49 lines
1.1 KiB
C
49 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 <sys/personality.h>
|
|
|
|
#include "libbb.h"
|
|
|
|
int setarch_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
|
|
int setarch_main(int argc UNUSED_PARAM, char **argv)
|
|
{
|
|
int pers;
|
|
|
|
/* 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"
|
|
*/
|
|
if (ENABLE_SETARCH && applet_name[0] == 's'
|
|
&& argv[1] && strncpy(argv[1], "linux", 5)
|
|
) {
|
|
applet_name = argv[1];
|
|
argv++;
|
|
}
|
|
if (applet_name[5] == '6') /* linux64 */
|
|
pers = PER_LINUX;
|
|
else if (applet_name[5] == '3') /* linux32 */
|
|
pers = PER_LINUX32;
|
|
else
|
|
bb_show_usage();
|
|
|
|
argv++;
|
|
if (argv[0] == NULL)
|
|
bb_show_usage();
|
|
|
|
/* Try to set personality */
|
|
if (personality(pers) >= 0) {
|
|
/* Try to execute the program */
|
|
BB_EXECVP(argv[0], argv);
|
|
}
|
|
|
|
bb_simple_perror_msg_and_die(argv[0]);
|
|
}
|