1 | /* vi: set sw=4 ts=4: */
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2 | /*
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3 | * whois - tiny client for the whois directory service
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4 | *
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5 | * Copyright (c) 2011 Pere Orga <gotrunks@gmail.com>
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6 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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7 | */
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8 | /* TODO
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9 | * Add ipv6 support
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10 | * Add proxy support
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11 | */
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12 |
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13 | //config:config WHOIS
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14 | //config: bool "whois"
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15 | //config: default y
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16 | //config: help
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17 | //config: whois is a client for the whois directory service
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18 |
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19 | //applet:IF_WHOIS(APPLET(whois, BB_DIR_USR_BIN, BB_SUID_DROP))
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20 |
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21 | //kbuild:lib-$(CONFIG_WHOIS) += whois.o
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22 |
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23 | //usage:#define whois_trivial_usage
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24 | //usage: "[-h SERVER] [-p PORT] NAME..."
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25 | //usage:#define whois_full_usage "\n\n"
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26 | //usage: "Query WHOIS info about NAME\n"
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27 | //usage: "\n -h,-p Server to query"
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28 |
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29 | #include "libbb.h"
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30 |
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31 | static void pipe_out(int fd)
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32 | {
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33 | FILE *fp;
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34 | char buf[1024];
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35 |
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36 | fp = xfdopen_for_read(fd);
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37 | while (fgets(buf, sizeof(buf), fp)) {
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38 | char *p = strpbrk(buf, "\r\n");
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39 | if (p)
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40 | *p = '\0';
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41 | puts(buf);
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42 | }
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43 |
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44 | fclose(fp); /* closes fd too */
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45 | }
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46 |
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47 | int whois_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
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48 | int whois_main(int argc UNUSED_PARAM, char **argv)
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49 | {
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50 | int port = 43;
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51 | const char *host = "whois-servers.net";
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52 |
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53 | opt_complementary = "-1:p+";
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54 | getopt32(argv, "h:p:", &host, &port);
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55 |
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56 | argv += optind;
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57 | do {
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58 | int fd = create_and_connect_stream_or_die(host, port);
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59 | fdprintf(fd, "%s\r\n", *argv);
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60 | pipe_out(fd);
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61 | }
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62 | while (*++argv);
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63 |
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64 | return EXIT_SUCCESS;
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65 | }
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