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#include <u.h>
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#include <libc.h>
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#include <authsrv.h>
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#include <bio.h>
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#include "authcmdlib.h"
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void
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usage(void)
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{
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	fprint(2, "usage: netkey\n");
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	exits("usage");
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}
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void
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main(int argc, char *argv[])
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{
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	char buf[32], pass[32], key[DESKEYLEN];
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	char *s;
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	int n;
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	ARGBEGIN{
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	default:
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		usage();
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	}ARGEND
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	if(argc)
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		usage();
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	s = getenv("service");
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	if(s && strcmp(s, "cpu") == 0){
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		fprint(2, "netkey must not be run on the cpu server\n");
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		exits("boofhead");
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	}
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	readln("Password: ", pass, sizeof pass, 1);
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	passtokey(key, pass);
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	for(;;){
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		print("challenge: ");
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		n = read(0, buf, sizeof buf - 1);
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		if(n <= 0)
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			exits(0);
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		buf[n] = '\0';
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		n = strtol(buf, 0, 10);
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		snprint(buf, sizeof buf, "%d", n);
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		netcrypt(key, buf);
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		print("response: %s\n", buf);
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	}
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}