/* * Copyright 1992 Oracle and/or its affiliates. All rights reserved. * * 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 (including the next * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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. */ /****************************************************************** Copyright 1992, 1993, 1994 by FUJITSU LIMITED 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, and that the name of FUJITSU LIMITED not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. FUJITSU LIMITED makes no representations about the suitability of this software for any purpose. It is provided "as is" without express or implied warranty. FUJITSU LIMITED DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL FUJITSU LIMITED 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. Author: Hideki Hiura (hhiura@Sun.COM) Sun Microsystems, Inc. Takashi Fujiwara FUJITSU LIMITED fujiwara@a80.tech.yk.fujitsu.co.jp ******************************************************************/ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include "Xlibint.h" #include "Xlcint.h" #include "XimTrInt.h" #include "Ximint.h" TransportSW _XimTransportRec[] = { { "X", _XimXConf }, /* 1st entry must be X. This will be a fallback */ #ifdef TCPCONN { "tcp", _XimTransConf }, /* use X transport lib */ #endif /* TCPCONN */ #if defined(UNIXCONN) || defined(LOCALCONN) { "local", _XimTransConf }, /* use X transport lib */ #endif /* UNIXCONN */ { (char *)NULL, (Bool (*)(Xim, char *))NULL }, }; Bool _XimConnect(Xim im) { return im->private.proto.connect(im); } Bool _XimShutdown(Xim im) { return im->private.proto.shutdown(im); } Bool _XimWrite(Xim im, INT16 len, XPointer data) { return im->private.proto.write(im, len, data); } static int _CheckProtocolData( Xim im, char *recv_buf) { int data_len; data_len = (int)(((*((CARD16 *)recv_buf + 1)) * 4) + XIM_HEADER_SIZE); return data_len; } static int _XimReadData( Xim im, INT16 *len, XPointer buf, int buf_size) { char *hold_buf; char *tmp; int data_len; int packet_size; int ret_len; register int i; if (buf_size < XIM_HEADER_SIZE) { *len = (INT16)XIM_HEADER_SIZE; return XIM_OVERFLOW; } bzero(buf, buf_size); packet_size = 0; data_len = 0; if ((hold_buf = im->private.proto.hold_data)) { data_len = im->private.proto.hold_data_len; if (data_len >= XIM_HEADER_SIZE) { packet_size = _CheckProtocolData(im, hold_buf); if (packet_size > buf_size) { *len = (INT16)packet_size; return XIM_OVERFLOW; } if (packet_size <= data_len) { memcpy(buf, hold_buf, packet_size); for (i = packet_size; i < data_len; i++) { if (hold_buf[i]) break; } data_len -= i; if (data_len) { if (!(tmp = Xmalloc(data_len))) { return XIM_FALSE; } memcpy(tmp, &hold_buf[i], data_len); im->private.proto.hold_data = tmp; im->private.proto.hold_data_len = data_len; } else { im->private.proto.hold_data = 0; im->private.proto.hold_data_len = 0; } Xfree(hold_buf); *len = (INT16)packet_size; return XIM_TRUE; } } memcpy(buf, hold_buf, data_len); buf_size -= data_len; Xfree(hold_buf); im->private.proto.hold_data = 0; im->private.proto.hold_data_len = 0; } if (!packet_size) { while (data_len < XIM_HEADER_SIZE) { if (!(im->private.proto.read(im, (XPointer)&buf[data_len], buf_size, &ret_len))) { return XIM_FALSE; } data_len += ret_len; buf_size -= ret_len; } packet_size = _CheckProtocolData(im, buf); } if (packet_size > buf_size) { if (!(tmp = Xmalloc(data_len))) { return XIM_FALSE; } memcpy(tmp, buf, data_len); bzero(buf, data_len); im->private.proto.hold_data = tmp; im->private.proto.hold_data_len = data_len; *len = (INT16)packet_size; return XIM_OVERFLOW; } while (data_len < packet_size) { if (!(im->private.proto.read(im, (XPointer)&buf[data_len], buf_size, &ret_len))) { return XIM_FALSE; } data_len += ret_len; buf_size -= ret_len; } for (i = packet_size; i < data_len; i++) { if (buf[i]) break; } data_len -= i; if (data_len) { if (!(tmp = Xmalloc(data_len))) { return XIM_FALSE; } memcpy(tmp, &buf[i], data_len); bzero(&buf[i], data_len); im->private.proto.hold_data = tmp; im->private.proto.hold_data_len = data_len; } else { im->private.proto.hold_data = 0; im->private.proto.hold_data_len = 0; } *len = (INT16)packet_size; return XIM_TRUE; } static Bool _XimCallDispatcher( Xim im, INT16 len, XPointer data) { return im->private.proto.call_dispatcher(im, len, data); } int _XimRead(Xim im, INT16 *len, XPointer buf, int buf_size, Bool (*predicate)(Xim, INT16, XPointer, XPointer), XPointer arg) { INT16 read_len; int ret_code; for (;;) { ret_code = _XimReadData(im, &read_len, buf, buf_size); if(ret_code != XIM_TRUE) { return ret_code; } if ((*predicate)(im, read_len, buf, arg)) break; if (_XimCallDispatcher(im, read_len, buf)) continue; _XimError(im, 0, XIM_BadProtocol, (INT16)0, (CARD16)0, (char *)NULL); } *len = read_len; return True; } Bool _XimRegisterDispatcher( Xim im, Bool (*callback)( Xim, INT16, XPointer, XPointer ), XPointer call_data) { return im->private.proto.register_dispatcher(im, callback, call_data); } void _XimFlush(Xim im) { im->private.proto.flush(im); return; } Bool _XimFilterWaitEvent(Xim im) { INT16 read_len; CARD32 reply32[BUFSIZE/4]; char *reply = (char *)reply32; XPointer preply; int buf_size; int ret_code; buf_size = BUFSIZE; ret_code = _XimReadData(im, &read_len, (XPointer)reply, buf_size); if(ret_code == XIM_TRUE) { preply = reply; } else if(ret_code == XIM_OVERFLOW) { if(read_len <= 0) { preply = reply; } else { buf_size = (int)read_len; preply = Xmalloc(buf_size); ret_code = _XimReadData(im, &read_len, preply, buf_size); if(ret_code != XIM_TRUE) { if (preply != reply) Xfree(preply); return False; } } } else { return False; } if (_XimCallDispatcher(im, read_len, preply)) { if(reply != preply) Xfree(preply); return True; } _XimError(im, 0, XIM_BadProtocol, (INT16)0, (CARD16)0, (char *)NULL); if(reply != preply) Xfree(preply); return True; }