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markom |
/*
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* pkgb.c --
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*
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* This file contains a simple Tcl package "pkgb" that is intended
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* for testing the Tcl dynamic loading facilities. It can be used
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* in both safe and unsafe interpreters.
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*
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* Copyright (c) 1995 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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* SCCS: @(#) pkgb.c 1.4 96/02/15 12:30:34
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*/
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#include "tcl.h"
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/*
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* Prototypes for procedures defined later in this file:
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*/
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static int Pkgb_SubCmd _ANSI_ARGS_((ClientData clientData,
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Tcl_Interp *interp, int argc, char **argv));
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static int Pkgb_UnsafeCmd _ANSI_ARGS_((ClientData clientData,
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Tcl_Interp *interp, int argc, char **argv));
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/*
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*----------------------------------------------------------------------
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*
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* Pkgb_SubCmd --
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*
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* This procedure is invoked to process the "pkgb_sub" Tcl command.
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* It expects two arguments and returns their difference.
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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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static int
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Pkgb_SubCmd(dummy, interp, argc, argv)
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ClientData dummy; /* Not used. */
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Tcl_Interp *interp; /* Current interpreter. */
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int argc; /* Number of arguments. */
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char **argv; /* Argument strings. */
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{
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int first, second;
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if (argc != 3) {
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Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
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" num num\"", (char *) NULL);
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return TCL_ERROR;
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}
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if ((Tcl_GetInt(interp, argv[1], &first) != TCL_OK)
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|| (Tcl_GetInt(interp, argv[2], &second) != TCL_OK)) {
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return TCL_ERROR;
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}
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sprintf(interp->result, "%d", first - second);
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return TCL_OK;
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}
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/*
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*----------------------------------------------------------------------
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*
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* Pkgb_UnsafeCmd --
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*
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* This procedure is invoked to process the "pkgb_unsafe" Tcl command.
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* It just returns a constant string.
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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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static int
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Pkgb_UnsafeCmd(dummy, interp, argc, argv)
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ClientData dummy; /* Not used. */
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Tcl_Interp *interp; /* Current interpreter. */
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int argc; /* Number of arguments. */
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char **argv; /* Argument strings. */
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{
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interp->result = "unsafe command invoked";
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return TCL_OK;
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}
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/*
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*----------------------------------------------------------------------
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*
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* Pkgb_Init --
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*
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* This is a package initialization procedure, which is called
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* by Tcl when this package is to be added to an interpreter.
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*
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* Results:
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* None.
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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int
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Pkgb_Init(interp)
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Tcl_Interp *interp; /* Interpreter in which the package is
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* to be made available. */
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{
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int code;
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code = Tcl_PkgProvide(interp, "Pkgb", "2.3");
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if (code != TCL_OK) {
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return code;
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}
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Tcl_CreateCommand(interp, "pkgb_sub", Pkgb_SubCmd, (ClientData) 0,
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(Tcl_CmdDeleteProc *) NULL);
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Tcl_CreateCommand(interp, "pkgb_unsafe", Pkgb_UnsafeCmd, (ClientData) 0,
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(Tcl_CmdDeleteProc *) NULL);
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return TCL_OK;
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}
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/*
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*----------------------------------------------------------------------
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*
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* Pkgb_SafeInit --
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*
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* This is a package initialization procedure, which is called
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* by Tcl when this package is to be added to an unsafe interpreter.
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*
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* Results:
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* None.
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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int
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Pkgb_SafeInit(interp)
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Tcl_Interp *interp; /* Interpreter in which the package is
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* to be made available. */
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{
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Tcl_CreateCommand(interp, "pkgb_sub", Pkgb_SubCmd, (ClientData) 0,
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(Tcl_CmdDeleteProc *) NULL);
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return TCL_OK;
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}
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