From: Maxim Dounin <mdounin@mdounin.ru>
Date: Sun, 5 Feb 2012 19:27:18 +0000 (+0000)
Subject: Merge of r4405:
X-Git-Tag: release-1.0.12~5
X-Git-Url: http://www.kaiwu.me/postgresql/commit/?a=commitdiff_plain;h=915bc544030472d2516a50d317afd82bccb022e1;p=nginx.git

Merge of r4405:

Fixed division by zero exception in ngx_hash_init().

The ngx_hash_init() function did not expect call with zero elements count,
which caused FPE error on configs with an empty "types" block in http context
and "types_hash_max_size" > 10000.
---

diff --git a/src/core/ngx_hash.c b/src/core/ngx_hash.c
index 0c7285202..74d89b8b9 100644
--- a/src/core/ngx_hash.c
+++ b/src/core/ngx_hash.c
@@ -277,7 +277,7 @@ ngx_hash_init(ngx_hash_init_t *hinit, ngx_hash_key_t *names, ngx_uint_t nelts)
     start = nelts / (bucket_size / (2 * sizeof(void *)));
     start = start ? start : 1;
 
-    if (hinit->max_size > 10000 && hinit->max_size / nelts < 100) {
+    if (hinit->max_size > 10000 && nelts && hinit->max_size / nelts < 100) {
         start = hinit->max_size - 1000;
     }