Various changes to header files for tcpdump.

include/ctype.h

@@ -35,6 +35,7 @@ _PROTOTYPE( int isupper, (int  _c)  );	/* upper-case letter [A-Z] */
 _PROTOTYPE( int isxdigit,(int  _c)  );	/* hex digit [0-9], [a-f], [A-F] */
 _PROTOTYPE( int tolower, (int  _c)  );	/* convert to lower-case */
 _PROTOTYPE( int toupper, (int  _c)  );	/* convert to upper-case */
+_PROTOTYPE( int toascii, (int  _c)  );	/* convert to 7-bit ASCII */
 
 /* Macros for identifying character classes. */
 #define isalnum(c)	((__ctype+1)[c]&(_U|_L|_N))
@@ -51,4 +52,6 @@ _PROTOTYPE( int toupper, (int  _c)  );	/* convert to upper-case */
 #define isprint(c)	((unsigned) ((c)-' ') < 95)
 #define isascii(c)	((unsigned) (c) < 128)
 
+#define toascii(c)	((c) & 0x7f)
+
 #endif /* _CTYPE_H */

include/netinet/in.h

@@ -29,7 +29,9 @@ typedef uint8_t		sa_family_t;
 
 /* Protocols */
 #define IPPROTO_IP	0	/* Dummy protocol */
+#define IPPROTO_ICMP	1	/* ICMP */
 #define IPPROTO_TCP	6	/* TCP */
+#define IPPROTO_EGP	8	/* exterior gateway protocol */
 #define IPPROTO_UDP	17	/* UDP */
 
 /* setsockopt options at IP level */
@@ -57,4 +59,14 @@ struct ip_mreq
 	struct  in_addr imr_interface;
 };
 
+/* Definitions that are not part of the Open Group Base Specifications */
+#define IN_CLASSA(i)	(((uint32_t)(i) & 0x80000000) == 0)
+#define IN_CLASSA_NET	0xff000000
+
+#define IN_CLASSB(i)	(((uint32_t)(i) & 0xc0000000) == 0x80000000)
+#define IN_CLASSB_NET	0xffff0000
+
+#define IN_CLASSC(i)	(((u_int32_t)(i) & 0xe0000000) == 0xc0000000)
+#define IN_CLASSC_NET	0xffffff00
+
 #endif /* _NETINET__IN_H */

include/sys/param.h

@@ -2,6 +2,4 @@
 sys/param.h
 */
 
-/* Do we need this header file? Maybe an empty one is sufficient to avoid
- * compilations errors.
- */
+#define MAXHOSTNAMELEN  256	/* max hostname size */