#include <stdio.h>
#include <netdb.h>
#include <string.h>

int
resolvehost(
 const char* hostname,
 char* hostent_buff,
 int hostent_buff_len,
 struct hostent **p_hp)
{
 struct hostent hostbuf;
 struct hostent *hp = *p_hp = NULL;

 int herr = 0;
 int hres = 0;

 hres = gethostbyname_r(hostname, &hostbuf,
 hostent_buff, hostent_buff_len, &hp, &herr);

 if (NULL == hp)
 {
 fprintf(stderr, "gethostbyname_r() failed to resolve hostname [%s]", hostname);

 return NO_ADDRESS;
 }

 *p_hp = hp;
 return NETDB_SUCCESS;
}


int
mcc_sys_gethostbyname()
{
 char buff[4096];
 struct hostent *hp = NULL;
 if( resolvehost("192linvm35", buff, sizeof(buff), &hp) != NETDB_SUCCESS )
 return 1;

 /*char buff2[4096];
 struct hostent *hp2 = NULL;
 if( resolvehost("192linvm35", buff2, sizeof(buff2), &hp2) != NETDB_SUCCESS )
 return 1;*/

 char** ips = hp->h_addr_list;
 printf("%s : %s\n", hp->h_name, hp->h_aliases[0]);
 while( *ips )
 {
 unsigned char* ipfields = *ips;
 printf("%u.%u.%u.%u\n", ipfields[0], ipfields[1], ipfields[2], ipfields[3]);
 ++ips;
 }
 return 0;
}

#define NUM_THREADS 10 
int main()
{
    pthread_t threads[NUM_THREADS];
   int j;
   for( j=0; j < NUM_THREADS; j++ )
   {
      int ret = pthread_create(&threads[j],NULL,mcc_sys_gethostbyname,(void*)NULL);
      if(ret == 0)
      {
         printf("**************Currently thread %d running*************\n",j);
      }
   }
   for( j=0; j < NUM_THREADS; j++ )
   {
        int ret = pthread_join(threads[j], NULL);
        if(ret ==0)
        {
           printf("*************thread %d going to stop************\n",j);
        }

   }
   return (0);
}