patches/glibc/2.9/250-resolv-dynamic.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Aug 30 16:54:30 2009 +0200 (2009-08-30)
changeset 1502 472cfde636a1
parent 1201 c9967a6e3b25
permissions -rw-r--r--
config: move the "build shared libraries" option to the OS menu

The "Build shared libraries" config option is dependant on the type of
"Target OS".

Moving this options to the "Target OS" sub-menu is also better in the user
perspective: he/she no longer needs to go back and forth to see if he/she
missed any option.
     1 Original patch from: gentoo/src/patchsets/glibc/2.9/1055_all_glibc-resolv-dynamic.patch
     2 
     3 -= BEGIN original header =-
     4 ripped from SuSE
     5 
     6 if /etc/resolv.conf is updated, then make sure applications
     7 already running get the updated information.
     8 
     9 http://bugs.gentoo.org/177416
    10 
    11 -= END original header =-
    12 
    13 diff -durN glibc-2_9.orig/resolv/res_libc.c glibc-2_9/resolv/res_libc.c
    14 --- glibc-2_9.orig/resolv/res_libc.c	2006-10-11 10:59:28.000000000 +0200
    15 +++ glibc-2_9/resolv/res_libc.c	2009-02-02 22:00:57.000000000 +0100
    16 @@ -22,6 +22,7 @@
    17  #include <arpa/nameser.h>
    18  #include <resolv.h>
    19  #include <bits/libc-lock.h>
    20 +#include <sys/stat.h>
    21  
    22  
    23  /* The following bit is copied from res_data.c (where it is #ifdef'ed
    24 @@ -95,6 +96,20 @@
    25  __res_maybe_init (res_state resp, int preinit)
    26  {
    27  	if (resp->options & RES_INIT) {
    28 +		static time_t last_mtime, last_check;
    29 +		time_t now;
    30 +		struct stat statbuf;
    31 +		
    32 +		time (&now);
    33 +		if (now != last_check) {
    34 +			last_check = now;
    35 +			if (stat (_PATH_RESCONF, &statbuf) == 0 && last_mtime != statbuf.st_mtime) {
    36 +				last_mtime = statbuf.st_mtime;
    37 +				atomicinclock (lock);
    38 +				atomicinc (__res_initstamp);
    39 +				atomicincunlock (lock);
    40 +			}
    41 +		}
    42  		if (__res_initstamp != resp->_u._ext.initstamp) {
    43  			if (resp->nscount > 0) {
    44  				__res_iclose (resp, true);