Catch stat() as well as __xstat()

F35 and Centos9 seem to have reverted back to an actual stat()
call rather than a wrapper around __xstat(), so trap both just
in case.

Other small fixes

tests/ipc_sock.test

@@ -7,7 +7,7 @@
 #
 if [ "`uname -s`" = "Linux" ]
 then
-  if [ -f `pwd`/.libs/libstatwrapper.so ]
+  if [ -f `pwd`/.libs/libstat_wrapper.so ]
   then
     export LD_PRELOAD=`pwd`/.libs/libstat_wrapper.so
   else

tests/libstat_wrapper.c

@@ -11,6 +11,7 @@
 #include <gnu/lib-names.h>
 #endif
 
+// __xstat for ealier libc
 int __xstat(int __ver, const char *__filename, struct stat *__stat_buf)
 {
 #if defined(QB_LINUX) || defined(QB_CYGWIN)
@@ -25,6 +26,7 @@ int __xstat(int __ver, const char *__filename, struct stat *__stat_buf)
 	}
 
 	if (strcmp(__filename, FORCESOCKETSFILE) == 0) {
+		fprintf(stderr, "__xstat called for %s\n", __filename);
 		return 0; /* it exists! */
 	}
 
@@ -33,3 +35,28 @@ int __xstat(int __ver, const char *__filename, struct stat *__stat_buf)
 	return -1; /* Error in the unlikely event we get called on *BSD* */
 #endif
 }
+
+// Stat for F35 and later
+int stat(const char *__filename, struct stat *__stat_buf)
+{
+#if defined(QB_LINUX) || defined(QB_CYGWIN)
+	static int opened = 0;
+	static void *dlhandle;
+	static int (*real_stat)(const char *__filename, void *__stat_buf);
+
+	if (!opened) {
+		dlhandle = dlopen(LIBC_SO, RTLD_NOW);
+		real_stat = dlsym(dlhandle, "stat");
+		opened = 1;
+	}
+
+	if (strcmp(__filename, FORCESOCKETSFILE) == 0) {
+		fprintf(stderr, "stat called for %s\n", __filename);
+		return 0; /* it exists! */
+	}
+
+	return real_stat(__filename, __stat_buf);
+#else
+	return -1; /* Error in the unlikely event we get called on *BSD* */
+#endif
+}