Annotation of embedaddon/sudo/src/parse_args.c, revision 1.1.1.6
1.1 misho 1: /*
1.1.1.4 misho 2: * Copyright (c) 1993-1996, 1998-2013 Todd C. Miller <Todd.Miller@courtesan.com>
1.1 misho 3: *
4: * Permission to use, copy, modify, and distribute this software for any
5: * purpose with or without fee is hereby granted, provided that the above
6: * copyright notice and this permission notice appear in all copies.
7: *
8: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15: *
16: * Sponsored in part by the Defense Advanced Research Projects
17: * Agency (DARPA) and Air Force Research Laboratory, Air Force
18: * Materiel Command, USAF, under agreement number F39502-99-1-0512.
19: */
20:
21: #include <config.h>
22:
23: #include <sys/types.h>
24:
25: #include <stdio.h>
26: #ifdef STDC_HEADERS
27: # include <stdlib.h>
28: # include <stddef.h>
29: #else
30: # ifdef HAVE_STDLIB_H
31: # include <stdlib.h>
32: # endif
33: #endif /* STDC_HEADERS */
34: #ifdef HAVE_STRING_H
35: # include <string.h>
36: #endif /* HAVE_STRING_H */
37: #ifdef HAVE_STRINGS_H
38: # include <strings.h>
39: #endif /* HAVE_STRINGS_H */
40: #ifdef HAVE_UNISTD_H
41: # include <unistd.h>
42: #endif /* HAVE_UNISTD_H */
1.1.1.5 misho 43: #ifdef HAVE_GETOPT_LONG
44: # include <getopt.h>
45: # else
46: # include "compat/getopt.h"
47: #endif /* HAVE_GETOPT_LONG */
1.1 misho 48: #include <ctype.h>
49: #include <grp.h>
50: #include <pwd.h>
51:
1.1.1.5 misho 52: #include <sudo_usage.h>
1.1 misho 53: #include "sudo.h"
54: #include "lbuf.h"
55:
56: int tgetpass_flags;
57:
58: /*
59: * Local functions.
60: */
61: static void help(void) __attribute__((__noreturn__));
62: static void usage_excl(int);
63:
64: /*
65: * Mapping of command line flags to name/value settings.
66: */
67: static struct sudo_settings {
68: const char *name;
69: const char *value;
70: } sudo_settings[] = {
71: #define ARG_BSDAUTH_TYPE 0
72: { "bsdauth_type" },
73: #define ARG_LOGIN_CLASS 1
74: { "login_class" },
1.1.1.2 misho 75: #define ARG_DEBUG_FLAGS 2
76: { "debug_flags" },
1.1 misho 77: #define ARG_PRESERVE_ENVIRONMENT 3
78: { "preserve_environment" },
79: #define ARG_RUNAS_GROUP 4
80: { "runas_group" },
81: #define ARG_SET_HOME 5
82: { "set_home" },
83: #define ARG_USER_SHELL 6
84: { "run_shell" },
85: #define ARG_LOGIN_SHELL 7
86: { "login_shell" },
87: #define ARG_IGNORE_TICKET 8
88: { "ignore_ticket" },
89: #define ARG_PROMPT 9
90: { "prompt" },
91: #define ARG_SELINUX_ROLE 10
92: { "selinux_role" },
93: #define ARG_SELINUX_TYPE 11
94: { "selinux_type" },
95: #define ARG_RUNAS_USER 12
96: { "runas_user" },
97: #define ARG_PROGNAME 13
98: { "progname" },
99: #define ARG_IMPLIED_SHELL 14
100: { "implied_shell" },
101: #define ARG_PRESERVE_GROUPS 15
102: { "preserve_groups" },
103: #define ARG_NONINTERACTIVE 16
104: { "noninteractive" },
105: #define ARG_SUDOEDIT 17
106: { "sudoedit" },
107: #define ARG_CLOSEFROM 18
108: { "closefrom" },
109: #define ARG_NET_ADDRS 19
110: { "network_addrs" },
1.1.1.4 misho 111: #define ARG_MAX_GROUPS 20
112: { "max_groups" },
113: #define ARG_PLUGIN_DIR 21
114: { "plugin_dir" },
1.1.1.5 misho 115: #define ARG_REMOTE_HOST 22
116: { "remote_host" },
117: #define NUM_SETTINGS 23
1.1 misho 118: { NULL }
119: };
120:
121: /*
1.1.1.5 misho 122: * Default flags allowed when running a command.
123: */
124: #define DEFAULT_VALID_FLAGS (MODE_BACKGROUND|MODE_PRESERVE_ENV|MODE_RESET_HOME|MODE_LOGIN_SHELL|MODE_NONINTERACTIVE|MODE_SHELL)
125:
126: /* Option number for the --host long option due to ambiguity of the -h flag. */
127: #define OPT_HOSTNAME 256
128:
129: /*
130: * Available command line options, both short and long.
131: * Note that we must disable arg permutation to support setting environment
132: * variables and to better support the optional arg of the -h flag.
133: */
134: static const char short_opts[] = "+Aa:bC:c:D:Eeg:Hh::iKklnPp:r:Sst:U:u:Vv";
135: static struct option long_opts[] = {
136: { "askpass", no_argument, NULL, 'A' },
137: { "auth-type", required_argument, NULL, 'a' },
138: { "background", no_argument, NULL, 'b' },
139: { "close-from", required_argument, NULL, 'C' },
140: { "login-class", required_argument, NULL, 'c' },
141: { "preserve-env", no_argument, NULL, 'E' },
142: { "edit", no_argument, NULL, 'e' },
143: { "group", required_argument, NULL, 'g' },
144: { "set-home", no_argument, NULL, 'H' },
145: { "help", no_argument, NULL, 'h' },
146: { "host", required_argument, NULL, OPT_HOSTNAME },
147: { "login", no_argument, NULL, 'i' },
148: { "remove-timestamp", no_argument, NULL, 'K' },
149: { "reset-timestamp", no_argument, NULL, 'k' },
150: { "list", no_argument, NULL, 'l' },
151: { "non-interactive", no_argument, NULL, 'n' },
152: { "preserve-groups", no_argument, NULL, 'P' },
153: { "prompt", required_argument, NULL, 'p' },
154: { "role", required_argument, NULL, 'r' },
155: { "stdin", no_argument, NULL, 'S' },
156: { "shell", no_argument, NULL, 's' },
157: { "type", required_argument, NULL, 't' },
158: { "other-user", required_argument, NULL, 'U' },
159: { "user", required_argument, NULL, 'u' },
160: { "version", no_argument, NULL, 'V' },
161: { "validate", no_argument, NULL, 'v' },
162: { NULL, no_argument, NULL, '\0' },
163: };
164:
165: /*
1.1 misho 166: * Command line argument parsing.
167: * Sets nargc and nargv which corresponds to the argc/argv we'll use
168: * for the command to be run (if we are running one).
169: */
170: int
171: parse_args(int argc, char **argv, int *nargc, char ***nargv, char ***settingsp,
172: char ***env_addp)
173: {
174: int mode = 0; /* what mode is sudo to be run in? */
175: int flags = 0; /* mode flags */
1.1.1.5 misho 176: int valid_flags = DEFAULT_VALID_FLAGS;
177: int ch, i, j;
1.1 misho 178: char *cp, **env_add, **settings;
1.1.1.5 misho 179: const char *runas_user = NULL;
180: const char *runas_group = NULL;
1.1.1.2 misho 181: const char *debug_flags;
1.1 misho 182: int nenv = 0;
183: int env_size = 32;
1.1.1.2 misho 184: debug_decl(parse_args, SUDO_DEBUG_ARGS)
1.1 misho 185:
186: env_add = emalloc2(env_size, sizeof(char *));
187:
1.1.1.6 ! misho 188: /* Pass progname to plugin so it can call initprogname() */
1.1 misho 189: sudo_settings[ARG_PROGNAME].value = getprogname();
190:
191: /* First, check to see if we were invoked as "sudoedit". */
192: if (strcmp(getprogname(), "sudoedit") == 0) {
193: mode = MODE_EDIT;
194: sudo_settings[ARG_SUDOEDIT].value = "true";
195: }
196:
197: /* Load local IP addresses and masks. */
198: if (get_net_ifs(&cp) > 0)
199: sudo_settings[ARG_NET_ADDRS].value = cp;
200:
1.1.1.2 misho 201: /* Set debug file and flags from sudo.conf. */
202: debug_flags = sudo_conf_debug_flags();
203: if (debug_flags != NULL)
204: sudo_settings[ARG_DEBUG_FLAGS].value = debug_flags;
205:
1.1.1.4 misho 206: /* Set max_groups from sudo.conf. */
207: i = sudo_conf_max_groups();
208: if (i != -1) {
209: easprintf(&cp, "%d", i);
210: sudo_settings[ARG_MAX_GROUPS].value = cp;
211: }
212:
1.1.1.5 misho 213: /* Returns true if the last option string was "-h" */
214: #define got_host_flag (optind > 1 && argv[optind - 1][0] == '-' && \
215: argv[optind - 1][1] == 'h' && argv[optind - 1][2] == '\0')
216:
1.1 misho 217: /* Returns true if the last option string was "--" */
218: #define got_end_of_args (optind > 1 && argv[optind - 1][0] == '-' && \
219: argv[optind - 1][1] == '-' && argv[optind - 1][2] == '\0')
220:
221: /* Returns true if next option is an environment variable */
222: #define is_envar (optind < argc && argv[optind][0] != '/' && \
223: strchr(argv[optind], '=') != NULL)
224:
225: /* XXX - should fill in settings at the end to avoid dupes */
226: for (;;) {
227: /*
228: * Some trickiness is required to allow environment variables
229: * to be interspersed with command line options.
230: */
1.1.1.5 misho 231: if ((ch = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
1.1 misho 232: switch (ch) {
233: case 'A':
234: SET(tgetpass_flags, TGP_ASKPASS);
235: break;
236: #ifdef HAVE_BSD_AUTH_H
237: case 'a':
238: sudo_settings[ARG_BSDAUTH_TYPE].value = optarg;
239: break;
240: #endif
241: case 'b':
242: SET(flags, MODE_BACKGROUND);
243: break;
244: case 'C':
1.1.1.6 ! misho 245: if (strtonum(optarg, 3, INT_MAX, NULL) == 0) {
1.1 misho 246: warningx(_("the argument to -C must be a number greater than or equal to 3"));
247: usage(1);
248: }
249: sudo_settings[ARG_CLOSEFROM].value = optarg;
250: break;
251: #ifdef HAVE_LOGIN_CAP_H
252: case 'c':
253: sudo_settings[ARG_LOGIN_CLASS].value = optarg;
254: break;
255: #endif
256: case 'D':
1.1.1.2 misho 257: /* Ignored for backwards compatibility. */
1.1 misho 258: break;
259: case 'E':
260: sudo_settings[ARG_PRESERVE_ENVIRONMENT].value = "true";
261: break;
262: case 'e':
263: if (mode && mode != MODE_EDIT)
264: usage_excl(1);
265: mode = MODE_EDIT;
266: sudo_settings[ARG_SUDOEDIT].value = "true";
267: valid_flags = MODE_NONINTERACTIVE;
268: break;
269: case 'g':
270: runas_group = optarg;
271: sudo_settings[ARG_RUNAS_GROUP].value = optarg;
272: break;
273: case 'H':
274: sudo_settings[ARG_SET_HOME].value = "true";
275: break;
276: case 'h':
1.1.1.5 misho 277: if (optarg == NULL) {
278: /*
279: * Optional args support -hhostname, not -h hostname.
280: * If we see a non-option after the -h flag, treat as
281: * remote host and bump optind to skip over it.
282: */
283: if (got_host_flag && !is_envar &&
284: argv[optind] != NULL && argv[optind][0] != '-') {
285: sudo_settings[ARG_REMOTE_HOST].value = argv[optind++];
286: continue;
287: }
288: if (mode && mode != MODE_HELP) {
289: if (strcmp(getprogname(), "sudoedit") != 0)
290: usage_excl(1);
291: }
292: mode = MODE_HELP;
293: valid_flags = 0;
294: break;
1.1 misho 295: }
1.1.1.5 misho 296: /* FALLTHROUGH */
297: case OPT_HOSTNAME:
298: sudo_settings[ARG_REMOTE_HOST].value = optarg;
1.1 misho 299: break;
300: case 'i':
301: sudo_settings[ARG_LOGIN_SHELL].value = "true";
302: SET(flags, MODE_LOGIN_SHELL);
303: break;
304: case 'k':
305: sudo_settings[ARG_IGNORE_TICKET].value = "true";
306: break;
307: case 'K':
308: sudo_settings[ARG_IGNORE_TICKET].value = "true";
309: if (mode && mode != MODE_KILL)
310: usage_excl(1);
311: mode = MODE_KILL;
312: valid_flags = 0;
313: break;
314: case 'l':
315: if (mode) {
316: if (mode == MODE_LIST)
317: SET(flags, MODE_LONG_LIST);
318: else
319: usage_excl(1);
320: }
321: mode = MODE_LIST;
322: valid_flags = MODE_NONINTERACTIVE|MODE_LONG_LIST;
323: break;
324: case 'n':
325: SET(flags, MODE_NONINTERACTIVE);
326: sudo_settings[ARG_NONINTERACTIVE].value = "true";
327: break;
328: case 'P':
329: sudo_settings[ARG_PRESERVE_GROUPS].value = "true";
330: break;
331: case 'p':
332: sudo_settings[ARG_PROMPT].value = optarg;
333: break;
334: #ifdef HAVE_SELINUX
335: case 'r':
336: sudo_settings[ARG_SELINUX_ROLE].value = optarg;
337: break;
338: case 't':
339: sudo_settings[ARG_SELINUX_TYPE].value = optarg;
340: break;
341: #endif
342: case 'S':
343: SET(tgetpass_flags, TGP_STDIN);
344: break;
345: case 's':
346: sudo_settings[ARG_USER_SHELL].value = "true";
347: SET(flags, MODE_SHELL);
348: break;
349: case 'U':
350: list_user = optarg;
351: break;
352: case 'u':
353: runas_user = optarg;
354: sudo_settings[ARG_RUNAS_USER].value = optarg;
355: break;
356: case 'v':
357: if (mode && mode != MODE_VALIDATE)
358: usage_excl(1);
359: mode = MODE_VALIDATE;
360: valid_flags = MODE_NONINTERACTIVE;
361: break;
362: case 'V':
363: if (mode && mode != MODE_VERSION)
364: usage_excl(1);
365: mode = MODE_VERSION;
366: valid_flags = 0;
367: break;
368: default:
369: usage(1);
370: }
371: } else if (!got_end_of_args && is_envar) {
372: if (nenv == env_size - 2) {
373: env_size *= 2;
374: env_add = erealloc3(env_add, env_size, sizeof(char *));
375: }
376: env_add[nenv++] = argv[optind];
377:
378: /* Crank optind and resume getopt. */
379: optind++;
380: } else {
381: /* Not an option or an environment variable -- we're done. */
382: break;
383: }
384: }
385: env_add[nenv] = NULL;
386:
387: argc -= optind;
388: argv += optind;
389:
390: if (!mode) {
391: /* Defer -k mode setting until we know whether it is a flag or not */
392: if (sudo_settings[ARG_IGNORE_TICKET].value != NULL) {
1.1.1.2 misho 393: if (argc == 0 && !(flags & (MODE_SHELL|MODE_LOGIN_SHELL))) {
1.1 misho 394: mode = MODE_INVALIDATE; /* -k by itself */
395: sudo_settings[ARG_IGNORE_TICKET].value = NULL;
396: valid_flags = 0;
397: }
398: }
399: if (!mode)
400: mode = MODE_RUN; /* running a command */
401: }
402:
403: if (argc > 0 && mode == MODE_LIST)
404: mode = MODE_CHECK;
405:
406: if (ISSET(flags, MODE_LOGIN_SHELL)) {
407: if (ISSET(flags, MODE_SHELL)) {
1.1.1.6 ! misho 408: warningx(U_("you may not specify both the `-i' and `-s' options"));
1.1 misho 409: usage(1);
410: }
411: if (ISSET(flags, MODE_PRESERVE_ENV)) {
1.1.1.6 ! misho 412: warningx(U_("you may not specify both the `-i' and `-E' options"));
1.1 misho 413: usage(1);
414: }
415: SET(flags, MODE_SHELL);
416: }
417: if ((flags & valid_flags) != flags)
418: usage(1);
419: if (mode == MODE_EDIT &&
420: (ISSET(flags, MODE_PRESERVE_ENV) || env_add[0] != NULL)) {
421: if (ISSET(mode, MODE_PRESERVE_ENV))
1.1.1.6 ! misho 422: warningx(U_("the `-E' option is not valid in edit mode"));
1.1 misho 423: if (env_add[0] != NULL)
1.1.1.6 ! misho 424: warningx(U_("you may not specify environment variables in edit mode"));
1.1 misho 425: usage(1);
426: }
427: if ((runas_user != NULL || runas_group != NULL) &&
428: !ISSET(mode, MODE_EDIT | MODE_RUN | MODE_CHECK | MODE_VALIDATE)) {
429: usage(1);
430: }
431: if (list_user != NULL && mode != MODE_LIST && mode != MODE_CHECK) {
1.1.1.6 ! misho 432: warningx(U_("the `-U' option may only be used with the `-l' option"));
1.1 misho 433: usage(1);
434: }
435: if (ISSET(tgetpass_flags, TGP_STDIN) && ISSET(tgetpass_flags, TGP_ASKPASS)) {
1.1.1.6 ! misho 436: warningx(U_("the `-A' and `-S' options may not be used together"));
1.1 misho 437: usage(1);
438: }
439: if ((argc == 0 && mode == MODE_EDIT) ||
440: (argc > 0 && !ISSET(mode, MODE_RUN | MODE_EDIT | MODE_CHECK)))
441: usage(1);
442: if (argc == 0 && mode == MODE_RUN && !ISSET(flags, MODE_SHELL)) {
443: SET(flags, (MODE_IMPLIED_SHELL | MODE_SHELL));
444: sudo_settings[ARG_IMPLIED_SHELL].value = "true";
445: }
446:
447: if (mode == MODE_HELP)
448: help();
449:
450: /*
451: * For shell mode we need to rewrite argv
452: */
453: if (ISSET(mode, MODE_RUN) && ISSET(flags, MODE_SHELL)) {
1.1.1.3 misho 454: char **av, *cmnd = NULL;
455: int ac = 1;
1.1 misho 456:
1.1.1.3 misho 457: if (argc != 0) {
1.1 misho 458: /* shell -c "command" */
1.1.1.3 misho 459: char *src, *dst;
1.1 misho 460: size_t cmnd_size = (size_t) (argv[argc - 1] - argv[0]) +
461: strlen(argv[argc - 1]) + 1;
462:
463: cmnd = dst = emalloc2(cmnd_size, 2);
464: for (av = argv; *av != NULL; av++) {
465: for (src = *av; *src != '\0'; src++) {
466: /* quote potential meta characters */
1.1.1.5 misho 467: if (!isalnum((unsigned char)*src) && *src != '_' && *src != '-' && *src != '$')
1.1 misho 468: *dst++ = '\\';
469: *dst++ = *src;
470: }
471: *dst++ = ' ';
472: }
473: if (cmnd != dst)
474: dst--; /* replace last space with a NUL */
475: *dst = '\0';
476:
1.1.1.3 misho 477: ac += 2; /* -c cmnd */
478: }
479:
480: av = emalloc2(ac + 1, sizeof(char *));
481: av[0] = (char *)user_details.shell; /* plugin may override shell */
482: if (cmnd != NULL) {
1.1 misho 483: av[1] = "-c";
484: av[2] = cmnd;
485: }
486: av[ac] = NULL;
487:
488: argv = av;
489: argc = ac;
490: }
491:
492: /*
493: * Format setting_pairs into settings array.
494: */
1.1.1.4 misho 495: #ifdef _PATH_SUDO_PLUGIN_DIR
1.1.1.5 misho 496: sudo_settings[ARG_PLUGIN_DIR].value = sudo_conf_plugin_dir_path();
1.1.1.4 misho 497: #endif
1.1 misho 498: settings = emalloc2(NUM_SETTINGS + 1, sizeof(char *));
499: for (i = 0, j = 0; i < NUM_SETTINGS; i++) {
500: if (sudo_settings[i].value) {
1.1.1.2 misho 501: sudo_debug_printf(SUDO_DEBUG_INFO, "settings: %s=%s",
502: sudo_settings[i].name, sudo_settings[i].value);
1.1 misho 503: settings[j] = fmt_string(sudo_settings[i].name,
504: sudo_settings[i].value);
505: if (settings[j] == NULL)
1.1.1.5 misho 506: fatal(NULL);
1.1 misho 507: j++;
508: }
509: }
510: settings[j] = NULL;
511:
512: if (mode == MODE_EDIT) {
513: #if defined(HAVE_SETRESUID) || defined(HAVE_SETREUID) || defined(HAVE_SETEUID)
514: /* Must have the command in argv[0]. */
515: argc++;
516: argv--;
517: argv[0] = "sudoedit";
518: #else
1.1.1.6 ! misho 519: fatalx(U_("sudoedit is not supported on this platform"));
1.1 misho 520: #endif
521: }
522:
523: *settingsp = settings;
524: *env_addp = env_add;
525: *nargc = argc;
526: *nargv = argv;
1.1.1.2 misho 527: debug_return_int(mode | flags);
1.1 misho 528: }
529:
530: static int
531: usage_err(const char *buf)
532: {
533: return fputs(buf, stderr);
534: }
535:
536: static int
537: usage_out(const char *buf)
538: {
539: return fputs(buf, stdout);
540: }
541:
542: /*
543: * Give usage message and exit.
544: * The actual usage strings are in sudo_usage.h for configure substitution.
545: */
546: void
547: usage(int fatal)
548: {
549: struct lbuf lbuf;
550: char *uvec[6];
551: int i, ulen;
552:
553: /*
554: * Use usage vectors appropriate to the progname.
555: */
556: if (strcmp(getprogname(), "sudoedit") == 0) {
557: uvec[0] = SUDO_USAGE5 + 3;
558: uvec[1] = NULL;
559: } else {
560: uvec[0] = SUDO_USAGE1;
561: uvec[1] = SUDO_USAGE2;
562: uvec[2] = SUDO_USAGE3;
563: uvec[3] = SUDO_USAGE4;
564: uvec[4] = SUDO_USAGE5;
565: uvec[5] = NULL;
566: }
567:
568: /*
569: * Print usage and wrap lines as needed, depending on the
570: * tty width.
571: */
572: ulen = (int)strlen(getprogname()) + 8;
573: lbuf_init(&lbuf, fatal ? usage_err : usage_out, ulen, NULL,
574: user_details.ts_cols);
575: for (i = 0; uvec[i] != NULL; i++) {
576: lbuf_append(&lbuf, "usage: %s%s", getprogname(), uvec[i]);
577: lbuf_print(&lbuf);
578: }
579: lbuf_destroy(&lbuf);
580: if (fatal)
581: exit(1);
582: }
583:
584: /*
585: * Tell which options are mutually exclusive and exit.
586: */
587: static void
588: usage_excl(int fatal)
589: {
1.1.1.2 misho 590: debug_decl(usage_excl, SUDO_DEBUG_ARGS)
591:
1.1.1.6 ! misho 592: warningx(U_("Only one of the -e, -h, -i, -K, -l, -s, -v or -V options may be specified"));
1.1 misho 593: usage(fatal);
594: }
595:
596: static void
597: help(void)
598: {
599: struct lbuf lbuf;
1.1.1.5 misho 600: const int indent = 30;
1.1 misho 601: const char *pname = getprogname();
1.1.1.2 misho 602: debug_decl(help, SUDO_DEBUG_ARGS)
1.1 misho 603:
604: lbuf_init(&lbuf, usage_out, indent, NULL, user_details.ts_cols);
605: if (strcmp(pname, "sudoedit") == 0)
606: lbuf_append(&lbuf, _("%s - edit files as another user\n\n"), pname);
607: else
608: lbuf_append(&lbuf, _("%s - execute a command as another user\n\n"), pname);
609: lbuf_print(&lbuf);
610:
611: usage(0);
612:
613: lbuf_append(&lbuf, _("\nOptions:\n"));
1.1.1.5 misho 614: lbuf_append(&lbuf, " -A, --askpass %s\n",
615: _("use a helper program for password prompting"));
1.1.1.4 misho 616: #ifdef HAVE_BSD_AUTH_H
1.1.1.5 misho 617: lbuf_append(&lbuf, " -a, --auth-type=type %s\n",
618: _("use specified BSD authentication type"));
1.1.1.4 misho 619: #endif
1.1.1.5 misho 620: lbuf_append(&lbuf, " -b, --background %s\n",
621: _("run command in the background"));
622: lbuf_append(&lbuf, " -C, --close-from=num %s\n",
623: _("close all file descriptors >= num"));
1.1 misho 624: #ifdef HAVE_LOGIN_CAP_H
1.1.1.5 misho 625: lbuf_append(&lbuf, " -c, --login-class=class %s\n",
626: _("run command with the specified BSD login class"));
1.1 misho 627: #endif
1.1.1.5 misho 628: lbuf_append(&lbuf, " -E, --preserve-env %s\n",
629: _("preserve user environment when running command"));
630: lbuf_append(&lbuf, " -e, --edit %s\n",
631: _("edit files instead of running a command"));
632: lbuf_append(&lbuf, " -g, --group=group %s\n",
633: _("run command as the specified group name or ID"));
634: lbuf_append(&lbuf, " -H, --set-home %s\n",
635: _("set HOME variable to target user's home dir"));
636: lbuf_append(&lbuf, " -h, --help %s\n",
637: _("display help message and exit"));
638: lbuf_append(&lbuf, " -h, --host=host %s\n",
639: _("run command on host (if supported by plugin)"));
640: lbuf_append(&lbuf, " -i, --login %s\n",
641: _("run login shell as the target user; a command may also be specified"));
642: lbuf_append(&lbuf, " -K, --remove-timestamp %s\n",
643: _("remove timestamp file completely"));
644: lbuf_append(&lbuf, " -k, --reset-timestamp %s\n",
645: _("invalidate timestamp file"));
646: lbuf_append(&lbuf, " -l, --list %s\n",
647: _("list user's privileges or check a specific command; use twice for longer format"));
648: lbuf_append(&lbuf, " -n, --non-interactive %s\n",
649: _("non-interactive mode, no prompts are used"));
650: lbuf_append(&lbuf, " -P, --preserve-groups %s\n",
651: _("preserve group vector instead of setting to target's"));
652: lbuf_append(&lbuf, " -p, --prompt=prompt %s\n",
653: _("use the specified password prompt"));
1.1 misho 654: #ifdef HAVE_SELINUX
1.1.1.5 misho 655: lbuf_append(&lbuf, " -r, --role=role %s\n",
656: _("create SELinux security context with specified role"));
1.1 misho 657: #endif
1.1.1.5 misho 658: lbuf_append(&lbuf, " -S, --stdin %s\n",
659: _("read password from standard input"));
660: lbuf_append(&lbuf, " -s, --shell %s\n",
661: _("run shell as the target user; a command may also be specified"));
1.1 misho 662: #ifdef HAVE_SELINUX
1.1.1.5 misho 663: lbuf_append(&lbuf, " -t, --type=type %s\n",
664: _("create SELinux security context with specified type"));
1.1 misho 665: #endif
1.1.1.5 misho 666: lbuf_append(&lbuf, " -U, --other-user=user %s\n",
667: _("in list mode, display privileges for user"));
668: lbuf_append(&lbuf, " -u, --user=user %s\n",
669: _("run command (or edit file) as specified user name or ID"));
670: lbuf_append(&lbuf, " -V, --version %s\n",
671: _("display version information and exit"));
672: lbuf_append(&lbuf, " -v, --validate %s\n",
673: _("update user's timestamp without running a command"));
674: lbuf_append(&lbuf, " -- %s\n",
675: _("stop processing command line arguments"));
1.1 misho 676: lbuf_print(&lbuf);
677: lbuf_destroy(&lbuf);
1.1.1.2 misho 678: sudo_debug_exit_int(__func__, __FILE__, __LINE__, sudo_debug_subsys, 0);
1.1 misho 679: exit(0);
680: }
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