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