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IABSD.fr/xenocara/lib/libICE/src/misc.c
matthieu
- lib/libICE/src/misc.c
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/* $Xorg: misc.c,v 1.4 2001/02/09 02:03:26 xorgcvs Exp $ */ /****************************************************************************** Copyright 1993, 1998 The Open Group Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. 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 OPEN GROUP 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 Open Group 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 Open Group. Author: Ralph Mor, X Consortium ******************************************************************************/ /* $XFree86: xc/lib/ICE/misc.c,v 1.3 2001/01/17 19:41:29 dawes Exp $ */ #ifdef WIN32 #define _WILLWINSOCK_ #endif #ifdef HAVE_CONFIG_H #include <config.h> #endif #include <X11/ICE/ICElib.h> #include "ICElibint.h" #include <X11/Xtrans/Xtrans.h> #include <stdio.h> #ifdef WIN32 #include <X11/Xwinsock.h> #include <X11/Xw32defs.h> #endif /* * scratch buffer */ char * IceAllocScratch (iceConn, size) IceConn iceConn; unsigned long size; { if (!iceConn->scratch || size > iceConn->scratch_size) { if (iceConn->scratch) free (iceConn->scratch); iceConn->scratch = (char *) malloc ((unsigned) size); iceConn->scratch_size = size; } return (iceConn->scratch); } /* * Output/Input buffer functions */ int IceFlush (iceConn) IceConn iceConn; { _IceWrite (iceConn, (unsigned long) (iceConn->outbufptr - iceConn->outbuf), iceConn->outbuf); iceConn->outbufptr = iceConn->outbuf; return 1; } int IceGetOutBufSize (iceConn) IceConn iceConn; { return (iceConn->outbufmax - iceConn->outbuf); } int IceGetInBufSize (iceConn) IceConn iceConn; { return (iceConn->inbufmax - iceConn->inbuf); } /* * informational functions */ IceConnectStatus IceConnectionStatus (iceConn) IceConn iceConn; { return (iceConn->connection_status); } char * IceVendor (iceConn) IceConn iceConn; { return strdup(iceConn->vendor); } char * IceRelease (iceConn) IceConn iceConn; { return strdup(iceConn->release); } int IceProtocolVersion (iceConn) IceConn iceConn; { return (_IceVersions[iceConn->my_ice_version_index].major_version); } int IceProtocolRevision (iceConn) IceConn iceConn; { return (_IceVersions[iceConn->my_ice_version_index].minor_version); } int IceConnectionNumber (iceConn) IceConn iceConn; { return (_IceTransGetConnectionNumber (iceConn->trans_conn)); } char * IceConnectionString (iceConn) IceConn iceConn; { if (iceConn->connection_string) { return strdup(iceConn->connection_string); } else return (NULL); } unsigned long IceLastSentSequenceNumber (iceConn) IceConn iceConn; { return (iceConn->send_sequence); } unsigned long IceLastReceivedSequenceNumber (iceConn) IceConn iceConn; { return (iceConn->receive_sequence); } Bool IceSwapping (iceConn) IceConn iceConn; { return (iceConn->swap); } /* * Read "n" bytes from a connection. * * Return Status 0 if we detected an EXPECTED closed connection. * */ Status _IceRead (iceConn, nbytes, ptr) register IceConn iceConn; unsigned long nbytes; register char *ptr; { register unsigned long nleft; nleft = nbytes; while (nleft > 0) { int nread; if (iceConn->io_ok) nread = _IceTransRead (iceConn->trans_conn, ptr, (int) nleft); else return (1); if (nread <= 0) { #ifdef WIN32 errno = WSAGetLastError(); #endif if (iceConn->want_to_close) { /* * We sent a WantToClose message and now we detected that * the other side closed the connection. */ _IceConnectionClosed (iceConn); /* invoke watch procs */ _IceFreeConnection (iceConn); return (0); } else { /* * Fatal IO error. First notify each protocol's IceIOErrorProc * callback, then invoke the application IO error handler. */ iceConn->io_ok = False; if (iceConn->connection_status == IceConnectPending) { /* * Don't invoke IO error handler if we are in the * middle of a connection setup. */ return (1); } if (iceConn->process_msg_info) { int i; for (i = iceConn->his_min_opcode; i <= iceConn->his_max_opcode; i++) { _IceProcessMsgInfo *process; process = &iceConn->process_msg_info[ i - iceConn->his_min_opcode]; if ((process != NULL) && process->in_use) { IceIOErrorProc IOErrProc = process->accept_flag ? process->protocol->accept_client->io_error_proc : process->protocol->orig_client->io_error_proc; if (IOErrProc) (*IOErrProc) (iceConn); } } } (*_IceIOErrorHandler) (iceConn); return (1); } } nleft -= nread; ptr += nread; } return (1); } /* * If we read a message header with a bad major or minor opcode, * we need to advance to the end of the message. This way, the next * message can be processed correctly. */ void _IceReadSkip (iceConn, nbytes) register IceConn iceConn; register unsigned long nbytes; { char temp[512]; while (nbytes > 0) { unsigned long rbytes = nbytes > 512 ? 512 : nbytes; _IceRead (iceConn, rbytes, temp); nbytes -= rbytes; } } /* * Write "n" bytes to a connection. */ void _IceWrite (iceConn, nbytes, ptr) register IceConn iceConn; unsigned long nbytes; register char *ptr; { register unsigned long nleft; nleft = nbytes; while (nleft > 0) { int nwritten; if (iceConn->io_ok) nwritten = _IceTransWrite (iceConn->trans_conn, ptr, (int) nleft); else return; if (nwritten <= 0) { #ifdef WIN32 errno = WSAGetLastError(); #endif /* * Fatal IO error. First notify each protocol's IceIOErrorProc * callback, then invoke the application IO error handler. */ iceConn->io_ok = False; if (iceConn->connection_status == IceConnectPending) { /* * Don't invoke IO error handler if we are in the * middle of a connection setup. */ return; } if (iceConn->process_msg_info) { int i; for (i = iceConn->his_min_opcode; i <= iceConn->his_max_opcode; i++) { _IceProcessMsgInfo *process; process = &iceConn->process_msg_info[ i - iceConn->his_min_opcode]; if (process->in_use) { IceIOErrorProc IOErrProc = process->accept_flag ? process->protocol->accept_client->io_error_proc : process->protocol->orig_client->io_error_proc; if (IOErrProc) (*IOErrProc) (iceConn); } } } (*_IceIOErrorHandler) (iceConn); return; } nleft -= nwritten; ptr += nwritten; } } #ifdef WORD64 IceWriteData16 (iceConn, nbytes, data) IceConn iceConn; unsigned long nbytes; short *data; { int numShorts = nbytes / 2; int index = 0; while (index < numShorts) { int spaceLeft, count, i; int shortsLeft = numShorts - index; spaceLeft = iceConn->outbufmax - iceConn->outbufptr - 1; if (spaceLeft < 2) { IceFlush (iceConn); spaceLeft = iceConn->outbufmax - iceConn->outbufptr - 1; } count = (shortsLeft < spaceLeft / 2) ? shortsLeft : spaceLeft / 2; for (i = 0; i < count; i++) STORE_CARD16 (iceConn->outbufptr, data[index++]); } } IceWriteData32 (iceConn, nbytes, data) IceConn iceConn; unsigned long nbytes; int *data; { int numLongs = nbytes / 4; int index = 0; while (index < numLongs) { int spaceLeft, count, i; int longsLeft = numLongs - index; spaceLeft = iceConn->outbufmax - iceConn->outbufptr - 1; if (spaceLeft < 4) { IceFlush (iceConn); spaceLeft = iceConn->outbufmax - iceConn->outbufptr - 1; } count = (longsLeft < spaceLeft / 4) ? longsLeft : spaceLeft / 4; for (i = 0; i < count; i++) STORE_CARD32 (iceConn->outbufptr, data[index++]); } } IceReadData16 (iceConn, swap, nbytes, data) IceConn iceConn; Bool swap; unsigned long nbytes; short *data; { /* NOT IMPLEMENTED YET */ } IceReadData32 (iceConn, swap, nbytes, data) IceConn iceConn; Bool swap; unsigned long nbytes; int *data; { /* NOT IMPLEMENTED YET */ } #endif /* WORD64 */ void _IceAddOpcodeMapping (iceConn, hisOpcode, myOpcode) IceConn iceConn; int hisOpcode; int myOpcode; { if (hisOpcode <= 0 || hisOpcode > 255) { return; } else if (iceConn->process_msg_info == NULL) { iceConn->process_msg_info = (_IceProcessMsgInfo *) malloc ( sizeof (_IceProcessMsgInfo)); iceConn->his_min_opcode = iceConn->his_max_opcode = hisOpcode; } else if (hisOpcode < iceConn->his_min_opcode) { _IceProcessMsgInfo *oldVec = iceConn->process_msg_info; int oldsize = iceConn->his_max_opcode - iceConn->his_min_opcode + 1; int newsize = iceConn->his_max_opcode - hisOpcode + 1; int i; iceConn->process_msg_info = (_IceProcessMsgInfo *) malloc ( newsize * sizeof (_IceProcessMsgInfo)); memcpy (&iceConn->process_msg_info[ iceConn->his_min_opcode - hisOpcode], oldVec, oldsize * sizeof (_IceProcessMsgInfo)); free ((char *) oldVec); for (i = hisOpcode + 1; i < iceConn->his_min_opcode; i++) { iceConn->process_msg_info[i - iceConn->his_min_opcode].in_use = False; iceConn->process_msg_info[i - iceConn->his_min_opcode].protocol = NULL; } iceConn->his_min_opcode = hisOpcode; } else if (hisOpcode > iceConn->his_max_opcode) { _IceProcessMsgInfo *oldVec = iceConn->process_msg_info; int oldsize = iceConn->his_max_opcode - iceConn->his_min_opcode + 1; int newsize = hisOpcode - iceConn->his_min_opcode + 1; int i; iceConn->process_msg_info = (_IceProcessMsgInfo *) malloc ( newsize * sizeof (_IceProcessMsgInfo)); memcpy (iceConn->process_msg_info, oldVec, oldsize * sizeof (_IceProcessMsgInfo)); free ((char *) oldVec); for (i = iceConn->his_max_opcode + 1; i < hisOpcode; i++) { iceConn->process_msg_info[i - iceConn->his_min_opcode].in_use = False; iceConn->process_msg_info[i - iceConn->his_min_opcode].protocol = NULL; } iceConn->his_max_opcode = hisOpcode; } iceConn->process_msg_info[hisOpcode - iceConn->his_min_opcode].in_use = True; iceConn->process_msg_info[hisOpcode - iceConn->his_min_opcode].my_opcode = myOpcode; iceConn->process_msg_info[hisOpcode - iceConn->his_min_opcode].protocol = &_IceProtocols[myOpcode - 1]; } char * IceGetPeerName (IceConn iceConn) { return (_IceTransGetPeerNetworkId (iceConn->trans_conn)); } char * _IceGetPeerName (IceConn iceConn) { return (IceGetPeerName(iceConn)); }