3 if /etc/resolv.conf is updated, then make sure applications
4 already running get the updated information.
6 http://bugs.gentoo.org/177416
8 diff -durN glibc-2.10.1.orig/resolv/res_libc.c glibc-2.10.1/resolv/res_libc.c
9 --- glibc-2.10.1.orig/resolv/res_libc.c 2009-02-07 05:27:42.000000000 +0100
10 +++ glibc-2.10.1/resolv/res_libc.c 2009-11-13 00:49:59.000000000 +0100
12 #include <arpa/nameser.h>
14 #include <bits/libc-lock.h>
15 +#include <sys/stat.h>
18 /* The following bit is copied from res_data.c (where it is #ifdef'ed
20 __res_maybe_init (res_state resp, int preinit)
22 if (resp->options & RES_INIT) {
23 + static time_t last_mtime, last_check;
25 + struct stat statbuf;
28 + if (now != last_check) {
30 + if (stat (_PATH_RESCONF, &statbuf) == 0 && last_mtime != statbuf.st_mtime) {
31 + last_mtime = statbuf.st_mtime;
32 + atomicinclock (lock);
33 + atomicinc (__res_initstamp);
34 + atomicincunlock (lock);
37 if (__res_initstamp != resp->_u._ext.initstamp) {
38 if (resp->nscount > 0)
39 __res_iclose (resp, true);