[337] | 1 | #ifndef __CURL_TYPECHECK_GCC_H
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| 2 | #define __CURL_TYPECHECK_GCC_H
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| 3 | /***************************************************************************
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| 4 | * _ _ ____ _
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| 5 | * Project ___| | | | _ \| |
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| 6 | * / __| | | | |_) | |
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| 7 | * | (__| |_| | _ <| |___
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| 8 | * \___|\___/|_| \_\_____|
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| 9 | *
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| 10 | * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
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| 11 | *
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| 12 | * This software is licensed as described in the file COPYING, which
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| 13 | * you should have received as part of this distribution. The terms
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| 14 | * are also available at https://curl.haxx.se/docs/copyright.html.
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| 15 | *
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| 16 | * You may opt to use, copy, modify, merge, publish, distribute and/or sell
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| 17 | * copies of the Software, and permit persons to whom the Software is
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| 18 | * furnished to do so, under the terms of the COPYING file.
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| 19 | *
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| 20 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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| 21 | * KIND, either express or implied.
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| 22 | *
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| 23 | ***************************************************************************/
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| 24 |
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| 25 | /* wraps curl_easy_setopt() with typechecking */
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| 26 |
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| 27 | /* To add a new kind of warning, add an
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| 28 | * if(_curl_is_sometype_option(_curl_opt))
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| 29 | * if(!_curl_is_sometype(value))
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| 30 | * _curl_easy_setopt_err_sometype();
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| 31 | * block and define _curl_is_sometype_option, _curl_is_sometype and
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| 32 | * _curl_easy_setopt_err_sometype below
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| 33 | *
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| 34 | * NOTE: We use two nested 'if' statements here instead of the && operator, in
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| 35 | * order to work around gcc bug #32061. It affects only gcc 4.3.x/4.4.x
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| 36 | * when compiling with -Wlogical-op.
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| 37 | *
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| 38 | * To add an option that uses the same type as an existing option, you'll just
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| 39 | * need to extend the appropriate _curl_*_option macro
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| 40 | */
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| 41 | #define curl_easy_setopt(handle, option, value) \
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| 42 | __extension__ ({ \
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| 43 | __typeof__(option) _curl_opt = option; \
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| 44 | if(__builtin_constant_p(_curl_opt)) { \
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| 45 | if(_curl_is_long_option(_curl_opt)) \
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| 46 | if(!_curl_is_long(value)) \
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| 47 | _curl_easy_setopt_err_long(); \
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| 48 | if(_curl_is_off_t_option(_curl_opt)) \
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| 49 | if(!_curl_is_off_t(value)) \
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| 50 | _curl_easy_setopt_err_curl_off_t(); \
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| 51 | if(_curl_is_string_option(_curl_opt)) \
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| 52 | if(!_curl_is_string(value)) \
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| 53 | _curl_easy_setopt_err_string(); \
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| 54 | if(_curl_is_write_cb_option(_curl_opt)) \
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| 55 | if(!_curl_is_write_cb(value)) \
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| 56 | _curl_easy_setopt_err_write_callback(); \
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| 57 | if((_curl_opt) == CURLOPT_READFUNCTION) \
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| 58 | if(!_curl_is_read_cb(value)) \
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| 59 | _curl_easy_setopt_err_read_cb(); \
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| 60 | if((_curl_opt) == CURLOPT_IOCTLFUNCTION) \
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| 61 | if(!_curl_is_ioctl_cb(value)) \
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| 62 | _curl_easy_setopt_err_ioctl_cb(); \
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| 63 | if((_curl_opt) == CURLOPT_SOCKOPTFUNCTION) \
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| 64 | if(!_curl_is_sockopt_cb(value)) \
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| 65 | _curl_easy_setopt_err_sockopt_cb(); \
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| 66 | if((_curl_opt) == CURLOPT_OPENSOCKETFUNCTION) \
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| 67 | if(!_curl_is_opensocket_cb(value)) \
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| 68 | _curl_easy_setopt_err_opensocket_cb(); \
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| 69 | if((_curl_opt) == CURLOPT_PROGRESSFUNCTION) \
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| 70 | if(!_curl_is_progress_cb(value)) \
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| 71 | _curl_easy_setopt_err_progress_cb(); \
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| 72 | if((_curl_opt) == CURLOPT_DEBUGFUNCTION) \
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| 73 | if(!_curl_is_debug_cb(value)) \
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| 74 | _curl_easy_setopt_err_debug_cb(); \
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| 75 | if((_curl_opt) == CURLOPT_SSL_CTX_FUNCTION) \
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| 76 | if(!_curl_is_ssl_ctx_cb(value)) \
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| 77 | _curl_easy_setopt_err_ssl_ctx_cb(); \
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| 78 | if(_curl_is_conv_cb_option(_curl_opt)) \
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| 79 | if(!_curl_is_conv_cb(value)) \
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| 80 | _curl_easy_setopt_err_conv_cb(); \
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| 81 | if((_curl_opt) == CURLOPT_SEEKFUNCTION) \
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| 82 | if(!_curl_is_seek_cb(value)) \
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| 83 | _curl_easy_setopt_err_seek_cb(); \
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| 84 | if(_curl_is_cb_data_option(_curl_opt)) \
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| 85 | if(!_curl_is_cb_data(value)) \
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| 86 | _curl_easy_setopt_err_cb_data(); \
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| 87 | if((_curl_opt) == CURLOPT_ERRORBUFFER) \
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| 88 | if(!_curl_is_error_buffer(value)) \
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| 89 | _curl_easy_setopt_err_error_buffer(); \
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| 90 | if((_curl_opt) == CURLOPT_STDERR) \
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| 91 | if(!_curl_is_FILE(value)) \
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| 92 | _curl_easy_setopt_err_FILE(); \
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| 93 | if(_curl_is_postfields_option(_curl_opt)) \
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| 94 | if(!_curl_is_postfields(value)) \
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| 95 | _curl_easy_setopt_err_postfields(); \
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| 96 | if((_curl_opt) == CURLOPT_HTTPPOST) \
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| 97 | if(!_curl_is_arr((value), struct curl_httppost)) \
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| 98 | _curl_easy_setopt_err_curl_httpost(); \
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| 99 | if((_curl_opt) == CURLOPT_MIMEPOST) \
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| 100 | if(!_curl_is_ptr((value), curl_mime)) \
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| 101 | _curl_easy_setopt_err_curl_mimepost(); \
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| 102 | if(_curl_is_slist_option(_curl_opt)) \
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| 103 | if(!_curl_is_arr((value), struct curl_slist)) \
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| 104 | _curl_easy_setopt_err_curl_slist(); \
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| 105 | if((_curl_opt) == CURLOPT_SHARE) \
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| 106 | if(!_curl_is_ptr((value), CURLSH)) \
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| 107 | _curl_easy_setopt_err_CURLSH(); \
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| 108 | } \
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| 109 | curl_easy_setopt(handle, _curl_opt, value); \
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| 110 | })
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| 111 |
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| 112 | /* wraps curl_easy_getinfo() with typechecking */
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| 113 | /* FIXME: don't allow const pointers */
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| 114 | #define curl_easy_getinfo(handle, info, arg) \
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| 115 | __extension__ ({ \
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| 116 | __typeof__(info) _curl_info = info; \
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| 117 | if(__builtin_constant_p(_curl_info)) { \
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| 118 | if(_curl_is_string_info(_curl_info)) \
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| 119 | if(!_curl_is_arr((arg), char *)) \
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| 120 | _curl_easy_getinfo_err_string(); \
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| 121 | if(_curl_is_long_info(_curl_info)) \
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| 122 | if(!_curl_is_arr((arg), long)) \
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| 123 | _curl_easy_getinfo_err_long(); \
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| 124 | if(_curl_is_double_info(_curl_info)) \
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| 125 | if(!_curl_is_arr((arg), double)) \
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| 126 | _curl_easy_getinfo_err_double(); \
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| 127 | if(_curl_is_slist_info(_curl_info)) \
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| 128 | if(!_curl_is_arr((arg), struct curl_slist *)) \
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| 129 | _curl_easy_getinfo_err_curl_slist(); \
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| 130 | if(_curl_is_tlssessioninfo_info(_curl_info)) \
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| 131 | if(!_curl_is_arr((arg), struct curl_tlssessioninfo *)) \
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| 132 | _curl_easy_getinfo_err_curl_tlssesssioninfo(); \
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| 133 | if(_curl_is_certinfo_info(_curl_info)) \
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| 134 | if(!_curl_is_arr((arg), struct curl_certinfo *)) \
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| 135 | _curl_easy_getinfo_err_curl_certinfo(); \
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| 136 | if(_curl_is_socket_info(_curl_info)) \
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| 137 | if(!_curl_is_arr((arg), curl_socket_t)) \
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| 138 | _curl_easy_getinfo_err_curl_socket(); \
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| 139 | if(_curl_is_off_t_info(_curl_info)) \
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| 140 | if(!_curl_is_arr((arg), curl_off_t)) \
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| 141 | _curl_easy_getinfo_err_curl_off_t(); \
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| 142 | } \
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| 143 | curl_easy_getinfo(handle, _curl_info, arg); \
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| 144 | })
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| 145 |
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| 146 | /* TODO: typechecking for curl_share_setopt() and curl_multi_setopt(),
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| 147 | * for now just make sure that the functions are called with three
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| 148 | * arguments
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| 149 | */
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| 150 | #define curl_share_setopt(share,opt,param) curl_share_setopt(share,opt,param)
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| 151 | #define curl_multi_setopt(handle,opt,param) curl_multi_setopt(handle,opt,param)
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| 152 |
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| 153 |
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| 154 | /* the actual warnings, triggered by calling the _curl_easy_setopt_err*
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| 155 | * functions */
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| 156 |
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| 157 | /* To define a new warning, use _CURL_WARNING(identifier, "message") */
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| 158 | #define _CURL_WARNING(id, message) \
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| 159 | static void __attribute__((__warning__(message))) \
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| 160 | __attribute__((__unused__)) __attribute__((__noinline__)) \
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| 161 | id(void) { __asm__(""); }
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| 162 |
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| 163 | _CURL_WARNING(_curl_easy_setopt_err_long,
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| 164 | "curl_easy_setopt expects a long argument for this option")
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| 165 | _CURL_WARNING(_curl_easy_setopt_err_curl_off_t,
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| 166 | "curl_easy_setopt expects a curl_off_t argument for this option")
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| 167 | _CURL_WARNING(_curl_easy_setopt_err_string,
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| 168 | "curl_easy_setopt expects a "
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| 169 | "string ('char *' or char[]) argument for this option"
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| 170 | )
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| 171 | _CURL_WARNING(_curl_easy_setopt_err_write_callback,
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| 172 | "curl_easy_setopt expects a curl_write_callback argument for this option")
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| 173 | _CURL_WARNING(_curl_easy_setopt_err_read_cb,
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| 174 | "curl_easy_setopt expects a curl_read_callback argument for this option")
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| 175 | _CURL_WARNING(_curl_easy_setopt_err_ioctl_cb,
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| 176 | "curl_easy_setopt expects a curl_ioctl_callback argument for this option")
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| 177 | _CURL_WARNING(_curl_easy_setopt_err_sockopt_cb,
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| 178 | "curl_easy_setopt expects a curl_sockopt_callback argument for this option")
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| 179 | _CURL_WARNING(_curl_easy_setopt_err_opensocket_cb,
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| 180 | "curl_easy_setopt expects a "
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| 181 | "curl_opensocket_callback argument for this option"
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| 182 | )
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| 183 | _CURL_WARNING(_curl_easy_setopt_err_progress_cb,
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| 184 | "curl_easy_setopt expects a curl_progress_callback argument for this option")
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| 185 | _CURL_WARNING(_curl_easy_setopt_err_debug_cb,
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| 186 | "curl_easy_setopt expects a curl_debug_callback argument for this option")
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| 187 | _CURL_WARNING(_curl_easy_setopt_err_ssl_ctx_cb,
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| 188 | "curl_easy_setopt expects a curl_ssl_ctx_callback argument for this option")
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| 189 | _CURL_WARNING(_curl_easy_setopt_err_conv_cb,
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| 190 | "curl_easy_setopt expects a curl_conv_callback argument for this option")
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| 191 | _CURL_WARNING(_curl_easy_setopt_err_seek_cb,
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| 192 | "curl_easy_setopt expects a curl_seek_callback argument for this option")
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| 193 | _CURL_WARNING(_curl_easy_setopt_err_cb_data,
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| 194 | "curl_easy_setopt expects a "
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| 195 | "private data pointer as argument for this option")
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| 196 | _CURL_WARNING(_curl_easy_setopt_err_error_buffer,
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| 197 | "curl_easy_setopt expects a "
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| 198 | "char buffer of CURL_ERROR_SIZE as argument for this option")
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| 199 | _CURL_WARNING(_curl_easy_setopt_err_FILE,
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| 200 | "curl_easy_setopt expects a 'FILE *' argument for this option")
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| 201 | _CURL_WARNING(_curl_easy_setopt_err_postfields,
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| 202 | "curl_easy_setopt expects a 'void *' or 'char *' argument for this option")
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| 203 | _CURL_WARNING(_curl_easy_setopt_err_curl_httpost,
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| 204 | "curl_easy_setopt expects a 'struct curl_httppost *' "
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| 205 | "argument for this option")
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| 206 | _CURL_WARNING(_curl_easy_setopt_err_curl_mimepost,
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| 207 | "curl_easy_setopt expects a 'curl_mime *' "
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| 208 | "argument for this option")
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| 209 | _CURL_WARNING(_curl_easy_setopt_err_curl_slist,
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| 210 | "curl_easy_setopt expects a 'struct curl_slist *' argument for this option")
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| 211 | _CURL_WARNING(_curl_easy_setopt_err_CURLSH,
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| 212 | "curl_easy_setopt expects a CURLSH* argument for this option")
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| 213 |
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| 214 | _CURL_WARNING(_curl_easy_getinfo_err_string,
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| 215 | "curl_easy_getinfo expects a pointer to 'char *' for this info")
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| 216 | _CURL_WARNING(_curl_easy_getinfo_err_long,
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| 217 | "curl_easy_getinfo expects a pointer to long for this info")
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| 218 | _CURL_WARNING(_curl_easy_getinfo_err_double,
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| 219 | "curl_easy_getinfo expects a pointer to double for this info")
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| 220 | _CURL_WARNING(_curl_easy_getinfo_err_curl_slist,
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| 221 | "curl_easy_getinfo expects a pointer to 'struct curl_slist *' for this info")
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| 222 | _CURL_WARNING(_curl_easy_getinfo_err_curl_tlssesssioninfo,
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| 223 | "curl_easy_getinfo expects a pointer to "
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| 224 | "'struct curl_tlssessioninfo *' for this info")
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| 225 | _CURL_WARNING(_curl_easy_getinfo_err_curl_certinfo,
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| 226 | "curl_easy_getinfo expects a pointer to "
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| 227 | "'struct curl_certinfo *' for this info")
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| 228 | _CURL_WARNING(_curl_easy_getinfo_err_curl_socket,
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| 229 | "curl_easy_getinfo expects a pointer to curl_socket_t for this info")
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| 230 | _CURL_WARNING(_curl_easy_getinfo_err_curl_off_t,
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| 231 | "curl_easy_getinfo expects a pointer to curl_off_t for this info")
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| 232 |
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| 233 | /* groups of curl_easy_setops options that take the same type of argument */
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| 234 |
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| 235 | /* To add a new option to one of the groups, just add
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| 236 | * (option) == CURLOPT_SOMETHING
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| 237 | * to the or-expression. If the option takes a long or curl_off_t, you don't
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| 238 | * have to do anything
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| 239 | */
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| 240 |
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| 241 | /* evaluates to true if option takes a long argument */
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| 242 | #define _curl_is_long_option(option) \
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| 243 | (0 < (option) && (option) < CURLOPTTYPE_OBJECTPOINT)
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| 244 |
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| 245 | #define _curl_is_off_t_option(option) \
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| 246 | ((option) > CURLOPTTYPE_OFF_T)
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| 247 |
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| 248 | /* evaluates to true if option takes a char* argument */
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| 249 | #define _curl_is_string_option(option) \
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| 250 | ((option) == CURLOPT_ABSTRACT_UNIX_SOCKET || \
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| 251 | (option) == CURLOPT_ACCEPT_ENCODING || \
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| 252 | (option) == CURLOPT_CAINFO || \
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| 253 | (option) == CURLOPT_CAPATH || \
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| 254 | (option) == CURLOPT_COOKIE || \
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| 255 | (option) == CURLOPT_COOKIEFILE || \
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| 256 | (option) == CURLOPT_COOKIEJAR || \
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| 257 | (option) == CURLOPT_COOKIELIST || \
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| 258 | (option) == CURLOPT_CRLFILE || \
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| 259 | (option) == CURLOPT_CUSTOMREQUEST || \
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| 260 | (option) == CURLOPT_DEFAULT_PROTOCOL || \
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| 261 | (option) == CURLOPT_DNS_INTERFACE || \
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| 262 | (option) == CURLOPT_DNS_LOCAL_IP4 || \
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| 263 | (option) == CURLOPT_DNS_LOCAL_IP6 || \
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| 264 | (option) == CURLOPT_DNS_SERVERS || \
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| 265 | (option) == CURLOPT_EGDSOCKET || \
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| 266 | (option) == CURLOPT_FTPPORT || \
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| 267 | (option) == CURLOPT_FTP_ACCOUNT || \
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| 268 | (option) == CURLOPT_FTP_ALTERNATIVE_TO_USER || \
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| 269 | (option) == CURLOPT_INTERFACE || \
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| 270 | (option) == CURLOPT_ISSUERCERT || \
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| 271 | (option) == CURLOPT_KEYPASSWD || \
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| 272 | (option) == CURLOPT_KRBLEVEL || \
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| 273 | (option) == CURLOPT_LOGIN_OPTIONS || \
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| 274 | (option) == CURLOPT_MAIL_AUTH || \
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| 275 | (option) == CURLOPT_MAIL_FROM || \
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| 276 | (option) == CURLOPT_NETRC_FILE || \
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| 277 | (option) == CURLOPT_NOPROXY || \
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| 278 | (option) == CURLOPT_PASSWORD || \
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| 279 | (option) == CURLOPT_PINNEDPUBLICKEY || \
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| 280 | (option) == CURLOPT_PRE_PROXY || \
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| 281 | (option) == CURLOPT_PROXY || \
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| 282 | (option) == CURLOPT_PROXYPASSWORD || \
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| 283 | (option) == CURLOPT_PROXYUSERNAME || \
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| 284 | (option) == CURLOPT_PROXYUSERPWD || \
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| 285 | (option) == CURLOPT_PROXY_CAINFO || \
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| 286 | (option) == CURLOPT_PROXY_CAPATH || \
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| 287 | (option) == CURLOPT_PROXY_CRLFILE || \
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| 288 | (option) == CURLOPT_PROXY_KEYPASSWD || \
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| 289 | (option) == CURLOPT_PROXY_PINNEDPUBLICKEY || \
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| 290 | (option) == CURLOPT_PROXY_SERVICE_NAME || \
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| 291 | (option) == CURLOPT_PROXY_SSLCERT || \
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| 292 | (option) == CURLOPT_PROXY_SSLCERTTYPE || \
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| 293 | (option) == CURLOPT_PROXY_SSLKEY || \
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| 294 | (option) == CURLOPT_PROXY_SSLKEYTYPE || \
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| 295 | (option) == CURLOPT_PROXY_SSL_CIPHER_LIST || \
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| 296 | (option) == CURLOPT_PROXY_TLSAUTH_PASSWORD || \
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| 297 | (option) == CURLOPT_PROXY_TLSAUTH_USERNAME || \
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| 298 | (option) == CURLOPT_PROXY_TLSAUTH_TYPE || \
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| 299 | (option) == CURLOPT_RANDOM_FILE || \
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| 300 | (option) == CURLOPT_RANGE || \
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| 301 | (option) == CURLOPT_REFERER || \
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| 302 | (option) == CURLOPT_RTSP_SESSION_ID || \
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| 303 | (option) == CURLOPT_RTSP_STREAM_URI || \
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| 304 | (option) == CURLOPT_RTSP_TRANSPORT || \
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| 305 | (option) == CURLOPT_SERVICE_NAME || \
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| 306 | (option) == CURLOPT_SOCKS5_GSSAPI_SERVICE || \
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| 307 | (option) == CURLOPT_SSH_HOST_PUBLIC_KEY_MD5 || \
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| 308 | (option) == CURLOPT_SSH_KNOWNHOSTS || \
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| 309 | (option) == CURLOPT_SSH_PRIVATE_KEYFILE || \
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| 310 | (option) == CURLOPT_SSH_PUBLIC_KEYFILE || \
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| 311 | (option) == CURLOPT_SSLCERT || \
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| 312 | (option) == CURLOPT_SSLCERTTYPE || \
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| 313 | (option) == CURLOPT_SSLENGINE || \
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| 314 | (option) == CURLOPT_SSLKEY || \
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| 315 | (option) == CURLOPT_SSLKEYTYPE || \
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| 316 | (option) == CURLOPT_SSL_CIPHER_LIST || \
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| 317 | (option) == CURLOPT_TLSAUTH_PASSWORD || \
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| 318 | (option) == CURLOPT_TLSAUTH_TYPE || \
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| 319 | (option) == CURLOPT_TLSAUTH_USERNAME || \
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| 320 | (option) == CURLOPT_UNIX_SOCKET_PATH || \
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| 321 | (option) == CURLOPT_URL || \
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| 322 | (option) == CURLOPT_USERAGENT || \
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| 323 | (option) == CURLOPT_USERNAME || \
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| 324 | (option) == CURLOPT_USERPWD || \
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| 325 | (option) == CURLOPT_XOAUTH2_BEARER || \
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| 326 | 0)
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| 327 |
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| 328 | /* evaluates to true if option takes a curl_write_callback argument */
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| 329 | #define _curl_is_write_cb_option(option) \
|
---|
| 330 | ((option) == CURLOPT_HEADERFUNCTION || \
|
---|
| 331 | (option) == CURLOPT_WRITEFUNCTION)
|
---|
| 332 |
|
---|
| 333 | /* evaluates to true if option takes a curl_conv_callback argument */
|
---|
| 334 | #define _curl_is_conv_cb_option(option) \
|
---|
| 335 | ((option) == CURLOPT_CONV_TO_NETWORK_FUNCTION || \
|
---|
| 336 | (option) == CURLOPT_CONV_FROM_NETWORK_FUNCTION || \
|
---|
| 337 | (option) == CURLOPT_CONV_FROM_UTF8_FUNCTION)
|
---|
| 338 |
|
---|
| 339 | /* evaluates to true if option takes a data argument to pass to a callback */
|
---|
| 340 | #define _curl_is_cb_data_option(option) \
|
---|
| 341 | ((option) == CURLOPT_CHUNK_DATA || \
|
---|
| 342 | (option) == CURLOPT_CLOSESOCKETDATA || \
|
---|
| 343 | (option) == CURLOPT_DEBUGDATA || \
|
---|
| 344 | (option) == CURLOPT_FNMATCH_DATA || \
|
---|
| 345 | (option) == CURLOPT_HEADERDATA || \
|
---|
| 346 | (option) == CURLOPT_INTERLEAVEDATA || \
|
---|
| 347 | (option) == CURLOPT_IOCTLDATA || \
|
---|
| 348 | (option) == CURLOPT_OPENSOCKETDATA || \
|
---|
| 349 | (option) == CURLOPT_PRIVATE || \
|
---|
| 350 | (option) == CURLOPT_PROGRESSDATA || \
|
---|
| 351 | (option) == CURLOPT_READDATA || \
|
---|
| 352 | (option) == CURLOPT_SEEKDATA || \
|
---|
| 353 | (option) == CURLOPT_SOCKOPTDATA || \
|
---|
| 354 | (option) == CURLOPT_SSH_KEYDATA || \
|
---|
| 355 | (option) == CURLOPT_SSL_CTX_DATA || \
|
---|
| 356 | (option) == CURLOPT_WRITEDATA || \
|
---|
| 357 | 0)
|
---|
| 358 |
|
---|
| 359 | /* evaluates to true if option takes a POST data argument (void* or char*) */
|
---|
| 360 | #define _curl_is_postfields_option(option) \
|
---|
| 361 | ((option) == CURLOPT_POSTFIELDS || \
|
---|
| 362 | (option) == CURLOPT_COPYPOSTFIELDS || \
|
---|
| 363 | 0)
|
---|
| 364 |
|
---|
| 365 | /* evaluates to true if option takes a struct curl_slist * argument */
|
---|
| 366 | #define _curl_is_slist_option(option) \
|
---|
| 367 | ((option) == CURLOPT_HTTP200ALIASES || \
|
---|
| 368 | (option) == CURLOPT_HTTPHEADER || \
|
---|
| 369 | (option) == CURLOPT_MAIL_RCPT || \
|
---|
| 370 | (option) == CURLOPT_POSTQUOTE || \
|
---|
| 371 | (option) == CURLOPT_PREQUOTE || \
|
---|
| 372 | (option) == CURLOPT_PROXYHEADER || \
|
---|
| 373 | (option) == CURLOPT_QUOTE || \
|
---|
| 374 | (option) == CURLOPT_RESOLVE || \
|
---|
| 375 | (option) == CURLOPT_TELNETOPTIONS || \
|
---|
| 376 | 0)
|
---|
| 377 |
|
---|
| 378 | /* groups of curl_easy_getinfo infos that take the same type of argument */
|
---|
| 379 |
|
---|
| 380 | /* evaluates to true if info expects a pointer to char * argument */
|
---|
| 381 | #define _curl_is_string_info(info) \
|
---|
| 382 | (CURLINFO_STRING < (info) && (info) < CURLINFO_LONG)
|
---|
| 383 |
|
---|
| 384 | /* evaluates to true if info expects a pointer to long argument */
|
---|
| 385 | #define _curl_is_long_info(info) \
|
---|
| 386 | (CURLINFO_LONG < (info) && (info) < CURLINFO_DOUBLE)
|
---|
| 387 |
|
---|
| 388 | /* evaluates to true if info expects a pointer to double argument */
|
---|
| 389 | #define _curl_is_double_info(info) \
|
---|
| 390 | (CURLINFO_DOUBLE < (info) && (info) < CURLINFO_SLIST)
|
---|
| 391 |
|
---|
| 392 | /* true if info expects a pointer to struct curl_slist * argument */
|
---|
| 393 | #define _curl_is_slist_info(info) \
|
---|
| 394 | (((info) == CURLINFO_SSL_ENGINES) || ((info) == CURLINFO_COOKIELIST))
|
---|
| 395 |
|
---|
| 396 | /* true if info expects a pointer to struct curl_tlssessioninfo * argument */
|
---|
| 397 | #define _curl_is_tlssessioninfo_info(info) \
|
---|
| 398 | (((info) == CURLINFO_TLS_SSL_PTR) || ((info) == CURLINFO_TLS_SESSION))
|
---|
| 399 |
|
---|
| 400 | /* true if info expects a pointer to struct curl_certinfo * argument */
|
---|
| 401 | #define _curl_is_certinfo_info(info) ((info) == CURLINFO_CERTINFO)
|
---|
| 402 |
|
---|
| 403 | /* true if info expects a pointer to struct curl_socket_t argument */
|
---|
| 404 | #define _curl_is_socket_info(info) \
|
---|
| 405 | (CURLINFO_SOCKET < (info) && (info) < CURLINFO_OFF_T)
|
---|
| 406 |
|
---|
| 407 | /* true if info expects a pointer to curl_off_t argument */
|
---|
| 408 | #define _curl_is_off_t_info(info) \
|
---|
| 409 | (CURLINFO_OFF_T < (info))
|
---|
| 410 |
|
---|
| 411 |
|
---|
| 412 | /* typecheck helpers -- check whether given expression has requested type*/
|
---|
| 413 |
|
---|
| 414 | /* For pointers, you can use the _curl_is_ptr/_curl_is_arr macros,
|
---|
| 415 | * otherwise define a new macro. Search for __builtin_types_compatible_p
|
---|
| 416 | * in the GCC manual.
|
---|
| 417 | * NOTE: these macros MUST NOT EVALUATE their arguments! The argument is
|
---|
| 418 | * the actual expression passed to the curl_easy_setopt macro. This
|
---|
| 419 | * means that you can only apply the sizeof and __typeof__ operators, no
|
---|
| 420 | * == or whatsoever.
|
---|
| 421 | */
|
---|
| 422 |
|
---|
| 423 | /* XXX: should evaluate to true iff expr is a pointer */
|
---|
| 424 | #define _curl_is_any_ptr(expr) \
|
---|
| 425 | (sizeof(expr) == sizeof(void *))
|
---|
| 426 |
|
---|
| 427 | /* evaluates to true if expr is NULL */
|
---|
| 428 | /* XXX: must not evaluate expr, so this check is not accurate */
|
---|
| 429 | #define _curl_is_NULL(expr) \
|
---|
| 430 | (__builtin_types_compatible_p(__typeof__(expr), __typeof__(NULL)))
|
---|
| 431 |
|
---|
| 432 | /* evaluates to true if expr is type*, const type* or NULL */
|
---|
| 433 | #define _curl_is_ptr(expr, type) \
|
---|
| 434 | (_curl_is_NULL(expr) || \
|
---|
| 435 | __builtin_types_compatible_p(__typeof__(expr), type *) || \
|
---|
| 436 | __builtin_types_compatible_p(__typeof__(expr), const type *))
|
---|
| 437 |
|
---|
| 438 | /* evaluates to true if expr is one of type[], type*, NULL or const type* */
|
---|
| 439 | #define _curl_is_arr(expr, type) \
|
---|
| 440 | (_curl_is_ptr((expr), type) || \
|
---|
| 441 | __builtin_types_compatible_p(__typeof__(expr), type []))
|
---|
| 442 |
|
---|
| 443 | /* evaluates to true if expr is a string */
|
---|
| 444 | #define _curl_is_string(expr) \
|
---|
| 445 | (_curl_is_arr((expr), char) || \
|
---|
| 446 | _curl_is_arr((expr), signed char) || \
|
---|
| 447 | _curl_is_arr((expr), unsigned char))
|
---|
| 448 |
|
---|
| 449 | /* evaluates to true if expr is a long (no matter the signedness)
|
---|
| 450 | * XXX: for now, int is also accepted (and therefore short and char, which
|
---|
| 451 | * are promoted to int when passed to a variadic function) */
|
---|
| 452 | #define _curl_is_long(expr) \
|
---|
| 453 | (__builtin_types_compatible_p(__typeof__(expr), long) || \
|
---|
| 454 | __builtin_types_compatible_p(__typeof__(expr), signed long) || \
|
---|
| 455 | __builtin_types_compatible_p(__typeof__(expr), unsigned long) || \
|
---|
| 456 | __builtin_types_compatible_p(__typeof__(expr), int) || \
|
---|
| 457 | __builtin_types_compatible_p(__typeof__(expr), signed int) || \
|
---|
| 458 | __builtin_types_compatible_p(__typeof__(expr), unsigned int) || \
|
---|
| 459 | __builtin_types_compatible_p(__typeof__(expr), short) || \
|
---|
| 460 | __builtin_types_compatible_p(__typeof__(expr), signed short) || \
|
---|
| 461 | __builtin_types_compatible_p(__typeof__(expr), unsigned short) || \
|
---|
| 462 | __builtin_types_compatible_p(__typeof__(expr), char) || \
|
---|
| 463 | __builtin_types_compatible_p(__typeof__(expr), signed char) || \
|
---|
| 464 | __builtin_types_compatible_p(__typeof__(expr), unsigned char))
|
---|
| 465 |
|
---|
| 466 | /* evaluates to true if expr is of type curl_off_t */
|
---|
| 467 | #define _curl_is_off_t(expr) \
|
---|
| 468 | (__builtin_types_compatible_p(__typeof__(expr), curl_off_t))
|
---|
| 469 |
|
---|
| 470 | /* evaluates to true if expr is abuffer suitable for CURLOPT_ERRORBUFFER */
|
---|
| 471 | /* XXX: also check size of an char[] array? */
|
---|
| 472 | #define _curl_is_error_buffer(expr) \
|
---|
| 473 | (_curl_is_NULL(expr) || \
|
---|
| 474 | __builtin_types_compatible_p(__typeof__(expr), char *) || \
|
---|
| 475 | __builtin_types_compatible_p(__typeof__(expr), char[]))
|
---|
| 476 |
|
---|
| 477 | /* evaluates to true if expr is of type (const) void* or (const) FILE* */
|
---|
| 478 | #if 0
|
---|
| 479 | #define _curl_is_cb_data(expr) \
|
---|
| 480 | (_curl_is_ptr((expr), void) || \
|
---|
| 481 | _curl_is_ptr((expr), FILE))
|
---|
| 482 | #else /* be less strict */
|
---|
| 483 | #define _curl_is_cb_data(expr) \
|
---|
| 484 | _curl_is_any_ptr(expr)
|
---|
| 485 | #endif
|
---|
| 486 |
|
---|
| 487 | /* evaluates to true if expr is of type FILE* */
|
---|
| 488 | #define _curl_is_FILE(expr) \
|
---|
| 489 | (_curl_is_NULL(expr) || \
|
---|
| 490 | (__builtin_types_compatible_p(__typeof__(expr), FILE *)))
|
---|
| 491 |
|
---|
| 492 | /* evaluates to true if expr can be passed as POST data (void* or char*) */
|
---|
| 493 | #define _curl_is_postfields(expr) \
|
---|
| 494 | (_curl_is_ptr((expr), void) || \
|
---|
| 495 | _curl_is_arr((expr), char))
|
---|
| 496 |
|
---|
| 497 | /* FIXME: the whole callback checking is messy...
|
---|
| 498 | * The idea is to tolerate char vs. void and const vs. not const
|
---|
| 499 | * pointers in arguments at least
|
---|
| 500 | */
|
---|
| 501 | /* helper: __builtin_types_compatible_p distinguishes between functions and
|
---|
| 502 | * function pointers, hide it */
|
---|
| 503 | #define _curl_callback_compatible(func, type) \
|
---|
| 504 | (__builtin_types_compatible_p(__typeof__(func), type) || \
|
---|
| 505 | __builtin_types_compatible_p(__typeof__(func) *, type))
|
---|
| 506 |
|
---|
| 507 | /* evaluates to true if expr is of type curl_read_callback or "similar" */
|
---|
| 508 | #define _curl_is_read_cb(expr) \
|
---|
| 509 | (_curl_is_NULL(expr) || \
|
---|
| 510 | _curl_callback_compatible((expr), __typeof__(fread) *) || \
|
---|
| 511 | _curl_callback_compatible((expr), curl_read_callback) || \
|
---|
| 512 | _curl_callback_compatible((expr), _curl_read_callback1) || \
|
---|
| 513 | _curl_callback_compatible((expr), _curl_read_callback2) || \
|
---|
| 514 | _curl_callback_compatible((expr), _curl_read_callback3) || \
|
---|
| 515 | _curl_callback_compatible((expr), _curl_read_callback4) || \
|
---|
| 516 | _curl_callback_compatible((expr), _curl_read_callback5) || \
|
---|
| 517 | _curl_callback_compatible((expr), _curl_read_callback6))
|
---|
| 518 | typedef size_t (*_curl_read_callback1)(char *, size_t, size_t, void *);
|
---|
| 519 | typedef size_t (*_curl_read_callback2)(char *, size_t, size_t, const void *);
|
---|
| 520 | typedef size_t (*_curl_read_callback3)(char *, size_t, size_t, FILE *);
|
---|
| 521 | typedef size_t (*_curl_read_callback4)(void *, size_t, size_t, void *);
|
---|
| 522 | typedef size_t (*_curl_read_callback5)(void *, size_t, size_t, const void *);
|
---|
| 523 | typedef size_t (*_curl_read_callback6)(void *, size_t, size_t, FILE *);
|
---|
| 524 |
|
---|
| 525 | /* evaluates to true if expr is of type curl_write_callback or "similar" */
|
---|
| 526 | #define _curl_is_write_cb(expr) \
|
---|
| 527 | (_curl_is_read_cb(expr) || \
|
---|
| 528 | _curl_callback_compatible((expr), __typeof__(fwrite) *) || \
|
---|
| 529 | _curl_callback_compatible((expr), curl_write_callback) || \
|
---|
| 530 | _curl_callback_compatible((expr), _curl_write_callback1) || \
|
---|
| 531 | _curl_callback_compatible((expr), _curl_write_callback2) || \
|
---|
| 532 | _curl_callback_compatible((expr), _curl_write_callback3) || \
|
---|
| 533 | _curl_callback_compatible((expr), _curl_write_callback4) || \
|
---|
| 534 | _curl_callback_compatible((expr), _curl_write_callback5) || \
|
---|
| 535 | _curl_callback_compatible((expr), _curl_write_callback6))
|
---|
| 536 | typedef size_t (*_curl_write_callback1)(const char *, size_t, size_t, void *);
|
---|
| 537 | typedef size_t (*_curl_write_callback2)(const char *, size_t, size_t,
|
---|
| 538 | const void *);
|
---|
| 539 | typedef size_t (*_curl_write_callback3)(const char *, size_t, size_t, FILE *);
|
---|
| 540 | typedef size_t (*_curl_write_callback4)(const void *, size_t, size_t, void *);
|
---|
| 541 | typedef size_t (*_curl_write_callback5)(const void *, size_t, size_t,
|
---|
| 542 | const void *);
|
---|
| 543 | typedef size_t (*_curl_write_callback6)(const void *, size_t, size_t, FILE *);
|
---|
| 544 |
|
---|
| 545 | /* evaluates to true if expr is of type curl_ioctl_callback or "similar" */
|
---|
| 546 | #define _curl_is_ioctl_cb(expr) \
|
---|
| 547 | (_curl_is_NULL(expr) || \
|
---|
| 548 | _curl_callback_compatible((expr), curl_ioctl_callback) || \
|
---|
| 549 | _curl_callback_compatible((expr), _curl_ioctl_callback1) || \
|
---|
| 550 | _curl_callback_compatible((expr), _curl_ioctl_callback2) || \
|
---|
| 551 | _curl_callback_compatible((expr), _curl_ioctl_callback3) || \
|
---|
| 552 | _curl_callback_compatible((expr), _curl_ioctl_callback4))
|
---|
| 553 | typedef curlioerr (*_curl_ioctl_callback1)(CURL *, int, void *);
|
---|
| 554 | typedef curlioerr (*_curl_ioctl_callback2)(CURL *, int, const void *);
|
---|
| 555 | typedef curlioerr (*_curl_ioctl_callback3)(CURL *, curliocmd, void *);
|
---|
| 556 | typedef curlioerr (*_curl_ioctl_callback4)(CURL *, curliocmd, const void *);
|
---|
| 557 |
|
---|
| 558 | /* evaluates to true if expr is of type curl_sockopt_callback or "similar" */
|
---|
| 559 | #define _curl_is_sockopt_cb(expr) \
|
---|
| 560 | (_curl_is_NULL(expr) || \
|
---|
| 561 | _curl_callback_compatible((expr), curl_sockopt_callback) || \
|
---|
| 562 | _curl_callback_compatible((expr), _curl_sockopt_callback1) || \
|
---|
| 563 | _curl_callback_compatible((expr), _curl_sockopt_callback2))
|
---|
| 564 | typedef int (*_curl_sockopt_callback1)(void *, curl_socket_t, curlsocktype);
|
---|
| 565 | typedef int (*_curl_sockopt_callback2)(const void *, curl_socket_t,
|
---|
| 566 | curlsocktype);
|
---|
| 567 |
|
---|
| 568 | /* evaluates to true if expr is of type curl_opensocket_callback or
|
---|
| 569 | "similar" */
|
---|
| 570 | #define _curl_is_opensocket_cb(expr) \
|
---|
| 571 | (_curl_is_NULL(expr) || \
|
---|
| 572 | _curl_callback_compatible((expr), curl_opensocket_callback) || \
|
---|
| 573 | _curl_callback_compatible((expr), _curl_opensocket_callback1) || \
|
---|
| 574 | _curl_callback_compatible((expr), _curl_opensocket_callback2) || \
|
---|
| 575 | _curl_callback_compatible((expr), _curl_opensocket_callback3) || \
|
---|
| 576 | _curl_callback_compatible((expr), _curl_opensocket_callback4))
|
---|
| 577 | typedef curl_socket_t (*_curl_opensocket_callback1)
|
---|
| 578 | (void *, curlsocktype, struct curl_sockaddr *);
|
---|
| 579 | typedef curl_socket_t (*_curl_opensocket_callback2)
|
---|
| 580 | (void *, curlsocktype, const struct curl_sockaddr *);
|
---|
| 581 | typedef curl_socket_t (*_curl_opensocket_callback3)
|
---|
| 582 | (const void *, curlsocktype, struct curl_sockaddr *);
|
---|
| 583 | typedef curl_socket_t (*_curl_opensocket_callback4)
|
---|
| 584 | (const void *, curlsocktype, const struct curl_sockaddr *);
|
---|
| 585 |
|
---|
| 586 | /* evaluates to true if expr is of type curl_progress_callback or "similar" */
|
---|
| 587 | #define _curl_is_progress_cb(expr) \
|
---|
| 588 | (_curl_is_NULL(expr) || \
|
---|
| 589 | _curl_callback_compatible((expr), curl_progress_callback) || \
|
---|
| 590 | _curl_callback_compatible((expr), _curl_progress_callback1) || \
|
---|
| 591 | _curl_callback_compatible((expr), _curl_progress_callback2))
|
---|
| 592 | typedef int (*_curl_progress_callback1)(void *,
|
---|
| 593 | double, double, double, double);
|
---|
| 594 | typedef int (*_curl_progress_callback2)(const void *,
|
---|
| 595 | double, double, double, double);
|
---|
| 596 |
|
---|
| 597 | /* evaluates to true if expr is of type curl_debug_callback or "similar" */
|
---|
| 598 | #define _curl_is_debug_cb(expr) \
|
---|
| 599 | (_curl_is_NULL(expr) || \
|
---|
| 600 | _curl_callback_compatible((expr), curl_debug_callback) || \
|
---|
| 601 | _curl_callback_compatible((expr), _curl_debug_callback1) || \
|
---|
| 602 | _curl_callback_compatible((expr), _curl_debug_callback2) || \
|
---|
| 603 | _curl_callback_compatible((expr), _curl_debug_callback3) || \
|
---|
| 604 | _curl_callback_compatible((expr), _curl_debug_callback4) || \
|
---|
| 605 | _curl_callback_compatible((expr), _curl_debug_callback5) || \
|
---|
| 606 | _curl_callback_compatible((expr), _curl_debug_callback6) || \
|
---|
| 607 | _curl_callback_compatible((expr), _curl_debug_callback7) || \
|
---|
| 608 | _curl_callback_compatible((expr), _curl_debug_callback8))
|
---|
| 609 | typedef int (*_curl_debug_callback1) (CURL *,
|
---|
| 610 | curl_infotype, char *, size_t, void *);
|
---|
| 611 | typedef int (*_curl_debug_callback2) (CURL *,
|
---|
| 612 | curl_infotype, char *, size_t, const void *);
|
---|
| 613 | typedef int (*_curl_debug_callback3) (CURL *,
|
---|
| 614 | curl_infotype, const char *, size_t, void *);
|
---|
| 615 | typedef int (*_curl_debug_callback4) (CURL *,
|
---|
| 616 | curl_infotype, const char *, size_t, const void *);
|
---|
| 617 | typedef int (*_curl_debug_callback5) (CURL *,
|
---|
| 618 | curl_infotype, unsigned char *, size_t, void *);
|
---|
| 619 | typedef int (*_curl_debug_callback6) (CURL *,
|
---|
| 620 | curl_infotype, unsigned char *, size_t, const void *);
|
---|
| 621 | typedef int (*_curl_debug_callback7) (CURL *,
|
---|
| 622 | curl_infotype, const unsigned char *, size_t, void *);
|
---|
| 623 | typedef int (*_curl_debug_callback8) (CURL *,
|
---|
| 624 | curl_infotype, const unsigned char *, size_t, const void *);
|
---|
| 625 |
|
---|
| 626 | /* evaluates to true if expr is of type curl_ssl_ctx_callback or "similar" */
|
---|
| 627 | /* this is getting even messier... */
|
---|
| 628 | #define _curl_is_ssl_ctx_cb(expr) \
|
---|
| 629 | (_curl_is_NULL(expr) || \
|
---|
| 630 | _curl_callback_compatible((expr), curl_ssl_ctx_callback) || \
|
---|
| 631 | _curl_callback_compatible((expr), _curl_ssl_ctx_callback1) || \
|
---|
| 632 | _curl_callback_compatible((expr), _curl_ssl_ctx_callback2) || \
|
---|
| 633 | _curl_callback_compatible((expr), _curl_ssl_ctx_callback3) || \
|
---|
| 634 | _curl_callback_compatible((expr), _curl_ssl_ctx_callback4) || \
|
---|
| 635 | _curl_callback_compatible((expr), _curl_ssl_ctx_callback5) || \
|
---|
| 636 | _curl_callback_compatible((expr), _curl_ssl_ctx_callback6) || \
|
---|
| 637 | _curl_callback_compatible((expr), _curl_ssl_ctx_callback7) || \
|
---|
| 638 | _curl_callback_compatible((expr), _curl_ssl_ctx_callback8))
|
---|
| 639 | typedef CURLcode (*_curl_ssl_ctx_callback1)(CURL *, void *, void *);
|
---|
| 640 | typedef CURLcode (*_curl_ssl_ctx_callback2)(CURL *, void *, const void *);
|
---|
| 641 | typedef CURLcode (*_curl_ssl_ctx_callback3)(CURL *, const void *, void *);
|
---|
| 642 | typedef CURLcode (*_curl_ssl_ctx_callback4)(CURL *, const void *,
|
---|
| 643 | const void *);
|
---|
| 644 | #ifdef HEADER_SSL_H
|
---|
| 645 | /* hack: if we included OpenSSL's ssl.h, we know about SSL_CTX
|
---|
| 646 | * this will of course break if we're included before OpenSSL headers...
|
---|
| 647 | */
|
---|
| 648 | typedef CURLcode (*_curl_ssl_ctx_callback5)(CURL *, SSL_CTX, void *);
|
---|
| 649 | typedef CURLcode (*_curl_ssl_ctx_callback6)(CURL *, SSL_CTX, const void *);
|
---|
| 650 | typedef CURLcode (*_curl_ssl_ctx_callback7)(CURL *, const SSL_CTX, void *);
|
---|
| 651 | typedef CURLcode (*_curl_ssl_ctx_callback8)(CURL *, const SSL_CTX,
|
---|
| 652 | const void *);
|
---|
| 653 | #else
|
---|
| 654 | typedef _curl_ssl_ctx_callback1 _curl_ssl_ctx_callback5;
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| 655 | typedef _curl_ssl_ctx_callback1 _curl_ssl_ctx_callback6;
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| 656 | typedef _curl_ssl_ctx_callback1 _curl_ssl_ctx_callback7;
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| 657 | typedef _curl_ssl_ctx_callback1 _curl_ssl_ctx_callback8;
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| 658 | #endif
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| 659 |
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| 660 | /* evaluates to true if expr is of type curl_conv_callback or "similar" */
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| 661 | #define _curl_is_conv_cb(expr) \
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| 662 | (_curl_is_NULL(expr) || \
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| 663 | _curl_callback_compatible((expr), curl_conv_callback) || \
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| 664 | _curl_callback_compatible((expr), _curl_conv_callback1) || \
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| 665 | _curl_callback_compatible((expr), _curl_conv_callback2) || \
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| 666 | _curl_callback_compatible((expr), _curl_conv_callback3) || \
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| 667 | _curl_callback_compatible((expr), _curl_conv_callback4))
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| 668 | typedef CURLcode (*_curl_conv_callback1)(char *, size_t length);
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| 669 | typedef CURLcode (*_curl_conv_callback2)(const char *, size_t length);
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| 670 | typedef CURLcode (*_curl_conv_callback3)(void *, size_t length);
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| 671 | typedef CURLcode (*_curl_conv_callback4)(const void *, size_t length);
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| 672 |
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| 673 | /* evaluates to true if expr is of type curl_seek_callback or "similar" */
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| 674 | #define _curl_is_seek_cb(expr) \
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| 675 | (_curl_is_NULL(expr) || \
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| 676 | _curl_callback_compatible((expr), curl_seek_callback) || \
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| 677 | _curl_callback_compatible((expr), _curl_seek_callback1) || \
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| 678 | _curl_callback_compatible((expr), _curl_seek_callback2))
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| 679 | typedef CURLcode (*_curl_seek_callback1)(void *, curl_off_t, int);
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| 680 | typedef CURLcode (*_curl_seek_callback2)(const void *, curl_off_t, int);
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| 681 |
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| 682 |
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| 683 | #endif /* __CURL_TYPECHECK_GCC_H */
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