X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Funix.lisp;h=abd35fcbbbcaa1610e05bcacfed27304a4c12940;hb=ba38798a5ca26b90647a1993f348806cb32f2d1b;hp=0978918f97c4fa046b00416309fd5f9776e97c7d;hpb=82653abf5573c22c691e2243b70647ecdaa6aea8;p=sbcl.git

diff --git a/src/code/unix.lisp b/src/code/unix.lisp
index 0978918..abd35fc 100644
--- a/src/code/unix.lisp
+++ b/src/code/unix.lisp
@@ -281,12 +281,23 @@
   ;; 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 provides 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) (,stub,)
+  #!+(or linux openbsd freebsd sunos)
   (or (newcharstar-string (alien-funcall (extern-alien "getcwd"
 						       (function (* char)
 								 (* char)
 								 size-t))
-					 nil 0))
+					 nil 
+					 #!+(or linux openbsd freebsd) 0
+					 #!+sunos 1025))
       (simple-perror "getcwd")))
 
 ;;; Return the Unix current directory as a SIMPLE-STRING terminated
@@ -337,6 +348,14 @@
 					 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.
@@ -836,6 +855,17 @@
 	  (t
 	   (subseq dst 0 dst-len)))))
 
+;;;; 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)
+
+
 ;;;; stuff not yet found in the header files
 ;;;;
 ;;;; Abandon all hope who enters here...