Esempio n. 1
0
static NetlinkList *getResultList(int p_socket, int p_request)
{
    if(netlink_send(p_socket, p_request) < 0)
    {
        return NULL;
    }

    NetlinkList *l_list = NULL;
    NetlinkList *l_end = NULL;
    int l_size;
    int l_done = 0;
    while(!l_done)
    {
        struct nlmsghdr *l_hdr = getNetlinkResponse(p_socket, &l_size, &l_done);
        if(!l_hdr)
        { // error
            freeResultList(l_list);
            return NULL;
        }

        NetlinkList *l_item = newListItem(l_hdr, l_size);
        if(!l_list)
        {
            l_list = l_item;
        }
        else
        {
            l_end->m_next = l_item;
        }
        l_end = l_item;
    }
    return l_list;
}
Esempio n. 2
0
int getifaddrs(struct ifaddrs **ifap)
{
    int l_socket;
    int l_result;
    int l_numLinks;
    NetlinkList *l_linkResults;
    NetlinkList *l_addrResults;

    if(!ifap)
    {
        return -1;
    }
    *ifap = NULL;

    l_socket = netlink_socket();
    if(l_socket < 0)
    {
        return -1;
    }

    l_linkResults = getResultList(l_socket, RTM_GETLINK);
    if(!l_linkResults)
    {
        close(l_socket);
        return -1;
    }

    l_addrResults = getResultList(l_socket, RTM_GETADDR);
    if(!l_addrResults)
    {
        close(l_socket);
        freeResultList(l_linkResults);
        return -1;
    }

    l_result = 0;
    l_numLinks = interpretLinks(l_socket, l_linkResults, ifap);
    if(l_numLinks == -1 || interpretAddrs(l_socket, l_addrResults, ifap, l_numLinks) == -1)
    {
        l_result = -1;
    }

    freeResultList(l_linkResults);
    freeResultList(l_addrResults);
    close(l_socket);
    return l_result;
}
Esempio n. 3
0
int getifaddrs(struct ifaddrs **ifap)
{
    if(!ifap)
    {
        return -1;
    }
    *ifap = NULL;
    
    int l_socket = netlink_socket();
    if(l_socket < 0)
    {
        return -1;
    }
    
    NetlinkList *l_linkResults = getResultList(l_socket, RTM_GETLINK);
    if(!l_linkResults)
    {
        close(l_socket);
        return -1;
    }
    
    NetlinkList *l_addrResults = getResultList(l_socket, RTM_GETADDR);
    if(!l_addrResults)
    {
        close(l_socket);
        freeResultList(l_linkResults);
        return -1;
    }
    
    unsigned l_numLinks = countLinks(l_socket, l_linkResults) + countLinks(l_socket, l_addrResults);
    struct ifaddrs *l_links[l_numLinks];
    memset(l_links, 0, l_numLinks * sizeof(struct ifaddrs *));
    
    if (interpret(l_socket, l_linkResults, l_links, ifap) == -1)
    {
        return -1;
    }
    if (interpret(l_socket, l_addrResults, l_links, ifap) == -1)
    {
        return -1;
    }

    freeResultList(l_linkResults);
    freeResultList(l_addrResults);
    close(l_socket);
    return 0;
}