fix for non-compiling get{addr,name}info on Cobalt

[Eugene Crosser <crosser@online.ru>]

I am not sure how kosher it is but this way the thing at least compiles:

RCS file: /cvsroot/zmailer/include/libc.h,v
retrieving revision 1.4
diff -u -r1.4 libc.h
--- libc.h      1999/12/08 14:50:10     1.4
+++ libc.h      1999/12/22 16:39:14
@@ -62,6 +62,20 @@
 #endif
 /* Must have included <netdb.h> and possibly <netdb6.h> before this .. */
 #ifdef AI_PASSIVE
+#ifndef AI_NUMERICHOST
+#define AI_NUMERICHOST 4       /* Don't use name resolution.  */
+#endif
+#ifndef NI_MAXHOST
+#define NI_MAXHOST      1025
+#define NI_MAXSERV        32
+
+#define NI_NUMERICHOST  0x01
+#define NI_NUMERICSERV  0x02
+#define NI_NAMEREQD     0x04
+#define NI_NOFQDN       0x08
+#define NI_DGRAM        0x10
+#endif
+
 #ifndef HAVE_GETADDRINFO
 extern       int   _getaddrinfo_ __((const char *, const char *, const struct
addrinfo *, struct addrinfo **, FILE *));
 extern       int   getaddrinfo __((const char *, const char *, const struct
addrinfo *, struct addrinfo **));

Eugene