Moved luci.sys.exec, luci.sys.execl and luci.sys.bigendian to luci.util

[project/luci.git] / libs / core / luasrc / util.lua

diff --git a/libs/core/luasrc/util.lua b/libs/core/luasrc/util.lua
index a4ea2d2..2f6cfad 100644 (file)
--- a/libs/core/luasrc/util.lua
+++ b/libs/core/luasrc/util.lua
@@ -574,6 +574,45 @@ end
 
 
 --
+-- System utility functions
+--
+
+--- Test whether the current system is operating in big endian mode.
+-- @return     Boolean value indicating whether system is big endian
+function bigendian()
+       return string.byte(string.dump(function() end), 7) == 0
+end
+
+--- Execute given commandline and gather stdout.
+-- @param command      String containing command to execute
+-- @return                     String containing the command's stdout
+function exec(command)
+       local pp   = io.popen(command)
+       local data = pp:read("*a")
+       pp:close()
+
+       return data
+end
+
+--- Execute given commandline and gather stdout.
+-- @param command      String containing the command to execute
+-- @return                     Table containing the command's stdout splitted up in lines
+function execl(command)
+       local pp   = io.popen(command)
+       local line = ""
+       local data = {}
+
+       while true do
+               line = pp:read()
+               if (line == nil) then break end
+               table.insert(data, line)
+       end
+       pp:close()
+
+       return data
+end
+
+--
 -- Coroutine safe xpcall and pcall versions modified for Luci
 -- original version:
 -- coxpcall 1.13 - Copyright 2005 - Kepler Project (www.keplerproject.org)