calmsacibis995
35 lines
721 B
C
35 lines
721 B
C
#include <stdio.h>
|
|
#include <netdb.h>
|
|
#include <arpa/inet.h>
|
|
#include <sys/types.h>
|
|
#include <sys/socket.h>
|
|
|
|
|
|
main(int argc, char **argv)
|
|
{
|
|
struct netent n;
|
|
struct in_addr a;
|
|
long net;
|
|
int i;
|
|
char buf[4096];
|
|
|
|
for (argc--, argv++; argc > 0; argc--, argv++) {
|
|
if (inet_aton(*argv, &a)) {
|
|
net = inet_netof(a);
|
|
if (! getnetbyaddr_r(net, AF_INET, &n, buf,
|
|
sizeof(buf))) {
|
|
fprintf(stderr, "getnetbyaddr failed for [%s]\n",
|
|
*argv);
|
|
} else {
|
|
a = inet_makeaddr(n.n_net, 0);
|
|
printf("name = %s, addrtype = %d, net = %s\n",
|
|
n.n_name, n.n_addrtype, inet_ntoa(a));
|
|
for (i = 0; n.n_aliases[i]; i++) {
|
|
printf("\talias[%d]: %s\n", i,
|
|
n.n_aliases[i]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|