os/persistentdata/persistentstorage/sqlite3api/TEST/TCL/tcldistribution/generic/tclFCmd.c
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
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/*
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 * tclFCmd.c
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 *
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 *      This file implements the generic portion of file manipulation 
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 *      subcommands of the "file" command. 
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 *
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 * Copyright (c) 1996-1998 Sun Microsystems, Inc.
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 *
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 * See the file "license.terms" for information on usage and redistribution
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 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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 *
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 * RCS: @(#) $Id: tclFCmd.c,v 1.20.2.2 2005/08/17 17:46:36 hobbs Exp $
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 */
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#include "tclInt.h"
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#include "tclPort.h"
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/*
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 * Declarations for local procedures defined in this file:
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 */
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static int		CopyRenameOneFile _ANSI_ARGS_((Tcl_Interp *interp,
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			    Tcl_Obj *srcPathPtr, Tcl_Obj *destPathPtr, 
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			    int copyFlag, int force));
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static Tcl_Obj *	FileBasename _ANSI_ARGS_((Tcl_Interp *interp,
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			    Tcl_Obj *pathPtr));
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static int		FileCopyRename _ANSI_ARGS_((Tcl_Interp *interp,
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			    int objc, Tcl_Obj *CONST objv[], int copyFlag));
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static int		FileForceOption _ANSI_ARGS_((Tcl_Interp *interp,
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			    int objc, Tcl_Obj *CONST objv[], int *forcePtr));
sl@0
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/*
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 *---------------------------------------------------------------------------
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 *
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 * TclFileRenameCmd
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 *
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 *	This procedure implements the "rename" subcommand of the "file"
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 *      command.  Filename arguments need to be translated to native
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 *	format before being passed to platform-specific code that
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 *	implements rename functionality.
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 *
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 * Results:
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 *	A standard Tcl result.
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 *
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 * Side effects:
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 *	See the user documentation.
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 *
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 *---------------------------------------------------------------------------
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 */
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int
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TclFileRenameCmd(interp, objc, objv)
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    Tcl_Interp *interp;		/* Interp for error reporting. */
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    int objc;			/* Number of arguments. */
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    Tcl_Obj *CONST objv[];	/* Argument strings passed to Tcl_FileCmd. */
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{
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    return FileCopyRename(interp, objc, objv, 0);
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}
sl@0
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/*
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 *---------------------------------------------------------------------------
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 *
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 * TclFileCopyCmd
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 *
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 *	This procedure implements the "copy" subcommand of the "file"
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 *	command.  Filename arguments need to be translated to native
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 *	format before being passed to platform-specific code that
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 *	implements copy functionality.
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 *
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 * Results:
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 *	A standard Tcl result.
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 *
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 * Side effects:
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 *	See the user documentation.
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 *
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 *---------------------------------------------------------------------------
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 */
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int
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TclFileCopyCmd(interp, objc, objv)
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    Tcl_Interp *interp;		/* Used for error reporting */
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    int objc;			/* Number of arguments. */
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    Tcl_Obj *CONST objv[];	/* Argument strings passed to Tcl_FileCmd. */
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{
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    return FileCopyRename(interp, objc, objv, 1);
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}
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/*
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 *---------------------------------------------------------------------------
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 *
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 * FileCopyRename --
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 *
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 *	Performs the work of TclFileRenameCmd and TclFileCopyCmd.
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 *	See comments for those procedures.
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 *
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 * Results:
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 *	See above.
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 *
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 * Side effects:
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 *	See above.
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 *
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 *---------------------------------------------------------------------------
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 */
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static int
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FileCopyRename(interp, objc, objv, copyFlag)
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    Tcl_Interp *interp;		/* Used for error reporting. */
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    int objc;			/* Number of arguments. */
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    Tcl_Obj *CONST objv[];	/* Argument strings passed to Tcl_FileCmd. */
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    int copyFlag;		/* If non-zero, copy source(s).  Otherwise,
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				 * rename them. */
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{
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    int i, result, force;
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    Tcl_StatBuf statBuf; 
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    Tcl_Obj *target;
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    i = FileForceOption(interp, objc - 2, objv + 2, &force);
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    if (i < 0) {
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	return TCL_ERROR;
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    }
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    i += 2;
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    if ((objc - i) < 2) {
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	Tcl_AppendResult(interp, "wrong # args: should be \"", 
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		Tcl_GetString(objv[0]), " ", Tcl_GetString(objv[1]), 
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		" ?options? source ?source ...? target\"", 
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		(char *) NULL);
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	return TCL_ERROR;
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    }
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    /*
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     * If target doesn't exist or isn't a directory, try the copy/rename.
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     * More than 2 arguments is only valid if the target is an existing
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     * directory.
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     */
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    target = objv[objc - 1];
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    if (Tcl_FSConvertToPathType(interp, target) != TCL_OK) {
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	return TCL_ERROR;
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    }
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    result = TCL_OK;
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    /*
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     * Call Tcl_FSStat() so that if target is a symlink that points to a
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     * directory we will put the sources in that directory instead of
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     * overwriting the symlink.
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     */
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    if ((Tcl_FSStat(target, &statBuf) != 0) || !S_ISDIR(statBuf.st_mode)) {
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	if ((objc - i) > 2) {
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	    errno = ENOTDIR;
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	    Tcl_PosixError(interp);
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	    Tcl_AppendResult(interp, "error ",
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		    ((copyFlag) ? "copying" : "renaming"), ": target \"",
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		    Tcl_GetString(target), "\" is not a directory", 
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		    (char *) NULL);
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	    result = TCL_ERROR;
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	} else {
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	    /*
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	     * Even though already have target == translated(objv[i+1]),
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	     * pass the original argument down, so if there's an error, the
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	     * error message will reflect the original arguments.
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	     */
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	    result = CopyRenameOneFile(interp, objv[i], objv[i + 1], copyFlag,
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		    force);
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	}
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	return result;
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    }
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    /*
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     * Move each source file into target directory.  Extract the basename
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     * from each source, and append it to the end of the target path.
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     */
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    for ( ; i < objc - 1; i++) {
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	Tcl_Obj *jargv[2];
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	Tcl_Obj *source, *newFileName;
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	Tcl_Obj *temp;
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	source = FileBasename(interp, objv[i]);
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	if (source == NULL) {
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	    result = TCL_ERROR;
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	    break;
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	}
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	jargv[0] = objv[objc - 1];
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	jargv[1] = source;
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	temp = Tcl_NewListObj(2, jargv);
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	newFileName = Tcl_FSJoinPath(temp, -1);
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	Tcl_IncrRefCount(newFileName);
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	result = CopyRenameOneFile(interp, objv[i], newFileName, copyFlag,
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		force);
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	Tcl_DecrRefCount(newFileName);
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	Tcl_DecrRefCount(temp);
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	Tcl_DecrRefCount(source);
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	if (result == TCL_ERROR) {
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	    break;
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	}
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    }
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    return result;
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}
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/*
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 *---------------------------------------------------------------------------
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 *
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 * TclFileMakeDirsCmd
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 *
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 *	This procedure implements the "mkdir" subcommand of the "file"
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 *      command.  Filename arguments need to be translated to native
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 *	format before being passed to platform-specific code that
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 *	implements mkdir functionality.
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 *
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 * Results:
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 *	A standard Tcl result.
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 *
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 * Side effects:
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 *	See the user documentation.
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 *
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 *----------------------------------------------------------------------
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 */
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int
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TclFileMakeDirsCmd(interp, objc, objv)
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    Tcl_Interp *interp;		/* Used for error reporting. */
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    int objc;			/* Number of arguments */
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    Tcl_Obj *CONST objv[];	/* Argument strings passed to Tcl_FileCmd. */
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{
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    Tcl_Obj *errfile;
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    int result, i, j, pobjc;
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    Tcl_Obj *split = NULL;
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    Tcl_Obj *target = NULL;
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    Tcl_StatBuf statBuf;
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    errfile = NULL;
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    result = TCL_OK;
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    for (i = 2; i < objc; i++) {
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	if (Tcl_FSConvertToPathType(interp, objv[i]) != TCL_OK) {
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	    result = TCL_ERROR;
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	    break;
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	}
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	split = Tcl_FSSplitPath(objv[i],&pobjc);
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	if (pobjc == 0) {
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	    errno = ENOENT;
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	    errfile = objv[i];
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	    break;
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	}
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	for (j = 0; j < pobjc; j++) {
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	    target = Tcl_FSJoinPath(split, j + 1);
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	    Tcl_IncrRefCount(target);
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	    /*
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	     * Call Tcl_FSStat() so that if target is a symlink that
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	     * points to a directory we will create subdirectories in
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	     * that directory.
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	     */
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	    if (Tcl_FSStat(target, &statBuf) == 0) {
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		if (!S_ISDIR(statBuf.st_mode)) {
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		    errno = EEXIST;
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		    errfile = target;
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		    goto done;
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		}
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	    } else if (errno != ENOENT) {
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		/*
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		 * If Tcl_FSStat() failed and the error is anything
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		 * other than non-existence of the target, throw the
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		 * error.
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		 */
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		errfile = target;
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		goto done;
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	    } else if (Tcl_FSCreateDirectory(target) != TCL_OK) {
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		/*
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		 * Create might have failed because of being in a race
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		 * condition with another process trying to create the
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		 * same subdirectory.
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		 */
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		if (errno == EEXIST) {
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		    if ((Tcl_FSStat(target, &statBuf) == 0)
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			    && S_ISDIR(statBuf.st_mode)) {
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			/*
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			 * It is a directory that wasn't there before,
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			 * so keep going without error.
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			 */
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			Tcl_ResetResult(interp);
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		    } else {
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			errfile = target;
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			goto done;
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		    }
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		} else {
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		    errfile = target;
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		    goto done;
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		}
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	    }
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 	    /* Forget about this sub-path */
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	    Tcl_DecrRefCount(target);
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	    target = NULL;
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	}
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	Tcl_DecrRefCount(split);
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	split = NULL;
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    }
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    done:
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    if (errfile != NULL) {
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	Tcl_AppendResult(interp, "can't create directory \"",
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		Tcl_GetString(errfile), "\": ", Tcl_PosixError(interp), 
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		(char *) NULL);
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	result = TCL_ERROR;
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    }
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    if (split != NULL) {
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	Tcl_DecrRefCount(split);
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    }
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    if (target != NULL) {
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	Tcl_DecrRefCount(target);
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    }
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    return result;
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}
sl@0
   318

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/*
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 *----------------------------------------------------------------------
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 *
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 * TclFileDeleteCmd
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 *
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 *	This procedure implements the "delete" subcommand of the "file"
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 *      command.
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 *
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 * Results:
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 *	A standard Tcl result.
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 *
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 * Side effects:
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 *	See the user documentation.
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 *
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 *----------------------------------------------------------------------
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 */
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int
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TclFileDeleteCmd(interp, objc, objv)
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    Tcl_Interp *interp;		/* Used for error reporting */
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    int objc;			/* Number of arguments */
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    Tcl_Obj *CONST objv[];	/* Argument strings passed to Tcl_FileCmd. */
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{
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   342
    int i, force, result;
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    Tcl_Obj *errfile;
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    Tcl_Obj *errorBuffer = NULL;
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    i = FileForceOption(interp, objc - 2, objv + 2, &force);
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    if (i < 0) {
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   348
	return TCL_ERROR;
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   349
    }
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   350
    i += 2;
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   351
    if ((objc - i) < 1) {
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   352
	Tcl_AppendResult(interp, "wrong # args: should be \"", 
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   353
		Tcl_GetString(objv[0]), " ", Tcl_GetString(objv[1]), 
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   354
		" ?options? file ?file ...?\"", (char *) NULL);
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   355
	return TCL_ERROR;
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   356
    }
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   357
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   358
    errfile = NULL;
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   359
    result = TCL_OK;
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   360
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   361
    for ( ; i < objc; i++) {
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   362
	Tcl_StatBuf statBuf;
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   363
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   364
	errfile = objv[i];
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   365
	if (Tcl_FSConvertToPathType(interp, objv[i]) != TCL_OK) {
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   366
	    result = TCL_ERROR;
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   367
	    goto done;
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   368
	}
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   369
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   370
	/*
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   371
	 * Call lstat() to get info so can delete symbolic link itself.
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   372
	 */
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   373
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   374
	if (Tcl_FSLstat(objv[i], &statBuf) != 0) {
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   375
	    /*
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   376
	     * Trying to delete a file that does not exist is not
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	     * considered an error, just a no-op
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   378
	     */
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   379
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   380
	    if (errno != ENOENT) {
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   381
		result = TCL_ERROR;
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   382
	    }
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   383
	} else if (S_ISDIR(statBuf.st_mode)) {
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   384
	    /* 
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   385
	     * We own a reference count on errorBuffer, if it was set
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   386
	     * as a result of this call. 
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   387
	     */
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   388
	    result = Tcl_FSRemoveDirectory(objv[i], force, &errorBuffer);
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   389
	    if (result != TCL_OK) {
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   390
		if ((force == 0) && (errno == EEXIST)) {
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   391
		    Tcl_AppendResult(interp, "error deleting \"", 
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   392
			    Tcl_GetString(objv[i]),
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   393
			    "\": directory not empty", (char *) NULL);
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   394
		    Tcl_PosixError(interp);
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   395
		    goto done;
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   396
		}
sl@0
   397
sl@0
   398
		/* 
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   399
		 * If possible, use the untranslated name for the file.
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   400
		 */
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   401
		 
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   402
		errfile = errorBuffer;
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   403
		/* FS supposed to check between translated objv and errfile */
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   404
		if (Tcl_FSEqualPaths(objv[i], errfile)) {
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   405
		    errfile = objv[i];
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   406
		}
sl@0
   407
	    }
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   408
	} else {
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   409
	    result = Tcl_FSDeleteFile(objv[i]);
sl@0
   410
	}
sl@0
   411
	
sl@0
   412
	if (result != TCL_OK) {
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   413
	    result = TCL_ERROR;
sl@0
   414
	    /* 
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   415
	     * It is important that we break on error, otherwise we
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   416
	     * might end up owning reference counts on numerous
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   417
	     * errorBuffers.
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   418
	     */
sl@0
   419
	    break;
sl@0
   420
	}
sl@0
   421
    }
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   422
    if (result != TCL_OK) {
sl@0
   423
	if (errfile == NULL) {
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   424
	    /* 
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   425
	     * We try to accomodate poor error results from our 
sl@0
   426
	     * Tcl_FS calls 
sl@0
   427
	     */
sl@0
   428
	    Tcl_AppendResult(interp, "error deleting unknown file: ", 
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   429
		    Tcl_PosixError(interp), (char *) NULL);
sl@0
   430
	} else {
sl@0
   431
	    Tcl_AppendResult(interp, "error deleting \"", 
sl@0
   432
		    Tcl_GetString(errfile), "\": ", 
sl@0
   433
		    Tcl_PosixError(interp), (char *) NULL);
sl@0
   434
	}
sl@0
   435
    } 
sl@0
   436
    done:
sl@0
   437
    if (errorBuffer != NULL) {
sl@0
   438
	Tcl_DecrRefCount(errorBuffer);
sl@0
   439
    }
sl@0
   440
    return result;
sl@0
   441
}
sl@0
   442

sl@0
   443
/*
sl@0
   444
 *---------------------------------------------------------------------------
sl@0
   445
 *
sl@0
   446
 * CopyRenameOneFile
sl@0
   447
 *
sl@0
   448
 *	Copies or renames specified source file or directory hierarchy
sl@0
   449
 *	to the specified target.  
sl@0
   450
 *
sl@0
   451
 * Results:
sl@0
   452
 *	A standard Tcl result.
sl@0
   453
 *
sl@0
   454
 * Side effects:
sl@0
   455
 *	Target is overwritten if the force flag is set.  Attempting to
sl@0
   456
 *	copy/rename a file onto a directory or a directory onto a file
sl@0
   457
 *	will always result in an error.  
sl@0
   458
 *
sl@0
   459
 *----------------------------------------------------------------------
sl@0
   460
 */
sl@0
   461
sl@0
   462
static int
sl@0
   463
CopyRenameOneFile(interp, source, target, copyFlag, force) 
sl@0
   464
    Tcl_Interp *interp;		/* Used for error reporting. */
sl@0
   465
    Tcl_Obj *source;		/* Pathname of file to copy.  May need to
sl@0
   466
				 * be translated. */
sl@0
   467
    Tcl_Obj *target;		/* Pathname of file to create/overwrite.
sl@0
   468
				 * May need to be translated. */
sl@0
   469
    int copyFlag;		/* If non-zero, copy files.  Otherwise,
sl@0
   470
				 * rename them. */
sl@0
   471
    int force;			/* If non-zero, overwrite target file if it
sl@0
   472
				 * exists.  Otherwise, error if target already
sl@0
   473
				 * exists. */
sl@0
   474
{
sl@0
   475
    int result;
sl@0
   476
    Tcl_Obj *errfile, *errorBuffer;
sl@0
   477
    /* If source is a link, then this is the real file/directory */
sl@0
   478
    Tcl_Obj *actualSource = NULL;
sl@0
   479
    Tcl_StatBuf sourceStatBuf, targetStatBuf;
sl@0
   480
sl@0
   481
    if (Tcl_FSConvertToPathType(interp, source) != TCL_OK) {
sl@0
   482
	return TCL_ERROR;
sl@0
   483
    }
sl@0
   484
    if (Tcl_FSConvertToPathType(interp, target) != TCL_OK) {
sl@0
   485
	return TCL_ERROR;
sl@0
   486
    }
sl@0
   487
    
sl@0
   488
    errfile = NULL;
sl@0
   489
    errorBuffer = NULL;
sl@0
   490
    result = TCL_ERROR;
sl@0
   491
    
sl@0
   492
    /*
sl@0
   493
     * We want to copy/rename links and not the files they point to, so we
sl@0
   494
     * use lstat(). If target is a link, we also want to replace the 
sl@0
   495
     * link and not the file it points to, so we also use lstat() on the
sl@0
   496
     * target.
sl@0
   497
     */
sl@0
   498
sl@0
   499
    if (Tcl_FSLstat(source, &sourceStatBuf) != 0) {
sl@0
   500
	errfile = source;
sl@0
   501
	goto done;
sl@0
   502
    }
sl@0
   503
    if (Tcl_FSLstat(target, &targetStatBuf) != 0) {
sl@0
   504
	if (errno != ENOENT) {
sl@0
   505
	    errfile = target;
sl@0
   506
	    goto done;
sl@0
   507
	}
sl@0
   508
    } else {
sl@0
   509
	if (force == 0) {
sl@0
   510
	    errno = EEXIST;
sl@0
   511
	    errfile = target;
sl@0
   512
	    goto done;
sl@0
   513
	}
sl@0
   514
sl@0
   515
        /* 
sl@0
   516
         * Prevent copying or renaming a file onto itself.  Under Windows, 
sl@0
   517
         * stat always returns 0 for st_ino.  However, the Windows-specific 
sl@0
   518
         * code knows how to deal with copying or renaming a file on top of
sl@0
   519
         * itself.  It might be a good idea to write a stat that worked.
sl@0
   520
         */
sl@0
   521
     
sl@0
   522
        if ((sourceStatBuf.st_ino != 0) && (targetStatBuf.st_ino != 0)) {
sl@0
   523
            if ((sourceStatBuf.st_ino == targetStatBuf.st_ino) &&
sl@0
   524
            	    (sourceStatBuf.st_dev == targetStatBuf.st_dev)) {
sl@0
   525
            	result = TCL_OK;
sl@0
   526
            	goto done;
sl@0
   527
            }
sl@0
   528
        }
sl@0
   529
sl@0
   530
	/*
sl@0
   531
	 * Prevent copying/renaming a file onto a directory and
sl@0
   532
	 * vice-versa.  This is a policy decision based on the fact that
sl@0
   533
	 * existing implementations of copy and rename on all platforms
sl@0
   534
	 * also prevent this.
sl@0
   535
	 */
sl@0
   536
sl@0
   537
	if (S_ISDIR(sourceStatBuf.st_mode)
sl@0
   538
                && !S_ISDIR(targetStatBuf.st_mode)) {
sl@0
   539
	    errno = EISDIR;
sl@0
   540
	    Tcl_AppendResult(interp, "can't overwrite file \"", 
sl@0
   541
		    Tcl_GetString(target), "\" with directory \"", 
sl@0
   542
		    Tcl_GetString(source), "\"", (char *) NULL);
sl@0
   543
	    goto done;
sl@0
   544
	}
sl@0
   545
	if (!S_ISDIR(sourceStatBuf.st_mode)
sl@0
   546
	        && S_ISDIR(targetStatBuf.st_mode)) {
sl@0
   547
	    errno = EISDIR;
sl@0
   548
	    Tcl_AppendResult(interp, "can't overwrite directory \"", 
sl@0
   549
		    Tcl_GetString(target), "\" with file \"", 
sl@0
   550
		    Tcl_GetString(source), "\"", (char *) NULL);
sl@0
   551
	    goto done;
sl@0
   552
	}
sl@0
   553
    }
sl@0
   554
sl@0
   555
    if (copyFlag == 0) {
sl@0
   556
	result = Tcl_FSRenameFile(source, target);
sl@0
   557
	if (result == TCL_OK) {
sl@0
   558
	    goto done;
sl@0
   559
	}
sl@0
   560
	    
sl@0
   561
	if (errno == EINVAL) {
sl@0
   562
	    Tcl_AppendResult(interp, "error renaming \"", 
sl@0
   563
		    Tcl_GetString(source), "\" to \"",
sl@0
   564
		    Tcl_GetString(target), "\": trying to rename a volume or ",
sl@0
   565
		    "move a directory into itself", (char *) NULL);
sl@0
   566
	    goto done;
sl@0
   567
	} else if (errno != EXDEV) {
sl@0
   568
	    errfile = target;
sl@0
   569
	    goto done;
sl@0
   570
	}
sl@0
   571
	
sl@0
   572
	/*
sl@0
   573
	 * The rename failed because the move was across file systems.
sl@0
   574
	 * Fall through to copy file and then remove original.  Note that
sl@0
   575
	 * the low-level Tcl_FSRenameFileProc in the filesystem is allowed 
sl@0
   576
	 * to implement cross-filesystem moves itself, if it desires.
sl@0
   577
	 */
sl@0
   578
    }
sl@0
   579
sl@0
   580
    actualSource = source;
sl@0
   581
    Tcl_IncrRefCount(actualSource);
sl@0
   582
#if 0
sl@0
   583
#ifdef S_ISLNK
sl@0
   584
    /* 
sl@0
   585
     * To add a flag to make 'copy' copy links instead of files, we could
sl@0
   586
     * add a condition to ignore this 'if' here.
sl@0
   587
     */
sl@0
   588
    if (copyFlag && S_ISLNK(sourceStatBuf.st_mode)) {
sl@0
   589
	/* 
sl@0
   590
	 * We want to copy files not links.  Therefore we must follow the
sl@0
   591
	 * link.  There are two purposes to this 'stat' call here.  First
sl@0
   592
	 * we want to know if the linked-file/dir actually exists, and
sl@0
   593
	 * second, in the block of code which follows, some 20 lines
sl@0
   594
	 * down, we want to check if the thing is a file or directory.
sl@0
   595
	 */
sl@0
   596
	if (Tcl_FSStat(source, &sourceStatBuf) != 0) {
sl@0
   597
	    /* Actual file doesn't exist */
sl@0
   598
	    Tcl_AppendResult(interp, 
sl@0
   599
		    "error copying \"", Tcl_GetString(source), 
sl@0
   600
		    "\": the target of this link doesn't exist",
sl@0
   601
		    (char *) NULL);
sl@0
   602
	    goto done;
sl@0
   603
	} else {
sl@0
   604
	    int counter = 0;
sl@0
   605
	    while (1) {
sl@0
   606
		Tcl_Obj *path = Tcl_FSLink(actualSource, NULL, 0);
sl@0
   607
		if (path == NULL) {
sl@0
   608
		    break;
sl@0
   609
		}
sl@0
   610
		Tcl_DecrRefCount(actualSource);
sl@0
   611
		actualSource = path;
sl@0
   612
		counter++;
sl@0
   613
		/* Arbitrary limit of 20 links to follow */
sl@0
   614
		if (counter > 20) {
sl@0
   615
		    /* Too many links */
sl@0
   616
		    Tcl_SetErrno(EMLINK);
sl@0
   617
		    errfile = source;
sl@0
   618
		    goto done;
sl@0
   619
		}
sl@0
   620
	    }
sl@0
   621
	    /* Now 'actualSource' is the correct file */
sl@0
   622
	}
sl@0
   623
    }
sl@0
   624
#endif
sl@0
   625
#endif
sl@0
   626
sl@0
   627
    if (S_ISDIR(sourceStatBuf.st_mode)) {
sl@0
   628
	result = Tcl_FSCopyDirectory(actualSource, target, &errorBuffer);
sl@0
   629
	if (result != TCL_OK) {
sl@0
   630
	    if (errno == EXDEV) {
sl@0
   631
		/* 
sl@0
   632
		 * The copy failed because we're trying to do a
sl@0
   633
		 * cross-filesystem copy.  We do this through our Tcl
sl@0
   634
		 * library.
sl@0
   635
		 */
sl@0
   636
		Tcl_SavedResult savedResult;
sl@0
   637
		Tcl_Obj *copyCommand = Tcl_NewListObj(0,NULL);
sl@0
   638
		Tcl_IncrRefCount(copyCommand);
sl@0
   639
		Tcl_ListObjAppendElement(interp, copyCommand, 
sl@0
   640
			Tcl_NewStringObj("::tcl::CopyDirectory",-1));
sl@0
   641
		if (copyFlag) {
sl@0
   642
		    Tcl_ListObjAppendElement(interp, copyCommand, 
sl@0
   643
					     Tcl_NewStringObj("copying",-1));
sl@0
   644
		} else {
sl@0
   645
		    Tcl_ListObjAppendElement(interp, copyCommand, 
sl@0
   646
					     Tcl_NewStringObj("renaming",-1));
sl@0
   647
		}
sl@0
   648
		Tcl_ListObjAppendElement(interp, copyCommand, source);
sl@0
   649
		Tcl_ListObjAppendElement(interp, copyCommand, target);
sl@0
   650
		Tcl_SaveResult(interp, &savedResult);
sl@0
   651
		result = Tcl_EvalObjEx(interp, copyCommand, 
sl@0
   652
				       TCL_EVAL_GLOBAL | TCL_EVAL_DIRECT);
sl@0
   653
		Tcl_DecrRefCount(copyCommand);
sl@0
   654
		if (result != TCL_OK) {
sl@0
   655
		    /* 
sl@0
   656
		     * There was an error in the Tcl-level copy.
sl@0
   657
		     * We will pass on the Tcl error message and
sl@0
   658
		     * can ensure this by setting errfile to NULL
sl@0
   659
		     */
sl@0
   660
		    Tcl_DiscardResult(&savedResult);
sl@0
   661
		    errfile = NULL;
sl@0
   662
		} else {
sl@0
   663
		    /* The copy was successful */
sl@0
   664
		    Tcl_RestoreResult(interp, &savedResult);
sl@0
   665
		}
sl@0
   666
	    } else {
sl@0
   667
		errfile = errorBuffer;
sl@0
   668
		if (Tcl_FSEqualPaths(errfile, source)) {
sl@0
   669
		    errfile = source;
sl@0
   670
		} else if (Tcl_FSEqualPaths(errfile, target)) {
sl@0
   671
		    errfile = target;
sl@0
   672
		}
sl@0
   673
	    }
sl@0
   674
	}
sl@0
   675
    } else {
sl@0
   676
	result = Tcl_FSCopyFile(actualSource, target);
sl@0
   677
	if ((result != TCL_OK) && (errno == EXDEV)) {
sl@0
   678
	    result = TclCrossFilesystemCopy(interp, source, target);
sl@0
   679
	}
sl@0
   680
	if (result != TCL_OK) {
sl@0
   681
	    /* 
sl@0
   682
	     * We could examine 'errno' to double-check if the problem
sl@0
   683
	     * was with the target, but we checked the source above,
sl@0
   684
	     * so it should be quite clear 
sl@0
   685
	     */
sl@0
   686
	    errfile = target;
sl@0
   687
	    /* 
sl@0
   688
	     * We now need to reset the result, because the above call,
sl@0
   689
	     * if it failed, may have put an error message in place.
sl@0
   690
	     * (Ideally we would prefer not to pass an interpreter in
sl@0
   691
	     * above, but the channel IO code used by
sl@0
   692
	     * TclCrossFilesystemCopy currently requires one)
sl@0
   693
	     */
sl@0
   694
	    Tcl_ResetResult(interp);
sl@0
   695
	}
sl@0
   696
    }
sl@0
   697
    if ((copyFlag == 0) && (result == TCL_OK)) {
sl@0
   698
	if (S_ISDIR(sourceStatBuf.st_mode)) {
sl@0
   699
	    result = Tcl_FSRemoveDirectory(source, 1, &errorBuffer);
sl@0
   700
	    if (result != TCL_OK) {
sl@0
   701
		if (Tcl_FSEqualPaths(errfile, source) == 0) {
sl@0
   702
		    errfile = source;
sl@0
   703
		}
sl@0
   704
	    }
sl@0
   705
	} else {
sl@0
   706
	    result = Tcl_FSDeleteFile(source);
sl@0
   707
	    if (result != TCL_OK) {
sl@0
   708
		errfile = source;
sl@0
   709
	    }
sl@0
   710
	}
sl@0
   711
	if (result != TCL_OK) {
sl@0
   712
	    Tcl_AppendResult(interp, "can't unlink \"", 
sl@0
   713
		Tcl_GetString(errfile), "\": ",
sl@0
   714
		Tcl_PosixError(interp), (char *) NULL);
sl@0
   715
	    errfile = NULL;
sl@0
   716
	}
sl@0
   717
    }
sl@0
   718
    
sl@0
   719
    done:
sl@0
   720
    if (errfile != NULL) {
sl@0
   721
	Tcl_AppendResult(interp, 
sl@0
   722
		((copyFlag) ? "error copying \"" : "error renaming \""),
sl@0
   723
		 Tcl_GetString(source), (char *) NULL);
sl@0
   724
	if (errfile != source) {
sl@0
   725
	    Tcl_AppendResult(interp, "\" to \"", Tcl_GetString(target), 
sl@0
   726
			     (char *) NULL);
sl@0
   727
	    if (errfile != target) {
sl@0
   728
		Tcl_AppendResult(interp, "\": \"", Tcl_GetString(errfile), 
sl@0
   729
				 (char *) NULL);
sl@0
   730
	    }
sl@0
   731
	}
sl@0
   732
	Tcl_AppendResult(interp, "\": ", Tcl_PosixError(interp),
sl@0
   733
		(char *) NULL);
sl@0
   734
    }
sl@0
   735
    if (errorBuffer != NULL) {
sl@0
   736
        Tcl_DecrRefCount(errorBuffer);
sl@0
   737
    }
sl@0
   738
    if (actualSource != NULL) {
sl@0
   739
	Tcl_DecrRefCount(actualSource);
sl@0
   740
    }
sl@0
   741
    return result;
sl@0
   742
}
sl@0
   743

sl@0
   744
/*
sl@0
   745
 *---------------------------------------------------------------------------
sl@0
   746
 *
sl@0
   747
 * FileForceOption --
sl@0
   748
 *
sl@0
   749
 *	Helps parse command line options for file commands that take
sl@0
   750
 *	the "-force" and "--" options.
sl@0
   751
 *
sl@0
   752
 * Results:
sl@0
   753
 *	The return value is how many arguments from argv were consumed
sl@0
   754
 *	by this function, or -1 if there was an error parsing the
sl@0
   755
 *	options.  If an error occurred, an error message is left in the
sl@0
   756
 *	interp's result.
sl@0
   757
 *
sl@0
   758
 * Side effects:
sl@0
   759
 *	None.
sl@0
   760
 *
sl@0
   761
 *---------------------------------------------------------------------------
sl@0
   762
 */
sl@0
   763
sl@0
   764
static int
sl@0
   765
FileForceOption(interp, objc, objv, forcePtr)
sl@0
   766
    Tcl_Interp *interp;		/* Interp, for error return. */
sl@0
   767
    int objc;			/* Number of arguments. */
sl@0
   768
    Tcl_Obj *CONST objv[];	/* Argument strings.  First command line
sl@0
   769
				 * option, if it exists, begins at 0. */
sl@0
   770
    int *forcePtr;		/* If the "-force" was specified, *forcePtr
sl@0
   771
				 * is filled with 1, otherwise with 0. */
sl@0
   772
{
sl@0
   773
    int force, i;
sl@0
   774
    
sl@0
   775
    force = 0;
sl@0
   776
    for (i = 0; i < objc; i++) {
sl@0
   777
	if (Tcl_GetString(objv[i])[0] != '-') {
sl@0
   778
	    break;
sl@0
   779
	}
sl@0
   780
	if (strcmp(Tcl_GetString(objv[i]), "-force") == 0) {
sl@0
   781
	    force = 1;
sl@0
   782
	} else if (strcmp(Tcl_GetString(objv[i]), "--") == 0) {
sl@0
   783
	    i++;
sl@0
   784
	    break;
sl@0
   785
	} else {
sl@0
   786
	    Tcl_AppendResult(interp, "bad option \"", Tcl_GetString(objv[i]), 
sl@0
   787
		    "\": should be -force or --", (char *)NULL);
sl@0
   788
	    return -1;
sl@0
   789
	}
sl@0
   790
    }
sl@0
   791
    *forcePtr = force;
sl@0
   792
    return i;
sl@0
   793
}
sl@0
   794
/*
sl@0
   795
 *---------------------------------------------------------------------------
sl@0
   796
 *
sl@0
   797
 * FileBasename --
sl@0
   798
 *
sl@0
   799
 *	Given a path in either tcl format (with / separators), or in the
sl@0
   800
 *	platform-specific format for the current platform, return all the
sl@0
   801
 *	characters in the path after the last directory separator.  But,
sl@0
   802
 *	if path is the root directory, returns no characters.
sl@0
   803
 *
sl@0
   804
 * Results:
sl@0
   805
 *	Returns the string object that represents the basename.  If there 
sl@0
   806
 *	is an error, an error message is left in interp, and NULL is 
sl@0
   807
 *	returned.
sl@0
   808
 *
sl@0
   809
 * Side effects:
sl@0
   810
 *	None.
sl@0
   811
 *
sl@0
   812
 *---------------------------------------------------------------------------
sl@0
   813
 */
sl@0
   814
sl@0
   815
static Tcl_Obj *
sl@0
   816
FileBasename(interp, pathPtr)
sl@0
   817
    Tcl_Interp *interp;		/* Interp, for error return. */
sl@0
   818
    Tcl_Obj *pathPtr;		/* Path whose basename to extract. */
sl@0
   819
{
sl@0
   820
    int objc;
sl@0
   821
    Tcl_Obj *splitPtr;
sl@0
   822
    Tcl_Obj *resultPtr = NULL;
sl@0
   823
    
sl@0
   824
    splitPtr = Tcl_FSSplitPath(pathPtr, &objc);
sl@0
   825
sl@0
   826
    if (objc != 0) {
sl@0
   827
	if ((objc == 1) && (*Tcl_GetString(pathPtr) == '~')) {
sl@0
   828
	    Tcl_DecrRefCount(splitPtr);
sl@0
   829
	    if (Tcl_FSConvertToPathType(interp, pathPtr) != TCL_OK) {
sl@0
   830
		return NULL;
sl@0
   831
	    }
sl@0
   832
	    splitPtr = Tcl_FSSplitPath(pathPtr, &objc);
sl@0
   833
	}
sl@0
   834
sl@0
   835
	/*
sl@0
   836
	 * Return the last component, unless it is the only component, and it
sl@0
   837
	 * is the root of an absolute path.
sl@0
   838
	 */
sl@0
   839
sl@0
   840
	if (objc > 0) {
sl@0
   841
	    Tcl_ListObjIndex(NULL, splitPtr, objc-1, &resultPtr);
sl@0
   842
	    if ((objc == 1) &&
sl@0
   843
	      (Tcl_FSGetPathType(resultPtr) != TCL_PATH_RELATIVE)) {
sl@0
   844
		resultPtr = NULL;
sl@0
   845
	    }
sl@0
   846
	}
sl@0
   847
    }
sl@0
   848
    if (resultPtr == NULL) {
sl@0
   849
	resultPtr = Tcl_NewObj();
sl@0
   850
    }
sl@0
   851
    Tcl_IncrRefCount(resultPtr);
sl@0
   852
    Tcl_DecrRefCount(splitPtr);
sl@0
   853
    return resultPtr;
sl@0
   854
}
sl@0
   855

sl@0
   856
/*
sl@0
   857
 *----------------------------------------------------------------------
sl@0
   858
 *
sl@0
   859
 * TclFileAttrsCmd --
sl@0
   860
 *
sl@0
   861
 *      Sets or gets the platform-specific attributes of a file.  The
sl@0
   862
 *      objc-objv points to the file name with the rest of the command
sl@0
   863
 *      line following.  This routine uses platform-specific tables of
sl@0
   864
 *      option strings and callbacks.  The callback to get the
sl@0
   865
 *      attributes take three parameters:
sl@0
   866
 *	    Tcl_Interp *interp;	    The interp to report errors with.
sl@0
   867
 *				    Since this is an object-based API,
sl@0
   868
 *				    the object form of the result should 
sl@0
   869
 *				    be used.
sl@0
   870
 *	    CONST char *fileName;   This is extracted using
sl@0
   871
 *				    Tcl_TranslateFileName.
sl@0
   872
 *	    TclObj **attrObjPtrPtr; A new object to hold the attribute
sl@0
   873
 *				    is allocated and put here.
sl@0
   874
 *	The first two parameters of the callback used to write out the
sl@0
   875
 *	attributes are the same. The third parameter is:
sl@0
   876
 *	    CONST *attrObjPtr;	    A pointer to the object that has
sl@0
   877
 *				    the new attribute.
sl@0
   878
 *	They both return standard TCL errors; if the routine to get
sl@0
   879
 *	an attribute fails, no object is allocated and *attrObjPtrPtr
sl@0
   880
 *	is unchanged.
sl@0
   881
 *
sl@0
   882
 * Results:
sl@0
   883
 *      Standard TCL error.
sl@0
   884
 *
sl@0
   885
 * Side effects:
sl@0
   886
 *      May set file attributes for the file name.
sl@0
   887
 *      
sl@0
   888
 *----------------------------------------------------------------------
sl@0
   889
 */
sl@0
   890
sl@0
   891
int
sl@0
   892
TclFileAttrsCmd(interp, objc, objv)
sl@0
   893
    Tcl_Interp *interp;		/* The interpreter for error reporting. */
sl@0
   894
    int objc;			/* Number of command line arguments. */
sl@0
   895
    Tcl_Obj *CONST objv[];	/* The command line objects. */
sl@0
   896
{
sl@0
   897
    int result;
sl@0
   898
    CONST char ** attributeStrings;
sl@0
   899
    Tcl_Obj* objStrings = NULL;
sl@0
   900
    int numObjStrings = -1;
sl@0
   901
    Tcl_Obj *filePtr;
sl@0
   902
    
sl@0
   903
    if (objc < 3) {
sl@0
   904
	Tcl_WrongNumArgs(interp, 2, objv,
sl@0
   905
		"name ?option? ?value? ?option value ...?");
sl@0
   906
	return TCL_ERROR;
sl@0
   907
    }
sl@0
   908
sl@0
   909
    filePtr = objv[2];
sl@0
   910
    if (Tcl_FSConvertToPathType(interp, filePtr) != TCL_OK) {
sl@0
   911
    	return TCL_ERROR;
sl@0
   912
    }
sl@0
   913
    
sl@0
   914
    objc -= 3;
sl@0
   915
    objv += 3;
sl@0
   916
    result = TCL_ERROR;
sl@0
   917
    Tcl_SetErrno(0);
sl@0
   918
    attributeStrings = Tcl_FSFileAttrStrings(filePtr, &objStrings);
sl@0
   919
    if (attributeStrings == NULL) {
sl@0
   920
	int index;
sl@0
   921
	Tcl_Obj *objPtr;
sl@0
   922
	if (objStrings == NULL) {
sl@0
   923
	    if (Tcl_GetErrno() != 0) {
sl@0
   924
		/* 
sl@0
   925
		 * There was an error, probably that the filePtr is
sl@0
   926
		 * not accepted by any filesystem
sl@0
   927
		 */
sl@0
   928
		Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), 
sl@0
   929
			"could not read \"", Tcl_GetString(filePtr), 
sl@0
   930
			"\": ", Tcl_PosixError(interp), 
sl@0
   931
			(char *) NULL);
sl@0
   932
		return TCL_ERROR;
sl@0
   933
	    }
sl@0
   934
	    goto end;
sl@0
   935
	}
sl@0
   936
	/* We own the object now */
sl@0
   937
	Tcl_IncrRefCount(objStrings);
sl@0
   938
        /* Use objStrings as a list object */
sl@0
   939
	if (Tcl_ListObjLength(interp, objStrings, &numObjStrings) != TCL_OK) {
sl@0
   940
	    goto end;
sl@0
   941
	}
sl@0
   942
	attributeStrings = (CONST char **)
sl@0
   943
		ckalloc ((1+numObjStrings) * sizeof(char*));
sl@0
   944
	for (index = 0; index < numObjStrings; index++) {
sl@0
   945
	    Tcl_ListObjIndex(interp, objStrings, index, &objPtr);
sl@0
   946
	    attributeStrings[index] = Tcl_GetString(objPtr);
sl@0
   947
	}
sl@0
   948
	attributeStrings[index] = NULL;
sl@0
   949
    }
sl@0
   950
    if (objc == 0) {
sl@0
   951
	/*
sl@0
   952
	 * Get all attributes.
sl@0
   953
	 */
sl@0
   954
sl@0
   955
	int index;
sl@0
   956
	Tcl_Obj *listPtr;
sl@0
   957
	 
sl@0
   958
	listPtr = Tcl_NewListObj(0, NULL);
sl@0
   959
	for (index = 0; attributeStrings[index] != NULL; index++) {
sl@0
   960
	    Tcl_Obj *objPtr = Tcl_NewStringObj(attributeStrings[index], -1);
sl@0
   961
	    Tcl_ListObjAppendElement(interp, listPtr, objPtr);
sl@0
   962
	    /* We now forget about objPtr, it is in the list */
sl@0
   963
	    objPtr = NULL;
sl@0
   964
	    if (Tcl_FSFileAttrsGet(interp, index, filePtr,
sl@0
   965
		    &objPtr) != TCL_OK) {
sl@0
   966
		Tcl_DecrRefCount(listPtr);
sl@0
   967
		goto end;
sl@0
   968
	    }
sl@0
   969
	    Tcl_ListObjAppendElement(interp, listPtr, objPtr);
sl@0
   970
	}
sl@0
   971
    	Tcl_SetObjResult(interp, listPtr);
sl@0
   972
    } else if (objc == 1) {
sl@0
   973
	/*
sl@0
   974
	 * Get one attribute.
sl@0
   975
	 */
sl@0
   976
sl@0
   977
	int index;
sl@0
   978
	Tcl_Obj *objPtr = NULL;
sl@0
   979
sl@0
   980
	if (numObjStrings == 0) {
sl@0
   981
	    Tcl_AppendResult(interp, "bad option \"",
sl@0
   982
		    Tcl_GetString(objv[0]), "\", there are no file attributes"
sl@0
   983
			     " in this filesystem.", (char *) NULL);
sl@0
   984
	    goto end;
sl@0
   985
	}
sl@0
   986
sl@0
   987
	if (Tcl_GetIndexFromObj(interp, objv[0], attributeStrings,
sl@0
   988
		"option", 0, &index) != TCL_OK) {
sl@0
   989
	    goto end;
sl@0
   990
	}
sl@0
   991
	if (Tcl_FSFileAttrsGet(interp, index, filePtr,
sl@0
   992
		&objPtr) != TCL_OK) {
sl@0
   993
	    goto end;
sl@0
   994
	}
sl@0
   995
	Tcl_SetObjResult(interp, objPtr);
sl@0
   996
    } else {
sl@0
   997
	/*
sl@0
   998
	 * Set option/value pairs.
sl@0
   999
	 */
sl@0
  1000
sl@0
  1001
	int i, index;
sl@0
  1002
        
sl@0
  1003
	if (numObjStrings == 0) {
sl@0
  1004
	    Tcl_AppendResult(interp, "bad option \"",
sl@0
  1005
		    Tcl_GetString(objv[0]), "\", there are no file attributes"
sl@0
  1006
			     " in this filesystem.", (char *) NULL);
sl@0
  1007
	    goto end;
sl@0
  1008
	}
sl@0
  1009
sl@0
  1010
    	for (i = 0; i < objc ; i += 2) {
sl@0
  1011
    	    if (Tcl_GetIndexFromObj(interp, objv[i], attributeStrings,
sl@0
  1012
		    "option", 0, &index) != TCL_OK) {
sl@0
  1013
		goto end;
sl@0
  1014
    	    }
sl@0
  1015
	    if (i + 1 == objc) {
sl@0
  1016
		Tcl_AppendResult(interp, "value for \"",
sl@0
  1017
			Tcl_GetString(objv[i]), "\" missing",
sl@0
  1018
			(char *) NULL);
sl@0
  1019
		goto end;
sl@0
  1020
	    }
sl@0
  1021
    	    if (Tcl_FSFileAttrsSet(interp, index, filePtr,
sl@0
  1022
    	    	    objv[i + 1]) != TCL_OK) {
sl@0
  1023
		goto end;
sl@0
  1024
    	    }
sl@0
  1025
    	}
sl@0
  1026
    }
sl@0
  1027
    result = TCL_OK;
sl@0
  1028
sl@0
  1029
    end:
sl@0
  1030
    if (numObjStrings != -1) {
sl@0
  1031
	/* Free up the array we allocated */
sl@0
  1032
	ckfree((char*)attributeStrings);
sl@0
  1033
	/* 
sl@0
  1034
	 * We don't need this object that was passed to us
sl@0
  1035
	 * any more.
sl@0
  1036
	 */
sl@0
  1037
	if (objStrings != NULL) {
sl@0
  1038
	    Tcl_DecrRefCount(objStrings);
sl@0
  1039
	}
sl@0
  1040
    }
sl@0
  1041
    return result;
sl@0
  1042
}