#ifndef PUTTY_NETWORK_H
#define PUTTY_NETWORK_H
+#ifndef DONE_TYPEDEFS
+#define DONE_TYPEDEFS
+typedef struct config_tag Config;
+typedef struct backend_tag Backend;
+typedef struct terminal_tag Terminal;
+#endif
+
typedef struct SockAddr_tag *SockAddr;
/* pay attention to levels of indirection */
typedef struct socket_function_table **Socket;
/* if p is NULL, it doesn't change the plug */
/* but it does return the one it's using */
void (*close) (Socket s);
- int (*write) (Socket s, char *data, int len);
- int (*write_oob) (Socket s, char *data, int len);
+ int (*write) (Socket s, const char *data, int len);
+ int (*write_oob) (Socket s, const char *data, int len);
void (*flush) (Socket s);
+ void (*set_private_ptr) (Socket s, void *ptr);
+ void *(*get_private_ptr) (Socket s);
+ void (*set_frozen) (Socket s, int is_frozen);
/* ignored by tcp, but vital for ssl */
char *(*socket_error) (Socket s);
};
*/
};
+/* proxy indirection layer */
+Socket new_connection(SockAddr addr, char *hostname,
+ int port, int privport,
+ int oobinline, int nodelay, Plug plug,
+ const Config *cfg);
+Socket new_listener(char *srcaddr, int port, Plug plug, int local_host_only,
+ const Config *cfg);
+SockAddr name_lookup(char *host, int port, char **canonicalname,
+ const Config *cfg);
+
+/* socket functions */
void sk_init(void); /* called once at program startup */
void sk_cleanup(void); /* called just before program exit */
-SockAddr sk_namelookup(char *host, char **canonicalname);
+SockAddr sk_namelookup(const char *host, char **canonicalname);
+SockAddr sk_nonamelookup(const char *host);
void sk_getaddr(SockAddr addr, char *buf, int buflen);
+int sk_hostname_is_local(char *name);
+int sk_address_is_local(SockAddr addr);
+enum { ADDRTYPE_IPV4, ADDRTYPE_IPV6, ADDRTYPE_NAME };
+int sk_addrtype(SockAddr addr);
+void sk_addrcopy(SockAddr addr, char *buf);
void sk_addr_free(SockAddr addr);
Socket sk_new(SockAddr addr, int port, int privport, int oobinline,
int nodelay, Plug p);
-Socket sk_newlistener(int port, Plug plug, int local_host_only);
+Socket sk_newlistener(char *srcaddr, int port, Plug plug, int local_host_only);
Socket sk_register(void *sock, Plug plug);
* This is perhaps unnecessary now that we have the notion of a plug,
* but there is some existing code that uses it, so it stays.
*/
-void sk_set_private_ptr(Socket s, void *ptr);
-void *sk_get_private_ptr(Socket s);
+#define sk_set_private_ptr(s, ptr) (((*s)->set_private_ptr) (s, ptr))
+#define sk_get_private_ptr(s) (((*s)->get_private_ptr) (s))
/*
* Special error values are returned from sk_namelookup and sk_new
* associated local socket in order to avoid unbounded buffer
* growth.
*/
-void sk_set_frozen(Socket sock, int is_frozen);
+#define sk_set_frozen(s, is_frozen) (((*s)->set_frozen) (s, is_frozen))
/*
* Call this after an operation that might have tried to send on a
*/
void net_pending_errors(void);
+/*
+ * Simple wrapper on getservbyname(), needed by ssh.c. Returns the
+ * port number, in host byte order (suitable for printf and so on).
+ * Returns 0 on failure. Any platform not supporting getservbyname
+ * can just return 0 - this function is not required to handle
+ * numeric port specifications.
+ */
+int net_service_lookup(char *service);
+
/********** SSL stuff **********/
/*