#ifndef __GSOCKET_STANDALONE__
#include "wx/defs.h"
+#include "wx/private/gsocketiohandler.h"
+#include "wx/thread.h" // for wxThread::IsMain() used in assert
#endif
#if defined(__VISAGECPP__)
#include <netdb.h>
#include <sys/ioctl.h>
+#ifdef HAVE_SYS_SELECT_H
+# include <sys/select.h>
+#endif
+
#ifdef __VMS__
#include <socket.h>
struct sockaddr_un
const struct hostent *he,
char *buffer, int size, int *err)
{
+ /* copy old structure */
memcpy(h, he, sizeof(struct hostent));
+
+ /* copy name */
int len = strlen(h->h_name);
if (len > size)
- len = size - 1;
+ {
+ *err = ENOMEM;
+ return NULL;
+ }
memcpy(buffer, h->h_name, len);
buffer[len] = '\0';
h->h_name = buffer;
- buffer += len + 1;
- size -= len + 1;
+
+ /* track position in the buffer */
+ int pos = len + 1;
+
+ /* reuse len to store address length */
len = h->h_length;
- for (char **p = h->h_addr_list; *p != 0; p++) {
- if (size < len){
+
+ /* ensure pointer alignment */
+ unsigned int misalign = sizeof(char *) - pos%sizeof(char *);
+ if(misalign < sizeof(char *))
+ pos += misalign;
+
+ /* leave space for pointer list */
+ char **p = h->h_addr_list, **q;
+ char **h_addr_list = (char **)(buffer + pos);
+ while(*(p++) != 0)
+ pos += sizeof(char *);
+
+ /* copy addresses and fill new pointer list */
+ for (p = h->h_addr_list, q = h_addr_list; *p != 0; p++, q++)
+ {
+ if (size < pos + len)
+ {
+ *err = ENOMEM;
+ return NULL;
+ }
+ memcpy(buffer + pos, *p, len); /* copy content */
+ *q = buffer + pos; /* set copied pointer to copied content */
+ pos += len;
+ }
+ *++q = 0; /* null terminate the pointer list */
+ h->h_addr_list = h_addr_list; /* copy pointer to pointers */
+
+ /* ensure word alignment of pointers */
+ misalign = sizeof(char *) - pos%sizeof(char *);
+ if(misalign < sizeof(char *))
+ pos += misalign;
+
+ /* leave space for pointer list */
+ p = h->h_aliases;
+ char **h_aliases = (char **)(buffer + pos);
+ while(*(p++) != 0)
+ pos += sizeof(char *);
+
+ /* copy aliases and fill new pointer list */
+ for (p = h->h_aliases, q = h_aliases; *p != 0; p++, q++)
+ {
+ len = strlen(*p);
+ if (size <= pos + len)
+ {
*err = ENOMEM;
return NULL;
}
- memcpy(buffer, *p, len);
- *p = buffer;
- buffer += len;
- size -= len;
- }
- for (char **q = h->h_aliases; size > 0 && *q != 0; q++){
- len = strlen(*q);
- if (len > size)
- len = size - 1;
- memcpy(buffer, *q, len);
- buffer[len] = '\0';
- *q = buffer;
- buffer += len + 1;
- size -= len + 1;
+ memcpy(buffer + pos, *p, len); /* copy content */
+ buffer[pos + len] = '\0';
+ *q = buffer + pos; /* set copied pointer to copied content */
+ pos += len + 1;
}
+ *++q = 0; /* null terminate the pointer list */
+ h->h_aliases = h_aliases; /* copy pointer to pointers */
+
return h;
}
#endif
+#if defined(HAVE_GETHOSTBYNAME) && wxUSE_THREADS
+static wxMutex nameLock;
+#endif
struct hostent * wxGethostbyname_r(const char *hostname, struct hostent *h,
void *buffer, int size, int *err)
{
- struct hostent *he;
+ struct hostent *he = NULL;
*err = 0;
#if defined(HAVE_FUNC_GETHOSTBYNAME_R_6)
if (gethostbyname_r(hostname, h, (char*)buffer, size, &he, err))
he = h;
#elif defined(HAVE_GETHOSTBYNAME)
#if wxUSE_THREADS
- static wxMutex nameLock;
wxMutexLocker locker(nameLock);
#endif
he = gethostbyname(hostname);
return he;
}
+#if defined(HAVE_GETHOSTBYNAME) && wxUSE_THREADS
+static wxMutex addrLock;
+#endif
struct hostent * wxGethostbyaddr_r(const char *addr_buf, int buf_size,
int proto, struct hostent *h,
void *buffer, int size, int *err)
{
- struct hostent *he;
+ struct hostent *he = NULL;
*err = 0;
#if defined(HAVE_FUNC_GETHOSTBYNAME_R_6)
if (gethostbyaddr_r(addr_buf, buf_size, proto, h,
he = h;
#elif defined(HAVE_GETHOSTBYNAME)
#if wxUSE_THREADS
- static wxMutex addrLock;
wxMutexLocker locker(addrLock);
#endif
he = gethostbyaddr(addr_buf, buf_size, proto);
return he;
}
-#if defined(HAVE_GETHOSTBYNAME)
+#if defined(HAVE_GETSERVBYNAME)
static struct servent * deepCopyServent(struct servent *s,
const struct servent *se,
char *buffer, int size)
{
+ /* copy plain old structure */
memcpy(s, se, sizeof(struct servent));
+
+ /* copy name */
int len = strlen(s->s_name);
- if (len > size)
- len = size - 1;
+ if (len >= size)
+ {
+ return NULL;
+ }
memcpy(buffer, s->s_name, len);
buffer[len] = '\0';
s->s_name = buffer;
- buffer += len + 1;
- size -= len + 1;
+
+ /* track position in the buffer */
+ int pos = len + 1;
+
+ /* copy protocol */
len = strlen(s->s_proto);
- if (len > size)
- len = size - 1;
- memcpy(buffer, s->s_proto, len);
- buffer[len] = '\0';
- s->s_proto = buffer;
- buffer += len + 1;
- size -= len + 1;
- for (char **q = s->s_aliases; size > 0 && *q != 0; q++){
- len = strlen(*q);
- if (len > size)
- len = size - 1;
- memcpy(buffer, *q, len);
- buffer[len] = '\0';
- *q = buffer;
- buffer += len + 1;
- size -= len + 1;
+ if (pos + len >= size)
+ {
+ return NULL;
}
+ memcpy(buffer + pos, s->s_proto, len);
+ buffer[pos + len] = '\0';
+ s->s_proto = buffer + pos;
+
+ /* track position in the buffer */
+ pos += len + 1;
+
+ /* ensure pointer alignment */
+ unsigned int misalign = sizeof(char *) - pos%sizeof(char *);
+ if(misalign < sizeof(char *))
+ pos += misalign;
+
+ /* leave space for pointer list */
+ char **p = s->s_aliases, **q;
+ char **s_aliases = (char **)(buffer + pos);
+ while(*(p++) != 0)
+ pos += sizeof(char *);
+
+ /* copy addresses and fill new pointer list */
+ for (p = s->s_aliases, q = s_aliases; *p != 0; p++, q++){
+ len = strlen(*p);
+ if (size <= pos + len)
+ {
+ return NULL;
+ }
+ memcpy(buffer + pos, *p, len); /* copy content */
+ buffer[pos + len] = '\0';
+ *q = buffer + pos; /* set copied pointer to copied content */
+ pos += len + 1;
+ }
+ *++q = 0; /* null terminate the pointer list */
+ s->s_aliases = s_aliases; /* copy pointer to pointers */
return s;
}
#endif
+#if defined(HAVE_GETSERVBYNAME) && wxUSE_THREADS
+static wxMutex servLock;
+#endif
struct servent *wxGetservbyname_r(const char *port, const char *protocol,
struct servent *serv, void *buffer, int size)
{
- struct servent *se;
+ struct servent *se = NULL;
#if defined(HAVE_FUNC_GETSERVBYNAME_R_6)
if (getservbyname_r(port, protocol, serv, (char*)buffer, size, &se))
se = NULL;
se = serv;
#elif defined(HAVE_GETSERVBYNAME)
#if wxUSE_THREADS
- static wxMutex servLock;
wxMutexLocker locker(servLock);
#endif
se = getservbyname(port, protocol);
# define GSocket_Debug(args)
#endif /* __GSOCKET_DEBUG__ */
+#if wxUSE_IPV6
+typedef struct sockaddr_storage wxSockAddr;
+#else
+typedef struct sockaddr wxSockAddr;
+#endif
+
/* Table of GUI-related functions. We must call them indirectly because
* of wxBase and GUI separation: */
-static GSocketGUIFunctionsTable *gs_gui_functions;
-
-class GSocketGUIFunctionsTableNull: public GSocketGUIFunctionsTable
-{
-public:
- virtual bool OnInit();
- virtual void OnExit();
- virtual bool CanUseEventLoop();
- virtual bool Init_Socket(GSocket *socket);
- virtual void Destroy_Socket(GSocket *socket);
- virtual void Install_Callback(GSocket *socket, GSocketEvent event);
- virtual void Uninstall_Callback(GSocket *socket, GSocketEvent event);
- virtual void Enable_Events(GSocket *socket);
- virtual void Disable_Events(GSocket *socket);
-};
-
-bool GSocketGUIFunctionsTableNull::OnInit()
-{ return true; }
-void GSocketGUIFunctionsTableNull::OnExit()
-{}
-bool GSocketGUIFunctionsTableNull::CanUseEventLoop()
-{ return false; }
-bool GSocketGUIFunctionsTableNull::Init_Socket(GSocket *WXUNUSED(socket))
-{ return true; }
-void GSocketGUIFunctionsTableNull::Destroy_Socket(GSocket *WXUNUSED(socket))
-{}
-void GSocketGUIFunctionsTableNull::Install_Callback(GSocket *WXUNUSED(socket), GSocketEvent WXUNUSED(event))
-{}
-void GSocketGUIFunctionsTableNull::Uninstall_Callback(GSocket *WXUNUSED(socket), GSocketEvent WXUNUSED(event))
-{}
-void GSocketGUIFunctionsTableNull::Enable_Events(GSocket *WXUNUSED(socket))
-{}
-void GSocketGUIFunctionsTableNull::Disable_Events(GSocket *WXUNUSED(socket))
-{}
-/* Global initialisers */
-
-void GSocket_SetGUIFunctions(GSocketGUIFunctionsTable *guifunc)
+bool GSocket_Init()
{
- gs_gui_functions = guifunc;
+ GSocketManager * const manager = GSocketManager::Get();
+ return manager && manager->OnInit();
}
-int GSocket_Init(void)
+void GSocket_Cleanup()
{
- if (!gs_gui_functions)
- {
- static GSocketGUIFunctionsTableNull table;
- gs_gui_functions = &table;
- }
- if ( !gs_gui_functions->OnInit() )
- return 0;
- return 1;
-}
-
-void GSocket_Cleanup(void)
-{
- if (gs_gui_functions)
- {
- gs_gui_functions->OnExit();
- }
+ GSocketManager * const manager = GSocketManager::Get();
+ if ( manager )
+ manager->OnExit();
}
/* Constructors / Destructors for GSocket */
int i;
m_fd = INVALID_SOCKET;
+ m_handler = NULL;
+
for (i=0;i<GSOCK_MAX_EVENT;i++)
{
m_cbacks[i] = NULL;
m_gui_dependent = NULL;
m_non_blocking = false;
m_reusable = false;
+ m_broadcast = false;
+ m_dobind = true;
m_timeout = 10*60*1000;
/* 10 minutes * 60 sec * 1000 millisec */
m_establishing = false;
+ m_use_events = false;
+ m_initialRecvBufferSize = -1;
+ m_initialSendBufferSize = -1;
- assert(gs_gui_functions);
- /* Per-socket GUI-specific initialization */
- m_ok = gs_gui_functions->Init_Socket(this);
+ m_ok = GSocketManager::Get()->Init_Socket(this);
}
void GSocket::Close()
{
- gs_gui_functions->Disable_Events(this);
- /* gsockosx.c calls CFSocketInvalidate which closes the socket for us */
-#if !(defined(__DARWIN__) && (defined(__WXMAC__) || defined(__WXCOCOA__)))
- close(m_fd);
-#endif
+ if (m_use_events)
+ DisableEvents();
+
+ /* When running on OS X, the gsockosx implementation of GSocketGUIFunctionsTable
+ will close the socket during Disable_Events. However, it will only do this
+ if it is being used. That is, it won't do it in a console program. To
+ ensure we get the right behavior, we have gsockosx set m_fd = INVALID_SOCKET
+ if it has closed the socket which indicates to us (at runtime, instead of
+ at compile time as this had been before) that the socket has already
+ been closed.
+ */
+ if(m_fd != INVALID_SOCKET)
+ close(m_fd);
m_fd = INVALID_SOCKET;
}
if (m_fd != INVALID_SOCKET)
Shutdown();
- /* Per-socket GUI-specific cleanup */
- gs_gui_functions->Destroy_Socket(this);
+ GSocketManager::Get()->Destroy_Socket(this);
+
+ delete m_handler;
/* Destroy private addresses */
if (m_local)
if (m_peer)
GAddress_destroy(m_peer);
+
}
/* GSocket_Shutdown:
assert(this);
/* Don't allow events to fire after socket has been closed */
- gs_gui_functions->Disable_Events(this);
+ if (m_use_events)
+ DisableEvents();
/* If socket has been created, shutdown it */
if (m_fd != INVALID_SOCKET)
{
- shutdown(m_fd, 2);
+ shutdown(m_fd, 1);
Close();
}
GAddress *GSocket::GetLocal()
{
GAddress *address;
- struct sockaddr addr;
+ wxSockAddr addr;
WX_SOCKLEN_T size = sizeof(addr);
GSocketError err;
return NULL;
}
- if (getsockname(m_fd, &addr, (WX_SOCKLEN_T *) &size) < 0)
+ if (getsockname(m_fd, (sockaddr*)&addr, (WX_SOCKLEN_T *) &size) < 0)
{
m_error = GSOCK_IOERR;
return NULL;
return NULL;
}
- err = _GAddress_translate_from(address, &addr, size);
+ err = _GAddress_translate_from(address, (sockaddr*)&addr, size);
if (err != GSOCK_NOERROR)
{
GAddress_destroy(address);
/* FreeBSD variants can't use MSG_NOSIGNAL, and instead use a socket option */
#ifdef SO_NOSIGPIPE
- setsockopt(m_fd, SOL_SOCKET, SO_NOSIGPIPE, (const char*)&arg, sizeof(u_long));
+ setsockopt(m_fd, SOL_SOCKET, SO_NOSIGPIPE, (const char*)&arg, sizeof(arg));
#endif
ioctl(m_fd, FIONBIO, &arg);
- gs_gui_functions->Enable_Events(this);
+ if (m_use_events)
+ EnableEvents();
/* allow a socket to re-bind if the socket is in the TIME_WAIT
state after being previously closed.
*/
if (m_reusable)
- setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (const char*)&arg, sizeof(u_long));
+ {
+ setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (const char*)&arg, sizeof(arg));
+#ifdef SO_REUSEPORT
+ setsockopt(m_fd, SOL_SOCKET, SO_REUSEPORT, (const char*)&arg, sizeof(arg));
+#endif
+ }
/* Bind to the local address,
* retrieve the actual address bound,
*/
GSocket *GSocket::WaitConnection()
{
- struct sockaddr from;
+ wxSockAddr from;
WX_SOCKLEN_T fromlen = sizeof(from);
GSocket *connection;
GSocketError err;
return NULL;
}
- connection->m_fd = accept(m_fd, &from, (WX_SOCKLEN_T *) &fromlen);
+ connection->m_fd = accept(m_fd, (sockaddr*)&from, (WX_SOCKLEN_T *) &fromlen);
/* Reenable CONNECTION events */
Enable(GSOCK_CONNECTION);
return NULL;
}
- err = _GAddress_translate_from(connection->m_peer, &from, fromlen);
+ err = _GAddress_translate_from(connection->m_peer, (sockaddr*)&from, fromlen);
if (err != GSOCK_NOERROR)
{
delete connection;
#else
ioctl(connection->m_fd, FIONBIO, &arg);
#endif
- gs_gui_functions->Enable_Events(connection);
+ if (m_use_events)
+ connection->Notify(true);
return connection;
}
+void GSocket::Notify(bool flag)
+{
+ if (flag == m_use_events)
+ return;
+#if wxUSE_THREADS
+ // it is not safe to attach or detach i/o descriptor in child thread
+ wxASSERT_MSG( wxThread::IsMain(), "should be called in main thread only" );
+#endif
+ m_use_events = flag;
+ EnableEvents(flag);
+}
+
+void GSocket::EnableEvents(bool flag)
+{
+ if (flag)
+ GSocketManager::Get()->Enable_Events(this);
+ else
+ GSocketManager::Get()->Disable_Events(this);
+}
+
bool GSocket::SetReusable()
{
/* socket must not be null, and must not be in use/already bound */
return false;
}
+bool GSocket::SetBroadcast()
+{
+ /* socket must not be in use/already bound */
+ if (m_fd == INVALID_SOCKET) {
+ m_broadcast = true;
+ return true;
+ }
+ return false;
+}
+
+bool GSocket::DontDoBind()
+{
+ /* socket must not be in use/already bound */
+ if (m_fd == INVALID_SOCKET) {
+ m_dobind = false;
+ return true;
+ }
+ return false;
+}
+
/* Client specific parts */
/* GSocket_Connect:
/* FreeBSD variants can't use MSG_NOSIGNAL, and instead use a socket option */
#ifdef SO_NOSIGPIPE
- setsockopt(m_fd, SOL_SOCKET, SO_NOSIGPIPE, (const char*)&arg, sizeof(u_long));
+ setsockopt(m_fd, SOL_SOCKET, SO_NOSIGPIPE, (const char*)&arg, sizeof(arg));
#endif
#if defined(__EMX__) || defined(__VISAGECPP__)
ioctl(m_fd, FIONBIO, &arg);
#endif
+ // If the reuse flag is set, use the applicable socket reuse flags(s)
+ if (m_reusable)
+ {
+ setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (const char*)&arg, sizeof(arg));
+#ifdef SO_REUSEPORT
+ setsockopt(m_fd, SOL_SOCKET, SO_REUSEPORT, (const char*)&arg, sizeof(arg));
+#endif
+ }
+
+ if (m_initialRecvBufferSize >= 0)
+ setsockopt(m_fd, SOL_SOCKET, SO_RCVBUF, (const char*)&m_initialRecvBufferSize, sizeof(m_initialRecvBufferSize));
+ if (m_initialSendBufferSize >= 0)
+ setsockopt(m_fd, SOL_SOCKET, SO_SNDBUF, (const char*)&m_initialSendBufferSize, sizeof(m_initialSendBufferSize));
+
+ // If a local address has been set, then we need to bind to it before calling connect
+ if (m_local && m_local->m_addr)
+ {
+ bind(m_fd, m_local->m_addr, m_local->m_len);
+ }
+
/* Connect it to the peer address, with a timeout (see below) */
ret = connect(m_fd, m_peer->m_addr, m_peer->m_len);
* call to Enable_Events now.
*/
- if (m_non_blocking || ret == 0)
- gs_gui_functions->Enable_Events(this);
+ if (m_use_events && (m_non_blocking || ret == 0))
+ EnableEvents();
if (ret == -1)
{
SOCKOPTLEN_T len = sizeof(error);
getsockopt(m_fd, SOL_SOCKET, SO_ERROR, (char*) &error, &len);
-
- gs_gui_functions->Enable_Events(this);
+ if (m_use_events)
+ EnableEvents();
if (!error)
return GSOCK_NOERROR;
#else
ioctl(m_fd, FIONBIO, &arg);
#endif
- gs_gui_functions->Enable_Events(this);
+ if (m_use_events)
+ EnableEvents();
- /* Bind to the local address,
- * and retrieve the actual address bound.
- */
- if ((bind(m_fd, m_local->m_addr, m_local->m_len) != 0) ||
- (getsockname(m_fd,
- m_local->m_addr,
- (WX_SOCKLEN_T *) &m_local->m_len) != 0))
+ if (m_reusable)
{
- Close();
- m_error = GSOCK_IOERR;
- return GSOCK_IOERR;
+ setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (const char*)&arg, sizeof(arg));
+#ifdef SO_REUSEPORT
+ setsockopt(m_fd, SOL_SOCKET, SO_REUSEPORT, (const char*)&arg, sizeof(arg));
+#endif
}
+ if (m_broadcast)
+ {
+ setsockopt(m_fd, SOL_SOCKET, SO_BROADCAST, (const char*)&arg, sizeof(arg));
+ }
+ if (m_dobind)
+ {
+ /* Bind to the local address,
+ * and retrieve the actual address bound.
+ */
+ if ((bind(m_fd, m_local->m_addr, m_local->m_len) != 0) ||
+ (getsockname(m_fd,
+ m_local->m_addr,
+ (WX_SOCKLEN_T *) &m_local->m_len) != 0))
+ {
+ Close();
+ m_error = GSOCK_IOERR;
+ return GSOCK_IOERR;
+ }
+ }
return GSOCK_NOERROR;
}
else
ret = Recv_Dgram(buffer, size);
- /* If recv returned zero, then the connection is lost, and errno is not set.
- * Otherwise, recv has returned an error (-1), in which case we have lost the
- * socket only if errno does _not_ indicate that there may be more data to read.
+ /*
+ * If recv returned zero for a TCP socket (if m_stream == NULL, it's an UDP
+ * socket and empty datagrams are possible), then the connection has been
+ * gracefully closed.
+ *
+ * Otherwise, recv has returned an error (-1), in which case we have lost
+ * the socket only if errno does _not_ indicate that there may be more data
+ * to read.
*/
- if (ret == 0)
- m_error = GSOCK_IOERR;
+ if ((ret == 0) && m_stream)
+ {
+ /* Make sure wxSOCKET_LOST event gets sent and shut down the socket */
+ if (m_use_events)
+ {
+ m_detected = GSOCK_LOST_FLAG;
+ Detected_Read();
+ return 0;
+ }
+ }
else if (ret == -1)
{
if ((errno == EWOULDBLOCK) || (errno == EAGAIN))
*/
GSocketEventFlags GSocket::Select(GSocketEventFlags flags)
{
- if (!gs_gui_functions->CanUseEventLoop())
- {
-
- GSocketEventFlags result = 0;
- fd_set readfds;
- fd_set writefds;
- fd_set exceptfds;
- struct timeval tv;
+ assert(this);
- assert(this);
+ GSocketEventFlags result = 0;
+ fd_set readfds;
+ fd_set writefds;
+ fd_set exceptfds;
+ struct timeval tv;
- if (m_fd == -1)
- return (GSOCK_LOST_FLAG & flags);
+ if (m_fd == -1)
+ return (GSOCK_LOST_FLAG & flags);
- /* Do not use a static struct, Linux can garble it */
- tv.tv_sec = m_timeout / 1000;
- tv.tv_usec = (m_timeout % 1000) * 1000;
+ /* Do not use a static struct, Linux can garble it */
+ tv.tv_sec = 0;
+ tv.tv_usec = 0;
- wxFD_ZERO(&readfds);
- wxFD_ZERO(&writefds);
- wxFD_ZERO(&exceptfds);
- wxFD_SET(m_fd, &readfds);
- if (flags & GSOCK_OUTPUT_FLAG || flags & GSOCK_CONNECTION_FLAG)
- wxFD_SET(m_fd, &writefds);
- wxFD_SET(m_fd, &exceptfds);
+ wxFD_ZERO(&readfds);
+ wxFD_ZERO(&writefds);
+ wxFD_ZERO(&exceptfds);
+ wxFD_SET(m_fd, &readfds);
+ if (flags & GSOCK_OUTPUT_FLAG || flags & GSOCK_CONNECTION_FLAG)
+ wxFD_SET(m_fd, &writefds);
+ wxFD_SET(m_fd, &exceptfds);
- /* Check 'sticky' CONNECTION flag first */
- result |= (GSOCK_CONNECTION_FLAG & m_detected);
+ /* Check 'sticky' CONNECTION flag first */
+ result |= GSOCK_CONNECTION_FLAG & m_detected;
- /* If we have already detected a LOST event, then don't try
- * to do any further processing.
- */
- if ((m_detected & GSOCK_LOST_FLAG) != 0)
- {
- m_establishing = false;
+ /* If we have already detected a LOST event, then don't try
+ * to do any further processing.
+ */
+ if ((m_detected & GSOCK_LOST_FLAG) != 0)
+ {
+ m_establishing = false;
+ return (GSOCK_LOST_FLAG & flags);
+ }
- return (GSOCK_LOST_FLAG & flags);
- }
+ /* Try select now */
+ if (select(m_fd + 1, &readfds, &writefds, &exceptfds, &tv) < 0)
+ {
+ /* What to do here? */
+ return (result & flags);
+ }
- /* Try select now */
- if (select(m_fd + 1, &readfds, &writefds, &exceptfds, &tv) <= 0)
- {
- /* What to do here? */
- return (result & flags);
- }
+ /* Check for exceptions and errors */
+ if (wxFD_ISSET(m_fd, &exceptfds))
+ {
+ m_establishing = false;
+ m_detected = GSOCK_LOST_FLAG;
- /* Check for readability */
- if (wxFD_ISSET(m_fd, &readfds))
- {
- char c;
+ /* LOST event: Abort any further processing */
+ return (GSOCK_LOST_FLAG & flags);
+ }
- int num = recv(m_fd, &c, 1, MSG_PEEK | GSOCKET_MSG_NOSIGNAL);
+ /* Check for readability */
+ if (wxFD_ISSET(m_fd, &readfds))
+ {
+ result |= GSOCK_INPUT_FLAG;
- if (num > 0)
- {
- result |= GSOCK_INPUT_FLAG;
- }
- else
- {
- if (m_server && m_stream)
- {
- result |= GSOCK_CONNECTION_FLAG;
- m_detected |= GSOCK_CONNECTION_FLAG;
- }
- /* If recv returned zero, then the connection is lost, and errno is not set.
- * Otherwise, recv has returned an error (-1), in which case we have lost the
- * socket only if errno does _not_ indicate that there may be more data to read.
- */
- else if (num == 0 ||
- (errno != EWOULDBLOCK) && (errno != EAGAIN) && (errno != EINTR))
- {
- m_detected = GSOCK_LOST_FLAG;
- m_establishing = false;
-
- /* LOST event: Abort any further processing */
- return (GSOCK_LOST_FLAG & flags);
- }
- }
+ if (m_server && m_stream)
+ {
+ /* This is a TCP server socket that detected a connection.
+ While the INPUT_FLAG is also set, it doesn't matter on
+ this kind of sockets, as we can only Accept() from them. */
+ m_detected |= GSOCK_CONNECTION_FLAG;
}
+ }
- /* Check for writability */
- if (wxFD_ISSET(m_fd, &writefds))
+ /* Check for writability */
+ if (wxFD_ISSET(m_fd, &writefds))
+ {
+ if (m_establishing && !m_server)
{
- if (m_establishing && !m_server)
- {
- int error;
- SOCKOPTLEN_T len = sizeof(error);
-
- m_establishing = false;
-
- getsockopt(m_fd, SOL_SOCKET, SO_ERROR, (char*)&error, &len);
+ int error;
+ SOCKOPTLEN_T len = sizeof(error);
+ m_establishing = false;
+ getsockopt(m_fd, SOL_SOCKET, SO_ERROR, (char*)&error, &len);
- if (error)
- {
- m_detected = GSOCK_LOST_FLAG;
+ if (error)
+ {
+ m_detected = GSOCK_LOST_FLAG;
- /* LOST event: Abort any further processing */
- return (GSOCK_LOST_FLAG & flags);
- }
- else
- {
- result |= GSOCK_CONNECTION_FLAG;
- m_detected |= GSOCK_CONNECTION_FLAG;
- }
+ /* LOST event: Abort any further processing */
+ return (GSOCK_LOST_FLAG & flags);
}
else
{
- result |= GSOCK_OUTPUT_FLAG;
+ m_detected |= GSOCK_CONNECTION_FLAG;
}
}
-
- /* Check for exceptions and errors (is this useful in Unices?) */
- if (wxFD_ISSET(m_fd, &exceptfds))
+ else
{
- m_establishing = false;
- m_detected = GSOCK_LOST_FLAG;
-
- /* LOST event: Abort any further processing */
- return (GSOCK_LOST_FLAG & flags);
+ result |= GSOCK_OUTPUT_FLAG;
}
-
- return (result & flags);
-
- }
- else
- {
- assert(this);
- return flags & m_detected;
}
+
+ return (result | m_detected) & flags;
}
/* Flags */
void GSocket::Enable(GSocketEvent event)
{
- m_detected &= ~(1 << event);
- gs_gui_functions->Install_Callback(this, event);
+ if (m_use_events)
+ {
+ m_detected &= ~(1 << event);
+ GSocketManager::Get()->Install_Callback(this, event);
+ }
}
void GSocket::Disable(GSocketEvent event)
{
- m_detected |= (1 << event);
- gs_gui_functions->Uninstall_Callback(this, event);
+ if (m_use_events)
+ {
+ m_detected |= (1 << event);
+ GSocketManager::Get()->Uninstall_Callback(this, event);
+ }
}
/* _GSocket_Input_Timeout:
int GSocket::Recv_Dgram(char *buffer, int size)
{
- struct sockaddr from;
+ wxSockAddr from;
WX_SOCKLEN_T fromlen = sizeof(from);
int ret;
GSocketError err;
do
{
- ret = recvfrom(m_fd, buffer, size, 0, &from, (WX_SOCKLEN_T *) &fromlen);
+ ret = recvfrom(m_fd, buffer, size, 0, (sockaddr*)&from, (WX_SOCKLEN_T *) &fromlen);
}
while (ret == -1 && errno == EINTR); /* Loop until not interrupted */
}
}
- err = _GAddress_translate_from(m_peer, &from, fromlen);
+ err = _GAddress_translate_from(m_peer, (sockaddr*)&from, fromlen);
if (err != GSOCK_NOERROR)
{
GAddress_destroy(m_peer);
{
CALL_CALLBACK(this, GSOCK_CONNECTION);
}
+ else if (num == 0)
+ {
+ if (m_stream)
+ {
+ /* graceful shutdown */
+ CALL_CALLBACK(this, GSOCK_LOST);
+ Shutdown();
+ }
+ else
+ {
+ /* Empty datagram received */
+ CALL_CALLBACK(this, GSOCK_INPUT);
+ }
+ }
else
{
/* Do not throw a lost event in cases where the socket isn't really lost */
case AF_UNIX:
address->m_family = GSOCK_UNIX;
break;
-#ifdef AF_INET6
+#if wxUSE_IPV6
case AF_INET6:
address->m_family = GSOCK_INET6;
break;
-#endif
+#endif // wxUSE_IPV6
default:
{
address->m_error = GSOCK_INVOP;
return GSOCK_NOERROR;
}
+
+GSocketError GAddress_INET_SetBroadcastAddress(GAddress *address)
+{
+ return GAddress_INET_SetHostAddress(address, INADDR_BROADCAST);
+}
+
GSocketError GAddress_INET_SetAnyAddress(GAddress *address)
{
return GAddress_INET_SetHostAddress(address, INADDR_ANY);
return ntohs(addr->sin_port);
}
+#if wxUSE_IPV6
+/*
+ * -------------------------------------------------------------------------
+ * Internet IPv6 address family
+ * -------------------------------------------------------------------------
+ */
+
+GSocketError _GAddress_Init_INET6(GAddress *address)
+{
+ struct in6_addr any_address = IN6ADDR_ANY_INIT;
+ address->m_len = sizeof(struct sockaddr_in6);
+ address->m_addr = (struct sockaddr *) malloc(address->m_len);
+ if (address->m_addr == NULL)
+ {
+ address->m_error = GSOCK_MEMERR;
+ return GSOCK_MEMERR;
+ }
+ memset(address->m_addr,0,address->m_len);
+
+ address->m_family = GSOCK_INET6;
+ address->m_realfamily = AF_INET6;
+ ((struct sockaddr_in6 *)address->m_addr)->sin6_family = AF_INET6;
+ ((struct sockaddr_in6 *)address->m_addr)->sin6_addr = any_address;
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET6_SetHostName(GAddress *address, const char *hostname)
+{
+ assert(address != NULL);
+ CHECK_ADDRESS(address, INET6);
+
+ addrinfo hints;
+ memset( & hints, 0, sizeof( hints ) );
+ hints.ai_family = AF_INET6;
+ addrinfo * info = 0;
+ if ( getaddrinfo( hostname, "0", & hints, & info ) || ! info )
+ {
+ address->m_error = GSOCK_NOHOST;
+ return GSOCK_NOHOST;
+ }
+
+ memcpy( address->m_addr, info->ai_addr, info->ai_addrlen );
+ freeaddrinfo( info );
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET6_SetAnyAddress(GAddress *address)
+{
+ assert(address != NULL);
+
+ CHECK_ADDRESS(address, INET6);
+
+ struct in6_addr addr;
+ memset( & addr, 0, sizeof( addr ) );
+ return GAddress_INET6_SetHostAddress(address, addr);
+}
+GSocketError GAddress_INET6_SetHostAddress(GAddress *address,
+ struct in6_addr hostaddr)
+{
+ assert(address != NULL);
+
+ CHECK_ADDRESS(address, INET6);
+
+ ((struct sockaddr_in6 *)address->m_addr)->sin6_addr = hostaddr;
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET6_SetPortName(GAddress *address, const char *port,
+ const char *protocol)
+{
+ struct servent *se;
+ struct sockaddr_in6 *addr;
+
+ assert(address != NULL);
+ CHECK_ADDRESS(address, INET6);
+
+ if (!port)
+ {
+ address->m_error = GSOCK_INVPORT;
+ return GSOCK_INVPORT;
+ }
+
+ se = getservbyname(port, protocol);
+ if (!se)
+ {
+ if (isdigit(port[0]))
+ {
+ int port_int;
+
+ port_int = atoi(port);
+ addr = (struct sockaddr_in6 *)address->m_addr;
+ addr->sin6_port = htons((u_short) port_int);
+ return GSOCK_NOERROR;
+ }
+
+ address->m_error = GSOCK_INVPORT;
+ return GSOCK_INVPORT;
+ }
+
+ addr = (struct sockaddr_in6 *)address->m_addr;
+ addr->sin6_port = se->s_port;
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET6_SetPort(GAddress *address, unsigned short port)
+{
+ struct sockaddr_in6 *addr;
+
+ assert(address != NULL);
+ CHECK_ADDRESS(address, INET6);
+
+ addr = (struct sockaddr_in6 *)address->m_addr;
+ addr->sin6_port = htons(port);
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET6_GetHostName(GAddress *address, char *hostname, size_t sbuf)
+{
+ struct hostent *he;
+ char *addr_buf;
+ struct sockaddr_in6 *addr;
+
+ assert(address != NULL);
+ CHECK_ADDRESS(address, INET6);
+
+ addr = (struct sockaddr_in6 *)address->m_addr;
+ addr_buf = (char *)&(addr->sin6_addr);
+
+ he = gethostbyaddr(addr_buf, sizeof(addr->sin6_addr), AF_INET6);
+ if (he == NULL)
+ {
+ address->m_error = GSOCK_NOHOST;
+ return GSOCK_NOHOST;
+ }
+
+ strncpy(hostname, he->h_name, sbuf);
+
+ return GSOCK_NOERROR;
+}
+
+GSocketError GAddress_INET6_GetHostAddress(GAddress *address,struct in6_addr *hostaddr)
+{
+ assert(address != NULL);
+ assert(hostaddr != NULL);
+ CHECK_ADDRESS_RETVAL(address, INET6, GSOCK_INVADDR);
+ *hostaddr = ( (struct sockaddr_in6 *)address->m_addr )->sin6_addr;
+ return GSOCK_NOERROR;
+}
+
+unsigned short GAddress_INET6_GetPort(GAddress *address)
+{
+ assert(address != NULL);
+ CHECK_ADDRESS_RETVAL(address, INET6, 0);
+
+ return ntohs( ((struct sockaddr_in6 *)address->m_addr)->sin6_port );
+}
+
+#endif // wxUSE_IPV6
+
/*
* -------------------------------------------------------------------------
* Unix address family
projects / wxWidgets.git / blobdiff