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#include <u.h>
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#include <libc.h>
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#include <bio.h>
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#include "authcmdlib.h"
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void
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error(char *fmt, ...)
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{
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	char buf[8192], *s;
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	va_list arg;
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	s = buf;
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	s += snprint(s, sizeof buf, "%s: ", argv0);
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	va_start(arg, fmt);
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	s = vseprint(s, buf + sizeof(buf), fmt, arg);
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	va_end(arg);
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	*s++ = '\n';
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	write(2, buf, s - buf);
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	exits(buf);
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}