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- Log ----------------------------------------------------------------- commit a71198af3e574a22d6698870bd6f5755449c39cd Author: Raymond Toy toy.raymond@gmail.com Date: Sun Nov 16 20:20:23 2014 -0800

Fix indentation.

diff --git a/src/code/unix.lisp b/src/code/unix.lisp index b7548d6..e314960 100644 --- a/src/code/unix.lisp +++ b/src/code/unix.lisp @@ -946,9 +946,9 @@ (int-syscall ("ioctl" int unsigned-int (* char)) fd cmd arg))

(defun unix-tcgetattr (fd termios) - _N"Get terminal attributes." - (declare (type unix-fd fd)) - (void-syscall ("tcgetattr" int (* (struct termios))) fd termios)) + _N"Get terminal attributes." + (declare (type unix-fd fd)) + (void-syscall ("tcgetattr" int (* (struct termios))) fd termios))

(defun unix-tcsetattr (fd opt termios) _N"Set terminal attributes."

commit 836d21bfe205b864201cc224144dde09c8fe1b43 Author: Raymond Toy toy.raymond@gmail.com Date: Sun Nov 16 20:20:04 2014 -0800

Add more unix functions, for motif and hemlock.

diff --git a/src/code/exports.lisp b/src/code/exports.lisp index e5221ee..3c2e492 100644 --- a/src/code/exports.lisp +++ b/src/code/exports.lisp @@ -283,6 +283,13 @@ "UNIX-MUNMAP" "UNIX-MSYNC"

+ ;; Motif + "UNIX-GETUIO" + + ;; Hemlock + "TERMIOS" + "UNIX-TCGETATTR" + "UNIX-TCSETATTR" ))

(defpackage "FORMAT") diff --git a/src/code/unix.lisp b/src/code/unix.lisp index 1d5965f..b7548d6 100644 --- a/src/code/unix.lisp +++ b/src/code/unix.lisp @@ -945,6 +945,20 @@ (type (unsigned-byte 32) cmd)) (int-syscall ("ioctl" int unsigned-int (* char)) fd cmd arg))

+(defun unix-tcgetattr (fd termios) + _N"Get terminal attributes." + (declare (type unix-fd fd)) + (void-syscall ("tcgetattr" int (* (struct termios))) fd termios)) + +(defun unix-tcsetattr (fd opt termios) + _N"Set terminal attributes." + (declare (type unix-fd fd)) + (void-syscall ("tcsetattr" int int (* (struct termios))) fd opt termios)) + +(def-alien-routine ("getuid" unix-getuid) int + _N"Unix-getuid returns the real user-id associated with the + current process.") + ;;; Unix-getpagesize returns the number of bytes in the system page.

(defun unix-getpagesize () @@ -971,6 +985,53 @@ (declare (type (signed-byte 32) code)) (void-syscall ("exit" int) code))

+;;; From sys/termios.h + +;;; NOTE: There is both a termio (SYSV) and termios (POSIX) +;;; structure with similar but incompatible definitions. It may be that +;;; the non-BSD variant of termios below is really a termio but I (pw) +;;; can't verify. The BSD variant uses the Posix termios def. Some systems +;;; (Ultrix and OSF1) seem to support both if used independently. +;;; The 17f version of this seems a bit confused wrt the conditionals. +;;; Please check these defs for your system. + +;;; TSM: from what I can tell looking at the 17f definition, my guess is that it +;;; was originally a termio for sunos (nonsolaris) (because it had the c-line +;;; member for sunos only), and then was mutated into the termios definition for +;;; later systems. The definition here is definitely not an IRIX termio because +;;; it doesn't have c-line. In any case, the functions tcgetattr, etc., +;;; definitely take a termios, and termios seems to be the more standard +;;; standard now, so my suggestion is to just go with termios and forget about +;;; termio. Note the SVID says NCCS not NCC for the constant here, so I've +;;; changed it (which means you need to bootstrap it to avoid a reader error). + +;;; On top of all that, SGI decided to change the termios structure on irix +;;; 6.[34] (but NOT 6.2), left the old routines named the same in the library, +;;; but introduced static functions in termios.h to redirect new calls to the +;;; new library--which means it's important not to #include termios.h before +;;; undefineds.h when building lisp. + +(defconstant +NCCS+ + #+hpux 16 + #+irix 23 + #+(or linux solaris) 19 + #+(or bsd osf1) 20 + #+(and sunos (not svr4)) 17 + _N"Size of control character vector.") + +(def-alien-type nil + (struct termios + (c-iflag unsigned-int) + (c-oflag unsigned-int) + (c-cflag unsigned-int) + (c-lflag unsigned-int) + #+(or linux hpux (and sunos (not svr4))) + (c-reserved #-(or linux (and sunos (not svr4))) unsigned-int + #+(or linux (and sunos (not svr4))) unsigned-char) + (c-cc (array unsigned-char #.+NCCS+)) + #+(or bsd osf1) (c-ispeed unsigned-int) + #+(or bsd osf1) (c-ospeed unsigned-int))) + ;;; From sys/dir.h ;;; ;;; (For Solaris, this is not struct direct, but struct dirent!)

commit fe8f398cd5effe5a17d3e8c2a82f26491fbd2df9 Author: Raymond Toy toy.raymond@gmail.com Date: Sun Nov 16 14:49:08 2014 -0800

Add more unix stuff.

* asdf wants unix-rmdir * Add some missing structs.

diff --git a/src/code/exports.lisp b/src/code/exports.lisp index 71f6389..e5221ee 100644 --- a/src/code/exports.lisp +++ b/src/code/exports.lisp @@ -224,6 +224,7 @@ "UNIX-GETTIMEOFDAY" "UNIX-ISATTY" "UNIX-MKDIR" + "UNIX-RMDIR" "UNIX-UNLINK" "UNIX-SETITIMER" "TIMEZONE" @@ -269,15 +270,19 @@ "SGTTYB" "TCHARS" "UNIX-TTYNAME" + "WINSIZE" + "LTCHARS" + "TIMEVAL" + "CLOSE-DIR" + "OPEN-DIR" + "READ-DIR" + "D-NAMLEN" ;; Simple streams "PROT_READ" "UNIX-MMAP" "UNIX-MUNMAP" "UNIX-MSYNC"

- "CLOSE-DIR" - "OPEN-DIR" - "READ-DIR" ))

(defpackage "FORMAT") diff --git a/src/code/unix.lisp b/src/code/unix.lisp index 15f0b1e..1d5965f 100644 --- a/src/code/unix.lisp +++ b/src/code/unix.lisp @@ -108,6 +108,11 @@ `(multiple-value-bind (,word ,bit) (floor ,offset 32) (logbitp ,bit (deref (slot ,fd-set 'fds-bits) ,word)))))

+(def-alien-type nlink-t + #-(or svr4 netbsd) unsigned-short + #+netbsd unsigned-long + #+svr4 unsigned-long) + (defconstant fd-setsize #-(or hpux alpha linux FreeBSD) 256 #+hpux 2048 #+alpha 4096 #+(or linux FreeBSD) 1024) @@ -117,6 +122,17 @@ (struct fd-set (fds-bits (array #-alpha unsigned-long #+alpha int #.(/ fd-setsize 32)))))

+(def-alien-type nil + (struct timeval + (tv-sec #-linux time-t #+linux int) ; seconds + (tv-usec int))) ; and microseconds + +#+(or linux BSD) +(def-alien-type nil + (struct timespec-t + (ts-sec time-t) + (ts-nsec long))) + ;;; From ioctl.h (def-alien-type nil (struct tchars @@ -128,6 +144,17 @@ #-linux (t-eofc char) ; end-of-file (t-brkc char))) ; input delimiter (like nl)

+;; not found (semi) linux +(def-alien-type nil + (struct ltchars + #+linux (t-werasc char) ; word erase + (t-suspc char) ; stop process signal + (t-dsuspc char) ; delayed stop process signal + (t-rprntc char) ; reprint line + (t-flushc char) ; flush output (toggles) + #-linux (t-werasc char) ; word erase + (t-lnextc char))) ; literal next character + (def-alien-type nil (struct sgttyb #+linux (sg-flags #+mach short #-mach int) ; mode flags @@ -140,6 +167,13 @@ #+linux (t (struct termios)) #+linux (check int)))

+(def-alien-type nil + (struct winsize + (ws-row unsigned-short) ; rows, in characters + (ws-col unsigned-short) ; columns, in characters + (ws-xpixel unsigned-short) ; horizontal size, pixels + (ws-ypixel unsigned-short))) ; veritical size, pixels +  ;;;; System calls.

@@ -672,6 +706,14 @@ (void-syscall ("rename" c-string c-string) (%name->file name1) (%name->file name2)))

+;;; Unix-rmdir accepts a name and removes the associated directory. + +(defun unix-rmdir (name) + _N"Unix-rmdir attempts to remove the directory name. NIL and + an error number is returned if an error occured." + (declare (type unix-pathname name)) + (void-syscall ("rmdir" c-string) (%name->file name))) + ;;; Unix-write accepts a file descriptor, a buffer, an offset, and the ;;; length to write. It attempts to write len bytes to the device ;;; associated with fd from the buffer starting at offset. It returns @@ -929,6 +971,48 @@ (declare (type (signed-byte 32) code)) (void-syscall ("exit" int) code))

+;;; From sys/dir.h +;;; +;;; (For Solaris, this is not struct direct, but struct dirent!) +#-bsd +(def-alien-type nil + (struct direct + #+(and sunos (not svr4)) (d-off long) ; offset of next disk directory entry + (d-ino ino-t); inode number of entry + #+(or linux svr4) (d-off long) + (d-reclen unsigned-short) ; length of this record + #-(or linux svr4) + (d-namlen unsigned-short) ; length of string in d-name + (d-name (array char 256)))) ; name must be no longer than this + +#+(and bsd (not netbsd)) +(def-alien-type nil + (struct direct + (d-fileno unsigned-long) + (d-reclen unsigned-short) + (d-type unsigned-char) + (d-namlen unsigned-char) ; length of string in d-name + (d-name (array char 256)))) ; name must be no longer than this + +#+netbsd +(def-alien-type nil + (struct direct + (d-fileno ino-t) + (d-reclen unsigned-short) + (d-namlen unsigned-short) + (d-type unsigned-char) + (d-name (array char 512)))) + +;;; The 64-bit version of struct dirent. +#+solaris +(def-alien-type nil + (struct dirent64 + (d-ino ino64-t); inode number of entry + (d-off off64-t) ; offset of next disk directory entry + (d-reclen unsigned-short) ; length of this record + (d-name (array char 256)))) ; name must be no longer than this + + #+(and bsd (not netbsd)) (def-alien-type nil (struct stat @@ -950,6 +1034,29 @@ (st-lspare long) (st-qspare (array long 4))))

+(defmacro extract-stat-results (buf) + `(values T + (slot ,buf 'st-dev) + (slot ,buf 'st-ino) + (slot ,buf 'st-mode) + (slot ,buf 'st-nlink) + (slot ,buf 'st-uid) + (slot ,buf 'st-gid) + (slot ,buf 'st-rdev) + (slot ,buf 'st-size) + #-(or svr4 BSD) (slot ,buf 'st-atime) + #+svr4 (slot (slot ,buf 'st-atime) 'tv-sec) + #+BSD (slot (slot ,buf 'st-atime) 'ts-sec) + #-(or svr4 BSD)(slot ,buf 'st-mtime) + #+svr4 (slot (slot ,buf 'st-mtime) 'tv-sec) + #+BSD(slot (slot ,buf 'st-mtime) 'ts-sec) + #-(or svr4 BSD) (slot ,buf 'st-ctime) + #+svr4 (slot (slot ,buf 'st-ctime) 'tv-sec) + #+BSD(slot (slot ,buf 'st-ctime) 'ts-sec) + #+netbsd (slot (slot ,buf 'st-birthtime) 'ts-sec) + (slot ,buf 'st-blksize) + (slot ,buf 'st-blocks))) + (defun unix-stat (name) _N"Unix-stat retrieves information about the specified file returning them in the form of multiple values. @@ -1899,6 +2006,35 @@ (dir "" :type string) (shell "" :type string))

+;; see <pwd.h> +#+solaris +(def-alien-type nil + (struct passwd + (pw-name (* char)) ; user's login name + (pw-passwd (* char)) ; no longer used + (pw-uid uid-t) ; user id + (pw-gid gid-t) ; group id + (pw-age (* char)) ; password age (not used) + (pw-comment (* char)) ; not used + (pw-gecos (* char)) ; typically user's full name + (pw-dir (* char)) ; user's home directory + (pw-shell (* char)))) ; user's login shell + +#+bsd +(def-alien-type nil + (struct passwd + (pw-name (* char)) ; user's login name + (pw-passwd (* char)) ; no longer used + (pw-uid uid-t) ; user id + (pw-gid gid-t) ; group id + (pw-change int) ; password change time + (pw-class (* char)) ; user access class + (pw-gecos (* char)) ; typically user's full name + (pw-dir (* char)) ; user's home directory + (pw-shell (* char)) ; user's login shell + (pw-expire int) ; account expiration + #+(or freebsd darwin) + (pw-fields int))) ; internal  ;;;; Other random routines. (def-alien-routine ("isatty" unix-isatty) boolean @@ -1921,6 +2057,10 @@ (it-interval (struct timeval)) ; timer interval (it-value (struct timeval)))) ; current value

+(defconstant ITIMER-REAL 0) +(defconstant ITIMER-VIRTUAL 1) +(defconstant ITIMER-PROF 2) + (defun unix-setitimer (which int-secs int-usec val-secs val-usec) _N" Unix-setitimer sets the INTERVAL and VALUE slots of one of three system timers (:real :virtual or :profile). A SIGALRM signal

commit fdc539f91d35af5fa1a92e013330a5961a02e92f Author: Raymond Toy toy.raymond@gmail.com Date: Sun Nov 16 09:22:39 2014 -0800

Add more stuff to unix.lisp. Not yet enough to compile cmucl.

diff --git a/src/code/exports.lisp b/src/code/exports.lisp index 1d85aa0..71f6389 100644 --- a/src/code/exports.lisp +++ b/src/code/exports.lisp @@ -212,7 +212,73 @@ "UNIX-GETHOSTNAME" "UNIX-LSEEK" "UNIX-EXIT" - "UNIX-CHDIR")) + "UNIX-CHDIR" + "UNIX-ACCESS" + "UNIX-DUP" + "UNIX-CHMOD" + "UNIX-READLINK" + "UNIX-RENAME" + "UNIX-SELECT" + "UNIX-FAST-GETRUSAGE" + "UNIX-GETRUSAGE" + "UNIX-GETTIMEOFDAY" + "UNIX-ISATTY" + "UNIX-MKDIR" + "UNIX-UNLINK" + "UNIX-SETITIMER" + "TIMEZONE" + "TIMEVAL" + "SIZE-T" + "OFF-T" + "INO-T" + "DEV-T" + "TIME-T" + "FD-SETSIZE" + "FD-ISSET" + "FD-CLR" + "TIME-T" + "USER-INFO-NAME" + "INT64-T" + "MODE-T" + "UNIX-FAST-SELECT" + "UNIX-IOCTL" + "UNIX-OPENPTY" + "UNIX-PIPE" + "UNIX-GETPID" + "UNIX-SOCKET" + "UNIX-CONNECT" + "UNIX-BIND" + "UNIX-LISTEN" + "UNIX-ACCEPT" + "UNIX-GETSOCKOPT" + "UNIX-SETSOCKOPT" + "UNIX-GETPEERNAME" + "UNIX-GETSOCKNAME" + "UNIX_RECV" + "UNIX-SEND" + "UNIX-RECVFROM" + "UNIX-SENDTO" + "UNIX-SHUTDOWN" + "UNIX-GETHOSTID" + "UNIX-FCNTL" + "UNIX-UID" + "UNIX-GID" + "UNIX-GETPWUID" + "UNIX-MPROTECT" + "GET-UNIX-ERROR-MSG" + "SGTTYB" + "TCHARS" + "UNIX-TTYNAME" + ;; Simple streams + "PROT_READ" + "UNIX-MMAP" + "UNIX-MUNMAP" + "UNIX-MSYNC" + + "CLOSE-DIR" + "OPEN-DIR" + "READ-DIR" + ))

(defpackage "FORMAT")

diff --git a/src/code/unix.lisp b/src/code/unix.lisp index 6f12a1f..15f0b1e 100644 --- a/src/code/unix.lisp +++ b/src/code/unix.lisp @@ -35,8 +35,111 @@ (string-decode ,string *filename-encoding*) ,string)))

+ +;;;; Common machine independent structures. + +(def-alien-type int64-t (signed 64)) + +(def-alien-type ino-t + #+netbsd u-int64-t + #+alpha unsigned-int + #-(or alpha netbsd) unsigned-long) + +(def-alien-type size-t + #-(or linux alpha) long + #+linux unsigned-int + #+alpha unsigned-long) + +(def-alien-type time-t + #-(or bsd linux alpha) unsigned-long + #+linux long + #+(and bsd (not netbsd)) long + #+(and bsd netbsd) int64-t + #+alpha unsigned-int) + +(def-alien-type dev-t + #-(or alpha svr4 bsd linux) short + #+linux unsigned-short + #+netbsd u-int64-t + #+alpha int + #+(and (not linux) (not netbsd) (or bsd svr4)) unsigned-long) + +#-BSD +(progn + (deftype file-offset () '(signed-byte 32)) + (def-alien-type off-t + #-alpha long + #+alpha unsigned-long) ;??? very dubious + (def-alien-type uid-t + #-(or alpha svr4) unsigned-short + #+alpha unsigned-int + #+svr4 long) + (def-alien-type gid-t + #-(or alpha svr4) unsigned-short + #+alpha unsigned-int + #+svr4 long)) + +#+BSD +(progn + (deftype file-offset () '(signed-byte 64)) + (def-alien-type off-t int64-t) + (def-alien-type uid-t unsigned-long) + (def-alien-type gid-t unsigned-long)) + +(def-alien-type mode-t + #-(or alpha svr4) unsigned-short + #+alpha unsigned-int + #+svr4 unsigned-long) + +;; not checked for linux... +(defmacro fd-clr (offset fd-set) + (let ((word (gensym)) + (bit (gensym))) + `(multiple-value-bind (,word ,bit) (floor ,offset 32) + (setf (deref (slot ,fd-set 'fds-bits) ,word) + (logand (deref (slot ,fd-set 'fds-bits) ,word) + (32bit-logical-not + (truly-the (unsigned-byte 32) (ash 1 ,bit)))))))) + +;; not checked for linux... +(defmacro fd-isset (offset fd-set) + (let ((word (gensym)) + (bit (gensym))) + `(multiple-value-bind (,word ,bit) (floor ,offset 32) + (logbitp ,bit (deref (slot ,fd-set 'fds-bits) ,word))))) + +(defconstant fd-setsize + #-(or hpux alpha linux FreeBSD) 256 + #+hpux 2048 #+alpha 4096 #+(or linux FreeBSD) 1024) + +;; not checked for linux... +(def-alien-type nil + (struct fd-set + (fds-bits (array #-alpha unsigned-long #+alpha int #.(/ fd-setsize 32))))) + +;;; From ioctl.h +(def-alien-type nil + (struct tchars + (t-intrc char) ; interrupt + (t-quitc char) ; quit + #+linux (t-eofc char) + (t-startc char) ; start output + (t-stopc char) ; stop output + #-linux (t-eofc char) ; end-of-file + (t-brkc char))) ; input delimiter (like nl) + +(def-alien-type nil + (struct sgttyb + #+linux (sg-flags #+mach short #-mach int) ; mode flags + (sg-ispeed char) ; input speed. + (sg-ospeed char) ; output speed + (sg-erase char) ; erase character + #-linux (sg-kill char) ; kill character + #-linux (sg-flags #+mach short #-mach int) ; mode flags + #+linux (sg-kill char) + #+linux (t (struct termios)) + #+linux (check int)))

-(export '())  ;;;; System calls.

@@ -51,9 +154,162 @@ (defmacro syscall ((name &rest arg-types) success-form &rest args) `(%syscall (,name (,@arg-types) int) ,success-form ,@args))

+;;; Like syscall, but if it fails, signal an error instead of returing error +;;; codes. Should only be used for syscalls that will never really get an +;;; error. +;;; +(defmacro syscall* ((name &rest arg-types) success-form &rest args) + `(let ((result (alien-funcall (extern-alien ,name (function int ,@arg-types)) + ,@args))) + (if (eql -1 result) + (error _"Syscall ~A failed: ~A" ,name (get-unix-error-msg)) + ,success-form))) + (defmacro void-syscall ((name &rest arg-types) &rest args) `(syscall (,name ,@arg-types) (values t 0) ,@args))

+(defmacro int-syscall ((name &rest arg-types) &rest args) + `(syscall (,name ,@arg-types) (values result 0) ,@args)) + +(defmacro off-t-syscall ((name arg-types) &rest args) + `(%syscall (,name ,arg-types off-t) (values result 0) ,@args)) + + +;;; Operations on Unix Directories. + +(export '(open-dir read-dir close-dir)) + +(defstruct (%directory + (:conc-name directory-) + (:constructor make-directory) + (:print-function %print-directory)) + name + (dir-struct (required-argument) :type system-area-pointer)) + +(defun %print-directory (dir stream depth) + (declare (ignore depth)) + (format stream "#<Directory ~S>" (directory-name dir))) + +(defun open-dir (pathname) + (declare (type unix-pathname pathname)) + (when (string= pathname "") + (setf pathname ".")) + (let ((kind (unix-file-kind pathname))) + (case kind + (:directory + (let ((dir-struct + (alien-funcall (extern-alien "opendir" + (function system-area-pointer + c-string)) + (%name->file pathname)))) + (if (zerop (sap-int dir-struct)) + (values nil (unix-errno)) + (make-directory :name pathname :dir-struct dir-struct)))) + ((nil) + (values nil enoent)) + (t + (values nil enotdir))))) + +#-(and bsd (not solaris)) +(defun read-dir (dir) + (declare (type %directory dir)) + (let ((daddr (alien-funcall (extern-alien "readdir" + (function system-area-pointer + system-area-pointer)) + (directory-dir-struct dir)))) + (declare (type system-area-pointer daddr)) + (if (zerop (sap-int daddr)) + nil + (with-alien ((direct (* (struct direct)) daddr)) + #-(or linux svr4) + (let ((nlen (slot direct 'd-namlen)) + (ino (slot direct 'd-ino))) + (declare (type (unsigned-byte 16) nlen)) + (let ((string (make-string nlen))) + #-unicode + (kernel:copy-from-system-area + (alien-sap (addr (slot direct 'd-name))) 0 + string (* vm:vector-data-offset vm:word-bits) + (* nlen vm:byte-bits)) + #+unicode + (let ((sap (alien-sap (addr (slot direct 'd-name))))) + (dotimes (k nlen) + (setf (aref string k) + (code-char (sap-ref-8 sap k))))) + (values (%file->name string) ino))) + #+(or linux svr4) + (values (%file->name (cast (slot direct 'd-name) c-string)) + (slot direct 'd-ino)))))) + +;;; 64-bit readdir for Solaris +#+solaris +(defun read-dir (dir) + (declare (type %directory dir)) + (let ((daddr (alien-funcall (extern-alien "readdir64" + (function system-area-pointer + system-area-pointer)) + (directory-dir-struct dir)))) + (declare (type system-area-pointer daddr)) + (if (zerop (sap-int daddr)) + nil + (with-alien ((direct (* (struct dirent64)) daddr)) + #-(or linux svr4) + (let ((nlen (slot direct 'd-namlen)) + (ino (slot direct 'd-ino))) + (declare (type (unsigned-byte 16) nlen)) + (let ((string (make-string nlen))) + #-unicode + (kernel:copy-from-system-area + (alien-sap (addr (slot direct 'd-name))) 0 + string (* vm:vector-data-offset vm:word-bits) + (* nlen vm:byte-bits)) + #+unicode + (let ((sap (alien-sap (addr (slot direct 'd-name))))) + (dotimes (k nlen) + (setf (aref string k) + (code-char (sap-ref-8 sap k))))) + (values (%file->name string) ino))) + #+(or linux svr4) + (values (%file->name (cast (slot direct 'd-name) c-string)) + (slot direct 'd-ino)))))) + +#+(and bsd (not solaris)) +(defun read-dir (dir) + (declare (type %directory dir)) + (let ((daddr (alien-funcall (extern-alien "readdir" + (function system-area-pointer + system-area-pointer)) + (directory-dir-struct dir)))) + (declare (type system-area-pointer daddr)) + (if (zerop (sap-int daddr)) + nil + (with-alien ((direct (* (struct direct)) daddr)) + (let ((nlen (slot direct 'd-namlen)) + (fino (slot direct 'd-fileno))) + (declare (type (unsigned-byte #+netbsd 16 #-netbsd 8) nlen) + (type (unsigned-byte #+netbsd 64 #-netbsd 32) fino)) + (let ((string (make-string nlen))) + #-unicode + (kernel:copy-from-system-area + (alien-sap (addr (slot direct 'd-name))) 0 + string (* vm:vector-data-offset vm:word-bits) + (* nlen vm:byte-bits)) + #+unicode + (let ((sap (alien-sap (addr (slot direct 'd-name))))) + (dotimes (k nlen) + (setf (aref string k) + (code-char (sap-ref-8 sap k))))) + (values (%file->name string) fino))))))) + + +(defun close-dir (dir) + (declare (type %directory dir)) + (alien-funcall (extern-alien "closedir" + (function void system-area-pointer)) + (directory-dir-struct dir)) + nil) + + ;; Use getcwd instead of getwd. But what should we do if the path ;; won't fit? Try again with a larger size? We don't do that right ;; now. @@ -72,6 +328,30 @@ (sap-int (alien-sap result)))) (%file->name (cast buf c-call:c-string))))))

+;;; Unix-access accepts a path and a mode. It returns two values the +;;; first is T if the file is accessible and NIL otherwise. The second +;;; only has meaning in the second case and is the unix errno value. + +(defconstant r_ok 4 _N"Test for read permission") +(defconstant w_ok 2 _N"Test for write permission") +(defconstant x_ok 1 _N"Test for execute permission") +(defconstant f_ok 0 _N"Test for presence of file") + +(defun unix-access (path mode) + _N"Given a file path (a string) and one of four constant modes, + unix-access returns T if the file is accessible with that + mode and NIL if not. It also returns an errno value with + NIL which determines why the file was not accessible. + + The access modes are: + r_ok Read permission. + w_ok Write permission. + x_ok Execute permission. + f_ok Presence of file." + (declare (type unix-pathname path) + (type (mod 8) mode)) + (void-syscall ("access" c-string int) (%name->file path) mode)) + ;;; Unix-chdir accepts a directory name and makes that the ;;; current working directory.

@@ -81,6 +361,48 @@ (declare (type unix-pathname path)) (void-syscall ("chdir" c-string) (%name->file path)))

+;;; Unix-chmod accepts a path and a mode and changes the mode to the new mode. + +(defconstant setuidexec #o4000 _N"Set user ID on execution") +(defconstant setgidexec #o2000 _N"Set group ID on execution") +(defconstant savetext #o1000 _N"Save text image after execution") +(defconstant readown #o400 _N"Read by owner") +(defconstant writeown #o200 _N"Write by owner") +(defconstant execown #o100 _N"Execute (search directory) by owner") +(defconstant readgrp #o40 _N"Read by group") +(defconstant writegrp #o20 _N"Write by group") +(defconstant execgrp #o10 _N"Execute (search directory) by group") +(defconstant readoth #o4 _N"Read by others") +(defconstant writeoth #o2 _N"Write by others") +(defconstant execoth #o1 _N"Execute (search directory) by others") + +(defun unix-chmod (path mode) + _N"Given a file path string and a constant mode, unix-chmod changes the + permission mode for that file to the one specified. The new mode + can be created by logically OR'ing the following: + + setuidexec Set user ID on execution. + setgidexec Set group ID on execution. + savetext Save text image after execution. + readown Read by owner. + writeown Write by owner. + execown Execute (search directory) by owner. + readgrp Read by group. + writegrp Write by group. + execgrp Execute (search directory) by group. + readoth Read by others. + writeoth Write by others. + execoth Execute (search directory) by others. + + Thus #o444 and (logior unix:readown unix:readgrp unix:readoth) + are equivalent for 'mode. The octal-base is familar to Unix users. + + It returns T on successfully completion; NIL and an error number + otherwise." + (declare (type unix-pathname path) + (type unix-file-mode mode)) + (void-syscall ("chmod" c-string int) (%name->file path) mode)) + ;;; Unix-lseek accepts a file descriptor, an offset, and whence value.

(defconstant l_set 0 _N"set the file pointer") @@ -100,6 +422,26 @@ (type (integer 0 2) whence)) (off-t-syscall ("lseek" (int off-t int)) fd offset whence))

+;;; Unix-mkdir accepts a name and a mode and attempts to create the +;;; corresponding directory with mode mode. + +(defun unix-mkdir (name mode) + _N"Unix-mkdir creates a new directory with the specified name and mode. + (Same as those for unix-chmod.) It returns T upon success, otherwise + NIL and an error number." + (declare (type unix-pathname name) + (type unix-file-mode mode)) + (void-syscall ("mkdir" c-string int) (%name->file name) mode)) + +;;; Unix-unlink accepts a name and deletes the directory entry for that +;;; name and the file if this is the last link. + +(defun unix-unlink (name) + _N"Unix-unlink removes the directory entry for the named file. + NIL and an error code is returned if the call fails." + (declare (type unix-pathname name)) + (void-syscall ("unlink" c-string) (%name->file name))) + ;;; Unix-open accepts a pathname (a simple string), flags, and mode and ;;; attempts to open file with name pathname.

@@ -167,6 +509,97 @@ ;;; and store them into the buffer. It returns the actual number of ;;; bytes read.

+;;; Unix-dup returns a duplicate copy of the existing file-descriptor +;;; passed as an argument. + +(defun unix-dup (fd) + _N"Unix-dup duplicates an existing file descriptor (given as the + argument) and return it. If FD is not a valid file descriptor, NIL + and an error number are returned." + (declare (type unix-fd fd)) + (int-syscall ("dup" int) fd)) + +;;; Unix-fcntl takes a file descriptor, an integer command +;;; number, and optional command arguments. It performs +;;; operations on the associated file and/or returns inform- +;;; ation about the file. + +;;; Operations performed on file descriptors: + +(defconstant F-DUPFD 0 _N"Duplicate a file descriptor") +(defconstant F-GETFD 1 _N"Get file desc. flags") +(defconstant F-SETFD 2 _N"Set file desc. flags") +(defconstant F-GETFL 3 _N"Get file flags") +(defconstant F-SETFL 4 _N"Set file flags") +#-(or linux svr4) +(defconstant F-GETOWN 5 _N"Get owner") +#+svr4 +(defconstant F-GETOWN 23 _N"Get owner") +#+linux +(defconstant F-GETLK 5 _N"Get lock") +#-(or linux svr4) +(defconstant F-SETOWN 6 _N"Set owner") +#+svr4 +(defconstant F-SETOWN 24 _N"Set owner") +#+linux +(defconstant F-SETLK 6 _N"Set lock") +#+linux +(defconstant F-SETLKW 7 _N"Set lock, wait for release") +#+linux +(defconstant F-SETOWN 8 _N"Set owner") + +;;; File flags for F-GETFL and F-SETFL: + +(defconstant FNDELAY #-osf1 #o0004 #+osf1 #o100000 _N"Non-blocking reads") +(defconstant FAPPEND #-linux #o0010 #+linux #o2000 _N"Append on each write") +(defconstant FASYNC #-(or linux svr4) #o0100 #+svr4 #o10000 #+linux #o20000 + _N"Signal pgrp when data ready") +;; doesn't exist in Linux ;-( +#-linux (defconstant FCREAT #-(or hpux svr4) #o1000 #+(or hpux svr4) #o0400 + _N"Create if nonexistant") +#-linux (defconstant FTRUNC #-(or hpux svr4) #o2000 #+(or hpux svr4) #o1000 + _N"Truncate to zero length") +#-linux (defconstant FEXCL #-(or hpux svr4) #o4000 #+(or hpux svr4) #o2000 + _N"Error if already created") + +(defun unix-fcntl (fd cmd arg) + _N"Unix-fcntl manipulates file descriptors according to the + argument CMD which can be one of the following: + + F-DUPFD Duplicate a file descriptor. + F-GETFD Get file descriptor flags. + F-SETFD Set file descriptor flags. + F-GETFL Get file flags. + F-SETFL Set file flags. + F-GETOWN Get owner. + F-SETOWN Set owner. + + The flags that can be specified for F-SETFL are: + + FNDELAY Non-blocking reads. + FAPPEND Append on each write. + FASYNC Signal pgrp when data ready. + FCREAT Create if nonexistant. + FTRUNC Truncate to zero length. + FEXCL Error if already created. + " + (declare (type unix-fd fd) + (type (unsigned-byte 32) cmd) + (type (unsigned-byte 32) arg)) + (int-syscall ("fcntl" int unsigned-int unsigned-int) fd cmd arg)) + +(defun unix-pipe () + _N"Unix-pipe sets up a unix-piping mechanism consisting of + an input pipe and an output pipe. Unix-Pipe returns two + values: if no error occurred the first value is the pipe + to be read from and the second is can be written to. If + an error occurred the first value is NIL and the second + the unix error code." + (with-alien ((fds (array int 2))) + (syscall ("pipe" (* int)) + (values (deref fds 0) (deref fds 1)) + (cast fds (* int))))) + (defun unix-read (fd buf len) _N"Unix-read attempts to read from the file described by fd into the buffer buf until it is full. Len is the length of the buffer. @@ -208,6 +641,37 @@ (setf (sap-ref-8 sap 0) (sap-ref-8 sap 0))))) (int-syscall ("read" int (* char) int) fd buf len))

+(defun unix-readlink (path) + _N"Unix-readlink invokes the readlink system call on the file name + specified by the simple string path. It returns up to two values: + the contents of the symbolic link if the call is successful, or + NIL and the Unix error number." + (declare (type unix-pathname path)) + (with-alien ((buf (array char 1024))) + (syscall ("readlink" c-string (* char) int) + (let ((string (make-string result))) + #-unicode + (kernel:copy-from-system-area + (alien-sap buf) 0 + string (* vm:vector-data-offset vm:word-bits) + (* result vm:byte-bits)) + #+unicode + (let ((sap (alien-sap buf))) + (dotimes (k result) + (setf (aref string k) + (code-char (sap-ref-8 sap k))))) + (%file->name string)) + (%name->file path) (cast buf (* char)) 1024))) + +;;; Unix-rename accepts two files names and renames the first to the second. + +(defun unix-rename (name1 name2) + _N"Unix-rename renames the file with string name1 to the string + name2. NIL and an error code is returned if an error occured." + (declare (type unix-pathname name1 name2)) + (void-syscall ("rename" c-string c-string) + (%name->file name1) (%name->file name2))) + ;;; Unix-write accepts a file descriptor, a buffer, an offset, and the ;;; length to write. It attempts to write len bytes to the device ;;; associated with fd from the buffer starting at offset. It returns @@ -228,6 +692,217 @@ buf)))) (addr (deref ptr offset))) len)) + +;;; Unix-ioctl is used to change parameters of devices in a device +;;; dependent way. + + +(defconstant terminal-speeds + '#(0 50 75 110 134 150 200 300 600 #+hpux 900 1200 1800 2400 #+hpux 3600 + 4800 #+hpux 7200 9600 19200 38400 57600 115200 230400 + #+hpux 460800)) + +;;; from /usr/include/bsd/sgtty.h (linux) + +(defconstant tty-raw #-linux #o40 #+linux 1) +(defconstant tty-crmod #-linux #o20 #+linux 4) +#-(or hpux svr4 bsd linux) (defconstant tty-echo #o10) ;; 8 +(defconstant tty-lcase #-linux #o4 #+linux 2) +#-hpux +(defconstant tty-cbreak #-linux #o2 #+linux 64) +#-(or linux hpux) +(defconstant tty-tandem #o1) + +#+(or hpux svr4 bsd linux) +(progn + (defmacro def-enum (inc cur &rest names) + (flet ((defform (name) + (prog1 (when name `(defconstant ,name ,cur)) + (setf cur (funcall inc cur 1))))) + `(progn ,@(mapcar #'defform names)))) + + ;; Input modes. Linux: /usr/include/asm/termbits.h + (def-enum ash 1 tty-ignbrk tty-brkint tty-ignpar tty-parmrk tty-inpck + tty-istrip tty-inlcr tty-igncr tty-icrnl #-bsd tty-iuclc + tty-ixon #-bsd tty-ixany tty-ixoff #+bsd tty-ixany + #+hpux tty-ienqak #+bsd nil tty-imaxbel) + + ;; output modes + #-bsd (def-enum ash 1 tty-opost tty-olcuc tty-onlcr tty-ocrnl tty-onocr + tty-onlret tty-ofill tty-ofdel) + #+bsd (def-enum ash 1 tty-opost tty-onlcr) + + ;; local modes + #-bsd (def-enum ash 1 tty-isig tty-icanon tty-xcase tty-echo tty-echoe + tty-echok tty-echonl tty-noflsh #+irix tty-iexten + #+(or sunos linux) tty-tostop tty-echoctl tty-echoprt + tty-echoke #+(or sunos svr4) tty-defecho tty-flusho + #+linux nil tty-pendin #+irix tty-tostop + #+(or sunos linux) tty-iexten) + #+bsd (def-enum ash 1 tty-echoke tty-echoe tty-echok tty-echo tty-echonl + tty-echoprt tty-echoctl tty-isig tty-icanon nil + tty-iexten) + #+bsd (defconstant tty-tostop #x00400000) + #+bsd (defconstant tty-flusho #x00800000) + #+bsd (defconstant tty-pendin #x20000000) + #+bsd (defconstant tty-noflsh #x80000000) + #+hpux (defconstant tty-tostop #o10000000000) + #+hpux (defconstant tty-iexten #o20000000000) + + ;; control modes + (def-enum ash #-bsd #o100 #+bsd #x400 #+hpux nil tty-cstopb + tty-cread tty-parenb tty-parodd tty-hupcl tty-clocal + #+svr4 rcv1en #+svr4 xmt1en #+(or hpux svr4) tty-loblk) + + ;; special control characters + #+(or hpux svr4 linux) (def-enum + 0 vintr vquit verase vkill veof + #-linux veol #-linux veol2) + #+bsd (def-enum + 0 veof veol veol2 verase nil vkill nil nil vintr vquit) + #+linux (defconstant veol 11) + #+linux (defconstant veol2 16) + + (defconstant tciflush 0) + (defconstant tcoflush 1) + (defconstant tcioflush 2)) + +#+bsd +(progn + (defconstant vmin 16) + (defconstant vtime 17) + (defconstant vsusp 10) + (defconstant vstart 12) + (defconstant vstop 13) + (defconstant vdsusp 11)) + +#+hpux +(progn + (defconstant vmin 11) + (defconstant vtime 12) + (defconstant vsusp 13) + (defconstant vstart 14) + (defconstant vstop 15) + (defconstant vdsusp 21)) + +#+(or hpux bsd linux) +(progn + (defconstant tcsanow 0) + (defconstant tcsadrain 1) + (defconstant tcsaflush 2)) + +#+(or linux svr4) +(progn + #-linux (defconstant vdsusp 11) + (defconstant vstart 8) + (defconstant vstop 9) + (defconstant vsusp 10) + (defconstant vmin #-linux 4 #+linux 6) + (defconstant vtime 5)) + +#+(or sunos svr4) +(progn + ;; control modes + (defconstant tty-cbaud #o17) + (defconstant tty-csize #o60) + (defconstant tty-cs5 #o0) + (defconstant tty-cs6 #o20) + (defconstant tty-cs7 #o40) + (defconstant tty-cs8 #o60)) + +#+bsd +(progn + ;; control modes + (defconstant tty-csize #x300) + (defconstant tty-cs5 #x000) + (defconstant tty-cs6 #x100) + (defconstant tty-cs7 #x200) + (defconstant tty-cs8 #x300)) + +#+svr4 +(progn + (defconstant tcsanow #x540e) + (defconstant tcsadrain #x540f) + (defconstant tcsaflush #x5410)) + +(eval-when (compile load eval) + +#-(or (and svr4 (not irix)) linux) +(progn + (defconstant iocparm-mask #x7f) ; Freebsd: #x1fff ? + (defconstant ioc_void #x20000000) + (defconstant ioc_out #x40000000) + (defconstant ioc_in #x80000000) + (defconstant ioc_inout (logior ioc_in ioc_out))) + +#-(or linux (and svr4 (not irix))) +(defmacro define-ioctl-command (name dev cmd arg &optional (parm-type :void)) + (let* ((ptype (ecase parm-type + (:void ioc_void) + (:in ioc_in) + (:out ioc_out) + (:inout ioc_inout))) + (code (logior (ash (char-code dev) 8) cmd ptype))) + (when arg + (setf code + `(logior (ash (logand (alien-size ,arg :bytes) + ,iocparm-mask) + 16) + ,code))) + `(eval-when (eval load compile) + (defconstant ,name ,code)))) + +#+(and svr4 (not irix)) +(defmacro define-ioctl-command (name dev cmd arg &optional (parm-type :void)) + (declare (ignore dev arg parm-type)) + `(eval-when (eval load compile) + (defconstant ,name ,(logior (ash (char-code #\t) 8) cmd)))) + +#+linux +(defmacro define-ioctl-command (name dev cmd arg &optional (parm-type :void)) + (declare (ignore arg parm-type)) + `(eval-when (eval load compile) + (defconstant ,name ,(logior (ash (- (char-code dev) #x20) 8) cmd)))) + +) + +;;; TTY ioctl commands. + +(define-ioctl-command TIOCGETP #\t #-linux 8 #+linux #x81 (struct sgttyb) :out) +(define-ioctl-command TIOCSETP #\t #-linux 9 #+linux #x82 (struct sgttyb) :in) +(define-ioctl-command TIOCFLUSH #\t #-linux 16 #+linux #x89 int :in) +(define-ioctl-command TIOCSETC #\t #-linux 17 #+linux #x84 (struct tchars) :in) +(define-ioctl-command TIOCGETC #\t #-linux 18 #+linux #x83 (struct tchars) :out) +(define-ioctl-command TIOCGWINSZ #\t #-hpux 104 #+hpux 107 (struct winsize) + :out) +(define-ioctl-command TIOCSWINSZ #\t #-hpux 103 #+hpux 106 (struct winsize) + :in) + +(define-ioctl-command TIOCNOTTY #\t #-linux 113 #+linux #x22 nil :void) +#-hpux +(progn + (define-ioctl-command TIOCSLTC #\t #-linux 117 #+linux #x84 (struct ltchars) :in) + (define-ioctl-command TIOCGLTC #\t #-linux 116 #+linux #x85 (struct ltchars) :out) + (define-ioctl-command TIOCSPGRP #\t #-svr4 118 #+svr4 21 int :in) + (define-ioctl-command TIOCGPGRP #\t #-svr4 119 #+svr4 20 int :out)) +#+hpux +(progn + (define-ioctl-command TIOCSLTC #\T 23 (struct ltchars) :in) + (define-ioctl-command TIOCGLTC #\T 24 (struct ltchars) :out) + (define-ioctl-command TIOCSPGRP #\T 29 int :in) + (define-ioctl-command TIOCGPGRP #\T 30 int :out) + (define-ioctl-command TIOCSIGSEND #\t 93 nil)) + +;;; File ioctl commands. +(define-ioctl-command FIONREAD #\f #-linux 127 #+linux #x1B int :out) + + +(defun unix-ioctl (fd cmd arg) + _N"Unix-ioctl performs a variety of operations on open i/o + descriptors. See the UNIX Programmer's Manual for more + information." + (declare (type unix-fd fd) + (type (unsigned-byte 32) cmd)) + (int-syscall ("ioctl" int unsigned-int (* char)) fd cmd arg)) + ;;; Unix-getpagesize returns the number of bytes in the system page.

(defun unix-getpagesize () @@ -241,6 +916,10 @@ (cast buf c-string) (cast buf (* char)) 256)))

+(def-alien-routine ("gethostid" unix-gethostid) unsigned-long + _N"Unix-gethostid returns a 32-bit integer which provides unique + identification for the host machine.") + ;;; Unix-exit terminates a program.

(defun unix-exit (&optional (code 0)) @@ -303,6 +982,73 @@ (extract-stat-results buf) fd (addr buf))))

+(def-alien-type nil + (struct rusage + (ru-utime (struct timeval)) ; user time used + (ru-stime (struct timeval)) ; system time used. + (ru-maxrss long) + (ru-ixrss long) ; integral sharded memory size + (ru-idrss long) ; integral unsharded data " + (ru-isrss long) ; integral unsharded stack " + (ru-minflt long) ; page reclaims + (ru-majflt long) ; page faults + (ru-nswap long) ; swaps + (ru-inblock long) ; block input operations + (ru-oublock long) ; block output operations + (ru-msgsnd long) ; messages sent + (ru-msgrcv long) ; messages received + (ru-nsignals long) ; signals received + (ru-nvcsw long) ; voluntary context switches + (ru-nivcsw long))) ; involuntary " + +(defconstant rusage_self 0 _N"The calling process.") +(defconstant rusage_children -1 _N"Terminated child processes.") + +(declaim (inline unix-fast-getrusage)) +(defun unix-fast-getrusage (who) + _N"Like call getrusage, but return only the system and user time, and returns + the seconds and microseconds as separate values." + (declare (values (member t) + (unsigned-byte 31) (mod 1000000) + (unsigned-byte 31) (mod 1000000))) + (with-alien ((usage (struct rusage))) + (syscall* (#-netbsd "getrusage" #+netbsd "__getrusage50" int (* (struct rusage))) + (values t + (slot (slot usage 'ru-utime) 'tv-sec) + (slot (slot usage 'ru-utime) 'tv-usec) + (slot (slot usage 'ru-stime) 'tv-sec) + (slot (slot usage 'ru-stime) 'tv-usec)) + who (addr usage)))) + +(defun unix-getrusage (who) + _N"Unix-getrusage returns information about the resource usage + of the process specified by who. Who can be either the + current process (rusage_self) or all of the terminated + child processes (rusage_children). NIL and an error number + is returned if the call fails." + (with-alien ((usage (struct rusage))) + (syscall (#-netbsd "getrusage" #+netbsd "__getrusage50" int (* (struct rusage))) + (values t + (+ (* (slot (slot usage 'ru-utime) 'tv-sec) 1000000) + (slot (slot usage 'ru-utime) 'tv-usec)) + (+ (* (slot (slot usage 'ru-stime) 'tv-sec) 1000000) + (slot (slot usage 'ru-stime) 'tv-usec)) + (slot usage 'ru-maxrss) + (slot usage 'ru-ixrss) + (slot usage 'ru-idrss) + (slot usage 'ru-isrss) + (slot usage 'ru-minflt) + (slot usage 'ru-majflt) + (slot usage 'ru-nswap) + (slot usage 'ru-inblock) + (slot usage 'ru-oublock) + (slot usage 'ru-msgsnd) + (slot usage 'ru-msgrcv) + (slot usage 'ru-nsignals) + (slot usage 'ru-nvcsw) + (slot usage 'ru-nivcsw)) + who (addr usage)))) + ;;;; Support routines for dealing with unix pathnames.

(defconstant s-ifmt #o0170000) @@ -814,3 +1560,452 @@ (def-alien-routine ("os_set_errno" unix-set-errno) int (newvalue int)) (defun unix-errno () (unix-get-errno))

+;;; GET-UNIX-ERROR-MSG -- public. +;;; +(defun get-unix-error-msg (&optional (error-number (unix-errno))) + _N"Returns a string describing the error number which was returned by a + UNIX system call." + (declare (type integer error-number)) + (if (array-in-bounds-p *unix-errors* error-number) + (svref *unix-errors* error-number) + (format nil _"Unknown error [~d]" error-number))) + + +;;;; Lisp types used by syscalls. + +(deftype unix-pathname () 'simple-string) +(deftype unix-fd () `(integer 0 ,most-positive-fixnum)) + +(deftype unix-file-mode () '(unsigned-byte 32)) +(deftype unix-uid () '(unsigned-byte 32)) +(deftype unix-gid () '(unsigned-byte 32)) + + +;;; UNIX-FAST-SELECT -- public. +;;; +(defmacro unix-fast-select (num-descriptors + read-fds write-fds exception-fds + timeout-secs &optional (timeout-usecs 0)) + _N"Perform the UNIX select(2) system call. + (declare (type (integer 0 #.FD-SETSIZE) num-descriptors) + (type (or (alien (* (struct fd-set))) null) + read-fds write-fds exception-fds) + (type (or null (unsigned-byte 31)) timeout-secs) + (type (unsigned-byte 31) timeout-usecs) + (optimize (speed 3) (safety 0) (inhibit-warnings 3)))" + `(let ((timeout-secs ,timeout-secs)) + (with-alien ((tv (struct timeval))) + (when timeout-secs + (setf (slot tv 'tv-sec) timeout-secs) + (setf (slot tv 'tv-usec) ,timeout-usecs)) + (int-syscall (#-netbsd "select" #+netbsd "__select50" int (* (struct fd-set)) (* (struct fd-set)) + (* (struct fd-set)) (* (struct timeval))) + ,num-descriptors ,read-fds ,write-fds ,exception-fds + (if timeout-secs (alien-sap (addr tv)) (int-sap 0)))))) + +;;; Unix-select accepts sets of file descriptors and waits for an event +;;; to happen on one of them or to time out. + +(defmacro num-to-fd-set (fdset num) + `(if (fixnump ,num) + (progn + (setf (deref (slot ,fdset 'fds-bits) 0) ,num) + ,@(loop for index upfrom 1 below (/ fd-setsize 32) + collect `(setf (deref (slot ,fdset 'fds-bits) ,index) 0))) + (progn + ,@(loop for index upfrom 0 below (/ fd-setsize 32) + collect `(setf (deref (slot ,fdset 'fds-bits) ,index) + (ldb (byte 32 ,(* index 32)) ,num)))))) + +(defmacro fd-set-to-num (nfds fdset) + `(if (<= ,nfds 32) + (deref (slot ,fdset 'fds-bits) 0) + (+ ,@(loop for index upfrom 0 below (/ fd-setsize 32) + collect `(ash (deref (slot ,fdset 'fds-bits) ,index) + ,(* index 32)))))) + +;; not checked for linux... +(defmacro fd-set (offset fd-set) + (let ((word (gensym)) + (bit (gensym))) + `(multiple-value-bind (,word ,bit) (floor ,offset 32) + (setf (deref (slot ,fd-set 'fds-bits) ,word) + (logior (truly-the (unsigned-byte 32) (ash 1 ,bit)) + (deref (slot ,fd-set 'fds-bits) ,word)))))) + +;; not checked for linux... +(defmacro fd-zero (fd-set) + `(progn + ,@(loop for index upfrom 0 below (/ fd-setsize 32) + collect `(setf (deref (slot ,fd-set 'fds-bits) ,index) 0)))) + +(defun unix-select (nfds rdfds wrfds xpfds to-secs &optional (to-usecs 0)) + _N"Unix-select examines the sets of descriptors passed as arguments + to see if they are ready for reading and writing. See the UNIX + Programmers Manual for more information." + (declare (type (integer 0 #.FD-SETSIZE) nfds) + (type unsigned-byte rdfds wrfds xpfds) + (type (or (unsigned-byte 31) null) to-secs) + (type (unsigned-byte 31) to-usecs) + (optimize (speed 3) (safety 0) (inhibit-warnings 3))) + (with-alien ((tv (struct timeval)) + (rdf (struct fd-set)) + (wrf (struct fd-set)) + (xpf (struct fd-set))) + (when to-secs + (setf (slot tv 'tv-sec) to-secs) + (setf (slot tv 'tv-usec) to-usecs)) + (num-to-fd-set rdf rdfds) + (num-to-fd-set wrf wrfds) + (num-to-fd-set xpf xpfds) + (macrolet ((frob (lispvar alienvar) + `(if (zerop ,lispvar) + (int-sap 0) + (alien-sap (addr ,alienvar))))) + (syscall (#-netbsd "select" #+netbsd "__select50" int (* (struct fd-set)) (* (struct fd-set)) + (* (struct fd-set)) (* (struct timeval))) + (values result + (fd-set-to-num nfds rdf) + (fd-set-to-num nfds wrf) + (fd-set-to-num nfds xpf)) + nfds (frob rdfds rdf) (frob wrfds wrf) (frob xpfds xpf) + (if to-secs (alien-sap (addr tv)) (int-sap 0)))))) + +(def-alien-type nil + (struct timeval + (tv-sec #-linux time-t #+linux int) ; seconds + (tv-usec int))) ; and microseconds + +(def-alien-type nil + (struct timezone + (tz-minuteswest int) ; minutes west of Greenwich + (tz-dsttime ; type of dst correction + #-linux (enum nil :none :usa :aust :wet :met :eet :can) + #+linux int))) + +(declaim (inline unix-gettimeofday)) +(defun unix-gettimeofday () + _N"If it works, unix-gettimeofday returns 5 values: T, the seconds and + microseconds of the current time of day, the timezone (in minutes west + of Greenwich), and a daylight-savings flag. If it doesn't work, it + returns NIL and the errno." + (with-alien ((tv (struct timeval)) + #-(or svr4 netbsd) (tz (struct timezone))) + (syscall* (#-netbsd "gettimeofday" + #+netbsd "__gettimeofday50" + (* (struct timeval)) #-svr4 (* (struct timezone))) + (values T + (slot tv 'tv-sec) + (slot tv 'tv-usec) + #-(or svr4 netbsd) (slot tz 'tz-minuteswest) + #+svr4 (unix-get-minutes-west (slot tv 'tv-sec)) + #-(or svr4 netbsd) (slot tz 'tz-dsttime) + #+svr4 (unix-get-timezone (slot tv 'tv-sec)) + ) + (addr tv) + #-(or svr4 netbsd) (addr tz) #+netbsd nil))) + +(def-alien-routine ("getpid" unix-getpid) int + _N"Unix-getpid returns the process-id of the current process.") + + +;;;; Socket support. + +(def-alien-routine ("socket" unix-socket) int + (domain int) + (type int) + (protocol int)) + +(def-alien-routine ("connect" unix-connect) int + (socket int) + (sockaddr (* t)) + (len int)) + +(def-alien-routine ("bind" unix-bind) int + (socket int) + (sockaddr (* t)) + (len int)) + +(def-alien-routine ("listen" unix-listen) int + (socket int) + (backlog int)) + +(def-alien-routine ("accept" unix-accept) int + (socket int) + (sockaddr (* t)) + (len int :in-out)) + +(def-alien-routine ("recv" unix-recv) int + (fd int) + (buffer c-string) + (length int) + (flags int)) + +(def-alien-routine ("send" unix-send) int + (fd int) + (buffer c-string) + (length int) + (flags int)) + +(def-alien-routine ("getpeername" unix-getpeername) int + (socket int) + (sockaddr (* t)) + (len (* unsigned))) + +(def-alien-routine ("getsockname" unix-getsockname) int + (socket int) + (sockaddr (* t)) + (len (* unsigned))) + +(def-alien-routine ("getsockopt" unix-getsockopt) int + (socket int) + (level int) + (optname int) + (optval (* t)) + (optlen unsigned :in-out)) + +(def-alien-routine ("setsockopt" unix-setsockopt) int + (socket int) + (level int) + (optname int) + (optval (* t)) + (optlen unsigned)) + +;; Datagram support + +(defun unix-recvfrom (fd buffer length flags sockaddr len) + (with-alien ((l c-call:int len)) + (values + (alien-funcall (extern-alien "recvfrom" + (function c-call:int + c-call:int + system-area-pointer + c-call:int + c-call:int + (* t) + (* c-call:int))) + fd + (system:vector-sap buffer) + length + flags + sockaddr + (addr l)) + l))) + +#-unicode +(def-alien-routine ("sendto" unix-sendto) int + (fd int) + (buffer c-string) + (length int) + (flags int) + (sockaddr (* t)) + (len int)) + +(defun unix-sendto (fd buffer length flags sockaddr len) + (alien-funcall (extern-alien "sendto" + (function c-call:int + c-call:int + system-area-pointer + c-call:int + c-call:int + (* t) + c-call:int)) + fd + (system:vector-sap buffer) + length + flags + sockaddr + len)) + +(def-alien-routine ("shutdown" unix-shutdown) int + (socket int) + (level int)) + + +;;;; Memory-mapped files + +(defconstant +null+ (sys:int-sap 0)) + +(defconstant prot_read 1) ; Readable +(defconstant prot_write 2) ; Writable +(defconstant prot_exec 4) ; Executable +(defconstant prot_none 0) ; No access + +(defconstant map_shared 1) ; Changes are shared +(defconstant map_private 2) ; Changes are private +(defconstant map_fixed 16) ; Fixed, user-defined address +(defconstant map_noreserve #x40) ; Don't reserve swap space +(defconstant map_anonymous + #+solaris #x100 ; Solaris + #+linux 32 ; Linux + #+bsd #x1000) + +(defconstant ms_async 1) +(defconstant ms_sync 4) +(defconstant ms_invalidate 2) + +;; The return value from mmap that means mmap failed. +(defconstant map_failed (int-sap (1- (ash 1 vm:word-bits)))) + +(defun unix-mmap (addr length prot flags fd offset) + (declare (type (or null system-area-pointer) addr) + (type (unsigned-byte 32) length) + (type (integer 1 7) prot) + (type (unsigned-byte 32) flags) + (type (or null unix-fd) fd) + (type file-offset offset)) + ;; Can't use syscall, because the address that is returned could be + ;; "negative". Hence we explicitly check for mmap returning + ;; MAP_FAILED. + (let ((result + (alien-funcall (extern-alien "mmap" (function system-area-pointer + system-area-pointer + size-t int int int off-t)) + (or addr +null+) length prot flags (or fd -1) offset))) + (if (sap= result map_failed) + (values nil (unix-errno)) + (values result 0)))) + +(defun unix-munmap (addr length) + (declare (type system-area-pointer addr) + (type (unsigned-byte 32) length)) + (syscall ("munmap" system-area-pointer size-t) t addr length)) + +(defun unix-mprotect (addr length prot) + (declare (type system-area-pointer addr) + (type (unsigned-byte 32) length) + (type (integer 1 7) prot)) + (syscall ("mprotect" system-area-pointer size-t int) + t addr length prot)) + +(defun unix-msync (addr length flags) + (declare (type system-area-pointer addr) + (type (unsigned-byte 32) length) + (type (signed-byte 32) flags)) + (syscall ("msync" system-area-pointer size-t int) t addr length flags)) + + +;;;; User and group database structures + +(defstruct user-info + (name "" :type string) + (password "" :type string) + (uid 0 :type unix-uid) + (gid 0 :type unix-gid) + #+solaris (age "" :type string) + #+solaris (comment "" :type string) + #+freebsd (change -1 :type fixnum) + (gecos "" :type string) + (dir "" :type string) + (shell "" :type string)) + + +;;;; Other random routines. +(def-alien-routine ("isatty" unix-isatty) boolean + _N"Accepts a Unix file descriptor and returns T if the device + associated with it is a terminal." + (fd int)) + +(def-alien-routine ("ttyname" unix-ttyname) c-string + (fd int)) + +(def-alien-routine ("openpty" unix-openpty) int + (amaster int :out) + (aslave int :out) + (name c-string) + (termp (* (struct termios))) + (winp (* (struct winsize)))) + +(def-alien-type nil + (struct itimerval + (it-interval (struct timeval)) ; timer interval + (it-value (struct timeval)))) ; current value + +(defun unix-setitimer (which int-secs int-usec val-secs val-usec) + _N" Unix-setitimer sets the INTERVAL and VALUE slots of one of + three system timers (:real :virtual or :profile). A SIGALRM signal + will be delivered VALUE <seconds+microseconds> from now. INTERVAL, + when non-zero, is <seconds+microseconds> to be loaded each time + the timer expires. Setting INTERVAL and VALUE to zero disables + the timer. See the Unix man page for more details. On success, + unix-setitimer returns the old contents of the INTERVAL and VALUE + slots as in unix-getitimer." + (declare (type (member :real :virtual :profile) which) + (type (unsigned-byte 29) int-secs val-secs) + (type (integer 0 (1000000)) int-usec val-usec) + (values t + (unsigned-byte 29) + (mod 1000000) + (unsigned-byte 29) + (mod 1000000))) + (let ((which (ecase which + (:real ITIMER-REAL) + (:virtual ITIMER-VIRTUAL) + (:profile ITIMER-PROF)))) + (with-alien ((itvn (struct itimerval)) + (itvo (struct itimerval))) + (setf (slot (slot itvn 'it-interval) 'tv-sec ) int-secs + (slot (slot itvn 'it-interval) 'tv-usec) int-usec + (slot (slot itvn 'it-value ) 'tv-sec ) val-secs + (slot (slot itvn 'it-value ) 'tv-usec) val-usec) + (syscall* (#-netbsd "setitimer" #+netbsd "__setitimer50" int (* (struct timeval))(* (struct timeval))) + (values T + (slot (slot itvo 'it-interval) 'tv-sec) + (slot (slot itvo 'it-interval) 'tv-usec) + (slot (slot itvo 'it-value) 'tv-sec) + (slot (slot itvo 'it-value) 'tv-usec)) + which (alien-sap (addr itvn))(alien-sap (addr itvo)))))) + + +;;;; User and group database access, POSIX Standard 9.2.2 + +#+solaris +(defun unix-getpwuid (uid) + _N"Return a USER-INFO structure for the user identified by UID, or NIL if not found." + (declare (type unix-uid uid)) + (with-alien ((buf (array c-call:char 1024)) + (user-info (struct passwd))) + (let ((result + (alien-funcall + (extern-alien "getpwuid_r" + (function (* (struct passwd)) + c-call:unsigned-int + (* (struct passwd)) + (* c-call:char) + c-call:unsigned-int)) + uid + (addr user-info) + (cast buf (* c-call:char)) + 1024))) + (when (not (zerop (sap-int (alien-sap result)))) + (make-user-info + :name (string (cast (slot result 'pw-name) c-call:c-string)) + :password (string (cast (slot result 'pw-passwd) c-call:c-string)) + :uid (slot result 'pw-uid) + :gid (slot result 'pw-gid) + :age (string (cast (slot result 'pw-age) c-call:c-string)) + :comment (string (cast (slot result 'pw-comment) c-call:c-string)) + :gecos (string (cast (slot result 'pw-gecos) c-call:c-string)) + :dir (string (cast (slot result 'pw-dir) c-call:c-string)) + :shell (string (cast (slot result 'pw-shell) c-call:c-string))))))) + +#+bsd +(defun unix-getpwuid (uid) + _N"Return a USER-INFO structure for the user identified by UID, or NIL if not found." + (declare (type unix-uid uid)) + (let ((result + (alien-funcall + (extern-alien "getpwuid" + (function (* (struct passwd)) + c-call:unsigned-int)) + uid))) + (when (not (zerop (sap-int (alien-sap result)))) + (make-user-info + :name (string (cast (slot result 'pw-name) c-call:c-string)) + :password (string (cast (slot result 'pw-passwd) c-call:c-string)) + :uid (slot result 'pw-uid) + :gid (slot result 'pw-gid) + :gecos (string (cast (slot result 'pw-gecos) c-call:c-string)) + :dir (string (cast (slot result 'pw-dir) c-call:c-string)) + :shell (string (cast (slot result 'pw-shell) c-call:c-string)))))) +

-----------------------------------------------------------------------

Summary of changes: src/code/exports.lisp | 80 ++- src/code/unix.lisp | 1398 ++++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 1476 insertions(+), 2 deletions(-)

hooks/post-receive