44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/*
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* This file is part of the UCB release of Plan 9. It is subject to the license
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* terms in the LICENSE file found in the top-level directory of this
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* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
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* part of the UCB release of Plan 9, including this file, may be copied,
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* modified, propagated, or distributed except according to the terms contained
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* in the LICENSE file.
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*/
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/* Portions of this file are Copyright (C) 2015-2018 Giacomo Tesio <giacomo@tesio.it>
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* See /doc/license/gpl-2.0.txt for details about the licensing.
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*/
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/* Portions of this file are Copyright (C) 9front's team.
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* See /doc/license/9front-mit for details about the licensing.
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* See http://git.9front.org/plan9front/plan9front/HEAD/info.html for a list of authors.
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*/
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#include <u.h>
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#include <lib9.h>
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#include <bio.h>
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#include <authsrv.h>
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#include "authcmdlib.h"
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static char *pmsg = "Warning! %s can't protect itself from debugging: %r\n";
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static char *smsg = "Warning! %s can't turn off swapping: %r\n";
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/* don't allow other processes to debug us and steal keys */
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void
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private(void)
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{
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int fd;
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char buf[64];
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snprint(buf, sizeof(buf), "#p/%d/ctl", getpid());
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fd = sys_open(buf, OWRITE);
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if(fd < 0){
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fprint(2, pmsg, argv0);
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return;
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}
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if(fprint(fd, "private") < 0)
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fprint(2, pmsg, argv0);
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if(fprint(fd, "noswap") < 0)
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fprint(2, smsg, argv0);
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sys_close(fd);
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}
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