bugfix: applied a patch to fix a bug in the standard ngx_geoip module where its nginx variables like $geoip_latitude might randomly take empty values when they should take perfect values. see http://mailman.nginx.org/pipermail/nginx-devel/2014-July/005642.html

patches/nginx-1.7.3-geoip_init_var_fields.patch

@@ -0,0 +1,36 @@
+# HG changeset patch
+# User Yichun Zhang <agentzh@gmail.com>
+# Date 1406324609 25200
+#      Fri Jul 25 14:43:29 2014 -0700
+# Node ID c038cc33739bbfab2ed50819191298471f22d233
+# Parent  93614769dd4b6df8844c3c43c6a0b3f83bfa6746
+GeoIP: not all variable fields were initialized.
+
+The ngx_http_geoip_city_float_variable and
+ngx_http_geoip_city_int_variable functions did not always initialize
+all variable fields like "not_found", which could lead to empty values
+for those corresponding nginx variales randomly.
+
+diff -r 93614769dd4b -r c038cc33739b src/http/modules/ngx_http_geoip_module.c
+--- a/src/http/modules/ngx_http_geoip_module.c	Sun May 11 21:56:07 2014 -0700
++++ b/src/http/modules/ngx_http_geoip_module.c	Fri Jul 25 14:43:29 2014 -0700
+@@ -553,6 +553,9 @@ ngx_http_geoip_city_float_variable(ngx_h
+     val = *(float *) ((char *) gr + data);
+ 
+     v->len = ngx_sprintf(v->data, "%.4f", val) - v->data;
++    v->valid = 1;
++    v->no_cacheable = 0;
++    v->not_found = 0;
+ 
+     GeoIPRecord_delete(gr);
+ 
+@@ -582,6 +585,9 @@ ngx_http_geoip_city_int_variable(ngx_htt
+     val = *(int *) ((char *) gr + data);
+ 
+     v->len = ngx_sprintf(v->data, "%d", val) - v->data;
++    v->valid = 1;
++    v->no_cacheable = 0;
++    v->not_found = 0;
+ 
+     GeoIPRecord_delete(gr);
+ 

util/mirror-tarballs

@@ -220,6 +220,10 @@ echo "$info_txt applying the proxy_ssl_handshake_timer patch for nginx $ver"
 patch -p1 < $root/patches/nginx-$ver-proxy_ssl_handshake_timer.patch || exit 1
 echo
 
+echo "$info_txt applying the geoip_init_var_fields patch for nginx $ver"
+patch -p1 < $root/patches/nginx-$ver-geoip_init_var_fields.patch || exit 1
+echo
+
 answer=`$root/util/ver-ge "$main_ver" 1.4.4`
 if [ "$answer" = "N" ]; then
     echo "$info_txt applying the CVE-2013-4547 patch for nginx $ver"