(let ((to-protocol (intern (format nil "ALIEN-TO-~A" name)))
(to-alien (intern (format nil "~A-TO-ALIEN" name))))
`(progn
+ (export ',name :sb-posix)
(defclass ,name ,superclasses
,(loop for slotd in slots
collect (ldiff slotd (member :array-length slotd)))
;;; variable.
(eval-when (:compile-toplevel :load-toplevel)
(setf *c-functions-in-runtime*
- '`(#+netbsd ,@("stat" "lstat" "fstat" "readdir" "opendir"))))
+ '`(#+netbsd ,@("stat" "lstat" "fstat" "readdir" "opendir"))))
;;; filesystem access
(define-call "lchown" int minusp (pathname filename)
(owner uid-t) (group gid-t))
(define-call "link" int minusp (oldpath filename) (newpath filename))
+ (define-call "lockf" int minusp (fd file-descriptor) (cmd int) (len off-t))
(define-call "mkfifo" int minusp (pathname filename) (mode mode-t))
(define-call "symlink" int minusp (oldpath filename) (newpath filename))
(define-call "sync" void never-fails)
(define-call "setpgid" int minusp (pid pid-t) (pgid pid-t))
(define-call "setpgrp" int minusp))
-;;(define-call "readlink" int minusp (path filename) (buf (* t)) (len int))
+(defmacro with-growing-c-string ((buffer size) &body body)
+ (sb-int:with-unique-names (c-string-block)
+ `(block ,c-string-block
+ (let (,buffer)
+ (flet ((,buffer (&optional (size-incl-null))
+ (when size-incl-null
+ (setf (sb-sys:sap-ref-8 (sb-alien:alien-sap ,buffer) size-incl-null)
+ 0))
+ (return-from ,c-string-block
+ (sb-alien::c-string-to-string
+ (sb-alien:alien-sap ,buffer)
+ (sb-impl::default-external-format)
+ 'character))))
+ (loop for ,size = 128 then (* 2 ,size)
+ do (unwind-protect
+ (progn
+ (setf ,buffer (make-alien c-string ,size))
+ ,@body)
+ (when ,buffer
+ (free-alien ,buffer)))))))))
+
+#-win32
+(progn
+ (export 'readlink :sb-posix)
+ (defun readlink (pathspec)
+ "Returns the resolved target of a symbolic link as a string."
+ (flet ((%readlink (path buf length)
+ (alien-funcall
+ (extern-alien "readlink" (function int c-string (* t) int))
+ path buf length)))
+ (with-growing-c-string (buf size)
+ (let ((count (%readlink (filename pathspec) buf size)))
+ (cond ((minusp count)
+ (syscall-error))
+ ((< 0 count size)
+ (buf count))))))))
+
+(progn
+ (export 'getcwd :sb-posix)
+ (defun getcwd ()
+ "Returns the process's current working directory as a string."
+ (flet ((%getcwd (buffer size)
+ (alien-funcall
+ (extern-alien #-win32 "getcwd"
+ #+win32 "_getcwd" (function c-string (* t) int))
+ buffer size)))
+ (with-growing-c-string (buf size)
+ (let ((result (%getcwd buf size)))
+ (cond (result
+ (buf))
+ ((/= (get-errno) sb-posix:erange)
+ (syscall-error))))))))
#-win32
(progn
(defun wait (&optional statusptr)
(declare (type (or null (simple-array (signed-byte 32) (1))) statusptr))
(let* ((ptr (or statusptr (make-array 1 :element-type '(signed-byte 32))))
- (pid (alien-funcall
- (extern-alien "wait" (function pid-t (* int)))
- (sb-sys:vector-sap ptr))))
+ (pid (sb-sys:with-pinned-objects (ptr)
+ (alien-funcall
+ (extern-alien "wait" (function pid-t (* int)))
+ (sb-sys:vector-sap ptr)))))
(if (minusp pid)
(syscall-error)
(values pid (aref ptr 0))))))
(type (sb-alien:alien int) options)
(type (or null (simple-array (signed-byte 32) (1))) statusptr))
(let* ((ptr (or statusptr (make-array 1 :element-type '(signed-byte 32))))
- (pid (alien-funcall
- (extern-alien "waitpid" (function pid-t
- pid-t (* int) int))
- pid (sb-sys:vector-sap ptr) options)))
+ (pid (sb-sys:with-pinned-objects (ptr)
+ (alien-funcall
+ (extern-alien "waitpid" (function pid-t
+ pid-t (* int) int))
+ pid (sb-sys:vector-sap ptr) options))))
(if (minusp pid)
(syscall-error)
(values pid (aref ptr 0)))))
(export (defun getpagesize () 4096))
;;; passwd database
+;; The docstrings are copied from the descriptions in SUSv3,
+;; where present.
#-win32
(define-protocol-class passwd alien-passwd ()
- ((name :initarg :name :accessor passwd-name)
- (passwd :initarg :passwd :accessor passwd-passwd)
- (uid :initarg :uid :accessor passwd-uid)
- (gid :initarg :gid :accessor passwd-gid)
- (gecos :initarg :gecos :accessor passwd-gecos)
- (dir :initarg :dir :accessor passwd-dir)
- (shell :initarg :shell :accessor passwd-shell)))
+ ((name :initarg :name :accessor passwd-name
+ :documentation "User's login name.")
+ ;; Note: SUSv3 doesn't require this member.
+ (passwd :initarg :passwd :accessor passwd-passwd
+ :documentation "The account's encrypted password.")
+ (uid :initarg :uid :accessor passwd-uid
+ :documentation "Numerical user ID.")
+ (gid :initarg :gid :accessor passwd-gid
+ :documentation "Numerical group ID.")
+ ;; Note: SUSv3 doesn't require this member.
+ (gecos :initarg :gecos :accessor passwd-gecos
+ :documentation "User's name or comment field.")
+ (dir :initarg :dir :accessor passwd-dir
+ :documentation "Initial working directory.")
+ (shell :initarg :shell :accessor passwd-shell
+ :documentation "Program to use as shell."))
+ (:documentation "Instances of this class represent entries in
+ the system's user database."))
(defmacro define-pw-call (name arg type)
#-win32
(define-pw-call "getpwnam" login-name (function (* alien-passwd) c-string))
(define-pw-call "getpwuid" uid (function (* alien-passwd) uid-t))
+;;; group database
+#-win32
+(define-protocol-class group alien-group ()
+ ((name :initarg :name :accessor group-name)
+ (passwd :initarg :passwd :accessor group-passwd)
+ (gid :initarg :gid :accessor group-gid)))
+
+(defmacro define-gr-call (name arg type)
+ #-win32
+ ;; FIXME: this isn't the documented way of doing this, surely?
+ (let ((lisp-name (intern (string-upcase name) :sb-posix)))
+ `(progn
+ (export ',lisp-name :sb-posix)
+ (declaim (inline ,lisp-name))
+ (defun ,lisp-name (,arg)
+ (let ((r (alien-funcall (extern-alien ,name ,type) ,arg)))
+ (if (null r)
+ r
+ (alien-to-group r)))))))
+
+(define-gr-call "getgrnam" login-name (function (* alien-group) c-string))
+(define-gr-call "getgrgid" gid (function (* alien-group) gid-t))
+
+
+#-win32
+(define-protocol-class timeval alien-timeval ()
+ ((sec :initarg :tv-sec :accessor timeval-sec
+ :documentation "Seconds.")
+ (usec :initarg :tv-usec :accessor timeval-usec
+ :documentation "Microseconds."))
+ (:documentation "Instances of this class represent time values."))
+
(define-protocol-class stat alien-stat ()
- ((mode :initarg :mode :accessor stat-mode)
- (ino :initarg :ino :accessor stat-ino)
- (dev :initarg :dev :accessor stat-dev)
- (nlink :initarg :nlink :accessor stat-nlink)
- (uid :initarg :uid :accessor stat-uid)
- (gid :initarg :gid :accessor stat-gid)
- (size :initarg :size :accessor stat-size)
- (atime :initarg :atime :accessor stat-atime)
- (mtime :initarg :mtime :accessor stat-mtime)
- (ctime :initarg :ctime :accessor stat-ctime)))
+ ((mode :initarg :mode :reader stat-mode
+ :documentation "Mode of file.")
+ (ino :initarg :ino :reader stat-ino
+ :documentation "File serial number.")
+ (dev :initarg :dev :reader stat-dev
+ :documentation "Device ID of device containing file.")
+ (nlink :initarg :nlink :reader stat-nlink
+ :documentation "Number of hard links to the file.")
+ (uid :initarg :uid :reader stat-uid
+ :documentation "User ID of file.")
+ (gid :initarg :gid :reader stat-gid
+ :documentation "Group ID of file.")
+ (size :initarg :size :reader stat-size
+ :documentation "For regular files, the file size in
+ bytes. For symbolic links, the length
+ in bytes of the filename contained in
+ the symbolic link.")
+ (atime :initarg :atime :reader stat-atime
+ :documentation "Time of last access.")
+ (mtime :initarg :mtime :reader stat-mtime
+ :documentation "Time of last data modification.")
+ (ctime :initarg :ctime :reader stat-ctime
+ :documentation "Time of last status change"))
+ (:documentation "Instances of this class represent Posix file
+ metadata."))
(defmacro define-stat-call (name arg designator-fun type)
;; FIXME: this isn't the documented way of doing this, surely?
(export ',lisp-name :sb-posix)
(declaim (inline ,lisp-name))
(defun ,lisp-name (,arg &optional stat)
- (declare (type (or null (sb-alien:alien (* alien-stat))) stat))
+ (declare (type (or null stat) stat))
(with-alien-stat a-stat ()
(let ((r (alien-funcall
(extern-alien ,(real-c-name (list name :options :largefile)) ,type)
(declare (type (or null (simple-array (signed-byte 32) (2))) filedes2))
(unless filedes2
(setq filedes2 (make-array 2 :element-type '(signed-byte 32))))
- (let ((r (alien-funcall
- ;; FIXME: (* INT)? (ARRAY INT 2) would be better
- (extern-alien "pipe" (function int (* int)))
- (sb-sys:vector-sap filedes2))))
+ (let ((r (sb-sys:with-pinned-objects (filedes2)
+ (alien-funcall
+ ;; FIXME: (* INT)? (ARRAY INT 2) would be better
+ (extern-alien "pipe" (function int (* int)))
+ (sb-sys:vector-sap filedes2)))))
(when (minusp r)
(syscall-error)))
(values (aref filedes2 0) (aref filedes2 1))))
#-win32
(define-protocol-class termios alien-termios ()
- ((iflag :initarg :iflag :accessor sb-posix:termios-iflag)
- (oflag :initarg :oflag :accessor sb-posix:termios-oflag)
- (cflag :initarg :cflag :accessor sb-posix:termios-cflag)
- (lflag :initarg :lflag :accessor sb-posix:termios-lflag)
- (cc :initarg :cc :accessor sb-posix:termios-cc :array-length nccs)))
+ ((iflag :initarg :iflag :accessor sb-posix:termios-iflag
+ :documentation "Input modes.")
+ (oflag :initarg :oflag :accessor sb-posix:termios-oflag
+ :documentation "Output modes.")
+ (cflag :initarg :cflag :accessor sb-posix:termios-cflag
+ :documentation "Control modes.")
+ (lflag :initarg :lflag :accessor sb-posix:termios-lflag
+ :documentation "Local modes.")
+ (cc :initarg :cc :accessor sb-posix:termios-cc :array-length nccs
+ :documentation "Control characters"))
+ (:documentation "Instances of this class represent I/O
+ characteristics of the terminal."))
#-win32
(progn
priority "%s" message)))
(syslog1 priority (apply #'format nil format args))))
(define-call "closelog" void never-fails))
-
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