int main(int argc, char *argv[]) { Context context = {}; int r, n, fd; log_parse_environment(); log_open(); r = parse_argv(argc, argv); if (r <= 0) goto finish; r = sd_event_default(&context.event); if (r < 0) { log_error_errno(r, "Failed to allocate event loop: %m"); goto finish; } r = sd_resolve_default(&context.resolve); if (r < 0) { log_error_errno(r, "Failed to allocate resolver: %m"); goto finish; } r = sd_resolve_attach_event(context.resolve, context.event, 0); if (r < 0) { log_error_errno(r, "Failed to attach resolver: %m"); goto finish; } sd_event_set_watchdog(context.event, true); n = sd_listen_fds(1); if (n < 0) { log_error("Failed to receive sockets from parent."); r = n; goto finish; } else if (n == 0) { log_error("Didn't get any sockets passed in."); r = -EINVAL; goto finish; } for (fd = SD_LISTEN_FDS_START; fd < SD_LISTEN_FDS_START + n; fd++) { r = add_listen_socket(&context, fd); if (r < 0) goto finish; } r = sd_event_loop(context.event); if (r < 0) { log_error_errno(r, "Failed to run event loop: %m"); goto finish; } finish: context_free(&context); return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; }
int main(int argc, char *argv[]) { _cleanup_(sd_resolve_query_unrefp) sd_resolve_query *q1 = NULL, *q2 = NULL; _cleanup_(sd_resolve_unrefp) sd_resolve *resolve = NULL; int r = 0; struct addrinfo hints = { .ai_family = PF_UNSPEC, .ai_socktype = SOCK_STREAM, .ai_flags = AI_CANONNAME }; struct sockaddr_in sa = { .sin_family = AF_INET, .sin_port = htons(80) }; assert_se(sd_resolve_default(&resolve) >= 0); /* Test a floating resolver query */ r = sd_resolve_getaddrinfo(resolve, NULL, "redhat.com", "http", NULL, getaddrinfo_handler, NULL); if (r < 0) log_error_errno(r, "sd_resolve_getaddrinfo(): %m"); /* Make a name -> address query */ r = sd_resolve_getaddrinfo(resolve, &q1, argc >= 2 ? argv[1] : "www.heise.de", NULL, &hints, getaddrinfo_handler, NULL); if (r < 0) log_error_errno(r, "sd_resolve_getaddrinfo(): %m"); /* Make an address -> name query */ sa.sin_addr.s_addr = inet_addr(argc >= 3 ? argv[2] : "193.99.144.71"); r = sd_resolve_getnameinfo(resolve, &q2, (struct sockaddr*) &sa, sizeof(sa), 0, SD_RESOLVE_GET_BOTH, getnameinfo_handler, NULL); if (r < 0) log_error_errno(r, "sd_resolve_getnameinfo(): %m"); /* Wait until all queries are completed */ for (;;) { r = sd_resolve_wait(resolve, TEST_TIMEOUT_USEC); if (r == 0) break; if (r == -ETIMEDOUT) { /* Let's catch timeouts here, so that we can run safely in a CI that has no reliable DNS. Note * that we invoke exit() directly here, as the stuck NSS call will not allow us to exit * cleanly. */ log_notice_errno(r, "sd_resolve_wait() timed out, but that's OK"); exit(EXIT_SUCCESS); } if (r < 0) { log_error_errno(r, "sd_resolve_wait(): %m"); assert_not_reached("sd_resolve_wait() failed"); } } return 0; }
int main(int argc, char *argv[]) { _cleanup_resolve_query_unref_ sd_resolve_query *q1 = NULL, *q2 = NULL, *q3 = NULL; _cleanup_resolve_unref_ sd_resolve *resolve = NULL; int r = 0; struct addrinfo hints = { .ai_family = PF_UNSPEC, .ai_socktype = SOCK_STREAM, .ai_flags = AI_CANONNAME }; struct sockaddr_in sa = { .sin_family = AF_INET, .sin_port = htons(80) }; assert_se(sd_resolve_default(&resolve) >= 0); /* Make a name -> address query */ r = sd_resolve_getaddrinfo(resolve, &q1, argc >= 2 ? argv[1] : "www.heise.de", NULL, &hints, getaddrinfo_handler, NULL); if (r < 0) log_error("sd_resolve_getaddrinfo(): %s\n", strerror(-r)); /* Make an address -> name query */ sa.sin_addr.s_addr = inet_addr(argc >= 3 ? argv[2] : "193.99.144.71"); r = sd_resolve_getnameinfo(resolve, &q2, (struct sockaddr*) &sa, sizeof(sa), 0, SD_RESOLVE_GET_BOTH, getnameinfo_handler, NULL); if (r < 0) log_error("sd_resolve_getnameinfo(): %s\n", strerror(-r)); /* Make a res_query() call */ r = sd_resolve_res_query(resolve, &q3, "_xmpp-client._tcp.gmail.com", C_IN, T_SRV, res_handler, NULL); if (r < 0) log_error("sd_resolve_res_query(): %s\n", strerror(-r)); /* Wait until the three queries are completed */ while (sd_resolve_query_is_done(q1) == 0 || sd_resolve_query_is_done(q2) == 0 || sd_resolve_query_is_done(q3) == 0) { r = sd_resolve_wait(resolve, (uint64_t) -1); if (r < 0) { log_error("sd_resolve_wait(): %s\n", strerror(-r)); assert_not_reached("sd_resolve_wait() failed"); } } return 0; }
int main(int argc, char *argv[]) { _cleanup_(sd_resolve_query_unrefp) sd_resolve_query *q1 = NULL, *q2 = NULL; _cleanup_(sd_resolve_unrefp) sd_resolve *resolve = NULL; int r = 0; struct addrinfo hints = { .ai_family = PF_UNSPEC, .ai_socktype = SOCK_STREAM, .ai_flags = AI_CANONNAME }; struct sockaddr_in sa = { .sin_family = AF_INET, .sin_port = htons(80) }; assert_se(sd_resolve_default(&resolve) >= 0); /* Test a floating resolver query */ sd_resolve_getaddrinfo(resolve, NULL, "redhat.com", "http", NULL, getaddrinfo_handler, NULL); /* Make a name -> address query */ r = sd_resolve_getaddrinfo(resolve, &q1, argc >= 2 ? argv[1] : "www.heise.de", NULL, &hints, getaddrinfo_handler, NULL); if (r < 0) log_error_errno(r, "sd_resolve_getaddrinfo(): %m"); /* Make an address -> name query */ sa.sin_addr.s_addr = inet_addr(argc >= 3 ? argv[2] : "193.99.144.71"); r = sd_resolve_getnameinfo(resolve, &q2, (struct sockaddr*) &sa, sizeof(sa), 0, SD_RESOLVE_GET_BOTH, getnameinfo_handler, NULL); if (r < 0) log_error_errno(r, "sd_resolve_getnameinfo(): %m"); /* Wait until the two queries are completed */ while (sd_resolve_query_is_done(q1) == 0 || sd_resolve_query_is_done(q2) == 0) { r = sd_resolve_wait(resolve, (uint64_t) -1); if (r < 0) { log_error_errno(r, "sd_resolve_wait(): %m"); assert_not_reached("sd_resolve_wait() failed"); } } return 0; }