src/forward.h


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

#ifndef POTD_FORWARD_H
#define POTD_FORWARD_H 1

#include "socket.h"

struct forward_ctx;

typedef int (*init_cb) (struct forward_ctx *ctx);
typedef int (*on_listen_cb) (struct forward_ctx *ctx, const char *host,
                             const char *port);
typedef int (*on_shutdown_cb) (struct forward_ctx *ctx);

typedef struct fwd_callbacks {
    on_listen_cb on_listen;
    on_shutdown_cb on_shutdown;
} fwd_callbacks;

typedef enum forward_type {
    FT_NONE = 0, FT_CLIENT, FT_SERVER
} forward_type;

typedef struct forward_ctx {
    forward_type fwd_type;
    fwd_callbacks fwd_cbs;
    psocket sock;
    char host_buf[NI_MAXHOST], service_buf[NI_MAXSERV];
    void *data;
} forward_ctx;


int fwd_init_ctx(forward_ctx **ctx, init_cb init_fn);

int fwd_setup_client(forward_ctx *ctx, const char *host, const char *port);

int fwd_setup_server(forward_ctx *ctx, const char *listen_addr,
                                       const char *listen_port);

int fwd_validate_ctx(const forward_ctx *ctx);

int fwd_connect_sock(forward_ctx *ctx, psocket *fwd_client);

int fwd_listen_sock(forward_ctx *ctx, psocket *fwd_server);

#endif