* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/time.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#include <fcntl.h>
+#include <time.h>
+#include <pwd.h>
+#include <grp.h>
+
#include "socket_server.hxx"
+#include "t2n_exception.hxx"
+
+using namespace std;
namespace libt2n
{
socket_server::socket_server(int port, const char* ip)
: server()
{
- type=tcp;
+ socket_type=tcp_s;
}
-socket_server::socket_server(const char* path, mode_t chmod, const char* user, const char* group)
+socket_server::socket_server(const char* path, mode_t filemode, const char* user, const char* group)
: server()
{
- type=unix;
+ socket_type=unix_s;
unix_path=path;
- struct sockaddr_un unix_name;
-
/* Create the socket. */
- socket = socket (PF_UNIX, SOCK_STREAM, 0);
- if (socket < 0)
+ sock = socket (PF_UNIX, SOCK_STREAM, 0);
+ if (sock < 0)
{
string err="error opening socket: ";
- err+=::strerror(errno);
+ err+=strerror(errno);
+ log(error, err);
+ throw t2n_server_error(err);
+ }
+
+ set_socket_options(sock);
+
+ /* Give the socket a name. */
+ struct sockaddr_un unix_name;
+ unix_name.sun_family = AF_UNIX;
+ strncpy (unix_name.sun_path, unix_path.c_str(),sizeof(unix_name.sun_path));
+
+ /* just to make sure there is no other socket file */
+ unlink (unix_name.sun_path);
+
+ if (bind (sock, (struct sockaddr *) &unix_name, sizeof (unix_name)) < 0)
+ {
+ string err="error binding socket: ";
+ err+=strerror(errno);
+ log(error, err);
+ throw t2n_server_error(err);
+ }
+
+ /* change permissions */
+ if (chmod (unix_name.sun_path, filemode) != 0)
+ {
+ string err="error changing permission: ";
+ err+=strerror(errno);
+ log(error, err);
+ throw t2n_server_error(err);
+ }
+
+ struct passwd *socket_user = getpwnam (user);
+ if (socket_user == NULL)
+ {
+ string err="error getting socket user: ";
+ err+=strerror(errno);
+ log(error, err);
+ throw t2n_server_error(err);
+ }
+
+ struct group *socket_group = getgrnam (group);
+ if (socket_group == NULL)
+ {
+ string err="error getting socket group: ";
+ err+=strerror(errno);
+ log(error, err);
+ throw t2n_server_error(err);
+ }
+
+ if (chown (unix_name.sun_path, socket_user->pw_uid, socket_group->gr_gid) != 0)
+ {
+ string err="error changing socket ownership: ";
+ err+=strerror(errno);
+ log(error, err);
+ throw t2n_server_error(err);
+ }
+
+ if (listen (sock, 5) < 0)
+ {
+ string err="error listening to socket: ";
+ err+=strerror(errno);
+ log(error, err);
+ throw t2n_server_error(err);
+ }
+
+ /* clear & insert server sock into the fd_tab to prepare select */
+ FD_ZERO(&connection_set);
+ FD_SET (sock, &connection_set);
+}
+
+void socket_server::set_socket_options(int sock)
+{
+ int i=1;
+
+ /* fast reuse enable */
+ if (setsockopt(sock,SOL_SOCKET, SO_REUSEADDR, &i, sizeof(i)) < 0)
+ {
+ string err="error setting socket option: ";
+ err+=strerror(errno);
+ log(error, err);
+ throw t2n_server_error(err);
+ }
-// throw EXCEPTION(network_server_error,err);
+ /* keepalive enable */
+ if (setsockopt(sock,SOL_SOCKET, SO_KEEPALIVE, &i, sizeof(i)) < 0)
+ {
+ string err="error setting socket option: ";
+ err+=strerror(errno);
+ log(error, err);
+ throw t2n_server_error(err);
}
+ /* close on exec */
+ int fdflags;
+ fdflags=fcntl(sock,F_GETFD, 0);
+ if (fdflags < 0)
+ {
+ string err="fcntl error on socket: ";
+ err+=strerror(errno);
+ log(error, err);
+ throw t2n_server_error(err);
+ }
+ fdflags |= FD_CLOEXEC;
+ if (fcntl(sock,F_SETFD,fdflags) < 0)
+ {
+ string err="fcntl error on socket: ";
+ err+=strerror(errno);
+ log(error, err);
+ throw t2n_server_error(err);
+ }
+
+ /* non-blocking mode */
+ int flflags;
+ flflags=fcntl(sock,F_GETFL,0);
+ if (flflags < 0)
+ {
+ string err="fcntl error on socket: ";
+ err+=strerror(errno);
+ log(error, err);
+ throw t2n_server_error(err);
+ }
+ flflags |= O_NONBLOCK;
+ if (fcntl(sock,F_SETFL,flflags) < 0)
+ {
+ string err="fcntl error on socket: ";
+ err+=strerror(errno);
+ log(error, err);
+ throw t2n_server_error(err);
+ }
}
socket_server::~socket_server()
{
- close(socket);
+ close(sock);
- if (type==unix)
+ if (socket_type==unix_s)
unlink(unix_path.c_str());
}
+void socket_server::new_connection()
+{
+}
void socket_server::fill_buffer(long long usec_timeout)
{
+ fd_set used_fdset=connection_set;
+
+ /* set timeout */
+ struct timeval tval;
+ struct timeval *timeout_ptr;
+
+ if (usec_timeout == -1)
+ timeout_ptr = NULL;
+ else
+ {
+ timeout_ptr = &tval;
+
+ // timeout von long long usec in int sec + int usec umrechnen
+ tval.tv_sec = usec_timeout / 1000000;
+ tval.tv_usec = usec_timeout % 1000000;
+ }
+
+ int ret=select (FD_SETSIZE, &used_fdset, NULL, NULL, timeout_ptr);
+
+ if (ret < 0)
+ {
+ if (errno == EINTR)
+ {
+ // select interrupted by signal
+ ret=0;
+ }
+ else
+ {
+ string err="select error: ";
+ err+=strerror(errno);
+ log(error, err);
+ throw t2n_server_error(err);
+ }
+ }
+
+ if (ret > 0)
+ {
+ // we have data pending
+
+ // check for new connection
+ if (FD_ISSET (sock, &used_fdset))
+ {
+ new_connection();
+ }
+
+ // check all connections for pending data
+ fill_connection_buffers();
+ }
+ return;
}
socket_connection::socket_connection(int _socket, int _timeout)
git://developer.intra2net.com / libt2n / blobdiff