Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/curl/lib/hostasyn.c @ 2:b50eed0cc0ef upstream

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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 /***************************************************************************
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2 * _ _ ____ _
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3 * Project ___| | | | _ \| |
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4 * / __| | | | |_) | |
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5 * | (__| |_| | _ <| |___
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6 * \___|\___/|_| \_\_____|
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7 *
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8 * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
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9 *
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10 * This software is licensed as described in the file COPYING, which
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11 * you should have received as part of this distribution. The terms
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12 * are also available at https://curl.haxx.se/docs/copyright.html.
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13 *
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14 * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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15 * copies of the Software, and permit persons to whom the Software is
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16 * furnished to do so, under the terms of the COPYING file.
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17 *
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18 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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19 * KIND, either express or implied.
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20 *
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21 ***************************************************************************/
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22
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23 #include "curl_setup.h"
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24
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25 /***********************************************************************
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26 * Only for builds using asynchronous name resolves
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27 **********************************************************************/
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28 #ifdef CURLRES_ASYNCH
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29
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30 #ifdef HAVE_NETINET_IN_H
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31 #include <netinet/in.h>
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32 #endif
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33 #ifdef HAVE_NETDB_H
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34 #include <netdb.h>
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35 #endif
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36 #ifdef HAVE_ARPA_INET_H
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37 #include <arpa/inet.h>
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38 #endif
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39 #ifdef __VMS
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40 #include <in.h>
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41 #include <inet.h>
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42 #endif
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43
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44 #ifdef HAVE_PROCESS_H
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45 #include <process.h>
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46 #endif
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47
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48 #include "urldata.h"
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49 #include "sendf.h"
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50 #include "hostip.h"
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51 #include "hash.h"
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52 #include "share.h"
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53 #include "strerror.h"
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54 #include "url.h"
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55 #include "curl_memory.h"
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56 /* The last #include file should be: */
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57 #include "memdebug.h"
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58
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59 /*
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60 * Curl_addrinfo_callback() gets called by ares, gethostbyname_thread()
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61 * or getaddrinfo_thread() when we got the name resolved (or not!).
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62 *
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63 * If the status argument is CURL_ASYNC_SUCCESS, this function takes
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64 * ownership of the Curl_addrinfo passed, storing the resolved data
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65 * in the DNS cache.
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66 *
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67 * The storage operation locks and unlocks the DNS cache.
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68 */
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69 CURLcode Curl_addrinfo_callback(struct connectdata *conn,
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70 int status,
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71 struct Curl_addrinfo *ai)
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72 {
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73 struct Curl_dns_entry *dns = NULL;
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74 CURLcode result = CURLE_OK;
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75
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76 conn->async.status = status;
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77
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78 if(CURL_ASYNC_SUCCESS == status) {
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79 if(ai) {
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80 struct Curl_easy *data = conn->data;
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81
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82 if(data->share)
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83 Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
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84
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85 dns = Curl_cache_addr(data, ai,
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86 conn->async.hostname,
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87 conn->async.port);
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88 if(data->share)
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89 Curl_share_unlock(data, CURL_LOCK_DATA_DNS);
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90
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91 if(!dns) {
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92 /* failed to store, cleanup and return error */
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93 Curl_freeaddrinfo(ai);
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94 result = CURLE_OUT_OF_MEMORY;
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95 }
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96 }
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97 else {
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98 result = CURLE_OUT_OF_MEMORY;
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99 }
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100 }
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101
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102 conn->async.dns = dns;
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103
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104 /* Set async.done TRUE last in this function since it may be used multi-
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105 threaded and once this is TRUE the other thread may read fields from the
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106 async struct */
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107 conn->async.done = TRUE;
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108
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109 /* IPv4: The input hostent struct will be freed by ares when we return from
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110 this function */
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111 return result;
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112 }
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113
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114 /*
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115 * Curl_getaddrinfo() is the generic low-level name resolve API within this
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116 * source file. There are several versions of this function - for different
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117 * name resolve layers (selected at build-time). They all take this same set
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118 * of arguments
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119 */
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120 Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn,
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121 const char *hostname,
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122 int port,
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123 int *waitp)
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124 {
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125 return Curl_resolver_getaddrinfo(conn, hostname, port, waitp);
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126 }
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127
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128 #endif /* CURLRES_ASYNCH */