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3bedba4a TG |
1 | #ifndef foosdresolvehfoo |
2 | #define foosdresolvehfoo | |
e963e3ad DB |
3 | |
4 | /*** | |
1783d897 | 5 | This file is part of systemd. |
e963e3ad | 6 | |
968d3d24 | 7 | Copyright 2005-2014 Lennart Poettering |
e963e3ad | 8 | |
1783d897 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 | |
1783d897 | 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 | ||
1783d897 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/>. | |
e963e3ad DB |
21 | ***/ |
22 | ||
04c01369 | 23 | #include <inttypes.h> |
e963e3ad | 24 | #include <netdb.h> |
04c01369 LP |
25 | #include <sys/socket.h> |
26 | #include <sys/types.h> | |
968d3d24 | 27 | |
93f1bcf4 | 28 | #include "sd-event.h" |
71d35b6b | 29 | |
04c01369 | 30 | #include "_sd-common.h" |
1783d897 TG |
31 | |
32 | _SD_BEGIN_DECLARATIONS; | |
33 | ||
93f1bcf4 | 34 | /* An opaque sd-resolve session structure */ |
4f809256 | 35 | typedef struct sd_resolve sd_resolve; |
e963e3ad | 36 | |
93f1bcf4 | 37 | /* An opaque sd-resolve query structure */ |
4f809256 | 38 | typedef struct sd_resolve_query sd_resolve_query; |
e963e3ad | 39 | |
93f1bcf4 LP |
40 | /* A callback on completion */ |
41 | typedef int (*sd_resolve_getaddrinfo_handler_t)(sd_resolve_query *q, int ret, const struct addrinfo *ai, void *userdata); | |
42 | typedef int (*sd_resolve_getnameinfo_handler_t)(sd_resolve_query *q, int ret, const char *host, const char *serv, void *userdata); | |
93f1bcf4 LP |
43 | |
44 | enum { | |
0645ce61 LP |
45 | SD_RESOLVE_GET_HOST = UINT64_C(1), |
46 | SD_RESOLVE_GET_SERVICE = UINT64_C(2), | |
47 | SD_RESOLVE_GET_BOTH = UINT64_C(3), | |
93f1bcf4 LP |
48 | }; |
49 | ||
50 | int sd_resolve_default(sd_resolve **ret); | |
51 | ||
52 | /* Allocate a new sd-resolve session. */ | |
968d3d24 | 53 | int sd_resolve_new(sd_resolve **ret); |
e963e3ad | 54 | |
93f1bcf4 | 55 | /* Free a sd-resolve session. This destroys all attached |
10b17992 | 56 | * sd_resolve_query objects automatically. */ |
968d3d24 | 57 | sd_resolve* sd_resolve_unref(sd_resolve *resolve); |
93f1bcf4 | 58 | sd_resolve* sd_resolve_ref(sd_resolve *resolve); |
968d3d24 | 59 | |
93f1bcf4 | 60 | /* Return the UNIX file descriptor to poll() for events on. Use this |
968d3d24 LP |
61 | * function to integrate sd-resolve with your custom main loop. */ |
62 | int sd_resolve_get_fd(sd_resolve *resolve); | |
63 | ||
93f1bcf4 | 64 | /* Return the poll() events (a combination of flags like POLLIN, |
968d3d24 LP |
65 | * POLLOUT, ...) to check for. */ |
66 | int sd_resolve_get_events(sd_resolve *resolve); | |
e963e3ad | 67 | |
93f1bcf4 | 68 | /* Return the poll() timeout to pass. Returns (uint64_t) -1 as |
10b17992 | 69 | * timeout if no timeout is needed. */ |
968d3d24 | 70 | int sd_resolve_get_timeout(sd_resolve *resolve, uint64_t *timeout_usec); |
e963e3ad | 71 | |
93f1bcf4 | 72 | /* Process pending responses. After this function is called, you can |
968d3d24 LP |
73 | * get the next completed query object(s) using |
74 | * sd_resolve_get_next(). */ | |
75 | int sd_resolve_process(sd_resolve *resolve); | |
76 | ||
93f1bcf4 | 77 | /* Wait for a resolve event to complete. */ |
968d3d24 | 78 | int sd_resolve_wait(sd_resolve *resolve, uint64_t timeout_usec); |
e963e3ad | 79 | |
93f1bcf4 LP |
80 | int sd_resolve_get_tid(sd_resolve *resolve, pid_t *tid); |
81 | ||
82 | int sd_resolve_attach_event(sd_resolve *resolve, sd_event *e, int priority); | |
83 | int sd_resolve_detach_event(sd_resolve *resolve); | |
84 | sd_event *sd_resolve_get_event(sd_resolve *resolve); | |
85 | ||
86 | /* Issue a name-to-address query on the specified session. The | |
10b17992 | 87 | * arguments are compatible with those of libc's |
e963e3ad | 88 | * getaddrinfo(3). The function returns a new query object. When the |
10b17992 | 89 | * query is completed, you may retrieve the results using |
968d3d24 | 90 | * sd_resolve_getaddrinfo_done(). */ |
93f1bcf4 LP |
91 | 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); |
92 | ||
93 | /* Issue an address-to-name query on the specified session. The | |
10b17992 | 94 | * arguments are compatible with those of libc's |
e963e3ad | 95 | * getnameinfo(3). The function returns a new query object. When the |
10b17992 | 96 | * query is completed, you may retrieve the results using |
3bedba4a | 97 | * sd_resolve_getnameinfo_done(). Set gethost (resp. getserv) to non-zero |
e963e3ad | 98 | * if you want to query the hostname (resp. the service name). */ |
93f1bcf4 | 99 | 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 | 100 | |
93f1bcf4 LP |
101 | sd_resolve_query *sd_resolve_query_ref(sd_resolve_query* q); |
102 | sd_resolve_query *sd_resolve_query_unref(sd_resolve_query* q); | |
103 | ||
104 | /* Returns non-zero when the query operation specified by q has been completed. */ | |
105 | int sd_resolve_query_is_done(sd_resolve_query*q); | |
106 | ||
107 | void *sd_resolve_query_get_userdata(sd_resolve_query *q); | |
108 | void *sd_resolve_query_set_userdata(sd_resolve_query *q, void *userdata); | |
109 | ||
110 | sd_resolve *sd_resolve_query_get_resolve(sd_resolve_query *q); | |
e963e3ad | 111 | |
4afd3348 LP |
112 | _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_resolve, sd_resolve_unref); |
113 | _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_resolve_query, sd_resolve_query_unref); | |
114 | ||
1783d897 TG |
115 | _SD_END_DECLARATIONS; |
116 | ||
e963e3ad | 117 | #endif |