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//
// Copyright 2017 Garrett D'Amore <garrett@damore.org>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
#include "core/nng_impl.h"
#ifdef PLATFORM_POSIX_NET
#include "platform/posix/posix_aio.h"
#include <arpa/inet.h>
#include <errno.h>
#include <fcntl.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <unistd.h>
static int
nni_posix_tcp_addr(struct sockaddr_storage *ss, const nni_sockaddr *sa)
{
struct sockaddr_in * sin;
struct sockaddr_in6 *sin6;
switch (sa->s_un.s_family) {
case NNG_AF_INET:
sin = (void *) ss;
memset(sin, 0, sizeof(*sin));
sin->sin_family = PF_INET;
sin->sin_port = sa->s_un.s_in.sa_port;
sin->sin_addr.s_addr = sa->s_un.s_in.sa_addr;
return (sizeof(*sin));
case NNG_AF_INET6:
sin6 = (void *) ss;
memset(sin6, 0, sizeof(*sin6));
#ifdef SIN6_LEN
sin6->sin6_len = sizeof(*sin6);
#endif
sin6->sin6_family = PF_INET6;
sin6->sin6_port = sa->s_un.s_in6.sa_port;
memcpy(sin6->sin6_addr.s6_addr, sa->s_un.s_in6.sa_addr, 16);
return (sizeof(*sin6));
}
return (-1);
}
extern int nni_tcp_parse_url(char *, char **, char **, char **, char **);
int
nni_plat_tcp_ep_init(nni_plat_tcp_ep **epp, const char *url, int mode)
{
nni_posix_epdesc * ed;
char buf[NNG_MAXADDRLEN];
int rv;
char * lhost, *rhost;
char * lserv, *rserv;
char * sep;
struct sockaddr_storage ss;
int len;
int passive;
nni_aio aio;
if ((rv = nni_posix_epdesc_init(&ed, url)) != 0) {
return (rv);
}
// Make a local copy.
snprintf(buf, sizeof(buf), "%s", url);
nni_aio_init(&aio, NULL, NULL);
if (mode == NNI_EP_MODE_DIAL) {
rv = nni_tcp_parse_url(buf, &rhost, &rserv, &lhost, &lserv);
if (rv != 0) {
goto done;
}
// We have to have a remote destination!
if ((rhost == NULL) || (rserv == NULL)) {
rv = NNG_EADDRINVAL;
goto done;
}
} else {
rv = nni_tcp_parse_url(buf, &lhost, &lserv, &rhost, &rserv);
if (rv != 0) {
goto done;
}
if ((rhost != NULL) || (rserv != NULL)) {
// remotes are nonsensical here.
rv = NNG_EADDRINVAL;
goto done;
}
if (lserv == NULL) {
// missing port to listen on!
rv = NNG_EADDRINVAL;
goto done;
}
}
if ((rserv != NULL) || (rhost != NULL)) {
nni_plat_tcp_resolv(rhost, rserv, NNG_AF_UNSPEC, 0, &aio);
nni_aio_wait(&aio);
if ((rv = nni_aio_result(&aio)) != 0) {
goto done;
}
len = nni_posix_tcp_addr(&ss, &aio.a_addrs[0]);
nni_posix_epdesc_set_remote(ed, &ss, len);
}
if ((lserv != NULL) || (lhost != NULL)) {
nni_plat_tcp_resolv(lhost, lserv, NNG_AF_UNSPEC, 1, &aio);
nni_aio_wait(&aio);
if ((rv = nni_aio_result(&aio)) != 0) {
goto done;
}
len = nni_posix_tcp_addr(&ss, &aio.a_addrs[0]);
nni_posix_epdesc_set_local(ed, &ss, len);
}
nni_aio_fini(&aio);
*epp = (void *) ed;
return (0);
done:
if (rv != 0) {
nni_posix_epdesc_fini(ed);
}
nni_aio_fini(&aio);
return (rv);
}
void
nni_plat_tcp_ep_fini(nni_plat_tcp_ep *ep)
{
nni_posix_epdesc_fini((void *) ep);
}
void
nni_plat_tcp_ep_close(nni_plat_tcp_ep *ep)
{
nni_posix_epdesc_close((void *) ep);
}
int
nni_plat_tcp_ep_listen(nni_plat_tcp_ep *ep)
{
return (nni_posix_epdesc_listen((void *) ep));
}
void
nni_plat_tcp_ep_connect(nni_plat_tcp_ep *ep, nni_aio *aio)
{
return (nni_posix_epdesc_connect((void *) ep, aio));
}
void
nni_plat_tcp_ep_accept(nni_plat_tcp_ep *ep, nni_aio *aio)
{
return (nni_posix_epdesc_accept((void *) ep, aio));
}
void
nni_plat_tcp_pipe_fini(nni_plat_tcp_pipe *p)
{
nni_posix_pipedesc_fini((void *) p);
}
void
nni_plat_tcp_pipe_close(nni_plat_tcp_pipe *p)
{
nni_posix_pipedesc_close((void *) p);
}
void
nni_plat_tcp_pipe_send(nni_plat_tcp_pipe *p, nni_aio *aio)
{
nni_posix_pipedesc_send((void *) p, aio);
}
void
nni_plat_tcp_pipe_recv(nni_plat_tcp_pipe *p, nni_aio *aio)
{
nni_posix_pipedesc_recv((void *) p, aio);
}
#else
// Suppress empty symbols warnings in ranlib.
int nni_posix_net_not_used = 0;
#endif // PLATFORM_POSIX_NET
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