bugfix: core dump when ketama variable value is empty

flygoast · Sep 30, 2013 · 476363c · 476363c
1 parent 33e37a4
commit 476363c
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/ngx_http_upstream_ketama_chash_module.c b/ngx_http_upstream_ketama_chash_module.c
@@ -481,7 +481,8 @@ ngx_http_upstream_init_ketama_chash_peer(ngx_http_request_t *r,
 
     if (!ukchpd->peers->single) {
         ukchpd->point = ngx_crc32_short(val.data, val.len);
-        ukchpd->conti_index = ngx_http_upstream_get_ketama_chash_index(ukchpd);
+        ukchpd->conti_index = (ukchpd->point == 0) ? 0 :
+                              ngx_http_upstream_get_ketama_chash_index(ukchpd);
     }
 
     return NGX_OK;