[164] | 1 | #ifndef __CURL_CURLRULES_H
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| 2 | #define __CURL_CURLRULES_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 - 2012, 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 | /* ================================================================ */
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| 26 | /* COMPILE TIME SANITY CHECKS */
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| 27 | /* ================================================================ */
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| 28 |
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| 29 | /*
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| 30 | * NOTE 1:
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| 31 | * -------
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| 32 | *
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| 33 | * All checks done in this file are intentionally placed in a public
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| 34 | * header file which is pulled by curl/curl.h when an application is
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| 35 | * being built using an already built libcurl library. Additionally
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| 36 | * this file is also included and used when building the library.
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| 37 | *
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| 38 | * If compilation fails on this file it is certainly sure that the
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| 39 | * problem is elsewhere. It could be a problem in the curlbuild.h
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| 40 | * header file, or simply that you are using different compilation
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| 41 | * settings than those used to build the library.
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| 42 | *
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| 43 | * Nothing in this file is intended to be modified or adjusted by the
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| 44 | * curl library user nor by the curl library builder.
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| 45 | *
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| 46 | * Do not deactivate any check, these are done to make sure that the
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| 47 | * library is properly built and used.
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| 48 | *
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| 49 | * You can find further help on the libcurl development mailing list:
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| 50 | * https://cool.haxx.se/mailman/listinfo/curl-library/
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| 51 | *
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| 52 | * NOTE 2
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| 53 | * ------
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| 54 | *
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| 55 | * Some of the following compile time checks are based on the fact
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| 56 | * that the dimension of a constant array can not be a negative one.
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| 57 | * In this way if the compile time verification fails, the compilation
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| 58 | * will fail issuing an error. The error description wording is compiler
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| 59 | * dependent but it will be quite similar to one of the following:
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| 60 | *
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| 61 | * "negative subscript or subscript is too large"
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| 62 | * "array must have at least one element"
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| 63 | * "-1 is an illegal array size"
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| 64 | * "size of array is negative"
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| 65 | *
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| 66 | * If you are building an application which tries to use an already
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| 67 | * built libcurl library and you are getting this kind of errors on
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| 68 | * this file, it is a clear indication that there is a mismatch between
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| 69 | * how the library was built and how you are trying to use it for your
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| 70 | * application. Your already compiled or binary library provider is the
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| 71 | * only one who can give you the details you need to properly use it.
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| 72 | */
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| 73 |
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| 74 | /*
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| 75 | * Verify that some macros are actually defined.
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| 76 | */
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| 77 |
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| 78 | #ifndef CURL_SIZEOF_LONG
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| 79 | # error "CURL_SIZEOF_LONG definition is missing!"
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| 80 | Error Compilation_aborted_CURL_SIZEOF_LONG_is_missing
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| 81 | #endif
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| 82 |
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| 83 | #ifndef CURL_TYPEOF_CURL_SOCKLEN_T
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| 84 | # error "CURL_TYPEOF_CURL_SOCKLEN_T definition is missing!"
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| 85 | Error Compilation_aborted_CURL_TYPEOF_CURL_SOCKLEN_T_is_missing
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| 86 | #endif
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| 87 |
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| 88 | #ifndef CURL_SIZEOF_CURL_SOCKLEN_T
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| 89 | # error "CURL_SIZEOF_CURL_SOCKLEN_T definition is missing!"
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| 90 | Error Compilation_aborted_CURL_SIZEOF_CURL_SOCKLEN_T_is_missing
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| 91 | #endif
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| 92 |
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| 93 | #ifndef CURL_TYPEOF_CURL_OFF_T
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| 94 | # error "CURL_TYPEOF_CURL_OFF_T definition is missing!"
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| 95 | Error Compilation_aborted_CURL_TYPEOF_CURL_OFF_T_is_missing
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| 96 | #endif
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| 97 |
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| 98 | #ifndef CURL_FORMAT_CURL_OFF_T
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| 99 | # error "CURL_FORMAT_CURL_OFF_T definition is missing!"
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| 100 | Error Compilation_aborted_CURL_FORMAT_CURL_OFF_T_is_missing
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| 101 | #endif
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| 102 |
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| 103 | #ifndef CURL_FORMAT_CURL_OFF_TU
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| 104 | # error "CURL_FORMAT_CURL_OFF_TU definition is missing!"
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| 105 | Error Compilation_aborted_CURL_FORMAT_CURL_OFF_TU_is_missing
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| 106 | #endif
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| 107 |
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| 108 | #ifndef CURL_FORMAT_OFF_T
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| 109 | # error "CURL_FORMAT_OFF_T definition is missing!"
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| 110 | Error Compilation_aborted_CURL_FORMAT_OFF_T_is_missing
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| 111 | #endif
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| 112 |
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| 113 | #ifndef CURL_SIZEOF_CURL_OFF_T
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| 114 | # error "CURL_SIZEOF_CURL_OFF_T definition is missing!"
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| 115 | Error Compilation_aborted_CURL_SIZEOF_CURL_OFF_T_is_missing
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| 116 | #endif
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| 117 |
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| 118 | #ifndef CURL_SUFFIX_CURL_OFF_T
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| 119 | # error "CURL_SUFFIX_CURL_OFF_T definition is missing!"
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| 120 | Error Compilation_aborted_CURL_SUFFIX_CURL_OFF_T_is_missing
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| 121 | #endif
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| 122 |
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| 123 | #ifndef CURL_SUFFIX_CURL_OFF_TU
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| 124 | # error "CURL_SUFFIX_CURL_OFF_TU definition is missing!"
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| 125 | Error Compilation_aborted_CURL_SUFFIX_CURL_OFF_TU_is_missing
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| 126 | #endif
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| 127 |
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| 128 | /*
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| 129 | * Macros private to this header file.
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| 130 | */
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| 131 |
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| 132 | #define CurlchkszEQ(t, s) sizeof(t) == s ? 1 : -1
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| 133 |
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| 134 | #define CurlchkszGE(t1, t2) sizeof(t1) >= sizeof(t2) ? 1 : -1
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| 135 |
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| 136 | /*
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| 137 | * Verify that the size previously defined and expected for long
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| 138 | * is the same as the one reported by sizeof() at compile time.
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| 139 | */
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| 140 |
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| 141 | typedef char
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| 142 | __curl_rule_01__
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| 143 | [CurlchkszEQ(long, CURL_SIZEOF_LONG)];
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| 144 |
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| 145 | /*
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| 146 | * Verify that the size previously defined and expected for
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| 147 | * curl_off_t is actually the the same as the one reported
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| 148 | * by sizeof() at compile time.
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| 149 | */
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| 150 |
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| 151 | typedef char
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| 152 | __curl_rule_02__
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| 153 | [CurlchkszEQ(curl_off_t, CURL_SIZEOF_CURL_OFF_T)];
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| 154 |
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| 155 | /*
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| 156 | * Verify at compile time that the size of curl_off_t as reported
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| 157 | * by sizeof() is greater or equal than the one reported for long
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| 158 | * for the current compilation.
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| 159 | */
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| 160 |
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| 161 | typedef char
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| 162 | __curl_rule_03__
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| 163 | [CurlchkszGE(curl_off_t, long)];
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| 164 |
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| 165 | /*
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| 166 | * Verify that the size previously defined and expected for
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| 167 | * curl_socklen_t is actually the the same as the one reported
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| 168 | * by sizeof() at compile time.
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| 169 | */
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| 170 |
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| 171 | typedef char
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| 172 | __curl_rule_04__
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| 173 | [CurlchkszEQ(curl_socklen_t, CURL_SIZEOF_CURL_SOCKLEN_T)];
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| 174 |
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| 175 | /*
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| 176 | * Verify at compile time that the size of curl_socklen_t as reported
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| 177 | * by sizeof() is greater or equal than the one reported for int for
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| 178 | * the current compilation.
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| 179 | */
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| 180 |
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| 181 | typedef char
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| 182 | __curl_rule_05__
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| 183 | [CurlchkszGE(curl_socklen_t, int)];
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| 184 |
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| 185 | /* ================================================================ */
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| 186 | /* EXTERNALLY AND INTERNALLY VISIBLE DEFINITIONS */
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| 187 | /* ================================================================ */
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| 188 |
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| 189 | /*
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| 190 | * CURL_ISOCPP and CURL_OFF_T_C definitions are done here in order to allow
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| 191 | * these to be visible and exported by the external libcurl interface API,
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| 192 | * while also making them visible to the library internals, simply including
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| 193 | * curl_setup.h, without actually needing to include curl.h internally.
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| 194 | * If some day this section would grow big enough, all this should be moved
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| 195 | * to its own header file.
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| 196 | */
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| 197 |
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| 198 | /*
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| 199 | * Figure out if we can use the ## preprocessor operator, which is supported
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| 200 | * by ISO/ANSI C and C++. Some compilers support it without setting __STDC__
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| 201 | * or __cplusplus so we need to carefully check for them too.
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| 202 | */
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| 203 |
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| 204 | #if defined(__STDC__) || defined(_MSC_VER) || defined(__cplusplus) || \
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| 205 | defined(__HP_aCC) || defined(__BORLANDC__) || defined(__LCC__) || \
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| 206 | defined(__POCC__) || defined(__SALFORDC__) || defined(__HIGHC__) || \
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| 207 | defined(__ILEC400__)
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| 208 | /* This compiler is believed to have an ISO compatible preprocessor */
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| 209 | #define CURL_ISOCPP
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| 210 | #else
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| 211 | /* This compiler is believed NOT to have an ISO compatible preprocessor */
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| 212 | #undef CURL_ISOCPP
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| 213 | #endif
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| 214 |
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| 215 | /*
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| 216 | * Macros for minimum-width signed and unsigned curl_off_t integer constants.
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| 217 | */
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| 218 |
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| 219 | #if defined(__BORLANDC__) && (__BORLANDC__ == 0x0551)
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| 220 | # define __CURL_OFF_T_C_HLPR2(x) x
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| 221 | # define __CURL_OFF_T_C_HLPR1(x) __CURL_OFF_T_C_HLPR2(x)
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| 222 | # define CURL_OFF_T_C(Val) __CURL_OFF_T_C_HLPR1(Val) ## \
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| 223 | __CURL_OFF_T_C_HLPR1(CURL_SUFFIX_CURL_OFF_T)
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| 224 | # define CURL_OFF_TU_C(Val) __CURL_OFF_T_C_HLPR1(Val) ## \
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| 225 | __CURL_OFF_T_C_HLPR1(CURL_SUFFIX_CURL_OFF_TU)
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| 226 | #else
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| 227 | # ifdef CURL_ISOCPP
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| 228 | # define __CURL_OFF_T_C_HLPR2(Val,Suffix) Val ## Suffix
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| 229 | # else
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| 230 | # define __CURL_OFF_T_C_HLPR2(Val,Suffix) Val/**/Suffix
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| 231 | # endif
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| 232 | # define __CURL_OFF_T_C_HLPR1(Val,Suffix) __CURL_OFF_T_C_HLPR2(Val,Suffix)
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| 233 | # define CURL_OFF_T_C(Val) __CURL_OFF_T_C_HLPR1(Val,CURL_SUFFIX_CURL_OFF_T)
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| 234 | # define CURL_OFF_TU_C(Val) __CURL_OFF_T_C_HLPR1(Val,CURL_SUFFIX_CURL_OFF_TU)
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| 235 | #endif
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| 236 |
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| 237 | /*
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| 238 | * Get rid of macros private to this header file.
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| 239 | */
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| 240 |
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| 241 | #undef CurlchkszEQ
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| 242 | #undef CurlchkszGE
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| 243 |
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| 244 | /*
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| 245 | * Get rid of macros not intended to exist beyond this point.
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| 246 | */
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| 247 |
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| 248 | #undef CURL_PULL_WS2TCPIP_H
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| 249 | #undef CURL_PULL_SYS_TYPES_H
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| 250 | #undef CURL_PULL_SYS_SOCKET_H
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| 251 | #undef CURL_PULL_SYS_POLL_H
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| 252 | #undef CURL_PULL_STDINT_H
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| 253 | #undef CURL_PULL_INTTYPES_H
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| 254 |
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| 255 | #undef CURL_TYPEOF_CURL_SOCKLEN_T
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| 256 | #undef CURL_TYPEOF_CURL_OFF_T
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| 257 |
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| 258 | #ifdef CURL_NO_OLDIES
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| 259 | #undef CURL_FORMAT_OFF_T /* not required since 7.19.0 - obsoleted in 7.20.0 */
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| 260 | #endif
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| 261 |
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| 262 | #endif /* __CURL_CURLRULES_H */
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