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https://github.com/topjohnwu/ndk-busybox.git
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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: */
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/*
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* Utility routines.
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*
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* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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#include "libbb.h"
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int die_sleep;
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#if ENABLE_FEATURE_PREFER_APPLETS || ENABLE_HUSH
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jmp_buf die_jmp;
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#endif
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void xfunc_die(void)
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{
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if (die_sleep) {
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if ((ENABLE_FEATURE_PREFER_APPLETS || ENABLE_HUSH)
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&& die_sleep < 0
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) {
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/* Special case. We arrive here if NOFORK applet
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* calls xfunc, which then decides to die.
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* We don't die, but jump instead back to caller.
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* NOFORK applets still cannot carelessly call xfuncs:
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* p = xmalloc(10);
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* q = xmalloc(10); // BUG! if this dies, we leak p!
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*/
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/* -2222 means "zero" (longjmp can't pass 0)
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* run_nofork_applet() catches -2222. */
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longjmp(die_jmp, xfunc_error_retval ? xfunc_error_retval : -2222);
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}
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sleep(die_sleep);
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}
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exit(xfunc_error_retval);
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}
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void bb_error_msg_and_die(const char *s, ...)
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{
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va_list p;
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va_start(p, s);
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bb_verror_msg(s, p, NULL);
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va_end(p);
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xfunc_die();
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}
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