mono/tests/setenv.cs

   1 using System;
   2 using System.Runtime.InteropServices;
   3
   4 namespace Test {
   5
   6         public class Test {
   7                 [DllImport("libc")]
   8                 static extern int setenv(string name, string value, int overwrite);
   9                 [DllImport("libc")]
  10                 static extern IntPtr getenv(string name);
  11
  12                 static int Main() {
  13                         try {
  14                                 string name = "mono_test";
  15                                 string value = "val";
  16
  17                                 setenv (name, value, 1);
  18                                 string ret = Marshal.PtrToStringAnsi (getenv (name));
  19
  20                                 if (ret != value)
  21                                         return 1;
  22                         }
  23                         catch (EntryPointNotFoundException) {
  24                                 /* setenv is not available on some platforms */
  25                         }
  26                         catch (DllNotFoundException) {
  27                                 /* libc might not be accessible by that name */
  28                         }
  29
  30                         return 0;
  31                 }
  32         }
  33 }