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#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "forward.h"
#include "log.h"
int fwd_init_ctx(forward_ctx **ctx, init_cb init_fn)
{
assert(ctx || init_fn);
if (!*ctx)
*ctx = (forward_ctx *) malloc(sizeof(**ctx));
assert(*ctx);
memset(*ctx, 0, sizeof(**ctx));
if (init_fn(*ctx))
return 1;
return 0;
}
int fwd_setup(forward_ctx *ctx, const char *host, const char *port)
{
int s;
struct addrinfo *fwd_addr = NULL;
assert(ctx);
s = socket_init_in(host, port, &fwd_addr);
if (s) {
E_GAIERR(s, "Could not initialise forward socket");
return 1;
}
if (!ctx->fwd_cbs.on_listen)
return 1;
if (ctx->fwd_cbs.on_listen(ctx))
return 1;
if (socket_connect_in(&ctx->sock, fwd_addr)) {
E_STRERR("Connection to forward socket");
return 1;
}
s = socket_addrtostr_in(&ctx->sock, ctx->host_buf, ctx->service_buf);
if (s) {
E_GAIERR(s, "Convert forward socket address to string");
return 1;
}
if (socket_close(&ctx->sock)) {
E_STRERR("Forward socket close");
return 1;
}
return 0;
}
int fwd_validate_ctx(const forward_ctx *ctx)
{
assert(ctx);
assert(ctx->fwd_cbs.on_listen && ctx->fwd_cbs.on_shutdown);
assert(ctx->sock.addr_len > 0);
assert(strnlen(ctx->host_buf, NI_MAXHOST) > 0);
assert(strnlen(ctx->service_buf, NI_MAXSERV) > 0);
return 0;
}
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