small ipv6 doc changes; nslookup a tiny bit smaller
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@ -212,7 +212,8 @@ structure the code differently.
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Here's the corresponding server C code for a dual-stack platform:
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int ServSock, csock;
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struct sockaddr addr, from;
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/* struct sockaddr is too small! */
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struct sockaddr_storage addr, from;
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...
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ServSock = socket(AF_INET6, SOCK_STREAM, PF_INET6);
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bind(ServSock, &addr, sizeof(addr));
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@ -25,7 +25,6 @@ int nc_main(int argc, char **argv)
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SKIP_NC_EXTRA (const int execparam = 0;)
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USE_NC_EXTRA (char **execparam = NULL;)
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struct sockaddr_in address;
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struct hostent *hostinfo;
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fd_set readfds, testfds;
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int opt; /* must be signed (getopt returns -1) */
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@ -116,6 +115,7 @@ int nc_main(int argc, char **argv)
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if (!execparam) close(sfd);
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} else {
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struct hostent *hostinfo;
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hostinfo = xgethostbyname(argv[0]);
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address.sin_addr = *(struct in_addr *) *hostinfo->h_addr_list;
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@ -82,9 +82,10 @@ static int print_host(const char *hostname, const char *header)
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while (cur) {
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sockaddr_to_dotted(cur->ai_addr, str, sizeof(str));
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printf("%s %s\nAddress: %s", header, hostname, str);
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if (getnameinfo(cur->ai_addr, cur->ai_addrlen, str, sizeof(str), NULL, 0, NI_NAMEREQD))
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s[0] = ' ';
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if (getnameinfo(cur->ai_addr, cur->ai_addrlen, str+1, sizeof(str)-1, NULL, 0, NI_NAMEREQD))
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str[0] = '\0';
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printf(" %s\n", str);
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puts(str);
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cur = cur->ai_next;
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}
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} else {
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