// Assume: password[0]=0, host[0] != 0.
// If login[0] = 0, search for login and password within a machine section
// in the netrc.
// If login[0] != 0, search for password within machine and login.
int parsenetrc (char *host, char *login, char *password, char *filename);
// Assume: password[0]=0, host[0] != 0.
// If login[0] = 0, search for login and password within a machine section
// in the netrc.
// If login[0] != 0, search for password within machine and login.
int parsenetrc (char *host, char *login, char *password, char *filename);