From: Hannu Nyman <hannu.nyman@iki.fi>
Date: Tue, 29 Mar 2016 12:33:00 +0000 (+0300)
Subject: Merge pull request #678 from cshore/pull-request-lib-depends
X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fluci.git;a=commitdiff_plain;h=6b627a934f525feebbaf72cd233c8f237d908918;hp=a28761f314f4d3b1e560962cb4edb493f66c6a81

Merge pull request #678 from cshore/pull-request-lib-depends

luci-base: Add option to check linked libraries
---

diff --git a/modules/luci-base/luasrc/util.lua b/modules/luci-base/luasrc/util.lua
index 2956aadcf..d614a6c79 100644
--- a/modules/luci-base/luasrc/util.lua
+++ b/modules/luci-base/luasrc/util.lua
@@ -636,6 +636,23 @@ function libpath()
 	return require "nixio.fs".dirname(ldebug.__file__)
 end
 
+function checklib(fullpathexe, wantedlib)
+	local fs = require "nixio.fs"
+	local haveldd = fs.access('/usr/bin/ldd')
+	if not haveldd then
+		return -1
+	end
+	local libs = exec("/usr/bin/ldd " .. fullpathexe)
+	if not libs then
+		return 0
+	end
+	for k, v in ipairs(split(libs)) do
+		if v:find(wantedlib) then
+			return 1
+		end
+	end
+	return 0
+end
 
 --
 -- Coroutine safe xpcall and pcall versions modified for Luci