X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f6bcfd974ef26faf6f91a62cac09827e09463fd1..3a5bcc4db0851bf8cd3063917511b0b17c7f9679:/src/unix/gsocket.c diff --git a/src/unix/gsocket.c b/src/unix/gsocket.c index 3aa289c473..16eae12743 100644 --- a/src/unix/gsocket.c +++ b/src/unix/gsocket.c @@ -3,7 +3,8 @@ * Name: gsocket.c * Authors: Guilhem Lavaux, * Guillermo Rodriguez Garcia (maintainer) - * Purpose: GSocket main Unix file + * Purpose: GSocket main Unix and OS/2 file + * Licence: The wxWindows licence * CVSID: $Id$ * ------------------------------------------------------------------------- */ @@ -16,10 +17,23 @@ #include "wx/setup.h" #endif +#if defined(__VISAGECPP__) +/* Seems to be needed by Visual Age C++, though I don't see how it manages + to not break on including a C++ header into a plain C source file */ +#include "wx/defs.h" +#define BSD_SELECT /* use Berkley Sockets select */ +#endif + #if wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) #include #include +#ifdef __VISAGECPP__ +#include +#include +#include +#include +#endif #include #include @@ -36,12 +50,42 @@ struct sockaddr_un #include #endif +#ifndef __VISAGECPP__ #include #include #include #include #include #include +#else +#include +# if __IBMCPP__ < 400 +#include +#include +#include +#include +#include + +#define EBADF SOCEBADF + +# ifdef min +# undef min +# endif +# else +#include +#include +#include + +#define close(a) soclose(a) +#define select(a,b,c,d,e) bsdselect(a,b,c,d,e) +int _System bsdselect(int, + struct fd_set *, + struct fd_set *, + struct fd_set *, + struct timeval *); +int _System soclose(int); +# endif +#endif #include #include #include @@ -77,6 +121,11 @@ struct sockaddr_un #define INVALID_SOCKET -1 #endif +/* UnixWare reportedly needs this for FIONBIO definition */ +#ifdef __UNIXWARE__ +#include +#endif + /* * INADDR_BROADCAST is identical to INADDR_NONE which is not defined * on all systems. INADDR_BROADCAST should be fine to indicate an error. @@ -104,16 +153,6 @@ struct sockaddr_un # include "gsocket.h" #endif /* __GSOCKET_STANDALONE__ */ -/* redefine some GUI-only functions to do nothing in console mode */ -#if defined(wxUSE_GUI) && !wxUSE_GUI -# define _GSocket_GUI_Init(socket) (1) -# define _GSocket_GUI_Destroy(socket) -# define _GSocket_Enable_Events(socket) -# define _GSocket_Disable_Events(socket) -# define _GSocket_Install_Callback(socket, event) -# define _GSocket_Uninstall_Callback(socket, event) -#endif /* wxUSE_GUI */ - /* debugging helpers */ #ifdef __GSOCKET_DEBUG__ # define GSocket_Debug(args) printf args @@ -121,15 +160,60 @@ struct sockaddr_un # define GSocket_Debug(args) #endif /* __GSOCKET_DEBUG__ */ +/* Table of GUI-related functions. We must call them indirectly because + * of wxBase and GUI separation: */ + +static struct GSocketGUIFunctionsTable *gs_gui_functions; + +#define USE_GUI() (gs_gui_functions != NULL) + +/* Define macros to simplify indirection: */ +#define _GSocket_GUI_Init() \ + if (gs_gui_functions) gs_gui_functions->GUI_Init() +#define _GSocket_GUI_Cleanup() \ + if (gs_gui_functions) gs_gui_functions->GUI_Cleanup() +#define _GSocket_GUI_Init_Socket(socket) \ + (gs_gui_functions ? gs_gui_functions->GUI_Init_Socket(socket) : 1) +#define _GSocket_GUI_Destroy_Socket(socket) \ + if (gs_gui_functions) gs_gui_functions->GUI_Destroy_Socket(socket) +#define _GSocket_Enable_Events(socket) \ + if (gs_gui_functions) gs_gui_functions->Enable_Events(socket) +#define _GSocket_Disable_Events(socket) \ + if (gs_gui_functions) gs_gui_functions->Disable_Events(socket) +#define _GSocket_Install_Callback(socket, event) \ + if (gs_gui_functions) gs_gui_functions->Install_Callback(socket, event) +#define _GSocket_Uninstall_Callback(socket, event) \ + if (gs_gui_functions) gs_gui_functions->Uninstall_Callback(socket, event) + +static struct GSocketBaseFunctionsTable gs_base_functions = +{ + _GSocket_Detected_Read, + _GSocket_Detected_Write +}; + /* Global initialisers */ +void GSocket_SetGUIFunctions(struct GSocketGUIFunctionsTable *guifunc) +{ + gs_gui_functions = guifunc; +} + int GSocket_Init(void) { + if (gs_gui_functions) + { + if ( !gs_gui_functions->GUI_Init() ) + return 0; + } return 1; } void GSocket_Cleanup(void) { + if (gs_gui_functions) + { + gs_gui_functions->GUI_Cleanup(); + } } /* Constructors / Destructors for GSocket */ @@ -161,8 +245,10 @@ GSocket *GSocket_new(void) /* 10 minutes * 60 sec * 1000 millisec */ socket->m_establishing = FALSE; + socket->m_functions = &gs_base_functions; + /* Per-socket GUI-specific initialization */ - success = _GSocket_GUI_Init(socket); + success = _GSocket_GUI_Init_Socket(socket); if (!success) { free(socket); @@ -172,6 +258,16 @@ GSocket *GSocket_new(void) return socket; } +void GSocket_close(GSocket *socket) +{ + _GSocket_Disable_Events(socket); + /* gsockosx.c calls CFSocketInvalidate which closes the socket for us */ +#if !(defined(__DARWIN__) && (defined(__WXMAC__) || defined(__WXCOCOA__))) + close(socket->m_fd); +#endif + socket->m_fd = INVALID_SOCKET; +} + void GSocket_destroy(GSocket *socket) { assert(socket != NULL); @@ -181,7 +277,7 @@ void GSocket_destroy(GSocket *socket) GSocket_Shutdown(socket); /* Per-socket GUI-specific cleanup */ - _GSocket_GUI_Destroy(socket); + _GSocket_GUI_Destroy_Socket(socket); /* Destroy private addresses */ if (socket->m_local) @@ -208,8 +304,7 @@ void GSocket_Shutdown(GSocket *socket) if (socket->m_fd != INVALID_SOCKET) { shutdown(socket->m_fd, 2); - close(socket->m_fd); - socket->m_fd = INVALID_SOCKET; + GSocket_close(socket); } /* Disable GUI callbacks */ @@ -217,7 +312,6 @@ void GSocket_Shutdown(GSocket *socket) socket->m_cbacks[evt] = NULL; socket->m_detected = GSOCK_LOST_FLAG; - _GSocket_Disable_Events(socket); } /* Address handling */ @@ -382,10 +476,18 @@ GSocketError GSocket_SetServer(GSocket *sck) sck->m_error = GSOCK_IOERR; return GSOCK_IOERR; } - +#if defined(__EMX__) || defined(__VISAGECPP__) + ioctl(sck->m_fd, FIONBIO, (char*)&arg, sizeof(arg)); +#else ioctl(sck->m_fd, FIONBIO, &arg); +#endif _GSocket_Enable_Events(sck); + /* allow a socket to re-bind if the socket is in the TIME_WAIT + state after being previously closed. + */ + setsockopt(sck->m_fd, SOL_SOCKET, SO_REUSEADDR, (const char*)&arg, sizeof(u_long)); + /* Bind to the local address, * retrieve the actual address bound, * and listen up to 5 connections. @@ -396,8 +498,7 @@ GSocketError GSocket_SetServer(GSocket *sck) (SOCKLEN_T *) &sck->m_local->m_len) != 0) || (listen(sck->m_fd, 5) != 0)) { - close(sck->m_fd); - sck->m_fd = INVALID_SOCKET; + GSocket_close(sck); sck->m_error = GSOCK_IOERR; return GSOCK_IOERR; } @@ -488,8 +589,11 @@ GSocket *GSocket_WaitConnection(GSocket *socket) socket->m_error = err; return NULL; } - +#if defined(__EMX__) || defined(__VISAGECPP__) + ioctl(connection->m_fd, FIONBIO, (char*)&arg, sizeof(arg)); +#else ioctl(connection->m_fd, FIONBIO, &arg); +#endif _GSocket_Enable_Events(connection); return connection; @@ -557,8 +661,11 @@ GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream) sck->m_error = GSOCK_IOERR; return GSOCK_IOERR; } - +#if defined(__EMX__) || defined(__VISAGECPP__) + ioctl(sck->m_fd, FIONBIO, (char*)&arg, sizeof(arg)); +#else ioctl(sck->m_fd, FIONBIO, &arg); +#endif _GSocket_Enable_Events(sck); /* Connect it to the peer address, with a timeout (see below) */ @@ -577,8 +684,7 @@ GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream) { if (_GSocket_Output_Timeout(sck) == GSOCK_TIMEDOUT) { - close(sck->m_fd); - sck->m_fd = INVALID_SOCKET; + GSocket_close(sck); /* sck->m_error is set in _GSocket_Output_Timeout */ return GSOCK_TIMEDOUT; } @@ -610,8 +716,7 @@ GSocketError GSocket_Connect(GSocket *sck, GSocketStream stream) /* If connect failed with an error other than EINPROGRESS, * then the call to GSocket_Connect has failed. */ - close(sck->m_fd); - sck->m_fd = INVALID_SOCKET; + GSocket_close(sck); sck->m_error = GSOCK_IOERR; return GSOCK_IOERR; } @@ -663,8 +768,11 @@ GSocketError GSocket_SetNonOriented(GSocket *sck) sck->m_error = GSOCK_IOERR; return GSOCK_IOERR; } - +#if defined(__EMX__) || defined(__VISAGECPP__) + ioctl(sck->m_fd, FIONBIO, (char*)&arg, sizeof(arg)); +#else ioctl(sck->m_fd, FIONBIO, &arg); +#endif _GSocket_Enable_Events(sck); /* Bind to the local address, @@ -675,8 +783,7 @@ GSocketError GSocket_SetNonOriented(GSocket *sck) sck->m_local->m_addr, (SOCKLEN_T *) &sck->m_local->m_len) != 0)) { - close(sck->m_fd); - sck->m_fd = INVALID_SOCKET; + GSocket_close(sck); sck->m_error = GSOCK_IOERR; return GSOCK_IOERR; } @@ -693,8 +800,11 @@ int GSocket_Read(GSocket *socket, char *buffer, int size) assert(socket != NULL); + /* When using CFSocket we MUST NOT reenable events until we finish reading */ +#ifndef __DARWIN__ /* Reenable INPUT events */ _GSocket_Enable(socket, GSOCK_INPUT); +#endif if (socket->m_fd == INVALID_SOCKET || socket->m_server) { @@ -720,6 +830,11 @@ int GSocket_Read(GSocket *socket, char *buffer, int size) socket->m_error = GSOCK_IOERR; } +#ifdef __DARWIN__ + /* Reenable INPUT events */ + _GSocket_Enable(socket, GSOCK_INPUT); +#endif + return ret; } @@ -789,104 +904,127 @@ int GSocket_Write(GSocket *socket, const char *buffer, int size) */ GSocketEventFlags GSocket_Select(GSocket *socket, GSocketEventFlags flags) { -#if defined(wxUSE_GUI) && !wxUSE_GUI + if (!USE_GUI()) + { - GSocketEventFlags result = 0; - fd_set readfds; - fd_set writefds; - fd_set exceptfds; - struct timeval tv; + GSocketEventFlags result = 0; + fd_set readfds; + fd_set writefds; + fd_set exceptfds; + struct timeval tv; - /* Do not use a static struct, Linux can garble it */ - tv.tv_sec = 0; - tv.tv_usec = 0; + /* Do not use a static struct, Linux can garble it */ + tv.tv_sec = socket->m_timeout / 1000; + tv.tv_usec = (socket->m_timeout % 1000) / 1000; - assert(socket != NULL); + assert(socket != NULL); - FD_ZERO(&readfds); - FD_ZERO(&writefds); - FD_ZERO(&exceptfds); - FD_SET(socket->m_fd, &readfds); - FD_SET(socket->m_fd, &writefds); - FD_SET(socket->m_fd, &exceptfds); + FD_ZERO(&readfds); + FD_ZERO(&writefds); + FD_ZERO(&exceptfds); + FD_SET(socket->m_fd, &readfds); + if (flags & GSOCK_OUTPUT_FLAG) + FD_SET(socket->m_fd, &writefds); + FD_SET(socket->m_fd, &exceptfds); - /* Check known state first */ - result |= (GSOCK_CONNECTION_FLAG & socket->m_detected & flags); - result |= (GSOCK_LOST_FLAG & socket->m_detected & flags); + /* Check 'sticky' CONNECTION flag first */ + result |= (GSOCK_CONNECTION_FLAG & socket->m_detected); - /* Try select now */ - if (select(socket->m_fd + 1, &readfds, &writefds, &exceptfds, &tv) <= 0) - return result; + /* If we have already detected a LOST event, then don't try + * to do any further processing. + */ + if ((socket->m_detected & GSOCK_LOST_FLAG) != 0) + { + socket->m_establishing = FALSE; - /* Check for readability */ - if (FD_ISSET(socket->m_fd, &readfds)) - { - char c; + return (GSOCK_LOST_FLAG & flags); + } - if (recv(socket->m_fd, &c, 1, MSG_PEEK) > 0) + /* Try select now */ + if (select(socket->m_fd + 1, &readfds, &writefds, &exceptfds, &tv) <= 0) { - result |= (GSOCK_INPUT_FLAG & flags); + /* What to do here? */ + return (result & flags); } - else + + /* Check for readability */ + if (FD_ISSET(socket->m_fd, &readfds)) { - if (socket->m_server && socket->m_stream) + char c; + + if (recv(socket->m_fd, &c, 1, MSG_PEEK) > 0) { - result |= (GSOCK_CONNECTION_FLAG & flags); - socket->m_detected |= GSOCK_CONNECTION_FLAG; + result |= GSOCK_INPUT_FLAG; } else { - result |= (GSOCK_LOST_FLAG & flags); - socket->m_detected = GSOCK_LOST_FLAG; + if (socket->m_server && socket->m_stream) + { + result |= GSOCK_CONNECTION_FLAG; + socket->m_detected |= GSOCK_CONNECTION_FLAG; + } + else + { + socket->m_detected = GSOCK_LOST_FLAG; + socket->m_establishing = FALSE; + + /* LOST event: Abort any further processing */ + return (GSOCK_LOST_FLAG & flags); + } } } - } - /* Check for writability */ - if (FD_ISSET(socket->m_fd, &writefds)) - { - if (socket->m_establishing && !socket->m_server) + /* Check for writability */ + if (FD_ISSET(socket->m_fd, &writefds)) { - int error; - SOCKLEN_T len = sizeof(error); + if (socket->m_establishing && !socket->m_server) + { + int error; + SOCKLEN_T len = sizeof(error); - socket->m_establishing = FALSE; + socket->m_establishing = FALSE; - getsockopt(socket->m_fd, SOL_SOCKET, SO_ERROR, (void*)&error, &len); + getsockopt(socket->m_fd, SOL_SOCKET, SO_ERROR, (void*)&error, &len); - if (error) - { - result |= (GSOCK_LOST_FLAG & flags); - socket->m_detected = GSOCK_LOST_FLAG; + if (error) + { + socket->m_detected = GSOCK_LOST_FLAG; + + /* LOST event: Abort any further processing */ + return (GSOCK_LOST_FLAG & flags); + } + else + { + result |= GSOCK_CONNECTION_FLAG; + socket->m_detected |= GSOCK_CONNECTION_FLAG; + } } else { - result |= (GSOCK_CONNECTION_FLAG & flags); - socket->m_detected |= GSOCK_CONNECTION_FLAG; + result |= GSOCK_OUTPUT_FLAG; } } - else + + /* Check for exceptions and errors (is this useful in Unices?) */ + if (FD_ISSET(socket->m_fd, &exceptfds)) { - result |= (GSOCK_OUTPUT_FLAG & flags); - } - } + socket->m_establishing = FALSE; + socket->m_detected = GSOCK_LOST_FLAG; - /* Check for exceptions and errors (is this useful in Unices?) */ - if (FD_ISSET(socket->m_fd, &exceptfds)) - { - result |= (GSOCK_LOST_FLAG & flags); - socket->m_establishing = FALSE; - socket->m_detected = GSOCK_LOST_FLAG; - } + /* LOST event: Abort any further processing */ + return (GSOCK_LOST_FLAG & flags); + } - return result; + return (result & flags); -#else + } + else + { - assert(socket != NULL); - return flags & socket->m_detected; + assert(socket != NULL); + return flags & socket->m_detected; -#endif /* !wxUSE_GUI */ + } } /* Flags */ @@ -1042,10 +1180,10 @@ GSocketError _GSocket_Input_Timeout(GSocket *socket) if (ret == -1) { GSocket_Debug(( "GSocket_Input_Timeout, select returned -1\n" )); - if (errno == EBADF) GSocket_Debug(( "Invalid file descriptor\n" )); - if (errno == EINTR) GSocket_Debug(( "A non blocked signal was caught\n" )); - if (errno == EINVAL) GSocket_Debug(( "The highest number descriptor is negative\n" )); - if (errno == ENOMEM) GSocket_Debug(( "Not enough memory\n" )); + if (errno == EBADF) { GSocket_Debug(( "Invalid file descriptor\n" )); } + if (errno == EINTR) { GSocket_Debug(( "A non blocked signal was caught\n" )); } + if (errno == EINVAL) { GSocket_Debug(( "The highest number descriptor is negative\n" )); } + if (errno == ENOMEM) { GSocket_Debug(( "Not enough memory\n" )); } socket->m_error = GSOCK_TIMEDOUT; return GSOCK_TIMEDOUT; } @@ -1083,17 +1221,19 @@ GSocketError _GSocket_Output_Timeout(GSocket *socket) if (ret == -1) { GSocket_Debug(( "GSocket_Output_Timeout, select returned -1\n" )); - if (errno == EBADF) GSocket_Debug(( "Invalid file descriptor\n" )); - if (errno == EINTR) GSocket_Debug(( "A non blocked signal was caught\n" )); - if (errno == EINVAL) GSocket_Debug(( "The highest number descriptor is negative\n" )); - if (errno == ENOMEM) GSocket_Debug(( "Not enough memory\n" )); + if (errno == EBADF) { GSocket_Debug(( "Invalid file descriptor\n" )); } + if (errno == EINTR) { GSocket_Debug(( "A non blocked signal was caught\n" )); } + if (errno == EINVAL) { GSocket_Debug(( "The highest number descriptor is negative\n" )); } + if (errno == ENOMEM) { GSocket_Debug(( "Not enough memory\n" )); } socket->m_error = GSOCK_TIMEDOUT; return GSOCK_TIMEDOUT; } - if ( ! FD_ISSET(socket->m_fd, &writefds) ) - GSocket_Debug(( "GSocket_Output_Timeout is buggy!\n" )); - else - GSocket_Debug(( "GSocket_Output_Timeout seems correct\n" )); + if ( ! FD_ISSET(socket->m_fd, &writefds) ) { + GSocket_Debug(( "GSocket_Output_Timeout is buggy!\n" )); + } + else { + GSocket_Debug(( "GSocket_Output_Timeout seems correct\n" )); + } } else { @@ -1148,9 +1288,13 @@ int _GSocket_Send_Stream(GSocket *socket, const char *buffer, int size) { int ret; +#ifndef __VISAGECPP__ MASK_SIGNAL(); ret = send(socket->m_fd, buffer, size, 0); UNMASK_SIGNAL(); +#else + ret = send(socket->m_fd, (char *)buffer, size, 0); +#endif return ret; } @@ -1174,9 +1318,13 @@ int _GSocket_Send_Dgram(GSocket *socket, const char *buffer, int size) return -1; } +#ifndef __VISAGECPP__ MASK_SIGNAL(); ret = sendto(socket->m_fd, buffer, size, 0, addr, len); UNMASK_SIGNAL(); +#else + ret = sendto(socket->m_fd, (char *)buffer, size, 0, addr, len); +#endif /* Frees memory allocated from _GAddress_translate_to */ free(addr); @@ -1188,6 +1336,18 @@ void _GSocket_Detected_Read(GSocket *socket) { char c; + /* If we have already detected a LOST event, then don't try + * to do any further processing. + */ + if ((socket->m_detected & GSOCK_LOST_FLAG) != 0) + { + socket->m_establishing = FALSE; + + CALL_CALLBACK(socket, GSOCK_LOST); + GSocket_Shutdown(socket); + return; + } + if (recv(socket->m_fd, &c, 1, MSG_PEEK) > 0) { CALL_CALLBACK(socket, GSOCK_INPUT); @@ -1201,12 +1361,25 @@ void _GSocket_Detected_Read(GSocket *socket) else { CALL_CALLBACK(socket, GSOCK_LOST); + GSocket_Shutdown(socket); } } } void _GSocket_Detected_Write(GSocket *socket) { + /* If we have already detected a LOST event, then don't try + * to do any further processing. + */ + if ((socket->m_detected & GSOCK_LOST_FLAG) != 0) + { + socket->m_establishing = FALSE; + + CALL_CALLBACK(socket, GSOCK_LOST); + GSocket_Shutdown(socket); + return; + } + if (socket->m_establishing && !socket->m_server) { int error; @@ -1219,6 +1392,7 @@ void _GSocket_Detected_Write(GSocket *socket) if (error) { CALL_CALLBACK(socket, GSOCK_LOST); + GSocket_Shutdown(socket); } else { @@ -1299,7 +1473,7 @@ GAddress *GAddress_copy(GAddress *address) memcpy(addr2, address, sizeof(GAddress)); - if (address->m_addr) + if (address->m_addr && address->m_len > 0) { addr2->m_addr = (struct sockaddr *)malloc(addr2->m_len); if (addr2->m_addr == NULL) @@ -1442,7 +1616,10 @@ GSocketError GAddress_INET_SetHostName(GAddress *address, const char *hostname) { #else /* Use gethostbyname by default */ - if (1) +#ifndef __WXMAC__ + int val = 1; /* VA doesn't like constants in conditional expressions */ + if (val) +#endif { #endif struct in_addr *array_addr; @@ -1499,7 +1676,9 @@ GSocketError GAddress_INET_SetPortName(GAddress *address, const char *port, se = getservbyname(port, protocol); if (!se) { - if (isdigit(port[0])) + /* the cast to int suppresses compiler warnings about subscript having the + type char */ + if (isdigit((int)port[0])) { int port_int; @@ -1585,6 +1764,7 @@ unsigned short GAddress_INET_GetPort(GAddress *address) * ------------------------------------------------------------------------- */ +#ifndef __VISAGECPP__ GSocketError _GAddress_Init_UNIX(GAddress *address) { address->m_len = sizeof(struct sockaddr_un); @@ -1603,6 +1783,8 @@ GSocketError _GAddress_Init_UNIX(GAddress *address) return GSOCK_NOERROR; } +#define UNIX_SOCK_PATHLEN (sizeof(addr->sun_path)/sizeof(addr->sun_path[0])) + GSocketError GAddress_UNIX_SetPath(GAddress *address, const char *path) { struct sockaddr_un *addr; @@ -1612,7 +1794,8 @@ GSocketError GAddress_UNIX_SetPath(GAddress *address, const char *path) CHECK_ADDRESS(address, UNIX); addr = ((struct sockaddr_un *)address->m_addr); - memcpy(addr->sun_path, path, strlen(path)); + strncpy(addr->sun_path, path, UNIX_SOCK_PATHLEN); + addr->sun_path[UNIX_SOCK_PATHLEN - 1] = '\0'; return GSOCK_NOERROR; } @@ -1630,6 +1813,6 @@ GSocketError GAddress_UNIX_GetPath(GAddress *address, char *path, size_t sbuf) return GSOCK_NOERROR; } - +#endif /* !defined(__VISAGECPP__) */ #endif /* wxUSE_SOCKETS || defined(__GSOCKET_STANDALONE__) */