text: /*
   * Copyright (c) 1999, Boris Popov
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *    This product includes software developed by Boris Popov.
   * 4. Neither the name of the author nor the names of any co-contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   */
  
  #include <sys/cdefs.h>
  
  __FBSDID("$FreeBSD: src/usr.bin/ncplogin/ncplogin.c,v 1.4 2002/09/04 23:29:04 dwmalone Exp $");
  
  #include <sys/types.h>
  #include <sys/errno.h>
  #include <sys/stat.h>
  
  #include <err.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <stdlib.h>
  #include <string.h>
  #include <sysexits.h>
  #include <unistd.h>
  
  #include <netncp/ncp_lib.h>
  #include <netncp/ncp_rcfile.h>
  
  extern char *__progname;
  
  static void
  login_usage(void) {
  	printf("usage: %s [-Dh] [-A host] [-BCN] [-I level] [-M mode] \n"
  	       "       [-R retrycount] [-W timeout] /server:user\n", __progname);
  	exit(1);
  }
  
  static void
  logout_usage(void) {
  	printf("usage: %s [-c handle] [-h] [/server:user]\n", __progname);
  	exit(1);
  }
  
  static void
  login(int argc, char *argv[], struct ncp_conn_loginfo *li) {
  	int error = 0, connid, opt, setprimary = 0;
  
  	while ((opt = getopt(argc, argv, STDPARAM_OPT"D")) != EOF){
  		switch(opt){
  		    case STDPARAM_ARGS:
  			if (ncp_li_arg(li, opt, optarg))	
  				exit(1);
  			break;
  		    case 'D':
  			setprimary = 1;
  			break;
  		    default:
  			login_usage();
  			/*NOTREACHED*/
  		}
  	}
  	if (li->access_mode == 0)
  		li->access_mode = S_IRWXU;
  	if (ncp_li_check(li))
  		exit(1);
  	li->opt |= NCP_OPT_WDOG | NCP_OPT_PERMANENT;
  	/* now we can try to login, or use already established connection */
  	error = ncp_li_login(li, &connid);
  	if (error) {
  		ncp_error("Could not login to server %s", error, li->server);
  		exit(1);
  	}
  	error = ncp_setpermanent(connid, 1);
  	if (error && errno != EACCES){
  		ncp_error("Can't make connection permanent", error);
  		exit(1);
  	}
  	if (setprimary && ncp_setprimary(connid, 1) != 0)
  		ncp_error("Warning: can't make connection primary", errno);
  	printf("Logged in with conn handle:%d\n", connid);
  	return;
  }
  
  static void
  logout(int argc, char *argv[], struct ncp_conn_loginfo *li) {
  	int error = 0, connid, opt;
  
  	connid = -1;
  	while ((opt = getopt(argc, argv, STDPARAM_OPT"c:")) != EOF){
  		switch (opt) {
  		    case 'c':
  			connid = atoi(optarg);
  			break;
  		    case STDPARAM_ARGS:
  			if (ncp_li_arg(li, opt, optarg))
  				exit(1);
  			break;
  		    default:
  			logout_usage();
  			/*NOTREACHED*/
  		}
  	}
  	if (connid == -1) {
  		if (li->server[0] == 0)
  			errx(EX_USAGE, "no server name specified");
  		if (li->user == 0) 
  			errx(EX_USAGE, "no user name specified");
  		if (ncp_conn_scan(li, &connid))
  			errx(EX_OSERR, "You are not attached to server %s",
  			     li->server);
  	}
  	if (ncp_setpermanent(connid, 0) < 0 && errno != EACCES) {
  		ncp_error("Connection isn't valid", errno);
  		exit(EX_OSERR);
  	}
          error = ncp_disconnect(connid);
  	if (error) {
  		if (errno == EACCES) {
  			warnx("you logged out, but connection belongs"
  			      "to other user and not closed");
  		} else {
  			ncp_error("Can't logout with connid %d", error, connid);
  			error = 1;
  		}
  	}
  	exit(error ? 1 : 0);
  }
  
  int
  main(int argc, char *argv[]) {
  	int islogin, error;
  	char *p, *p1;
  	struct ncp_conn_loginfo li;
  
  	islogin = strcmp(__progname, "ncplogin") == 0;
  
  	if (argc == 2) {
  		if (strcmp(argv[1], "-h") == 0) {
  			if (islogin)
  				login_usage();
  			else
  				logout_usage();
  		}
  	}
  
  	if (ncp_initlib())
  		exit(1);
  	if (ncp_li_init(&li, argc, argv))
  		return 1;
  
  	if (argc >= 2 && argv[argc - 1][0] == '/') {
  		p = argv[argc - 1];
  		error = 1;
  		do {
  			if (*p++ != '/')
  				break;
  			p1 = strchr(p, ':');
  			if (p1 == NULL)
  				break;
  			*p1++ = 0;
  			if (ncp_li_setserver(&li, p))
  				break;
  			if (*p1 == 0)
  				break;
  			if (ncp_li_setuser(&li, p1)) break;
  			error = 0;
  		} while(0);
  		if (error)
  			errx(EX_DATAERR, 
  			    "an error occured while parsing '%s'",
  			    argv[argc - 1]);
  	}
  
  	if (ncp_li_readrc(&li))
  		return 1;
  	if (ncp_rc)
  		rc_close(ncp_rc);
  	if (islogin)
  		login(argc, argv, &li);
  	else
  		logout(argc, argv, &li);
  	return 0;
  }
  