*
* Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-
//config:config NSENTER
//config: bool "nsenter (8.6 kb)"
//config: default y
//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))
//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"
//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
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,
/*
* Upstream nsenter doesn't support the short option for --preserve-credentials
*/
-static const char opt_str[] ALIGN1 = "U::i::u::n::p::m::""t+S+G+r::w::F";
+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"
"uts\0" Optional_argument "u"
- "network\0" Optional_argument "n"
+ "net\0" Optional_argument "n"
"pid\0" Optional_argument "p"
"mount\0" Optional_argument "m"
"target\0" Required_argument "t"
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,