mirror of
https://github.com/sheumann/hush.git
synced 2024-08-27 03:29:05 +00:00
add setarch/linux32/linux64 applet
This commit is contained in:
parent
ea6360e393
commit
0a6b0bfa7a
@ -378,6 +378,10 @@
|
||||
#ifdef CONFIG_FEATURE_INITRD
|
||||
APPLET_NOUSAGE("linuxrc", init_main, _BB_DIR_ROOT, _BB_SUID_NEVER)
|
||||
#endif
|
||||
#ifdef CONFIG_SETARCH
|
||||
APPLET_NOUSAGE("linux32", setarch_main, _BB_DIR_BIN, _BB_SUID_NEVER)
|
||||
APPLET_NOUSAGE("linux64", setarch_main, _BB_DIR_BIN, _BB_SUID_NEVER)
|
||||
#endif
|
||||
#ifdef CONFIG_LN
|
||||
APPLET(ln, ln_main, _BB_DIR_BIN, _BB_SUID_NEVER)
|
||||
#endif
|
||||
@ -586,6 +590,9 @@
|
||||
#ifdef CONFIG_SEQ
|
||||
APPLET(seq, seq_main, _BB_DIR_USR_BIN, _BB_SUID_NEVER)
|
||||
#endif
|
||||
#ifdef CONFIG_SETARCH
|
||||
APPLET(setarch, setarch_main, _BB_DIR_BIN, _BB_SUID_NEVER)
|
||||
#endif
|
||||
#ifdef CONFIG_SETCONSOLE
|
||||
APPLET(setconsole, setconsole_main, _BB_DIR_SBIN, _BB_SUID_NEVER)
|
||||
#endif
|
||||
|
@ -1626,6 +1626,13 @@
|
||||
"\t\treached.\n" \
|
||||
"\t-h, -?\tDisplay this help message\n"
|
||||
|
||||
#define setarch_trivial_usage \
|
||||
"<personality> <program> [args ...]"
|
||||
#define setarch_full_usage \
|
||||
"Personality may be:\n" \
|
||||
"\tlinux32\tSet 32bit uname emulation\n" \
|
||||
"\tlinux64\tSet 64bit uname emulation"
|
||||
|
||||
#define ln_trivial_usage \
|
||||
"[OPTION] TARGET... LINK_NAME|DIRECTORY"
|
||||
#define ln_full_usage \
|
||||
|
@ -354,6 +354,15 @@ config CONFIG_READPROFILE
|
||||
help
|
||||
This allows you to parse /proc/profile for basic profiling.
|
||||
|
||||
config CONFIG_SETARCH
|
||||
bool "setarch"
|
||||
default n
|
||||
help
|
||||
The linux32 utility is used to create a 32bit environment for the
|
||||
specified program (usually a shell). It only makes sense to have
|
||||
this util on a system that supports both 64bit and 32bit userland
|
||||
(like amd64/x86, ppc64/ppc, sparc64/sparc, etc...).
|
||||
|
||||
config CONFIG_SWAPONOFF
|
||||
bool "swaponoff"
|
||||
default n
|
||||
|
@ -33,6 +33,7 @@ UTILLINUX-$(CONFIG_FEATURE_MOUNT_NFS) +=nfsmount.o
|
||||
UTILLINUX-$(CONFIG_PIVOT_ROOT) +=pivot_root.o
|
||||
UTILLINUX-$(CONFIG_RDATE) +=rdate.o
|
||||
UTILLINUX-$(CONFIG_READPROFILE) +=readprofile.o
|
||||
UTILLINUX-$(CONFIG_SETARCH) +=setarch.o
|
||||
UTILLINUX-$(CONFIG_SWAPONOFF) +=swaponoff.o
|
||||
UTILLINUX-$(CONFIG_SWITCH_ROOT) +=switch_root.o
|
||||
UTILLINUX-$(CONFIG_UMOUNT) +=umount.o
|
||||
|
54
util-linux/setarch.c
Normal file
54
util-linux/setarch.c
Normal file
@ -0,0 +1,54 @@
|
||||
/* vi: set sw=4 ts=4: */
|
||||
/*
|
||||
* Linux32/linux64 allows for changing uname emulation.
|
||||
*
|
||||
* Copyright 2002 Andi Kleen, SuSE Labs.
|
||||
* This file is subject to the GNU General Public License v2
|
||||
*
|
||||
* Licensed under GPL v2 or later, see file License for details.
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
#include <string.h>
|
||||
#include <errno.h>
|
||||
#include <stdio.h>
|
||||
#include <sys/personality.h>
|
||||
|
||||
#include "busybox.h"
|
||||
|
||||
int setarch_main(int argc, char **argv)
|
||||
{
|
||||
int pers = -1;
|
||||
|
||||
/* Figure out what personality we are supposed to switch to ...
|
||||
* we can be invoked as either:
|
||||
* argv[0],argv[1] -> "setarch","personality"
|
||||
* argv[0] -> "personality"
|
||||
*/
|
||||
retry:
|
||||
if (!strcmp(argv[0], "linux64"))
|
||||
pers = PER_LINUX;
|
||||
else if (!strcmp(argv[0], "linux32"))
|
||||
pers = PER_LINUX32;
|
||||
else if (pers == -1 && argv[1] != NULL) {
|
||||
pers = PER_LINUX32;
|
||||
++argv;
|
||||
goto retry;
|
||||
}
|
||||
|
||||
/* make user actually gave us something to do */
|
||||
++argv;
|
||||
if (argv[0] == NULL)
|
||||
bb_show_usage();
|
||||
|
||||
/* Try to set personality */
|
||||
if (personality(pers) < 0)
|
||||
goto failure;
|
||||
|
||||
/* Try to execute the program */
|
||||
execvp(argv[0], argv);
|
||||
|
||||
failure:
|
||||
bb_perror_msg_and_die(argv[0]);
|
||||
}
|
Loading…
Reference in New Issue
Block a user