1 files changed, 30 insertions, 15 deletions

diff --git a/xorg-server/os/utils.c b/xorg-server/os/utils.c
index 3718b170c..79cca1a3a 100644
--- a/xorg-server/os/utils.c
+++ b/xorg-server/os/utils.c
@@ -217,6 +217,9 @@ static char *dev_tty_from_init = NULL;	/* since we need to parse it anyway */
 OsSigHandlerPtr
 OsSignal(int sig, OsSigHandlerPtr handler)
 {
+#ifdef X_NOT_POSIX
+    return signal(sig, handler);
+#else
     struct sigaction act, oact;
 
     sigemptyset(&act.sa_mask);
@@ -227,6 +230,7 @@ OsSignal(int sig, OsSigHandlerPtr handler)
     if (sigaction(sig, &act, &oact))
       perror("sigaction");
     return oact.sa_handler;
+#endif
 }
 
 /*
@@ -252,7 +256,7 @@ OsSignal(int sig, OsSigHandlerPtr handler)
 #endif
 
 static Bool StillLocking = FALSE;
-static char LockFile[PATH_MAX];
+static char szLockFile[PATH_MAX];
 static Bool nolock = FALSE;
 
 /*
@@ -264,26 +268,34 @@ static Bool nolock = FALSE;
 void
 LockServer(void)
 {
+#if defined(WIN32) && !defined(__CYGWIN__)
+  char MutexName[100];
+  sprintf(MutexName, "Global\\VcXsrv_Mutex_%d\n", getpid());
+  if (!CreateMutex(NULL,TRUE,MutexName) || GetLastError()== ERROR_ALREADY_EXISTS)
+  {
+    FatalError("Server is already active for display %d\n", atoi(display));
+  }
+#else
+  char port[20];
   char tmp[PATH_MAX], pid_str[12];
   int lfd, i, haslock, l_pid, t;
   char *tmppath = NULL;
   int len;
-  char port[20];
 
   if (nolock) return;
   /*
    * Path names
    */
   tmppath = LOCK_DIR;
-
   sprintf(port, "%d", atoi(display));
+
   len = strlen(LOCK_PREFIX) > strlen(LOCK_TMP_PREFIX) ? strlen(LOCK_PREFIX) :
 						strlen(LOCK_TMP_PREFIX);
   len += strlen(tmppath) + strlen(port) + strlen(LOCK_SUFFIX) + 1;
-  if (len > sizeof(LockFile))
+  if (len > sizeof(szLockFile))
     FatalError("Display name `%s' is too long\n", port);
   (void)sprintf(tmp, "%s" LOCK_TMP_PREFIX "%s" LOCK_SUFFIX, tmppath, port);
-  (void)sprintf(LockFile, "%s" LOCK_PREFIX "%s" LOCK_SUFFIX, tmppath, port);
+  (void)sprintf(szLockFile, "%s" LOCK_PREFIX "%s" LOCK_SUFFIX, tmppath, port);
 
   /*
    * Create a temporary file containing our PID.  Attempt three times
@@ -325,7 +337,7 @@ LockServer(void)
   i = 0;
   haslock = 0;
   while ((!haslock) && (i++ < 3)) {
-    haslock = (link(tmp,LockFile) == 0);
+    haslock = (link(tmp,szLockFile) == 0);
     if (haslock) {
       /*
        * We're done.
@@ -336,17 +348,17 @@ LockServer(void)
       /*
        * Read the pid from the existing file
        */
-      lfd = open(LockFile, O_RDONLY);
+      lfd = open(szLockFile, O_RDONLY);
       if (lfd < 0) {
         unlink(tmp);
-        FatalError("Can't read lock file %s\n", LockFile);
+        FatalError("Can't read lock file %s\n", szLockFile);
       }
       pid_str[0] = '\0';
       if (read(lfd, pid_str, 11) != 11) {
         /*
          * Bogus lock file.
          */
-        unlink(LockFile);
+        unlink(szLockFile);
         close(lfd);
         continue;
       }
@@ -363,7 +375,7 @@ LockServer(void)
         /*
          * Stale lock file.
          */
-        unlink(LockFile);
+        unlink(szLockFile);
         continue;
       }
       else if (((t < 0) && (errno == EPERM)) || (t == 0)) {
@@ -373,14 +385,15 @@ LockServer(void)
         unlink(tmp);
 	FatalError("Server is already active for display %s\n%s %s\n%s\n",
 		   port, "\tIf this server is no longer running, remove",
-		   LockFile, "\tand start again.");
+		   szLockFile, "\tand start again.");
       }
     }
   }
   unlink(tmp);
   if (!haslock)
-    FatalError("Could not create server lock file: %s\n", LockFile);
+    FatalError("Could not create server lock file: %s\n", szLockFile);
   StillLocking = FALSE;
+#endif
 }
 
 /*
@@ -394,7 +407,7 @@ UnlockServer(void)
 
   if (!StillLocking){
 
-  (void) unlink(LockFile);
+  (void) unlink(szLockFile);
   }
 }
 
@@ -1185,7 +1198,7 @@ XNFstrdup(const char *s)
 }
 
 
-#ifdef SIGVTALRM
+#if defined(SIGVTALRM) && !defined(__CYGWIN__)
 #define SMART_SCHEDULE_POSSIBLE
 #endif
 
@@ -1623,6 +1636,7 @@ Fclose(pointer iop)
  */
 
 /* Consider LD* variables insecure? */
+#ifndef _MSC_VER
 #ifndef REMOVE_ENV_LD
 #define REMOVE_ENV_LD 1
 #endif
@@ -1631,6 +1645,7 @@ Fclose(pointer iop)
 #ifndef REMOVE_LONG_ENV
 #define REMOVE_LONG_ENV 1
 #endif
+#endif
 
 /*
  * Disallow stdout or stderr as pipes?  It's possible to block the X server
@@ -1661,7 +1676,7 @@ Fclose(pointer iop)
 #endif
 
 #define MAX_ARG_LENGTH          128
-#define MAX_ENV_LENGTH          256
+#define MAX_ENV_LENGTH          2048
 #define MAX_ENV_PATH_LENGTH     2048	/* Limit for *PATH and TERMCAP */
 
 #if USE_ISPRINT