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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
e963e3ad | 2 | |
e963e3ad | 3 | #include <arpa/inet.h> |
07630cea | 4 | #include <errno.h> |
e963e3ad | 5 | #include <netinet/in.h> |
e963e3ad | 6 | #include <resolv.h> |
07630cea | 7 | #include <stdio.h> |
e963e3ad | 8 | |
3bedba4a | 9 | #include "sd-resolve.h" |
07630cea | 10 | |
b5efdb8a | 11 | #include "alloc-util.h" |
e963e3ad | 12 | #include "macro.h" |
07630cea LP |
13 | #include "socket-util.h" |
14 | #include "string-util.h" | |
ef118d00 | 15 | #include "time-util.h" |
e963e3ad | 16 | |
5bf5510b LP |
17 | #define TEST_TIMEOUT_USEC (20*USEC_PER_SEC) |
18 | ||
93f1bcf4 LP |
19 | static int getaddrinfo_handler(sd_resolve_query *q, int ret, const struct addrinfo *ai, void *userdata) { |
20 | const struct addrinfo *i; | |
21 | ||
0c0cdb06 | 22 | assert_se(q); |
93f1bcf4 LP |
23 | |
24 | if (ret != 0) { | |
ff49bc32 | 25 | log_error("getaddrinfo error: %s %i", gai_strerror(ret), ret); |
93f1bcf4 LP |
26 | return 0; |
27 | } | |
28 | ||
29 | for (i = ai; i; i = i->ai_next) { | |
30 | _cleanup_free_ char *addr = NULL; | |
31 | ||
3b1c5241 | 32 | assert_se(sockaddr_pretty(i->ai_addr, i->ai_addrlen, false, true, &addr) == 0); |
93f1bcf4 LP |
33 | puts(addr); |
34 | } | |
35 | ||
36 | printf("canonical name: %s\n", strna(ai->ai_canonname)); | |
37 | ||
38 | return 0; | |
39 | } | |
40 | ||
41 | static int getnameinfo_handler(sd_resolve_query *q, int ret, const char *host, const char *serv, void *userdata) { | |
0c0cdb06 | 42 | assert_se(q); |
93f1bcf4 LP |
43 | |
44 | if (ret != 0) { | |
ff49bc32 | 45 | log_error("getnameinfo error: %s %i", gai_strerror(ret), ret); |
93f1bcf4 LP |
46 | return 0; |
47 | } | |
48 | ||
ccddd104 | 49 | printf("Host: %s — Serv: %s\n", strna(host), strna(serv)); |
93f1bcf4 LP |
50 | return 0; |
51 | } | |
52 | ||
e963e3ad | 53 | int main(int argc, char *argv[]) { |
4afd3348 LP |
54 | _cleanup_(sd_resolve_query_unrefp) sd_resolve_query *q1 = NULL, *q2 = NULL; |
55 | _cleanup_(sd_resolve_unrefp) sd_resolve *resolve = NULL; | |
6d95e7d9 | 56 | int r; |
77c98a9e DB |
57 | |
58 | struct addrinfo hints = { | |
59 | .ai_family = PF_UNSPEC, | |
60 | .ai_socktype = SOCK_STREAM, | |
61 | .ai_flags = AI_CANONNAME | |
62 | }; | |
63 | ||
64 | struct sockaddr_in sa = { | |
65 | .sin_family = AF_INET, | |
66 | .sin_port = htons(80) | |
67 | }; | |
e963e3ad | 68 | |
93f1bcf4 | 69 | assert_se(sd_resolve_default(&resolve) >= 0); |
e963e3ad | 70 | |
4a134c49 | 71 | /* Test a floating resolver query */ |
48eae2e4 YW |
72 | r = sd_resolve_getaddrinfo(resolve, NULL, "redhat.com", "http", NULL, getaddrinfo_handler, NULL); |
73 | if (r < 0) | |
74 | log_error_errno(r, "sd_resolve_getaddrinfo(): %m"); | |
4a134c49 | 75 | |
e963e3ad | 76 | /* Make a name -> address query */ |
93f1bcf4 | 77 | r = sd_resolve_getaddrinfo(resolve, &q1, argc >= 2 ? argv[1] : "www.heise.de", NULL, &hints, getaddrinfo_handler, NULL); |
968d3d24 | 78 | if (r < 0) |
279d3c9c | 79 | log_error_errno(r, "sd_resolve_getaddrinfo(): %m"); |
e963e3ad DB |
80 | |
81 | /* Make an address -> name query */ | |
93f1bcf4 LP |
82 | sa.sin_addr.s_addr = inet_addr(argc >= 3 ? argv[2] : "193.99.144.71"); |
83 | r = sd_resolve_getnameinfo(resolve, &q2, (struct sockaddr*) &sa, sizeof(sa), 0, SD_RESOLVE_GET_BOTH, getnameinfo_handler, NULL); | |
968d3d24 | 84 | if (r < 0) |
279d3c9c | 85 | log_error_errno(r, "sd_resolve_getnameinfo(): %m"); |
e963e3ad | 86 | |
1e87f1f2 EV |
87 | /* Wait until all queries are completed */ |
88 | for (;;) { | |
5bf5510b | 89 | r = sd_resolve_wait(resolve, TEST_TIMEOUT_USEC); |
1e87f1f2 EV |
90 | if (r == 0) |
91 | break; | |
5bf5510b | 92 | if (r == -ETIMEDOUT) { |
3f9a0a52 | 93 | /* Let's catch timeouts here, so that we can run safely in a CI that has no reliable DNS. Note |
5bf5510b LP |
94 | * that we invoke exit() directly here, as the stuck NSS call will not allow us to exit |
95 | * cleanly. */ | |
96 | ||
97 | log_notice_errno(r, "sd_resolve_wait() timed out, but that's OK"); | |
98 | exit(EXIT_SUCCESS); | |
5bf5510b | 99 | } |
968d3d24 | 100 | if (r < 0) { |
279d3c9c | 101 | log_error_errno(r, "sd_resolve_wait(): %m"); |
968d3d24 LP |
102 | assert_not_reached("sd_resolve_wait() failed"); |
103 | } | |
e963e3ad DB |
104 | } |
105 | ||
77c98a9e | 106 | return 0; |
e963e3ad | 107 | } |