DOS ain't dead

How to set env. var from C program (Developers)

posted by RayeR , CZ, 15.01.2013, 04:34

I'm trying like idiot and nothing works.
I tried various functions like

int main(void)
{
  printf("putenv: %d\n", putenv("TEST1=123"));
  printf("sys: %d\n", system("SET TEST2=123"));
...clearenv, setenv
  return(0);
}

I can only read env. Funtions returns 0 = success but when I type set or env in shell I don't see new var. I tried DOS, win, linux - all the same. Do I need to call some extra function that flush env. changes to make it persistent? Or other way to do it? Uf going to bed now....

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DOS gives me freedom to unlimited HW access.

Complete thread:

• How to set env. var from C program - RayeR, 15.01.2013, 04:34
  • How to set env. var from C program - Laaca, 15.01.2013, 07:41
    • How to set env. var from C program - RayeR, 15.01.2013, 10:31
      • How to set env. var from C program - tom, 15.01.2013, 13:54
        • How to set env. var from C program - RayeR, 15.01.2013, 14:07
          • How to set env. var from C program - tom, 15.01.2013, 15:41
          • How to set env. var from C program - marcov, 16.01.2013, 15:19
            • How to set env. var from C program - RayeR, 16.01.2013, 23:33
        • How to set env. var from C program - RayeR, 15.01.2013, 16:24
        • How to set env. var from C program - bocke, 18.01.2013, 16:57
      • How to set env. var from C program - bretjohn, 15.01.2013, 17:30
        • How to set env. var from C program - RayeR, 15.01.2013, 23:51
          • How to set env. var from C program - bretjohn, 16.01.2013, 01:05
            • How to set env. var from C program - RayeR, 16.01.2013, 03:20
              • How to set env. var from C program - bretjohn, 16.01.2013, 17:08
      • How to set env. var from C program - j_hoff, 15.01.2013, 23:57
        • How to set env. var from C program - RayeR, 16.01.2013, 00:49
          • How to set env. var from C program - roytam, 16.01.2013, 04:57
        • How to set env. var from C program - roytam, 16.01.2013, 05:13
          • How to set env. var from C program - j_hoff, 16.01.2013, 08:11
  • How to set env. var from C program - georgpotthast, 15.01.2013, 22:20
    • How to set env. var from C program - RayeR, 15.01.2013, 23:48