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#include <u.h>
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#include <libc.h>
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#include <mp.h>
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#include <libsec.h>
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void
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usage(void)
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{
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	fprint(2, "usage: auth/dsagen [-t 'attr=value attr=value ...']\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 *s, *tag;
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	DSApriv *key;
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	tag = nil;
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	fmtinstall('B', mpfmt);
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	ARGBEGIN{
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	case 't':
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		tag = EARGF(usage());
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		break;
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	default:
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		usage();
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	}ARGEND
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	if(argc != 0)
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		usage();
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	key = dsagen(nil);
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	s = smprint("key proto=dsa %s%sp=%B q=%B alpha=%B key=%B !secret=%B\n",
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		tag ? tag : "", tag ? " " : "",
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		key->pub.p, key->pub.q, key->pub.alpha, key->pub.key,
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		key->secret);
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	if(s == nil)
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		sysfatal("smprint: %r");
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	if(write(1, s, strlen(s)) != strlen(s))
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		sysfatal("write: %r");
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	exits(nil);
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}