Contents of /trunk/mkinitrd-magellan/busybox/util-linux/setarch.c
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Revision 816 -
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Fri Apr 24 18:33:46 2009 UTC (15 years, 5 months ago) by niro
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Fri Apr 24 18:33:46 2009 UTC (15 years, 5 months ago) by niro
File MIME type: text/plain
File size: 1080 byte(s)
-updated to busybox-1.13.4
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 | |
14 | int setarch_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
15 | int setarch_main(int argc UNUSED_PARAM, char **argv) |
16 | { |
17 | int pers; |
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 | */ |
24 | if (ENABLE_SETARCH && applet_name[0] == 's' |
25 | && argv[1] && strncpy(argv[1], "linux", 5) |
26 | ) { |
27 | applet_name = argv[1]; |
28 | argv++; |
29 | } |
30 | if (applet_name[5] == '6') /* linux64 */ |
31 | pers = PER_LINUX; |
32 | else if (applet_name[5] == '3') /* linux32 */ |
33 | pers = PER_LINUX32; |
34 | else |
35 | bb_show_usage(); |
36 | |
37 | argv++; |
38 | if (argv[0] == NULL) |
39 | bb_show_usage(); |
40 | |
41 | /* Try to set personality */ |
42 | if (personality(pers) >= 0) { |
43 | /* Try to execute the program */ |
44 | BB_EXECVP(argv[0], argv); |
45 | } |
46 | |
47 | bb_simple_perror_msg_and_die(argv[0]); |
48 | } |