testing/lua-resty-dns: new aport

DNS resolver for the nginx lua module
https://github.com/openresty/lua-resty-dns
This commit is contained in:
Timo Teräs 2016-08-05 08:38:04 +03:00
parent d46ecff790
commit b07e0c1910
2 changed files with 149 additions and 0 deletions

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@ -0,0 +1,59 @@
# Contributor: Timo Teräs <timo.teras@iki.fi>
# Maintainer: Timo Teräs <timo.teras@iki.fi>
_luaversions="5.1"
pkgname=lua-resty-dns
pkgver=0.16
pkgrel=0
pkgdesc="DNS resolver for the nginx lua module"
url="https://github.com/openresty/lua-resty-dns"
arch="noarch"
license="BSD"
depends="nginx-lua"
makedepends=""
install=""
subpackages=""
source="lua-resty-dns-$pkgver.tar.gz::https://github.com/openresty/lua-resty-dns/archive/v$pkgver.tar.gz
add-naptr.patch"
builddir="$srcdir/lua-resty-dns-$pkgver"
for _v in $_luaversions; do
subpackages="$subpackages lua${_v}-resty-dns:split_${_v/./_}"
done
build() {
cd "$builddir"
}
package() {
cd "$builddir"
local _i
for _i in $_luaversions; do
mkdir -p "$pkgdir"/usr/share/lua/$_i
make DESTDIR="$pkgdir" LUA_LIB_DIR="/usr/share/lua/$_i" install \
|| return 1
done
}
_split() {
local d= _ver=$1
pkgdesc="$pkgdesc for Lua $_ver"
install_if="lua$_ver $pkgname=$pkgver-r$pkgrel"
depends=
for d in usr/lib/lua usr/share/lua; do
if [ -d "$pkgdir"/$d/$_ver ]; then
mkdir -p "$subpkgdir"/$d
mv "$pkgdir"/$d/$_ver "$subpkgdir"/$d/ || return 1
fi
done
}
for _v in $_luaversions; do
eval "split_${_v/./_}() { _split $_v; }"
done
md5sums="f25a1d8169fd213887221d7d7600da30 lua-resty-dns-0.16.tar.gz
d5b6cf8894c838e74a4e38cd1d17939e add-naptr.patch"
sha256sums="299763d072f02364a7a767cab85f0412cdf64e2cf6034259c909a5515f7f0a13 lua-resty-dns-0.16.tar.gz
d99c3f35678ec828e6b72cb12e7e291b8cce13f88b1576ab532d92adb449079f add-naptr.patch"
sha512sums="7920a7cf6b7927b09ed5b066f7b8cb72f1a5924cdb7fa382500cf36a0c1d3d1099441c64003b201d820ed69003676e494087ac3f24ed021f457837e08f8b0f14 lua-resty-dns-0.16.tar.gz
a05183db6e9d40b916e27c03f85d1d227203a70b57807df680a6f07956100481b511cfcfdd229e862cea1623a728b0e60f3a0edfcaabae458e57ed80b7aafc8f add-naptr.patch"

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@ -0,0 +1,90 @@
From 5dcc817d96352b05f7468d058c39be3e6616d037 Mon Sep 17 00:00:00 2001
From: Sergey Lukin <sergey.lukin@inbox.lv>
Date: Fri, 5 Aug 2016 12:09:11 +0300
Subject: [PATCH] add NAPTR record support
---
lib/resty/dns/resolver.lua | 49 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 49 insertions(+)
diff --git a/lib/resty/dns/resolver.lua b/lib/resty/dns/resolver.lua
index 7612b52..989d225 100644
--- a/lib/resty/dns/resolver.lua
+++ b/lib/resty/dns/resolver.lua
@@ -48,6 +48,7 @@ local TYPE_MX = 15
local TYPE_TXT = 16
local TYPE_AAAA = 28
local TYPE_SRV = 33
+local TYPE_NAPTR = 35
local TYPE_SPF = 99
local CLASS_IN = 1
@@ -67,6 +68,7 @@ local _M = {
TYPE_TXT = TYPE_TXT,
TYPE_AAAA = TYPE_AAAA,
TYPE_SRV = TYPE_SRV,
+ TYPE_NAPTR = TYPE_NAPTR,
TYPE_SPF = TYPE_SPF,
CLASS_IN = CLASS_IN,
SECTION_AN = SECTION_AN,
@@ -209,6 +211,16 @@ local function _encode_name(s)
return char(#s) .. s
end
+local function _decode_string(buf, pos)
+ local slen = byte(buf, pos)
+ if slen == 0 then
+ return "", pos + 1
+ end
+ if pos + 1 + slen >= #buf then
+ return nil, 'truncated'
+ end
+ return sub(buf, pos + 1, pos + slen), pos + slen + 1
+end
local function _decode_name(buf, pos)
local labels = {}
@@ -484,6 +496,43 @@ local function parse_section(answers, section, buf, start_pos, size,
pos = p
+ elseif typ == TYPE_NAPTR then
+ if len < 7 then
+ return nil, "bad NAPTR record value length: " .. len
+ end
+
+ local hi = byte(buf, pos)
+ local lo = byte(buf, pos + 1)
+ ans.order = lshift(hi, 8) + lo
+
+ hi = byte(buf, pos + 2)
+ lo = byte(buf, pos + 3)
+ ans.preference = lshift(hi, 8) + lo
+
+ local str, p = _decode_string(buf, pos + 4)
+ if not str then return nil, pos end
+ ans.flags = str
+
+ str, p = _decode_string(buf, p)
+ if not str then return nil, pos end
+ ans.services = str
+
+ str, p = _decode_string(buf, p)
+ if not str then return nil, pos end
+ ans.regexp = str
+
+ if p - pos < len then
+ str,p = _decode_name(buf, p)
+ if not str then return nil, pos end
+ ans.replacements = str
+ end
+
+ if p - pos ~= len then
+ return nil, format("bad NAPTR record length: %d ~= %d", p - pos, len)
+ end
+
+ pos = p
+
elseif typ == TYPE_NS then
local name, p = _decode_name(buf, pos)