- s = getenv ("testdramdata");
- rundata = (s && (*s == 'y')) ? 1 : 0;
- s = getenv ("testdramaddress");
- runaddress = (s && (*s == 'y')) ? 1 : 0;
- s = getenv ("testdramwalk");
- runwalk = (s && (*s == 'y')) ? 1 : 0;
+ rundata = getenv_yesno("testdramdata") == 1;
+ runaddress = getenv_yesno("testdramaddress") == 1;
+ runwalk = getenv_yesno("testdramwalk") == 1;