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Diffstat (limited to 'xorg-server/os/utils.c')
-rw-r--r--xorg-server/os/utils.c45
1 files changed, 30 insertions, 15 deletions
diff --git a/xorg-server/os/utils.c b/xorg-server/os/utils.c
index 5a5a20374..97a920990 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);
}
}
@@ -1178,7 +1191,7 @@ XNFstrdup(const char *s)
}
-#ifdef SIGVTALRM
+#if defined(SIGVTALRM) && !defined(__CYGWIN__)
#define SMART_SCHEDULE_POSSIBLE
#endif
@@ -1628,6 +1641,7 @@ Fclose(pointer iop)
*/
/* Consider LD* variables insecure? */
+#ifndef _MSC_VER
#ifndef REMOVE_ENV_LD
#define REMOVE_ENV_LD 1
#endif
@@ -1636,6 +1650,7 @@ 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
@@ -1666,7 +1681,7 @@ 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