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554dfa5568
Windows CE support was limited to successful builds with ming32ce (a toolchain that hasn't seen an update since 2009, using an ancient gcc version and "old mingw"-style SDK headers, that curl deprecated earlier). Builds with MSVC were broken for a long time. mingw32ce builds were never actually tested and runtime and unlikely to work due to missing stubs. Windows CE toolchains also miss to comply with C89. Paired with lack of demand and support for the platform, curl deprecated it earlier. This patch removes support from the codebase to ease maintaining Windows codepaths. Follow-up tof98c0ba834#17924 Follow-up to8491e6574c#17379 Follow-up to2a292c3984#15975 Closes #17927
127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
/***************************************************************************
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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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/*
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* curlx_winapi_strerror:
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* Variant of curlx_strerror if the error code is definitely Windows API.
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*/
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#ifdef _WIN32
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#include "winapi.h"
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#ifndef WITHOUT_LIBCURL
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#include <curl/mprintf.h>
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#define SNPRINTF curl_msnprintf
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#else
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/* when built for the test servers */
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/* adjust for old MSVC */
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#if defined(_MSC_VER) && (_MSC_VER < 1900)
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#define SNPRINTF _snprintf
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#else
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#define SNPRINTF snprintf
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#endif
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#endif /* !WITHOUT_LIBCURL */
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/* This is a helper function for curlx_strerror that converts Windows API error
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* codes (GetLastError) to error messages.
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* Returns NULL if no error message was found for error code.
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*/
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const char *curlx_get_winapi_error(DWORD err, char *buf, size_t buflen)
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{
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char *p;
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wchar_t wbuf[256];
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if(!buflen)
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return NULL;
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*buf = '\0';
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*wbuf = L'\0';
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/* We return the local codepage version of the error string because if it is
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output to the user's terminal it will likely be with functions which
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expect the local codepage (eg fprintf, failf, infof). */
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if(FormatMessageW((FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS), NULL, err,
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LANG_NEUTRAL, wbuf, CURL_ARRAYSIZE(wbuf), NULL)) {
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size_t written = wcstombs(buf, wbuf, buflen - 1);
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if(written != (size_t)-1)
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buf[written] = '\0';
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else
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*buf = '\0';
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}
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/* Truncate multiple lines */
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p = strchr(buf, '\n');
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if(p) {
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if(p > buf && *(p-1) == '\r')
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*(p-1) = '\0';
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else
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*p = '\0';
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}
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return *buf ? buf : NULL;
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}
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const char *curlx_winapi_strerror(DWORD err, char *buf, size_t buflen)
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{
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DWORD old_win_err = GetLastError();
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int old_errno = errno;
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if(!buflen)
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return NULL;
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*buf = '\0';
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#ifndef CURL_DISABLE_VERBOSE_STRINGS
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if(!curlx_get_winapi_error(err, buf, buflen)) {
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#if defined(__GNUC__) && __GNUC__ >= 7
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#pragma GCC diagnostic push
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#pragma GCC diagnostic warning "-Wformat-truncation=1"
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#endif
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/* some GCC compilers cause false positive warnings if we allow this
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warning */
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SNPRINTF(buf, buflen, "Unknown error %lu (0x%08lx)", err, err);
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#if defined(__GNUC__) && __GNUC__ >= 7
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#pragma GCC diagnostic pop
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#endif
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}
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#else
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{
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const char *txt = (err == ERROR_SUCCESS) ? "No error" : "Error";
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if(strlen(txt) < buflen)
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strcpy(buf, txt);
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}
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#endif
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if(errno != old_errno)
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errno = old_errno;
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if(old_win_err != GetLastError())
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SetLastError(old_win_err);
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return buf;
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}
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#endif /* _WIN32 */
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