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- /* @(#) log_tcp.h 1.4 93/07/02 16:33:27 */
-
- /* Location of the access control files. */
-
- #ifndef HOSTS_ALLOW
- #define HOSTS_ALLOW "/etc/hosts.allow"
- #endif
-
- #ifndef HOSTS_DENY
- #define HOSTS_DENY "/etc/hosts.deny"
- #endif
-
- /* Structure filled in by the fromhost() routine. */
-
- struct from_host {
- int sock_type; /* socket type, see below */
- char *name; /* host name */
- char *addr; /* host address */
- char *user; /* user name */
- struct sockaddr_in *sin; /* their side of the link */
- void (*sink)(); /* datagram sink function */
- };
-
- #define FROM_UNKNOWN "unknown" /* name or address lookup failed */
- #define FROM_HOST(f) \
- (((f)->name[0] && strcmp((f)->name, FROM_UNKNOWN)) ? (f)->name : (f)->addr)
-
- #define FROM_ADDRLEN (4*3+3+1) /* string with IP address */
-
- /* Socket types: 0 means unknown. */
-
- #define FROM_CONNECTED 1 /* connection-oriented */
- #define FROM_UNCONNECTED 2 /* non connection-oriented */
-
- /* Global functions. */
-
- extern int fromhost(); /* get/validate remote host info */
- extern int hosts_access(); /* access control */
- extern void refuse(); /* refuse request */
- extern void shell_cmd(); /* execute shell command */
- extern void percent_x(); /* do %<char> expansion */
- extern char *rfc931_name(); /* remote name from RFC 931 daemon */
- extern char *hosts_info(); /* show origin of connection */
- extern void clean_exit(); /* clean up and exit */
-
- /* Global variables. */
-
- extern int log_severity; /* for connection logging */
-