auto import from //depot/cupcake/@135843
diff --git a/print-ipcomp.c b/print-ipcomp.c
new file mode 100644
index 0000000..099e5ad
--- /dev/null
+++ b/print-ipcomp.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that: (1) source code distributions
+ * retain the above copyright notice and this paragraph in its entirety, (2)
+ * distributions including binary code include the above copyright notice and
+ * this paragraph in its entirety in the documentation or other materials
+ * provided with the distribution, and (3) all advertising materials mentioning
+ * features or use of this software display the following acknowledgement:
+ * ``This product includes software developed by the University of California,
+ * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
+ * the University nor the names of its contributors may be used to endorse
+ * or promote products derived from this software without specific prior
+ * written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef lint
+static const char rcsid[] _U_ =
+ "@(#) $Header: /tcpdump/master/tcpdump/print-ipcomp.c,v 1.20 2003/11/19 00:36:08 guy Exp $";
+#endif
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <string.h>
+#include <tcpdump-stdinc.h>
+
+#include <stdio.h>
+
+struct ipcomp {
+ u_int8_t comp_nxt; /* Next Header */
+ u_int8_t comp_flags; /* Length of data, in 32bit */
+ u_int16_t comp_cpi; /* Compression parameter index */
+};
+
+#if defined(HAVE_LIBZ) && defined(HAVE_ZLIB_H)
+#include <zlib.h>
+#endif
+
+#include "interface.h"
+#include "addrtoname.h"
+#include "extract.h"
+
+int
+ipcomp_print(register const u_char *bp, int *nhdr _U_)
+{
+ register const struct ipcomp *ipcomp;
+ register const u_char *ep;
+ u_int16_t cpi;
+#if defined(HAVE_LIBZ) && defined(HAVE_ZLIB_H)
+ int advance;
+#endif
+
+ ipcomp = (struct ipcomp *)bp;
+ cpi = EXTRACT_16BITS(&ipcomp->comp_cpi);
+
+ /* 'ep' points to the end of available data. */
+ ep = snapend;
+
+ if ((u_char *)(ipcomp + 1) >= ep - sizeof(struct ipcomp)) {
+ fputs("[|IPCOMP]", stdout);
+ goto fail;
+ }
+ printf("IPComp(cpi=0x%04x)", cpi);
+
+#if defined(HAVE_LIBZ) && defined(HAVE_ZLIB_H)
+ if (1)
+ goto fail;
+
+ /*
+ * We may want to decompress the packet here. Packet buffer
+ * management is a headache (if we decompress, packet will become
+ * larger).
+ */
+ if (nhdr)
+ *nhdr = ipcomp->comp_nxt;
+ advance = sizeof(struct ipcomp);
+
+ printf(": ");
+ return advance;
+
+#endif
+fail:
+ return -1;
+}