[PATCH v2] libnss-mdns: fix mDNS resolving speed

[PATCH v2] libnss-mdns: fix mDNS resolving speed

[Constantin Musca]

We need to fix the "hosts: files dns mdns4" nsswitch.conf line
because for a .local lookup it does a DNS lookup first which will fail.
The recommended solution is:
hosts: files mdns4_minimal [NOTFOUND=return] dns mdns4

[YOCTO #2502]

Signed-off-by: Constantin Musca <constantinx.musca@intel.com>
---
 .../libnss-mdns/libnss-mdns_0.10.bb                |   14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/meta/recipes-connectivity/libnss-mdns/libnss-mdns_0.10.bb b/meta/recipes-connectivity/libnss-mdns/libnss-mdns_0.10.bb
index a1f2f9a..f7356e4 100644
--- a/meta/recipes-connectivity/libnss-mdns/libnss-mdns_0.10.bb
+++ b/meta/recipes-connectivity/libnss-mdns/libnss-mdns_0.10.bb
@@ -7,7 +7,7 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=2d5025d4aa3495befef8f17206a5b0a1"
 
 DEPENDS = "avahi"
 RDEPENDS_${PN} = "avahi-daemon"
-PR = "r5"
+PR = "r6"
 
 SRC_URI = "http://0pointer.de/lennart/projects/nss-mdns/nss-mdns-${PV}.tar.gz"
 
@@ -24,13 +24,13 @@ DEBIANNAME_${PN} = "libnss-mdns"
 EXTRA_OECONF = "--libdir=${base_libdir} --disable-lynx --enable-avahi"
 
 pkg_postinst_${PN} () {
-if ! grep -q '^hosts:.*\<mdns4\>' $D/etc/nsswitch.conf; then
-	sed -e 's/^hosts:.*/& mdns4/' -i $D/etc/nsswitch.conf
-fi
+	sed -e '/^hosts:/s/\s*\<mdns4\>//' \
+		-e 's/\(^hosts:.*\)\(\<files\>\)\(.*\)\(\<dns\>\)\(.*\)/\1\2 mdns4_minimal [NOTFOUND=return]\3\4 mdns4\5/' \
+		-i $D/etc/nsswitch.conf
 }
 
 pkg_prerm_${PN} () {
-if grep -q '^hosts:.*\<mdns4\>' /etc/nsswitch.conf; then
-	sed -e '/^hosts:/s/\s\<mdns4\>//' -i /etc/nsswitch.conf
-fi
+	sed -e '/^hosts:/s/\s*\<mdns4\>//' \
+		-e '/^hosts:/s/\s*mdns4_minimal\s\+\[NOTFOUND=return\]//' \
+		-i /etc/nsswitch.conf
 }
-- 
1.7.9.5

Re: [PATCH v2] libnss-mdns: fix mDNS resolving speed

[Saul Wold]

On 09/28/2012 08:13 AM, Constantin Musca wrote:
> We need to fix the "hosts: files dns mdns4" nsswitch.conf line
> because for a .local lookup it does a DNS lookup first which will fail.
> The recommended solution is:
> hosts: files mdns4_minimal [NOTFOUND=return] dns mdns4
>
> [YOCTO #2502]
>
> Signed-off-by: Constantin Musca <constantinx.musca@intel.com>
> ---
>   .../libnss-mdns/libnss-mdns_0.10.bb                |   14 +++++++-------
>   1 file changed, 7 insertions(+), 7 deletions(-)
>
> diff --git a/meta/recipes-connectivity/libnss-mdns/libnss-mdns_0.10.bb b/meta/recipes-connectivity/libnss-mdns/libnss-mdns_0.10.bb
> index a1f2f9a..f7356e4 100644
> --- a/meta/recipes-connectivity/libnss-mdns/libnss-mdns_0.10.bb
> +++ b/meta/recipes-connectivity/libnss-mdns/libnss-mdns_0.10.bb
> @@ -7,7 +7,7 @@ LIC_FILES_CHKSUM = "file://LICENSE;md5=2d5025d4aa3495befef8f17206a5b0a1"
>
>   DEPENDS = "avahi"
>   RDEPENDS_${PN} = "avahi-daemon"
> -PR = "r5"
> +PR = "r6"
>
>   SRC_URI = "http://0pointer.de/lennart/projects/nss-mdns/nss-mdns-${PV}.tar.gz"
>
> @@ -24,13 +24,13 @@ DEBIANNAME_${PN} = "libnss-mdns"
>   EXTRA_OECONF = "--libdir=${base_libdir} --disable-lynx --enable-avahi"
>
>   pkg_postinst_${PN} () {
> -if ! grep -q '^hosts:.*\<mdns4\>' $D/etc/nsswitch.conf; then
> -	sed -e 's/^hosts:.*/& mdns4/' -i $D/etc/nsswitch.conf
> -fi
> +	sed -e '/^hosts:/s/\s*\<mdns4\>//' \
> +		-e 's/\(^hosts:.*\)\(\<files\>\)\(.*\)\(\<dns\>\)\(.*\)/\1\2 mdns4_minimal [NOTFOUND=return]\3\4 mdns4\5/' \
> +		-i $D/etc/nsswitch.conf
>   }
>
>   pkg_prerm_${PN} () {
> -if grep -q '^hosts:.*\<mdns4\>' /etc/nsswitch.conf; then
> -	sed -e '/^hosts:/s/\s\<mdns4\>//' -i /etc/nsswitch.conf
> -fi
> +	sed -e '/^hosts:/s/\s*\<mdns4\>//' \
> +		-e '/^hosts:/s/\s*mdns4_minimal\s\+\[NOTFOUND=return\]//' \
> +		-i /etc/nsswitch.conf
>   }
>

Merged into OE-Core

Thanks
	Sau!