X-Git-Url: http://git.subgeniuskitty.com/pforth/.git/blobdiff_plain/0b1e24898c41afa1f07854c295881b23aa2faea6..HEAD:/fth/file.fth

diff --git a/fth/file.fth b/fth/file.fth
index a2835bf..6d26af3 100644
--- a/fth/file.fth
+++ b/fth/file.fth
@@ -2,14 +2,17 @@
 \
 \ This code is part of pForth.
 \
-\ The pForth software code is dedicated to the public domain,
-\ and any third party may reproduce, distribute and modify
-\ the pForth software code or any derivative works thereof
-\ without any compensation or license.  The pForth software
-\ code is provided on an "as is" basis without any warranty
-\ of any kind, including, without limitation, the implied
-\ warranties of merchantability and fitness for a particular
-\ purpose and their equivalents under the laws of any jurisdiction.
+\ Permission to use, copy, modify, and/or distribute this
+\ software for any purpose with or without fee is hereby granted.
+\
+\ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+\ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+\ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+\ THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
+\ CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+\ FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+\ CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+\ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 private{
 
@@ -143,4 +146,18 @@ create (LINE-TERMINATOR) \n c,
     ENDCASE
 ; immediate
 
+\ We basically try to open the file in read-only mode.  That seems to
+\ be the best that we can do with ANSI C.  If we ever want to do
+\ something more sophisticated, like calling access(2), we must create
+\ a proper primitive.  (OTOH, portable programs can't assume much
+\ about FILE-STATUS and non-portable programs could create a custom
+\ function for access(2).)
+: FILE-STATUS ( c-addr u -- 0 ior )
+    r/o bin open-file           ( fileid ior1 )
+    ?dup
+    IF   nip 0 swap             ( 0 ior1 )
+    ELSE close-file 0 swap      ( 0 ior2 )
+    THEN
+;
+
 privatize