mirror of
https://github.com/topjohnwu/ndk-busybox.git
synced 2024-12-01 07:30:24 +00:00
b055001b6a
was eating all remaining input, potentially megabytes. nofork: save/restore die_jmp too nofork: use -2222 instead of -111 as "special" return valur for zero (-111 is used by some applets. -2222 won't fit in exitcode and thus safer)
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* Utility routines.
|
|
*
|
|
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
|
|
*
|
|
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
|
|
*/
|
|
|
|
#include "libbb.h"
|
|
|
|
int die_sleep;
|
|
#if ENABLE_FEATURE_PREFER_APPLETS || ENABLE_HUSH
|
|
jmp_buf die_jmp;
|
|
#endif
|
|
|
|
void xfunc_die(void)
|
|
{
|
|
if (die_sleep) {
|
|
if ((ENABLE_FEATURE_PREFER_APPLETS || ENABLE_HUSH)
|
|
&& die_sleep < 0
|
|
) {
|
|
/* Special case. We arrive here if NOFORK applet
|
|
* calls xfunc, which then decides to die.
|
|
* We don't die, but jump instead back to caller.
|
|
* NOFORK applets still cannot carelessly call xfuncs:
|
|
* p = xmalloc(10);
|
|
* q = xmalloc(10); // BUG! if this dies, we leak p!
|
|
*/
|
|
/* -2222 means "zero" (longjmp can't pass 0)
|
|
* run_nofork_applet() catches -2222. */
|
|
longjmp(die_jmp, xfunc_error_retval ? xfunc_error_retval : -2222);
|
|
}
|
|
sleep(die_sleep);
|
|
}
|
|
exit(xfunc_error_retval);
|
|
}
|
|
|
|
void bb_error_msg_and_die(const char *s, ...)
|
|
{
|
|
va_list p;
|
|
|
|
va_start(p, s);
|
|
bb_verror_msg(s, p, NULL);
|
|
va_end(p);
|
|
xfunc_die();
|
|
}
|