unsecure.c
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/*
* "Software PW3270, desenvolvido com base nos códigos fontes do WC3270 e X3270
* (Paul Mattes Paul.Mattes@usa.net), de emulação de terminal 3270 para acesso a
* aplicativos mainframe. Registro no INPI sob o nome G3270.
*
* Copyright (C) <2008> <Banco do Brasil S.A.>
*
* Este programa é software livre. Você pode redistribuí-lo e/ou modificá-lo sob
* os termos da GPL v.2 - Licença Pública Geral ', conforme publicado pela
* Free Software Foundation.
*
* Este programa é distribuído na expectativa de ser útil, mas SEM QUALQUER
* GARANTIA; sem mesmo a garantia implícita de COMERCIALIZAÇÃO ou de ADEQUAÇÃO
* A QUALQUER PROPÓSITO EM PARTICULAR. Consulte a Licença Pública Geral GNU para
* obter mais detalhes.
*
* Você deve ter recebido uma cópia da Licença Pública Geral GNU junto com este
* programa; se não, escreva para a Free Software Foundation, Inc., 51 Franklin
* St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Este programa está nomeado como networking.h e possui - linhas de código.
*
* Contatos:
*
* perry.werneck@gmail.com (Alexandre Perry de Souza Werneck)
* erico.mendonca@gmail.com (Erico Mascarenhas de Mendonça)
*
*/
/**
* @brief Default networking methods.
*
*/
#include <config.h>
#ifdef _WIN32
#include <winsock.h>
#include <windows.h>
#endif // _WIN32
#include <internals.h>
#include <networking.h>
struct _lib3270_new_context {
int sock;
};
LIB3270_NET_CONTEXT * unsecure_network_init(H3270 *hSession, LIB3270_NETWORK_STATE *state) {
LIB3270_NET_CONTEXT * context = lib3270_malloc(sizeof(LIB3270_NET_CONTEXT));
context->sock = -1;
return context;
}
void unsecure_network_deinit(H3270 *hSession, LIB3270_NETWORK_STATE *state) {
unsecure_network_disconnect(hSession->network.context,hSession,state);
lib3270_free(context);
}
int unsecure_network_disconnect(H3270 *hSession, LIB3270_NETWORK_STATE *state) {
debug("%s",__FUNCTION__);
if(context->sock >= 0) {
shutdown(hSession.network.context->sock, 2);
close(hSession->network.context->sock);
hSession.network.context->sock = -1;
}
}
ssize_t unsecure_network_send(H3270 *hSession, const void *buffer, size_t length) {
if(hSession->network.context->sock < 0) {
return -(errno = ENOTCONN);
}
ssize_t bytes = send(hSession->network.context->sock,buffer,length,0);
if(bytes < 0)
return -errno;
return 0;
}
ssize_t unsecure_network_recv(H3270 *hSession, void *buf, size_t len) {
if(hSession->network.context->sock < 0) {
return -(errno = ENOTCONN);
}
ssize_t bytes = recv(hSession->network.context->sock, (char *) buffer, len, 0);
if(bytes < 0) {
return -errno;
}
return bytes;
}
int unsecure_getsockname(const H3270 *hSession, struct sockaddr *addr, socklen_t *addrlen) {
if(hSession->network.context->sock < 0)
return -(errno = ENOTCONN);
return getsockname(hSession->network.context->sock, buf, addrlen);
}
void * unsecure_add_poll(H3270 *hSession, LIB3270_IO_FLAG flag, void(*call)(H3270 *, int, LIB3270_IO_FLAG, void *), void *userdata) {
return lib3270_add_poll_fd(hSession,hSession->network.context->sock,flag,call,userdata);
}
int unsecure_non_blocking(H3270 *hSession, const unsigned char on) {
if(hSession->network.context->sock < 0)
return 0;
#ifdef WIN32
WSASetLastError(0);
u_long iMode= on ? 1 : 0;
if(ioctlsocket(hSession->network.context->sock,FIONBIO,&iMode))
{
lib3270_popup_dialog( hSession,
LIB3270_NOTIFY_ERROR,
_( "Connection error" ),
_( "ioctlsocket(FIONBIO) failed." ),
"%s", lib3270_win32_strerror(GetLastError()));
return -1;
}
#else
int f;
if ((f = fcntl(hSession->network.context->sock, F_GETFL, 0)) == -1)
{
lib3270_popup_dialog( hSession,
LIB3270_NOTIFY_ERROR,
_( "Socket error" ),
_( "fcntl() error when getting socket state." ),
_( "%s" ), strerror(errno)
);
return -1;
}
if (on)
f |= O_NDELAY;
else
f &= ~O_NDELAY;
if (fcntl(hSession->network.context->sock, F_SETFL, f) < 0)
{
lib3270_popup_dialog( hSession,
LIB3270_NOTIFY_ERROR,
_( "Socket error" ),
on ? _( "Can't set socket to blocking mode." ) : _( "Can't set socket to non blocking mode" ),
_( "%s" ), strerror(errno)
);
return -1;
}
#endif
debug("Socket %d is now %s",hSession->network.context->sock,(on ? "Non Blocking" : "Blocking"));
}
int unsecure_is_connected(H3270 *hSession) {
return hSession->network.context.sock > 0;
}
int unsecure_setsockopt(H3270 *hSession, int level, int optname, const void *optval, size_t optlen) {
if(hSession->network.context.sock < 0) {
errno = ENOTCONN;
return -1;
}
return setsockopt(hSession->network.context.sock, level, optname, optval, optlen);
}
int unsecure_getsockopt(H3270 *hSession, int level, int optname, void *optval, socklen_t *optlen) {
if(hSession->network.context.sock < 0) {
errno = ENOTCONN;
return -1;
}
return getsockopt(hSession->network.context.sock, level, optname, optval, optlen)
}