getopt_ulflags: formatting fixes
This commit is contained in:
Denis Vlasenko
parent
6248a734e2
commit
b02ef82c99
@ -13,7 +13,7 @@
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/* Documentation
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unsigned long
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bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
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bb_getopt_ulflags(int argc, char **argv, const char *applet_opts, ...)
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The command line options must be declared in const char
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*applet_opts as a string of chars, for example:
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@ -74,6 +74,7 @@ const struct option *bb_applet_long_options
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(see getopt(3))
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static const struct option applet_long_options[] = {
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//name,has_arg,flag,val
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{ "verbose", 0, 0, 'v' },
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{ 0, 0, 0, 0 }
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};
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@ -120,7 +121,7 @@ const char *bb_opt_complementally
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int w_counter = 0;
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bb_opt_complementally = "ww";
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bb_getopt_ulflags(argc, argv, "w", &w_counter);
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if(w_counter)
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if (w_counter)
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width = (w_counter == 1) ? 132 : INT_MAX;
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else
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get_terminal_width(...&width...);
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@ -136,11 +137,11 @@ const char *bb_opt_complementally
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int verbose_level = 0;
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bb_opt_complementally = "vv:b::b-c:c-b";
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f = bb_getopt_ulflags(argc, argv, "vb:c", &my_b, &verbose_level);
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if(f & 2) // -c after -b unsets -b flag
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while(my_b) { dosomething_with(my_b->data); my_b = my_b->link; }
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if(my_b) // but llist is stored if -b is specified
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if (f & 2) // -c after -b unsets -b flag
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while (my_b) { dosomething_with(my_b->data); my_b = my_b->link; }
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if (my_b) // but llist is stored if -b is specified
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free_llist(my_b);
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if(verbose_level) bb_printf("verbose level is %d\n", verbose_level);
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if (verbose_level) bb_printf("verbose level is %d\n", verbose_level);
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Special characters:
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@ -207,6 +208,9 @@ Special characters:
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if (flags & BB_GETOPT_ERROR)
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bb_show_usage();
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"x--x" Variation of the above, it means that -x option should occur
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at most once.
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"?" A "?" as the first char in a bb_opt_complementally group means:
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if BB_GETOPT_ERROR is detected, don't return, call bb_show_usage
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and exit instead. Next char after '?' can't be a digit.
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@ -255,7 +259,7 @@ Special characters:
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$ id; id -u; id -g; id -ru; id -nu; id -rg; id -ng; id -rnu; id -rng
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"X" A bb_opt_complementally group with just a single letter means
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that this this option is required. If more than one such group exists,
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that this option is required. If more than one such group exists,
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at least one option is required to occur (not all of them).
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For example from "start-stop-daemon" applet:
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@ -263,9 +267,6 @@ Special characters:
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bb_opt_complementally = "K:S:?K--S:S--K";
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flags = bb_getopt_ulflags(argc, argv, "KS...);
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"x--x" give error if double or more used -x option
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Don't forget to use ':'. For example "?322-22-23X-x-a" is interpreted as
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"?3:22:-2:2-2:2-3Xa:2--x": max 3 args; count uses of '-2'; min 2 args;
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if there is a '-2' option then unset '-3', '-X' and '-a'; if there is
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@ -299,7 +300,7 @@ const struct option *bb_applet_long_options = bb_default_long_options;
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#endif
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unsigned long
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bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
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bb_getopt_ulflags(int argc, char **argv, const char *applet_opts, ...)
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{
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unsigned long flags = 0;
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unsigned long requires = 0;
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@ -324,7 +325,7 @@ bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
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#define FREE_FIRST_ARGV_IS_OPT 8
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int spec_flgs = 0;
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va_start (p, applet_opts);
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va_start(p, applet_opts);
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c = 0;
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on_off = complementally;
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@ -332,15 +333,15 @@ bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
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/* skip GNU extension */
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s = (const unsigned char *)applet_opts;
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if(*s == '+' || *s == '-')
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if (*s == '+' || *s == '-')
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s++;
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for (; *s; s++) {
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if(c >= (int)(sizeof(flags)*8))
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if (c >= (int)(sizeof(flags)*8))
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break;
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on_off->opt = *s;
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on_off->switch_on = (1 << c);
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if (s[1] == ':') {
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on_off->optarg = va_arg (p, void **);
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on_off->optarg = va_arg(p, void **);
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do
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s++;
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while (s[1] == ':');
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@ -350,19 +351,19 @@ bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
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}
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#if ENABLE_GETOPT_LONG
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for(l_o = bb_applet_long_options; l_o->name; l_o++) {
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if(l_o->flag)
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for (l_o = bb_applet_long_options; l_o->name; l_o++) {
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if (l_o->flag)
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continue;
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for(on_off = complementally; on_off->opt != 0; on_off++)
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if(on_off->opt == l_o->val)
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for (on_off = complementally; on_off->opt != 0; on_off++)
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if (on_off->opt == l_o->val)
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break;
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if(on_off->opt == 0) {
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if(c >= (int)(sizeof(flags)*8))
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if (on_off->opt == 0) {
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if (c >= (int)(sizeof(flags)*8))
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break;
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on_off->opt = l_o->val;
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on_off->switch_on = (1 << c);
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if(l_o->has_arg != no_argument)
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on_off->optarg = va_arg (p, void **);
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if (l_o->has_arg != no_argument)
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on_off->optarg = va_arg(p, void **);
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c++;
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}
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}
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@ -374,8 +375,8 @@ bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
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if (*s == ':')
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continue;
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c = s[1];
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if(*s == '?') {
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if(c < '0' || c > '9') {
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if (*s == '?') {
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if (c < '0' || c > '9') {
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spec_flgs |= SHOW_USAGE_IF_ERROR;
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} else {
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max_arg = c - '0';
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@ -383,9 +384,9 @@ bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
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}
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continue;
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}
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if(*s == '-') {
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if(c < '0' || c > '9') {
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if(c == '-') {
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if (*s == '-') {
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if (c < '0' || c > '9') {
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if (c == '-') {
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spec_flgs |= FIRST_ARGV_IS_OPT;
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s++;
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} else
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@ -399,99 +400,99 @@ bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
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for (on_off = complementally; on_off->opt; on_off++)
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if (on_off->opt == *s)
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break;
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if(c == ':' && s[2] == ':') {
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if (c == ':' && s[2] == ':') {
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on_off->list_flg++;
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continue;
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}
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if(c == ':' || c == '\0') {
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if (c == ':' || c == '\0') {
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requires |= on_off->switch_on;
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continue;
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}
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if(c == '-' && (s[2] == ':' || s[2] == '\0')) {
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if (c == '-' && (s[2] == ':' || s[2] == '\0')) {
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flags |= on_off->switch_on;
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on_off->incongruously |= on_off->switch_on;
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s++;
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continue;
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}
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if(c == *s) {
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on_off->counter = va_arg (p, int *);
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if (c == *s) {
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on_off->counter = va_arg(p, int *);
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s++;
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}
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pair = on_off;
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pair_switch = &(pair->switch_on);
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for(s++; *s && *s != ':'; s++) {
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if(*s == '?') {
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for (s++; *s && *s != ':'; s++) {
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if (*s == '?') {
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pair_switch = &(pair->requires);
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} else if (*s == '-') {
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if(pair_switch == &(pair->switch_off))
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if (pair_switch == &(pair->switch_off))
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pair_switch = &(pair->incongruously);
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else
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pair_switch = &(pair->switch_off);
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} else {
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for (on_off = complementally; on_off->opt; on_off++)
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if (on_off->opt == *s) {
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*pair_switch |= on_off->switch_on;
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break;
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}
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for (on_off = complementally; on_off->opt; on_off++)
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if (on_off->opt == *s) {
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*pair_switch |= on_off->switch_on;
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break;
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}
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}
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}
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s--;
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}
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va_end (p);
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#if defined(CONFIG_AR) || defined(CONFIG_TAR)
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if((spec_flgs & FIRST_ARGV_IS_OPT)) {
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if(argv[1] && argv[1][0] != '-' && argv[1][0] != '\0') {
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#if ENABLE_AR || ENABLE_TAR
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if (spec_flgs & FIRST_ARGV_IS_OPT) {
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if (argv[1] && argv[1][0] != '-' && argv[1][0] != '\0') {
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argv[1] = xasprintf("-%s", argv[1]);
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if(ENABLE_FEATURE_CLEAN_UP)
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if (ENABLE_FEATURE_CLEAN_UP)
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spec_flgs |= FREE_FIRST_ARGV_IS_OPT;
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}
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}
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#endif
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#if ENABLE_GETOPT_LONG
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while ((c = getopt_long (argc, argv, applet_opts,
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while ((c = getopt_long(argc, argv, applet_opts,
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bb_applet_long_options, NULL)) >= 0) {
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#else
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while ((c = getopt (argc, argv, applet_opts)) >= 0) {
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while ((c = getopt(argc, argv, applet_opts)) >= 0) {
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#endif /* ENABLE_GETOPT_LONG */
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#ifdef CONFIG_PS
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#if ENABLE_PS
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loop_arg_is_opt:
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#endif
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for (on_off = complementally; on_off->opt != c; on_off++) {
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/* c==0 if long opt have non NULL flag */
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if(on_off->opt == 0 && c != 0)
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bb_show_usage ();
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if (on_off->opt == 0 && c != 0)
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bb_show_usage();
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}
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if(flags & on_off->incongruously) {
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if((spec_flgs & SHOW_USAGE_IF_ERROR))
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bb_show_usage ();
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if (flags & on_off->incongruously) {
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if ((spec_flgs & SHOW_USAGE_IF_ERROR))
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bb_show_usage();
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flags |= BB_GETOPT_ERROR;
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}
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trigger = on_off->switch_on & on_off->switch_off;
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flags &= ~(on_off->switch_off ^ trigger);
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flags |= on_off->switch_on ^ trigger;
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flags ^= trigger;
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if(on_off->counter)
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if (on_off->counter)
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(*(on_off->counter))++;
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if(on_off->list_flg) {
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if (on_off->list_flg) {
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llist_add_to((llist_t **)(on_off->optarg), optarg);
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} else if (on_off->optarg) {
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*(char **)(on_off->optarg) = optarg;
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}
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#ifdef CONFIG_PS
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if(pargv != NULL)
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#if ENABLE_PS
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if (pargv != NULL)
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break;
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#endif
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}
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#ifdef CONFIG_PS
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if((spec_flgs & ALL_ARGV_IS_OPTS)) {
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#if ENABLE_PS
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if (spec_flgs & ALL_ARGV_IS_OPTS) {
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/* process argv is option, for example "ps" applet */
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if(pargv == NULL)
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if (pargv == NULL)
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pargv = argv + optind;
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while(*pargv) {
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while (*pargv) {
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c = **pargv;
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if(c == '\0') {
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if (c == '\0') {
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pargv++;
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} else {
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(*pargv)++;
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@ -501,21 +502,20 @@ loop_arg_is_opt:
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}
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#endif
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#if (defined(CONFIG_AR) || defined(CONFIG_TAR)) && \
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defined(CONFIG_FEATURE_CLEAN_UP)
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if((spec_flgs & FREE_FIRST_ARGV_IS_OPT))
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#if (ENABLE_AR || ENABLE_TAR) && ENABLE_FEATURE_CLEAN_UP
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if (spec_flgs & FREE_FIRST_ARGV_IS_OPT)
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free(argv[1]);
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#endif
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/* check depending requires for given options */
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for (on_off = complementally; on_off->opt; on_off++) {
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if(on_off->requires && (flags & on_off->switch_on) &&
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if (on_off->requires && (flags & on_off->switch_on) &&
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(flags & on_off->requires) == 0)
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bb_show_usage ();
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bb_show_usage();
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}
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if(requires && (flags & requires) == 0)
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bb_show_usage ();
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if (requires && (flags & requires) == 0)
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bb_show_usage();
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argc -= optind;
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if(argc < min_arg || (max_arg >= 0 && argc > max_arg))
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bb_show_usage ();
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if (argc < min_arg || (max_arg >= 0 && argc > max_arg))
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bb_show_usage();
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return flags;
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}
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