.TH "KDK_NET_GET_NETMASK" 3 "Thu Sep 14 2023" "Linux Programmer's Manual" \"
.SH NAME
kdk_net_get_netmask - 释放由kdk_net_get_iptable_rules返回的防火墙信息结构体
.SH SYNOPSIS
.nf
.B #include <libkynetinfo.h>
.sp
.BI "extern void kdk_net_get_netmask(IN const char *"nc ", OUT char *"mask ");" 
.sp
Link with \fI\-lkynetinfo\fP.
.SH "Detailed Description"
The main function of the interface is to obtain subnet mask information.
.PP
The argument
.I nc
is the name of the NIC, such as "eno1".
.PP
The argument
.I mask
is the subnet mask information.
.SH "RETURN VALUE"
No return value
.SH EXAMPLES
.EX
#include "libkynetinfo.h"
#include "stdio.h"
#include "stdlib.h"

int main(int argc, char *argv[])
{
    prouteMapList list = kdk_net_get_route(), tmp = list;
    while (tmp)
    {
        printf("%s default route %s\n", tmp->name, tmp->addr);
        tmp = tmp->next;
    }
    kdk_net_free_route(list);
    if (argc < 2)
        printf("please input test port num\n");
    else
        printf("port:%s's state %d\n", argv[1], kdk_net_get_port_stat(atoi(argv[1])));
    
    pChain chain = kdk_net_get_iptable_rules();
    pChain tmpchain = chain;
    while(tmpchain)
    {
        printf("Chain: %s\tpolice: %s\n",tmpchain->total,tmpchain->policy);
        pChainData tmpData = tmpchain->data;
        if(tmpData)
            printf("target: %s\tprot: %s\topt: %s\tsource: %s\tdestination: %s\toption: %s\n",tmpData->target,tmpData->prot,tmpData->opt,
                                tmpData->source,tmpData->destination,tmpData->option);
        printf("\n");
        tmpchain = tmpchain->next;
    }
    kdk_net_free_chain(chain);

    int result[65536];
    int net = kdk_net_get_multiple_port_stat(0, 1000, result);
    if(net == 0)
    {
        size_t count = 0;
        for(;count < 1000 ;count++)
        {
            printf("%d\t", result[count]);
        }
    }
    else
        printf("Failed With %d", net);
     printf("\n");
    
    char mask[32] = "\0";
    kdk_net_get_netmask("enaftgm1i0", mask);
    printf("mask = %s\n", mask);

    char **port = kdk_net_get_proc_port();
    size_t index = 0;
    while(port[index])
    {
        printf("No.%ld, port = %s\n", index+1, port[index]);
        index++;
    }
    kdk_net_freeall(port);

    port = kdk_net_get_up_port();
    index = 0;
    while(port[index])
    {
        printf("No.%ld, port = %s\n", index+1, port[index]);
        index++;
    }
    kdk_net_freeall(port);

    char *hosts = kdk_net_get_hosts();
    if (hosts != NULL)
    {
        printf("hosts = %s\n", hosts);
        free(hosts);
    }

    char *domain = kdk_net_get_hosts_domain();
    if (domain != NULL)
    {
        printf("domain = %s\n", domain);
        free(domain);
    }

    char **resolv = kdk_net_get_resolv_conf();
    index = 0;
    while(resolv[index])
    {
        printf("No.%ld, resolv = %s\n", index+1, resolv[index]);
        index++;
    }
    kdk_net_freeall(resolv);
    return 0;
}

.SH "CONFORMING TO"
These functions are as per the withdrawn POSIX.1e draft specification.
The following functions are Linux extensions:
.BR kdk_net_get_multiple_port_stat (),
.BR kdk_net_get_port_stat (),
.BR kdk_net_get_route (),
.BR kdk_net_get_iptable_rules (),
.BR kdk_net_free_route (),
.BR kdk_net_free_chain (),
.BR kdk_net_get_proc_port (),
.BR kdk_net_get_up_port (),
.BR kdk_net_get_hosts (),
.BR kdk_net_get_hosts_domain (),
.BR kdk_net_get_resolv_conf ()
and
.BR kdk_net_freeall ().
.SH "SEE ALSO"
.BR kdk_net_get_multiple_port_stat (3),
.BR kdk_net_get_port_stat (3),
.BR kdk_net_get_route (3),
.BR kdk_net_get_iptable_rules (3),
.BR kdk_net_free_route (3),
.BR kdk_net_free_chain (3),
.BR kdk_net_get_proc_port (3),
.BR kdk_net_get_up_port (3),
.BR kdk_net_get_hosts (3),
.BR kdk_net_get_hosts_domain (3),
.BR kdk_net_get_resolv_conf (3)
and
.BR kdk_net_freeall (3).