ap/app/c-ares/test_call.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <ares.h>
#include <sys/time.h>
#include <fcntl.h>
int dns_with_cid(char *name, int cid, int family)
{
    struct hostent *host = NULL;
    char *dev = malloc(10);
    char num[3] = "";
    char *ptr, **pptr;
    char str[30];
    memset(dev, 0, 10);
    sc_cfg_get("pswan", dev, 10); 
    sprintf(num, "%d", cid);
    strcat(dev, num);
    printf("dev : %s\n", dev);
    host = compat_gethostbyname3(name, dev, family);
    if(host != NULL){
        printf("host->h_name = %s\n", host->h_name);
        if(host->h_aliases){
            for(pptr = host->h_aliases; *pptr != NULL; pptr++)
                printf("\talias:%s\n", *pptr);
            }
        else 
            printf("no aliase\n");
        if(host->h_addrtype){
            switch(host->h_addrtype){
            case AF_INET:
                pptr =  host->h_addr_list;
                for(; *pptr != NULL; pptr++)
                    printf("\t address: %s \n", inet_ntop(AF_INET, *pptr, str, sizeof(str)));
            break;
            }
        }else {
            printf("no h_addr_list\n");
        }
        free_hostent(host);
    }
    return 1;
}
int main(int argc, char **argv)
{
    char *dev = malloc(5);
    char name[20] = "www.baidu.com";
    dns_with_cid(name, 1, AF_INET);
    return 0;
  }