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- Committer: Bazaar Package Importer
- Author(s): Brice Goglin
- Date: 2010-03-14 11:44:38 UTC
- mto: (9.1.1 sid)
- mto: This revision was merged to the branch mainline in revision 12.
- Revision ID: james.westby@ubuntu.com-20100314114438-xce9zkmf88jtlq0l
Tags: upstream-1.1.9
Import upstream version 1.1.9
- files modified:
- COPYING
added
removed
dm.c
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/* $XdotOrg: $ */
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/* $Xorg: dm.c,v 1.5 2001/02/09 02:05:40 xorgcvs Exp $ */
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/*
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Copyright 1988, 1998 The Open Group
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from The Open Group.
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*/
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/* $XFree86: xc/programs/xdm/dm.c,v 3.23 2003/09/17 05:48:32 herrb Exp $ */
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/*
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* xdm - display manager daemon
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* display manager
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*/
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# include "dm.h"
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# include "dm_auth.h"
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# include "dm_error.h"
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#include "dm.h"
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#include "dm_auth.h"
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#include "dm_error.h"
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# include <stdio.h>
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#include <stdio.h>
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#ifdef X_POSIX_C_SOURCE
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#define _POSIX_C_SOURCE X_POSIX_C_SOURCE
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#include <signal.h>
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#undef _POSIX_C_SOURCE
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#else
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#if defined(X_NOT_POSIX) || defined(_POSIX_SOURCE)
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#include <signal.h>
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#else
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#define _POSIX_SOURCE
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#include <signal.h>
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#undef _POSIX_SOURCE
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#endif
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# define _POSIX_C_SOURCE X_POSIX_C_SOURCE
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# include <signal.h>
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# undef _POSIX_C_SOURCE
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#else
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# if defined(X_NOT_POSIX) || defined(_POSIX_SOURCE)
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# include <signal.h>
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# else
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# define _POSIX_SOURCE
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# include <signal.h>
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# undef _POSIX_SOURCE
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# endif
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#endif
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#ifdef __NetBSD__
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#include <sys/param.h>
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# include <sys/param.h>
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#endif
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#ifdef USESECUREWARE
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#include <prot.h>
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# include <prot.h>
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#endif
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#ifndef sigmask
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#define sigmask(m) (1 << ((m - 1)))
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# define sigmask(m) (1 << ((m - 1)))
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#endif
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# include <sys/stat.h>
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# include <errno.h>
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# include <X11/Xfuncproto.h>
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# include <X11/Xatom.h>
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# include <stdarg.h>
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# include <stdint.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <X11/Xfuncproto.h>
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#include <X11/Xatom.h>
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#include <stdarg.h>
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#include <stdint.h>
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#ifndef F_TLOCK
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#ifndef X_NOT_POSIX
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# include <unistd.h>
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#endif
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# ifndef X_NOT_POSIX
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# include <unistd.h>
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# endif
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#endif
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#endif
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static int StorePid (void);
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static void RemovePid (void);
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static pid_t parent_pid = -1; /* PID of parent xdm process */
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}
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if (debugLevel == 0 && daemonMode)
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BecomeDaemon ();
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if (debugLevel == 0)
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InitErrorLog ();
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if (debugLevel >= 10)
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nofork_session = 1;
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/* SUPPRESS 560 */
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pidFile, oldpid);
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exit (1);
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}
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if (debugLevel == 0)
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InitErrorLog ();
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LogInfo ("Starting\n");
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if (atexit (RemovePid))
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LogError ("could not register RemovePid() with atexit()\n");
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if (nofork_session == 0) {
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/* Clean up any old Authorization files */
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#ifndef UNRELIABLE_SIGNALS
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(void) Signal (SIGCHLD, ChildNotify);
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#endif
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Debug ("startup successful; entering main loop\n");
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while (
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#ifdef XDMCP
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AnyWellKnownSockets() ||
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#endif
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}
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Debug ("Nothing left to do, exiting\n");
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LogInfo ("Exiting\n");
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exit(0);
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/*NOTREACHED*/
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}
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if (parent_pid != getpid())
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{
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/*
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/*
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* We are a child xdm process that was killed by the
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* master xdm before we were able to return from fork()
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* and remove this signal handler.
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*
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* See defect XWSog08655 for more information.
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*/
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Debug ("Child xdm caught SIGTERM before it remove that signal.\n");
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Debug ("Child xdm caught SIGTERM before it removed that signal.\n");
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(void) Signal (n, SIG_DFL);
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TerminateProcess (getpid(), SIGTERM);
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errno = olderrno;
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return;
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}
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Debug ("Shutting down entire manager\n");
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LogInfo ("Shutting down\n");
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#ifdef XDMCP
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DestroyWellKnownSockets ();
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#endif
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int olderrno = errno;
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ChildReady = 1;
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#ifdef ISC
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# ifdef ISC
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(void) Signal (SIGCHLD, ChildNotify);
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#endif
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# endif
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errno = olderrno;
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}
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#endif
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/* XXX classic System V signal race condition here with RescanNotify */
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if ((pid = wait (&status)) != -1)
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#else
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#ifndef X_NOT_POSIX
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# ifndef X_NOT_POSIX
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sigemptyset(&mask);
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sigaddset(&mask, SIGCHLD);
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sigaddset(&mask, SIGHUP);
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sigprocmask(SIG_BLOCK, &mask, &omask);
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Debug ("signals blocked\n");
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#else
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# else
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omask = sigblock (sigmask (SIGCHLD) | sigmask (SIGHUP));
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Debug ("signals blocked, mask was 0x%x\n", omask);
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#endif
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# endif
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if (!ChildReady && !Rescan)
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#ifndef X_NOT_POSIX
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# ifndef X_NOT_POSIX
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sigsuspend(&omask);
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#else
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# else
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sigpause (omask);
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#endif
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# endif
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ChildReady = 0;
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#ifndef X_NOT_POSIX
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# ifndef X_NOT_POSIX
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sigprocmask(SIG_SETMASK, &omask, (sigset_t *)NULL);
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#else
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# else
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sigsetmask (omask);
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#endif
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# endif
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while ((pid = waitpid (-1, &status, WNOHANG)) > 0)
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#endif
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{
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Time_t Time;
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time(&Time);
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Debug("time %i %i\n",Time,d->lastCrash);
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if (d->lastCrash &&
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if (d->lastCrash &&
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((Time - d->lastCrash) < XDM_BROKEN_INTERVAL)) {
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Debug("Server crash frequency too high:"
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" removing display %s\n",d->name);
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AddTimerEntropy();
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#endif
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RemoveDisplay (d);
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} else
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} else
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d->lastCrash = Time;
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}
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break;
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const char *windowpath;
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char *newwindowpath;
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unsigned long num;
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char nums[10];
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int numn;
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prop = XInternAtom(d->dpy, "XFree86_VT", False);
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if (prop == None) {
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fprintf(stderr, "no XFree86_VT atom\n");
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return;
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}
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if (XGetWindowProperty(d->dpy, DefaultRootWindow(d->dpy), prop, 0, 1,
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False, AnyPropertyType, &actualtype, &actualformat,
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if (XGetWindowProperty(d->dpy, DefaultRootWindow(d->dpy), prop, 0, 1,
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False, AnyPropertyType, &actualtype, &actualformat,
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&nitems, &bytes_after, &buf)) {
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fprintf(stderr, "no XFree86_VT property\n");
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return;
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}
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XFree(buf);
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windowpath = getenv("WINDOWPATH");
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numn = snprintf(nums, sizeof(nums), "%lu", num);
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if (!windowpath) {
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newwindowpath = malloc(numn + 1);
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sprintf(newwindowpath, "%s", nums);
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asprintf(&newwindowpath, "%lu", num);
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} else {
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newwindowpath = malloc(strlen(windowpath) + 1 + numn + 1);
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sprintf(newwindowpath, "%s:%s", windowpath, nums);
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asprintf(&newwindowpath, "%s:%lu", windowpath, num);
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}
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if (d->windowPath)
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free(d->windowPath);
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pid_t pid;
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Debug ("StartDisplay %s\n", d->name);
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LogInfo ("Starting X server on %s\n", d->name);
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LoadServerResources (d);
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if (d->displayType.location == Local)
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{
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if (lockPidFile)
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{
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#ifdef F_SETLK
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#ifndef SEEK_SET
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#define SEEK_SET 0
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#endif
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# ifndef SEEK_SET
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# define SEEK_SET 0
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# endif
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struct flock lock_data;
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lock_data.l_type = F_WRLCK;
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lock_data.l_whence = SEEK_SET;
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return -1;
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}
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#else
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#ifdef LOCK_EX
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# ifdef LOCK_EX
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if (flock (pidFd, LOCK_EX|LOCK_NB) == -1)
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{
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if (errno == EWOULDBLOCK)
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else
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return -1;
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}
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#else
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# else
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if (lockf (pidFd, F_TLOCK, 0) == -1)
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{
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if (errno == EACCES)
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else
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return -1;
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}
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#endif
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# endif
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#endif
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}
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ftruncate(pidFd, 0);
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fprintf (pidFilePtr, "%5ld\n", (long)getpid ());
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(void) fflush (pidFilePtr);
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RegisterCloseOnFork (pidFd);
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return 0;
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}
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/*
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* Remove process ID file. This function is registered with atexit().
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*/
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static void
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RemovePid (void)
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{
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Debug ("unlinking process ID file %s\n", pidFile);
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if (unlink (pidFile))
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if (errno != ENOENT)
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LogError ("cannot remove process ID file %s: %s\n", pidFile,
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_SysErrorMsg (errno));
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}
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#if 0
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void
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UnlockPidFile (void)
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{
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if (lockPidFile)
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#ifdef F_SETLK
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# ifdef F_SETLK
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{
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struct flock lock_data;
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lock_data.l_type = F_UNLCK;
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lock_data.l_start = lock_data.l_len = 0;
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(void) fcntl(pidFd, F_SETLK, &lock_data);
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}
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#else
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#ifdef F_ULOCK
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# else
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# ifdef F_ULOCK
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lockf (pidFd, F_ULOCK, 0);
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#else
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# else
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flock (pidFd, LOCK_UN);
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#endif
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#endif
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# endif
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# endif
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close (pidFd);
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fclose (pidFilePtr);
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}
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#ifndef HAS_SETPROCTITLE
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void SetTitle (char *name, ...)
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{
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#ifndef NOXDMTITLE
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# ifndef NOXDMTITLE
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char *p = Title;
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int left = TitleLen;
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char *s;
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--left;
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}
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va_end(args);
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#endif
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# endif
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}
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#endif
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