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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
3bedba4a TG |
2 | #ifndef foosdresolvehfoo |
3 | #define foosdresolvehfoo | |
e963e3ad DB |
4 | |
5 | /*** | |
1783d897 TG |
6 | systemd is free software; you can redistribute it and/or modify it |
7 | under the terms of the GNU Lesser General Public License as published by | |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
9 | (at your option) any later version. | |
e963e3ad | 10 | |
1783d897 | 11 | systemd is distributed in the hope that it will be useful, but |
e963e3ad DB |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
1783d897 TG |
16 | You should have received a copy of the GNU Lesser General Public License |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
e963e3ad DB |
18 | ***/ |
19 | ||
35f2cb28 YW |
20 | /* 'struct addrinfo' needs _GNU_SOURCE */ |
21 | #ifndef _GNU_SOURCE | |
22 | #define _GNU_SOURCE 1 | |
23 | #endif | |
24 | ||
04c01369 | 25 | #include <inttypes.h> |
e963e3ad | 26 | #include <netdb.h> |
04c01369 LP |
27 | #include <sys/socket.h> |
28 | #include <sys/types.h> | |
968d3d24 | 29 | |
93f1bcf4 | 30 | #include "sd-event.h" |
71d35b6b | 31 | |
04c01369 | 32 | #include "_sd-common.h" |
1783d897 TG |
33 | |
34 | _SD_BEGIN_DECLARATIONS; | |
35 | ||
93f1bcf4 | 36 | /* An opaque sd-resolve session structure */ |
4f809256 | 37 | typedef struct sd_resolve sd_resolve; |
e963e3ad | 38 | |
93f1bcf4 | 39 | /* An opaque sd-resolve query structure */ |
4f809256 | 40 | typedef struct sd_resolve_query sd_resolve_query; |
e963e3ad | 41 | |
93f1bcf4 LP |
42 | /* A callback on completion */ |
43 | typedef int (*sd_resolve_getaddrinfo_handler_t)(sd_resolve_query *q, int ret, const struct addrinfo *ai, void *userdata); | |
44 | typedef int (*sd_resolve_getnameinfo_handler_t)(sd_resolve_query *q, int ret, const char *host, const char *serv, void *userdata); | |
deae09cc | 45 | typedef _sd_destroy_t sd_resolve_destroy_t; |
93f1bcf4 LP |
46 | |
47 | enum { | |
9b505bc2 ZJS |
48 | SD_RESOLVE_GET_HOST = 1 << 0, |
49 | SD_RESOLVE_GET_SERVICE = 1 << 1, | |
50 | SD_RESOLVE_GET_BOTH = SD_RESOLVE_GET_HOST | SD_RESOLVE_GET_SERVICE, | |
93f1bcf4 LP |
51 | }; |
52 | ||
53 | int sd_resolve_default(sd_resolve **ret); | |
54 | ||
55 | /* Allocate a new sd-resolve session. */ | |
968d3d24 | 56 | int sd_resolve_new(sd_resolve **ret); |
e963e3ad | 57 | |
93f1bcf4 | 58 | /* Free a sd-resolve session. This destroys all attached |
10b17992 | 59 | * sd_resolve_query objects automatically. */ |
968d3d24 | 60 | sd_resolve* sd_resolve_unref(sd_resolve *resolve); |
93f1bcf4 | 61 | sd_resolve* sd_resolve_ref(sd_resolve *resolve); |
968d3d24 | 62 | |
93f1bcf4 | 63 | /* Return the UNIX file descriptor to poll() for events on. Use this |
968d3d24 LP |
64 | * function to integrate sd-resolve with your custom main loop. */ |
65 | int sd_resolve_get_fd(sd_resolve *resolve); | |
66 | ||
93f1bcf4 | 67 | /* Return the poll() events (a combination of flags like POLLIN, |
968d3d24 LP |
68 | * POLLOUT, ...) to check for. */ |
69 | int sd_resolve_get_events(sd_resolve *resolve); | |
e963e3ad | 70 | |
93f1bcf4 | 71 | /* Return the poll() timeout to pass. Returns (uint64_t) -1 as |
10b17992 | 72 | * timeout if no timeout is needed. */ |
968d3d24 | 73 | int sd_resolve_get_timeout(sd_resolve *resolve, uint64_t *timeout_usec); |
e963e3ad | 74 | |
93f1bcf4 | 75 | /* Process pending responses. After this function is called, you can |
968d3d24 LP |
76 | * get the next completed query object(s) using |
77 | * sd_resolve_get_next(). */ | |
78 | int sd_resolve_process(sd_resolve *resolve); | |
79 | ||
93f1bcf4 | 80 | /* Wait for a resolve event to complete. */ |
968d3d24 | 81 | int sd_resolve_wait(sd_resolve *resolve, uint64_t timeout_usec); |
e963e3ad | 82 | |
93f1bcf4 LP |
83 | int sd_resolve_get_tid(sd_resolve *resolve, pid_t *tid); |
84 | ||
32d20645 | 85 | int sd_resolve_attach_event(sd_resolve *resolve, sd_event *e, int64_t priority); |
93f1bcf4 LP |
86 | int sd_resolve_detach_event(sd_resolve *resolve); |
87 | sd_event *sd_resolve_get_event(sd_resolve *resolve); | |
88 | ||
89 | /* Issue a name-to-address query on the specified session. The | |
10b17992 | 90 | * arguments are compatible with those of libc's |
e963e3ad | 91 | * getaddrinfo(3). The function returns a new query object. When the |
10b17992 | 92 | * query is completed, you may retrieve the results using |
968d3d24 | 93 | * sd_resolve_getaddrinfo_done(). */ |
93f1bcf4 LP |
94 | int sd_resolve_getaddrinfo(sd_resolve *resolve, sd_resolve_query **q, const char *node, const char *service, const struct addrinfo *hints, sd_resolve_getaddrinfo_handler_t callback, void *userdata); |
95 | ||
96 | /* Issue an address-to-name query on the specified session. The | |
10b17992 | 97 | * arguments are compatible with those of libc's |
e963e3ad | 98 | * getnameinfo(3). The function returns a new query object. When the |
10b17992 | 99 | * query is completed, you may retrieve the results using |
3bedba4a | 100 | * sd_resolve_getnameinfo_done(). Set gethost (resp. getserv) to non-zero |
e963e3ad | 101 | * if you want to query the hostname (resp. the service name). */ |
93f1bcf4 | 102 | int sd_resolve_getnameinfo(sd_resolve *resolve, sd_resolve_query **q, const struct sockaddr *sa, socklen_t salen, int flags, uint64_t get, sd_resolve_getnameinfo_handler_t callback, void *userdata); |
e963e3ad | 103 | |
f2a3de01 YW |
104 | sd_resolve_query *sd_resolve_query_ref(sd_resolve_query *q); |
105 | sd_resolve_query *sd_resolve_query_unref(sd_resolve_query *q); | |
93f1bcf4 LP |
106 | |
107 | /* Returns non-zero when the query operation specified by q has been completed. */ | |
f2a3de01 | 108 | int sd_resolve_query_is_done(sd_resolve_query *q); |
93f1bcf4 LP |
109 | |
110 | void *sd_resolve_query_get_userdata(sd_resolve_query *q); | |
111 | void *sd_resolve_query_set_userdata(sd_resolve_query *q, void *userdata); | |
a8319dea YW |
112 | int sd_resolve_query_get_destroy_callback(sd_resolve_query *q, sd_resolve_destroy_t *destroy_callback); |
113 | int sd_resolve_query_set_destroy_callback(sd_resolve_query *q, sd_resolve_destroy_t destroy_callback); | |
b3ae7237 YW |
114 | int sd_resolve_query_get_floating(sd_resolve_query *q); |
115 | int sd_resolve_query_set_floating(sd_resolve_query *q, int b); | |
93f1bcf4 LP |
116 | |
117 | sd_resolve *sd_resolve_query_get_resolve(sd_resolve_query *q); | |
e963e3ad | 118 | |
4afd3348 LP |
119 | _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_resolve, sd_resolve_unref); |
120 | _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_resolve_query, sd_resolve_query_unref); | |
121 | ||
1783d897 TG |
122 | _SD_END_DECLARATIONS; |
123 | ||
e963e3ad | 124 | #endif |