| Original patch from: gentoo/src/patchsets/glibc/2.9/1055_all_glibc-resolv-dynamic.patch |
| |
| -= BEGIN original header =- |
| ripped from SuSE |
| |
| if /etc/resolv.conf is updated, then make sure applications |
| already running get the updated information. |
| |
| http://bugs.gentoo.org/177416 |
| |
| -= END original header =- |
| |
| diff -durN glibc-2_9.orig/resolv/res_libc.c glibc-2_9/resolv/res_libc.c |
| --- glibc-2_9.orig/resolv/res_libc.c 2006-10-11 10:59:28.000000000 +0200 |
| +++ glibc-2_9/resolv/res_libc.c 2009-02-02 22:00:57.000000000 +0100 |
| @@ -22,6 +22,7 @@ |
| #include <arpa/nameser.h> |
| #include <resolv.h> |
| #include <bits/libc-lock.h> |
| +#include <sys/stat.h> |
| |
| |
| /* The following bit is copied from res_data.c (where it is #ifdef'ed |
| @@ -95,6 +96,20 @@ |
| __res_maybe_init (res_state resp, int preinit) |
| { |
| if (resp->options & RES_INIT) { |
| + static time_t last_mtime, last_check; |
| + time_t now; |
| + struct stat statbuf; |
| + |
| + time (&now); |
| + if (now != last_check) { |
| + last_check = now; |
| + if (stat (_PATH_RESCONF, &statbuf) == 0 && last_mtime != statbuf.st_mtime) { |
| + last_mtime = statbuf.st_mtime; |
| + atomicinclock (lock); |
| + atomicinc (__res_initstamp); |
| + atomicincunlock (lock); |
| + } |
| + } |
| if (__res_initstamp != resp->_u._ext.initstamp) { |
| if (resp->nscount > 0) { |
| __res_iclose (resp, true); |
