libuv-interface

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libuv interface example

更新記錄

item note
20160517 第一版

目錄

intreface example

範例說明

範例內容

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 int main() {
    char buf[512];
    uv_interface_address_t *info;
    int count, i;

    uv_interface_addresses(&info, &count);
    i = count;

    printf("Number of interfaces: %d\n", count);
    while (i--) {
        uv_interface_address_t interface = info[i];

        printf("Name: %s\n", interface.name);
        printf("Internal? %s\n", interface.is_internal ? "Yes" : "No");
        
        if (interface.address.address4.sin_family == AF_INET) {
            uv_ip4_name(&interface.address.address4, buf, sizeof(buf));
            printf("IPv4 address: %s\n", buf);
        }
        else if (interface.address.address4.sin_family == AF_INET6) {
            uv_ip6_name(&interface.address.address6, buf, sizeof(buf));
            printf("IPv6 address: %s\n", buf);
        }

        printf("\n");
    }

    uv_free_interface_addresses(info, count);
    return 0;
}

範例測試

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[ubuntu](master-48df99a)0h29m root@e8b0cd737680:[t10_interface]$ ifconfig
eth0      Link encap:Ethernet  HWaddr 02:42:ac:11:00:02  
          inet addr:172.17.0.2  Bcast:0.0.0.0  Mask:255.255.0.0
          inet6 addr: fe80::42:acff:fe11:2/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:2465 errors:0 dropped:0 overruns:0 frame:0
          TX packets:78 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:739856 (739.8 KB)  TX bytes:5742 (5.7 KB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:67 errors:0 dropped:0 overruns:0 frame:0
          TX packets:67 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:4268 (4.2 KB)  TX bytes:4268 (4.2 KB)
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[ubuntu](master-48df99a)0h26m root@e8b0cd737680:[t10_interface]$ ./t10-main-ubuntu 
Number of interfaces: 4
Name: eth0
Internal? No
IPv6 address: fe80::42:acff:fe11:2

Name: lo
Internal? Yes
IPv6 address: ::1

Name: eth0
Internal? No
IPv4 address: 172.17.0.2

Name: lo
Internal? Yes
IPv4 address: 127.0.0.1

參考來源