addnode
addnode(env, "DOAS_USER", mypw->pw_name);
addnode(env, "HOME", targpw->pw_dir);
addnode(env, "LOGNAME", targpw->pw_name);
addnode(env, "PATH", getenv("PATH"));
addnode(env, "SHELL", targpw->pw_shell);
addnode(env, "USER", targpw->pw_name);