blob: 5f35c583c4256199f540f349fdbae4731cf0ebe4 [file] [log] [blame]
Manuel Novoa III cad53642003-03-19 09:13:01 +00001/* vi: set sw=4 ts=4: */
2/*
Eric Andersen8876fb22003-06-20 09:01:58 +00003 * universal getopt_ulflags implementation for busybox
Manuel Novoa III cad53642003-03-19 09:13:01 +00004 *
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +00005 * Copyright (C) 2003-2005 Vladimir Oleynik <dzo@simtreas.ru>
Manuel Novoa III cad53642003-03-19 09:13:01 +00006 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 *
21 */
22
23#include <getopt.h>
24#include <string.h>
Eric Andersen8876fb22003-06-20 09:01:58 +000025#include <assert.h>
26#include <stdlib.h>
Manuel Novoa III cad53642003-03-19 09:13:01 +000027#include "libbb.h"
28
Mike Frysinger2bf88a82005-04-18 22:42:58 +000029/* Documentation !
30
Mike Frysingere5d0bde2005-05-10 23:48:35 +000031unsigned long
Mike Frysinger2bf88a82005-04-18 22:42:58 +000032bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
33
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000034 The command line options must be declared in const char
35 *applet_opts as a string of chars, for example:
Mike Frysinger2bf88a82005-04-18 22:42:58 +000036
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000037 flags = bb_getopt_ulflags(argc, argv, "rnug");
Mike Frysinger2bf88a82005-04-18 22:42:58 +000038
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000039 If one of the given options is found, a flag value is added to
40 the return value (an unsigned long).
Mike Frysinger2bf88a82005-04-18 22:42:58 +000041
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000042 The flag value is determined by the position of the char in
43 applet_opts string. For example, in the above case:
Mike Frysinger2bf88a82005-04-18 22:42:58 +000044
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000045 flags = bb_getopt_ulflags(argc, argv, "rnug");
Mike Frysinger2bf88a82005-04-18 22:42:58 +000046
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000047 "r" will add 1 (bit 1 : 0x01)
48 "n" will add 2 (bit 2 : 0x02)
49 "u will add 4 (bit 3 : 0x03)
50 "g" will add 8 (bit 4 : 0x04)
Mike Frysinger2bf88a82005-04-18 22:42:58 +000051
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000052 and so on. You can also look at the return value as a bit
53 field and each option sets one of bits.
Mike Frysinger2bf88a82005-04-18 22:42:58 +000054
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000055 ":" If one of the options requires an argument, then add a ":"
56 after the char in applet_opts and provide a pointer to store
57 the argument. For example:
Mike Frysinger2bf88a82005-04-18 22:42:58 +000058
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000059 char *pointer_to_arg_for_a;
60 char *pointer_to_arg_for_b;
61 char *pointer_to_arg_for_c;
62 char *pointer_to_arg_for_d;
Mike Frysinger2bf88a82005-04-18 22:42:58 +000063
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000064 flags = bb_getopt_ulflags(argc, argv, "a:b:c:d:",
65 &pointer_to_arg_for_a, &pointer_to_arg_for_b,
66 &pointer_to_arg_for_c, &pointer_to_arg_for_d);
Mike Frysinger2bf88a82005-04-18 22:42:58 +000067
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000068 The type of the pointer (char* or llist_t *) may be controlled
69 by the "*" special character that is set in the external string
70 bb_opt_complementally (see below for more info).
Mike Frysingere5d0bde2005-05-10 23:48:35 +000071
72static const struct option bb_default_long_options[]
73
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000074 This struct allows you to define long options. The syntax for
75 declaring the array is just like that of getopt's longopts.
76 (see getopt(3))
Mike Frysingere5d0bde2005-05-10 23:48:35 +000077
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000078 static const struct option applet_long_options[] = {
79 { "verbose", 0, 0, v },
80 { 0, 0, 0, 0 }
81 };
82 bb_applet_long_options = applet_long_options;
Mike Frysingere5d0bde2005-05-10 23:48:35 +000083
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000084 The last argument (val) can undefined from applet_opts.
85 If you use this, then:
86 - return bit have next position after short options
87 - if has_arg is not "no_argument", use ptr for arg also
88 - bb_opt_complementally have effects for this too
Mike Frysingerfb6d22c2005-05-11 00:02:39 +000089
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000090 Note: a good applet will make long options configurable via the
91 config process and not a required feature. The current standard
92 is to name the config option CONFIG_FEATURE_<applet>_LONG_OPTIONS.
Mike Frysingerfb6d22c2005-05-11 00:02:39 +000093
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000094const char *bb_opt_complementally
Mike Frysingerfb6d22c2005-05-11 00:02:39 +000095
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +000096 ":" The colon (":") is used to separate groups of two or more chars
97 and/or groups of chars and special characters (stating some
98 conditions to be checked).
Mike Frysingere5d0bde2005-05-10 23:48:35 +000099
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000100 "abc" If groups of two or more chars are specified, the first char
101 is the main option and the other chars are secondary options.
102 Their flags will be turned on if the main option is found even
103 if they are not specifed on the command line. For example:
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000104
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000105 bb_opt_complementally = "abc";
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000106
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000107 flags = bb_getopt_ulflags(argc, argv, "abcd")
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000108
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000109 If getopt() finds "-a" on the command line, then
110 bb_getopt_ulflags's return value will be as if "-a -b -c" were
111 found.
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000112
Bernhard Reutner-Fischer43fb3fc2005-10-05 12:23:13 +0000113 "ww" Adjacent double options have a counter associated which indicates
"Vladimir N. Oleynik"d1b60782005-10-05 12:44:52 +0000114 the number of occurances of the option.
115 For example the ps applet needs:
"Vladimir N. Oleynik"be0ed3d2005-10-04 16:48:26 +0000116 if w is given once, GNU ps sets the width to 132,
117 if w is given more than once, it is "unlimited"
118
119 int w_counter = 0;
120 bb_opt_complementally = "ww";
Bernhard Reutner-Fischer43fb3fc2005-10-05 12:23:13 +0000121 bb_getopt_ulflags(argc, argv, "w", &w_counter);
"Vladimir N. Oleynik"be0ed3d2005-10-04 16:48:26 +0000122
Bernhard Reutner-Fischer43fb3fc2005-10-05 12:23:13 +0000123 if(w_counter)
"Vladimir N. Oleynik"be0ed3d2005-10-04 16:48:26 +0000124 width = (w_counter == 1) ? 132 : INT_MAX;
125 else
126 get_terminal_width(...&width...);
127
Bernhard Reutner-Fischer43fb3fc2005-10-05 12:23:13 +0000128 w_counter is a pointer to an integer. It has to be passed to
129 bb_getopt_ulflags() after all other option argument sinks.
130 For example: accept multiple -v to indicate the level of verbosity and
131 for each -b optarg, add optarg to my_b. Finally, if b is given, turn off
132 c and vice versa:
133
134 llist_t *my_b = NULL;
135 int verbose_level = 0;
Bernhard Reutner-Fischer120513c2005-10-05 12:28:55 +0000136 bb_opt_complementally = "vv:b*:b-c:c-b";
"Vladimir N. Oleynik"4a5ce082005-10-05 13:58:40 +0000137 f = bb_getopt_ulflags(argc, argv, "vb:c", &my_b, &verbose_level);
138 if((f & 2)) // -c after -b unset this -b flag
139 while (my_b) { dosomething_with(my_b->data) ; my_b = my_b->link; }
140 if(my_b) // but llist stored always if -b found
141 free_llist(my_b);
142 if (verbose_level) bb_printf("verbose level is %d\n", verbose_level);
"Vladimir N. Oleynik"be0ed3d2005-10-04 16:48:26 +0000143
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000144Special characters:
145
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000146 "-" A dash between two options causes the second of the two
"Vladimir N. Oleynik"45a8ed82005-09-06 16:08:33 +0000147 to be unset (and ignored or triggered) if it is given on
148 the command line.
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000149
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000150 For example:
151 The du applet has the options "-s" and "-d depth". If
152 bb_getopt_ulflags finds -s, then -d is unset or if it finds -d
153 then -s is unset. (Note: busybox implements the GNU
154 "--max-depth" option as "-d".) To obtain this behavior, you
155 set bb_opt_complementally = "s-d:d-s". Only one flag value is
156 added to bb_getopt_ulflags's return value depending on the
157 position of the options on the command line. If one of the
158 two options requires an argument pointer (":" in applet_opts
159 as in "d:") optarg is set accordingly.
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000160
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000161 char *smax_print_depth;
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000162
"Vladimir N. Oleynik"45a8ed82005-09-06 16:08:33 +0000163 bb_opt_complementally = "s-d:d-s:x-x";
164 opt = bb_getopt_ulflags(argc, argv, "sd:x", &smax_print_depth);
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000165
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000166 if (opt & 2) {
167 max_print_depth = bb_xgetularg10_bnd(smax_print_depth,
168 0, INT_MAX);
169 }
"Vladimir N. Oleynik"45a8ed82005-09-06 16:08:33 +0000170 if(opt & 4)
171 printf("Detected odd -x usaging\n");
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000172
Bernhard Reutner-Fischer43fb3fc2005-10-05 12:23:13 +0000173 "-" A minus as the first char in a bb_opt_complementally group means to
174 convert the arguments as option.
175 For example:
176
"Vladimir N. Oleynik"d1b60782005-10-05 12:44:52 +0000177 bb_opt_complementally = "-:w-x:x-w";
178 bb_getopt_ulflags(argc, argv, "wx");
Bernhard Reutner-Fischer43fb3fc2005-10-05 12:23:13 +0000179
"Vladimir N. Oleynik"4a5ce082005-10-05 13:58:40 +0000180 Allows any arguments to be given without a dash (./program w x)
181 as well as with a dash (./program -x). Why unset -w see above.
Bernhard Reutner-Fischer43fb3fc2005-10-05 12:23:13 +0000182
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000183 "~" A tilde between two options, or between an option and a group
184 of options, means that they are mutually exclusive. Unlike
185 the "-" case above, an error will be forced if the options
186 are used together.
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000187
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000188 For example:
189 The cut applet must have only one type of list specified, so
190 -b, -c and -f are mutally exclusive and should raise an error
191 if specified together. In this case you must set
192 bb_opt_complementally = "b~cf:c~bf:f~bc". If two of the
193 mutually exclusive options are found, bb_getopt_ulflags's
194 return value will have the error flag set (BB_GETOPT_ERROR) so
195 that we can check for it:
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000196
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000197 if (flags & BB_GETOPT_ERROR)
198 bb_show_usage();
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000199
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000200 "?" A "ask" as the first char in a bb_opt_complementally group give:
201 if previous point set BB_GETOPT_ERROR, don`t return and
202 call previous example internally
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000203
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000204 "*" A star after a char in bb_opt_complementally means that the
205 option can occur multiple times:
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000206
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000207 For example:
208 The grep applet can have one or more "-e pattern" arguments.
209 In this case you should use bb_getopt_ulflags() as follows:
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000210
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000211 llist_t *patterns = NULL;
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000212
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000213 (this pointer must be initializated to NULL if the list is empty
214 as required by *llist_add_to(llist_t *old_head, char *new_item).)
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000215
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000216 bb_opt_complementally = "e*";
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000217
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000218 bb_getopt_ulflags(argc, argv, "e:", &patterns);
219 $ grep -e user -e root /etc/passwd
220 root:x:0:0:root:/root:/bin/bash
221 user:x:500:500::/home/user:/bin/bash
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000222
223 "?" A "ask" between main and group options causes the second of the two
224 to be depending required if first is given on the command line.
225 For example from "id" applet:
226
227 // Don't allow -n -r -rn -ug -rug -nug -rnug
228 bb_opt_complementally = "?u~g:g~u:r?ug:n?ug";
229 flags = bb_getopt_ulflags(argc, argv, "rnug");
230
231 This example allowed only:
232 $ id; id -u; id -g; id -ru; id -nu; id -rg; id -ng; id -rnu; id -rng
233
234 "?" A "ask" between equivalent options in bb_opt_complementally means
235 requires this option always, checked after switch off from
236 complementally logic
237 For example from "start-stop-daemon" applet:
238
239 // Don't allow -KS -SK, but -S or -K required
240 bb_opt_complementally = "?:K?K:S?S:K~S:S~K";
241 flags = bb_getopt_ulflags(argc, argv, "KS...);
242
Eric Andersen8876fb22003-06-20 09:01:58 +0000243*/
244
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000245const char *bb_opt_complementally;
Eric Andersen8876fb22003-06-20 09:01:58 +0000246
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000247typedef struct {
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000248 int opt;
249 int list_flg;
Eric Andersen8876fb22003-06-20 09:01:58 +0000250 unsigned long switch_on;
251 unsigned long switch_off;
252 unsigned long incongruously;
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000253 unsigned long requires;
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000254 void **optarg; /* char **optarg or llist_t **optarg */
"Vladimir N. Oleynik"be0ed3d2005-10-04 16:48:26 +0000255 int *counter;
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000256} t_complementally;
Eric Andersen8876fb22003-06-20 09:01:58 +0000257
258/* You can set bb_applet_long_options for parse called long options */
259
260static const struct option bb_default_long_options[] = {
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000261/* { "help", 0, NULL, '?' }, */
Eric Andersen8876fb22003-06-20 09:01:58 +0000262 { 0, 0, 0, 0 }
263};
264
265const struct option *bb_applet_long_options = bb_default_long_options;
266
Eric Andersen8876fb22003-06-20 09:01:58 +0000267unsigned long
268bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
Manuel Novoa III cad53642003-03-19 09:13:01 +0000269{
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000270 unsigned long flags = 0;
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000271 unsigned long requires = 0;
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000272 t_complementally complementally[sizeof(flags) * 8 + 1];
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000273 int c;
274 const unsigned char *s;
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000275 t_complementally *on_off;
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000276 va_list p;
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000277 const struct option *l_o;
"Vladimir N. Oleynik"35939d92005-10-05 10:52:47 +0000278 unsigned long trigger;
279 char **pargv = NULL;
Manuel Novoa III cad53642003-03-19 09:13:01 +0000280
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000281#define SHOW_USAGE_IF_ERROR 1
282#define ARGV_IS_OPTS 2
283 int spec_flgs = 0;
284
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000285 va_start (p, applet_opts);
Eric Andersen8876fb22003-06-20 09:01:58 +0000286
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000287 /* skip GNU extension */
288 s = applet_opts;
289 if(*s == '+' || *s == '-')
Eric Andersen8876fb22003-06-20 09:01:58 +0000290 s++;
Manuel Novoa III cad53642003-03-19 09:13:01 +0000291
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000292 c = 0;
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000293 on_off = complementally;
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000294 memset(on_off, 0, sizeof(complementally));
295
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000296 for (; *s; s++) {
"Vladimir N. Oleynik"be0ed3d2005-10-04 16:48:26 +0000297 if(c >= (int)(sizeof(flags)*8))
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000298 break;
299 on_off->opt = *s;
300 on_off->switch_on = (1 << c);
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000301 if (s[1] == ':') {
302 on_off->optarg = va_arg (p, void **);
303 do
304 s++;
305 while (s[1] == ':');
306 }
307 on_off++;
308 c++;
Eric Andersen8876fb22003-06-20 09:01:58 +0000309 }
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000310
311 for(l_o = bb_applet_long_options; l_o->name; l_o++) {
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000312 if(l_o->flag)
313 continue;
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000314 for(on_off = complementally; on_off->opt != 0; on_off++)
315 if(on_off->opt == l_o->val)
316 break;
317 if(on_off->opt == 0) {
"Vladimir N. Oleynik"be0ed3d2005-10-04 16:48:26 +0000318 if(c >= (int)(sizeof(flags)*8))
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000319 break;
320 on_off->opt = l_o->val;
321 on_off->switch_on = (1 << c);
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000322 if(l_o->has_arg != no_argument)
323 on_off->optarg = va_arg (p, void **);
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000324 c++;
325 }
326 }
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000327 c = 0;
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000328 for (s = bb_opt_complementally; s && *s; s++) {
329 t_complementally *pair;
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000330
331 if (*s == ':') {
332 c = 0;
333 continue;
334 }
335 if (c)
336 continue;
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000337 if(*s == '?') {
338 spec_flgs |= SHOW_USAGE_IF_ERROR;
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000339 continue;
340 }
"Vladimir N. Oleynik"35939d92005-10-05 10:52:47 +0000341 if(*s == '-') {
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000342 spec_flgs |= ARGV_IS_OPTS;
"Vladimir N. Oleynik"35939d92005-10-05 10:52:47 +0000343 continue;
344 }
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000345 for (on_off = complementally; on_off->opt; on_off++)
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000346 if (on_off->opt == *s)
347 break;
348 pair = on_off;
349 for(s++; *s && *s != ':'; s++) {
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000350 if (*s == '-' || *s == '~' || *s == '?') {
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000351 c = *s;
352 } else if(*s == '*') {
353 pair->list_flg++;
354 } else {
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000355 unsigned long *pair_switch;
356
357 switch(c) {
358 case '-':
359 pair_switch = &(pair->switch_off);
360 break;
361 case '~':
362 pair_switch = &(pair->incongruously);
363 break;
364 case '?':
365 pair_switch = &(pair->requires);
366 break;
367 default:
368 pair_switch = &(pair->switch_on);
369 }
"Vladimir N. Oleynik"35939d92005-10-05 10:52:47 +0000370 for (on_off = complementally; on_off->opt; on_off++)
371 if (on_off->opt == *s) {
372 if(pair_switch == &(on_off->switch_on))
373 on_off->counter = va_arg (p, int *);
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000374 else if(pair_switch == &(on_off->requires))
375 requires |= on_off->switch_on;
"Vladimir N. Oleynik"35939d92005-10-05 10:52:47 +0000376 else
377 *pair_switch |= on_off->switch_on;
378 break;
379 }
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000380 }
381 }
382 s--;
Eric Andersen8876fb22003-06-20 09:01:58 +0000383 }
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000384
385 while ((c = getopt_long (argc, argv, applet_opts,
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000386 bb_applet_long_options, NULL)) >= 0) {
"Vladimir N. Oleynik"45a8ed82005-09-06 16:08:33 +0000387
"Vladimir N. Oleynik"35939d92005-10-05 10:52:47 +0000388loop_arg_is_opt:
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000389 for (on_off = complementally; on_off->opt != c; on_off++) {
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000390 /* c==0 if long opt have non NULL flag */
391 if(on_off->opt == 0 && c != 0)
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000392 bb_show_usage ();
393 }
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000394 if(flags & on_off->incongruously) {
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000395 if((spec_flgs & SHOW_USAGE_IF_ERROR))
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000396 bb_show_usage ();
Mike Frysinger348e84c2005-05-11 00:39:03 +0000397 flags |= BB_GETOPT_ERROR;
"Vladimir N. Oleynik"27421a12005-09-05 14:46:07 +0000398 }
"Vladimir N. Oleynik"45a8ed82005-09-06 16:08:33 +0000399 trigger = on_off->switch_on & on_off->switch_off;
400 flags &= ~(on_off->switch_off ^ trigger);
401 flags |= on_off->switch_on ^ trigger;
402 flags ^= trigger;
"Vladimir N. Oleynik"be0ed3d2005-10-04 16:48:26 +0000403 if(on_off->counter)
404 (*(on_off->counter))++;
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000405 if(on_off->list_flg) {
406 *(llist_t **)(on_off->optarg) =
"Vladimir N. Oleynik"35939d92005-10-05 10:52:47 +0000407 llist_add_to(*(llist_t **)(on_off->optarg), optarg);
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000408 } else if (on_off->optarg) {
409 *(char **)(on_off->optarg) = optarg;
410 }
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000411 if(pargv != NULL)
"Vladimir N. Oleynik"35939d92005-10-05 10:52:47 +0000412 break;
413 }
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000414 if((spec_flgs & ARGV_IS_OPTS)) {
"Vladimir N. Oleynik"35939d92005-10-05 10:52:47 +0000415 /* process argv is option, for example "ps" applet */
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000416 if(pargv == NULL)
"Vladimir N. Oleynik"35939d92005-10-05 10:52:47 +0000417 pargv = argv + optind;
"Vladimir N. Oleynik"35939d92005-10-05 10:52:47 +0000418 while(*pargv) {
419 c = **pargv;
420 if(c == '\0') {
421 pargv++;
422 } else {
423 (*pargv)++;
424 goto loop_arg_is_opt;
425 }
426 }
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000427 }
"Vladimir N. Oleynik"064f04e2005-10-11 14:38:01 +0000428 /* check depending requires for given options */
429 for (on_off = complementally; on_off->opt; on_off++) {
430 if(on_off->requires && (flags & on_off->switch_on) &&
431 (flags & on_off->requires) == 0)
432 bb_show_usage ();
433 }
434 if(requires && (flags & requires) == 0)
435 bb_show_usage ();
Mike Frysinger2bf88a82005-04-18 22:42:58 +0000436 return flags;
Manuel Novoa III cad53642003-03-19 09:13:01 +0000437}