X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=contrib%2Fsb-posix%2Finterface.lisp;h=aca0e7dad451fc23f4b28144a2f9dc9bf2a9e9cd;hb=5e2b057871cf47c795c75106899f5fb05dc3397e;hp=bf9498e80105cff796b8a89757884a498ba1e1e0;hpb=14a1a090731b8fa3632a6e4b51deee8cbc8f59c9;p=sbcl.git

diff --git a/contrib/sb-posix/interface.lisp b/contrib/sb-posix/interface.lisp
index bf9498e..aca0e7d 100644
--- a/contrib/sb-posix/interface.lisp
+++ b/contrib/sb-posix/interface.lisp
@@ -219,10 +219,8 @@
 
 ;;; mmap, msync
 (define-call "mmap" sb-sys:system-area-pointer
-  ;; KLUDGE: #XFFFFFFFF is (void *)-1, which is the charming return
-  ;; value of mmap on failure.  Except on 64 bit systems ...
   (lambda (res)
-    (= (sb-sys:sap-int res) #-alpha #XFFFFFFFF #+alpha #xffffffffffffffff))
+    (= (sb-sys:sap-int res) #.(1- (expt 2 sb-vm::n-machine-word-bits))))
   (addr sap-or-nil) (length unsigned) (prot unsigned)
   (flags unsigned) (fd file-descriptor) (offset sb-posix::off-t))
 
@@ -328,3 +326,15 @@
 	(syscall-error))
       (setf termios (alien-to-termios a-termios termios))))
   termios)
+
+;;; environment
+
+(export 'sb-posix::getenv :sb-posix)
+(defun sb-posix::getenv (name)
+  (let ((r (alien-funcall
+	    (extern-alien "getenv" (function (* char) c-string))
+	    name)))
+    (declare (type (alien (* char)) r))
+    (unless (null-alien r)
+      (cast r c-string))))
+(define-call "putenv" int minusp (string c-string))