c1bc70b711
A lot of files were missing copyright field in the header and
the Blender Foundation contributed to them in a sense of bug
fixing and general maintenance.
This change makes it explicit that those files are at least
partially copyrighted by the Blender Foundation.
Note that this does not make it so the Blender Foundation is
the only holder of the copyright in those files, and developers
who do not have a signed contract with the foundation still
hold the copyright as well.
Another aspect of this change is using SPDX format for the
header. We already used it for the license specification,
and now we state it for the copyright as well, following the
FAQ:
https://reuse.software/faq/
150 lines
3.5 KiB
C
150 lines
3.5 KiB
C
/* SPDX-FileCopyrightText: 2023 Blender Foundation
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup bli
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*
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* Posix compatibility functions for windows dealing with DIR
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* (opendir, readdir, closedir)
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*/
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#ifdef WIN32
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/* Standalone for inclusion in binaries other than Blender. */
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# ifdef USE_STANDALONE
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# define MEM_mallocN(size, str) ((void)str, malloc(size))
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# define MEM_callocN(size, str) ((void)str, calloc(size, 1))
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# define MEM_freeN(ptr) free(ptr)
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# else
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# include "MEM_guardedalloc.h"
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# endif
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# define WIN32_SKIP_HKEY_PROTECTION /* Need to use `HKEY`. */
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# include "BLI_utildefines.h"
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# include "BLI_winstuff.h"
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# include "utfconv.h"
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# define PATH_SUFFIX "\\*"
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# define PATH_SUFFIX_LEN 2
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/* keep local to this file */
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struct __dirstream {
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HANDLE handle;
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WIN32_FIND_DATAW data;
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char path[MAX_PATH + PATH_SUFFIX_LEN];
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long dd_loc;
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long dd_size;
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char dd_buf[4096];
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void *dd_direct;
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struct dirent direntry;
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};
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/**
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* \note MinGW (FREE_WINDOWS) has #opendir() and #_wopendir(), and only the
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* latter accepts a path name of #wchar_t type. Rather than messing up with
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* extra #ifdef's here and there, Blender's own implementations of #opendir()
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* and related functions are used to properly support paths with non-ASCII
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* characters. (kjym3)
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*/
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DIR *opendir(const char *path)
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{
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wchar_t *path_16 = alloc_utf16_from_8(path, 0);
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int path_len;
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DIR *newd = NULL;
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if ((GetFileAttributesW(path_16) & FILE_ATTRIBUTE_DIRECTORY) &&
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((path_len = strlen(path)) < (sizeof(newd->path) - PATH_SUFFIX_LEN)))
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{
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newd = MEM_mallocN(sizeof(DIR), "opendir");
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newd->handle = INVALID_HANDLE_VALUE;
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memcpy(newd->path, path, path_len);
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memcpy(newd->path + path_len, PATH_SUFFIX, PATH_SUFFIX_LEN + 1);
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newd->direntry.d_ino = 0;
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newd->direntry.d_off = 0;
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newd->direntry.d_reclen = 0;
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newd->direntry.d_name = NULL;
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}
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free(path_16);
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return newd;
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}
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static char *BLI_alloc_utf_8_from_16(wchar_t *in16, size_t add)
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{
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size_t bsize = count_utf_8_from_16(in16);
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char *out8 = NULL;
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if (!bsize) {
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return NULL;
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}
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out8 = (char *)MEM_mallocN(sizeof(char) * (bsize + add), "UTF-8 String");
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conv_utf_16_to_8(in16, out8, bsize);
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return out8;
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}
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static wchar_t *UNUSED_FUNCTION(BLI_alloc_utf16_from_8)(char *in8, size_t add)
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{
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size_t bsize = count_utf_16_from_8(in8);
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wchar_t *out16 = NULL;
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if (!bsize) {
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return NULL;
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}
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out16 = (wchar_t *)MEM_mallocN(sizeof(wchar_t) * (bsize + add), "UTF-16 String");
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conv_utf_8_to_16(in8, out16, bsize);
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return out16;
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}
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struct dirent *readdir(DIR *dp)
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{
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if (dp->direntry.d_name) {
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MEM_freeN(dp->direntry.d_name);
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dp->direntry.d_name = NULL;
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}
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if (dp->handle == INVALID_HANDLE_VALUE) {
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wchar_t *path_16 = alloc_utf16_from_8(dp->path, 0);
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dp->handle = FindFirstFileW(path_16, &(dp->data));
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free(path_16);
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if (dp->handle == INVALID_HANDLE_VALUE) {
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return NULL;
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}
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dp->direntry.d_name = BLI_alloc_utf_8_from_16(dp->data.cFileName, 0);
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return &dp->direntry;
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}
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else if (FindNextFileW(dp->handle, &(dp->data))) {
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dp->direntry.d_name = BLI_alloc_utf_8_from_16(dp->data.cFileName, 0);
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return &dp->direntry;
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}
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else {
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return NULL;
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}
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}
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int closedir(DIR *dp)
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{
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if (dp->direntry.d_name) {
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MEM_freeN(dp->direntry.d_name);
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}
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if (dp->handle != INVALID_HANDLE_VALUE) {
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FindClose(dp->handle);
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}
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MEM_freeN(dp);
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return 0;
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}
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/* End of copied part */
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#else
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/* intentionally empty for UNIX */
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#endif
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