update to getEnvFromPid() for freebsd

modules/user-sessions.js

@@ -596,12 +596,14 @@ function UserSessions()
         this.getEnvFromPid = function getEnvFromPid(pid)
         {
             var ret = {};
+            if (process.platform == 'linux')
+            {
                 var ps, psx, v, vs = 0;
                 try
                 {
                     ps = require('fs').readFileSync('/proc/' + pid + '/environ');
                 }
-            catch(pse)
+                catch (pse)
                 {
                     return (ret);
                 }
@@ -615,6 +617,21 @@ function UserSessions()
                         vs = psx + 1;
                     }
                 }
+            }
+            else if (process.platform == 'freebsd')
+            {
+                var child = require('child_process').execFile('/bin/sh', ['sh']);
+                child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });
+                child.stdin.write("procstat -e " + pid + " | grep " + pid + " | awk '{ $1=\"\"; $2=\"\"; print $0 }' | tr \"\\ \" \"\\n\" | awk -F= '{ if($1==\"\") { print $0 }}'\nexit\n");
+                child.waitExit();
+                var env;
+                var tokens = child.stdout.str.trim().split('\n');
+                for(var i in tokens)
+                {
+                    env = tokens[i].split('=');
+                    ret[env[0]] = env[1];
+                }
+            }
             return (ret);
         };
         this.findEnv = function findEnv(uid, env)