import HEAD into svn+ssh://svn.samba.org/home/svn/samba/trunk
[metze/old/v3-2-winbind-ndr.git] / source / utils / net.c
1 /* 
2    Samba Unix/Linux SMB client library 
3    Distributed SMB/CIFS Server Management Utility 
4    Copyright (C) 2001 Steve French  (sfrench@us.ibm.com)
5    Copyright (C) 2001 Jim McDonough (jmcd@us.ibm.com)
6    Copyright (C) 2001 Andrew Tridgell (tridge@samba.org)
7    Copyright (C) 2001 Andrew Bartlett (abartlet@samba.org)
8
9    Originally written by Steve and Jim. Largely rewritten by tridge in
10    November 2001.
11
12    Reworked again by abartlet in December 2001
13
14    This program is free software; you can redistribute it and/or modify
15    it under the terms of the GNU General Public License as published by
16    the Free Software Foundation; either version 2 of the License, or
17    (at your option) any later version.
18    
19    This program is distributed in the hope that it will be useful,
20    but WITHOUT ANY WARRANTY; without even the implied warranty of
21    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
22    GNU General Public License for more details.
23    
24    You should have received a copy of the GNU General Public License
25    along with this program; if not, write to the Free Software
26    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
27  
28 /*****************************************************/
29 /*                                                   */
30 /*   Distributed SMB/CIFS Server Management Utility  */
31 /*                                                   */
32 /*   The intent was to make the syntax similar       */
33 /*   to the NET utility (first developed in DOS      */
34 /*   with additional interesting & useful functions  */
35 /*   added in later SMB server network operating     */
36 /*   systems).                                       */
37 /*                                                   */
38 /*****************************************************/
39
40 #include "includes.h"
41 #include "../utils/net.h"
42
43 /***********************************************************************/
44 /* Beginning of internationalization section.  Translatable constants  */
45 /* should be kept in this area and referenced in the rest of the code. */
46 /*                                                                     */
47 /* No functions, outside of Samba or LSB (Linux Standards Base) should */
48 /* be used (if possible).                                              */
49 /***********************************************************************/
50
51 #define YES_STRING              "Yes"
52 #define NO_STRING               "No"
53
54 /************************************************************************************/
55 /*                       end of internationalization section                        */
56 /************************************************************************************/
57
58 /* Yes, these buggers are globals.... */
59 const char *opt_requester_name = NULL;
60 const char *opt_host = NULL; 
61 const char *opt_password = NULL;
62 const char *opt_user_name = NULL;
63 BOOL opt_user_specified = False;
64 const char *opt_workgroup = NULL;
65 int opt_long_list_entries = 0;
66 int opt_reboot = 0;
67 int opt_force = 0;
68 int opt_port = 0;
69 int opt_maxusers = -1;
70 const char *opt_comment = "";
71 const char *opt_container = "cn=Users";
72 int opt_flags = -1;
73 int opt_timeout = 0;
74 const char *opt_target_workgroup = NULL;
75 int opt_machine_pass = 0;
76 BOOL opt_localgroup = False;
77 BOOL opt_domaingroup = False;
78 const char *opt_newntname = "";
79 int opt_rid = 0;
80
81 BOOL opt_have_ip = False;
82 struct in_addr opt_dest_ip;
83
84 extern BOOL AllowDebugChange;
85
86 uint32 get_sec_channel_type(const char *param) 
87 {
88         if (!(param && *param)) {
89                 return get_default_sec_channel();
90         } else {
91                 if (strequal(param, "PDC")) {
92                         return SEC_CHAN_BDC;
93                 } else if (strequal(param, "BDC")) {
94                         return SEC_CHAN_BDC;
95                 } else if (strequal(param, "MEMBER")) {
96                         return SEC_CHAN_WKSTA;
97 #if 0                   
98                 } else if (strequal(param, "DOMAIN")) {
99                         return SEC_CHAN_DOMAIN;
100 #endif
101                 } else {
102                         return get_default_sec_channel();
103                 }
104         }
105 }
106
107 /*
108   run a function from a function table. If not found then
109   call the specified usage function 
110 */
111 int net_run_function(int argc, const char **argv, struct functable *table, 
112                      int (*usage_fn)(int argc, const char **argv))
113 {
114         int i;
115         
116         if (argc < 1) {
117                 d_printf("\nUsage: \n");
118                 return usage_fn(argc, argv);
119         }
120         for (i=0; table[i].funcname; i++) {
121                 if (StrCaseCmp(argv[0], table[i].funcname) == 0)
122                         return table[i].fn(argc-1, argv+1);
123         }
124         d_printf("No command: %s\n", argv[0]);
125         return usage_fn(argc, argv);
126 }
127
128
129 /****************************************************************************
130 connect to \\server\ipc$  
131 ****************************************************************************/
132 NTSTATUS connect_to_ipc(struct cli_state **c, struct in_addr *server_ip,
133                                         const char *server_name)
134 {
135         NTSTATUS nt_status;
136
137         if (!opt_password && !opt_machine_pass) {
138                 char *pass = getpass("Password:");
139                 if (pass) {
140                         opt_password = strdup(pass);
141                 }
142         }
143         
144         nt_status = cli_full_connection(c, opt_requester_name, server_name, 
145                                         server_ip, opt_port,
146                                         "IPC$", "IPC",  
147                                         opt_user_name, opt_workgroup,
148                                         opt_password, 0, Undefined, NULL);
149         
150         if (NT_STATUS_IS_OK(nt_status)) {
151                 return nt_status;
152         } else {
153                 d_printf("Could not connect to server %s\n", server_name);
154
155                 /* Display a nicer message depending on the result */
156
157                 if (NT_STATUS_V(nt_status) == 
158                     NT_STATUS_V(NT_STATUS_LOGON_FAILURE))
159                         d_printf("The username or password was not correct.\n");
160
161                 if (NT_STATUS_V(nt_status) == 
162                     NT_STATUS_V(NT_STATUS_ACCOUNT_LOCKED_OUT))
163                         d_printf("The account was locked out.\n");
164
165                 if (NT_STATUS_V(nt_status) == 
166                     NT_STATUS_V(NT_STATUS_ACCOUNT_DISABLED))
167                         d_printf("The account was disabled.\n");
168
169                 return nt_status;
170         }
171 }
172
173 /****************************************************************************
174 connect to \\server\ipc$ anonymously
175 ****************************************************************************/
176 NTSTATUS connect_to_ipc_anonymous(struct cli_state **c,
177                         struct in_addr *server_ip, const char *server_name)
178 {
179         NTSTATUS nt_status;
180
181         nt_status = cli_full_connection(c, opt_requester_name, server_name, 
182                                         server_ip, opt_port,
183                                         "IPC$", "IPC",  
184                                         "", "",
185                                         "", 0, Undefined, NULL);
186         
187         if (NT_STATUS_IS_OK(nt_status)) {
188                 return nt_status;
189         } else {
190                 DEBUG(1,("Cannot connect to server (anonymously).  Error was %s\n", nt_errstr(nt_status)));
191                 return nt_status;
192         }
193 }
194
195 /****************************************************************************
196  Use the local machine's password for this session
197 ****************************************************************************/
198 int net_use_machine_password(void) 
199 {
200         char *user_name = NULL;
201
202         if (!secrets_init()) {
203                 d_printf("ERROR: Unable to open secrets database\n");
204                 exit(1);
205         }
206
207         user_name = NULL;
208         opt_password = secrets_fetch_machine_password(opt_target_workgroup, NULL, NULL);
209         if (asprintf(&user_name, "%s$@%s", global_myname(), lp_realm()) == -1) {
210                 return -1;
211         }
212         opt_user_name = user_name;
213         return 0;
214 }
215
216 BOOL net_find_server(unsigned flags, struct in_addr *server_ip, char **server_name)
217 {
218
219         if (opt_host) {
220                 *server_name = strdup(opt_host);
221         }               
222
223         if (opt_have_ip) {
224                 *server_ip = opt_dest_ip;
225                 if (!*server_name) {
226                         *server_name = strdup(inet_ntoa(opt_dest_ip));
227                 }
228         } else if (*server_name) {
229                 /* resolve the IP address */
230                 if (!resolve_name(*server_name, server_ip, 0x20))  {
231                         DEBUG(1,("Unable to resolve server name\n"));
232                         return False;
233                 }
234         } else if (flags & NET_FLAGS_PDC) {
235                 struct in_addr pdc_ip;
236
237                 if (get_pdc_ip(opt_target_workgroup, &pdc_ip)) {
238                         fstring dc_name;
239                         
240                         if (is_zero_ip(pdc_ip))
241                                 return False;
242                         
243                         if ( !name_status_find(opt_target_workgroup, 0x1b, 0x20, pdc_ip, dc_name) )
244                                 return False;
245                                 
246                         *server_name = strdup(dc_name);
247                         *server_ip = pdc_ip;
248                 }
249                 
250         } else if (flags & NET_FLAGS_DMB) {
251                 struct in_addr msbrow_ip;
252                 /*  if (!resolve_name(MSBROWSE, &msbrow_ip, 1)) */
253                 if (!resolve_name(opt_target_workgroup, &msbrow_ip, 0x1B))  {
254                         DEBUG(1,("Unable to resolve domain browser via name lookup\n"));
255                         return False;
256                 } else {
257                         *server_ip = msbrow_ip;
258                 }
259                 *server_name = strdup(inet_ntoa(opt_dest_ip));
260         } else if (flags & NET_FLAGS_MASTER) {
261                 struct in_addr brow_ips;
262                 if (!resolve_name(opt_target_workgroup, &brow_ips, 0x1D))  {
263                                 /* go looking for workgroups */
264                         DEBUG(1,("Unable to resolve master browser via name lookup\n"));
265                         return False;
266                 } else {
267                         *server_ip = brow_ips;
268                 }
269                 *server_name = strdup(inet_ntoa(opt_dest_ip));
270         } else if (!(flags & NET_FLAGS_LOCALHOST_DEFAULT_INSANE)) {
271                 extern struct in_addr loopback_ip;
272                 *server_ip = loopback_ip;
273                 *server_name = strdup("127.0.0.1");
274         }
275
276         if (!server_name || !*server_name) {
277                 DEBUG(1,("no server to connect to\n"));
278                 return False;
279         }
280
281         return True;
282 }
283
284
285 BOOL net_find_pdc(struct in_addr *server_ip, fstring server_name, const char *domain_name)
286 {
287         if (get_pdc_ip(domain_name, server_ip)) {
288                 if (is_zero_ip(*server_ip))
289                         return False;
290                 
291                 if (!name_status_find(domain_name, 0x1b, 0x20, *server_ip, server_name))
292                         return False;
293                         
294                 return True;    
295         } 
296         else
297                 return False;
298 }
299
300
301 struct cli_state *net_make_ipc_connection(unsigned flags)
302 {
303         char *server_name = NULL;
304         struct in_addr server_ip;
305         struct cli_state *cli = NULL;
306         NTSTATUS nt_status;
307
308         if (!net_find_server(flags, &server_ip, &server_name)) {
309                 d_printf("\nUnable to find a suitable server\n");
310                 return NULL;
311         }
312
313         if (flags & NET_FLAGS_ANONYMOUS) {
314                 nt_status = connect_to_ipc_anonymous(&cli, &server_ip, server_name);
315         } else {
316                 nt_status = connect_to_ipc(&cli, &server_ip, server_name);
317         }
318
319         SAFE_FREE(server_name);
320         if (NT_STATUS_IS_OK(nt_status)) {
321                 return cli;
322         } else {
323                 return NULL;
324         }
325 }
326
327 static int net_user(int argc, const char **argv)
328 {
329         if (net_ads_check() == 0)
330                 return net_ads_user(argc, argv);
331
332         /* if server is not specified, default to PDC? */
333         if (net_rpc_check(NET_FLAGS_PDC))
334                 return net_rpc_user(argc, argv);
335
336         return net_rap_user(argc, argv);
337 }
338
339 static int net_group(int argc, const char **argv)
340 {
341         if (net_ads_check() == 0)
342                 return net_ads_group(argc, argv);
343
344         if (argc == 0 && net_rpc_check(NET_FLAGS_PDC))
345                 return net_rpc_group(argc, argv);
346
347         return net_rap_group(argc, argv);
348 }
349
350 static int net_join(int argc, const char **argv)
351 {
352         if (net_ads_check() == 0) {
353                 if (net_ads_join(argc, argv) == 0)
354                         return 0;
355                 else
356                         d_printf("ADS join did not work, falling back to RPC...\n");
357         }
358         return net_rpc_join(argc, argv);
359 }
360
361 static int net_changetrustpw(int argc, const char **argv)
362 {
363         if (net_ads_check() == 0)
364                 return net_ads_changetrustpw(argc, argv);
365
366         return net_rpc_changetrustpw(argc, argv);
367 }
368
369 static int net_changesecretpw(int argc, const char **argv)
370 {
371         char *trust_pw;
372         uint32 sec_channel_type = SEC_CHAN_WKSTA;
373
374         if(opt_force) {
375                 trust_pw = getpass("Enter machine password: ");
376
377                 if (!secrets_store_machine_password(trust_pw, lp_workgroup(), sec_channel_type)) {
378                             d_printf("Unable to write the machine account password in the secrets database");
379                             return 1;
380                 }
381                 else {
382                     d_printf("Modified trust account password in secrets database\n");
383                 }
384         }
385         else {
386                 d_printf("Machine account password change requires the -f flag.\n");
387                 d_printf("Do NOT use this function unless you know what it does!\n");
388                 d_printf("This function will change the ADS Domain member machine account password in the secrets.tdb file!\n");
389         }
390
391         return 0;
392 }
393
394 static int net_share(int argc, const char **argv)
395 {
396         if (net_rpc_check(0))
397                 return net_rpc_share(argc, argv);
398         return net_rap_share(argc, argv);
399 }
400
401 static int net_file(int argc, const char **argv)
402 {
403         if (net_rpc_check(0))
404                 return net_rpc_file(argc, argv);
405         return net_rap_file(argc, argv);
406 }
407
408 /*
409  Retrieve our local SID or the SID for the specified name
410  */
411 static int net_getlocalsid(int argc, const char **argv)
412 {
413         DOM_SID sid;
414         const char *name;
415         fstring sid_str;
416
417         if (argc >= 1) {
418                 name = argv[0];
419         }
420         else {
421                 name = global_myname();
422         }
423
424         if(!initialize_password_db(False)) {
425                 DEBUG(0, ("WARNING: Could not open passdb - local sid may not reflect passdb\n"
426                           "backend knowlege (such as the sid stored in LDAP)\n"));
427         }
428
429         /* Generate one, if it doesn't exist */
430         get_global_sam_sid();
431
432         if (!secrets_fetch_domain_sid(name, &sid)) {
433                 DEBUG(0, ("Can't fetch domain SID for name: %s\n", name));      
434                 return 1;
435         }
436         sid_to_string(sid_str, &sid);
437         d_printf("SID for domain %s is: %s\n", name, sid_str);
438         return 0;
439 }
440
441 static int net_setlocalsid(int argc, const char **argv)
442 {
443         DOM_SID sid;
444
445         if ( (argc != 1)
446              || (strncmp(argv[0], "S-1-5-21-", strlen("S-1-5-21-")) != 0)
447              || (!string_to_sid(&sid, argv[0]))
448              || (sid.num_auths != 4)) {
449                 d_printf("usage: net setlocalsid S-1-5-21-x-y-z\n");
450                 return 1;
451         }
452
453         if (!secrets_store_domain_sid(global_myname(), &sid)) {
454                 DEBUG(0,("Can't store domain SID as a pdc/bdc.\n"));
455                 return 1;
456         }
457
458         return 0;
459 }
460
461 static int net_getdomainsid(int argc, const char **argv)
462 {
463         DOM_SID domain_sid;
464         fstring sid_str;
465
466         if(!initialize_password_db(False)) {
467                 DEBUG(0, ("WARNING: Could not open passdb - domain sid may not reflect passdb\n"
468                           "backend knowlege (such as the sid stored in LDAP)\n"));
469         }
470
471         /* Generate one, if it doesn't exist */
472         get_global_sam_sid();
473
474         if (!secrets_fetch_domain_sid(global_myname(), &domain_sid)) {
475                 d_printf("Could not fetch local SID\n");
476                 return 1;
477         }
478         sid_to_string(sid_str, &domain_sid);
479         d_printf("SID for domain %s is: %s\n", global_myname(), sid_str);
480
481         if (!secrets_fetch_domain_sid(opt_workgroup, &domain_sid)) {
482                 d_printf("Could not fetch domain SID\n");
483                 return 1;
484         }
485
486         sid_to_string(sid_str, &domain_sid);
487         d_printf("SID for domain %s is: %s\n", opt_workgroup, sid_str);
488
489         return 0;
490 }
491
492 #ifdef WITH_FAKE_KASERVER
493
494 int net_afskey_usage(int argc, const char **argv)
495 {
496         d_printf("  net afskey filename\n"
497                  "\tImports a OpenAFS KeyFile into our secrets.tdb\n\n");
498         return -1;
499 }
500
501 static int net_afskey(int argc, const char **argv)
502 {
503         int fd;
504         struct afs_keyfile keyfile;
505
506         if (argc != 2) {
507                 d_printf("usage: 'net afskey <keyfile> cell'\n");
508                 return -1;
509         }
510
511         if (!secrets_init()) {
512                 d_printf("Could not open secrets.tdb\n");
513                 return -1;
514         }
515
516         if ((fd = open(argv[0], O_RDONLY, 0)) < 0) {
517                 d_printf("Could not open %s\n", argv[0]);
518                 return -1;
519         }
520
521         if (read(fd, &keyfile, sizeof(keyfile)) != sizeof(keyfile)) {
522                 d_printf("Could not read keyfile\n");
523                 return -1;
524         }
525
526         if (!secrets_store_afs_keyfile(argv[1], &keyfile)) {
527                 d_printf("Could not write keyfile to secrets.tdb\n");
528                 return -1;
529         }
530
531         return 0;
532 }
533
534 #endif /* WITH_FAKE_KASERVER */
535
536 static uint32 get_maxrid(void)
537 {
538         SAM_ACCOUNT *pwd = NULL;
539         uint32 max_rid = 0;
540         GROUP_MAP *map = NULL;
541         int num_entries = 0;
542         int i;
543
544         if (!pdb_setsampwent(False)) {
545                 DEBUG(0, ("load_sampwd_entries: Unable to open passdb.\n"));
546                 return 0;
547         }
548
549         for (; (NT_STATUS_IS_OK(pdb_init_sam(&pwd))) 
550                      && pdb_getsampwent(pwd) == True; pwd=NULL) {
551                 uint32 rid;
552
553                 if (!sid_peek_rid(pdb_get_user_sid(pwd), &rid)) {
554                         DEBUG(0, ("can't get RID for user '%s'\n",
555                                   pdb_get_username(pwd)));
556                         pdb_free_sam(&pwd);
557                         continue;
558                 }
559
560                 if (rid > max_rid)
561                         max_rid = rid;
562
563                 DEBUG(1,("%d is user '%s'\n", rid, pdb_get_username(pwd)));
564                 pdb_free_sam(&pwd);
565         }
566
567         pdb_endsampwent();
568         pdb_free_sam(&pwd);
569
570         if (!pdb_enum_group_mapping(SID_NAME_UNKNOWN, &map, &num_entries,
571                                     ENUM_ONLY_MAPPED))
572                 return max_rid;
573
574         for (i = 0; i < num_entries; i++) {
575                 uint32 rid;
576
577                 if (!sid_peek_check_rid(get_global_sam_sid(), &map[i].sid,
578                                         &rid)) {
579                         DEBUG(3, ("skipping map for group '%s', SID %s\n",
580                                   map[i].nt_name,
581                                   sid_string_static(&map[i].sid)));
582                         continue;
583                 }
584                 DEBUG(1,("%d is group '%s'\n", rid, map[i].nt_name));
585
586                 if (rid > max_rid)
587                         max_rid = rid;
588         }
589
590         SAFE_FREE(map);
591
592         return max_rid;
593 }
594
595 static int net_maxrid(int argc, const char **argv)
596 {
597         uint32 rid;
598
599         if (argc != 0) {
600                 DEBUG(0, ("usage: net maxrid\n"));
601                 return 1;
602         }
603
604         if ((rid = get_maxrid()) == 0) {
605                 DEBUG(0, ("can't get current maximum rid\n"));
606                 return 1;
607         }
608
609         d_printf("Currently used maximum rid: %d\n", rid);
610
611         return 0;
612 }
613
614 /* main function table */
615 static struct functable net_func[] = {
616         {"RPC", net_rpc},
617         {"RAP", net_rap},
618         {"ADS", net_ads},
619
620         /* eventually these should auto-choose the transport ... */
621         {"FILE", net_file},
622         {"SHARE", net_share},
623         {"SESSION", net_rap_session},
624         {"SERVER", net_rap_server},
625         {"DOMAIN", net_rap_domain},
626         {"PRINTQ", net_rap_printq},
627         {"USER", net_user},
628         {"GROUP", net_group},
629         {"GROUPMAP", net_groupmap},
630         {"VALIDATE", net_rap_validate},
631         {"GROUPMEMBER", net_rap_groupmember},
632         {"ADMIN", net_rap_admin},
633         {"SERVICE", net_rap_service},   
634         {"PASSWORD", net_rap_password},
635         {"CHANGETRUSTPW", net_changetrustpw},
636         {"CHANGESECRETPW", net_changesecretpw},
637         {"TIME", net_time},
638         {"LOOKUP", net_lookup},
639         {"JOIN", net_join},
640         {"CACHE", net_cache},
641         {"GETLOCALSID", net_getlocalsid},
642         {"SETLOCALSID", net_setlocalsid},
643         {"GETDOMAINSID", net_getdomainsid},
644         {"MAXRID", net_maxrid},
645         {"IDMAP", net_idmap},
646         {"STATUS", net_status},
647 #ifdef WITH_FAKE_KASERVER
648         {"AFSKEY", net_afskey},
649 #endif
650         {"PRIV", net_priv},
651
652         {"HELP", net_help},
653         {NULL, NULL}
654 };
655
656
657 /****************************************************************************
658   main program
659 ****************************************************************************/
660  int main(int argc, const char **argv)
661 {
662         int opt,i;
663         char *p;
664         int rc = 0;
665         int argc_new = 0;
666         const char ** argv_new;
667         poptContext pc;
668
669         struct poptOption long_options[] = {
670                 {"help",        'h', POPT_ARG_NONE,   0, 'h'},
671                 {"workgroup",   'w', POPT_ARG_STRING, &opt_target_workgroup},
672                 {"user",        'U', POPT_ARG_STRING, &opt_user_name, 'U'},
673                 {"ipaddress",   'I', POPT_ARG_STRING, 0,'I'},
674                 {"port",        'p', POPT_ARG_INT,    &opt_port},
675                 {"myname",      'n', POPT_ARG_STRING, &opt_requester_name},
676                 {"server",      'S', POPT_ARG_STRING, &opt_host},
677                 {"container",   'c', POPT_ARG_STRING, &opt_container},
678                 {"comment",     'C', POPT_ARG_STRING, &opt_comment},
679                 {"maxusers",    'M', POPT_ARG_INT,    &opt_maxusers},
680                 {"flags",       'F', POPT_ARG_INT,    &opt_flags},
681                 {"long",        'l', POPT_ARG_NONE,   &opt_long_list_entries},
682                 {"reboot",      'r', POPT_ARG_NONE,   &opt_reboot},
683                 {"force",       'f', POPT_ARG_NONE,   &opt_force},
684                 {"timeout",     't', POPT_ARG_INT,    &opt_timeout},
685                 {"machine-pass",'P', POPT_ARG_NONE,   &opt_machine_pass},
686                 {"myworkgroup", 'W', POPT_ARG_STRING, &opt_workgroup},
687
688                 /* Options for 'net groupmap set' */
689                 {"local",       'L', POPT_ARG_NONE,   &opt_localgroup},
690                 {"domain",      'D', POPT_ARG_NONE,   &opt_domaingroup},
691                 {"ntname",      'N', POPT_ARG_STRING, &opt_newntname},
692                 {"rid",         'R', POPT_ARG_INT,    &opt_rid},
693
694                 POPT_COMMON_SAMBA
695                 { 0, 0, 0, 0}
696         };
697
698         zero_ip(&opt_dest_ip);
699
700         /* set default debug level to 0 regardless of what smb.conf sets */
701         DEBUGLEVEL_CLASS[DBGC_ALL] = 0;
702         dbf = x_stderr;
703         
704         pc = poptGetContext(NULL, argc, (const char **) argv, long_options, 
705                             POPT_CONTEXT_KEEP_FIRST);
706         
707         while((opt = poptGetNextOpt(pc)) != -1) {
708                 switch (opt) {
709                 case 'h':
710                         net_help(argc, argv);
711                         exit(0);
712                         break;
713                 case 'I':
714                         opt_dest_ip = *interpret_addr2(poptGetOptArg(pc));
715                         if (is_zero_ip(opt_dest_ip))
716                                 d_printf("\nInvalid ip address specified\n");
717                         else
718                                 opt_have_ip = True;
719                         break;
720                 case 'U':
721                         opt_user_specified = True;
722                         opt_user_name = strdup(opt_user_name);
723                         p = strchr(opt_user_name,'%');
724                         if (p) {
725                                 *p = 0;
726                                 opt_password = p+1;
727                         }
728                         break;
729                 default:
730                         d_printf("\nInvalid option %s: %s\n", 
731                                  poptBadOption(pc, 0), poptStrerror(opt));
732                         net_help(argc, argv);
733                         exit(1);
734                 }
735         }
736         
737         /*
738          * Don't load debug level from smb.conf. It should be
739          * set by cmdline arg or remain default (0)
740          */
741         AllowDebugChange = False;
742         lp_load(dyn_CONFIGFILE,True,False,False);
743         
744         argv_new = (const char **)poptGetArgs(pc);
745
746         argc_new = argc;
747         for (i=0; i<argc; i++) {
748                 if (argv_new[i] == NULL) {
749                         argc_new = i;
750                         break;
751                 }
752         }
753
754         if (!opt_requester_name) {
755                 static fstring myname;
756                 get_myname(myname);
757                 opt_requester_name = myname;
758         }
759
760         if (!opt_user_name && getenv("LOGNAME")) {
761                 opt_user_name = getenv("LOGNAME");
762         }
763
764         if (!opt_workgroup) {
765                 opt_workgroup = smb_xstrdup(lp_workgroup());
766         }
767         
768         if (!opt_target_workgroup) {
769                 opt_target_workgroup = smb_xstrdup(lp_workgroup());
770         }
771         
772         if (!init_names())
773                 exit(1);
774
775         load_interfaces();
776         
777         /* this makes sure that when we do things like call scripts, 
778            that it won't assert becouse we are not root */
779         sec_init();
780
781         if (opt_machine_pass) {
782                 /* it is very useful to be able to make ads queries as the
783                    machine account for testing purposes and for domain leave */
784
785                 net_use_machine_password();
786         }
787
788         if (!opt_password) {
789                 opt_password = getenv("PASSWD");
790         }
791          
792         rc = net_run_function(argc_new-1, argv_new+1, net_func, net_help);
793         
794         DEBUG(2,("return code = %d\n", rc));
795         return rc;
796 }