usr.bin/ncplogin/ncplogin.c

   1 /*
   2  * Copyright (c) 1999, Boris Popov
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *    This product includes software developed by Boris Popov.
  16  * 4. Neither the name of the author nor the names of any co-contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * $FreeBSD: src/usr.bin/ncplogin/ncplogin.c,v 1.1 1999/10/31 02:14:59 bp Exp $
  33  * $DragonFly: src/usr.bin/ncplogin/ncplogin.c,v 1.5 2008/07/10 18:29:52 swildner Exp $
  34  */
  35 #include <sys/types.h>
  36 #include <sys/errno.h>
  37 #include <sys/stat.h>
  38 #include <err.h>
  39 #include <stdio.h>
  40 #include <unistd.h>
  41 #include <strings.h>
  42 #include <stdlib.h>
  43 #include <sysexits.h>
  44
  45 #include <netncp/ncp_lib.h>
  46 #include <netncp/ncp_rcfile.h>
  47
  48 extern char *__progname;
  49
  50 static void
  51 login_usage(void) {
  52         printf("usage: %s [-Dh] [-A host] [-BCN] [-I level] [-M mode] \n"
  53                "       [-R retrycount] [-W timeout] /server:user\n", __progname);
  54         exit(1);
  55 }
  56
  57 static void
  58 logout_usage(void) {
  59         printf("usage: %s [-c handle] [-h] [/server:user]\n", __progname);
  60         exit(1);
  61 }
  62
  63 static void
  64 login(int argc, char *argv[], struct ncp_conn_loginfo *li) {
  65         int error = 0, connid, opt, setprimary = 0;
  66
  67         while ((opt = getopt(argc, argv, STDPARAM_OPT"D")) != -1){
  68                 switch(opt){
  69                     case STDPARAM_ARGS:
  70                         if (ncp_li_arg(li, opt, optarg))
  71                                 exit(1);
  72                         break;
  73                     case 'D':
  74                         setprimary = 1;
  75                         break;
  76                     default:
  77                         login_usage();
  78                         /*NOTREACHED*/
  79                 }
  80         }
  81         if (li->access_mode == 0)
  82                 li->access_mode = S_IRWXU;
  83         if (ncp_li_check(li))
  84                 exit(1);
  85         li->opt |= NCP_OPT_WDOG | NCP_OPT_PERMANENT;
  86         /* now we can try to login, or use already established connection */
  87         error = ncp_li_login(li, &connid);
  88         if (error) {
  89                 ncp_error("Could not login to server %s", error, li->server);
  90                 exit(1);
  91         }
  92         error = ncp_setpermanent(connid, 1);
  93         if (error && errno != EACCES){
  94                 ncp_error("Can't make connection permanent", error);
  95                 exit(1);
  96         }
  97         if (setprimary && ncp_setprimary(connid, 1) != 0)
  98                 ncp_error("Warning: can't make connection primary", errno);
  99         printf("Logged in with conn handle:%d\n", connid);
 100         return;
 101 }
 102
 103 static void
 104 logout(int argc, char *argv[], struct ncp_conn_loginfo *li) {
 105         int error = 0, connid, opt;
 106
 107         connid = -1;
 108         while ((opt = getopt(argc, argv, STDPARAM_OPT"c:")) != -1){
 109                 switch (opt) {
 110                     case 'c':
 111                         connid = atoi(optarg);
 112                         break;
 113                     case STDPARAM_ARGS:
 114                         if (ncp_li_arg(li, opt, optarg))
 115                                 exit(1);
 116                         break;
 117                     default:
 118                         logout_usage();
 119                         /*NOTREACHED*/
 120                 }
 121         }
 122         if (connid == -1) {
 123                 if (li->server[0] == 0)
 124                         errx(EX_USAGE, "no server name specified");
 125                 if (li->user == 0)
 126                         errx(EX_USAGE, "no user name specified");
 127                 if (ncp_conn_scan(li, &connid))
 128                         errx(EX_OSERR, "You are not attached to server %s",
 129                              li->server);
 130         }
 131         if (ncp_setpermanent(connid, 0) < 0 && errno != EACCES) {
 132                 ncp_error("Connection isn't valid", errno);
 133                 exit(EX_OSERR);
 134         }
 135         error = ncp_disconnect(connid);
 136         if (error) {
 137                 if (errno == EACCES) {
 138                         warnx("you logged out, but connection belongs"
 139                               "to other user and not closed");
 140                 } else {
 141                         ncp_error("Can't logout with connid %d", error, connid);
 142                         error = 1;
 143                 }
 144         }
 145         exit(error ? 1 : 0);
 146 }
 147
 148 int
 149 main(int argc, char *argv[]) {
 150         int islogin, error;
 151         char *p, *p1;
 152         struct ncp_conn_loginfo li;
 153
 154         islogin = strcmp(__progname, "ncplogin") == 0;
 155
 156         if (argc == 2) {
 157                 if (strcmp(argv[1], "-h") == 0) {
 158                         if (islogin)
 159                                 login_usage();
 160                         else
 161                                 logout_usage();
 162                 }
 163         }
 164
 165         if (ncp_initlib())
 166                 exit(1);
 167         if (ncp_li_init(&li, argc, argv))
 168                 return 1;
 169
 170         if (argc >= 2 && argv[argc - 1][0] == '/') {
 171                 p = argv[argc - 1];
 172                 error = 1;
 173                 do {
 174                         if (*p++ != '/')
 175                                 break;
 176                         p1 = strchr(p, ':');
 177                         if (p1 == NULL)
 178                                 break;
 179                         *p1++ = 0;
 180                         if (ncp_li_setserver(&li, p))
 181                                 break;
 182                         if (*p1 == 0)
 183                                 break;
 184                         if (ncp_li_setuser(&li, p1)) break;
 185                         error = 0;
 186                 } while(0);
 187                 if (error)
 188                         errx(EX_DATAERR,
 189                             "an error occurred while parsing '%s'",
 190                             argv[argc - 1]);
 191         }
 192
 193         if (ncp_li_readrc(&li))
 194                 return 1;
 195         if (ncp_rc)
 196                 rc_close(ncp_rc);
 197         if (islogin)
 198                 login(argc, argv, &li);
 199         else
 200                 logout(argc, argv, &li);
 201         return 0;
 202 }