patches/glibc/ports-2.12.1/180-resolv-dynamic.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Thu Dec 27 12:45:22 2012 +0100 (2012-12-27)
changeset 3152 b286c7993be5
permissions -rw-r--r--
scripts/addToolsVersion: properly handle .in vs. .in.2

While most components have their version in the .in file, some
have it in the .in.2 (eg. elf2flt).

Currently, to handle this case, we indiscriminately munge both files,
but this is wrong: in the elf2flt case, if we add a binutils version,
we do not want it to be added to elf2flt, and conversely.

So, for each tool, we need to explicitly know what file to munge.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
     1 ripped from SuSE
     2 
     3 if /etc/resolv.conf is updated, then make sure applications
     4 already running get the updated information.
     5 
     6 http://bugs.gentoo.org/177416
     7 
     8 diff -durN glibc-2.12.1.orig/resolv/res_libc.c glibc-2.12.1/resolv/res_libc.c
     9 --- glibc-2.12.1.orig/resolv/res_libc.c	2009-02-07 05:27:42.000000000 +0100
    10 +++ glibc-2.12.1/resolv/res_libc.c	2009-11-13 00:49:59.000000000 +0100
    11 @@ -22,6 +22,7 @@
    12  #include <arpa/nameser.h>
    13  #include <resolv.h>
    14  #include <bits/libc-lock.h>
    15 +#include <sys/stat.h>
    16  
    17  
    18  /* The following bit is copied from res_data.c (where it is #ifdef'ed
    19 @@ -95,6 +96,20 @@
    20  __res_maybe_init (res_state resp, int preinit)
    21  {
    22  	if (resp->options & RES_INIT) {
    23 +		static time_t last_mtime, last_check;
    24 +		time_t now;
    25 +		struct stat statbuf;
    26 +		
    27 +		time (&now);
    28 +		if (now != last_check) {
    29 +			last_check = now;
    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);
    35 +			}
    36 +		}
    37  		if (__res_initstamp != resp->_u._ext.initstamp) {
    38  			if (resp->nscount > 0)
    39  				__res_iclose (resp, true);