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+/***********************************************************
+
+Copyright 1987, 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.
+
+
+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+ 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 of Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL 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.
+
+******************************************************************/
+/* $Xorg: osdep.h,v 1.5 2001/02/09 02:05:23 xorgcvs Exp $ */
+
+#define BOTIMEOUT 200 /* in milliseconds */
+#define BUFSIZE 4096
+#define BUFWATERMARK 8192
+#define MAXBUFSIZE (1 << 22)
+
+#ifndef sgi /* SGI defines OPEN_MAX in a useless way */
+#ifndef X_NOT_POSIX
+#ifdef _POSIX_SOURCE
+#include <limits.h>
+#else
+#define _POSIX_SOURCE
+#include <limits.h>
+#undef _POSIX_SOURCE
+#endif
+#else /* X_NOT_POSIX */
+#ifdef WIN32
+#define _POSIX_
+#include <limits.h>
+#undef _POSIX_
+#endif
+#endif /* X_NOT_POSIX */
+#endif
+
+#ifndef OPEN_MAX
+#ifdef SVR4
+#define OPEN_MAX 256
+#else
+#include <sys/param.h>
+#ifndef OPEN_MAX
+#if defined(NOFILE) && !defined(NOFILES_MAX)
+#define OPEN_MAX NOFILE
+#else
+#define OPEN_MAX NOFILES_MAX
+#endif
+#endif
+#endif
+#endif
+
+#if OPEN_MAX <= 256
+#define MAXSOCKS (OPEN_MAX - 1)
+#else
+#define MAXSOCKS 256
+#endif
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+typedef struct _connectionInput {
+ struct _connectionInput *next;
+ char *buffer; /* contains current client input */
+ char *bufptr; /* pointer to current start of data */
+ int bufcnt; /* count of bytes in buffer */
+ int lenLastReq;
+ int size;
+} ConnectionInput, *ConnectionInputPtr;
+
+typedef struct _connectionOutput {
+ struct _connectionOutput *next;
+ int size;
+ unsigned char *buf;
+ int count;
+#ifdef LBX
+ Bool nocompress;
+#endif
+} ConnectionOutput, *ConnectionOutputPtr;
+
+#ifdef K5AUTH
+typedef struct _k5_state {
+ int stageno; /* current stage of auth protocol */
+ pointer srvcreds; /* server credentials */
+ pointer srvname; /* server principal name */
+ pointer ktname; /* key table: principal-key pairs */
+ pointer skey; /* session key */
+} k5_state;
+#endif
+
+#ifdef LBX
+typedef struct _LbxProxy *OsProxyPtr;
+#endif
+
+typedef struct _osComm {
+ int fd;
+ ConnectionInputPtr input;
+ ConnectionOutputPtr output;
+ XID auth_id; /* authorization id */
+#ifdef K5AUTH
+ k5_state authstate; /* state of setup auth conversation */
+#endif
+ CARD32 conn_time; /* timestamp if not established, else 0 */
+ struct _XtransConnInfo *trans_conn; /* transport connection object */
+#ifdef LBX
+ OsProxyPtr proxy;
+ ConnectionInputPtr largereq;
+ void (*Close) ();
+ int (*Flush) ();
+#endif
+} OsCommRec, *OsCommPtr;
+
+#ifdef LBX
+#define FlushClient(who, oc, extraBuf, extraCount) \
+ (*(oc)->Flush)(who, oc, extraBuf, extraCount)
+extern int StandardFlushClient(
+#if NeedFunctionPrototypes
+ ClientPtr /*who*/,
+ OsCommPtr /*oc*/,
+ char* /*extraBuf*/,
+ int /*extraCount*/
+#endif
+);
+#else
+extern int FlushClient(
+#if NeedFunctionPrototypes
+ ClientPtr /*who*/,
+ OsCommPtr /*oc*/,
+ char* /*extraBuf*/,
+ int /*extraCount*/
+#endif
+);
+#endif
+
+extern void FreeOsBuffers(
+#if NeedFunctionPrototypes
+ OsCommPtr /*oc*/
+#endif
+);
+
+extern ConnectionInputPtr AllocateInputBuffer(
+#if NeedFunctionPrototypes
+ void
+#endif
+);
+
+extern ConnectionOutputPtr AllocateOutputBuffer(
+#if NeedFunctionPrototypes
+ void
+#endif
+);