2016-11-25 17:18:40 +01:00
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#include <u.h>
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2017-04-19 23:33:14 +02:00
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#include <lib9.h>
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2016-11-25 17:18:40 +01:00
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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 = 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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close(fd);
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}
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