*
* Copyright (C) 2003-2005 Vladimir Oleynik <dzo@simtreas.ru>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
-#include <getopt.h>
-#include <string.h>
-#include <assert.h>
-#include <stdlib.h>
#include "libbb.h"
+#include <getopt.h>
-/* Documentation !
+/* Documentation
unsigned long
-bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
+bb_getopt_ulflags(int argc, char **argv, const char *applet_opts, ...)
+
+ The command line options must be declared in const char
+ *applet_opts as a string of chars, for example:
- The command line options must be declared in const char
- *applet_opts as a string of chars, for example:
+ flags = bb_getopt_ulflags(argc, argv, "rnug");
- flags = bb_getopt_ulflags(argc, argv, "rnug");
+ If one of the given options is found, a flag value is added to
+ the return value (an unsigned long).
- If one of the given options is found, a flag value is added to
- the return value (an unsigned long).
+ The flag value is determined by the position of the char in
+ applet_opts string. For example, in the above case:
- The flag value is determined by the position of the char in
- applet_opts string. For example, in the above case:
+ flags = bb_getopt_ulflags(argc, argv, "rnug");
- flags = bb_getopt_ulflags(argc, argv, "rnug");
+ "r" will add 1 (bit 0)
+ "n" will add 2 (bit 1)
+ "u will add 4 (bit 2)
+ "g" will add 8 (bit 3)
- "r" will add 1 (bit 1 : 0x01)
- "n" will add 2 (bit 2 : 0x02)
- "u will add 4 (bit 3 : 0x03)
- "g" will add 8 (bit 4 : 0x04)
+ and so on. You can also look at the return value as a bit
+ field and each option sets one bit.
- and so on. You can also look at the return value as a bit
- field and each option sets one of bits.
+ On exit, global variable optind is set so that if you
+ will do argc -= optind; argv += optind; then
+ argc will be equal to number of remaining non-option
+ arguments, first one would be in argv[0], next in argv[1] and so on
+ (options and their parameters will be moved into argv[]
+ positions prior to argv[optind]).
":" If one of the options requires an argument, then add a ":"
- after the char in applet_opts and provide a pointer to store
- the argument. For example:
+ after the char in applet_opts and provide a pointer to store
+ the argument. For example:
+
+ char *pointer_to_arg_for_a;
+ char *pointer_to_arg_for_b;
+ char *pointer_to_arg_for_c;
+ char *pointer_to_arg_for_d;
+
+ flags = bb_getopt_ulflags(argc, argv, "a:b:c:d:",
+ &pointer_to_arg_for_a, &pointer_to_arg_for_b,
+ &pointer_to_arg_for_c, &pointer_to_arg_for_d);
+
+ The type of the pointer (char* or llist_t*) may be controlled
+ by the "::" special separator that is set in the external string
+ bb_opt_complementally (see below for more info).
+
+ "::" If option can have an *optional* argument, then add a "::"
+ after its char in applet_opts and provide a pointer to store
+ the argument. Note that optional arguments _must_
+ immediately follow the option: -oparam, not -o param.
+
+ "+" If the first character in the applet_opts string is a plus,
+ then option processing will stop as soon as a non-option is
+ encountered in the argv array. Useful for applets like env
+ which should not process arguments to subprograms:
+ env -i ls -d /
+ Here we want env to process just the '-i', not the '-d'.
+
+const struct option *bb_applet_long_options
+
+ This struct allows you to define long options. The syntax for
+ declaring the array is just like that of getopt's longopts.
+ (see getopt(3))
+
+ static const struct option applet_long_options[] = {
+ //name,has_arg,flag,val
+ { "verbose", 0, 0, 'v' },
+ { 0, 0, 0, 0 }
+ };
+ bb_applet_long_options = applet_long_options;
+
+ The last member of struct option (val) typically is set to
+ matching short option from applet_opts. If there is no matching
+ char in applet_opts, then:
+ - return bit have next position after short options
+ - if has_arg is not "no_argument", use ptr for arg also
+ - bb_opt_complementally affects it too
+
+ Note: a good applet will make long options configurable via the
+ config process and not a required feature. The current standard
+ is to name the config option CONFIG_FEATURE_<applet>_LONG_OPTIONS.
- char *pointer_to_arg_for_a;
- char *pointer_to_arg_for_b;
- char *pointer_to_arg_for_c;
- char *pointer_to_arg_for_d;
+const char *bb_opt_complementally
- flags = bb_getopt_ulflags(argc, argv, "a:b:c:d:",
- &pointer_to_arg_for_a, &pointer_to_arg_for_b,
- &pointer_to_arg_for_c, &pointer_to_arg_for_d);
+ this should be bb_opt_complementary, but we'll just keep it as
+ bb_opt_complementally due to the Russian origins
- The type of the pointer (char* or llist_t *) may be controlled
- by the "*" special character that is set in the external string
- bb_opt_complementally (see below for more info).
+ ":" The colon (":") is used to separate groups of two or more chars
+ and/or groups of chars and special characters (stating some
+ conditions to be checked).
-static const struct option bb_default_long_options[]
+ "abc" If groups of two or more chars are specified, the first char
+ is the main option and the other chars are secondary options.
+ Their flags will be turned on if the main option is found even
+ if they are not specifed on the command line. For example:
- This struct allows you to define long options. The syntax for
- declaring the array is just like that of getopt's longopts.
- (see getopt(3))
+ bb_opt_complementally = "abc";
+ flags = bb_getopt_ulflags(argc, argv, "abcd")
- static const struct option applet_long_options[] = {
- { "verbose", 0, 0, v },
- { 0, 0, 0, 0 }
- };
- bb_applet_long_options = applet_long_options;
+ If getopt() finds "-a" on the command line, then
+ bb_getopt_ulflags's return value will be as if "-a -b -c" were
+ found.
- The last argument (val) can undefined from applet_opts.
- If you use this, then:
- - return bit have next position after short options
- - if has_arg is not "no_argument", use ptr for arg also
- - bb_opt_complementally have effects for this too
+ "ww" Adjacent double options have a counter associated which indicates
+ the number of occurences of the option.
+ For example the ps applet needs:
+ if w is given once, GNU ps sets the width to 132,
+ if w is given more than once, it is "unlimited"
+
+ int w_counter = 0;
+ bb_opt_complementally = "ww";
+ bb_getopt_ulflags(argc, argv, "w", &w_counter);
+ if (w_counter)
+ width = (w_counter == 1) ? 132 : INT_MAX;
+ else
+ get_terminal_width(...&width...);
+
+ w_counter is a pointer to an integer. It has to be passed to
+ bb_getopt_ulflags() after all other option argument sinks.
+
+ For example: accept multiple -v to indicate the level of verbosity
+ and for each -b optarg, add optarg to my_b. Finally, if b is given,
+ turn off c and vice versa:
+
+ llist_t *my_b = NULL;
+ int verbose_level = 0;
+ bb_opt_complementally = "vv:b::b-c:c-b";
+ f = bb_getopt_ulflags(argc, argv, "vb:c", &my_b, &verbose_level);
+ if (f & 2) // -c after -b unsets -b flag
+ while (my_b) { dosomething_with(my_b->data); my_b = my_b->link; }
+ if (my_b) // but llist is stored if -b is specified
+ free_llist(my_b);
+ if (verbose_level) bb_printf("verbose level is %d\n", verbose_level);
- Note: a good applet will make long options configurable via the
- config process and not a required feature. The current standard
- is to name the config option CONFIG_FEATURE_<applet>_LONG_OPTIONS.
+Special characters:
-const char *bb_opt_complementally
+ "-" A dash between two options causes the second of the two
+ to be unset (and ignored) if it is given on the command line.
+
+ [FIXME: what if they are the same? like "x-x"? Is it ever useful?]
+
+ For example:
+ The du applet has the options "-s" and "-d depth". If
+ bb_getopt_ulflags finds -s, then -d is unset or if it finds -d
+ then -s is unset. (Note: busybox implements the GNU
+ "--max-depth" option as "-d".) To obtain this behavior, you
+ set bb_opt_complementally = "s-d:d-s". Only one flag value is
+ added to bb_getopt_ulflags's return value depending on the
+ position of the options on the command line. If one of the
+ two options requires an argument pointer (":" in applet_opts
+ as in "d:") optarg is set accordingly.
- ":" The colon (":") is used to separate groups of two or more chars
- and/or groups of chars and special characters (stating some
- conditions to be checked).
+ char *smax_print_depth;
- "abc" If groups of two or more chars are specified, the first char
- is the main option and the other chars are secondary options.
- Their flags will be turned on if the main option is found even
- if they are not specifed on the command line. For example:
+ bb_opt_complementally = "s-d:d-s:x-x";
+ opt = bb_getopt_ulflags(argc, argv, "sd:x", &smax_print_depth);
+
+ if (opt & 2)
+ max_print_depth = atoi(smax_print_depth);
+ if (opt & 4)
+ printf("Detected odd -x usage\n");
- bb_opt_complementally = "abc";
+ "-" A dash as the first char in a bb_opt_complementally group forces
+ all arguments to be treated as options, even if they have
+ no leading dashes. Next char in this case can't be a digit (0-9),
+ use ':' or end of line. For example:
- flags = bb_getopt_ulflags(argc, argv, "abcd")
+ bb_opt_complementally = "-:w-x:x-w";
+ bb_getopt_ulflags(argc, argv, "wx");
- If getopt() finds "-a" on the command line, then
- bb_getopt_ulflags's return value will be as if "-a -b -c" were
- found.
+ Allows any arguments to be given without a dash (./program w x)
+ as well as with a dash (./program -x).
- "ww" Adjacent double options have a counter associated which indicates
- the number of occurances of the option.
- For example the ps applet needs:
- if w is given once, GNU ps sets the width to 132,
- if w is given more than once, it is "unlimited"
-
- int w_counter = 0;
- bb_opt_complementally = "ww";
- bb_getopt_ulflags(argc, argv, "w", &w_counter);
-
- if(w_counter)
- width = (w_counter == 1) ? 132 : INT_MAX;
- else
- get_terminal_width(...&width...);
-
- w_counter is a pointer to an integer. It has to be passed to
- bb_getopt_ulflags() after all other option argument sinks.
- For example: accept multiple -v to indicate the level of verbosity and
- for each -b optarg, add optarg to my_b. Finally, if b is given, turn off
- c and vice versa:
-
- llist_t *my_b = NULL;
- int verbose_level = 0;
- bb_opt_complementally = "vv:b*:b-c:c-b";
- f = bb_getopt_ulflags(argc, argv, "vb:c", &my_b, &verbose_level);
- if((f & 2)) // -c after -b unset this -b flag
- while (my_b) { dosomething_with(my_b->data) ; my_b = my_b->link; }
- if(my_b) // but llist stored always if -b found
- free_llist(my_b);
- if (verbose_level) bb_printf("verbose level is %d\n", verbose_level);
+ "-N" A dash as the first char in a bb_opt_complementally group followed
+ by a single digit (0-9) means that at least N non-option
+ arguments must be present on the command line
-Special characters:
+ "V-" An option with dash before colon or end-of-line results in
+ bb_show_usage being called if this option is encountered.
+ This is typically used to implement "print verbose usage message
+ and exit" option.
- "-" A dash between two options causes the second of the two
- to be unset (and ignored or triggered) if it is given on
- the command line.
-
- For example:
- The du applet has the options "-s" and "-d depth". If
- bb_getopt_ulflags finds -s, then -d is unset or if it finds -d
- then -s is unset. (Note: busybox implements the GNU
- "--max-depth" option as "-d".) To obtain this behavior, you
- set bb_opt_complementally = "s-d:d-s". Only one flag value is
- added to bb_getopt_ulflags's return value depending on the
- position of the options on the command line. If one of the
- two options requires an argument pointer (":" in applet_opts
- as in "d:") optarg is set accordingly.
-
- char *smax_print_depth;
-
- bb_opt_complementally = "s-d:d-s:x-x";
- opt = bb_getopt_ulflags(argc, argv, "sd:x", &smax_print_depth);
-
- if (opt & 2) {
- max_print_depth = bb_xgetularg10_bnd(smax_print_depth,
- 0, INT_MAX);
- }
- if(opt & 4)
- printf("Detected odd -x usaging\n");
-
- "-" A minus as the first char in a bb_opt_complementally group means to
- convert the arguments as option.
- For example:
-
- bb_opt_complementally = "-:w-x:x-w";
- bb_getopt_ulflags(argc, argv, "wx");
-
- Allows any arguments to be given without a dash (./program w x)
- as well as with a dash (./program -x). Why unset -w see above.
-
- "~" A tilde between two options, or between an option and a group
- of options, means that they are mutually exclusive. Unlike
- the "-" case above, an error will be forced if the options
- are used together.
-
- For example:
- The cut applet must have only one type of list specified, so
- -b, -c and -f are mutally exclusive and should raise an error
- if specified together. In this case you must set
- bb_opt_complementally = "b~cf:c~bf:f~bc". If two of the
- mutually exclusive options are found, bb_getopt_ulflags's
- return value will have the error flag set (BB_GETOPT_ERROR) so
- that we can check for it:
-
- if (flags & BB_GETOPT_ERROR)
- bb_show_usage();
+ "--" A double dash between two options, or between an option and a group
+ of options, means that they are mutually exclusive. Unlike
+ the "-" case above, an error will be forced if the options
+ are used together.
+
+ For example:
+ The cut applet must have only one type of list specified, so
+ -b, -c and -f are mutally exclusive and should raise an error
+ if specified together. In this case you must set
+ bb_opt_complementally = "b--cf:c--bf:f--bc". If two of the
+ mutually exclusive options are found, bb_getopt_ulflags's
+ return value will have the error flag set (BB_GETOPT_ERROR) so
+ that we can check for it:
+
+ if (flags & BB_GETOPT_ERROR)
+ bb_show_usage();
+
+ "x--x" Variation of the above, it means that -x option should occur
+ at most once.
+
+ "?" A "?" as the first char in a bb_opt_complementally group means:
+ if BB_GETOPT_ERROR is detected, don't return, call bb_show_usage
+ and exit instead. Next char after '?' can't be a digit.
- "!" If previous point set BB_GETOPT_ERROR, don`t return and call
- previous example internally
+ "?N" A "?" as the first char in a bb_opt_complementally group followed
+ by a single digit (0-9) means that at most N arguments must be present
+ on the command line.
- "*" A star after a char in bb_opt_complementally means that the
- option can occur multiple times:
+ "::" A double colon after a char in bb_opt_complementally means that the
+ option can occur multiple times. Each occurrence will be saved as
+ a llist_t element instead of char*.
- For example:
- The grep applet can have one or more "-e pattern" arguments.
- In this case you should use bb_getopt_ulflags() as follows:
+ For example:
+ The grep applet can have one or more "-e pattern" arguments.
+ In this case you should use bb_getopt_ulflags() as follows:
- llist_t *patterns = NULL;
+ llist_t *patterns = NULL;
- (this pointer must be initializated to NULL if the list is empty
- as required by *llist_add_to(llist_t *old_head, char *new_item).)
+ (this pointer must be initializated to NULL if the list is empty
+ as required by *llist_add_to(llist_t *old_head, char *new_item).)
- bb_opt_complementally = "e*";
+ bb_opt_complementally = "e::";
- bb_getopt_ulflags(argc, argv, "e:", &patterns);
- $ grep -e user -e root /etc/passwd
- root:x:0:0:root:/root:/bin/bash
- user:x:500:500::/home/user:/bin/bash
+ bb_getopt_ulflags(argc, argv, "e:", &patterns);
+ $ grep -e user -e root /etc/passwd
+ root:x:0:0:root:/root:/bin/bash
+ user:x:500:500::/home/user:/bin/bash
+
+ "--" A double dash at the beginning of bb_opt_complementally means the
+ argv[1] string should always be treated as options, even if it isn't
+ prefixed with a "-". This is useful for special syntax in applets
+ such as "ar" and "tar":
+ tar xvf foo.tar
+
+ "?" An "?" between an option and a group of options means that
+ at least one of them is required to occur if the first option
+ occurs in preceding command line arguments.
+
+ For example from "id" applet:
+
+ // Don't allow -n -r -rn -ug -rug -nug -rnug
+ bb_opt_complementally = "r?ug:n?ug:?u--g:g--u";
+ flags = bb_getopt_ulflags(argc, argv, "rnug");
+
+ This example allowed only:
+ $ id; id -u; id -g; id -ru; id -nu; id -rg; id -ng; id -rnu; id -rng
+
+ "X" A bb_opt_complementally group with just a single letter means
+ that this option is required. If more than one such group exists,
+ at least one option is required to occur (not all of them).
+ For example from "start-stop-daemon" applet:
+
+ // Don't allow -KS -SK, but -S or -K is required
+ bb_opt_complementally = "K:S:?K--S:S--K";
+ flags = bb_getopt_ulflags(argc, argv, "KS...);
+
+
+ Don't forget to use ':'. For example, "?322-22-23X-x-a"
+ is interpreted as "?3:22:-2:2-2:2-3Xa:2--x" -
+ max 3 args; count uses of '-2'; min 2 args; if there is
+ a '-2' option then unset '-3', '-X' and '-a'; if there is
+ a '-2' and after it a '-x' then error out.
*/
+/* this should be bb_opt_complementary, but we'll just keep it as
+ bb_opt_complementally due to the Russian origins */
const char *bb_opt_complementally;
typedef struct {
- unsigned char opt;
- char list_flg;
+ int opt;
+ int list_flg;
unsigned long switch_on;
unsigned long switch_off;
unsigned long incongruously;
+ unsigned long requires;
void **optarg; /* char **optarg or llist_t **optarg */
int *counter;
} t_complementally;
/* You can set bb_applet_long_options for parse called long options */
-
+#if ENABLE_GETOPT_LONG
static const struct option bb_default_long_options[] = {
/* { "help", 0, NULL, '?' }, */
{ 0, 0, 0, 0 }
};
const struct option *bb_applet_long_options = bb_default_long_options;
+#endif
unsigned long
-bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
+bb_getopt_ulflags(int argc, char **argv, const char *applet_opts, ...)
{
unsigned long flags = 0;
+ unsigned long requires = 0;
t_complementally complementally[sizeof(flags) * 8 + 1];
int c;
const unsigned char *s;
t_complementally *on_off;
va_list p;
+#if ENABLE_GETOPT_LONG
const struct option *l_o;
- char flg_show_usage_if_error = 0;
- char flg_argv_is_opts = 0;
+#endif
unsigned long trigger;
char **pargv = NULL;
+ int min_arg = 0;
+ int max_arg = -1;
- va_start (p, applet_opts);
+#define SHOW_USAGE_IF_ERROR 1
+#define ALL_ARGV_IS_OPTS 2
+#define FIRST_ARGV_IS_OPT 4
+#define FREE_FIRST_ARGV_IS_OPT 8
+ int spec_flgs = 0;
- /* skip GNU extension */
- s = applet_opts;
- if(*s == '+' || *s == '-')
- s++;
+ va_start(p, applet_opts);
c = 0;
on_off = complementally;
+ memset(on_off, 0, sizeof(complementally));
+
+ /* skip GNU extension */
+ s = (const unsigned char *)applet_opts;
+ if (*s == '+' || *s == '-')
+ s++;
for (; *s; s++) {
- if(c >= (int)(sizeof(flags)*8))
+ if (c >= (int)(sizeof(flags)*8))
break;
on_off->opt = *s;
on_off->switch_on = (1 << c);
- on_off->list_flg = 0;
- on_off->switch_off = 0;
- on_off->incongruously = 0;
- on_off->optarg = NULL;
- on_off->counter = NULL;
if (s[1] == ':') {
- on_off->optarg = va_arg (p, void **);
+ on_off->optarg = va_arg(p, void **);
do
s++;
while (s[1] == ':');
on_off++;
c++;
}
- on_off->opt = 0;
- for(l_o = bb_applet_long_options; l_o->name; l_o++) {
- for(on_off = complementally; on_off->opt != 0; on_off++)
- if(on_off->opt == l_o->val)
+#if ENABLE_GETOPT_LONG
+ for (l_o = bb_applet_long_options; l_o->name; l_o++) {
+ if (l_o->flag)
+ continue;
+ for (on_off = complementally; on_off->opt != 0; on_off++)
+ if (on_off->opt == l_o->val)
break;
- if(on_off->opt == 0) {
- if(c >= (int)(sizeof(flags)*8))
+ if (on_off->opt == 0) {
+ if (c >= (int)(sizeof(flags)*8))
break;
on_off->opt = l_o->val;
on_off->switch_on = (1 << c);
- on_off->list_flg = 0;
- on_off->switch_off = 0;
- on_off->incongruously = 0;
- on_off->counter = NULL;
- if(l_o->has_arg != no_argument)
- on_off->optarg = va_arg (p, void **);
- else
- on_off->optarg = NULL;
- on_off++;
- on_off->opt = 0;
+ if (l_o->has_arg != no_argument)
+ on_off->optarg = va_arg(p, void **);
c++;
}
}
- c = 0;
- for (s = bb_opt_complementally; s && *s; s++) {
+#endif /* ENABLE_GETOPT_LONG */
+ for (s = (const unsigned char *)bb_opt_complementally; s && *s; s++) {
t_complementally *pair;
+ unsigned long *pair_switch;
- if (*s == ':') {
- c = 0;
- continue;
- }
- if (c)
+ if (*s == ':')
continue;
- if(*s == '!') {
- flg_show_usage_if_error = '!';
+ c = s[1];
+ if (*s == '?') {
+ if (c < '0' || c > '9') {
+ spec_flgs |= SHOW_USAGE_IF_ERROR;
+ } else {
+ max_arg = c - '0';
+ s++;
+ }
continue;
}
- if(*s == '-') {
- flg_argv_is_opts = '-';
+ if (*s == '-') {
+ if (c < '0' || c > '9') {
+ if (c == '-') {
+ spec_flgs |= FIRST_ARGV_IS_OPT;
+ s++;
+ } else
+ spec_flgs |= ALL_ARGV_IS_OPTS;
+ } else {
+ min_arg = c - '0';
+ s++;
+ }
continue;
}
for (on_off = complementally; on_off->opt; on_off++)
if (on_off->opt == *s)
break;
+ if (c == ':' && s[2] == ':') {
+ on_off->list_flg++;
+ continue;
+ }
+ if (c == ':' || c == '\0') {
+ requires |= on_off->switch_on;
+ continue;
+ }
+ if (c == '-' && (s[2] == ':' || s[2] == '\0')) {
+ flags |= on_off->switch_on;
+ on_off->incongruously |= on_off->switch_on;
+ s++;
+ continue;
+ }
+ if (c == *s) {
+ on_off->counter = va_arg(p, int *);
+ s++;
+ }
pair = on_off;
- for(s++; *s && *s != ':'; s++) {
- if (*s == '-' || *s == '~') {
- c = *s;
- } else if(*s == '*') {
- pair->list_flg++;
+ pair_switch = &(pair->switch_on);
+ for (s++; *s && *s != ':'; s++) {
+ if (*s == '?') {
+ pair_switch = &(pair->requires);
+ } else if (*s == '-') {
+ if (pair_switch == &(pair->switch_off))
+ pair_switch = &(pair->incongruously);
+ else
+ pair_switch = &(pair->switch_off);
} else {
- unsigned long *pair_switch = &(pair->switch_on);
- if(c)
- pair_switch = c == '-' ? &(pair->switch_off) : &(pair->incongruously);
- for (on_off = complementally; on_off->opt; on_off++)
- if (on_off->opt == *s) {
- if(pair_switch == &(on_off->switch_on))
- on_off->counter = va_arg (p, int *);
- else
- *pair_switch |= on_off->switch_on;
- break;
- }
+ for (on_off = complementally; on_off->opt; on_off++)
+ if (on_off->opt == *s) {
+ *pair_switch |= on_off->switch_on;
+ break;
+ }
}
}
s--;
}
-
- while ((c = getopt_long (argc, argv, applet_opts,
- bb_applet_long_options, NULL)) > 0) {
-
+ va_end (p);
+
+#if ENABLE_AR || ENABLE_TAR
+ if (spec_flgs & FIRST_ARGV_IS_OPT) {
+ if (argv[1] && argv[1][0] != '-' && argv[1][0] != '\0') {
+ argv[1] = xasprintf("-%s", argv[1]);
+ if (ENABLE_FEATURE_CLEAN_UP)
+ spec_flgs |= FREE_FIRST_ARGV_IS_OPT;
+ }
+ }
+#endif
+#if ENABLE_GETOPT_LONG
+ while ((c = getopt_long(argc, argv, applet_opts,
+ bb_applet_long_options, NULL)) >= 0) {
+#else
+ while ((c = getopt(argc, argv, applet_opts)) >= 0) {
+#endif /* ENABLE_GETOPT_LONG */
loop_arg_is_opt:
for (on_off = complementally; on_off->opt != c; on_off++) {
- if(!on_off->opt)
- bb_show_usage ();
+ /* c==0 if long opt have non NULL flag */
+ if (on_off->opt == 0 && c != 0)
+ bb_show_usage();
}
- if(flags & on_off->incongruously) {
- if(flg_show_usage_if_error)
- bb_show_usage ();
+ if (flags & on_off->incongruously) {
+ if ((spec_flgs & SHOW_USAGE_IF_ERROR))
+ bb_show_usage();
flags |= BB_GETOPT_ERROR;
}
trigger = on_off->switch_on & on_off->switch_off;
flags &= ~(on_off->switch_off ^ trigger);
flags |= on_off->switch_on ^ trigger;
flags ^= trigger;
- if(on_off->counter)
+ if (on_off->counter)
(*(on_off->counter))++;
- if(on_off->list_flg) {
- *(llist_t **)(on_off->optarg) =
- llist_add_to(*(llist_t **)(on_off->optarg), optarg);
+ if (on_off->list_flg) {
+ llist_add_to((llist_t **)(on_off->optarg), optarg);
} else if (on_off->optarg) {
*(char **)(on_off->optarg) = optarg;
}
- if(flg_argv_is_opts == 'p')
+ if (pargv != NULL)
break;
}
- if(flg_argv_is_opts) {
+
+ if (spec_flgs & ALL_ARGV_IS_OPTS) {
/* process argv is option, for example "ps" applet */
- if(flg_argv_is_opts == '-') {
- flg_argv_is_opts = 'p';
+ if (pargv == NULL)
pargv = argv + optind;
- }
- while(*pargv) {
+ while (*pargv) {
c = **pargv;
- if(c == '\0') {
+ if (c == '\0') {
pargv++;
} else {
(*pargv)++;
}
}
+#if (ENABLE_AR || ENABLE_TAR) && ENABLE_FEATURE_CLEAN_UP
+ if (spec_flgs & FREE_FIRST_ARGV_IS_OPT)
+ free(argv[1]);
+#endif
+ /* check depending requires for given options */
+ for (on_off = complementally; on_off->opt; on_off++) {
+ if (on_off->requires && (flags & on_off->switch_on) &&
+ (flags & on_off->requires) == 0)
+ bb_show_usage();
+ }
+ if (requires && (flags & requires) == 0)
+ bb_show_usage();
+ argc -= optind;
+ if (argc < min_arg || (max_arg >= 0 && argc > max_arg))
+ bb_show_usage();
return flags;
}
projects / oweals / busybox.git / blobdiff