(define-call* "unlink" int minusp (pathname filename))
(define-call #-netbsd "opendir" #+netbsd "_opendir"
(* t) null-alien (pathname filename))
+#+inode64
+(define-call ("readdir" :c-name "readdir$INODE64" :options :largefile)
+ (* dirent)
+ ;; readdir() has the worst error convention in the world. It's just
+ ;; too painful to support. (return is NULL _and_ errno "unchanged"
+ ;; is not an error, it's EOF).
+ not
+ (dir (* t)))
+#-inode64
(define-call (#-netbsd "readdir" #+netbsd "_readdir" :options :largefile)
(* dirent)
;; readdir() has the worst error convention in the world. It's just
;; uid, gid
(define-call "geteuid" uid-t never-fails) ; "always successful", it says
- (define-call "getresuid" uid-t never-fails)
+#-sunos (define-call "getresuid" uid-t never-fails)
(define-call "getuid" uid-t never-fails)
(define-call "seteuid" int minusp (uid uid-t))
- (define-call "setfsuid" int minusp (uid uid-t))
+#-sunos (define-call "setfsuid" int minusp (uid uid-t))
(define-call "setreuid" int minusp (ruid uid-t) (euid uid-t))
- (define-call "setresuid" int minusp (ruid uid-t) (euid uid-t) (suid uid-t))
+#-sunos (define-call "setresuid" int minusp (ruid uid-t) (euid uid-t) (suid uid-t))
(define-call "setuid" int minusp (uid uid-t))
(define-call "getegid" gid-t never-fails)
(define-call "getgid" gid-t never-fails)
- (define-call "getresgid" gid-t never-fails)
+#-sunos (define-call "getresgid" gid-t never-fails)
(define-call "setegid" int minusp (gid gid-t))
- (define-call "setfsgid" int minusp (gid gid-t))
+#-sunos (define-call "setfsgid" int minusp (gid gid-t))
(define-call "setgid" int minusp (gid gid-t))
(define-call "setregid" int minusp (rgid gid-t) (egid gid-t))
- (define-call "setresgid" int minusp (rgid gid-t) (egid gid-t) (sgid gid-t))
+#-sunos (define-call "setresgid" int minusp (rgid gid-t) (egid gid-t) (sgid gid-t))
;; processes, signals
(define-call "alarm" int never-fails (seconds unsigned))
+ ;; FIXME this is a lie, of course this can fail, but there's no
+ ;; error handling here yet!
#+mach-exception-handler
- (progn
- ;; FIXME this is a lie, of course this can fail, but there's no
- ;; error handling here yet!
- (define-call "setup_mach_exceptions" void never-fails)
- (define-call ("posix_fork" :c-name "fork") pid-t minusp)
- (defun fork ()
- (tagbody
- (sb-thread::with-all-threads-lock
- (when (cdr sb-thread::*all-threads*)
- (go :error))
- (let ((pid (posix-fork)))
- (when (= pid 0)
- (setup-mach-exceptions))
- (return-from fork pid)))
- :error
- (error "Cannot fork with multiple threads running.")))
- (export 'fork :sb-posix))
-
- #-mach-exception-handler
- (define-call "fork" pid-t minusp)
+ (define-call "setup_mach_exceptions" void never-fails)
+ (define-call ("posix_fork" :c-name "fork") pid-t minusp)
+ (defun fork ()
+ "Forks the current process, returning 0 in the new process and the PID of
+the child process in the parent. Forking while multiple threads are running is
+not supported."
+ (tagbody
+ (sb-thread::with-all-threads-lock
+ (when (cdr sb-thread::*all-threads*)
+ (go :error))
+ (let ((pid (posix-fork)))
+ #+mach-exception-handler
+ (when (= pid 0)
+ (setup-mach-exceptions))
+ (return-from fork pid)))
+ :error
+ (error "Cannot fork with multiple threads running.")))
+ (export 'fork :sb-posix)
(define-call "getpgid" pid-t minusp (pid pid-t))
(define-call "getppid" pid-t never-fails)
"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))
+ (extern-alien "readlink" (function int (c-string :not-null t) (* t) int))
path buf length)))
(with-growing-c-string (buf size)
(let ((count (%readlink (filename pathspec) buf size)))
nil
(,conv r)))))))
-(define-obj-call "getpwnam" login-name (function (* alien-passwd) c-string) alien-to-passwd)
-(define-obj-call "getpwuid" uid (function (* alien-passwd) uid-t) alien-to-passwd)
-(define-obj-call "getgrnam" login-name (function (* alien-group) c-string) alien-to-group)
-(define-obj-call "getgrgid" gid (function (* alien-group) gid-t) alien-to-group)
+(define-obj-call "getpwnam" login-name (function (* alien-passwd) (c-string :not-null t))
+ alien-to-passwd)
+(define-obj-call "getpwuid" uid (function (* alien-passwd) uid-t)
+ alien-to-passwd)
+(define-obj-call "getgrnam" login-name (function (* alien-group) (c-string :not-null t))
+ alien-to-group)
+(define-obj-call "getgrgid" gid (function (* alien-group) gid-t)
+ alien-to-group)
#-win32
(defmacro define-stat-call (name arg designator-fun type)
;; FIXME: this isn't the documented way of doing this, surely?
- (let ((lisp-name (lisp-for-c-symbol name)))
+ (let ((lisp-name (lisp-for-c-symbol name))
+ (real-name #+inode64 (format nil "~A$INODE64" name)
+ #-inode64 name))
`(progn
(export ',lisp-name :sb-posix)
(declaim (inline ,lisp-name))
(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)
+ (extern-alien ,(real-c-name (list real-name :options :largefile)) ,type)
(,designator-fun ,arg)
a-stat)))
(when (minusp r)
(define-stat-call #-win32 "stat" #+win32 "_stat"
pathname filename
- (function int c-string (* alien-stat)))
+ (function int (c-string :not-null t) (* alien-stat)))
#-win32
(define-stat-call "lstat"
pathname filename
- (function int c-string (* alien-stat)))
+ (function int (c-string :not-null t) (* alien-stat)))
;;; No symbolic links on Windows, so use stat
#+win32
(progn
result)))
(export 'utime :sb-posix)
(defun utime (filename &optional access-time modification-time)
- (let ((fun (extern-alien "utime" (function int c-string
+ (let ((fun (extern-alien "utime" (function int (c-string :not-null t)
(* alien-utimbuf))))
(name (filename filename)))
(if (not (and access-time modification-time))
(if (minusp value)
(syscall-error)
value)))
- (let ((fun (extern-alien "utimes" (function int c-string
+ (let ((fun (extern-alien "utimes" (function int (c-string :not-null t)
(* (array alien-timeval 2)))))
(name (filename filename)))
(if (not (and access-time modification-time))
;;; environment
-(export 'getenv :sb-posix)
+(eval-when (:compile-toplevel :load-toplevel)
+ ;; Do this at compile-time as Win32 code below refers to it as
+ ;; sb-posix:getenv.
+ (export 'getenv :sb-posix))
(defun getenv (name)
(let ((r (alien-funcall
- (extern-alien "getenv" (function (* char) c-string))
+ (extern-alien "getenv" (function (* char) (c-string :not-null t)))
name)))
(declare (type (alien (* char)) r))
(unless (null-alien r)
(cast r c-string))))
-(define-call "putenv" int minusp (string c-string))
+#-win32
+(progn
+ (define-call "setenv" int minusp
+ (name (c-string :not-null t))
+ (value (c-string :not-null t))
+ (overwrite int))
+ (define-call "unsetenv" int minusp (name (c-string :not-null t)))
+ (export 'putenv :sb-posix)
+ (defun putenv (string)
+ (declare (string string))
+ ;; We don't want to call actual putenv: the string passed to putenv ends
+ ;; up in environ, and we any string we allocate GC might move.
+ ;;
+ ;; This makes our wrapper nonconformant if you squit hard enough, but
+ ;; users who care about that should really be calling putenv() directly in
+ ;; order to be able to manage memory sanely.
+ (let ((p (position #\= string))
+ (n (length string)))
+ (if p
+ (if (= p n)
+ (unsetenv (subseq string 0 p))
+ (setenv (subseq string 0 p) (subseq string (1+ p)) 1))
+ (error "Invalid argument to putenv: ~S" string)))))
+#+win32
+(progn
+ ;; Windows doesn't define a POSIX setenv, but happily their _putenv is sane.
+ (define-call* "putenv" int minusp (string (c-string :not-null t)))
+ (export 'setenv :sb-posix)
+ (defun setenv (name value overwrite)
+ (declare (string name value))
+ (if (and (zerop overwrite) (sb-posix:getenv name))
+ 0
+ (putenv (concatenate 'string name "=" value))))
+ (export 'unsetenv :sb-posix)
+ (defun unsetenv (name)
+ (declare (string name))
+ (putenv (concatenate 'string name "="))))
;;; syslog
#-win32
(export 'closelog :sb-posix)
(defun openlog (ident options &optional (facility log-user))
(alien-funcall (extern-alien
- "openlog" (function void c-string int int))
+ "openlog" (function void (c-string :not-null t) int int))
ident options facility))
(defun syslog (priority format &rest args)
"Send a message to the syslog facility, with severity level
than C's printf) with format string FORMAT and arguments ARGS."
(flet ((syslog1 (priority message)
(alien-funcall (extern-alien
- "syslog" (function void int c-string c-string))
+ "syslog" (function void int
+ (c-string :not-null t)
+ (c-string :not-null t)))
priority "%s" message)))
(syslog1 priority (apply #'format nil format args))))
(define-call "closelog" void never-fails))
projects / sbcl.git / blobdiff