Merge "add 'nodad' support to ifc_add_address()"

    return err->error;

}

// Pass bitwise complement of prefix length to disable DAD, ie. use ~64 instead of 64.

// Returns zero on success and negative errno on failure.

int ifc_add_address(const char *name, const char *address, int prefixlen) {

    return ifc_act_on_address(RTM_NEWADDR, name, address, prefixlen, /*nodad*/ false);

    bool nodad = (prefixlen < 0);

    if (nodad) prefixlen = ~prefixlen;

    return ifc_act_on_address(RTM_NEWADDR, name, address, prefixlen, nodad);

}

// Returns zero on success and negative errno on failure.

int ifc_del_address(const char *name, const char * address, int prefixlen) {

    return ifc_act_on_address(RTM_DELADDR, name, address, prefixlen, /*nodad*/ false);

    bool nodad = (prefixlen < 0);

    if (nodad) prefixlen = ~prefixlen;

    return ifc_act_on_address(RTM_DELADDR, name, address, prefixlen, nodad);

}

/*