1 #include <netinet/in.h>
2 
3 struct smtp_filter_connect {
4 	char *hostname;
5 	int af;
6 	union {
7 		struct in_addr addr;
8 		struct in6_addr addr6;
9 	};
10 };
11 
12 enum filter_decision {
13 	FILTER_PROCEED = 0,
14 	FILTER_REJECT,
15 	FILTER_DISCONNECT,
16 	FILTER_REWRITE
17 };
18 
19 int smtp_register_filter_connect(enum filter_decision (*cb)(char *, int, time_t,
20     char *, char *, uint64_t, uint64_t, struct smtp_filter_connect *));
21 void smtp_filter_proceed(uint64_t, uint64_t);
22 void smtp_filter_reject(uint64_t, uint64_t, int, const char *, ...)
23 	__attribute__((__format__ (printf, 4, 5)));
24 void smtp_filter_disconnect(uint64_t, uint64_t, const char *, ...)
25 	__attribute__((__format__ (printf, 3, 4)));
26 void smtp_run(void);