source: MondoRescue/branches/2.2.5/mindi-busybox/util-linux/setarch.c @ 1765

Last change on this file since 1765 was 1765, checked in by Bruno Cornec, 13 years ago

Update to busybox 1.7.2

File size: 1.0 KB
Line 
1/* vi: set sw=4 ts=4: */
2/*
3 * Linux32/linux64 allows for changing uname emulation.
4 *
5 * Copyright 2002 Andi Kleen, SuSE Labs.
6 *
7 * Licensed under GPL v2 or later, see file License for details.
8*/
9
10#include <sys/personality.h>
11
12#include "libbb.h"
13
14int setarch_main(int ATTRIBUTE_UNUSED argc, char **argv);
15int setarch_main(int ATTRIBUTE_UNUSED argc, char **argv)
16{
17    int pers = -1;
18
19    /* Figure out what personality we are supposed to switch to ...
20     * we can be invoked as either:
21     * argv[0],argv[1] -> "setarch","personality"
22     * argv[0]         -> "personality"
23     */
24retry:
25    if (argv[0][5] == '6') /* linux64 */
26        pers = PER_LINUX;
27    else if (argv[0][5] == '3') /* linux32 */
28        pers = PER_LINUX32;
29    else if (pers == -1 && argv[1] != NULL) {
30        pers = PER_LINUX32;
31        ++argv;
32        goto retry;
33    }
34
35    /* make user actually gave us something to do */
36    ++argv;
37    if (argv[0] == NULL)
38        bb_show_usage();
39
40    /* Try to set personality */
41    if (personality(pers) >= 0) {
42
43        /* Try to execute the program */
44        BB_EXECVP(argv[0], argv);
45    }
46
47    bb_perror_msg_and_die("%s", argv[0]);
48}
Note: See TracBrowser for help on using the repository browser.