rrdcached: Fix permissions of the default socket.

If neither the "-l" nor the "-P" options have been given, a UNIX domain
socket at a default location is created. However, due to a missing
initialization in this case, the "permissions" field will be left at
zero (no command allowed).

This patch fixes this problem by allowing all commands on the default
socket if no "-P" option is given. -- Florian Forster

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@2152 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/src/rrd_daemon.c b/src/rrd_daemon.c
index 0586a8de7efbf82db37bd8a07ee8ef4f97bfd6cb..1a20974d2e46c848da9d12580110b7c6dac00627 100644 (file)
--- a/src/rrd_daemon.c
+++ b/src/rrd_daemon.c
@@ -2168,6 +2168,15 @@ static void socket_permission_copy (listen_socket_t *dest, /* {{{ */
   dest->permissions = src->permissions;
 } /* }}} socket_permission_copy */
 
+static void socket_permission_set_all (listen_socket_t *sock) /* {{{ */
+{
+  size_t i;
+
+  sock->permissions = 0;
+  for (i = 0; i < list_of_commands_len; i++)
+    sock->permissions |= (1 << i);
+} /* }}} void socket_permission_set_all */
+
 /* check whether commands are received in the expected context */
 static int command_check_context(listen_socket_t *sock, command_t *cmd)
 {
@@ -3131,6 +3140,10 @@ static int daemonize (void) /* {{{ */
     strncpy(default_socket.addr, RRDCACHED_DEFAULT_ADDRESS,
         sizeof(default_socket.addr) - 1);
     default_socket.addr[sizeof(default_socket.addr) - 1] = '\0';
+
+    if (default_socket.permissions == 0)
+      socket_permission_set_all (&default_socket);
+
     open_listen_socket (&default_socket);
   }
 
@@ -3275,18 +3288,7 @@ static int read_options (int argc, char **argv) /* {{{ */
         else /* if (default_socket.permissions == 0) */
         {
           /* Add permission for ALL commands to the socket. */
-          size_t i;
-          for (i = 0; i < list_of_commands_len; i++)
-          {
-            status = socket_permission_add (new, list_of_commands[i].cmd);
-            if (status != 0)
-            {
-              fprintf (stderr, "read_options: Adding permission \"%s\" to "
-                  "socket failed. This should never happen, ever! Sorry.\n",
-                  list_of_commands[i].cmd);
-              status = 4;
-            }
-          }
+          socket_permission_set_all (new);
         }
         /* }}} Done adding permissions. */
 
@@ -3573,6 +3575,7 @@ static int read_options (int argc, char **argv) /* {{{ */
             "\n"
             "Valid options are:\n"
             "  -l <address>  Socket address to listen to.\n"
+            "                Default: "RRDCACHED_DEFAULT_ADDRESS"\n"
             "  -P <perms>    Sets the permissions to assign to all following "
                             "sockets\n"
             "  -w <seconds>  Interval in which to write data.\n"