Function ACLSetUserCommandBit

app/redis-6.2.6/src/acl.c:397–406

Set the specified command bit for the specified user to 'value' (0 or 1). * If the bit overflows the user internal representation, no operation * is performed. As a side effect of calling this function with a value of * zero, the user flag ALLCOMMANDS is cleared since it is no longer possible * to skip the command bit explicit test. */

 * zero, the user flag ALLCOMMANDS is cleared since it is no longer possible
 * to skip the command bit explicit test. */
void ACLSetUserCommandBit(user *u, unsigned long id, int value) {
    uint64_t word, bit;
    if (ACLGetCommandBitCoordinates(id,&word,&bit) == C_ERR) return;
    if (value) {
        u->allowed_commands[word] |= bit;
    } else {
        u->allowed_commands[word] &= ~bit;
        u->flags &= ~USER_FLAG_ALLCOMMANDS;
    }
}

/* This is like ACLSetUserCommandBit(), but instead of setting the specified
 * ID, it will check all the commands in the category specified as argument,