Re: [lwip-users] lwip 1.1.0: missing ipv4 ip_addr_netcmp()?

[Leon Woestenberg]

Hello Christ,

Chris Frost wrote:

> I just upgraded from lwip 1.0.0 to 1.1.0 and it seems there is code using
> ip_addr_netcmp(). Specifically, ipv4/ip_addr.c:75, ipv4/ip.c:88,
> netif/etharp.c:439, and netif/etharp.c:626 I've noticed.
>
> I see ipv6's declaration of this function, but haven't been able to find any
> other declarations. Am I missing something?
>  
_netcmp() previously was called _maskcmp(). As we are comparing networks 
(and not their
masks)  this function was renamed. It is implemented as a macro in this 
header file:

include/ipv4/lwip/ip_addr.h:

/**
* Determine if two address are on the same network.
*
* @arg addr1 IP address 1
* @arg addr2 IP address 2
* @arg mask network identifier mask
* @return !0 if the network identifiers of both address match
*/
#define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \
                                             (mask)->addr) == \
                                            ((addr2)->addr & \
                                             (mask)->addr))


So simply include this file and you should be OK.

Regards,

Leon.