X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Funix.lisp;h=b1193bf7fec735e4260ac7ec50590293d4797e7d;hb=6c4d4d984b1af6b2a73568cec3ab9c8795cff2da;hp=ec2c6387dc5ece99d06c08bcebab2c093e0e9d4f;hpb=21bb73db9c3f333ead8a848f863b957a6db5a5c9;p=sbcl.git

diff --git a/src/code/unix.lisp b/src/code/unix.lisp
index ec2c638..b1193bf 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 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
@@ -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.
@@ -386,8 +405,9 @@
 
 ;;; FIXME: All we seem to need is the RUSAGE_SELF version of this.
 ;;;
-;;; Like getrusage(2), but return only the system and user time,
-;;; and return the seconds and microseconds as separate values.
+;;; This is like getrusage(2), except it returns only the system and
+;;; user time, and returns the seconds and microseconds as separate
+;;; values.
 #!-sb-fluid (declaim (inline unix-fast-getrusage))
 (defun unix-fast-getrusage (who)
   (declare (values (member t)
@@ -621,9 +641,9 @@
 	    (tm-gmtoff long) ;  Seconds east of UTC.
 	    (tm-zone c-string))) ; Timezone abbreviation.
 
-(define-alien-routine get-timezone sb!c-call:void
-  (when sb!c-call:long :in)
-  (minutes-west sb!c-call:int :out)
+(define-alien-routine get-timezone sb!alien:void
+  (when sb!alien:long :in)
+  (minutes-west sb!alien:int :out)
   (daylight-savings-p sb!alien:boolean :out))
 
 (defun unix-get-minutes-west (secs)
@@ -835,6 +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...