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Merge pull request #11728 from mpalomas/windows-long-paths

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Windows long paths fix
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Autechre 2020-12-23 15:52:41 +01:00 committed by GitHub
commit 242ad14bd3
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1 changed files with 17 additions and 2 deletions
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19
libretro-common/compat/fopen_utf8.c
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@ -21,6 +21,7 @@
*/
#include <compat/fopen_utf8.h>
#include <retro_miscellaneous.h>
#include <encodings/utf.h>
#include <stdio.h>
#include <stdlib.h>
@ -36,9 +37,13 @@
void *fopen_utf8(const char * filename, const char * mode)
{
const char * filename_local = NULL;
const char* windows_long_prefix = "\\\\?\\";
char long_filename[PATH_MAX_LENGTH];
#if defined(LEGACY_WIN32)
FILE *ret = NULL;
char * filename_local = utf8_to_local_string_alloc(filename);
filename_local = utf8_to_local_string_alloc(filename);
if (!filename_local)
return NULL;
@ -47,7 +52,17 @@ void *fopen_utf8(const char * filename, const char * mode)
free(filename_local);
return ret;
#else
wchar_t * filename_w = utf8_to_utf16_string_alloc(filename);
#ifdef _WIN32
/*
prefix to tell Windows to bypass the ~260 characters limit in many I/O APIs
https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file
*/
snprintf(long_filename, PATH_MAX_LENGTH, "%s%s", windows_long_prefix, filename);
filename_local = long_filename;
#else
filename_local = filename;
#endif
wchar_t * filename_w = utf8_to_utf16_string_alloc(filename_local);
wchar_t * mode_w = utf8_to_utf16_string_alloc(mode);
FILE* ret = _wfopen(filename_w, mode_w);
free(filename_w);