diff --git a/lib/communication.c b/lib/communication.c
index 6abd9f2..12a9c93 100644
--- a/lib/communication.c
+++ b/lib/communication.c
@@ -6,7 +6,7 @@ int file_open (FILE **f, const char *path, const char *mode)
 {
     printf ("opening %s\n", path);
     if (*f != NULL) {
-        printf ("f != NULL : %p\n", (void*) *f);
+        // printf ("f != NULL : %p\n", (void*) *f);
         if (file_close (*f)) {
             return ER_FILE_CLOSE;
         }
@@ -16,7 +16,7 @@ int file_open (FILE **f, const char *path, const char *mode)
         fprintf (stderr, "\033[31mnot opened %s\033[00m\n", path);
         return ER_FILE_OPEN;
     }
-    printf ("opened : %ld\n", (long) *f);
+    // printf ("opened : %ld\n", (long) *f);
 
     return 0;
 }
@@ -24,11 +24,11 @@ int file_open (FILE **f, const char *path, const char *mode)
 int file_close (FILE *f)
 {
     if (f != 0) {
-        printf ("before fclosing\n");
+        // printf ("before fclosing\n");
         if (fclose (f)) {
             return ER_FILE_CLOSE;
         }
-        printf ("after fclosing\n");
+        // printf ("after fclosing\n");
     }
     return 0;
 }
@@ -48,16 +48,21 @@ int file_read (FILE *f, char **buf, size_t *msize) {
         }
     }
 
-    *msize = fread (*buf, *msize, 1, f);
-    if (*msize == 0) {
+    int ret = 0;
+
+    ret = fread (*buf, *msize, 1, f);
+    if (ret < 0) {
         fprintf (stderr, "err can't read a file\n");
-        if (ER_FILE_CLOSE == file_close (f)) {
-            fprintf (stderr, "err closing the file\n");
-            return ER_FILE_CLOSE;
-        }
+        ret = file_close (f);
+        if (ret != 0)
+            return ret;
         return ER_FILE_READ;
     }
 
+    ret = file_close (f);
+    if (ret != 0)
+        return ret;
+
     return 0;
 }
 
@@ -260,16 +265,13 @@ int srv_read_cb (struct process *p, char ** buf, size_t * msize
         return ER_FILE_OPEN;
     }
 
+    int ret = 0;
+
     if (cb != NULL) {
-        int ret = (*cb) (p->out, buf, msize);
-        if (ret != 0)
-            return ret;
+        ret = (*cb) (p->out, buf, msize);
     }
     else {
-        int ret = file_read (p->out, buf, msize);
-        if (ret != 0) {
-            return ret;
-        }
+        ret = file_read (p->out, buf, msize);
     }
     // printf ("DEBUG read, size %ld : %s\n", *msize, *buf);
 
@@ -279,7 +281,7 @@ int srv_read_cb (struct process *p, char ** buf, size_t * msize
     }
     p->out = NULL;
 
-    return 0;
+    return ret;
 }
 
 int srv_read (struct process *p, char ** buf, size_t * msize)
@@ -289,10 +291,11 @@ int srv_read (struct process *p, char ** buf, size_t * msize)
         return ER_FILE_OPEN;
     }
 
-    int ret = file_read (p->out, buf, msize);
+    int ret = 0;
+
+    ret = file_read (p->out, buf, msize);
     if (ret != 0) {
         p->out = NULL;
-        return ret;
     }
 
     // printf ("DEBUG read, size %ld : %s\n", *msize, buf);
@@ -300,11 +303,11 @@ int srv_read (struct process *p, char ** buf, size_t * msize)
     if (ER_FILE_CLOSE == file_close (p->out)) {
         fprintf (stderr, "err closing the file %s\n", p->path_out);
         p->out = NULL;
-        return ER_FILE_CLOSE;
+        ret = ER_FILE_CLOSE;
     }
     p->out = NULL;
 
-    return 0;
+    return ret;
 }
 
 int srv_write (struct process *p, char * buf, size_t msize)
@@ -455,20 +458,18 @@ int app_read_cb (struct process *p, char ** buf, size_t * msize
         return 1;
     }
 
+    int ret = 0;
+
     if (cb != NULL) {
-        int ret = (*cb) (p->in, buf, msize);
-        if (ret != 0)
-            return ret;
+        ret = (*cb) (p->in, buf, msize);
     }
     else {
-        int ret = file_read (p->in, buf, msize);
+        ret = file_read (p->in, buf, msize);
         if (ret != 0) {
             p->in = NULL;
-            return ret;
         }
     }
 
-
     if (ER_FILE_CLOSE == file_close (p->in)) {
         fprintf (stderr, "err closing the file %s\n", p->path_in);
     }
diff --git a/lib/pubsubd.c b/lib/pubsubd.c
index 5fce9c7..034fd38 100644
--- a/lib/pubsubd.c
+++ b/lib/pubsubd.c
@@ -390,6 +390,8 @@ int pubsubd_get_new_process (struct service *srv, struct app_list_elm *ale
     char chan[BUFSIZ];
     memset (chan, 0, BUFSIZ);
 
+    printf ("INIT: %s\n", buf);
+
     for (str = buf, i = 1; ; str = NULL, i++) {
         token = strtok_r(str, " ", &saveptr);
         if (token == NULL)
@@ -417,7 +419,7 @@ int pubsubd_get_new_process (struct service *srv, struct app_list_elm *ale
             case 5 : {
                          if (ale->action != PUBSUB_QUIT)
                              memcpy (chan, token, (strlen (token) < BUFSIZ) ?
-                                     strlen (token) : BUFSIZ);
+                                     strlen (token) -1 : BUFSIZ);
                          break;
                      }
         }
@@ -465,6 +467,7 @@ int pubsubd_get_new_process (struct service *srv, struct app_list_elm *ale
     return 0;
 }
 
+#if 0
 // TODO CBOR
 int pubsubd_msg_read_cb (FILE *f, char ** buf, size_t * msize)
 {
@@ -550,6 +553,8 @@ int pubsubd_msg_read_cb (FILE *f, char ** buf, size_t * msize)
     return 0;
 }
 
+#endif
+
 // alh from the channel, message to send
 void pubsubd_msg_send (const struct app_list_head *alh, const struct pubsub_msg * m)
 {
@@ -570,14 +575,8 @@ void pubsubd_msg_send (const struct app_list_head *alh, const struct pubsub_msg
 
 void pubsubd_msg_print (const struct pubsub_msg *msg)
 {
-    if (msg == NULL) {
-        return;
-    }
-
-    printf ("\t\t\033[36mMessage\033[00m\n");
-    printf ("\t\ttype %d\n", msg->type);
-    printf ("\t\tchan %s\n", msg->chan);
-    printf ("\t\tdata %s\n", msg->data);
+    printf ("msg: type=%d chan=%s, data=%s\n"
+            , msg->type, msg->chan, msg->data);
 }
 
 void pubsubd_msg_recv (struct process *p, struct pubsub_msg *m)
@@ -585,7 +584,11 @@ void pubsubd_msg_recv (struct process *p, struct pubsub_msg *m)
     // read the message from the process
     size_t mlen = 0;
     char *buf = NULL;
+#if 0
     srv_read_cb (p, &buf, &mlen, pubsubd_msg_read_cb);
+#else
+    srv_read (p, &buf, &mlen);
+#endif
 
     pubsubd_msg_unserialize (m, buf, mlen);
 
@@ -695,7 +698,11 @@ void pubsub_msg_recv (struct process *p, struct pubsub_msg * m)
     // read the message from the process
     size_t mlen = 0;
     char *buf = NULL;
+#if 0
     app_read_cb (p, &buf, &mlen, pubsubd_msg_read_cb);
+#else
+    app_read_cb (p, &buf, &mlen, NULL);
+#endif
 
     pubsubd_msg_unserialize (m, buf, mlen);
 
diff --git a/pubsub/Makefile b/pubsub/Makefile
index 332cf7c..10ac542 100644
--- a/pubsub/Makefile
+++ b/pubsub/Makefile
@@ -19,7 +19,7 @@ $(TESTS):
 	valgrind --show-leak-kinds=all --leak-check=full -v --track-origins=yes ./$(basename $@)
 
 clean:
-	@-rm $(OBJECTS)
+	@-rm $(OBJECTS) *.o
 
 mrproper: clean
 	@-rm $(EXEC)
diff --git a/pubsub/msg-unserialize.c b/pubsub/msg-unserialize.c
index 8596ebe..a4dad4f 100644
--- a/pubsub/msg-unserialize.c
+++ b/pubsub/msg-unserialize.c
@@ -13,13 +13,6 @@ void usage (char **argv)
     printf ( "usage: cat msg | %s\n", argv[0]);
 }
 
-void msg_print (struct pubsub_msg *msg) {
-    printf ("msg: type=%d chan=%.*s, data=%.*s\n"
-            , msg->type
-            , msg->chanlen, msg->chan
-            , msg->datalen, msg->data);
-}
-
 int
 main(int argc, char **argv)
 {
@@ -36,7 +29,7 @@ main(int argc, char **argv)
 
     struct pubsub_msg msg;
     pubsubd_msg_unserialize (&msg, data, len);
-    msg_print (&msg);
+    pubsubd_msg_print (&msg);
     pubsubd_msg_free (&msg);
 
     return EXIT_SUCCESS;
diff --git a/pubsub/pubsub-test-send-params.c b/pubsub/pubsub-test-send-params.c
index bfbb9fc..7fcfa0d 100644
--- a/pubsub/pubsub-test-send-params.c
+++ b/pubsub/pubsub-test-send-params.c
@@ -41,19 +41,26 @@ void sim_connection (int argc, char **argv, char **env, pid_t pid, int index, in
     struct pubsub_msg m;
     memset (&m, 0, sizeof (struct pubsub_msg));
 
-    // first message, "coucou"
-    m.type = PUBSUB_TYPE_INFO;
-    m.chan = malloc (strlen (chan) + 1);
-    memset (m.chan, 0, strlen (chan) + 1);
-    m.chan[strlen (chan)] = '\0';
-    m.chanlen = strlen (chan);
-    m.data = malloc (strlen (MYMESSAGE) + 1);
-    memset (m.data, 0, strlen (MYMESSAGE) + 1);
-    strncpy ((char *) m.data, MYMESSAGE, strlen (MYMESSAGE) + 1);
-    m.datalen = strlen (MYMESSAGE);
+    if (strcmp (cmd, "pub") == 0) {
+        // first message, "coucou"
+        m.type = PUBSUB_TYPE_MESSAGE;
+        m.chan = malloc (strlen (chan) + 1);
+        memset (m.chan, 0, strlen (chan) + 1);
+        m.chan[strlen (chan)] = '\0';
+        m.chanlen = strlen (chan);
 
-    printf ("send message\n");
-    pubsub_msg_send (&p, &m);
+        m.data = malloc (strlen (MYMESSAGE) + 1);
+        memset (m.data, 0, strlen (MYMESSAGE) + 1);
+        strncpy ((char *) m.data, MYMESSAGE, strlen (MYMESSAGE) + 1);
+        m.datalen = strlen (MYMESSAGE);
+
+        printf ("send message\n");
+        pubsub_msg_send (&p, &m);
+    }
+    else {
+        pubsub_msg_recv (&p, &m);
+        pubsubd_msg_print (&m);
+    }
 
     // free everything
     pubsubd_msg_free (&m);
diff --git a/pubsub/pubsubd.c b/pubsub/pubsubd.c
index cfff9e2..21e9bad 100644
--- a/pubsub/pubsubd.c
+++ b/pubsub/pubsubd.c
@@ -23,13 +23,36 @@ void * pubsubd_worker_thread (void *params)
         return NULL;
     }
 
+    while (1) {
+        struct pubsub_msg m;
+        memset (&m, 0, sizeof (struct pubsub_msg));
+
+        sleep (5); // TODO DEBUG
+        printf ("MESSAGE : ");
+        pubsubd_msg_recv (wp->ale->p, &m);
+
+        pubsubd_msg_print (&m);
+
+        if (m.type == PUBSUB_TYPE_DISCONNECT) {
+            if ( 0 != pubsubd_subscriber_del (wp->chan->alh, wp->ale)) {
+                fprintf (stderr, "err : subscriber not registered\n");
+            }
+            break;
+        }
+        else {
+            struct channel *chan = pubsubd_channel_get (wp->chans, wp->chan);
+            pubsubd_msg_send (chan->alh, &m);
+        }
+    }
+
+#if 0
     while (1) {
         // each chan has a list of subscribers
         // someone who only push a msg doesn't need to be registered
-        if (wp->ale->action == PUBSUB_BOTH || wp->ale->action == PUBSUB_PUB) {
+        // if (wp->ale->action == PUBSUB_BOTH || wp->ale->action == PUBSUB_PUB) {
+        if (wp->ale->action == PUBSUB_PUB) {
             // publish a message
-            printf ("publish or publish and subscribe to chan %s\n"
-                    , wp->chan->chan);
+            printf ("publish to chan %s\n", wp->chan->chan);
 
             struct pubsub_msg m;
             memset (&m, 0, sizeof (struct pubsub_msg));
@@ -65,6 +88,7 @@ void * pubsubd_worker_thread (void *params)
             break;
         }
     }
+#endif
 
     pubsubd_app_list_elm_free (wp->ale);