;; behavior, automatically allocating memory when a null buffer
;; pointer is used. On a system which doesn't support that
;; extension, it'll have to be rewritten somehow.
- #!-(or linux openbsd freebsd) (,stub,)
+ ;;
+ ;; SunOS and OSF/1 provide almost as useful an extension: if given a null
+ ;; buffer pointer, it will automatically allocate size space. The
+ ;; KLUDGE in this solution arises because we have just read off
+ ;; PATH_MAX+1 from the Solaris header files and stuck it in here as
+ ;; a constant. Going the grovel_headers route doesn't seem to be
+ ;; helpful, either, as Solaris doesn't export PATH_MAX from
+ ;; unistd.h.
+ #!-(or linux openbsd freebsd sunos osf1) (,stub,)
+ #!+(or linux openbsd freebsd sunos osf1)
(or (newcharstar-string (alien-funcall (extern-alien "getcwd"
(function (* char)
(* char)
size-t))
- nil 0))
+ nil
+ #!+(or linux openbsd freebsd) 0
+ #!+(or sunos osf1) 1025))
(simple-perror "getcwd")))
;;; Return the Unix current directory as a SIMPLE-STRING terminated
uid))
(error "found no match for Unix uid=~S" uid)))
+;;; Return the namestring of the home directory, being careful to
+;;; include a trailing #\/
+(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)))
+
;;; Invoke readlink(2) on the file name specified by PATH. Return
;;; (VALUES LINKSTRING NIL) on success, or (VALUES NIL ERRNO) on
;;; failure.
(t
(subseq dst 0 dst-len)))))
\f
+;;;; A magic constant for wait3().
+;;;;
+;;;; FIXME: This used to be defined in run-program.lisp as
+;;;; (defconstant wait-wstopped #-svr4 #o177 #+svr4 wait-wuntraced)
+;;;; According to some of the man pages, the #o177 is part of the API
+;;;; for wait3(); that said, under SunOS there is a WSTOPPED thing in
+;;;; the headers that may or may not be the same thing. To be
+;;;; investigated. -- CSR, 2002-03-25
+(defconstant wstopped #o177)
+
+\f
;;;; stuff not yet found in the header files
;;;;
;;;; Abandon all hope who enters here...