/* $XConsortium: Xtranssock.c,v 1.34 95/01/12 18:25:25 kaleb Exp $ */ /* $XFree86: xc/lib/xtrans/Xtranssock.c,v 3.11 1995/01/28 15:44:19 dawes Exp $ */ /* Copyright (c) 1993, 1994 X Consortium Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of the X Consortium shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from the X Consortium. */ /* Copyright (c) 1993, 1994 NCR Corporation - Dayton, Ohio, USA * * All Rights Reserved * * Permission to use, copy, modify, and distribute this software and its * documentation for any purpose and without fee is hereby granted, provided * that the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the name NCR not be used in advertising * or publicity pertaining to distribution of the software without specific, * written prior permission. NCR makes no representations about the * suitability of this software for any purpose. It is provided "as is" * without express or implied warranty. * * NCR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN * NO EVENT SHALL NCR BE LIABLE FOR ANY SPECIAL, INDIRECT OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include #ifndef WIN32 #if defined(TCPCONN) || defined(UNIXCONN) #include #else #ifdef ESIX #include #endif #endif #if defined(TCPCONN) || defined(UNIXCONN) #include #endif #ifdef UNIXCONN #ifndef X_NO_SYS_UN #include #endif #include #endif #ifdef hpux #define NO_TCP_H #endif /* hpux */ #ifdef MOTOROLA #ifdef SYSV #define NO_TCP_H #endif /* SYSV */ #endif /* MOTOROLA */ #ifndef NO_TCP_H #ifdef __osf__ #include #endif /* osf */ #if defined(__NetBSD__) || defined(__FreeBSD__) #include #endif /* __NetBSD__ || __FreeBSD__ */ #include #endif /* !NO_TCP_H */ #include #ifdef SVR4 #include #endif #if (defined(i386) && defined(SYSV) && !defined(SCO)) || defined(_SEQUENT_) #if !defined(_SEQUENT_) && !defined(ESIX) #include #endif /* _SEQUENT_ || ESIX */ #ifndef ISC #include #endif #endif /* i386 && SYSV && !SCO || _SEQUENT_ */ #endif /* !WIN32 */ #ifdef WIN32 #define _WILLWINSOCK_ #define BOOL wBOOL #undef Status #define Status wStatus #include #undef Status #define Status int #undef BOOL #include #undef close #define close closesocket #define ECONNREFUSED WSAECONNREFUSED #define EADDRINUSE WSAEADDRINUSE #define EPROTOTYPE WSAEPROTOTYPE #undef EWOULDBLOCK #define EWOULDBLOCK WSAEWOULDBLOCK #undef EINTR #define EINTR WSAEINTR #endif /* WIN32 */ #if defined(SO_DONTLINGER) && defined(SO_LINGER) #undef SO_DONTLINGER #endif #ifdef __EMX__ static int IBMsockInit = 0; #define SocketInitOnce()\ if (!IBMsockInit) {\ sock_init();\ IBMsockInit = 1;\ } #undef EINTR #define EINTR SOCEINTR #undef EINVAL #define EINVAL SOCEINVAL #undef errno #define errno sock_errno() #undef close #define close soclose #undef ioctl #define ioctl sockioctl #define SOCKET int #else /* others don't need this */ #define SocketInitOnce() /**/ #endif /* * This is the Socket implementation of the X Transport service layer * * This file contains the implementation for both the UNIX and INET domains, * and can be built for either one, or both. * */ typedef struct _Sockettrans2dev { char *transname; int family; int devcotsname; int devcltsname; int protocol; } Sockettrans2dev; static Sockettrans2dev Sockettrans2devtab[] = { #ifdef TCPCONN {"inet",AF_INET,SOCK_STREAM,SOCK_DGRAM,0}, {"tcp",AF_INET,SOCK_STREAM,SOCK_DGRAM,0}, #endif /* TCPCONN */ #ifdef UNIXCONN {"unix",AF_UNIX,SOCK_STREAM,SOCK_DGRAM,0}, #if !defined(LOCALCONN) {"local",AF_UNIX,SOCK_STREAM,SOCK_DGRAM,0}, #endif /* !LOCALCONN */ #endif /* UNIXCONN */ }; #define NUMSOCKETFAMILIES (sizeof(Sockettrans2devtab)/sizeof(Sockettrans2dev)) #ifdef UNIXCONN #ifdef hpux #if defined(X11_t) #define UNIX_PATH "/usr/spool/sockets/X11/" #define UNIX_DIR "/usr/spool/sockets/X11" #define OLD_UNIX_PATH "/tmp/.X11-unix/X" #endif /* X11_t */ #if defined(XIM_t) #define UNIX_PATH "/usr/spool/sockets/XIM/" #define UNIX_DIR "/usr/spool/sockets/XIM" #define OLD_UNIX_PATH "/tmp/.XIM-unix/XIM" #endif /* XIM_t */ #if defined(FS_t) || defined(FONT_t) #define UNIX_PATH "/usr/spool/sockets/fontserv/" #define UNIX_DIR "/usr/spool/sockets/fontserv" #endif /* FS_t || FONT_t */ #if defined(ICE_t) #define UNIX_PATH "/usr/spool/sockets/ICE/" #define UNIX_DIR "/usr/spool/sockets/ICE" #endif /* ICE_t */ #if defined(TEST_t) #define UNIX_PATH "/usr/spool/sockets/xtrans_test/" #define UNIX_DIR "/usr/spool/sockets/xtrans_test" #endif #else /* !hpux */ #if defined(X11_t) #define UNIX_PATH "/tmp/.X11-unix/X" #define UNIX_DIR "/tmp/.X11-unix" #endif /* X11_t */ #if defined(XIM_t) #define UNIX_PATH "/tmp/.XIM-unix/XIM" #define UNIX_DIR "/tmp/.XIM-unix" #endif /* XIM_t */ #if defined(FS_t) || defined(FONT_t) #define UNIX_PATH "/tmp/.font-unix/fs" #define UNIX_DIR "/tmp/.font-unix" #endif /* FS_t || FONT_t */ #if defined(ICE_t) #define UNIX_PATH "/tmp/.ICE-unix/" #define UNIX_DIR "/tmp/.ICE-unix" #endif /* ICE_t */ #if defined(TEST_t) #define UNIX_PATH "/tmp/.Test-unix/test" #define UNIX_DIR "/tmp/.Test-unix" #endif #endif /* hpux */ #endif /* UNIXCONN */ /* * These are some utility function used by the real interface function below. */ static int TRANS(SocketSelectFamily) (family) char *family; { int i; PRMSG (3,"TRANS(SocketSelectFamily) (%s)\n", family, 0, 0); for (i = 0; i < NUMSOCKETFAMILIES;i++) { if (!strcmp (family, Sockettrans2devtab[i].transname)) return i; } return -1; } /* * This function gets the local address of the socket and stores it in the * XtransConnInfo structure for the connection. */ static int TRANS(SocketINETGetAddr) (ciptr) XtransConnInfo ciptr; { struct sockaddr_in sockname; int namelen = sizeof sockname; PRMSG (3,"TRANS(SocketINETGetAddr) (%x)\n", ciptr, 0, 0); if (getsockname (ciptr->fd,(struct sockaddr *) &sockname, &namelen) < 0) { PRMSG (1,"TRANS(SocketINETGetAddr): getsockname() failed: %d\n", EGET(),0, 0); return -1; } /* * Everything looks good: fill in the XtransConnInfo structure. */ if ((ciptr->addr = (char *) malloc (namelen)) == NULL) { PRMSG (1, "TRANS(SocketINETGetAddr): Can't allocate space for the addr\n", 0, 0, 0); return -1; } ciptr->family = sockname.sin_family; ciptr->addrlen = namelen; memcpy (ciptr->addr, &sockname, ciptr->addrlen); return 0; } /* * This function gets the remote address of the socket and stores it in the * XtransConnInfo structure for the connection. */ static int TRANS(SocketINETGetPeerAddr) (ciptr) XtransConnInfo ciptr; { struct sockaddr_in sockname; int namelen = sizeof(sockname); PRMSG (3,"TRANS(SocketINETGetPeerAddr) (%x)\n", ciptr, 0, 0); if (getpeername (ciptr->fd, (struct sockaddr *) &sockname, &namelen) < 0) { PRMSG (1,"TRANS(SocketINETGetPeerAddr): getpeername() failed: %d\n", EGET(), 0, 0); return -1; } /* * Everything looks good: fill in the XtransConnInfo structure. */ if ((ciptr->peeraddr = (char *) malloc (namelen)) == NULL) { PRMSG (1, "TRANS(SocketINETGetPeerAddr): Can't allocate space for the addr\n", 0, 0, 0); return -1; } ciptr->peeraddrlen = namelen; memcpy (ciptr->peeraddr, &sockname, ciptr->peeraddrlen); return 0; } static XtransConnInfo TRANS(SocketOpen) (i, type) int i; int type; { XtransConnInfo ciptr; PRMSG (3,"TRANS(SocketOpen) (%d,%d)\n", i, type, 0); if ((ciptr = (XtransConnInfo) calloc ( 1, sizeof(struct _XtransConnInfo))) == NULL) { PRMSG (1, "TRANS(SocketOpen): malloc failed\n", 0, 0, 0); return NULL; } if ((ciptr->fd = socket(Sockettrans2devtab[i].family, type, Sockettrans2devtab[i].protocol)) < 0 #ifndef WIN32 #if (defined(X11_t) && !defined(USE_POLL)) || defined(FS_t) || defined(FONT_t) || ciptr->fd >= TRANS_OPEN_MAX #endif #endif ) { PRMSG (1, "TRANS(SocketOpen): socket() failed for %s\n", Sockettrans2devtab[i].transname, 0, 0); free ((char *) ciptr); return NULL; } #ifdef TCP_NODELAY if (Sockettrans2devtab[i].family == AF_INET) { /* * turn off TCP coalescence for INET sockets */ int tmp = 1; setsockopt (ciptr->fd, IPPROTO_TCP, TCP_NODELAY, (char *) &tmp, sizeof (int)); } #endif return ciptr; } #ifdef TRANS_REOPEN static XtransConnInfo TRANS(SocketReopen) (i, type, fd, port) int i; int type; int fd; char *port; { XtransConnInfo ciptr; PRMSG (3,"TRANS(SocketReopen) (%d,%d,%s)\n", type, fd, port); if ((ciptr = (XtransConnInfo) calloc ( 1, sizeof(struct _XtransConnInfo))) == NULL) { PRMSG (1, "TRANS(SocketReopen): malloc failed\n", 0, 0, 0); return NULL; } ciptr->fd = fd; return ciptr; } #endif /* TRANS_REOPEN */ /* * These functions are the interface supplied in the Xtransport structure */ #ifdef TRANS_CLIENT static XtransConnInfo TRANS(SocketOpenCOTSClient) (thistrans, protocol, host, port) Xtransport *thistrans; char *protocol; char *host; char *port; { XtransConnInfo ciptr; int i; PRMSG (2, "TRANS(SocketOpenCOTSClient) (%s,%s,%s)\n", protocol, host, port); SocketInitOnce(); if ((i = TRANS(SocketSelectFamily) (thistrans->TransName)) < 0) { PRMSG (1, "TRANS(SocketOpenCOTSClient): Unable to determine socket type for %s\n", thistrans->TransName, 0, 0); return NULL; } if ((ciptr = TRANS(SocketOpen) ( i, Sockettrans2devtab[i].devcotsname)) == NULL) { PRMSG (1,"TRANS(SocketOpenCOTSClient): Unable to open socket for %s\n", thistrans->TransName, 0, 0); return NULL; } /* Save the index for later use */ ciptr->index = i; return ciptr; } #endif /* TRANS_CLIENT */ #ifdef TRANS_SERVER static XtransConnInfo TRANS(SocketOpenCOTSServer) (thistrans, protocol, host, port) Xtransport *thistrans; char *protocol; char *host; char *port; { XtransConnInfo ciptr; int i; PRMSG (2,"TRANS(SocketOpenCOTSServer) (%s,%s,%s)\n", protocol, host, port); SocketInitOnce(); if ((i = TRANS(SocketSelectFamily) (thistrans->TransName)) < 0) { PRMSG (1, "TRANS(SocketOpenCOTSServer): Unable to determine socket type for %s\n", thistrans->TransName, 0, 0); return NULL; } if ((ciptr = TRANS(SocketOpen) ( i, Sockettrans2devtab[i].devcotsname)) == NULL) { PRMSG (1,"TRANS(SocketOpenCOTSServer): Unable to open socket for %s\n", thistrans->TransName, 0, 0); return NULL; } /* * Using this prevents the bind() check for an existing server listening * on the same port, but it is required for other reasons. */ #ifdef SO_REUSEADDR /* * SO_REUSEADDR only applied to AF_INET */ if (Sockettrans2devtab[i].family == AF_INET) { int one = 1; setsockopt (ciptr->fd, SOL_SOCKET, SO_REUSEADDR, (char *) &one, sizeof (int)); } #endif /* Save the index for later use */ ciptr->index = i; return ciptr; } #endif /* TRANS_SERVER */ #ifdef TRANS_CLIENT static XtransConnInfo TRANS(SocketOpenCLTSClient) (thistrans, protocol, host, port) Xtransport *thistrans; char *protocol; char *host; char *port; { XtransConnInfo ciptr; int i; PRMSG (2,"TRANS(SocketOpenCLTSClient) (%s,%s,%s)\n", protocol, host, port); SocketInitOnce(); if ((i = TRANS(SocketSelectFamily) (thistrans->TransName)) < 0) { PRMSG (1, "TRANS(SocketOpenCLTSClient): Unable to determine socket type for %s\n", thistrans->TransName, 0, 0); return NULL; } if ((ciptr = TRANS(SocketOpen) ( i, Sockettrans2devtab[i].devcotsname)) == NULL) { PRMSG (1,"TRANS(SocketOpenCLTSClient): Unable to open socket for %s\n", thistrans->TransName, 0, 0); return NULL; } /* Save the index for later use */ ciptr->index = i; return ciptr; } #endif /* TRANS_CLIENT */ #ifdef TRANS_SERVER static XtransConnInfo TRANS(SocketOpenCLTSServer) (thistrans, protocol, host, port) Xtransport *thistrans; char *protocol; char *host; char *port; { XtransConnInfo ciptr; int i; PRMSG (2,"TRANS(SocketOpenCLTSServer) (%s,%s,%s)\n", protocol, host, port); SocketInitOnce(); if ((i = TRANS(SocketSelectFamily) (thistrans->TransName)) < 0) { PRMSG (1, "TRANS(SocketOpenCLTSServer): Unable to determine socket type for %s\n", thistrans->TransName, 0, 0); return NULL; } if ((ciptr = TRANS(SocketOpen) ( i, Sockettrans2devtab[i].devcotsname)) == NULL) { PRMSG (1,"TRANS(SocketOpenCLTSServer): Unable to open socket for %s\n", thistrans->TransName, 0, 0); return NULL; } /* Save the index for later use */ ciptr->index = i; return ciptr; } #endif /* TRANS_SERVER */ #ifdef TRANS_REOPEN static XtransConnInfo TRANS(SocketReopenCOTSServer) (thistrans, fd, port) Xtransport *thistrans; int fd; char *port; { XtransConnInfo ciptr; int i; PRMSG (2, "TRANS(SocketReopenCOTSServer) (%d, %s)\n", fd, port, 0); SocketInitOnce(); if ((i = TRANS(SocketSelectFamily) (thistrans->TransName)) < 0) { PRMSG (1, "TRANS(SocketReopenCOTSServer): Unable to determine socket type for %s\n", thistrans->TransName, 0, 0); return NULL; } if ((ciptr = TRANS(SocketReopen) ( i, Sockettrans2devtab[i].devcotsname, fd, port)) == NULL) { PRMSG (1, "TRANS(SocketReopenCOTSServer): Unable to reopen socket for %s\n", thistrans->TransName, 0, 0); return NULL; } /* Save the index for later use */ ciptr->index = i; return ciptr; } static XtransConnInfo TRANS(SocketReopenCLTSServer) (thistrans, fd, port) Xtransport *thistrans; int fd; char *port; { XtransConnInfo ciptr; int i; PRMSG (2, "TRANS(SocketReopenCLTSServer) (%d, %s)\n", fd, port, 0); SocketInitOnce(); if ((i = TRANS(SocketSelectFamily) (thistrans->TransName)) < 0) { PRMSG (1, "TRANS(SocketReopenCLTSServer): Unable to determine socket type for %s\n", thistrans->TransName, 0, 0); return NULL; } if ((ciptr = TRANS(SocketReopen) ( i, Sockettrans2devtab[i].devcotsname, fd, port)) == NULL) { PRMSG (1, "TRANS(SocketReopenCLTSServer): Unable to reopen socket for %s\n", thistrans->TransName, 0, 0); return NULL; } /* Save the index for later use */ ciptr->index = i; return ciptr; } #endif /* TRANS_REOPEN */ static int TRANS(SocketSetOption) (ciptr, option, arg) XtransConnInfo ciptr; int option; int arg; { PRMSG (2,"TRANS(SocketSetOption) (%d,%d,%d)\n", ciptr->fd, option, arg); return -1; } #ifdef TRANS_SERVER static int TRANS(SocketCreateListener) (ciptr, sockname, socknamelen) XtransConnInfo ciptr; struct sockaddr *sockname; int socknamelen; { int namelen = socknamelen; int fd = ciptr->fd; int retry; PRMSG (3, "TRANS(SocketCreateListener) (%x,%d)\n", ciptr, fd, 0); if (Sockettrans2devtab[ciptr->index].family == AF_INET) retry = 20; else retry = 0; while (bind (fd, (struct sockaddr *) sockname, namelen) < 0) { if (errno == EADDRINUSE) return TRANS_ADDR_IN_USE; if (retry-- == 0) { PRMSG (1, "TRANS(SocketCreateListener): failed to bind listener\n", 0, 0, 0); close (fd); return TRANS_CREATE_LISTENER_FAILED; } #ifdef SO_REUSEADDR sleep (1); #else sleep (10); #endif /* SO_REUSEDADDR */ } if (Sockettrans2devtab[ciptr->index].family == AF_INET) { #ifdef SO_DONTLINGER setsockopt (fd, SOL_SOCKET, SO_DONTLINGER, (char *) NULL, 0); #else #ifdef SO_LINGER { static int linger[2] = { 0, 0 }; setsockopt (fd, SOL_SOCKET, SO_LINGER, (char *) linger, sizeof (linger)); } #endif #endif } if (listen (fd, 5) < 0) { PRMSG (1, "TRANS(SocketCreateListener): listen() failed\n", 0, 0, 0); close (fd); return TRANS_CREATE_LISTENER_FAILED; } /* Set a flag to indicate that this connection is a listener */ ciptr->flags = 1; return 0; } #ifdef TCPCONN static int TRANS(SocketINETCreateListener) (ciptr, port) XtransConnInfo ciptr; char *port; { struct sockaddr_in sockname; int namelen = sizeof(sockname); int status; short tmpport; struct servent *servp; #define PORTBUFSIZE 64 /* what is a real size for this? */ char portbuf[PORTBUFSIZE]; PRMSG (2, "TRANS(SocketINETCreateListener) (%s)\n", port, 0, 0); #ifdef X11_t /* * X has a well known port, that is transport dependent. It is easier * to handle it here, than try and come up with a transport independent * representation that can be passed in and resolved the usual way. * * The port that is passed here is really a string containing the idisplay * from ConnectDisplay(). */ if (is_numeric (port)) { tmpport = (short) atoi (port); sprintf (portbuf,"%d", X_TCP_PORT+tmpport); } else strncpy (portbuf, port, PORTBUFSIZE); port = portbuf; #endif if (port && *port) { /* Check to see if the port string is just a number (handles X11) */ if (!is_numeric (port)) { if ((servp = getservbyname (port, "tcp")) == NULL) { PRMSG (1, "TRANS(SocketINETCreateListener): Unable to get service for %s\n", port, 0, 0); return TRANS_CREATE_LISTENER_FAILED; } sockname.sin_port = servp->s_port; } else { tmpport = (short) atoi (port); sockname.sin_port = htons (tmpport); } } else sockname.sin_port = htons (0); #ifdef BSD44SOCKETS sockname.sin_len = sizeof (sockname); #endif sockname.sin_family = AF_INET; sockname.sin_addr.s_addr = htonl (INADDR_ANY); if ((status = TRANS(SocketCreateListener) (ciptr, (struct sockaddr *) &sockname, namelen)) < 0) { PRMSG (1, "TRANS(SocketINETCreateListener): TRANS(SocketCreateListener) () failed\n", 0, 0, 0); return status; } if (TRANS(SocketINETGetAddr) (ciptr) < 0) { PRMSG (1, "TRANS(SocketINETCreateListener): TRANS(SocketINETGetAddr) () failed\n", 0, 0, 0); return TRANS_CREATE_LISTENER_FAILED; } return 0; } #endif /* SOCKCONN */ #ifdef UNIXCONN static TRANS(SocketUNIXCreateListener) (ciptr, port) XtransConnInfo ciptr; char *port; { struct sockaddr_un sockname; int namelen; int oldUmask; int status; PRMSG (2, "TRANS(SocketUNIXCreateListener) (%s)\n", port ? port : "NULL", 0, 0); /* Make sure the directory is created */ oldUmask = umask (0); #ifdef UNIX_DIR if (!mkdir (UNIX_DIR, 0777)) chmod (UNIX_DIR, 0777); #endif sockname.sun_family = AF_UNIX; if (port && *port) { if (*port == '/') { /* a full pathname */ sprintf (sockname.sun_path, "%s", port); } else { sprintf (sockname.sun_path, "%s%s", UNIX_PATH, port); } } else { sprintf (sockname.sun_path, "%s%d", UNIX_PATH, getpid()); } #ifdef BSD44SOCKETS sockname.sun_len = strlen(sockname.sun_path); namelen = SUN_LEN(&sockname); #else namelen = strlen(sockname.sun_path) + sizeof(sockname.sun_family); #endif unlink (sockname.sun_path); if ((status = TRANS(SocketCreateListener) (ciptr, (struct sockaddr *) &sockname, namelen)) < 0) { PRMSG (1, "TRANS(SocketUNIXCreateListener): TRANS(SocketCreateListener) () failed\n", 0, 0, 0); return status; } /* * Now that the listener is esablished, create the addr info for * this connection. getpeername() doesn't work for UNIX Domain Sockets * on some systems (hpux at least), so we will just do it manually, instead * of calling something like TRANS(SocketUNIXGetAddr). */ namelen = sizeof (sockname); /* this will always make it the same size */ if ((ciptr->addr = (char *) malloc (namelen)) == NULL) { PRMSG (1, "TRANS(SocketUNIXCreateListener): Can't allocate space for the addr\n", 0, 0, 0); return TRANS_CREATE_LISTENER_FAILED; } ciptr->family = sockname.sun_family; ciptr->addrlen = namelen; memcpy (ciptr->addr, &sockname, ciptr->addrlen); (void) umask (oldUmask); return 0; } static TRANS(SocketUNIXResetListener) (ciptr) XtransConnInfo ciptr; { /* * See if the unix domain socket has disappeared. If it has, recreate it. */ struct sockaddr_un *unsock = (struct sockaddr_un *) ciptr->addr; struct stat statb; int status = TRANS_RESET_NOOP; void TRANS(FreeConnInfo) (); PRMSG (3, "TRANS(SocketUNIXResetListener) (%x,%d)\n", ciptr, ciptr->fd, 0); if (stat (unsock->sun_path, &statb) == -1 || ((statb.st_mode & S_IFMT) != #if (defined (sun) && defined(SVR4)) || defined(NCR) || defined(SCO) || !defined(S_IFSOCK) S_IFIFO)) #else S_IFSOCK)) #endif { int oldUmask = umask (0); #ifdef UNIX_DIR if (!mkdir (UNIX_DIR, 0777)) chmod (UNIX_DIR, 0777); #endif close (ciptr->fd); unlink (unsock->sun_path); if ((ciptr->fd = socket (AF_UNIX, SOCK_STREAM, 0)) < 0) { TRANS(FreeConnInfo) (ciptr); return TRANS_RESET_FAILURE; } if (bind (ciptr->fd, (struct sockaddr *) unsock, ciptr->addrlen) < 0) { close (ciptr->fd); TRANS(FreeConnInfo) (ciptr); return TRANS_RESET_FAILURE; } if (listen (ciptr->fd, 5) < 0) { close (ciptr->fd); TRANS(FreeConnInfo) (ciptr); return TRANS_RESET_FAILURE; } umask (oldUmask); status = TRANS_RESET_NEW_FD; } return status; } #endif /* UNIXCONN */ #ifdef TCPCONN static XtransConnInfo TRANS(SocketINETAccept) (ciptr, status) XtransConnInfo ciptr; int *status; { XtransConnInfo newciptr; struct sockaddr_in sockname; int namelen = sizeof(sockname); PRMSG (2, "TRANS(SocketINETAccept) (%x,%d)\n", ciptr, ciptr->fd, 0); if ((newciptr = (XtransConnInfo) calloc ( 1, sizeof(struct _XtransConnInfo))) == NULL) { PRMSG (1, "TRANS(SocketINETAccept): malloc failed\n", 0, 0, 0); *status = TRANS_ACCEPT_BAD_MALLOC; return NULL; } if ((newciptr->fd = accept (ciptr->fd, (struct sockaddr *) &sockname, &namelen)) < 0) { PRMSG (1, "TRANS(SocketINETAccept): accept() failed\n", 0, 0, 0); free (newciptr); *status = TRANS_ACCEPT_FAILED; return NULL; } #ifdef TCP_NODELAY { /* * turn off TCP coalescence for INET sockets */ int tmp = 1; setsockopt (newciptr->fd, IPPROTO_TCP, TCP_NODELAY, (char *) &tmp, sizeof (int)); } #endif /* * Get this address again because the transport may give a more * specific address now that a connection is established. */ if (TRANS(SocketINETGetAddr) (newciptr) < 0) { PRMSG (1, "TRANS(SocketINETAccept): TRANS(SocketINETGetAddr) () failed:\n", 0, 0, 0); close (newciptr->fd); free (newciptr); *status = TRANS_ACCEPT_MISC_ERROR; return NULL; } if (TRANS(SocketINETGetPeerAddr) (newciptr) < 0) { PRMSG (1, "TRANS(SocketINETAccept): TRANS(SocketINETGetPeerAddr) () failed:\n", 0, 0, 0); close (newciptr->fd); if (newciptr->addr) free (newciptr->addr); free (newciptr); *status = TRANS_ACCEPT_MISC_ERROR; return NULL; } *status = 0; return newciptr; } #endif /* TCPCONN */ #ifdef UNIXCONN static XtransConnInfo TRANS(SocketUNIXAccept) (ciptr, status) XtransConnInfo ciptr; int *status; { XtransConnInfo newciptr; struct sockaddr_un sockname; int namelen = sizeof(sockname); PRMSG (2, "TRANS(SocketUNIXAccept) (%x,%d)\n", ciptr, ciptr->fd, 0); if ((newciptr = (XtransConnInfo) calloc ( 1, sizeof(struct _XtransConnInfo))) == NULL) { PRMSG (1, "TRANS(SocketUNIXAccept): malloc failed\n", 0, 0, 0); *status = TRANS_ACCEPT_BAD_MALLOC; return NULL; } if ((newciptr->fd = accept (ciptr->fd, (struct sockaddr *) &sockname, &namelen)) < 0) { PRMSG (1, "TRANS(SocketUNIXAccept): accept() failed\n", 0, 0, 0); free (newciptr); *status = TRANS_ACCEPT_FAILED; return NULL; } /* * Get the socket name and the peer name from the listener socket, * since this is unix domain. */ if ((newciptr->addr = (char *) malloc (ciptr->addrlen)) == NULL) { PRMSG (1, "TRANS(SocketUNIXAccept): Can't allocate space for the addr\n", 0, 0, 0); close (newciptr->fd); free (newciptr); *status = TRANS_ACCEPT_BAD_MALLOC; return NULL; } newciptr->addrlen = ciptr->addrlen; memcpy (newciptr->addr, ciptr->addr, newciptr->addrlen); if ((newciptr->peeraddr = (char *) malloc (ciptr->addrlen)) == NULL) { PRMSG (1, "TRANS(SocketUNIXAccept): Can't allocate space for the addr\n", 0, 0, 0); close (newciptr->fd); if (newciptr->addr) free (newciptr->addr); free (newciptr); *status = TRANS_ACCEPT_BAD_MALLOC; return NULL; } newciptr->peeraddrlen = ciptr->addrlen; memcpy (newciptr->peeraddr, ciptr->addr, newciptr->addrlen); *status = 0; return newciptr; } #endif /* UNIXCONN */ #endif /* TRANS_SERVER */ #ifdef TRANS_CLIENT #ifdef TCPCONN static int TRANS(SocketINETConnect) (ciptr, host, port) XtransConnInfo ciptr; char *host; char *port; { struct sockaddr_in sockname; int namelen = sizeof(sockname); struct hostent *hostp; struct servent *servp; #define PORTBUFSIZE 64 /* what is a real size for this? */ char portbuf[PORTBUFSIZE]; int ret; short tmpport; unsigned long tmpaddr; char hostnamebuf[256]; /* tmp space */ PRMSG (2,"TRANS(SocketINETConnect) (%d,%s,%s)\n", ciptr->fd, host, port); if (!host) { hostnamebuf[0] = '\0'; (void) TRANS(GetHostname) (hostnamebuf, sizeof hostnamebuf); host = hostnamebuf; } #ifdef X11_t /* * X has a well known port, that is transport dependent. It is easier * to handle it here, than try and come up with a transport independent * representation that can be passed in and resolved the usual way. * * The port that is passed here is really a string containing the idisplay * from ConnectDisplay(). */ if (is_numeric (port)) { tmpport = (short) atoi (port); sprintf (portbuf, "%d", X_TCP_PORT + tmpport); } else #endif strncpy (portbuf, port, PORTBUFSIZE); /* * Build the socket name. */ #ifdef BSD44SOCKETS sockname.sin_len = sizeof (struct sockaddr_in); #endif sockname.sin_family = AF_INET; /* * fill in sin_addr */ /* check for ww.xx.yy.zz host string */ if (isascii (host[0]) && isdigit (host[0])) { tmpaddr = inet_addr (host); /* returns network byte order */ } else { tmpaddr = -1; } PRMSG (4,"TRANS(SocketINETConnect) inet_addr(%s) = %x\n", host, tmpaddr, 0); if (tmpaddr == -1) { if ((hostp = gethostbyname(host)) == NULL) { PRMSG (1,"TRANS(SocketINETConnect) () can't get address for %s\n", host, 0, 0); ESET(EINVAL); return TRANS_CONNECT_FAILED; } if (hostp->h_addrtype != AF_INET) /* is IP host? */ { PRMSG (1,"TRANS(SocketINETConnect) () not INET host%s\n", host, 0, 0); ESET(EPROTOTYPE); return TRANS_CONNECT_FAILED; } #if defined(CRAY) && defined(OLDTCP) /* Only Cray UNICOS3 and UNICOS4 will define this */ { long t; memcpy ((char *)&t, (char *) hostp->h_addr, sizeof (t)); sockname.sin_addr = t; } #else memcpy ((char *) &sockname.sin_addr, (char *) hostp->h_addr, sizeof (sockname.sin_addr)); #endif /* CRAY and OLDTCP */ } else { #if defined(CRAY) && defined(OLDTCP) /* Only Cray UNICOS3 and UNICOS4 will define this */ sockname.sin_addr = tmpaddr; #else sockname.sin_addr.s_addr = tmpaddr; #endif /* CRAY and OLDTCP */ } /* * fill in sin_port */ /* Check for number in the port string */ if (!is_numeric (portbuf)) { if ((servp = getservbyname (portbuf,"tcp")) == NULL) { PRMSG (1,"TRANS(SocketINETConnect) () can't get service for %s\n", portbuf, 0, 0); return TRANS_CONNECT_FAILED; } sockname.sin_port = servp->s_port; } else { tmpport = (short) atoi (portbuf); sockname.sin_port = htons (tmpport); } PRMSG (4,"TRANS(SocketINETConnect) sockname.sin_port = %d\n", ntohs(sockname.sin_port), 0, 0); /* * Do the connect() */ if (connect (ciptr->fd, (struct sockaddr *) &sockname, namelen) < 0) { #ifdef WIN32 int olderrno = WSAGetLastError(); #else int olderrno = errno; #endif PRMSG (1,"TRANS(SocketINETConnect) () can't connect: errno = %d\n", EGET(),0, 0); /* * If the error was ECONNREFUSED, the server may be overloaded * and we should try again. * * If the error was EINTR, the connect was interrupted and we * should try again. */ if (olderrno == ECONNREFUSED || olderrno == EINTR) return TRANS_TRY_CONNECT_AGAIN; else return TRANS_CONNECT_FAILED; } /* * Sync up the address fields of ciptr. */ if (TRANS(SocketINETGetAddr) (ciptr) < 0) { PRMSG (1, "TRANS(SocketINETConnect): TRANS(SocketINETGetAddr) () failed:\n", 0, 0, 0); return TRANS_CONNECT_FAILED; } if (TRANS(SocketINETGetPeerAddr) (ciptr) < 0) { PRMSG (1, "TRANS(SocketINETConnect): TRANS(SocketINETGetPeerAddr) () failed:\n", 0, 0, 0); return TRANS_CONNECT_FAILED; } return 0; } #endif /* TCPCONN */ #ifdef UNIXCONN static int TRANS(SocketUNIXConnect) (ciptr, host, port) XtransConnInfo ciptr; char *host; char *port; { struct sockaddr_un sockname; int namelen; #if defined(hpux) && defined(X11_t) struct sockaddr_un old_sockname; int old_namelen; #endif PRMSG (2,"TRANS(SocketUNIXConnect) (%d,%s,%s)\n", ciptr->fd, host, port); if (!port || !*port) { PRMSG (1,"TRANS(SocketUNIXConnect): Missing port specification\n", 0, 0, 0); return TRANS_CONNECT_FAILED; } /* * Build the socket name. */ sockname.sun_family = AF_UNIX; if (*port == '/') { /* a full pathname */ sprintf (sockname.sun_path, "%s", port); } else { sprintf (sockname.sun_path, "%s%s", UNIX_PATH, port); } #ifdef BSD44SOCKETS sockname.sun_len = strlen (sockname.sun_path); namelen = SUN_LEN (&sockname); #else namelen = strlen (sockname.sun_path) + sizeof (sockname.sun_family); #endif #if defined(hpux) && defined(X11_t) /* * This is gross, but it was in Xlib */ old_sockname.sun_family = AF_UNIX; if (*port == '/') { /* a full pathname */ sprintf (old_sockname.sun_path, "%s", port); } else { sprintf (old_sockname.sun_path, "%s%s", OLD_UNIX_PATH, port); } old_namelen = strlen (old_sockname.sun_path) + sizeof (old_sockname.sun_family); #endif /* * Do the connect() */ if (connect (ciptr->fd, (struct sockaddr *) &sockname, namelen) < 0) { int olderrno = errno; int connected = 0; #if defined(hpux) && defined(X11_t) if (olderrno == ENOENT) { if (connect (ciptr->fd, (struct sockaddr *) &old_sockname, old_namelen) >= 0) { connected = 1; } else olderrno = errno; } #endif if (!connected) { errno = olderrno; PRMSG (1,"TRANS(SocketUNIXConnect) () can't connect: errno = %d\n", EGET(),0, 0); if (olderrno == ENOENT || olderrno == EINTR) return TRANS_TRY_CONNECT_AGAIN; else return TRANS_CONNECT_FAILED; } } /* * Get the socket name and the peer name from the connect socket, * since this is unix domain. */ if ((ciptr->addr = (char *) malloc(namelen)) == NULL || (ciptr->peeraddr = (char *) malloc(namelen)) == NULL) { PRMSG (1, "TRANS(SocketUNIXCreateListener): Can't allocate space for the addr\n", 0, 0, 0); return TRANS_CONNECT_FAILED; } ciptr->family = AF_UNIX; ciptr->addrlen = namelen; ciptr->peeraddrlen = namelen; memcpy (ciptr->addr, &sockname, ciptr->addrlen); memcpy (ciptr->peeraddr, &sockname, ciptr->peeraddrlen); return 0; } #endif /* UNIXCONN */ #endif /* TRANS_CLIENT */ static int TRANS(SocketBytesReadable) (ciptr, pend) XtransConnInfo ciptr; BytesReadable_t *pend; { int ret; char dummybuf[1500]; PRMSG (2,"TRANS(SocketBytesReadable) (%x,%d,%x)\n", ciptr, ciptr->fd, pend); #ifdef WIN32 return ioctlsocket ((SOCKET) ciptr->fd, FIONREAD, (u_long *) pend); #else #if (defined(i386) && defined(SYSV) && !defined(SCO)) || defined(_SEQUENT_) return ioctl (ciptr->fd, I_NREAD, (char *) pend); #else #if defined(__EMX__) return ioctl (ciptr->fd, FIONREAD, (char*) pend, sizeof(int)); #else return ioctl (ciptr->fd, FIONREAD, (char *) pend); #endif /* __EMX__ */ #endif /* i386 && SYSV && !SCO || _SEQUENT_ */ #endif /* WIN32 */ } static int TRANS(SocketRead) (ciptr, buf, size) XtransConnInfo ciptr; char *buf; int size; { int ret; PRMSG (2,"TRANS(SocketRead) (%d,%x,%d)\n", ciptr->fd, buf, size); #if defined(WIN32) || defined(__EMX__) ret = recv ((SOCKET)ciptr->fd, buf, size, 0); printf("recv: return = %d\n",ret); if (ret==-1) psock_errno("read"); return ret; #else return read (ciptr->fd, buf, size); #endif /* WIN32 */ } static int TRANS(SocketWrite) (ciptr, buf, size) XtransConnInfo ciptr; char *buf; int size; { PRMSG (2,"TRANS(SocketWrite) (%d,%x,%d)\n", ciptr->fd, buf, size); #if defined(WIN32) || defined(__EMX__) return send ((SOCKET)ciptr->fd, buf, size, 0); #else return write (ciptr->fd, buf, size); #endif /* WIN32 */ } static int TRANS(SocketReadv) (ciptr, buf, size) XtransConnInfo ciptr; struct iovec *buf; int size; { PRMSG (2,"TRANS(SocketReadv) (%d,%x,%d)\n", ciptr->fd, buf, size); return READV (ciptr, buf, size); } static int TRANS(SocketWritev) (ciptr, buf, size) XtransConnInfo ciptr; struct iovec *buf; int size; { PRMSG (2,"TRANS(SocketWritev) (%d,%x,%d)\n", ciptr->fd, buf, size); return WRITEV (ciptr, buf, size); } static int TRANS(SocketDisconnect) (ciptr) XtransConnInfo ciptr; { PRMSG (2,"TRANS(SocketDisconnect) (%x,%d)\n", ciptr, ciptr->fd, 0); return shutdown (ciptr->fd, 2); /* disallow further sends and receives */ } #ifdef TCPCONN static int TRANS(SocketINETClose) (ciptr) XtransConnInfo ciptr; { PRMSG (2,"TRANS(SocketINETClose) (%x,%d)\n", ciptr, ciptr->fd, 0); return close (ciptr->fd); } #endif /* TCPCONN */ #ifdef UNIXCONN static int TRANS(SocketUNIXClose) (ciptr) XtransConnInfo ciptr; { /* * If this is the server side, then once the socket is closed, * it must be unlinked to completely close it */ struct sockaddr_un *sockname = (struct sockaddr_un *) ciptr->addr; char path[200]; /* > sizeof sun_path +1 */ int ret; PRMSG (2,"TRANS(SocketUNIXClose) (%x,%d)\n", ciptr, ciptr->fd, 0); ret = close(ciptr->fd); if (ciptr->flags && sockname && sockname->sun_family == AF_UNIX && sockname->sun_path[0]) { strncpy (path, sockname->sun_path, ciptr->addrlen - sizeof (sockname->sun_family)); unlink (path); } return ret; } static int TRANS(SocketUNIXCloseForCloning) (ciptr) XtransConnInfo ciptr; { /* * Don't unlink path. */ int ret; PRMSG (2,"TRANS(SocketUNIXCloseForCloning) (%x,%d)\n", ciptr, ciptr->fd, 0); ret = close(ciptr->fd); return ret; } #endif /* UNIXCONN */ #ifdef TCPCONN Xtransport TRANS(SocketTCPFuncs) = { /* Socket Interface */ "tcp", 0, #ifdef TRANS_CLIENT TRANS(SocketOpenCOTSClient), #endif /* TRANS_CLIENT */ #ifdef TRANS_SERVER TRANS(SocketOpenCOTSServer), #endif /* TRANS_SERVER */ #ifdef TRANS_CLIENT TRANS(SocketOpenCLTSClient), #endif /* TRANS_CLIENT */ #ifdef TRANS_SERVER TRANS(SocketOpenCLTSServer), #endif /* TRANS_SERVER */ #ifdef TRANS_REOPEN TRANS(SocketReopenCOTSServer), TRANS(SocketReopenCLTSServer), #endif TRANS(SocketSetOption), #ifdef TRANS_SERVER TRANS(SocketINETCreateListener), NULL, /* ResetListener */ TRANS(SocketINETAccept), #endif /* TRANS_SERVER */ #ifdef TRANS_CLIENT TRANS(SocketINETConnect), #endif /* TRANS_CLIENT */ TRANS(SocketBytesReadable), TRANS(SocketRead), TRANS(SocketWrite), TRANS(SocketReadv), TRANS(SocketWritev), TRANS(SocketDisconnect), TRANS(SocketINETClose), TRANS(SocketINETClose), }; Xtransport TRANS(SocketINETFuncs) = { /* Socket Interface */ "inet", TRANS_ALIAS, #ifdef TRANS_CLIENT TRANS(SocketOpenCOTSClient), #endif /* TRANS_CLIENT */ #ifdef TRANS_SERVER TRANS(SocketOpenCOTSServer), #endif /* TRANS_SERVER */ #ifdef TRANS_CLIENT TRANS(SocketOpenCLTSClient), #endif /* TRANS_CLIENT */ #ifdef TRANS_SERVER TRANS(SocketOpenCLTSServer), #endif /* TRANS_SERVER */ #ifdef TRANS_REOPEN TRANS(SocketReopenCOTSServer), TRANS(SocketReopenCLTSServer), #endif TRANS(SocketSetOption), #ifdef TRANS_SERVER TRANS(SocketINETCreateListener), NULL, /* ResetListener */ TRANS(SocketINETAccept), #endif /* TRANS_SERVER */ #ifdef TRANS_CLIENT TRANS(SocketINETConnect), #endif /* TRANS_CLIENT */ TRANS(SocketBytesReadable), TRANS(SocketRead), TRANS(SocketWrite), TRANS(SocketReadv), TRANS(SocketWritev), TRANS(SocketDisconnect), TRANS(SocketINETClose), TRANS(SocketINETClose), }; #endif /* TCPCONN */ #ifdef UNIXCONN #if !defined(LOCALCONN) Xtransport TRANS(SocketLocalFuncs) = { /* Socket Interface */ "local", 0, #ifdef TRANS_CLIENT TRANS(SocketOpenCOTSClient), #endif /* TRANS_CLIENT */ #ifdef TRANS_SERVER TRANS(SocketOpenCOTSServer), #endif /* TRANS_SERVER */ #ifdef TRANS_CLIENT TRANS(SocketOpenCLTSClient), #endif /* TRANS_CLIENT */ #ifdef TRANS_SERVER TRANS(SocketOpenCLTSServer), #endif /* TRANS_SERVER */ #ifdef TRANS_REOPEN TRANS(SocketReopenCOTSServer), TRANS(SocketReopenCLTSServer), #endif TRANS(SocketSetOption), #ifdef TRANS_SERVER TRANS(SocketUNIXCreateListener), TRANS(SocketUNIXResetListener), TRANS(SocketUNIXAccept), #endif /* TRANS_SERVER */ #ifdef TRANS_CLIENT TRANS(SocketUNIXConnect), #endif /* TRANS_CLIENT */ TRANS(SocketBytesReadable), TRANS(SocketRead), TRANS(SocketWrite), TRANS(SocketReadv), TRANS(SocketWritev), TRANS(SocketDisconnect), TRANS(SocketUNIXClose), TRANS(SocketUNIXCloseForCloning), }; #endif /* !LOCALCONN */ Xtransport TRANS(SocketUNIXFuncs) = { /* Socket Interface */ "unix", #if !defined(LOCALCONN) TRANS_ALIAS, #else 0, #endif #ifdef TRANS_CLIENT TRANS(SocketOpenCOTSClient), #endif /* TRANS_CLIENT */ #ifdef TRANS_SERVER TRANS(SocketOpenCOTSServer), #endif /* TRANS_SERVER */ #ifdef TRANS_CLIENT TRANS(SocketOpenCLTSClient), #endif /* TRANS_CLIENT */ #ifdef TRANS_SERVER TRANS(SocketOpenCLTSServer), #endif /* TRANS_SERVER */ #ifdef TRANS_REOPEN TRANS(SocketReopenCOTSServer), TRANS(SocketReopenCLTSServer), #endif TRANS(SocketSetOption), #ifdef TRANS_SERVER TRANS(SocketUNIXCreateListener), TRANS(SocketUNIXResetListener), TRANS(SocketUNIXAccept), #endif /* TRANS_SERVER */ #ifdef TRANS_CLIENT TRANS(SocketUNIXConnect), #endif /* TRANS_CLIENT */ TRANS(SocketBytesReadable), TRANS(SocketRead), TRANS(SocketWrite), TRANS(SocketReadv), TRANS(SocketWritev), TRANS(SocketDisconnect), TRANS(SocketUNIXClose), TRANS(SocketUNIXCloseForCloning), }; #endif /* UNIXCONN */