mirror of
https://github.com/sheumann/hush.git
synced 2024-12-28 22:30:05 +00:00
54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Linux32/linux64 allows for changing uname emulation.
|
|
*
|
|
* Copyright 2002 Andi Kleen, SuSE Labs.
|
|
*
|
|
* 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 ATTRIBUTE_UNUSED argc, char **argv);
|
|
int setarch_main(int ATTRIBUTE_UNUSED 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 (argv[0][5] == '6') /* linux64 */
|
|
pers = PER_LINUX;
|
|
else if (argv[0][5] == '3') /* 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) {
|
|
|
|
/* Try to execute the program */
|
|
execvp(argv[0], argv);
|
|
}
|
|
|
|
bb_perror_msg_and_die("%s", argv[0]);
|
|
}
|