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edc6f2f5 TG |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
e963e3ad | 3 | /*** |
edc6f2f5 | 4 | This file is part of systemd. |
e963e3ad DB |
5 | |
6 | Copyright 2005-2008 Lennart Poettering | |
77c98a9e | 7 | Copyright 2014 Daniel Buch |
e963e3ad | 8 | |
edc6f2f5 TG |
9 | systemd is free software; you can redistribute it and/or modify it |
10 | under the terms of the GNU Lesser General Public License as published by | |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
12 | (at your option) any later version. | |
e963e3ad | 13 | |
edc6f2f5 | 14 | systemd is distributed in the hope that it will be useful, but |
e963e3ad DB |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | Lesser General Public License for more details. | |
18 | ||
edc6f2f5 TG |
19 | You should have received a copy of the GNU Lesser General Public License |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
21 | ***/ | |
e963e3ad | 22 | |
e963e3ad | 23 | #include <arpa/inet.h> |
07630cea | 24 | #include <errno.h> |
e963e3ad | 25 | #include <netinet/in.h> |
e963e3ad | 26 | #include <resolv.h> |
07630cea LP |
27 | #include <stdio.h> |
28 | #include <string.h> | |
29 | #include <sys/socket.h> | |
e963e3ad | 30 | |
3bedba4a | 31 | #include "sd-resolve.h" |
07630cea | 32 | |
e963e3ad | 33 | #include "macro.h" |
07630cea LP |
34 | #include "resolve-util.h" |
35 | #include "socket-util.h" | |
36 | #include "string-util.h" | |
e963e3ad | 37 | |
93f1bcf4 LP |
38 | static int getaddrinfo_handler(sd_resolve_query *q, int ret, const struct addrinfo *ai, void *userdata) { |
39 | const struct addrinfo *i; | |
40 | ||
0c0cdb06 | 41 | assert_se(q); |
93f1bcf4 LP |
42 | |
43 | if (ret != 0) { | |
ff49bc32 | 44 | log_error("getaddrinfo error: %s %i", gai_strerror(ret), ret); |
93f1bcf4 LP |
45 | return 0; |
46 | } | |
47 | ||
48 | for (i = ai; i; i = i->ai_next) { | |
49 | _cleanup_free_ char *addr = NULL; | |
50 | ||
3b1c5241 | 51 | assert_se(sockaddr_pretty(i->ai_addr, i->ai_addrlen, false, true, &addr) == 0); |
93f1bcf4 LP |
52 | puts(addr); |
53 | } | |
54 | ||
55 | printf("canonical name: %s\n", strna(ai->ai_canonname)); | |
56 | ||
57 | return 0; | |
58 | } | |
59 | ||
60 | static int getnameinfo_handler(sd_resolve_query *q, int ret, const char *host, const char *serv, void *userdata) { | |
0c0cdb06 | 61 | assert_se(q); |
93f1bcf4 LP |
62 | |
63 | if (ret != 0) { | |
ff49bc32 | 64 | log_error("getnameinfo error: %s %i", gai_strerror(ret), ret); |
93f1bcf4 LP |
65 | return 0; |
66 | } | |
67 | ||
68 | printf("Host: %s -- Serv: %s\n", strna(host), strna(serv)); | |
69 | return 0; | |
70 | } | |
71 | ||
e963e3ad | 72 | int main(int argc, char *argv[]) { |
1fac0c31 | 73 | _cleanup_resolve_query_unref_ sd_resolve_query *q1 = NULL, *q2 = NULL; |
968d3d24 | 74 | _cleanup_resolve_unref_ sd_resolve *resolve = NULL; |
93f1bcf4 | 75 | int r = 0; |
77c98a9e DB |
76 | |
77 | struct addrinfo hints = { | |
78 | .ai_family = PF_UNSPEC, | |
79 | .ai_socktype = SOCK_STREAM, | |
80 | .ai_flags = AI_CANONNAME | |
81 | }; | |
82 | ||
83 | struct sockaddr_in sa = { | |
84 | .sin_family = AF_INET, | |
85 | .sin_port = htons(80) | |
86 | }; | |
e963e3ad | 87 | |
93f1bcf4 | 88 | assert_se(sd_resolve_default(&resolve) >= 0); |
e963e3ad | 89 | |
4a134c49 LP |
90 | /* Test a floating resolver query */ |
91 | sd_resolve_getaddrinfo(resolve, NULL, "redhat.com", "http", NULL, getaddrinfo_handler, NULL); | |
92 | ||
e963e3ad | 93 | /* Make a name -> address query */ |
93f1bcf4 | 94 | r = sd_resolve_getaddrinfo(resolve, &q1, argc >= 2 ? argv[1] : "www.heise.de", NULL, &hints, getaddrinfo_handler, NULL); |
968d3d24 | 95 | if (r < 0) |
279d3c9c | 96 | log_error_errno(r, "sd_resolve_getaddrinfo(): %m"); |
e963e3ad DB |
97 | |
98 | /* Make an address -> name query */ | |
93f1bcf4 LP |
99 | sa.sin_addr.s_addr = inet_addr(argc >= 3 ? argv[2] : "193.99.144.71"); |
100 | r = sd_resolve_getnameinfo(resolve, &q2, (struct sockaddr*) &sa, sizeof(sa), 0, SD_RESOLVE_GET_BOTH, getnameinfo_handler, NULL); | |
968d3d24 | 101 | if (r < 0) |
279d3c9c | 102 | log_error_errno(r, "sd_resolve_getnameinfo(): %m"); |
e963e3ad | 103 | |
1fac0c31 | 104 | /* Wait until the two queries are completed */ |
93f1bcf4 | 105 | while (sd_resolve_query_is_done(q1) == 0 || |
1fac0c31 | 106 | sd_resolve_query_is_done(q2) == 0) { |
968d3d24 LP |
107 | |
108 | r = sd_resolve_wait(resolve, (uint64_t) -1); | |
109 | if (r < 0) { | |
279d3c9c | 110 | log_error_errno(r, "sd_resolve_wait(): %m"); |
968d3d24 LP |
111 | assert_not_reached("sd_resolve_wait() failed"); |
112 | } | |
e963e3ad DB |
113 | } |
114 | ||
77c98a9e | 115 | return 0; |
e963e3ad | 116 | } |