Correct file permission for jack-shm-registry POSIX shared memory segment.

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@2954 0c269be4-1314-0410-8aa9-9f06e86f4224

ChangeLog

@@ -23,15 +23,19 @@ Michael Voigt
   Jackdmp changes log
 ---------------------------
 
-2008-08-22 Stephane Letz  <letz@grame.fr>
+2008-10-02 Stephane Letz  <letz@grame.fr>
+	
+	* Correct file permission for jack-shm-registry POSIX shared memory segment.
+
+2008-09-22 Stephane Letz  <letz@grame.fr>
 	
 	* Cleanup jack_port_id_t/jack_port_t mess, should work again on 64 bits machines."
 
-2008-08-20 Stephane Letz  <letz@grame.fr>
+2008-09-20 Stephane Letz  <letz@grame.fr>
 	
 	* Michael Voigt JackAPI cleanup patch.
 
-2008-08-19 Stephane Letz  <letz@grame.fr>
+2008-09-19 Stephane Letz  <letz@grame.fr>
 	
 	* Michael Voigt JackTime cleanup patch.
 

common/shm.c

@@ -685,7 +685,7 @@ jack_create_registry (jack_shm_info_t *ri)
 {
 	/* registry must be locked */
 	int shm_fd;
-
+  
 	strncpy (registry_id, "/jack-shm-registry", sizeof (registry_id));
 
 	if ((shm_fd = shm_open (registry_id, O_RDWR|O_CREAT, 0666)) < 0) {
@@ -694,6 +694,11 @@ jack_create_registry (jack_shm_info_t *ri)
 			    strerror (errno));
 		return rc;
 	}
+ 
+        /* Previous shm_open result depends of the actual value of umask, force correct file permisssion here */
+        if (fchmod(shm_fd, 0666) < 0) {
+	    jack_error ("Cannot chmod registry size (%s)", strerror (errno));	
+        }
 
 	/* Set the desired segment size.  NOTE: the non-conformant Mac
 	 * OS X POSIX shm only allows ftruncate() on segment creation.