57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
#include <netdb.h>
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
#include <netinet/in.h>
|
|
#include <netdb.h>
|
|
|
|
extern int h_errno;
|
|
|
|
void main(){
|
|
|
|
int i, j;
|
|
struct hostent * s;
|
|
struct in_addr * in;
|
|
|
|
for( i = 0;; i++ ){
|
|
|
|
fprintf( stdout, "main: retrieveing entry[ %d ]\n", i);
|
|
|
|
if(( s = gethostent())==NULL){
|
|
|
|
fprintf( stdout, "main: gethostent() failed, errno=(%d,>%s<)\n",\
|
|
h_errno, hstrerror( errno ) );
|
|
break;
|
|
|
|
}else{
|
|
|
|
fprintf( stdout, "main: h_name->%s<\n", s->h_name );
|
|
fprintf( stdout, "main: h_length->%u<\n", s->h_length );
|
|
fprintf( stdout, "main: h_addrtype->%s<\n",\
|
|
(s->h_addrtype==AF_INET)?"AF_INET":"UNKNOWN" );
|
|
|
|
for( j = 0; s->h_aliases[ j ] != NULL; j++ ){
|
|
|
|
fprintf( stdout, "main: h_aliases[%d]->%s<\n", j,\
|
|
s->h_aliases[ j ] );
|
|
|
|
}
|
|
|
|
for( j = 0; s->h_addr_list[ j ] != NULL; j++ ){
|
|
|
|
in = (struct in_addr *)s->h_addr_list[ j ];
|
|
fprintf( stdout, "main: h_addr_list[%d]->%x<\n", j, in->s_addr );
|
|
fprintf( stdout, "main: h_addr_list[%d]->%s<\n", j,\
|
|
inet_ntoa( *in ));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|