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1 #ifndef HEADER_CURL_STRTOOFFT_H
2 #define HEADER_CURL_STRTOOFFT_H
3 /***************************************************************************
4  *                                  _   _ ____  _
5  *  Project                     ___| | | |  _ \| |
6  *                             / __| | | | |_) | |
7  *                            | (__| |_| |  _ <| |___
8  *                             \___|\___/|_| \_\_____|
9  *
10  * Copyright (C) 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.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  * SPDX-License-Identifier: curl
24  *
25  ***************************************************************************/
26 
27 #include "curl_setup.h"
28 
29 /*
30  * Determine which string to integral data type conversion function we use
31  * to implement string conversion to our curl_off_t integral data type.
32  *
33  * Notice that curl_off_t might be 64 or 32 bit wide, and that it might use
34  * an underlying data type which might be 'long', 'int64_t', 'long long' or
35  * '__int64' and more remotely other data types.
36  *
37  * On systems where the size of curl_off_t is greater than the size of 'long'
38  * the conversion function to use is strtoll() if it is available, otherwise,
39  * we emulate its functionality with our own clone.
40  *
41  * On systems where the size of curl_off_t is smaller or equal than the size
42  * of 'long' the conversion function to use is strtol().
43  */
44 
45 typedef enum {
46   CURL_OFFT_OK,    /* parsed fine */
47   CURL_OFFT_FLOW,  /* over or underflow */
48   CURL_OFFT_INVAL  /* nothing was parsed */
49 } CURLofft;
50 
51 CURLofft curlx_strtoofft(const char *str, char **endp, int base,
52                          curl_off_t *num);
53 
54 #endif /* HEADER_CURL_STRTOOFFT_H */
55