Fix incorrect handling of multiple local commands in a single read.

local.c

@@ -316,7 +316,7 @@ local_notify_all_1(struct local_socket *s)
 int
 local_read(struct local_socket *s)
 {
-    int rc;
+    int rc, n;
     char *eol;
     char reply[100] = "ok\n";
     const char *message = NULL;
@@ -336,11 +336,13 @@ local_read(struct local_socket *s)
         return rc;
     s->n += rc;
 
+    while(s->n > 0) {
         eol = memchr(s->buf, '\n', s->n);
         if(eol == NULL)
-        return 1;
+            break;
+        n = eol + 1 - s->buf;
 
-    rc = parse_config_from_string(s->buf, eol + 1 - s->buf, &message);
+        rc = parse_config_from_string(s->buf, n, &message);
         switch(rc) {
         case CONFIG_ACTION_DONE:
             break;
@@ -368,15 +370,16 @@ local_read(struct local_socket *s)
 
         if(reply[0] != '\0') {
             rc = write_timeout(s->fd, reply, strlen(reply));
-        if(rc < 0)
+            if(rc < 0) {
                 goto fail;
             }
+        }
+        if(s->n > n)
+            memmove(s->buf, s->buf + n, s->n - n);
+        s->n -= n;
+    }
 
-    if(s->n > eol + 1 - s->buf) {
-        memmove(s->buf, eol + 1, s->n - (eol + 1 - s->buf));
-        s->n -= (eol + 1 - s->buf);
-    } else {
-        s->n = 0;
+    if(s->n == 0) {
         free(s->buf);
         s->buf = NULL;
     }