comparison mupdf-source/thirdparty/curl/lib/doh.h @ 2:b50eed0cc0ef upstream

ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 #ifndef HEADER_CURL_DOH_H
2 #define HEADER_CURL_DOH_H
3 /***************************************************************************
4 * _ _ ____ _
5 * Project ___| | | | _ \| |
6 * / __| | | | |_) | |
7 * | (__| |_| | _ <| |___
8 * \___|\___/|_| \_\_____|
9 *
10 * Copyright (C) 2018 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
11 *
12 * This software is licensed as described in the file COPYING, which
13 * you should have received as part of this distribution. The terms
14 * are also available at https://curl.haxx.se/docs/copyright.html.
15 *
16 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
17 * copies of the Software, and permit persons to whom the Software is
18 * furnished to do so, under the terms of the COPYING file.
19 *
20 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21 * KIND, either express or implied.
22 *
23 ***************************************************************************/
24
25 #include "urldata.h"
26 #include "curl_addrinfo.h"
27
28 #ifndef CURL_DISABLE_DOH
29
30 /*
31 * Curl_doh() resolve a name using DoH (DNS-over-HTTPS). It resolves a name
32 * and returns a 'Curl_addrinfo *' with the address information.
33 */
34
35 Curl_addrinfo *Curl_doh(struct connectdata *conn,
36 const char *hostname,
37 int port,
38 int *waitp);
39
40 CURLcode Curl_doh_is_resolved(struct connectdata *conn,
41 struct Curl_dns_entry **dns);
42
43 int Curl_doh_getsock(struct connectdata *conn, curl_socket_t *socks);
44
45 typedef enum {
46 DOH_OK,
47 DOH_DNS_BAD_LABEL, /* 1 */
48 DOH_DNS_OUT_OF_RANGE, /* 2 */
49 DOH_DNS_LABEL_LOOP, /* 3 */
50 DOH_TOO_SMALL_BUFFER, /* 4 */
51 DOH_OUT_OF_MEM, /* 5 */
52 DOH_DNS_RDATA_LEN, /* 6 */
53 DOH_DNS_MALFORMAT, /* 7 */
54 DOH_DNS_BAD_RCODE, /* 8 - no such name */
55 DOH_DNS_UNEXPECTED_TYPE, /* 9 */
56 DOH_DNS_UNEXPECTED_CLASS, /* 10 */
57 DOH_NO_CONTENT, /* 11 */
58 DOH_DNS_BAD_ID /* 12 */
59 } DOHcode;
60
61 typedef enum {
62 DNS_TYPE_A = 1,
63 DNS_TYPE_NS = 2,
64 DNS_TYPE_CNAME = 5,
65 DNS_TYPE_AAAA = 28
66 } DNStype;
67
68 #define DOH_MAX_ADDR 24
69 #define DOH_MAX_CNAME 4
70
71 struct cnamestore {
72 size_t len; /* length of cname */
73 char *alloc; /* allocated pointer */
74 size_t allocsize; /* allocated size */
75 };
76
77 struct dohaddr {
78 int type;
79 union {
80 unsigned char v4[4]; /* network byte order */
81 unsigned char v6[16];
82 } ip;
83 };
84
85 struct dohentry {
86 unsigned int ttl;
87 int numaddr;
88 struct dohaddr addr[DOH_MAX_ADDR];
89 int numcname;
90 struct cnamestore cname[DOH_MAX_CNAME];
91 };
92
93
94 #ifdef DEBUGBUILD
95 DOHcode doh_encode(const char *host,
96 DNStype dnstype,
97 unsigned char *dnsp, /* buffer */
98 size_t len, /* buffer size */
99 size_t *olen); /* output length */
100 DOHcode doh_decode(unsigned char *doh,
101 size_t dohlen,
102 DNStype dnstype,
103 struct dohentry *d);
104 void de_cleanup(struct dohentry *d);
105 #endif
106
107 #else /* if DOH is disabled */
108 #define Curl_doh(a,b,c,d) NULL
109 #define Curl_doh_is_resolved(x,y) CURLE_COULDNT_RESOLVE_HOST
110 #endif
111
112 #endif /* HEADER_CURL_DOH_H */