X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9a7e4a56b699e5072e6f3cab3fec0794e50e274d..dde4740fe1dddbb2738a0afd054f493cb0dd67d1:/src/unix/gsocket.cpp diff --git a/src/unix/gsocket.cpp b/src/unix/gsocket.cpp index 5225353a7d..5ff4d21442 100644 --- a/src/unix/gsocket.cpp +++ b/src/unix/gsocket.cpp @@ -87,6 +87,10 @@ int _System bsdselect(int, int _System soclose(int); # endif #endif +#ifdef __EMX__ +#include +#endif + #include #include #include @@ -97,6 +101,9 @@ int _System soclose(int); #ifdef sgi # include #endif +#ifdef _AIX +# include +#endif #include #ifndef SOCKLEN_T @@ -115,6 +122,10 @@ int _System soclose(int); #endif /* SOCKLEN_T */ +#ifndef SOCKOPTLEN_T +#define SOCKOPTLEN_T SOCKLEN_T +#endif + /* * MSW defines this, Unices don't. */ @@ -145,6 +156,15 @@ int _System soclose(int); signal(SIGPIPE, old_handler); \ } +/* If a SIGPIPE is issued by a socket call on a remotely closed socket, + the program will "crash" unless it explicitly handles the SIGPIPE. + By using MSG_NOSIGNAL, the SIGPIPE is suppressed. Later, we will + use SO_NOSIGPIPE (if available), the BSD equivalent. */ +#ifdef MSG_NOSIGNAL +# define GSOCKET_MSG_NOSIGNAL MSG_NOSIGNAL +#else /* MSG_NOSIGNAL not available (FreeBSD including OS X) */ +# define GSOCKET_MSG_NOSIGNAL 0 +#endif /* MSG_NOSIGNAL */ #ifndef __GSOCKET_STANDALONE__ # include "wx/unix/gsockunx.h" @@ -164,7 +184,7 @@ int _System soclose(int); /* Table of GUI-related functions. We must call them indirectly because * of wxBase and GUI separation: */ -static struct GSocketGUIFunctionsTable *gs_gui_functions; +static GSocketGUIFunctionsTable *gs_gui_functions; class GSocketGUIFunctionsTableNull: public GSocketGUIFunctionsTable { @@ -200,7 +220,7 @@ void GSocketGUIFunctionsTableNull::Disable_Events(GSocket *socket) {} /* Global initialisers */ -void GSocket_SetGUIFunctions(struct GSocketGUIFunctionsTable *guifunc) +void GSocket_SetGUIFunctions(GSocketGUIFunctionsTable *guifunc) { gs_gui_functions = guifunc; } @@ -209,7 +229,7 @@ int GSocket_Init(void) { if (!gs_gui_functions) { - static class GSocketGUIFunctionsTableNull table; + static GSocketGUIFunctionsTableNull table; gs_gui_functions = &table; } if ( !gs_gui_functions->OnInit() ) @@ -240,13 +260,14 @@ GSocket::GSocket() m_local = NULL; m_peer = NULL; m_error = GSOCK_NOERROR; - m_server = FALSE; - m_stream = TRUE; + m_server = false; + m_stream = true; m_gui_dependent = NULL; - m_non_blocking = FALSE; + m_non_blocking = false; + m_reusable = false; m_timeout = 10*60*1000; /* 10 minutes * 60 sec * 1000 millisec */ - m_establishing = FALSE; + m_establishing = false; assert(gs_gui_functions); /* Per-socket GUI-specific initialization */ @@ -456,8 +477,8 @@ GSocketError GSocket::SetServer() } /* Initialize all fields */ - m_stream = TRUE; - m_server = TRUE; + m_stream = true; + m_server = true; /* Create the socket */ m_fd = socket(m_local->m_realfamily, SOCK_STREAM, 0); @@ -467,11 +488,13 @@ GSocketError GSocket::SetServer() m_error = GSOCK_IOERR; return GSOCK_IOERR; } -#if defined(__EMX__) || defined(__VISAGECPP__) - ioctl(m_fd, FIONBIO, (char*)&arg, sizeof(arg)); -#else - ioctl(m_fd, FIONBIO, &arg); + + /* 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)); #endif + + ioctl(m_fd, FIONBIO, &arg); gs_gui_functions->Enable_Events(this); /* allow a socket to re-bind if the socket is in the TIME_WAIT @@ -520,9 +543,6 @@ GSocket *GSocket::WaitConnection() assert(this); - /* Reenable CONNECTION events */ - Enable(GSOCK_CONNECTION); - /* If the socket has already been created, we exit immediately */ if (m_fd == INVALID_SOCKET || !m_server) { @@ -549,6 +569,9 @@ GSocket *GSocket::WaitConnection() connection->m_fd = accept(m_fd, &from, (SOCKLEN_T *) &fromlen); + /* Reenable CONNECTION events */ + Enable(GSOCK_CONNECTION); + if (connection->m_fd == INVALID_SOCKET) { if (errno == EWOULDBLOCK) @@ -561,8 +584,8 @@ GSocket *GSocket::WaitConnection() } /* Initialize all fields */ - connection->m_server = FALSE; - connection->m_stream = TRUE; + connection->m_server = false; + connection->m_stream = true; /* Setup the peer address field */ connection->m_peer = GAddress_new(); @@ -575,7 +598,6 @@ GSocket *GSocket::WaitConnection() err = _GAddress_translate_from(connection->m_peer, &from, fromlen); if (err != GSOCK_NOERROR) { - GAddress_destroy(connection->m_peer); delete connection; m_error = err; return NULL; @@ -590,14 +612,14 @@ GSocket *GSocket::WaitConnection() return connection; } -int GSocket::SetReusable() +bool GSocket::SetReusable() { /* socket must not be null, and must not be in use/already bound */ if (this && m_fd == INVALID_SOCKET) { - m_reusable = TRUE; - return TRUE; + m_reusable = true; + return true; } - return FALSE; + return false; } /* Client specific parts */ @@ -649,8 +671,8 @@ GSocketError GSocket::Connect(GSocketStream stream) /* Streamed or dgram socket? */ m_stream = (stream == GSOCK_STREAMED); - m_server = FALSE; - m_establishing = FALSE; + m_server = false; + m_establishing = false; /* Create the socket */ m_fd = socket(m_peer->m_realfamily, @@ -661,16 +683,28 @@ GSocketError GSocket::Connect(GSocketStream stream) m_error = GSOCK_IOERR; return GSOCK_IOERR; } + + /* 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)); +#endif + #if defined(__EMX__) || defined(__VISAGECPP__) ioctl(m_fd, FIONBIO, (char*)&arg, sizeof(arg)); #else ioctl(m_fd, FIONBIO, &arg); #endif - gs_gui_functions->Enable_Events(this); /* Connect it to the peer address, with a timeout (see below) */ ret = connect(m_fd, m_peer->m_addr, m_peer->m_len); + /* We only call Enable_Events if we know e aren't shutting down the socket */ + + if (m_non_blocking) + { + gs_gui_functions->Enable_Events(this); + } + if (ret == -1) { err = errno; @@ -691,9 +725,11 @@ GSocketError GSocket::Connect(GSocketStream stream) else { int error; - SOCKLEN_T len = sizeof(error); + SOCKOPTLEN_T len = sizeof(error); + + getsockopt(m_fd, SOL_SOCKET, SO_ERROR, (char*) &error, &len); - getsockopt(m_fd, SOL_SOCKET, SO_ERROR, (void*) &error, &len); + gs_gui_functions->Enable_Events(this); if (!error) return GSOCK_NOERROR; @@ -708,7 +744,7 @@ GSocketError GSocket::Connect(GSocketStream stream) */ if ((err == EINPROGRESS) && (m_non_blocking)) { - m_establishing = TRUE; + m_establishing = true; m_error = GSOCK_WOULDBLOCK; return GSOCK_WOULDBLOCK; } @@ -756,8 +792,8 @@ GSocketError GSocket::SetNonOriented() } /* Initialize all fields */ - m_stream = FALSE; - m_server = FALSE; + m_stream = false; + m_server = false; /* Create the socket */ m_fd = socket(m_local->m_realfamily, SOCK_DGRAM, 0); @@ -822,7 +858,7 @@ int GSocket::Read(char *buffer, int size) if (ret == -1) { - if (errno == EWOULDBLOCK) + if ((errno == EWOULDBLOCK) || (errno == EAGAIN)) m_error = GSOCK_WOULDBLOCK; else m_error = GSOCK_IOERR; @@ -866,7 +902,7 @@ int GSocket::Write(const char *buffer, int size) if (ret == -1) { - if (errno == EWOULDBLOCK) + if ((errno == EWOULDBLOCK) || (errno == EAGAIN)) { m_error = GSOCK_WOULDBLOCK; GSocket_Debug(( "GSocket_Write error WOULDBLOCK\n" )); @@ -913,7 +949,7 @@ GSocketEventFlags GSocket::Select(GSocketEventFlags flags) /* Do not use a static struct, Linux can garble it */ tv.tv_sec = m_timeout / 1000; - tv.tv_usec = (m_timeout % 1000) / 1000; + tv.tv_usec = (m_timeout % 1000) * 1000; FD_ZERO(&readfds); FD_ZERO(&writefds); @@ -931,7 +967,7 @@ GSocketEventFlags GSocket::Select(GSocketEventFlags flags) */ if ((m_detected & GSOCK_LOST_FLAG) != 0) { - m_establishing = FALSE; + m_establishing = false; return (GSOCK_LOST_FLAG & flags); } @@ -948,7 +984,9 @@ GSocketEventFlags GSocket::Select(GSocketEventFlags flags) { char c; - if (recv(m_fd, &c, 1, MSG_PEEK) > 0) + int num = recv(m_fd, &c, 1, MSG_PEEK | GSOCKET_MSG_NOSIGNAL); + + if (num > 0) { result |= GSOCK_INPUT_FLAG; } @@ -959,10 +997,10 @@ GSocketEventFlags GSocket::Select(GSocketEventFlags flags) result |= GSOCK_CONNECTION_FLAG; m_detected |= GSOCK_CONNECTION_FLAG; } - else + else if ((errno != EWOULDBLOCK) && (errno != EAGAIN) && (errno != EINTR)) { m_detected = GSOCK_LOST_FLAG; - m_establishing = FALSE; + m_establishing = false; /* LOST event: Abort any further processing */ return (GSOCK_LOST_FLAG & flags); @@ -976,11 +1014,11 @@ GSocketEventFlags GSocket::Select(GSocketEventFlags flags) if (m_establishing && !m_server) { int error; - SOCKLEN_T len = sizeof(error); + SOCKOPTLEN_T len = sizeof(error); - m_establishing = FALSE; + m_establishing = false; - getsockopt(m_fd, SOL_SOCKET, SO_ERROR, (void*)&error, &len); + getsockopt(m_fd, SOL_SOCKET, SO_ERROR, (char*)&error, &len); if (error) { @@ -1004,7 +1042,7 @@ GSocketEventFlags GSocket::Select(GSocketEventFlags flags) /* Check for exceptions and errors (is this useful in Unices?) */ if (FD_ISSET(m_fd, &exceptfds)) { - m_establishing = FALSE; + m_establishing = false; m_detected = GSOCK_LOST_FLAG; /* LOST event: Abort any further processing */ @@ -1029,7 +1067,7 @@ GSocketEventFlags GSocket::Select(GSocketEventFlags flags) * Sets the socket to non-blocking mode. All IO calls will return * immediately. */ -void GSocket::SetNonBlocking(int non_block) +void GSocket::SetNonBlocking(bool non_block) { assert(this); @@ -1131,7 +1169,7 @@ void GSocket::UnsetCallback(GSocketEventFlags flags) GSocketError GSocket::GetSockOpt(int level, int optname, void *optval, int *optlen) { - if (getsockopt(m_fd, level, optname, optval, (SOCKLEN_T*)optlen) == 0) + if (getsockopt(m_fd, level, optname, (char*)optval, (SOCKOPTLEN_T*)optlen) == 0) { return GSOCK_NOERROR; } @@ -1141,7 +1179,7 @@ GSocketError GSocket::GetSockOpt(int level, int optname, GSocketError GSocket::SetSockOpt(int level, int optname, const void *optval, int optlen) { - if (setsockopt(m_fd, level, optname, optval, optlen) == 0) + if (setsockopt(m_fd, level, optname, (const char*)optval, optlen) == 0) { return GSOCK_NOERROR; } @@ -1260,7 +1298,12 @@ GSocketError GSocket::Output_Timeout() int GSocket::Recv_Stream(char *buffer, int size) { - return recv(m_fd, buffer, size, 0); + int ret; + do + { + ret = recv(m_fd, buffer, size, GSOCKET_MSG_NOSIGNAL); + } while (ret == -1 && errno == EINTR); /* Loop until not interrupted */ + return ret; } int GSocket::Recv_Dgram(char *buffer, int size) @@ -1272,7 +1315,10 @@ int GSocket::Recv_Dgram(char *buffer, int size) fromlen = sizeof(from); - ret = recvfrom(m_fd, buffer, size, 0, &from, (SOCKLEN_T *) &fromlen); + do + { + ret = recvfrom(m_fd, buffer, size, 0, &from, (SOCKLEN_T *) &fromlen); + } while (ret == -1 && errno == EINTR); /* Loop until not interrupted */ if (ret == -1) return -1; @@ -1304,11 +1350,14 @@ int GSocket::Send_Stream(const char *buffer, int size) int ret; #ifndef __VISAGECPP__ - MASK_SIGNAL(); - ret = send(m_fd, buffer, size, 0); + MASK_SIGNAL(); +#endif + do + { + ret = send(m_fd, (char *)buffer, size, GSOCKET_MSG_NOSIGNAL); + } while (ret == -1 && errno == EINTR); /* Loop until not interrupted */ +#ifndef __VISAGECPP__ UNMASK_SIGNAL(); -#else - ret = send(m_fd, (char *)buffer, size, 0); #endif return ret; @@ -1335,10 +1384,13 @@ int GSocket::Send_Dgram(const char *buffer, int size) #ifndef __VISAGECPP__ MASK_SIGNAL(); - ret = sendto(m_fd, buffer, size, 0, addr, len); +#endif + do + { + ret = sendto(m_fd, (char *)buffer, size, 0, addr, len); + } while (ret == -1 && errno == EINTR); /* Loop until not interrupted */ +#ifndef __VISAGECPP__ UNMASK_SIGNAL(); -#else - ret = sendto(m_fd, (char *)buffer, size, 0, addr, len); #endif /* Frees memory allocated from _GAddress_translate_to */ @@ -1351,19 +1403,27 @@ void GSocket::Detected_Read() { char c; + /* Safeguard against straggling call to Detected_Read */ + if (m_fd == INVALID_SOCKET) + { + return; + } + /* 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; + m_establishing = false; CALL_CALLBACK(this, GSOCK_LOST); Shutdown(); return; } - if (recv(m_fd, &c, 1, MSG_PEEK) > 0) + int num = recv(m_fd, &c, 1, MSG_PEEK | GSOCKET_MSG_NOSIGNAL); + + if (num > 0) { CALL_CALLBACK(this, GSOCK_INPUT); } @@ -1375,8 +1435,16 @@ void GSocket::Detected_Read() } else { - CALL_CALLBACK(this, GSOCK_LOST); - Shutdown(); + /* Do not throw a lost event in cases where the socket isn't really lost */ + if ((errno == EWOULDBLOCK) || (errno == EAGAIN) || (errno == EINTR)) + { + CALL_CALLBACK(this, GSOCK_INPUT); + } + else + { + CALL_CALLBACK(this, GSOCK_LOST); + Shutdown(); + } } } } @@ -1388,7 +1456,7 @@ void GSocket::Detected_Write() */ if ((m_detected & GSOCK_LOST_FLAG) != 0) { - m_establishing = FALSE; + m_establishing = false; CALL_CALLBACK(this, GSOCK_LOST); Shutdown(); @@ -1398,11 +1466,11 @@ void GSocket::Detected_Write() if (m_establishing && !m_server) { int error; - SOCKLEN_T len = sizeof(error); + SOCKOPTLEN_T len = sizeof(error); - m_establishing = FALSE; + m_establishing = false; - getsockopt(m_fd, SOL_SOCKET, SO_ERROR, (void*)&error, &len); + getsockopt(m_fd, SOL_SOCKET, SO_ERROR, (char*)&error, &len); if (error) { @@ -1637,7 +1705,7 @@ GSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname) if (inet_aton(hostname, addr) == 0) { #elif defined(HAVE_INET_ADDR) - if ( (addr->s_addr = inet_addr(hostname)) == -1 ) + if ( (addr->s_addr = inet_addr(hostname)) == (unsigned)-1 ) { #else /* Use gethostbyname by default */ @@ -1698,7 +1766,11 @@ GSocketError GAddress_INET_SetPortName(GAddress *address, const char *port, return GSOCK_INVPORT; } +#if defined(__WXPM__) && defined(__EMX__) + se = getservbyname(port, (char*)protocol); +#else se = getservbyname(port, protocol); +#endif if (!se) { /* the cast to int suppresses compiler warnings about subscript having the