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Rename lib to library.
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David Brown
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src/library/ulm/ulmSysStat.Mod
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src/library/ulm/ulmSysStat.Mod
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(* Ulm's Oberon Library
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Copyright (C) 1989-1994 by University of Ulm, SAI, D-89069 Ulm, Germany
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----------------------------------------------------------------------------
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Ulm's Oberon Library is free software; you can redistribute it
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and/or modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either version
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2 of the License, or (at your option) any later version.
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Ulm's Oberon Library is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty
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of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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----------------------------------------------------------------------------
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E-mail contact: oberon@mathematik.uni-ulm.de
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----------------------------------------------------------------------------
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$Id: SysStat.om,v 1.3 2000/11/12 13:02:09 borchert Exp $
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----------------------------------------------------------------------------
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$Log: SysStat.om,v $
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Revision 1.3 2000/11/12 13:02:09 borchert
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door file type added
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Revision 1.2 2000/11/12 12:48:07 borchert
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- conversion adapted to Solaris 2.x
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- Lstat added
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Revision 1.1 1994/02/23 08:00:48 borchert
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Initial revision
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----------------------------------------------------------------------------
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AFB 9/89
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----------------------------------------------------------------------------
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*)
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MODULE ulmSysStat;
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(* examine inode: stat(2) and fstat(2) *)
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IMPORT RelatedEvents := ulmRelatedEvents, Sys := ulmSys, SYS := SYSTEM, uSYS := ulmSYSTEM, SysConversions := ulmSysConversions, SysErrors := ulmSysErrors,
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SysTypes := ulmSysTypes;
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CONST
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(* file mode:
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bit 0 = 1<<0 bit 31 = 1<<31
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user group other
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3 1 1111 11
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1 ... 6 5432 109 876 543 210
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+--------+------+-----+-----+-----+-----+
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| unused | type | sst | rwx | rwx | rwx |
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+--------+------+-----+-----+-----+-----+
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*)
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type* = {12..15};
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prot* = {0..8};
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(* file types; example: (stat.mode * type = dir) *)
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reg* = {15}; (* regular *)
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dir* = {14}; (* directory *)
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chr* = {13}; (* character special *)
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fifo* = {12}; (* fifo *)
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blk* = {13..14}; (* block special *)
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symlink* = {13, 15}; (* symbolic link *)
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socket* = {14, 15}; (* socket *)
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(* special *)
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setuid* = 11; (* set user id on execution *)
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setgid* = 10; (* set group id on execution *)
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savetext* = 9; (* save swapped text even after use *)
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(* protection *)
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uread* = 8; (* read permission owner *)
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uwrite* = 7; (* write permission owner *)
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uexec* = 6; (* execute/search permission owner *)
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gread* = 5; (* read permission group *)
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gwrite* = 4; (* write permission group *)
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gexec* = 3; (* execute/search permission group *)
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oread* = 2; (* read permission other *)
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owrite* = 1; (* write permission other *)
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oexec* = 0; (* execute/search permission other *)
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(* example for "r-xr-x---": (read + exec) * (owner + group) *)
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owner* = {uread, uwrite, uexec};
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group* = {gread, gwrite, gexec};
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other* = {oread, owrite, oexec};
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read* = {uread, gread, oread};
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write* = {uwrite, gwrite, owrite};
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exec* = {uexec, gexec, oexec};
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rwx* = prot;
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TYPE
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StatRec* = (* result of stat(2) and fstat(2) *)
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RECORD
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device*: SysTypes.Device; (* ID of device containing
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a directory entry for this file *)
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inode*: SysTypes.Inode; (* inode number *)
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nlinks*: LONGINT(*INTEGER*); (* number of links *)
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mode*: SET; (* file mode; see mknod(2) *)
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uid*: INTEGER; (* user id of the file's owner *)
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gid*: INTEGER; (* group id of the file's group *)
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rdev*: SysTypes.Device; (* ID of device
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this entry is defined only for
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character special or block
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special files
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*)
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size*: SysTypes.Offset; (* file size in bytes *)
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blksize*: LONGINT; (* preferred blocksize *)
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blocks*: LONGINT; (* # of blocks allocated *)
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atime*: SysTypes.Time; (* time of last access *)
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mtime*: SysTypes.Time; (* time of last data modification *)
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ctime*: SysTypes.Time; (* time of last file status change *)
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END;
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(* StatRec* = (* result of stat(2) and fstat(2) *)
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RECORD
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device*: SysTypes.Device; (* ID of device containing
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a directory entry for this file *)
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inode*: SysTypes.Inode; (* inode number *)
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nlinks*: LONGINT; (* number of links *)
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mode*: INTEGER(*SET*); (* file mode; see mknod(2) *)
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uid*: INTEGER; (* user id of the file's owner *)
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gid*: INTEGER; (* group id of the file's group *)
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pad0: INTEGER;
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rdev*: SysTypes.Device; (* ID of device
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this entry is defined only for
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character special or block
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special files
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*)
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size*: SysTypes.Offset; (* file size in bytes *)
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blksize*: LONGINT; (* preferred blocksize *)
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blocks*: LONGINT; (* # of blocks allocated *)
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atime*: SysTypes.Time; (* time of last access *)
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atimences* : LONGINT;
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mtime*: SysTypes.Time; (* time of last data modification *)
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mtimensec* : LONGINT;
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ctime*: SysTypes.Time; (* time of last file status change *)
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ctimensec* : LONGINT;
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unused0*, unused1*, unused2*: LONGINT;
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END;
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*)
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(* Linux kernel struct stat (2.2.17)
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struct stat {
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unsigned short st_dev;
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unsigned short __pad1;
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unsigned long st_ino;
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unsigned short st_mode;
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unsigned short st_nlink;
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unsigned short st_uid;
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unsigned short st_gid;
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unsigned short st_rdev;
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unsigned short __pad2;
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unsigned long st_size;
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unsigned long st_blksize;
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unsigned long st_blocks;
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unsigned long st_atime;
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unsigned long __unused1;
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unsigned long st_mtime;
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unsigned long __unused2;
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unsigned long st_ctime;
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unsigned long __unused3;
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unsigned long __unused4;
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unsigned long __unused5;
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};
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*)
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CONST
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statbufsize = 144(*64*); (* see <sys/stat.h> *) (* sizeof struct stat gives us 144 on x86_64 and 88 or x86; -- noch *)
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TYPE
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UnixStatRec = ARRAY statbufsize OF SYS.BYTE;
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CONST
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statbufconv =
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(*"is=dev/-s=pad1/ll=ino/Ss=mode/4*is=nlink+uid+gid+rdev/-s=pad2/ll=size/2*ll=blksize,blocks/il=atime/-l/il=mtime/-l/il=ctime/3*-l";*)
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"lL=dev/lL=ino/lL=nlink/Su=mode/2*iu=uid+gid/-i=pad0/lL=rdev/ll=size/2*ll=blksize,blocks/lL=atime/-l/lL=mtime/-l/lL=ctime/3*-l"; (* noch *)
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VAR
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statbuffmt: SysConversions.Format;
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PROCEDURE Stat*(path: ARRAY OF CHAR; VAR buf: StatRec;
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errors: RelatedEvents.Object) : BOOLEAN;
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VAR
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d0, d1, d2: LONGINT;
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origbuf: UnixStatRec;
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BEGIN
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IF uSYS.UNIXCALL(Sys.newstat, d0, d1, SYS.ADR(path), SYS.ADR(origbuf), d2) THEN
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SysConversions.ByFmtFromC(origbuf, buf, statbuffmt);
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RETURN TRUE
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ELSE
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SysErrors.Raise(errors, d0, Sys.newstat, path);
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RETURN FALSE
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END;
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END Stat;
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(* commented temporarily, it is used only in FTPUnixDirLister module *) (*
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PROCEDURE Lstat*(path: ARRAY OF CHAR; VAR buf: StatRec;
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errors: RelatedEvents.Object) : BOOLEAN;
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VAR
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d0, d1: INTEGER;
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origbuf: UnixStatRec;
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BEGIN
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IF SYS.UNIXCALL(Sys.newlstat, d0, d1, SYS.ADR(path), SYS.ADR(origbuf)) THEN
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SysConversions.ByFmtFromC(origbuf, buf, statbuffmt);
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RETURN TRUE
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ELSE
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SysErrors.Raise(errors, d0, Sys.newlstat, path);
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RETURN FALSE
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END;
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END Lstat;
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*)
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PROCEDURE Fstat*(fd: SysTypes.File; VAR buf: StatRec;
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errors: RelatedEvents.Object) : BOOLEAN;
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VAR
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d0, d1, d2: LONGINT;
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origbuf: UnixStatRec;
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BEGIN
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IF uSYS.UNIXCALL(Sys.newfstat, d0, d1, fd, SYS.ADR(origbuf), d2) THEN
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SysConversions.ByFmtFromC(origbuf, buf, statbuffmt);
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RETURN TRUE
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ELSE
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SysErrors.Raise(errors, d0, Sys.newfstat, "");
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RETURN FALSE
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END;
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END Fstat;
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BEGIN
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SysConversions.Compile(statbuffmt, statbufconv);
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END ulmSysStat.
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