/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Authors: Jeffrey Stedfast <fejj@ximian.com>
*
* Copyright 2001 Ximian, Inc. (www.ximian.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA.
*
*/
#include <config.h>
#include "camel-tcp-stream-raw.h"
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
static CamelTcpStreamClass *parent_class = NULL;
/* Returns the class for a CamelTcpStreamRaw */
#define CTSR_CLASS(so) CAMEL_TCP_STREAM_RAW_CLASS (CAMEL_OBJECT_GET_CLASS (so))
static ssize_t stream_read (CamelStream *stream, char *buffer, size_t n);
static ssize_t stream_write (CamelStream *stream, const char *buffer, size_t n);
static int stream_flush (CamelStream *stream);
static int stream_close (CamelStream *stream);
static int stream_connect (CamelTcpStream *stream, struct hostent *host, int port);
static int stream_disconnect (CamelTcpStream *stream);
static int stream_getsockopt (CamelTcpStream *stream, CamelSockOptData *data);
static int stream_setsockopt (CamelTcpStream *stream, const CamelSockOptData *data);
static void
camel_tcp_stream_raw_class_init (CamelTcpStreamRawClass *camel_tcp_stream_raw_class)
{
CamelTcpStreamClass *camel_tcp_stream_class =
CAMEL_TCP_STREAM_CLASS (camel_tcp_stream_raw_class);
CamelStreamClass *camel_stream_class =
CAMEL_STREAM_CLASS (camel_tcp_stream_raw_class);
parent_class = CAMEL_STREAM_CLASS (camel_type_get_global_classfuncs (camel_tcp_stream_get_type ()));
/* virtual method overload */
camel_stream_class->read = stream_read;
camel_stream_class->write = stream_write;
camel_stream_class->flush = stream_flush;
camel_stream_class->close = stream_close;
camel_tcp_stream_class->connect = stream_connect;
camel_tcp_stream_class->disconnect = stream_disconnect;
camel_tcp_stream_class->getsockopt = stream_getsockopt;
camel_tcp_stream_class->setsockopt = stream_setsockopt;
}
static void
camel_tcp_stream_raw_init (gpointer object, gpointer klass)
{
CamelTcpStreamRaw *stream = CAMEL_TCP_STREAM_RAW (object);
stream->sockfd = -1;
}
static void
camel_tcp_stream_raw_finalize (CamelObject *object)
{
CamelTcpStreamRaw *stream = CAMEL_TCP_STREAM_RAW (object);
if (stream->sockfd != -1)
close (stream->sockfd);
}
CamelType
camel_tcp_stream_raw_get_type (void)
{
static CamelType type = CAMEL_INVALID_TYPE;
if (type == CAMEL_INVALID_TYPE) {
type = camel_type_register (camel_stream_get_type (),
"CamelTcpStreamRaw",
sizeof (CamelTcpStreamRaw),
sizeof (CamelTcpStreamRawClass),
(CamelObjectClassInitFunc) camel_tcp_stream_raw_class_init,
NULL,
(CamelObjectInitFunc) camel_tcp_stream_raw_init,
(CamelObjectFinalizeFunc) camel_tcp_stream_raw_finalize);
}
return type;
}
/**
* camel_tcp_stream_raw_new:
*
* Return value: a tcp stream
**/
CamelStream *
camel_tcp_stream_raw_new ()
{
CamelTcpStreamRaw *stream;
stream = CAMEL_TCP_STREAM_RAW (camel_object_new (camel_tcp_stream_raw_get_type ()));
return CAMEL_STREAM (stream);
}
static ssize_t
stream_read (CamelStream *stream, char *buffer, size_t n)
{
CamelTcpStreamRaw *tcp_stream_raw = CAMEL_TCP_STREAM_RAW (stream);
ssize_t nread;
do {
nread = read (tcp_stream_raw->sockfd, buffer, n);
} while (nread == -1 && errno == EINTR);
return nread;
}
static ssize_t
stream_write (CamelStream *stream, const char *buffer, size_t n)
{
CamelTcpStreamRaw *tcp_stream_raw = CAMEL_TCP_STREAM_RAW (stream);
ssize_t v, written = 0;
do {
v = write (tcp_stream_raw->sockfd, buffer, n);
if (v > 0)
written += v;
} while (v == -1 && errno == EINTR);
if (v == -1)
return -1;
else
return written;
}
static int
stream_flush (CamelStream *stream)
{
return fsync (((CamelTcpStreamRaw *)stream)->sockfd);
}
static int
stream_close (CamelStream *stream)
{
g_warning ("CamelTcpStreamRaw::close: Better to call ::disconnect.\n");
return close (((CamelTcpStreamRaw *)stream)->sockfd);
}
static int
stream_connect (CamelTcpStream *stream, struct hostent *host, int port)
{
CamelTcpStreamRaw *raw = CAMEL_TCP_STREAM_RAW (stream);
struct sockaddr_in sin;
int fd;
g_return_val_if_fail (host != NULL, -1);
sin.sin_family = host->h_addrtype;
sin.sin_port = htons (port);
memcpy (&sin.sin_addr, host->h_addr, sizeof (sin.sin_addr));
fd = socket (host->h_addrtype, SOCK_STREAM, 0);
if (fd == -1 || connect (fd, (struct sockaddr *)&sin, sizeof (sin)) == -1) {
if (fd > -1)
close (fd);
return -1;
}
raw->sockfd = fd;
return 0;
}
static int
stream_disconnect (CamelTcpStream *stream)
{
return close (((CamelTcpStreamRaw *)stream)->sockfd);
}
static int
get_sockopt_level (const CamelSockOptData *data)
{
switch (data->option) {
case CAMEL_SOCKOPT_MAXSEGMENT:
case CAMEL_SOCKOPT_NODELAY:
return IPPROTO_TCP;
default:
return SOL_SOCKET;
}
}
static int
get_sockopt_optname (const CamelSockOptData *data)
{
switch (data->option) {
case CAMEL_SOCKOPT_MAXSEGMENT:
return TCP_MAXSEG;
case CAMEL_SOCKOPT_NODELAY:
return TCP_NODELAY;
case CAMEL_SOCKOPT_BROADCAST:
return SO_BROADCAST;
case CAMEL_SOCKOPT_KEEPALIVE:
return SO_KEEPALIVE;
case CAMEL_SOCKOPT_LINGER:
return SO_LINGER;
case CAMEL_SOCKOPT_RECVBUFFERSIZE:
return SO_RCVBUF;
case CAMEL_SOCKOPT_SENDBUFFERSIZE:
return SO_SNDBUF;
case CAMEL_SOCKOPT_REUSEADDR:
return SO_REUSEADDR;
case CAMEL_SOCKOPT_IPTYPEOFSERVICE:
return SO_TYPE;
default:
return -1;
}
}
static int
stream_getsockopt (CamelTcpStream *stream, CamelSockOptData *data)
{
int optname, optlen;
if ((optname = get_sockopt_optname (data)) == -1)
return -1;
if (data->option == CAMEL_SOCKOPT_NONBLOCKING) {
long flags;
if (fcntl (((CamelTcpStreamRaw *)stream)->sockfd, F_GETFL, &flags) == -1)
return -1;
data->value.non_blocking = flags & O_NONBLOCK;
return 0;
}
return getsockopt (((CamelTcpStreamRaw *)stream)->sockfd,
get_sockopt_level (data),
optname,
(void *) &data->value,
&optlen);
}
static int
stream_setsockopt (CamelTcpStream *stream, const CamelSockOptData *data)
{
int optname, optlen;
if ((optname = get_sockopt_optname (data)) == -1)
return -1;
if (data->option == CAMEL_SOCKOPT_NONBLOCKING) {
guint32 flags, set;
if (fcntl (((CamelTcpStreamRaw *)stream)->sockfd, F_GETFL, &flags) == -1)
return -1;
set = data->value.non_blocking ? 1 : 0;
flags = (flags & ~O_NONBLOCK) | (set & O_NONBLOCK);
if (fcntl (((CamelTcpStreamRaw *)stream)->sockfd, F_SETFL, flags) == -1)
return -1;
return 0;
}
return setsockopt (((CamelTcpStreamRaw *)stream)->sockfd,
get_sockopt_level (data),
optname,
(void *) &data->value,
sizeof (data->value));
}
