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authorDenys Vlasenko2017-08-08 16:38:18 +0200
committerDenys Vlasenko2017-08-08 17:09:40 +0200
commit036585a911a5fe6c2cd77b808dd9150500f37272 (patch)
treeaa7c65b4d09c74642f622a1ef5da982d6ed4940a /util-linux
parent00677b5e35dd97f415f0b0bef25b55865f55ab33 (diff)
downloadbusybox-036585a911a5fe6c2cd77b808dd9150500f37272.zip
busybox-036585a911a5fe6c2cd77b808dd9150500f37272.tar.gz
getopt32: remove applet_long_options
FEATURE_GETOPT_LONG made dependent on LONG_OPTS. The folloving options are removed, now LONG_OPTS enables long options for affected applets: FEATURE_ENV_LONG_OPTIONS FEATURE_EXPAND_LONG_OPTIONS FEATURE_UNEXPAND_LONG_OPTIONS FEATURE_MKDIR_LONG_OPTIONS FEATURE_MV_LONG_OPTIONS FEATURE_RMDIR_LONG_OPTIONS FEATURE_ADDGROUP_LONG_OPTIONS FEATURE_ADDUSER_LONG_OPTIONS FEATURE_HWCLOCK_LONG_OPTIONS FEATURE_NSENTER_LONG_OPTS FEATURE_CHCON_LONG_OPTIONS FEATURE_RUNCON_LONG_OPTIONS They either had a small number of long options, or their long options are essential. Example: upstream addgroup and adduser have ONLY longopts, we should probably go further and get rid of non-standard short options. To this end, make addgroup and adduser "select LONG_OPTS". We had this breakage caused by us even in our own package! #if ENABLE_LONG_OPTS || !ENABLE_ADDGROUP /* We try to use --gid, not -g, because "standard" addgroup * has no short option -g, it has only long --gid. */ argv[1] = (char*)"--gid"; #else /* Breaks if system in fact does NOT use busybox addgroup */ argv[1] = (char*)"-g"; #endif xargs: its lone longopt no longer depends on DESKTOP, only on LONG_OPTS. hwclock TODO: get rid of incompatible -t, -l aliases to --systz, --localtime Shorten help texts by omitting long option when short opt alternative exists. Reduction of size comes from the fact that store of an immediate (an address of longopts) to a fixed address (global variable) is a longer insn than pushing that immediate or passing it in a register. This effect is CPU-agnostic. function old new delta getopt32 1350 22 -1328 vgetopt32 - 1318 +1318 getopt32long - 24 +24 tftpd_main 562 567 +5 scan_recursive 376 380 +4 collect_cpu 545 546 +1 date_main 1096 1095 -1 hostname_main 262 259 -3 uname_main 259 255 -4 setpriv_main 362 358 -4 rmdir_main 191 187 -4 mv_main 562 558 -4 ipcalc_main 548 544 -4 ifenslave_main 641 637 -4 gzip_main 192 188 -4 gunzip_main 77 73 -4 fsfreeze_main 81 77 -4 flock_main 318 314 -4 deluser_main 337 333 -4 cp_main 374 370 -4 chown_main 175 171 -4 applet_long_options 4 - -4 xargs_main 894 889 -5 wget_main 2540 2535 -5 udhcpc_main 2767 2762 -5 touch_main 436 431 -5 tar_main 1014 1009 -5 start_stop_daemon_main 1033 1028 -5 sed_main 682 677 -5 script_main 1082 1077 -5 run_parts_main 330 325 -5 rtcwake_main 459 454 -5 od_main 2169 2164 -5 nl_main 201 196 -5 modprobe_main 773 768 -5 mkdir_main 160 155 -5 ls_main 568 563 -5 install_main 773 768 -5 hwclock_main 411 406 -5 getopt_main 622 617 -5 fstrim_main 256 251 -5 env_main 198 193 -5 dumpleases_main 635 630 -5 dpkg_main 3991 3986 -5 diff_main 1355 1350 -5 cryptpw_main 233 228 -5 cpio_main 593 588 -5 conspy_main 1135 1130 -5 chpasswd_main 313 308 -5 adduser_main 887 882 -5 addgroup_main 416 411 -5 ftpgetput_main 351 345 -6 get_terminal_width_height 242 234 -8 expand_main 690 680 -10 static.expand_longopts 18 - -18 static.unexpand_longopts 27 - -27 mkdir_longopts 28 - -28 env_longopts 30 - -30 static.ifenslave_longopts 34 - -34 mv_longopts 46 - -46 static.rmdir_longopts 48 - -48 packed_usage 31739 31687 -52 ------------------------------------------------------------------------------ (add/remove: 2/8 grow/shrink: 3/49 up/down: 1352/-1840) Total: -488 bytes text data bss dec hex filename 915681 485 6880 923046 e15a6 busybox_old 915428 485 6876 922789 e14a5 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'util-linux')
-rw-r--r--util-linux/flock.c3
-rw-r--r--util-linux/fsfreeze.c9
-rw-r--r--util-linux/fstrim.c3
-rw-r--r--util-linux/getopt.c22
-rw-r--r--util-linux/hwclock.c28
-rw-r--r--util-linux/nsenter.c35
-rw-r--r--util-linux/rtcwake.c4
-rw-r--r--util-linux/script.c4
-rw-r--r--util-linux/setpriv.c9
-rw-r--r--util-linux/unshare.c3
10 files changed, 39 insertions, 81 deletions
diff --git a/util-linux/flock.c b/util-linux/flock.c
index b55e07a..0c91585 100644
--- a/util-linux/flock.c
+++ b/util-linux/flock.c
@@ -44,11 +44,10 @@ int flock_main(int argc UNUSED_PARAM, char **argv)
"unlock\0" No_argument "u"
"nonblock\0" No_argument "n"
;
- applet_long_options = flock_longopts;
#endif
opt_complementary = "-1";
- opt = getopt32(argv, "+sxnu");
+ opt = getopt32long(argv, "+sxnu", flock_longopts);
argv += optind;
if (argv[1]) {
diff --git a/util-linux/fsfreeze.c b/util-linux/fsfreeze.c
index c1f3156..af715da 100644
--- a/util-linux/fsfreeze.c
+++ b/util-linux/fsfreeze.c
@@ -36,15 +36,14 @@ int fsfreeze_main(int argc UNUSED_PARAM, char **argv)
unsigned opts;
int fd;
- applet_long_options =
- "freeze\0" No_argument "\xff"
- "unfreeze\0" No_argument "\xfe"
- ;
/* exactly one non-option arg: the mountpoint */
/* one of opts is required */
/* opts are mutually exclusive */
opt_complementary = "=1:""\xff:\xfe:""\xff--\xfe:\xfe--\xff";
- opts = getopt32(argv, "");
+ opts = getopt32long(argv, "",
+ "freeze\0" No_argument "\xff"
+ "unfreeze\0" No_argument "\xfe"
+ );
fd = xopen(argv[optind], O_RDONLY);
/* Works with NULL arg on linux-4.8.0 */
diff --git a/util-linux/fstrim.c b/util-linux/fstrim.c
index 1fbf0c8..8f0a053 100644
--- a/util-linux/fstrim.c
+++ b/util-linux/fstrim.c
@@ -69,11 +69,10 @@ int fstrim_main(int argc UNUSED_PARAM, char **argv)
"minimum\0" Required_argument "m"
"verbose\0" No_argument "v"
;
- applet_long_options = fstrim_longopts;
#endif
opt_complementary = "=1"; /* exactly one non-option arg: the mountpoint */
- opts = getopt32(argv, "o:l:m:v", &arg_o, &arg_l, &arg_m);
+ opts = getopt32long(argv, "o:l:m:v", fstrim_longopts, &arg_o, &arg_l, &arg_m);
memset(&range, 0, sizeof(range));
range.len = ULLONG_MAX;
diff --git a/util-linux/getopt.c b/util-linux/getopt.c
index 5fe0da7..a151b7e 100644
--- a/util-linux/getopt.c
+++ b/util-linux/getopt.c
@@ -42,8 +42,8 @@
//config:
//config:config FEATURE_GETOPT_LONG
//config: bool "Support -l LONGOPTs"
-//config: default y if LONG_OPTS
-//config: depends on GETOPT
+//config: default y
+//config: depends on GETOPT && LONG_OPTS
//config: help
//config: Enable support for long options (option -l).
@@ -54,20 +54,6 @@
//usage:#define getopt_trivial_usage
//usage: "[OPTIONS] [--] OPTSTRING PARAMS"
//usage:#define getopt_full_usage "\n\n"
-//usage: IF_LONG_OPTS(
-//usage: IF_FEATURE_GETOPT_LONG(
-//usage: " -a,--alternative Allow long options starting with single -\n"
-//usage: " -l,--longoptions LOPT[,...] Long options to recognize\n"
-//usage: )
-//usage: " -n,--name PROGNAME The name under which errors are reported"
-//usage: "\n -o,--options OPTSTRING Short options to recognize"
-//usage: "\n -q,--quiet No error messages on unrecognized options"
-//usage: "\n -Q,--quiet-output No normal output"
-//usage: "\n -s,--shell SHELL Set shell quoting conventions"
-//usage: "\n -T,--test Version test (exits with 4)"
-//usage: "\n -u,--unquoted Don't quote output"
-//usage: )
-//usage: IF_NOT_LONG_OPTS(
//usage: IF_FEATURE_GETOPT_LONG(
//usage: " -a Allow long options starting with single -\n"
//usage: " -l LOPT[,...] Long options to recognize\n"
@@ -79,7 +65,6 @@
//usage: "\n -s SHELL Set shell quoting conventions"
//usage: "\n -T Version test (exits with 4)"
//usage: "\n -u Don't quote output"
-//usage: )
//usage: IF_FEATURE_GETOPT_LONG( /* example uses -l, needs FEATURE_GETOPT_LONG */
//usage: "\n"
//usage: "\nExample:"
@@ -411,8 +396,7 @@ int getopt_main(int argc, char **argv)
#if !ENABLE_FEATURE_GETOPT_LONG
opt = getopt32(argv, "+o:n:qQs:Tu", &optstr, &name, &s_arg);
#else
- applet_long_options = getopt_longopts;
- opt = getopt32(argv, "+o:n:qQs:Tual:*",
+ opt = getopt32long(argv, "+o:n:qQs:Tual:*", getopt_longopts,
&optstr, &name, &s_arg, &l_arg);
/* Effectuate the read options for the applet itself */
while (l_arg) {
diff --git a/util-linux/hwclock.c b/util-linux/hwclock.c
index 5df56de..50f83d8 100644
--- a/util-linux/hwclock.c
+++ b/util-linux/hwclock.c
@@ -16,11 +16,6 @@
//config: shutdown in the hardware clock, so the hardware will keep the
//config: correct time when Linux is _not_ running.
//config:
-//config:config FEATURE_HWCLOCK_LONG_OPTIONS
-//config: bool "Support long options (--hctosys,...)"
-//config: default y
-//config: depends on HWCLOCK && LONG_OPTS
-//config:
//config:config FEATURE_HWCLOCK_ADJTIME_FHS
//config: bool "Use FHS /var/lib/hwclock/adjtime"
//config: default n # util-linux-ng in Fedora 13 still uses /etc/adjtime
@@ -293,12 +288,12 @@ static void set_system_clock_timezone(int utc)
}
//usage:#define hwclock_trivial_usage
-//usage: IF_FEATURE_HWCLOCK_LONG_OPTIONS(
-//usage: "[-r|--show] [-s|--hctosys] [-w|--systohc] [-t|--systz]"
-//usage: " [-l|--localtime] [-u|--utc]"
+//usage: IF_LONG_OPTS(
+//usage: "[-r|--show] [-s|--hctosys] [-w|--systohc] [--systz]"
+//usage: " [--localtime] [-u|--utc]"
//usage: " [-f|--rtc FILE]"
//usage: )
-//usage: IF_NOT_FEATURE_HWCLOCK_LONG_OPTIONS(
+//usage: IF_NOT_LONG_OPTS(
//usage: "[-r] [-s] [-w] [-t] [-l] [-u] [-f FILE]"
//usage: )
//usage:#define hwclock_full_usage "\n\n"
@@ -306,12 +301,18 @@ static void set_system_clock_timezone(int utc)
//usage: "\n -r Show hardware clock time"
//usage: "\n -s Set system time from hardware clock"
//usage: "\n -w Set hardware clock from system time"
-//usage: "\n -t Set in-kernel timezone, correct system time"
+//usage: IF_LONG_OPTS(
+//usage: "\n --systz Set in-kernel timezone, correct system time"
+//usage: )
//usage: "\n if hardware clock is in local time"
//usage: "\n -u Assume hardware clock is kept in UTC"
-//usage: "\n -l Assume hardware clock is kept in local time"
+//usage: IF_LONG_OPTS(
+//usage: "\n --localtime Assume hardware clock is kept in local time"
+//usage: )
//usage: "\n -f FILE Use specified device (e.g. /dev/rtc2)"
+//TODO: get rid of incompatible -t and -l aliases to --systz and --localtime
+
#define HWCLOCK_OPT_LOCALTIME 0x01
#define HWCLOCK_OPT_UTC 0x02
#define HWCLOCK_OPT_SHOW 0x04
@@ -327,7 +328,7 @@ int hwclock_main(int argc UNUSED_PARAM, char **argv)
unsigned opt;
int utc;
-#if ENABLE_FEATURE_HWCLOCK_LONG_OPTIONS
+#if ENABLE_LONG_OPTS
static const char hwclock_longopts[] ALIGN1 =
"localtime\0" No_argument "l" /* short opt is non-standard */
"utc\0" No_argument "u"
@@ -337,14 +338,13 @@ int hwclock_main(int argc UNUSED_PARAM, char **argv)
"systz\0" No_argument "t" /* short opt is non-standard */
"rtc\0" Required_argument "f"
;
- applet_long_options = hwclock_longopts;
#endif
/* Initialize "timezone" (libc global variable) */
tzset();
opt_complementary = "r--wst:w--rst:s--wrt:t--rsw:l--u:u--l";
- opt = getopt32(argv, "lurswtf:", &rtcname);
+ opt = getopt32long(argv, "lurswtf:", hwclock_longopts, &rtcname);
/* If -u or -l wasn't given check if we are using utc */
if (opt & (HWCLOCK_OPT_UTC | HWCLOCK_OPT_LOCALTIME))
diff --git a/util-linux/nsenter.c b/util-linux/nsenter.c
index 12c86b0..d91b0b5 100644
--- a/util-linux/nsenter.c
+++ b/util-linux/nsenter.c
@@ -13,14 +13,6 @@
//config: select PLATFORM_LINUX
//config: help
//config: Run program with namespaces of other processes.
-//config:
-//config:config FEATURE_NSENTER_LONG_OPTS
-//config: bool "Enable long options"
-//config: default y
-//config: depends on NSENTER && LONG_OPTS
-//config: help
-//config: Support long options for the nsenter applet. This makes
-//config: the busybox implementation more compatible with upstream.
//applet:IF_NSENTER(APPLET(nsenter, BB_DIR_USR_BIN, BB_SUID_DROP))
@@ -28,22 +20,6 @@
//usage:#define nsenter_trivial_usage
//usage: "[OPTIONS] [PROG [ARGS]]"
-//usage:#if ENABLE_FEATURE_NSENTER_LONG_OPTS
-//usage:#define nsenter_full_usage "\n"
-//usage: "\n -t,--target PID Target process to get namespaces from"
-//usage: "\n -m,--mount[=FILE] Enter mount namespace"
-//usage: "\n -u,--uts[=FILE] Enter UTS namespace (hostname etc)"
-//usage: "\n -i,--ipc[=FILE] Enter System V IPC namespace"
-//usage: "\n -n,--net[=FILE] Enter network namespace"
-//usage: "\n -p,--pid[=FILE] Enter pid namespace"
-//usage: "\n -U,--user[=FILE] Enter user namespace"
-//usage: "\n -S,--setuid UID Set uid in entered namespace"
-//usage: "\n -G,--setgid GID Set gid in entered namespace"
-//usage: "\n --preserve-credentials Don't touch uids or gids"
-//usage: "\n -r,--root[=DIR] Set root directory"
-//usage: "\n -w,--wd[=DIR] Set working directory"
-//usage: "\n -F,--no-fork Don't fork before exec'ing PROG"
-//usage:#else
//usage:#define nsenter_full_usage "\n"
//usage: "\n -t PID Target process to get namespaces from"
//usage: "\n -m[FILE] Enter mount namespace"
@@ -54,10 +30,12 @@
//usage: "\n -U[FILE] Enter user namespace"
//usage: "\n -S UID Set uid in entered namespace"
//usage: "\n -G GID Set gid in entered namespace"
+//usage: IF_LONG_OPTS(
+//usage: "\n --preserve-credentials Don't touch uids or gids"
+//usage: )
//usage: "\n -r[DIR] Set root directory"
//usage: "\n -w[DIR] Set working directory"
//usage: "\n -F Don't fork before exec'ing PROG"
-//usage:#endif
#include <sched.h>
#ifndef CLONE_NEWUTS
@@ -101,7 +79,7 @@ enum {
OPT_root = 1 << 9,
OPT_wd = 1 << 10,
OPT_nofork = 1 << 11,
- OPT_prescred = (1 << 12) * ENABLE_FEATURE_NSENTER_LONG_OPTS,
+ OPT_prescred = (1 << 12) * ENABLE_LONG_OPTS,
};
enum {
NS_USR_POS = 0,
@@ -130,7 +108,7 @@ static const struct namespace_descr ns_list[] = {
*/
static const char opt_str[] ALIGN1 = "U::i::u::n::p::m::""t+S+G+r::w::F";
-#if ENABLE_FEATURE_NSENTER_LONG_OPTS
+#if ENABLE_LONG_OPTS
static const char nsenter_longopts[] ALIGN1 =
"user\0" Optional_argument "U"
"ipc\0" Optional_argument "i"
@@ -190,8 +168,7 @@ int nsenter_main(int argc UNUSED_PARAM, char **argv)
memset(ns_ctx_list, 0, sizeof(ns_ctx_list));
- IF_FEATURE_NSENTER_LONG_OPTS(applet_long_options = nsenter_longopts);
- opts = getopt32(argv, opt_str,
+ opts = getopt32long(argv, opt_str, nsenter_longopts,
&ns_ctx_list[NS_USR_POS].path,
&ns_ctx_list[NS_IPC_POS].path,
&ns_ctx_list[NS_UTS_POS].path,
diff --git a/util-linux/rtcwake.c b/util-linux/rtcwake.c
index 4c47c53..2a3d61f 100644
--- a/util-linux/rtcwake.c
+++ b/util-linux/rtcwake.c
@@ -154,11 +154,11 @@ int rtcwake_main(int argc UNUSED_PARAM, char **argv)
"seconds\0" Required_argument "s"
"time\0" Required_argument "t"
;
- applet_long_options = rtcwake_longopts;
#endif
/* Must have -s or -t, exclusive */
opt_complementary = "s:t:s--t:t--s";
- opt = getopt32(argv, "alud:m:s:t:", &rtcname, &suspend, &opt_seconds, &opt_time);
+ opt = getopt32long(argv, "alud:m:s:t:", rtcwake_longopts,
+ &rtcname, &suspend, &opt_seconds, &opt_time);
/* this is the default
if (opt & RTCWAKE_OPT_AUTO)
diff --git a/util-linux/script.c b/util-linux/script.c
index 4cb9842..8174c65 100644
--- a/util-linux/script.c
+++ b/util-linux/script.c
@@ -78,12 +78,10 @@ int script_main(int argc UNUSED_PARAM, char **argv)
"quiet\0" No_argument "q"
"timing\0" Optional_argument "t"
;
-
- applet_long_options = script_longopts;
#endif
opt_complementary = "?1"; /* max one arg */
- opt = getopt32(argv, "ac:fqt::", &shell_arg, &str_t);
+ opt = getopt32long(argv, "ac:fqt::", script_longopts, &shell_arg, &str_t);
//argc -= optind;
argv += optind;
if (argv[0]) {
diff --git a/util-linux/setpriv.c b/util-linux/setpriv.c
index 0f85428..5c532d6 100644
--- a/util-linux/setpriv.c
+++ b/util-linux/setpriv.c
@@ -421,9 +421,12 @@ int setpriv_main(int argc UNUSED_PARAM, char **argv)
int opts;
IF_FEATURE_SETPRIV_CAPABILITIES(char *inh_caps, *ambient_caps;)
- applet_long_options = setpriv_longopts;
- opts = getopt32(argv, "+"IF_FEATURE_SETPRIV_DUMP("d")
- IF_FEATURE_SETPRIV_CAPABILITIES("\xfe:\xfd:", &inh_caps, &ambient_caps));
+ opts = getopt32long(argv,
+ "+"IF_FEATURE_SETPRIV_DUMP("d")
+ IF_FEATURE_SETPRIV_CAPABILITIES("\xfe:\xfd:"),
+ setpriv_longopts
+ IF_FEATURE_SETPRIV_CAPABILITIES(, &inh_caps, &ambient_caps)
+ );
argv += optind;
#if ENABLE_FEATURE_SETPRIV_DUMP
diff --git a/util-linux/unshare.c b/util-linux/unshare.c
index e7b95c7..df37747 100644
--- a/util-linux/unshare.c
+++ b/util-linux/unshare.c
@@ -220,8 +220,7 @@ int unshare_main(int argc UNUSED_PARAM, char **argv)
":ru" /* --map-root-user or -r implies -u */
":\xfd""m" /* --mount-proc implies -m */
;
- applet_long_options = unshare_longopts;
- opts = getopt32(argv, opt_str,
+ opts = getopt32long(argv, opt_str, unshare_longopts,
&proc_mnt_target, &prop_str, &setgrp_str,
&ns_ctx_list[NS_MNT_POS].path,
&ns_ctx_list[NS_UTS_POS].path,