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synced 2026-04-21 08:22:13 +03:00
cb2bcb681f
Add new functions in `curlx/warnless.h` for controlled type conversions: * curlx_uitouz, convert unsigned into to size_t (should always work) * curlx_uztoso, convert size_t to curl_off_t, capping at CURL_OFF_T_MAX * curlx_sztouz, convert ssize_t to size_t, return TRUE when ok * curlx_sotouz_range, convert curl_off_t to size_t interval, capping values to interval bounds Remove some unnecesary casts, convert some internal recv functions to the "return result, have size_t* arg" pattern. Closes #19495
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
#ifndef HEADER_CURL_WARNLESS_H
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#define HEADER_CURL_WARNLESS_H
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/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at https://curl.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* SPDX-License-Identifier: curl
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*
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***************************************************************************/
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#include "../curl_setup.h"
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#ifdef USE_WINSOCK
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#include <curl/curl.h> /* for curl_socket_t */
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#endif
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#define CURLX_FUNCTION_CAST(target_type, func) \
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(target_type)(void (*) (void))(func)
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unsigned char curlx_ultouc(unsigned long ulnum);
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int curlx_uztosi(size_t uznum);
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unsigned long curlx_uztoul(size_t uznum);
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unsigned int curlx_uztoui(size_t uznum);
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int curlx_sltosi(long slnum);
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unsigned int curlx_sltoui(long slnum);
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unsigned short curlx_sltous(long slnum);
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ssize_t curlx_uztosz(size_t uznum);
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size_t curlx_sotouz(curl_off_t sonum);
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int curlx_sztosi(ssize_t sznum);
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unsigned short curlx_uitous(unsigned int uinum);
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size_t curlx_sitouz(int sinum);
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size_t curlx_uitouz(unsigned int uinum);
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/* Convert a curl_off_t to fit into size_t interval [uzmin, uzmax].
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* values outside this interval give the lower/upper bound. */
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size_t curlx_sotouz_range(curl_off_t sonum, size_t uzmin, size_t uzmax);
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/* Convert a size_t to curl_off_t, return CURL_OFF_T_MAX if too large. */
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curl_off_t curlx_uztoso(size_t uznum);
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/* Convert a ssize_t to size_t, return FALSE if negative and set 0 */
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bool curlx_sztouz(ssize_t sznum, size_t *puznum);
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#ifdef _WIN32
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#undef read
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#define read(fd, buf, count) (ssize_t)_read(fd, buf, curlx_uztoui(count))
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#undef write
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#define write(fd, buf, count) (ssize_t)_write(fd, buf, curlx_uztoui(count))
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#endif
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#endif /* HEADER_CURL_WARNLESS_H */
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