/* 
 * tclAppInit.c --
 *
 *	Provides a default version of the main program and Tcl_AppInit
 *	procedure for Tcl applications (without Tk).
 *
 * Copyright (c) 1993 The Regents of the University of California.
 * Copyright (c) 1994-1997 Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * RCS: @(#) $Id: tclAppInit.c,v 1.4 1999/02/03 02:58:26 stanton Exp $
 */

/* ========================================================================
 * Copyright 2006 University of Washington
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * ========================================================================
 */

#ifdef TCL_XT_TEST
#include <X11/Intrinsic.h>
#endif

#include "tcl.h"

/********** (start mihodge) *************************************/
#include "wp_uidmapper_lib.h"
#include <errno.h>
#include <stdlib.h> /* getenv */
/********** (end mihodge) *************************************/

/*
 * The following variable is a special hack that is needed in order for
 * Sun shared libraries to be used for Tcl.
 */

extern int matherr();
int *tclDummyMathPtr = (int *) matherr;


#ifdef TCL_TEST
extern int		Procbodytest_Init _ANSI_ARGS_((Tcl_Interp *interp));
extern int		Procbodytest_SafeInit _ANSI_ARGS_((Tcl_Interp *interp));
extern int		TclObjTest_Init _ANSI_ARGS_((Tcl_Interp *interp));
extern int		Tcltest_Init _ANSI_ARGS_((Tcl_Interp *interp));
#endif /* TCL_TEST */
#ifdef TCL_XT_TEST
extern int		Tclxttest_Init _ANSI_ARGS_((Tcl_Interp *interp));
#endif

/*
 *----------------------------------------------------------------------
 *
 * main --
 *
 *	This is the main program for the application.
 *
 * Results:
 *	None: Tcl_Main never returns here, so this procedure never
 *	returns either.
 *
 * Side effects:
 *	Whatever the application does.
 *
 *----------------------------------------------------------------------
 */

int
main(argc, argv)
    int argc;			/* Number of command-line arguments. */
    char **argv;		/* Values of command-line arguments. */
{
  /********** PUBCOOKIE-Specific Inclusion **************************/
  char *user,sessid[WP_BUF_SIZE],*cookie;
  int uid;
  unsigned key[WP_KEY_LEN];

  memset((void *) key, 0, sizeof(unsigned int) * WP_KEY_LEN);
  sessid[0] = '\0';
  user = getenv("REMOTE_USER");
  if(!((((cookie = getenv("QUERY_STRING"))
	 && wp_parse_cookie(cookie,"sessid","&@% ",sessid,WP_BUF_SIZE))
	|| ((cookie = getenv("HTTP_COOKIE"))
	    && wp_parse_cookie(cookie,"sessid",";@ ",sessid,WP_BUF_SIZE)))
       && wp_sessid2key(sessid,key)))
    cookie = NULL;

  if((getuid() == WEBSERVER_UID) && (user || cookie)){
    if(wp_uidmapper_getuid(user ? user : "",key,&uid) == -1) {
      fprintf(stderr,"wp_uidmapper_getname(%s,%s) failed\n",user ? user : "",sessid);
      return 1;
    } else if(setuid(uid)) {
      fprintf(stderr,"setuid(%i) failed: %s\n",uid,strerror(errno));
      return 1;
    }
  } else {
    setuid(getuid());
  }
  /********** (end PUBCOOKIE) *************************************/
  
#ifdef TCL_XT_TEST
    XtToolkitInitialize();
#endif
    Tcl_Main(argc, argv, Tcl_AppInit);
    return 0;			/* Needed only to prevent compiler warning. */
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_AppInit --
 *
 *	This procedure performs application-specific initialization.
 *	Most applications, especially those that incorporate additional
 *	packages, will have their own version of this procedure.
 *
 * Results:
 *	Returns a standard Tcl completion code, and leaves an error
 *	message in Tcl_GetStringResult(interp) if an error occurs.
 *
 * Side effects:
 *	Depends on the startup script.
 *
 *----------------------------------------------------------------------
 */

int
Tcl_AppInit(interp)
    Tcl_Interp *interp;		/* Interpreter for application. */
{
    if (Tcl_Init(interp) == TCL_ERROR) {
	return TCL_ERROR;
    }

#ifdef TCL_TEST
#ifdef TCL_XT_TEST
     if (Tclxttest_Init(interp) == TCL_ERROR) {
	 return TCL_ERROR;
     }
#endif
    if (Tcltest_Init(interp) == TCL_ERROR) {
	return TCL_ERROR;
    }
    Tcl_StaticPackage(interp, "Tcltest", Tcltest_Init,
            (Tcl_PackageInitProc *) NULL);
    if (TclObjTest_Init(interp) == TCL_ERROR) {
	return TCL_ERROR;
    }
    if (Procbodytest_Init(interp) == TCL_ERROR) {
	return TCL_ERROR;
    }
    Tcl_StaticPackage(interp, "procbodytest", Procbodytest_Init,
            Procbodytest_SafeInit);
#endif /* TCL_TEST */

    /*
     * Call the init procedures for included packages.  Each call should
     * look like this:
     *
     * if (Mod_Init(interp) == TCL_ERROR) {
     *     return TCL_ERROR;
     * }
     *
     * where "Mod" is the name of the module.
     */

    /*
     * Call Tcl_CreateCommand for application-specific commands, if
     * they weren't already created by the init procedures called above.
     */

    /*
     * Specify a user-specific startup file to invoke if the application
     * is run interactively.  Typically the startup file is "~/.apprc"
     * where "app" is the name of the application.  If this line is deleted
     * then no user-specific startup file will be run under any conditions.
     */

    Tcl_SetVar(interp, "tcl_rcFileName", "~/.tclshrc", TCL_GLOBAL_ONLY);
    return TCL_OK;
}
