auto import from //depot/cupcake/@135843
diff --git a/libc/private/isc/eventlib.h b/libc/private/isc/eventlib.h
new file mode 100644
index 0000000..9185f67
--- /dev/null
+++ b/libc/private/isc/eventlib.h
@@ -0,0 +1,204 @@
+/* $NetBSD: eventlib.h,v 1.1.1.3 2005/12/21 23:15:22 christos Exp $ */
+
+/*
+ * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
+ * Copyright (c) 1995-1999 by Internet Software Consortium
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+ * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* eventlib.h - exported interfaces for eventlib
+ * vix 09sep95 [initial]
+ *
+ * Id: eventlib.h,v 1.1.2.1.4.2 2005/07/28 07:43:18 marka Exp
+ */
+
+#ifndef _EVENTLIB_H
+#define _EVENTLIB_H
+
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <sys/time.h>
+#include <stdio.h>
+
+#ifndef __P
+# define __EVENTLIB_P_DEFINED
+# ifdef __STDC__
+# define __P(x) x
+# else
+# define __P(x) ()
+# endif
+#endif
+
+/* In the absence of branded types... */
+typedef struct { void *opaque; } evConnID;
+typedef struct { void *opaque; } evFileID;
+typedef struct { void *opaque; } evStreamID;
+typedef struct { void *opaque; } evTimerID;
+typedef struct { void *opaque; } evWaitID;
+typedef struct { void *opaque; } evContext;
+typedef struct { void *opaque; } evEvent;
+
+#define evInitID(id) ((id)->opaque = NULL)
+#define evTestID(id) ((id).opaque != NULL)
+
+typedef void (*evConnFunc)__P((evContext, void *, int, const void *, int,
+ const void *, int));
+typedef void (*evFileFunc)__P((evContext, void *, int, int));
+typedef void (*evStreamFunc)__P((evContext, void *, int, int));
+typedef void (*evTimerFunc)__P((evContext, void *,
+ struct timespec, struct timespec));
+typedef void (*evWaitFunc)__P((evContext, void *, const void *));
+
+typedef struct { unsigned char mask[256/8]; } evByteMask;
+#define EV_BYTEMASK_BYTE(b) ((b) / 8)
+#define EV_BYTEMASK_MASK(b) (1 << ((b) % 8))
+#define EV_BYTEMASK_SET(bm, b) \
+ ((bm).mask[EV_BYTEMASK_BYTE(b)] |= EV_BYTEMASK_MASK(b))
+#define EV_BYTEMASK_CLR(bm, b) \
+ ((bm).mask[EV_BYTEMASK_BYTE(b)] &= ~EV_BYTEMASK_MASK(b))
+#define EV_BYTEMASK_TST(bm, b) \
+ ((bm).mask[EV_BYTEMASK_BYTE(b)] & EV_BYTEMASK_MASK(b))
+
+#define EV_POLL 1
+#define EV_WAIT 2
+#define EV_NULL 4
+
+#define EV_READ 1
+#define EV_WRITE 2
+#define EV_EXCEPT 4
+
+#define EV_WASNONBLOCKING 8 /* Internal library use. */
+
+/* eventlib.c */
+#define evCreate __evCreate
+#define evSetDebug __evSetDebug
+#define evDestroy __evDestroy
+#define evGetNext __evGetNext
+#define evDispatch __evDispatch
+#define evDrop __evDrop
+#define evMainLoop __evMainLoop
+#define evHighestFD __evHighestFD
+#define evGetOption __evGetOption
+#define evSetOption __evSetOption
+
+int evCreate __P((evContext *));
+void evSetDebug __P((evContext, int, FILE *));
+int evDestroy __P((evContext));
+int evGetNext __P((evContext, evEvent *, int));
+int evDispatch __P((evContext, evEvent));
+void evDrop __P((evContext, evEvent));
+int evMainLoop __P((evContext));
+int evHighestFD __P((evContext));
+int evGetOption __P((evContext *, const char *, int *));
+int evSetOption __P((evContext *, const char *, int));
+
+/* ev_connects.c */
+#define evListen __evListen
+#define evConnect __evConnect
+#define evCancelConn __evCancelConn
+#define evHold __evHold
+#define evUnhold __evUnhold
+#define evTryAccept __evTryAccept
+
+int evListen __P((evContext, int, int, evConnFunc, void *, evConnID *));
+int evConnect __P((evContext, int, const void *, int,
+ evConnFunc, void *, evConnID *));
+int evCancelConn __P((evContext, evConnID));
+int evHold __P((evContext, evConnID));
+int evUnhold __P((evContext, evConnID));
+int evTryAccept __P((evContext, evConnID, int *));
+
+/* ev_files.c */
+#define evSelectFD __evSelectFD
+#define evDeselectFD __evDeselectFD
+
+int evSelectFD __P((evContext, int, int, evFileFunc, void *, evFileID *));
+int evDeselectFD __P((evContext, evFileID));
+
+/* ev_streams.c */
+#define evConsIovec __evConsIovec
+#define evWrite __evWrite
+#define evRead __evRead
+#define evTimeRW __evTimeRW
+#define evUntimeRW __evUntimeRW
+#define evCancelRW __evCancelRW
+
+struct iovec evConsIovec __P((void *, size_t));
+int evWrite __P((evContext, int, const struct iovec *, int,
+ evStreamFunc func, void *, evStreamID *));
+int evRead __P((evContext, int, const struct iovec *, int,
+ evStreamFunc func, void *, evStreamID *));
+int evTimeRW __P((evContext, evStreamID, evTimerID timer));
+int evUntimeRW __P((evContext, evStreamID));
+int evCancelRW __P((evContext, evStreamID));
+
+/* ev_timers.c */
+#define evConsTime __evConsTime
+#define evAddTime __evAddTime
+#define evSubTime __evSubTime
+#define evCmpTime __evCmpTime
+#define evTimeSpec __evTimeSpec
+#define evTimeVal __evTimeVal
+
+#define evNowTime __evNowTime
+#define evUTCTime __evUTCTime
+#define evLastEventTime __evLastEventTime
+#define evSetTimer __evSetTimer
+#define evClearTimer __evClearTimer
+#define evConfigTimer __evConfigTimer
+#define evResetTimer __evResetTimer
+#define evSetIdleTimer __evSetIdleTimer
+#define evClearIdleTimer __evClearIdleTimer
+#define evResetIdleTimer __evResetIdleTimer
+#define evTouchIdleTimer __evTouchIdleTimer
+
+struct timespec evConsTime __P((time_t sec, long nsec));
+struct timespec evAddTime __P((struct timespec, struct timespec));
+struct timespec evSubTime __P((struct timespec, struct timespec));
+struct timespec evNowTime __P((void));
+struct timespec evUTCTime __P((void));
+struct timespec evLastEventTime __P((evContext));
+struct timespec evTimeSpec __P((struct timeval));
+struct timeval evTimeVal __P((struct timespec));
+int evCmpTime __P((struct timespec, struct timespec));
+int evSetTimer __P((evContext, evTimerFunc, void *, struct timespec,
+ struct timespec, evTimerID *));
+int evClearTimer __P((evContext, evTimerID));
+int evConfigTimer __P((evContext, evTimerID, const char *param,
+ int value));
+int evResetTimer __P((evContext, evTimerID, evTimerFunc, void *,
+ struct timespec, struct timespec));
+int evSetIdleTimer __P((evContext, evTimerFunc, void *, struct timespec,
+ evTimerID *));
+int evClearIdleTimer __P((evContext, evTimerID));
+int evResetIdleTimer __P((evContext, evTimerID, evTimerFunc, void *,
+ struct timespec));
+int evTouchIdleTimer __P((evContext, evTimerID));
+
+/* ev_waits.c */
+#define evWaitFor __evWaitFor
+#define evDo __evDo
+#define evUnwait __evUnwait
+#define evDefer __evDefer
+
+int evWaitFor __P((evContext, const void *, evWaitFunc, void *, evWaitID *));
+int evDo __P((evContext, const void *));
+int evUnwait __P((evContext, evWaitID));
+int evDefer __P((evContext, evWaitFunc, void *));
+
+#ifdef __EVENTLIB_P_DEFINED
+# undef __P
+#endif
+
+#endif /*_EVENTLIB_H*/