From: Martin Mares <mj@ucw.cz>
Date: Wed, 13 Feb 2008 15:57:02 +0000 (+0100)
Subject: Call res_init() only once.
X-Git-Tag: v3.0.0~1^2~27
X-Git-Url: http://mj.ucw.cz/gitweb/?a=commitdiff_plain;h=a14d7f993829bbc538d76b18f8935e67cffa3bfe;p=pciutils.git

Call res_init() only once.

This avoids perpetual re-reading of /etc/resolv.conf.
---

diff --git a/lib/names-net.c b/lib/names-net.c
index 335bf68..d96cc4d 100644
--- a/lib/names-net.c
+++ b/lib/names-net.c
@@ -21,6 +21,7 @@
 char
 *pci_id_net_lookup(struct pci_access *a, int cat, int id1, int id2, int id3, int id4)
 {
+  static int resolver_inited;
   char name[256], dnsname[256], txt[256], *domain;
   byte answer[4096];
   const byte *data;
@@ -61,7 +62,11 @@ char
   sprintf(dnsname, "%s.%s", name, domain);
 
   a->debug("Resolving %s\n", dnsname);
-  res_init();
+  if (!resolver_inited)
+    {
+      resolver_inited = 1;
+      res_init();
+    }
   res = res_query(dnsname, ns_c_in, ns_t_txt, answer, sizeof(answer));
   if (res < 0)
     {