Fix spaces

[tcpdump] / print-ah.c

diff --git a/print-ah.c b/print-ah.c
index a4238899b944503e8142f52be116f8f3537a744c..735226f696ecdf045067460c2cb2c7ffbf0d4c85 100644 (file)
--- a/print-ah.c
+++ b/print-ah.c
@@ -21,75 +21,42 @@
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
-#ifndef lint
-static const char rcsid[] =
-    "@(#) $Header: /tcpdump/master/tcpdump/print-ah.c,v 1.9 2000-09-28 06:42:55 guy Exp $ (LBL)";
-#endif
+/* \summary: IPSEC Authentication Header printer */
 
 #ifdef HAVE_CONFIG_H
-#include "config.h"
+#include <config.h>
 #endif
 
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-
-#include <net/route.h>
-
-#include <netinet/in.h>
-#include <netinet/in_systm.h>
+#include "netdissect-stdinc.h"
 
-#include <stdio.h>
+#include "netdissect.h"
+#include "extract.h"
 
-/* there's no standard definition so we are on our own */
-struct ah {
-       u_int8_t        ah_nxt;         /* Next Header */
-       u_int8_t        ah_len;         /* Length of data, in 32bit */
-       u_int16_t       ah_reserve;     /* Reserved for future use */
-       u_int32_t       ah_spi;         /* Security parameter index */
-       /* variable size, 32bit bound*/ /* Authentication data */
-};
-
-struct newah {
-       u_int8_t        ah_nxt;         /* Next Header */
-       u_int8_t        ah_len;         /* Length of data + 1, in 32bit */
-       u_int16_t       ah_reserve;     /* Reserved for future use */
-       u_int32_t       ah_spi;         /* Security parameter index */
-       u_int32_t       ah_seq;         /* Sequence number field */
-       /* variable size, 32bit bound*/ /* Authentication data */
-};
-
-#include "interface.h"
-#include "addrtoname.h"
+#include "ah.h"
 
 int
-ah_print(register const u_char *bp, register const u_char *bp2)
+ah_print(netdissect_options *ndo, const u_char *bp)
 {
-       register const struct ah *ah;
-       register const u_char *ep;
-       int sumlen;
-       u_int32_t spi;
+       const struct ah *ah;
+       u_int sumlen;
+
+       ndo->ndo_protocol = "ah";
+       ah = (const struct ah *)bp;
 
-       ah = (struct ah *)bp;
-       ep = snapend;           /* 'ep' points to the end of avaible data. */
+       ND_TCHECK_SIZE(ah);
 
-       if ((u_char *)(ah + 1) >= ep - sizeof(struct ah))
-               goto trunc;
+       sumlen = EXTRACT_U_1(ah->ah_len) << 2;
 
-       sumlen = ah->ah_len << 2;
-       spi = (u_int32_t)ntohl(ah->ah_spi);
+       ND_PRINT("AH(spi=0x%08x", EXTRACT_BE_U_4(ah->ah_spi));
+       if (ndo->ndo_vflag)
+               ND_PRINT(",sumlen=%u", sumlen);
+       ND_TCHECK_4(ah + 1);
+       ND_PRINT(",seq=0x%x", EXTRACT_BE_U_4(ah + 1));
+       ND_TCHECK_LEN(bp, sizeof(struct ah) + sumlen);
+       ND_PRINT("): ");
 
-       printf("AH(spi=%u", spi);
-       if (vflag)
-               printf(",sumlen=%d", sumlen);
-       printf(",seq=0x%x", (u_int32_t)ntohl(*(u_int32_t *)(ah + 1)));
-       if (bp + sizeof(struct ah) + sumlen > ep)
-               fputs("[truncated]", stdout);
-       fputs("): ", stdout);
-       
        return sizeof(struct ah) + sumlen;
  trunc:
-       fputs("[|AH]", stdout);
-       return 65535;
+       nd_print_trunc(ndo);
+       return -1;
 }