Contents of /trunk/mkinitrd-magellan/busybox/libbb/xfunc_die.c
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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: 1081 byte(s)
-updated to busybox-1.13.4
1 | /* vi: set sw=4 ts=4: */ |
2 | /* |
3 | * Utility routines. |
4 | * |
5 | * Copyright (C) 2008 by Denys Vlasenko <vda.linux@googlemail.com> |
6 | * |
7 | * Licensed under GPLv2, see file LICENSE in this tarball for details. |
8 | */ |
9 | |
10 | /* Keeping it separate allows to NOT suck in stdio for VERY small applets. |
11 | * Try building busybox with only "true" enabled... */ |
12 | |
13 | #include "libbb.h" |
14 | |
15 | int die_sleep; |
16 | #if ENABLE_FEATURE_PREFER_APPLETS || ENABLE_HUSH |
17 | jmp_buf die_jmp; |
18 | #endif |
19 | |
20 | void FAST_FUNC xfunc_die(void) |
21 | { |
22 | if (die_sleep) { |
23 | if ((ENABLE_FEATURE_PREFER_APPLETS || ENABLE_HUSH) |
24 | && die_sleep < 0 |
25 | ) { |
26 | /* Special case. We arrive here if NOFORK applet |
27 | * calls xfunc, which then decides to die. |
28 | * We don't die, but jump instead back to caller. |
29 | * NOFORK applets still cannot carelessly call xfuncs: |
30 | * p = xmalloc(10); |
31 | * q = xmalloc(10); // BUG! if this dies, we leak p! |
32 | */ |
33 | /* -2222 means "zero" (longjmp can't pass 0) |
34 | * run_nofork_applet() catches -2222. */ |
35 | longjmp(die_jmp, xfunc_error_retval ? xfunc_error_retval : -2222); |
36 | } |
37 | sleep(die_sleep); |
38 | } |
39 | exit(xfunc_error_retval); |
40 | } |