scan_balance
enum scan_balance scan_balance;
scan_balance = SCAN_FILE;
scan_balance = SCAN_FILE;
scan_balance = SCAN_ANON;
scan_balance = SCAN_EQUAL;
scan_balance = SCAN_ANON;
scan_balance = SCAN_FILE;
scan_balance = SCAN_FRACT;
switch (scan_balance) {
if ((scan_balance == SCAN_FILE) != file)