X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Funix.lisp;h=d5ac4836b72c5d6c813d181c199d687ee7fc4913;hb=bb3994fcc9a556d1a26d35f6ff9386d01030821d;hp=ae5875f2a2743875f721cb274f884d983eb63fa9;hpb=800666c9dd66dd953c648b98fdcb340d68510175;p=sbcl.git

diff --git a/src/code/unix.lisp b/src/code/unix.lisp
index ae5875f..d5ac483 100644
--- a/src/code/unix.lisp
+++ b/src/code/unix.lisp
@@ -111,7 +111,7 @@ SYSCALL-FORM. Repeat evaluation of SYSCALL-FORM if it is interrupted."
 (define-alien-routine ("getenv" posix-getenv) c-string
   "Return the \"value\" part of the environment string \"name=value\" which
 corresponds to NAME, or NIL if there is none."
-  (name c-string))
+  (name (c-string :not-null t)))
 
 ;;; from stdio.h
 
@@ -120,7 +120,9 @@ corresponds to NAME, or NIL if there is none."
 #!-win32
 (defun unix-rename (name1 name2)
   (declare (type unix-pathname name1 name2))
-  (void-syscall ("rename" c-string c-string) name1 name2))
+  (void-syscall ("rename" (c-string :not-null t)
+                          (c-string :not-null t))
+                name1 name2))
 
 ;;; from sys/types.h and gnu/types.h
 
@@ -446,11 +448,18 @@ corresponds to NAME, or NIL if there is none."
 ;;; Return the namestring of the home directory, being careful to
 ;;; include a trailing #\/
 #!-win32
-(defun uid-homedir (uid)
-  (or (newcharstar-string (alien-funcall (extern-alien "uid_homedir"
-                                                       (function (* char) int))
-                                         uid))
-      (error "failed to resolve home directory for Unix uid=~S" uid)))
+(progn
+  (defun uid-homedir (uid)
+    (or (newcharstar-string (alien-funcall (extern-alien "uid_homedir"
+                                                         (function (* char) int))
+                                           uid))
+        (error "failed to resolve home directory for Unix uid=~S" uid)))
+
+  (defun user-homedir (uid)
+    (or (newcharstar-string (alien-funcall (extern-alien "user_homedir"
+                                                         (function (* char) c-string))
+                                           uid))
+        (error "failed to resolve home directory for Unix uid=~S" uid))))
 
 ;;; Invoke readlink(2) on the file name specified by PATH. Return
 ;;; (VALUES LINKSTRING NIL) on success, or (VALUES NIL ERRNO) on