531 lines
15 KiB
C
531 lines
15 KiB
C
/***********************************************************
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Copyright 1987, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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******************************************************************/
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#ifndef OS_H
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#define OS_H
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#include "misc.h"
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#include <stdarg.h>
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#define NullFID ((FID) 0)
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#define SCREEN_SAVER_ON 0
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#define SCREEN_SAVER_OFF 1
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#define SCREEN_SAVER_FORCER 2
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#define SCREEN_SAVER_CYCLE 3
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#ifndef MAX_REQUEST_SIZE
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#define MAX_REQUEST_SIZE 65535
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#endif
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#ifndef MAX_BIG_REQUEST_SIZE
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#define MAX_BIG_REQUEST_SIZE 4194303
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#endif
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typedef pointer FID;
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typedef struct _FontPathRec *FontPathPtr;
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typedef struct _NewClientRec *NewClientPtr;
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#ifndef xalloc
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#define xnfalloc(size) XNFalloc((unsigned long)(size))
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#define xnfcalloc(_num, _size) XNFcalloc((unsigned long)(_num)*(unsigned long)(_size))
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#define xnfrealloc(ptr, size) XNFrealloc((pointer)(ptr), (unsigned long)(size))
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#define xalloc(size) Xalloc((unsigned long)(size))
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#define xcalloc(_num, _size) Xcalloc((unsigned long)(_num)*(unsigned long)(_size))
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#define xrealloc(ptr, size) Xrealloc((pointer)(ptr), (unsigned long)(size))
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#define xfree(ptr) Xfree((pointer)(ptr))
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#define xstrdup(s) Xstrdup(s)
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#define xnfstrdup(s) XNFstrdup(s)
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#endif
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#include <stdio.h>
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#include <stdarg.h>
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/* have to put $(SIGNAL_DEFINES) in DEFINES in Imakefile to get this right */
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#ifdef SIGNALRETURNSINT
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#define SIGVAL int
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#else
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#define SIGVAL void
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#endif
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extern Bool OsDelayInitColors;
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extern void (*OsVendorVErrorFProc)(const char *, va_list args);
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extern int WaitForSomething(
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int* /*pClientsReady*/
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);
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extern int ReadRequestFromClient(ClientPtr /*client*/);
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extern Bool InsertFakeRequest(
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ClientPtr /*client*/,
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char* /*data*/,
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int /*count*/);
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extern void ResetCurrentRequest(ClientPtr /*client*/);
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extern void FlushAllOutput(void);
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extern void FlushIfCriticalOutputPending(void);
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extern void SetCriticalOutputPending(void);
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extern int WriteToClient(ClientPtr /*who*/, int /*count*/, char* /*buf*/);
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extern void ResetOsBuffers(void);
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extern void InitConnectionLimits(void);
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extern void NotifyParentProcess(void);
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extern void CreateWellKnownSockets(void);
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extern void ResetWellKnownSockets(void);
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extern void CloseWellKnownConnections(void);
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extern XID AuthorizationIDOfClient(ClientPtr /*client*/);
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extern char *ClientAuthorized(
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ClientPtr /*client*/,
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unsigned int /*proto_n*/,
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char* /*auth_proto*/,
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unsigned int /*string_n*/,
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char* /*auth_string*/);
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extern Bool EstablishNewConnections(
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ClientPtr /*clientUnused*/,
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pointer /*closure*/);
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extern void CheckConnections(void);
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extern void CloseDownConnection(ClientPtr /*client*/);
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extern void AddGeneralSocket(int /*fd*/);
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extern void RemoveGeneralSocket(int /*fd*/);
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extern void AddEnabledDevice(int /*fd*/);
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extern void RemoveEnabledDevice(int /*fd*/);
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extern int OnlyListenToOneClient(ClientPtr /*client*/);
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extern void ListenToAllClients(void);
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extern void IgnoreClient(ClientPtr /*client*/);
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extern void AttendClient(ClientPtr /*client*/);
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extern void MakeClientGrabImpervious(ClientPtr /*client*/);
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extern void MakeClientGrabPervious(ClientPtr /*client*/);
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extern void AvailableClientInput(ClientPtr /* client */);
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extern CARD32 GetTimeInMillis(void);
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extern void AdjustWaitForDelay(
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pointer /*waitTime*/,
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unsigned long /*newdelay*/);
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typedef struct _OsTimerRec *OsTimerPtr;
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typedef CARD32 (*OsTimerCallback)(
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OsTimerPtr /* timer */,
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CARD32 /* time */,
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pointer /* arg */);
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extern void TimerInit(void);
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extern Bool TimerForce(OsTimerPtr /* timer */);
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#define TimerAbsolute (1<<0)
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#define TimerForceOld (1<<1)
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extern OsTimerPtr TimerSet(
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OsTimerPtr /* timer */,
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int /* flags */,
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CARD32 /* millis */,
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OsTimerCallback /* func */,
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pointer /* arg */);
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extern void TimerCheck(void);
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extern void TimerCancel(OsTimerPtr /* pTimer */);
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extern void TimerFree(OsTimerPtr /* pTimer */);
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extern void SetScreenSaverTimer(void);
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extern void FreeScreenSaverTimer(void);
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extern SIGVAL AutoResetServer(int /*sig*/);
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extern SIGVAL GiveUp(int /*sig*/);
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extern void UseMsg(void);
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extern void InitGlobals(void);
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extern void ProcessCommandLine(int /*argc*/, char* /*argv*/[]);
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extern int set_font_authorizations(
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char ** /* authorizations */,
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int * /*authlen */,
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pointer /* client */);
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#ifndef _HAVE_XALLOC_DECLS
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#define _HAVE_XALLOC_DECLS
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extern pointer Xalloc(unsigned long /*amount*/);
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extern pointer Xcalloc(unsigned long /*amount*/);
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extern pointer Xrealloc(pointer /*ptr*/, unsigned long /*amount*/);
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extern void Xfree(pointer /*ptr*/);
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#endif
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extern pointer XNFalloc(unsigned long /*amount*/);
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extern pointer XNFcalloc(unsigned long /*amount*/);
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extern pointer XNFrealloc(pointer /*ptr*/, unsigned long /*amount*/);
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extern void OsInitAllocator(void);
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extern char *Xstrdup(const char *s);
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extern char *XNFstrdup(const char *s);
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extern char *Xprintf(const char *fmt, ...);
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extern char *Xvprintf(const char *fmt, va_list va);
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extern char *XNFprintf(const char *fmt, ...);
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extern char *XNFvprintf(const char *fmt, va_list va);
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typedef SIGVAL (*OsSigHandlerPtr)(int /* sig */);
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extern OsSigHandlerPtr OsSignal(int /* sig */, OsSigHandlerPtr /* handler */);
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extern int auditTrailLevel;
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#ifdef SERVER_LOCK
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extern void LockServer(void);
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extern void UnlockServer(void);
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#ifdef X_PRIVSEP
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extern int ChownLock(uid_t, gid_t);
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#endif
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#endif
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extern int OsLookupColor(
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int /*screen*/,
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char * /*name*/,
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unsigned /*len*/,
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unsigned short * /*pred*/,
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unsigned short * /*pgreen*/,
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unsigned short * /*pblue*/);
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extern void OsInit(void);
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extern void OsCleanup(Bool);
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extern void OsVendorFatalError(void);
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extern void OsVendorInit(void);
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extern int OsInitColors(void);
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void OsBlockSignals (void);
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void OsReleaseSignals (void);
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#if !defined(WIN32)
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extern int System(char *);
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extern pointer Popen(char *, char *);
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extern int Pclose(pointer);
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extern pointer Fopen(char *, char *);
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extern int Fclose(pointer);
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#else
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#define System(a) system(a)
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#define Popen(a,b) popen(a,b)
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#define Pclose(a) pclose(a)
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#define Fopen(a,b) fopen(a,b)
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#define Fclose(a) fclose(a)
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#endif
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extern void CheckUserParameters(int argc, char **argv, char **envp);
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extern void CheckUserAuthorization(void);
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extern int AddHost(
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ClientPtr /*client*/,
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int /*family*/,
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unsigned /*length*/,
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pointer /*pAddr*/);
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extern Bool ForEachHostInFamily (
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int /*family*/,
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Bool (* /*func*/ )(
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unsigned char * /* addr */,
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short /* len */,
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pointer /* closure */),
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pointer /*closure*/);
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extern int RemoveHost(
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ClientPtr /*client*/,
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int /*family*/,
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unsigned /*length*/,
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pointer /*pAddr*/);
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extern int GetHosts(
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pointer * /*data*/,
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int * /*pnHosts*/,
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int * /*pLen*/,
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BOOL * /*pEnabled*/);
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typedef struct sockaddr * sockaddrPtr;
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extern int InvalidHost(sockaddrPtr /*saddr*/, int /*len*/, ClientPtr client);
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extern int LocalClient(ClientPtr /* client */);
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extern int LocalClientCred(ClientPtr, int *, int *);
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#define LCC_UID_SET (1 << 0)
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#define LCC_GID_SET (1 << 1)
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#define LCC_PID_SET (1 << 2)
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#define LCC_ZID_SET (1 << 3)
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typedef struct {
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int fieldsSet; /* Bit mask of fields set */
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int euid; /* Effective uid */
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int egid; /* Primary effective group id */
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int nSuppGids; /* Number of supplementary group ids */
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int *pSuppGids; /* Array of supplementary group ids */
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int pid; /* Process id */
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int zoneid; /* Only set on Solaris 10 & later */
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} LocalClientCredRec;
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extern int GetLocalClientCreds(ClientPtr, LocalClientCredRec **);
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extern void FreeLocalClientCreds(LocalClientCredRec *);
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extern int ChangeAccessControl(ClientPtr /*client*/, int /*fEnabled*/);
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extern int GetAccessControl(void);
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extern void AddLocalHosts(void);
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extern void ResetHosts(char *display);
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extern void EnableLocalHost(void);
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extern void DisableLocalHost(void);
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extern void AccessUsingXdmcp(void);
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extern void DefineSelf(int /*fd*/);
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extern void AugmentSelf(pointer /*from*/, int /*len*/);
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extern void InitAuthorization(char * /*filename*/);
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/* extern int LoadAuthorization(void); */
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extern void RegisterAuthorizations(void);
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extern int AuthorizationFromID (
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XID id,
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unsigned short *name_lenp,
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char **namep,
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unsigned short *data_lenp,
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char **datap);
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extern XID CheckAuthorization(
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unsigned int /*namelength*/,
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char * /*name*/,
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unsigned int /*datalength*/,
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char * /*data*/,
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ClientPtr /*client*/,
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char ** /*reason*/
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);
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extern void ResetAuthorization(void);
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extern int RemoveAuthorization (
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unsigned short name_length,
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char *name,
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unsigned short data_length,
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char *data);
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extern int AddAuthorization(
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unsigned int /*name_length*/,
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char * /*name*/,
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unsigned int /*data_length*/,
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char * /*data*/);
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extern XID GenerateAuthorization(
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unsigned int /* name_length */,
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char * /* name */,
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unsigned int /* data_length */,
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char * /* data */,
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unsigned int * /* data_length_return */,
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char ** /* data_return */);
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#ifdef COMMANDLINE_CHALLENGED_OPERATING_SYSTEMS
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extern void ExpandCommandLine(int * /*pargc*/, char *** /*pargv*/);
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#endif
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extern void ddxInitGlobals(void);
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extern int ddxProcessArgument(int /*argc*/, char * /*argv*/ [], int /*i*/);
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extern void ddxUseMsg(void);
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/* int ReqLen(xReq *req, ClientPtr client)
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* Given a pointer to a *complete* request, return its length in bytes.
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* Note that if the request is a big request (as defined in the Big
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* Requests extension), the macro lies by returning 4 less than the
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* length that it actually occupies in the request buffer. This is so you
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* can blindly compare the length with the various sz_<request> constants
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* in Xproto.h without having to know/care about big requests.
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*/
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#define ReqLen(_pxReq, _client) \
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((_pxReq->length ? \
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(_client->swapped ? lswaps(_pxReq->length) : _pxReq->length) \
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: ((_client->swapped ? \
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lswapl(((CARD32*)_pxReq)[1]) : ((CARD32*)_pxReq)[1])-1) \
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) << 2)
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/* otherReqTypePtr CastxReq(xReq *req, otherReqTypePtr)
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* Cast the given request to one of type otherReqTypePtr to access
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* fields beyond the length field.
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*/
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#define CastxReq(_pxReq, otherReqTypePtr) \
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(_pxReq->length ? (otherReqTypePtr)_pxReq \
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: (otherReqTypePtr)(((CARD32*)_pxReq)+1))
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/* stuff for SkippedRequestsCallback */
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extern CallbackListPtr SkippedRequestsCallback;
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typedef struct {
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xReqPtr req;
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ClientPtr client;
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int numskipped;
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} SkippedRequestInfoRec;
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/* stuff for ReplyCallback */
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extern CallbackListPtr ReplyCallback;
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typedef struct {
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ClientPtr client;
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pointer replyData;
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unsigned long dataLenBytes;
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unsigned long bytesRemaining;
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Bool startOfReply;
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} ReplyInfoRec;
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/* stuff for FlushCallback */
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extern CallbackListPtr FlushCallback;
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extern void AbortDDX(void);
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extern void ddxGiveUp(void);
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extern int TimeSinceLastInputEvent(void);
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/* Logging. */
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typedef enum _LogParameter {
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XLOG_FLUSH,
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XLOG_SYNC,
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XLOG_VERBOSITY,
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XLOG_FILE_VERBOSITY
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} LogParameter;
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/* Flags for log messages. */
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typedef enum {
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X_PROBED, /* Value was probed */
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X_CONFIG, /* Value was given in the config file */
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X_DEFAULT, /* Value is a default */
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X_CMDLINE, /* Value was given on the command line */
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X_NOTICE, /* Notice */
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X_ERROR, /* Error message */
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X_WARNING, /* Warning message */
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X_INFO, /* Informational message */
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X_NONE, /* No prefix */
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X_NOT_IMPLEMENTED, /* Not implemented */
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X_UNKNOWN = -1 /* unknown -- this must always be last */
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} MessageType;
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/* XXX Need to check which GCC versions have the format(printf) attribute. */
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#if defined(__GNUC__) && \
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((__GNUC__ > 2) || ((__GNUC__ == 2) && (__GNUC_MINOR__ > 4)))
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#define _printf_attribute(a,b) __attribute((format(__printf__,a,b)))
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#else
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#define _printf_attribute(a,b) /**/
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#endif
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extern const char *LogInit(const char *fname, const char *backup);
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extern void LogClose(void);
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extern Bool LogSetParameter(LogParameter param, int value);
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extern void LogVWrite(int verb, const char *f, va_list args);
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extern void LogWrite(int verb, const char *f, ...) _printf_attribute(2,3);
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extern void LogVMessageVerb(MessageType type, int verb, const char *format,
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va_list args);
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extern void LogMessageVerb(MessageType type, int verb, const char *format,
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...) _printf_attribute(3,4);
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extern void LogMessage(MessageType type, const char *format, ...)
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_printf_attribute(2,3);
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extern void FreeAuditTimer(void);
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extern void AuditF(const char *f, ...) _printf_attribute(1,2);
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extern void VAuditF(const char *f, va_list args);
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extern void FatalError(const char *f, ...) _printf_attribute(1,2)
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#if defined(__GNUC__) && \
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((__GNUC__ > 2) || ((__GNUC__ == 2) && (__GNUC_MINOR__ > 4)))
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__attribute((noreturn))
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#endif
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;
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#ifdef DEBUG
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#define DebugF ErrorF
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#else
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#define DebugF(...) /* */
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#endif
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extern void VErrorF(const char *f, va_list args);
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extern void ErrorF(const char *f, ...) _printf_attribute(1,2);
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extern void Error(char *str);
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extern void LogPrintMarkers(void);
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#endif /* OS_H */
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