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- use complementally '!' to '?' - 'ask' is best 'free' char for this.

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- more long opt compatibility, can set flag for long opt struct now
- more logic: check opt-depend requires and global requires, special for 'id' and 'start-stop-daemon' applets.
This commit is contained in:
"Vladimir N. Oleynik" 2005-10-11 14:38:01 +00:00
parent ff567f7943
commit 064f04e7e2
9 changed files with 100 additions and 69 deletions
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2
archival/ar.c
View File

@ -66,7 +66,7 @@ extern int ar_main(int argc, char **argv)
archive_handle = init_handle();
bb_opt_complementally = "!p~tx:t~px:x~pt";
bb_opt_complementally = "?p~tx:t~px:x~pt";
opt = bb_getopt_ulflags(argc, argv, "ptxovcr");
if ((opt == 0) || (optind == argc)) {

2
archival/dpkg_deb.c
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@ -55,7 +55,7 @@ extern int dpkg_deb_main(int argc, char **argv)
control_tar_llist = llist_add_to(control_tar_llist, "control.tar.bz2");
#endif
bb_opt_complementally = "!c~efXx:e~cfXx:f~ceXx:X~cefx:x~cefX";
bb_opt_complementally = "?c~efXx:e~cfXx:f~ceXx:X~cefx:x~cefX";
opt = bb_getopt_ulflags(argc, argv, "cefXx");
if (opt & DPKG_DEB_OPT_CONTENTS) {

2
archival/tar.c
View File

@ -702,7 +702,7 @@ int tar_main(int argc, char **argv)
tar_handle = init_handle();
tar_handle->flags = ARCHIVE_CREATE_LEADING_DIRS | ARCHIVE_PRESERVE_DATE | ARCHIVE_EXTRACT_UNCONDITIONAL;
bb_opt_complementally = "!c~tx:t~cx:x~ct:X*:T*";
bb_opt_complementally = "?c~tx:t~cx:x~ct:X*:T*";
#ifdef CONFIG_FEATURE_TAR_LONG_OPTIONS
bb_applet_long_options = tar_long_options;
#endif

2
coreutils/date.c
View File

@ -151,7 +151,7 @@ int date_main(int argc, char **argv)
#else
# define GETOPT_ISOFMT
#endif
bb_opt_complementally = "!d~ds:s~ds";
bb_opt_complementally = "?d~ds:s~ds";
opt = bb_getopt_ulflags(argc, argv, "Rs:ud:r:" GETOPT_ISOFMT,
&date_str, &date_str, &filename
#ifdef CONFIG_FEATURE_DATE_ISOFMT

21
coreutils/id.c
View File

@ -22,7 +22,7 @@
/* BB_AUDIT SUSv3 _NOT_ compliant -- option -G is not currently supported. */
/* Hacked by Tito Ragusa (C) 2004 to handle usernames of whatever length and to
* be more similar to GNU id.
* be more similar to GNU id.
*/
#include "busybox.h"
@ -41,10 +41,10 @@
#define JUST_GROUP 8
static short printf_full(unsigned int id, const char *arg, const char prefix)
{
{
const char *fmt = "%cid=%u";
short status=EXIT_FAILURE;
if(arg) {
fmt = "%cid=%u(%s)";
status=EXIT_SUCCESS;
@ -61,15 +61,14 @@ extern int id_main(int argc, char **argv)
unsigned long flags;
short status;
bb_opt_complementally = "!u~g:g~u";
/* Don't allow -n -r -nr -ug -rug -nug -rnug */
bb_opt_complementally = "?u~g:g~u:r?ug:n?ug";
flags = bb_getopt_ulflags(argc, argv, "rnug");
/* Don't allow -n -r -nr */
if ((flags <= 3 && flags > 0)
/* Don't allow more than one username */
|| (argc > optind + 1))
if (argc > (optind + 1))
bb_show_usage();
/* This values could be overwritten later */
uid = geteuid();
gid = getegid();
@ -77,13 +76,13 @@ extern int id_main(int argc, char **argv)
uid = getuid();
gid = getgid();
}
if(argv[optind]) {
p=getpwnam(argv[optind]);
/* bb_xgetpwnam is needed because it exits on failure */
uid = bb_xgetpwnam(argv[optind]);
gid = p->pw_gid;
/* in this case PRINT_REAL is the same */
/* in this case PRINT_REAL is the same */
}
if(flags & (JUST_GROUP | JUST_USER)) {
@ -94,7 +93,7 @@ extern int id_main(int argc, char **argv)
} else {
bb_printf("%u\n",(flags & JUST_USER) ? uid : gid);
}
/* exit */
/* exit */
bb_fflush_stdout_and_exit(EXIT_SUCCESS);
}

2
coreutils/install.c
View File

@ -61,7 +61,7 @@ extern int install_main(int argc, char **argv)
int ret = EXIT_SUCCESS, flags, i, isdir;
bb_applet_long_options = install_long_options;
bb_opt_complementally = "!s~d:d~s";
bb_opt_complementally = "?s~d:d~s";
/* -c exists for backwards compatability, its needed */
flags = bb_getopt_ulflags(argc, argv, "cdpsg:m:o:", &gid_str, &mode_str, &uid_str); /* 'a' must be 2nd */

28
debianutils/start_stop_daemon.c
View File

@ -204,18 +204,18 @@ do_stop(void)
static const struct option ssd_long_options[] = {
{ "stop", 0, NULL, 'K' },
{ "start", 0, NULL, 'S' },
{ "stop", 0, NULL, 'K' },
{ "start", 0, NULL, 'S' },
{ "background", 0, NULL, 'b' },
{ "quiet", 0, NULL, 'q' },
{ "quiet", 0, NULL, 'q' },
{ "make-pidfile", 0, NULL, 'm' },
{ "startas", 1, NULL, 'a' },
{ "name", 1, NULL, 'n' },
{ "signal", 1, NULL, 's' },
{ "user", 1, NULL, 'u' },
{ "exec", 1, NULL, 'x' },
{ "name", 1, NULL, 'n' },
{ "signal", 1, NULL, 's' },
{ "user", 1, NULL, 'u' },
{ "exec", 1, NULL, 'x' },
{ "pidfile", 1, NULL, 'p' },
{ 0, 0, 0, 0 }
{ 0, 0, 0, 0 }
};
#define SSD_CTX_STOP 1
@ -233,17 +233,13 @@ start_stop_daemon_main(int argc, char **argv)
bb_applet_long_options = ssd_long_options;
bb_opt_complementally = "!K~S:S~K";
/* Check required one context option was given */
bb_opt_complementally = "?:K?K:S?S:K~S:S~K";
opt = bb_getopt_ulflags(argc, argv, "KSbqma:n:s:u:x:p:",
&startas, &cmdname, &signame, &userspec, &execname, &pidfile);
/* Check required one context option was given */
if ((opt & (SSD_CTX_STOP | SSD_CTX_START)) == 0) {
bb_show_usage();
}
if (opt & SSD_OPT_QUIET)
quiet = 1;
quiet = opt & SSD_OPT_QUIET;
if (signame) {
signal_nr = bb_xgetlarg(signame, 10, 0, NSIG);

108
libbb/getopt_ulflags.c
View File

@ -197,8 +197,9 @@ Special characters:
if (flags & BB_GETOPT_ERROR)
bb_show_usage();
"!" If previous point set BB_GETOPT_ERROR, don`t return and call
previous example internally
"?" A "ask" as the first char in a bb_opt_complementally group give:
if previous point set BB_GETOPT_ERROR, don`t return and
call previous example internally
"*" A star after a char in bb_opt_complementally means that the
option can occur multiple times:
@ -218,16 +219,38 @@ Special characters:
$ grep -e user -e root /etc/passwd
root:x:0:0:root:/root:/bin/bash
user:x:500:500::/home/user:/bin/bash
"?" A "ask" between main and group options causes the second of the two
to be depending required if first is given on the command line.
For example from "id" applet:
// Don't allow -n -r -rn -ug -rug -nug -rnug
bb_opt_complementally = "?u~g:g~u:r?ug:n?ug";
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
"?" A "ask" between equivalent options in bb_opt_complementally means
requires this option always, checked after switch off from
complementally logic
For example from "start-stop-daemon" applet:
// Don't allow -KS -SK, but -S or -K required
bb_opt_complementally = "?:K?K:S?S:K~S:S~K";
flags = bb_getopt_ulflags(argc, argv, "KS...);
*/
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;
@ -245,17 +268,20 @@ unsigned long
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;
const struct option *l_o;
char flg_show_usage_if_error = 0;
char flg_argv_is_opts = 0;
unsigned long trigger;
char **pargv = NULL;
#define SHOW_USAGE_IF_ERROR 1
#define ARGV_IS_OPTS 2
int spec_flgs = 0;
va_start (p, applet_opts);
/* skip GNU extension */
@ -265,16 +291,13 @@ bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
c = 0;
on_off = complementally;
memset(on_off, 0, sizeof(complementally));
for (; *s; s++) {
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 **);
do
@ -284,9 +307,10 @@ bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
on_off++;
c++;
}
on_off->opt = 0;
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;
@ -295,16 +319,8 @@ bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
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;
c++;
}
}
@ -318,12 +334,12 @@ bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
}
if (c)
continue;
if(*s == '!') {
flg_show_usage_if_error = '!';
if(*s == '?') {
spec_flgs |= SHOW_USAGE_IF_ERROR;
continue;
}
if(*s == '-') {
flg_argv_is_opts = '-';
spec_flgs |= ARGV_IS_OPTS;
continue;
}
for (on_off = complementally; on_off->opt; on_off++)
@ -331,18 +347,32 @@ bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
break;
pair = on_off;
for(s++; *s && *s != ':'; s++) {
if (*s == '-' || *s == '~') {
if (*s == '-' || *s == '~' || *s == '?') {
c = *s;
} else if(*s == '*') {
pair->list_flg++;
} else {
unsigned long *pair_switch = &(pair->switch_on);
if(c)
pair_switch = c == '-' ? &(pair->switch_off) : &(pair->incongruously);
unsigned long *pair_switch;
switch(c) {
case '-':
pair_switch = &(pair->switch_off);
break;
case '~':
pair_switch = &(pair->incongruously);
break;
case '?':
pair_switch = &(pair->requires);
break;
default:
pair_switch = &(pair->switch_on);
}
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 if(pair_switch == &(on_off->requires))
requires |= on_off->switch_on;
else
*pair_switch |= on_off->switch_on;
break;
@ -353,15 +383,16 @@ bb_getopt_ulflags (int argc, char **argv, const char *applet_opts, ...)
}
while ((c = getopt_long (argc, argv, applet_opts,
bb_applet_long_options, NULL)) > 0) {
bb_applet_long_options, NULL)) >= 0) {
loop_arg_is_opt:
for (on_off = complementally; on_off->opt != c; on_off++) {
if(!on_off->opt)
/* 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)
if((spec_flgs & SHOW_USAGE_IF_ERROR))
bb_show_usage ();
flags |= BB_GETOPT_ERROR;
}
@ -377,15 +408,13 @@ loop_arg_is_opt:
} 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 & 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) {
c = **pargv;
if(c == '\0') {
@ -396,6 +425,13 @@ loop_arg_is_opt:
}
}
}
/* 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 ();
return flags;
}

2
util-linux/hwclock.c
View File

@ -209,7 +209,7 @@ static const struct option hwclock_long_options[] = {
bb_applet_long_options = hwclock_long_options;
#endif
bb_opt_complementally = "!r~ws:w~rs:s~wr:l~u:u~l";
bb_opt_complementally = "?r~ws:w~rs:s~wr:l~u:u~l";
opt = bb_getopt_ulflags(argc, argv, "lursw");
/* If -u or -l wasn't given check if we are using utc */