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net: Split out "net share"
[Samba.git] / source / lib / popt_common.c
blob25e41ab5f3c0ce1886190662d385f2d63e0021c4
1 /*
2 Unix SMB/CIFS implementation.
3 Common popt routines
4
5 Copyright (C) Tim Potter 2001,2002
6 Copyright (C) Jelmer Vernooij 2002,2003
7 Copyright (C) James Peach 2006
8
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
13
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>.
21 */
22
23 #include "includes.h"
24
25 /* Handle command line options:
26 * -d,--debuglevel
27 * -s,--configfile
28 * -O,--socket-options
29 * -V,--version
30 * -l,--log-base
31 * -n,--netbios-name
32 * -W,--workgroup
33 * -i,--scope
34 */
35
36 extern bool AllowDebugChange;
37 extern bool override_logfile;
38
39 static void set_logfile(poptContext con, const char * arg)
40 {
41
42 char *logfile = NULL;
43 const char *pname;
44
45 /* Find out basename of current program */
46 pname = strrchr_m(poptGetInvocationName(con),'/');
47
48 if (!pname)
49 pname = poptGetInvocationName(con);
50 else
51 pname++;
52
53 if (asprintf(&logfile, "%s/log.%s", arg, pname) < 0) {
54 return;
55 }
56 lp_set_logfile(logfile);
57 SAFE_FREE(logfile);
58 }
59
60 static bool PrintSambaVersionString;
61
62 static void popt_common_callback(poptContext con,
63 enum poptCallbackReason reason,
64 const struct poptOption *opt,
65 const char *arg, const void *data)
66 {
67
68 if (reason == POPT_CALLBACK_REASON_PRE) {
69 set_logfile(con, get_dyn_LOGFILEBASE());
70 return;
71 }
72
73 if (reason == POPT_CALLBACK_REASON_POST) {
74
75 if (PrintSambaVersionString) {
76 printf( "Version %s\n", SAMBA_VERSION_STRING);
77 exit(0);
78 }
79
80 if (is_default_dyn_CONFIGFILE()) {
81 if(getenv("SMB_CONF_PATH")) {
82 set_dyn_CONFIGFILE(getenv("SMB_CONF_PATH"));
83 }
84 }
85
86 /* Further 'every Samba program must do this' hooks here. */
87 return;
88 }
89
90 switch(opt->val) {
91 case 'd':
92 if (arg) {
93 debug_parse_levels(arg);
94 AllowDebugChange = False;
95 }
96 break;
97
98 case 'V':
99 PrintSambaVersionString = True;
100 break;
101
102 case 'O':
103 if (arg) {
104 lp_do_parameter(-1, "socket options", arg);
105 }
106 break;
107
108 case 's':
109 if (arg) {
110 set_dyn_CONFIGFILE(arg);
111 }
112 break;
113
114 case 'n':
115 if (arg) {
116 set_global_myname(arg);
117 }
118 break;
119
120 case 'l':
121 if (arg) {
122 set_logfile(con, arg);
123 override_logfile = True;
124 set_dyn_LOGFILEBASE(arg);
125 }
126 break;
127
128 case 'i':
129 if (arg) {
130 set_global_scope(arg);
131 }
132 break;
133
134 case 'W':
135 if (arg) {
136 set_global_myworkgroup(arg);
137 }
138 break;
139 }
140 }
141
142 struct poptOption popt_common_connection[] = {
143 { NULL, 0, POPT_ARG_CALLBACK, (void *)popt_common_callback },
144 { "socket-options", 'O', POPT_ARG_STRING, NULL, 'O', "socket options to use",
145 "SOCKETOPTIONS" },
146 { "netbiosname", 'n', POPT_ARG_STRING, NULL, 'n', "Primary netbios name", "NETBIOSNAME" },
147 { "workgroup", 'W', POPT_ARG_STRING, NULL, 'W', "Set the workgroup name", "WORKGROUP" },
148 { "scope", 'i', POPT_ARG_STRING, NULL, 'i', "Use this Netbios scope", "SCOPE" },
149
150 POPT_TABLEEND
151 };
152
153 struct poptOption popt_common_samba[] = {
154 { NULL, 0, POPT_ARG_CALLBACK|POPT_CBFLAG_PRE|POPT_CBFLAG_POST, (void *)popt_common_callback },
155 { "debuglevel", 'd', POPT_ARG_STRING, NULL, 'd', "Set debug level", "DEBUGLEVEL" },
156 { "configfile", 's', POPT_ARG_STRING, NULL, 's', "Use alternate configuration file", "CONFIGFILE" },
157 { "log-basename", 'l', POPT_ARG_STRING, NULL, 'l', "Base name for log files", "LOGFILEBASE" },
158 { "version", 'V', POPT_ARG_NONE, NULL, 'V', "Print version" },
159 POPT_TABLEEND
160 };
161
162 struct poptOption popt_common_configfile[] = {
163 { NULL, 0, POPT_ARG_CALLBACK|POPT_CBFLAG_PRE|POPT_CBFLAG_POST, (void *)popt_common_callback },
164 { "configfile", 0, POPT_ARG_STRING, NULL, 's', "Use alternate configuration file", "CONFIGFILE" },
165 POPT_TABLEEND
166 };
167
168 struct poptOption popt_common_version[] = {
169 { NULL, 0, POPT_ARG_CALLBACK, (void *)popt_common_callback },
170 { "version", 'V', POPT_ARG_NONE, NULL, 'V', "Print version" },
171 POPT_TABLEEND
172 };
173
174
175 /* Handle command line options:
176 * --sbindir
177 * --bindir
178 * --swatdir
179 * --lmhostsfile
180 * --libdir
181 * --shlibext
182 * --lockdir
183 * --piddir
184 * --smb-passwd-file
185 * --private-dir
186 */
187
188 enum dyn_item{
189 DYN_SBINDIR = 1,
190 DYN_BINDIR,
191 DYN_SWATDIR,
192 DYN_LMHOSTSFILE,
193 DYN_LIBDIR,
194 DYN_SHLIBEXT,
195 DYN_LOCKDIR,
196 DYN_PIDDIR,
197 DYN_SMB_PASSWD_FILE,
198 DYN_PRIVATE_DIR,
199 };
200
201
202 static void popt_dynconfig_callback(poptContext con,
203 enum poptCallbackReason reason,
204 const struct poptOption *opt,
205 const char *arg, const void *data)
206 {
207
208 switch (opt->val) {
209 case DYN_SBINDIR:
210 if (arg) {
211 set_dyn_SBINDIR(arg);
212 }
213 break;
214
215 case DYN_BINDIR:
216 if (arg) {
217 set_dyn_BINDIR(arg);
218 }
219 break;
220
221 case DYN_SWATDIR:
222 if (arg) {
223 set_dyn_SWATDIR(arg);
224 }
225 break;
226
227 case DYN_LMHOSTSFILE:
228 if (arg) {
229 set_dyn_LMHOSTSFILE(arg);
230 }
231 break;
232
233 case DYN_LIBDIR:
234 if (arg) {
235 set_dyn_LIBDIR(arg);
236 }
237 break;
238
239 case DYN_SHLIBEXT:
240 if (arg) {
241 set_dyn_SHLIBEXT(arg);
242 }
243 break;
244
245 case DYN_LOCKDIR:
246 if (arg) {
247 set_dyn_LOCKDIR(arg);
248 }
249 break;
250
251 case DYN_PIDDIR:
252 if (arg) {
253 set_dyn_PIDDIR(arg);
254 }
255 break;
256
257 case DYN_SMB_PASSWD_FILE:
258 if (arg) {
259 set_dyn_SMB_PASSWD_FILE(arg);
260 }
261 break;
262
263 case DYN_PRIVATE_DIR:
264 if (arg) {
265 set_dyn_PRIVATE_DIR(arg);
266 }
267 break;
268
269 }
270 }
271
272 const struct poptOption popt_common_dynconfig[] = {
273
274 { NULL, '\0', POPT_ARG_CALLBACK, (void *)popt_dynconfig_callback },
275
276 { "sbindir", '\0' , POPT_ARG_STRING, NULL, DYN_SBINDIR,
277 "Path to sbin directory", "SBINDIR" },
278 { "bindir", '\0' , POPT_ARG_STRING, NULL, DYN_BINDIR,
279 "Path to bin directory", "BINDIR" },
280 { "swatdir", '\0' , POPT_ARG_STRING, NULL, DYN_SWATDIR,
281 "Path to SWAT installation directory", "SWATDIR" },
282 { "lmhostsfile", '\0' , POPT_ARG_STRING, NULL, DYN_LMHOSTSFILE,
283 "Path to lmhosts file", "LMHOSTSFILE" },
284 { "libdir", '\0' , POPT_ARG_STRING, NULL, DYN_LIBDIR,
285 "Path to shared library directory", "LIBDIR" },
286 { "shlibext", '\0' , POPT_ARG_STRING, NULL, DYN_SHLIBEXT,
287 "Shared library extension", "SHLIBEXT" },
288 { "lockdir", '\0' , POPT_ARG_STRING, NULL, DYN_LOCKDIR,
289 "Path to lock file directory", "LOCKDIR" },
290 { "piddir", '\0' , POPT_ARG_STRING, NULL, DYN_PIDDIR,
291 "Path to PID file directory", "PIDDIR" },
292 { "smb-passwd-file", '\0' , POPT_ARG_STRING, NULL, DYN_SMB_PASSWD_FILE,
293 "Path to smbpasswd file", "SMB_PASSWD_FILE" },
294 { "private-dir", '\0' , POPT_ARG_STRING, NULL, DYN_PRIVATE_DIR,
295 "Path to private data directory", "PRIVATE_DIR" },
296
297 POPT_TABLEEND
298 };
299
300 /****************************************************************************
301 * get a password from a a file or file descriptor
302 * exit on failure
303 * ****************************************************************************/
304
305 static void get_password_file(void)
306 {
307 int fd = -1;
308 char *p;
309 bool close_it = False;
310 char *spec = NULL;
311 char pass[128];
312
313 if ((p = getenv("PASSWD_FD")) != NULL) {
314 if (asprintf(&spec, "descriptor %s", p) < 0) {
315 return;
316 }
317 sscanf(p, "%d", &fd);
318 close_it = false;
319 } else if ((p = getenv("PASSWD_FILE")) != NULL) {
320 fd = sys_open(p, O_RDONLY, 0);
321 spec = SMB_STRDUP(p);
322 if (fd < 0) {
323 fprintf(stderr, "Error opening PASSWD_FILE %s: %s\n",
324 spec, strerror(errno));
325 exit(1);
326 }
327 close_it = True;
328 }
329
330 if (fd < 0) {
331 fprintf(stderr, "fd = %d, < 0\n", fd);
332 exit(1);
333 }
334
335 for(p = pass, *p = '\0'; /* ensure that pass is null-terminated */
336 p && p - pass < sizeof(pass);) {
337 switch (read(fd, p, 1)) {
338 case 1:
339 if (*p != '\n' && *p != '\0') {
340 *++p = '\0'; /* advance p, and null-terminate pass */
341 break;
342 }
343 case 0:
344 if (p - pass) {
345 *p = '\0'; /* null-terminate it, just in case... */
346 p = NULL; /* then force the loop condition to become false */
347 break;
348 } else {
349 fprintf(stderr, "Error reading password from file %s: %s\n",
350 spec, "empty password\n");
351 SAFE_FREE(spec);
352 exit(1);
353 }
354
355 default:
356 fprintf(stderr, "Error reading password from file %s: %s\n",
357 spec, strerror(errno));
358 SAFE_FREE(spec);
359 exit(1);
360 }
361 }
362 SAFE_FREE(spec);
363
364 set_cmdline_auth_info_password(pass);
365 if (close_it) {
366 close(fd);
367 }
368 }
369
370 static void get_credentials_file(const char *file)
371 {
372 XFILE *auth;
373 fstring buf;
374 uint16 len = 0;
375 char *ptr, *val, *param;
376
377 if ((auth=x_fopen(file, O_RDONLY, 0)) == NULL)
378 {
379 /* fail if we can't open the credentials file */
380 d_printf("ERROR: Unable to open credentials file!\n");
381 exit(-1);
382 }
383
384 while (!x_feof(auth))
385 {
386 /* get a line from the file */
387 if (!x_fgets(buf, sizeof(buf), auth))
388 continue;
389 len = strlen(buf);
390
391 if ((len) && (buf[len-1]=='\n'))
392 {
393 buf[len-1] = '\0';
394 len--;
395 }
396 if (len == 0)
397 continue;
398
399 /* break up the line into parameter & value.
400 * will need to eat a little whitespace possibly */
401 param = buf;
402 if (!(ptr = strchr_m (buf, '=')))
403 continue;
404
405 val = ptr+1;
406 *ptr = '\0';
407
408 /* eat leading white space */
409 while ((*val!='\0') && ((*val==' ') || (*val=='\t')))
410 val++;
411
412 if (strwicmp("password", param) == 0) {
413 set_cmdline_auth_info_password(val);
414 } else if (strwicmp("username", param) == 0) {
415 set_cmdline_auth_info_username(val);
416 } else if (strwicmp("domain", param) == 0) {
417 set_global_myworkgroup(val);
418 }
419 memset(buf, 0, sizeof(buf));
420 }
421 x_fclose(auth);
422 }
423
424 /* Handle command line options:
425 * -U,--user
426 * -A,--authentication-file
427 * -k,--use-kerberos
428 * -N,--no-pass
429 * -S,--signing
430 * -P --machine-pass
431 * -e --encrypt
432 */
433
434
435 static void popt_common_credentials_callback(poptContext con,
436 enum poptCallbackReason reason,
437 const struct poptOption *opt,
438 const char *arg, const void *data)
439 {
440 char *p;
441
442 if (reason == POPT_CALLBACK_REASON_PRE) {
443 set_cmdline_auth_info_username("GUEST");
444
445 if (getenv("LOGNAME")) {
446 set_cmdline_auth_info_username(getenv("LOGNAME"));
447 }
448
449 if (getenv("USER")) {
450 char *puser = SMB_STRDUP(getenv("USER"));
451 if (!puser) {
452 exit(ENOMEM);
453 }
454 set_cmdline_auth_info_username(puser);
455
456 if ((p = strchr_m(puser,'%'))) {
457 size_t len;
458 *p = 0;
459 len = strlen(p+1);
460 set_cmdline_auth_info_password(p+1);
461 memset(strchr_m(getenv("USER"),'%')+1,'X',len);
462 }
463 SAFE_FREE(puser);
464 }
465
466 if (getenv("PASSWD")) {
467 set_cmdline_auth_info_password(getenv("PASSWD"));
468 }
469
470 if (getenv("PASSWD_FD") || getenv("PASSWD_FILE")) {
471 get_password_file();
472 }
473
474 return;
475 }
476
477 switch(opt->val) {
478 case 'U':
479 {
480 char *lp;
481 char *puser = SMB_STRDUP(arg);
482
483 if ((lp=strchr_m(puser,'%'))) {
484 size_t len;
485 *lp = 0;
486 set_cmdline_auth_info_username(puser);
487 set_cmdline_auth_info_password(lp+1);
488 len = strlen(lp+1);
489 memset(strchr_m(arg,'%')+1,'X',len);
490 } else {
491 set_cmdline_auth_info_username(puser);
492 }
493 SAFE_FREE(puser);
494 }
495 break;
496
497 case 'A':
498 get_credentials_file(arg);
499 break;
500
501 case 'k':
502 #ifndef HAVE_KRB5
503 d_printf("No kerberos support compiled in\n");
504 exit(1);
505 #else
506 set_cmdline_auth_info_use_krb5_ticket();
507 #endif
508 break;
509
510 case 'S':
511 if (!set_cmdline_auth_info_signing_state(arg)) {
512 fprintf(stderr, "Unknown signing option %s\n", arg );
513 exit(1);
514 }
515 break;
516 case 'P':
517 set_cmdline_auth_info_use_machine_account();
518 break;
519 case 'N':
520 set_cmdline_auth_info_password("");
521 break;
522 case 'e':
523 set_cmdline_auth_info_smb_encrypt();
524 break;
525
526 }
527 }
528
529 struct poptOption popt_common_credentials[] = {
530 { NULL, 0, POPT_ARG_CALLBACK|POPT_CBFLAG_PRE, (void *)popt_common_credentials_callback },
531 { "user", 'U', POPT_ARG_STRING, NULL, 'U', "Set the network username", "USERNAME" },
532 { "no-pass", 'N', POPT_ARG_NONE, NULL, 'N', "Don't ask for a password" },
533 { "kerberos", 'k', POPT_ARG_NONE, NULL, 'k', "Use kerberos (active directory) authentication" },
534 { "authentication-file", 'A', POPT_ARG_STRING, NULL, 'A', "Get the credentials from a file", "FILE" },
535 { "signing", 'S', POPT_ARG_STRING, NULL, 'S', "Set the client signing state", "on|off|required" },
536 {"machine-pass", 'P', POPT_ARG_NONE, NULL, 'P', "Use stored machine account password" },
537 {"encrypt", 'e', POPT_ARG_NONE, NULL, 'e', "Encrypt SMB transport (UNIX extended servers only)" },
538 POPT_TABLEEND
539 };
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