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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
e963e3ad | 2 | /*** |
edc6f2f5 | 3 | This file is part of systemd. |
e963e3ad DB |
4 | |
5 | Copyright 2005-2008 Lennart Poettering | |
77c98a9e | 6 | Copyright 2014 Daniel Buch |
edc6f2f5 | 7 | ***/ |
e963e3ad | 8 | |
e963e3ad | 9 | #include <arpa/inet.h> |
07630cea | 10 | #include <errno.h> |
e963e3ad | 11 | #include <netinet/in.h> |
e963e3ad | 12 | #include <resolv.h> |
07630cea LP |
13 | #include <stdio.h> |
14 | #include <string.h> | |
15 | #include <sys/socket.h> | |
e963e3ad | 16 | |
3bedba4a | 17 | #include "sd-resolve.h" |
07630cea | 18 | |
b5efdb8a | 19 | #include "alloc-util.h" |
e963e3ad | 20 | #include "macro.h" |
07630cea LP |
21 | #include "socket-util.h" |
22 | #include "string-util.h" | |
e963e3ad | 23 | |
5bf5510b LP |
24 | #define TEST_TIMEOUT_USEC (20*USEC_PER_SEC) |
25 | ||
93f1bcf4 LP |
26 | static int getaddrinfo_handler(sd_resolve_query *q, int ret, const struct addrinfo *ai, void *userdata) { |
27 | const struct addrinfo *i; | |
28 | ||
0c0cdb06 | 29 | assert_se(q); |
93f1bcf4 LP |
30 | |
31 | if (ret != 0) { | |
ff49bc32 | 32 | log_error("getaddrinfo error: %s %i", gai_strerror(ret), ret); |
93f1bcf4 LP |
33 | return 0; |
34 | } | |
35 | ||
36 | for (i = ai; i; i = i->ai_next) { | |
37 | _cleanup_free_ char *addr = NULL; | |
38 | ||
3b1c5241 | 39 | assert_se(sockaddr_pretty(i->ai_addr, i->ai_addrlen, false, true, &addr) == 0); |
93f1bcf4 LP |
40 | puts(addr); |
41 | } | |
42 | ||
43 | printf("canonical name: %s\n", strna(ai->ai_canonname)); | |
44 | ||
45 | return 0; | |
46 | } | |
47 | ||
48 | static int getnameinfo_handler(sd_resolve_query *q, int ret, const char *host, const char *serv, void *userdata) { | |
0c0cdb06 | 49 | assert_se(q); |
93f1bcf4 LP |
50 | |
51 | if (ret != 0) { | |
ff49bc32 | 52 | log_error("getnameinfo error: %s %i", gai_strerror(ret), ret); |
93f1bcf4 LP |
53 | return 0; |
54 | } | |
55 | ||
ccddd104 | 56 | printf("Host: %s — Serv: %s\n", strna(host), strna(serv)); |
93f1bcf4 LP |
57 | return 0; |
58 | } | |
59 | ||
e963e3ad | 60 | int main(int argc, char *argv[]) { |
4afd3348 LP |
61 | _cleanup_(sd_resolve_query_unrefp) sd_resolve_query *q1 = NULL, *q2 = NULL; |
62 | _cleanup_(sd_resolve_unrefp) sd_resolve *resolve = NULL; | |
93f1bcf4 | 63 | int r = 0; |
77c98a9e DB |
64 | |
65 | struct addrinfo hints = { | |
66 | .ai_family = PF_UNSPEC, | |
67 | .ai_socktype = SOCK_STREAM, | |
68 | .ai_flags = AI_CANONNAME | |
69 | }; | |
70 | ||
71 | struct sockaddr_in sa = { | |
72 | .sin_family = AF_INET, | |
73 | .sin_port = htons(80) | |
74 | }; | |
e963e3ad | 75 | |
93f1bcf4 | 76 | assert_se(sd_resolve_default(&resolve) >= 0); |
e963e3ad | 77 | |
4a134c49 | 78 | /* Test a floating resolver query */ |
48eae2e4 YW |
79 | r = sd_resolve_getaddrinfo(resolve, NULL, "redhat.com", "http", NULL, getaddrinfo_handler, NULL); |
80 | if (r < 0) | |
81 | log_error_errno(r, "sd_resolve_getaddrinfo(): %m"); | |
4a134c49 | 82 | |
e963e3ad | 83 | /* Make a name -> address query */ |
93f1bcf4 | 84 | r = sd_resolve_getaddrinfo(resolve, &q1, argc >= 2 ? argv[1] : "www.heise.de", NULL, &hints, getaddrinfo_handler, NULL); |
968d3d24 | 85 | if (r < 0) |
279d3c9c | 86 | log_error_errno(r, "sd_resolve_getaddrinfo(): %m"); |
e963e3ad DB |
87 | |
88 | /* Make an address -> name query */ | |
93f1bcf4 LP |
89 | sa.sin_addr.s_addr = inet_addr(argc >= 3 ? argv[2] : "193.99.144.71"); |
90 | r = sd_resolve_getnameinfo(resolve, &q2, (struct sockaddr*) &sa, sizeof(sa), 0, SD_RESOLVE_GET_BOTH, getnameinfo_handler, NULL); | |
968d3d24 | 91 | if (r < 0) |
279d3c9c | 92 | log_error_errno(r, "sd_resolve_getnameinfo(): %m"); |
e963e3ad | 93 | |
1e87f1f2 EV |
94 | /* Wait until all queries are completed */ |
95 | for (;;) { | |
5bf5510b | 96 | r = sd_resolve_wait(resolve, TEST_TIMEOUT_USEC); |
1e87f1f2 EV |
97 | if (r == 0) |
98 | break; | |
5bf5510b LP |
99 | if (r == -ETIMEDOUT) { |
100 | /* Let's catch time-outs here, so that we can run safely in a CI that has no reliable DNS. Note | |
101 | * that we invoke exit() directly here, as the stuck NSS call will not allow us to exit | |
102 | * cleanly. */ | |
103 | ||
104 | log_notice_errno(r, "sd_resolve_wait() timed out, but that's OK"); | |
105 | exit(EXIT_SUCCESS); | |
106 | break; | |
107 | } | |
968d3d24 | 108 | if (r < 0) { |
279d3c9c | 109 | log_error_errno(r, "sd_resolve_wait(): %m"); |
968d3d24 LP |
110 | assert_not_reached("sd_resolve_wait() failed"); |
111 | } | |
e963e3ad DB |
112 | } |
113 | ||
77c98a9e | 114 | return 0; |
e963e3ad | 115 | } |