 cph Exp $
+$Id: os2fs.c,v 1.6 1995/10/23 06:16:20 cph Exp $
 
 Copyright (c) 1994-95 Massachusetts Institute of Technology
 
@@ -159,11 +159,22 @@ OS2_drive_type (char drive_letter)
   (name [2]) = '\0';
   STD_API_CALL
     (dos_query_fs_attach, (name, 0, FSAIL_QUERYNAME, buffer, (& size)));
-  return
-    ((((buffer -> iType) == FSAT_LOCALDRV)
+  if (((buffer -> iType) == FSAT_LOCALDRV)
       || ((buffer -> iType) == FSAT_REMOTEDRV))
-     ? ((buffer -> szName) + (buffer -> cbName) + 1)
-     : 0);
+    {
+      char * fsdname = ((buffer -> szName) + (buffer -> cbName) + 1);
+      if ((buffer -> iType) == FSAT_REMOTEDRV)
+	/* This bit of magic causes the "attach data" to be appended
+	   to the driver name, with a colon separator.  In the case of
+	   an NFS drive, the "attach data" is the mount information,
+	   e.g. "martigny:/zu".  This information is valuable, because
+	   it can be used to make crude inferences about the file
+	   system on the remote machine.  */
+	(fsdname [buffer -> cbFSDName]) = ':';
+      return (fsdname);
+    }
+  else
+    return (0);
 }
 
 const char *