From b623f5953691b2a0614e6f1f4def86bdbb9a4113 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Sat, 8 Aug 2020 11:53:00 +0200 Subject: New upstream version 5.2.0Beta2.1 --- app/bin/include/dirent.h | 1254 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1254 insertions(+) create mode 100644 app/bin/include/dirent.h (limited to 'app/bin/include/dirent.h') diff --git a/app/bin/include/dirent.h b/app/bin/include/dirent.h new file mode 100644 index 0000000..fdfbe5b --- /dev/null +++ b/app/bin/include/dirent.h @@ -0,0 +1,1254 @@ +/* + * Dirent interface for Microsoft Visual Studio + * + * Copyright (C) 2006-2012 Toni Ronkko + * This file is part of dirent. Dirent may be freely distributed + * under the MIT license. For all details and documentation, see + * https://github.com/tronkko/dirent + */ +#ifndef DIRENT_H +#define DIRENT_H + + /* + * Include windows.h without Windows Sockets 1.1 to prevent conflicts with + * Windows Sockets 2.0. + */ +#ifndef WIN32_LEAN_AND_MEAN +# define WIN32_LEAN_AND_MEAN +#endif +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + + /* Indicates that d_type field is available in dirent structure */ +#define _DIRENT_HAVE_D_TYPE + +/* Indicates that d_namlen field is available in dirent structure */ +#define _DIRENT_HAVE_D_NAMLEN + +/* Entries missing from MSVC 6.0 */ +#if !defined(FILE_ATTRIBUTE_DEVICE) +# define FILE_ATTRIBUTE_DEVICE 0x40 +#endif + +/* File type and permission flags for stat(), general mask */ +#if !defined(S_IFMT) +# define S_IFMT _S_IFMT +#endif + +/* Directory bit */ +#if !defined(S_IFDIR) +# define S_IFDIR _S_IFDIR +#endif + +/* Character device bit */ +#if !defined(S_IFCHR) +# define S_IFCHR _S_IFCHR +#endif + +/* Pipe bit */ +#if !defined(S_IFFIFO) +# define S_IFFIFO _S_IFFIFO +#endif + +/* Regular file bit */ +#if !defined(S_IFREG) +# define S_IFREG _S_IFREG +#endif + +/* Read permission */ +#if !defined(S_IREAD) +# define S_IREAD _S_IREAD +#endif + +/* Write permission */ +#if !defined(S_IWRITE) +# define S_IWRITE _S_IWRITE +#endif + +/* Execute permission */ +#if !defined(S_IEXEC) +# define S_IEXEC _S_IEXEC +#endif + +/* Pipe */ +#if !defined(S_IFIFO) +# define S_IFIFO _S_IFIFO +#endif + +/* Block device */ +#if !defined(S_IFBLK) +# define S_IFBLK 0 +#endif + +/* Link */ +#if !defined(S_IFLNK) +# define S_IFLNK 0 +#endif + +/* Socket */ +#if !defined(S_IFSOCK) +# define S_IFSOCK 0 +#endif + +/* Read user permission */ +#if !defined(S_IRUSR) +# define S_IRUSR S_IREAD +#endif + +/* Write user permission */ +#if !defined(S_IWUSR) +# define S_IWUSR S_IWRITE +#endif + +/* Execute user permission */ +#if !defined(S_IXUSR) +# define S_IXUSR 0 +#endif + +/* Read group permission */ +#if !defined(S_IRGRP) +# define S_IRGRP 0 +#endif + +/* Write group permission */ +#if !defined(S_IWGRP) +# define S_IWGRP 0 +#endif + +/* Execute group permission */ +#if !defined(S_IXGRP) +# define S_IXGRP 0 +#endif + +/* Read others permission */ +#if !defined(S_IROTH) +# define S_IROTH 0 +#endif + +/* Write others permission */ +#if !defined(S_IWOTH) +# define S_IWOTH 0 +#endif + +/* Execute others permission */ +#if !defined(S_IXOTH) +# define S_IXOTH 0 +#endif + +/* Maximum length of file name */ +#if !defined(PATH_MAX) +# define PATH_MAX MAX_PATH +#endif +#if !defined(FILENAME_MAX) +# define FILENAME_MAX MAX_PATH +#endif +#if !defined(NAME_MAX) +# define NAME_MAX FILENAME_MAX +#endif + +/* File type flags for d_type */ +#define DT_UNKNOWN 0 +#define DT_REG S_IFREG +#define DT_DIR S_IFDIR +#define DT_FIFO S_IFIFO +#define DT_SOCK S_IFSOCK +#define DT_CHR S_IFCHR +#define DT_BLK S_IFBLK +#define DT_LNK S_IFLNK + +/* Macros for converting between st_mode and d_type */ +#define IFTODT(mode) ((mode) & S_IFMT) +#define DTTOIF(type) (type) + +/* + * File type macros. Note that block devices, sockets and links cannot be + * distinguished on Windows and the macros S_ISBLK, S_ISSOCK and S_ISLNK are + * only defined for compatibility. These macros should always return false + * on Windows. + */ +#if !defined(S_ISFIFO) +# define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO) +#endif +#if !defined(S_ISDIR) +# define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR) +#endif +#if !defined(S_ISREG) +# define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG) +#endif +#if !defined(S_ISLNK) +# define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK) +#endif +#if !defined(S_ISSOCK) +# define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK) +#endif +#if !defined(S_ISCHR) +# define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR) +#endif +#if !defined(S_ISBLK) +# define S_ISBLK(mode) (((mode) & S_IFMT) == S_IFBLK) +#endif + + /* Return the exact length of the file name without zero terminator */ +#define _D_EXACT_NAMLEN(p) ((p)->d_namlen) + +/* Return the maximum size of a file name */ +#define _D_ALLOC_NAMLEN(p) ((PATH_MAX)+1) + + +#ifdef __cplusplus +extern "C" { +#endif + + + /* Wide-character version */ + struct _wdirent { + /* Always zero */ + long d_ino; + + /* File position within stream */ + long d_off; + + /* Structure size */ + unsigned short d_reclen; + + /* Length of name without \0 */ + size_t d_namlen; + + /* File type */ + int d_type; + + /* File name */ + wchar_t d_name[PATH_MAX + 1]; + }; + typedef struct _wdirent _wdirent; + + struct _WDIR { + /* Current directory entry */ + struct _wdirent ent; + + /* Private file data */ + WIN32_FIND_DATAW data; + + /* True if data is valid */ + int cached; + + /* Win32 search handle */ + HANDLE handle; + + /* Initial directory name */ + wchar_t *patt; + }; + typedef struct _WDIR _WDIR; + + /* Multi-byte character version */ + struct dirent { + /* Always zero */ + long d_ino; + + /* File position within stream */ + long d_off; + + /* Structure size */ + unsigned short d_reclen; + + /* Length of name without \0 */ + size_t d_namlen; + + /* File type */ + int d_type; + + /* File name */ + char d_name[PATH_MAX + 1]; + }; + typedef struct dirent dirent; + + struct DIR { + struct dirent ent; + struct _WDIR *wdirp; + }; + typedef struct DIR DIR; + + + /* Dirent functions */ + static DIR *opendir(const char *dirname); + static _WDIR *_wopendir(const wchar_t *dirname); + + static struct dirent *readdir(DIR *dirp); + static struct _wdirent *_wreaddir(_WDIR *dirp); + + static int readdir_r( + DIR *dirp, struct dirent *entry, struct dirent **result); + static int _wreaddir_r( + _WDIR *dirp, struct _wdirent *entry, struct _wdirent **result); + + static int closedir(DIR *dirp); + static int _wclosedir(_WDIR *dirp); + + static void rewinddir(DIR* dirp); + static void _wrewinddir(_WDIR* dirp); + + static int scandir(const char *dirname, struct dirent ***namelist, + int(*filter)(const struct dirent*), + int(*compare)(const struct dirent**, const struct dirent**)); + + static int alphasort(const struct dirent **a, const struct dirent **b); + + static int versionsort(const struct dirent **a, const struct dirent **b); + + + /* For compatibility with Symbian */ +#define wdirent _wdirent +#define WDIR _WDIR +#define wopendir _wopendir +#define wreaddir _wreaddir +#define wclosedir _wclosedir +#define wrewinddir _wrewinddir + + +/* Internal utility functions */ + static WIN32_FIND_DATAW *dirent_first(_WDIR *dirp); + static WIN32_FIND_DATAW *dirent_next(_WDIR *dirp); + + static int dirent_mbstowcs_s( + size_t *pReturnValue, + wchar_t *wcstr, + size_t sizeInWords, + const char *mbstr, + size_t count); + + static int dirent_wcstombs_s( + size_t *pReturnValue, + char *mbstr, + size_t sizeInBytes, + const wchar_t *wcstr, + size_t count); + + static void dirent_set_errno(int error); + + + /* + * Open directory stream DIRNAME for read and return a pointer to the + * internal working area that is used to retrieve individual directory + * entries. + */ + static _WDIR* + _wopendir( + const wchar_t *dirname) + { + _WDIR *dirp = NULL; + int error; + + /* Must have directory name */ + if (dirname == NULL || dirname[0] == '\0') { + dirent_set_errno(ENOENT); + return NULL; + } + + /* Allocate new _WDIR structure */ + dirp = (_WDIR*)malloc(sizeof(struct _WDIR)); + if (dirp != NULL) { + DWORD n; + + /* Reset _WDIR structure */ + dirp->handle = INVALID_HANDLE_VALUE; + dirp->patt = NULL; + dirp->cached = 0; + + /* Compute the length of full path plus zero terminator + * + * Note that on WinRT there's no way to convert relative paths + * into absolute paths, so just assume it is an absolute path. + */ +# if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP) + n = wcslen(dirname); +# else + n = GetFullPathNameW(dirname, 0, NULL, NULL); +# endif + + /* Allocate room for absolute directory name and search pattern */ + dirp->patt = (wchar_t*)malloc(sizeof(wchar_t) * n + 16); + if (dirp->patt) { + + /* + * Convert relative directory name to an absolute one. This + * allows rewinddir() to function correctly even when current + * working directory is changed between opendir() and rewinddir(). + * + * Note that on WinRT there's no way to convert relative paths + * into absolute paths, so just assume it is an absolute path. + */ +# if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_PHONE_APP) + wcsncpy_s(dirp->patt, n + 1, dirname, n); +# else + n = GetFullPathNameW(dirname, n, dirp->patt, NULL); +# endif + if (n > 0) { + wchar_t *p; + + /* Append search pattern \* to the directory name */ + p = dirp->patt + n; + if (dirp->patt < p) { + switch (p[-1]) { + case '\\': + case '/': + case ':': + /* Directory ends in path separator, e.g. c:\temp\ */ + /*NOP*/; + break; + + default: + /* Directory name doesn't end in path separator */ + *p++ = '\\'; + } + } + *p++ = '*'; + *p = '\0'; + + /* Open directory stream and retrieve the first entry */ + if (dirent_first(dirp)) { + /* Directory stream opened successfully */ + error = 0; + } + else { + /* Cannot retrieve first entry */ + error = 1; + dirent_set_errno(ENOENT); + } + + } + else { + /* Cannot retrieve full path name */ + dirent_set_errno(ENOENT); + error = 1; + } + + } + else { + /* Cannot allocate memory for search pattern */ + error = 1; + } + + } + else { + /* Cannot allocate _WDIR structure */ + error = 1; + } + + /* Clean up in case of error */ + if (error && dirp) { + _wclosedir(dirp); + dirp = NULL; + } + + return dirp; + } + + /* + * Read next directory entry. + * + * Returns pointer to static directory entry which may be overwritten by + * subsequent calls to _wreaddir(). + */ + static struct _wdirent* + _wreaddir( + _WDIR *dirp) + { + struct _wdirent *entry; + + /* + * Read directory entry to buffer. We can safely ignore the return value + * as entry will be set to NULL in case of error. + */ + (void)_wreaddir_r(dirp, &dirp->ent, &entry); + + /* Return pointer to statically allocated directory entry */ + return entry; + } + + /* + * Read next directory entry. + * + * Returns zero on success. If end of directory stream is reached, then sets + * result to NULL and returns zero. + */ + static int + _wreaddir_r( + _WDIR *dirp, + struct _wdirent *entry, + struct _wdirent **result) + { + WIN32_FIND_DATAW *datap; + + /* Read next directory entry */ + datap = dirent_next(dirp); + if (datap) { + size_t n; + DWORD attr; + + /* + * Copy file name as wide-character string. If the file name is too + * long to fit in to the destination buffer, then truncate file name + * to PATH_MAX characters and zero-terminate the buffer. + */ + n = 0; + while (n < PATH_MAX && datap->cFileName[n] != 0) { + entry->d_name[n] = datap->cFileName[n]; + n++; + } + entry->d_name[n] = 0; + + /* Length of file name excluding zero terminator */ + entry->d_namlen = n; + + /* File type */ + attr = datap->dwFileAttributes; + if ((attr & FILE_ATTRIBUTE_DEVICE) != 0) { + entry->d_type = DT_CHR; + } + else if ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) { + entry->d_type = DT_DIR; + } + else { + entry->d_type = DT_REG; + } + + /* Reset dummy fields */ + entry->d_ino = 0; + entry->d_off = 0; + entry->d_reclen = sizeof(struct _wdirent); + + /* Set result address */ + *result = entry; + + } + else { + + /* Return NULL to indicate end of directory */ + *result = NULL; + + } + + return /*OK*/0; + } + + /* + * Close directory stream opened by opendir() function. This invalidates the + * DIR structure as well as any directory entry read previously by + * _wreaddir(). + */ + static int + _wclosedir( + _WDIR *dirp) + { + int ok; + if (dirp) { + + /* Release search handle */ + if (dirp->handle != INVALID_HANDLE_VALUE) { + FindClose(dirp->handle); + dirp->handle = INVALID_HANDLE_VALUE; + } + + /* Release search pattern */ + if (dirp->patt) { + free(dirp->patt); + dirp->patt = NULL; + } + + /* Release directory structure */ + free(dirp); + ok = /*success*/0; + + } + else { + + /* Invalid directory stream */ + dirent_set_errno(EBADF); + ok = /*failure*/-1; + + } + return ok; + } + + /* + * Rewind directory stream such that _wreaddir() returns the very first + * file name again. + */ + static void + _wrewinddir( + _WDIR* dirp) + { + if (dirp) { + /* Release existing search handle */ + if (dirp->handle != INVALID_HANDLE_VALUE) { + FindClose(dirp->handle); + } + + /* Open new search handle */ + dirent_first(dirp); + } + } + + /* Get first directory entry (internal) */ + static WIN32_FIND_DATAW* + dirent_first( + _WDIR *dirp) + { + WIN32_FIND_DATAW *datap; + + /* Open directory and retrieve the first entry */ + dirp->handle = FindFirstFileExW( + dirp->patt, FindExInfoStandard, &dirp->data, + FindExSearchNameMatch, NULL, 0); + if (dirp->handle != INVALID_HANDLE_VALUE) { + + /* a directory entry is now waiting in memory */ + datap = &dirp->data; + dirp->cached = 1; + + } + else { + + /* Failed to re-open directory: no directory entry in memory */ + dirp->cached = 0; + datap = NULL; + + } + return datap; + } + + /* + * Get next directory entry (internal). + * + * Returns + */ + static WIN32_FIND_DATAW* + dirent_next( + _WDIR *dirp) + { + WIN32_FIND_DATAW *p; + + /* Get next directory entry */ + if (dirp->cached != 0) { + + /* A valid directory entry already in memory */ + p = &dirp->data; + dirp->cached = 0; + + } + else if (dirp->handle != INVALID_HANDLE_VALUE) { + + /* Get the next directory entry from stream */ + if (FindNextFileW(dirp->handle, &dirp->data) != FALSE) { + /* Got a file */ + p = &dirp->data; + } + else { + /* The very last entry has been processed or an error occurred */ + FindClose(dirp->handle); + dirp->handle = INVALID_HANDLE_VALUE; + p = NULL; + } + + } + else { + + /* End of directory stream reached */ + p = NULL; + + } + + return p; + } + + /* + * Open directory stream using plain old C-string. + */ + static DIR* + opendir( + const char *dirname) + { + struct DIR *dirp; + int error; + + /* Must have directory name */ + if (dirname == NULL || dirname[0] == '\0') { + dirent_set_errno(ENOENT); + return NULL; + } + + /* Allocate memory for DIR structure */ + dirp = (DIR*)malloc(sizeof(struct DIR)); + if (dirp) { + wchar_t wname[PATH_MAX + 1]; + size_t n; + + /* Convert directory name to wide-character string */ + error = dirent_mbstowcs_s( + &n, wname, PATH_MAX + 1, dirname, PATH_MAX + 1); + if (!error) { + + /* Open directory stream using wide-character name */ + dirp->wdirp = _wopendir(wname); + if (dirp->wdirp) { + /* Directory stream opened */ + error = 0; + } + else { + /* Failed to open directory stream */ + error = 1; + } + + } + else { + /* + * Cannot convert file name to wide-character string. This + * occurs if the string contains invalid multi-byte sequences or + * the output buffer is too small to contain the resulting + * string. + */ + error = 1; + } + + } + else { + /* Cannot allocate DIR structure */ + error = 1; + } + + /* Clean up in case of error */ + if (error && dirp) { + free(dirp); + dirp = NULL; + } + + return dirp; + } + + /* + * Read next directory entry. + */ + static struct dirent* + readdir( + DIR *dirp) + { + struct dirent *entry; + + /* + * Read directory entry to buffer. We can safely ignore the return value + * as entry will be set to NULL in case of error. + */ + (void)readdir_r(dirp, &dirp->ent, &entry); + + /* Return pointer to statically allocated directory entry */ + return entry; + } + + /* + * Read next directory entry into called-allocated buffer. + * + * Returns zero on success. If the end of directory stream is reached, then + * sets result to NULL and returns zero. + */ + static int + readdir_r( + DIR *dirp, + struct dirent *entry, + struct dirent **result) + { + WIN32_FIND_DATAW *datap; + + /* Read next directory entry */ + datap = dirent_next(dirp->wdirp); + if (datap) { + size_t n; + int error; + + /* Attempt to convert file name to multi-byte string */ + error = dirent_wcstombs_s( + &n, entry->d_name, PATH_MAX + 1, datap->cFileName, PATH_MAX + 1); + + /* + * If the file name cannot be represented by a multi-byte string, + * then attempt to use old 8+3 file name. This allows traditional + * Unix-code to access some file names despite of unicode + * characters, although file names may seem unfamiliar to the user. + * + * Be ware that the code below cannot come up with a short file + * name unless the file system provides one. At least + * VirtualBox shared folders fail to do this. + */ + if (error && datap->cAlternateFileName[0] != '\0') { + error = dirent_wcstombs_s( + &n, entry->d_name, PATH_MAX + 1, + datap->cAlternateFileName, PATH_MAX + 1); + } + + if (!error) { + DWORD attr; + + /* Length of file name excluding zero terminator */ + entry->d_namlen = n - 1; + + /* File attributes */ + attr = datap->dwFileAttributes; + if ((attr & FILE_ATTRIBUTE_DEVICE) != 0) { + entry->d_type = DT_CHR; + } + else if ((attr & FILE_ATTRIBUTE_DIRECTORY) != 0) { + entry->d_type = DT_DIR; + } + else { + entry->d_type = DT_REG; + } + + /* Reset dummy fields */ + entry->d_ino = 0; + entry->d_off = 0; + entry->d_reclen = sizeof(struct dirent); + + } + else { + + /* + * Cannot convert file name to multi-byte string so construct + * an erroneous directory entry and return that. Note that + * we cannot return NULL as that would stop the processing + * of directory entries completely. + */ + entry->d_name[0] = '?'; + entry->d_name[1] = '\0'; + entry->d_namlen = 1; + entry->d_type = DT_UNKNOWN; + entry->d_ino = 0; + entry->d_off = -1; + entry->d_reclen = 0; + + } + + /* Return pointer to directory entry */ + *result = entry; + + } + else { + + /* No more directory entries */ + *result = NULL; + + } + + return /*OK*/0; + } + + /* + * Close directory stream. + */ + static int + closedir( + DIR *dirp) + { + int ok; + if (dirp) { + + /* Close wide-character directory stream */ + ok = _wclosedir(dirp->wdirp); + dirp->wdirp = NULL; + + /* Release multi-byte character version */ + free(dirp); + + } + else { + + /* Invalid directory stream */ + dirent_set_errno(EBADF); + ok = /*failure*/-1; + + } + return ok; + } + + /* + * Rewind directory stream to beginning. + */ + static void + rewinddir( + DIR* dirp) + { + /* Rewind wide-character string directory stream */ + _wrewinddir(dirp->wdirp); + } + + /* + * Scan directory for entries. + */ + static int + scandir( + const char *dirname, + struct dirent ***namelist, + int(*filter)(const struct dirent*), + int(*compare)(const struct dirent**, const struct dirent**)) + { + struct dirent **files = NULL; + size_t size = 0; + size_t allocated = 0; + const size_t init_size = 1; + DIR *dir = NULL; + struct dirent *entry; + struct dirent *tmp = NULL; + size_t i; + int result = 0; + + /* Open directory stream */ + dir = opendir(dirname); + if (dir) { + + /* Read directory entries to memory */ + while (1) { + + /* Enlarge pointer table to make room for another pointer */ + if (size >= allocated) { + void *p; + size_t num_entries; + + /* Compute number of entries in the enlarged pointer table */ + if (size < init_size) { + /* Allocate initial pointer table */ + num_entries = init_size; + } + else { + /* Double the size */ + num_entries = size * 2; + } + + /* Allocate first pointer table or enlarge existing table */ + p = realloc(files, sizeof(void*) * num_entries); + if (p != NULL) { + /* Got the memory */ + files = (dirent**)p; + allocated = num_entries; + } + else { + /* Out of memory */ + result = -1; + break; + } + + } + + /* Allocate room for temporary directory entry */ + if (tmp == NULL) { + tmp = (struct dirent*) malloc(sizeof(struct dirent)); + if (tmp == NULL) { + /* Cannot allocate temporary directory entry */ + result = -1; + break; + } + } + + /* Read directory entry to temporary area */ + if (readdir_r(dir, tmp, &entry) == /*OK*/0) { + + /* Did we get an entry? */ + if (entry != NULL) { + int pass; + + /* Determine whether to include the entry in result */ + if (filter) { + /* Let the filter function decide */ + pass = filter(tmp); + } + else { + /* No filter function, include everything */ + pass = 1; + } + + if (pass) { + /* Store the temporary entry to pointer table */ + files[size++] = tmp; + tmp = NULL; + + /* Keep up with the number of files */ + result++; + } + + } + else { + + /* + * End of directory stream reached => sort entries and + * exit. + */ + qsort(files, size, sizeof(void*), + (int(*) (const void*, const void*)) compare); + break; + + } + + } + else { + /* Error reading directory entry */ + result = /*Error*/ -1; + break; + } + + } + + } + else { + /* Cannot open directory */ + result = /*Error*/ -1; + } + + /* Release temporary directory entry */ + if (tmp) { + free(tmp); + } + + /* Release allocated memory on error */ + if (result < 0) { + for (i = 0; i < size; i++) { + free(files[i]); + } + free(files); + files = NULL; + } + + /* Close directory stream */ + if (dir) { + closedir(dir); + } + + /* Pass pointer table to caller */ + if (namelist) { + *namelist = files; + } + return result; + } + + /* Alphabetical sorting */ + static int + alphasort( + const struct dirent **a, const struct dirent **b) + { + return strcoll((*a)->d_name, (*b)->d_name); + } + + /* Sort versions */ + static int + versionsort( + const struct dirent **a, const struct dirent **b) + { + /* FIXME: implement strverscmp and use that */ + return alphasort(a, b); + } + + /* Convert multi-byte string to wide character string */ + static int + dirent_mbstowcs_s( + size_t *pReturnValue, + wchar_t *wcstr, + size_t sizeInWords, + const char *mbstr, + size_t count) + { + int error; + int n; + size_t len; + UINT cp; + DWORD flags; + + /* Determine code page for multi-byte string */ + if (AreFileApisANSI()) { + /* Default ANSI code page */ + cp = GetACP(); + } + else { + /* Default OEM code page */ + cp = GetOEMCP(); + } + + /* + * Determine flags based on the character set. For more information, + * please see https://docs.microsoft.com/fi-fi/windows/desktop/api/stringapiset/nf-stringapiset-multibytetowidechar + */ + switch (cp) { + case 42: + case 50220: + case 50221: + case 50222: + case 50225: + case 50227: + case 50229: + case 57002: + case 57003: + case 57004: + case 57005: + case 57006: + case 57007: + case 57008: + case 57009: + case 57010: + case 57011: + case 65000: + /* MultiByteToWideChar does not support MB_ERR_INVALID_CHARS */ + flags = 0; + break; + + default: + /* + * Ask MultiByteToWideChar to return an error if a multi-byte + * character cannot be converted to a wide-character. + */ + flags = MB_ERR_INVALID_CHARS; + } + + /* Compute the length of input string without zero-terminator */ + len = 0; + while (mbstr[len] != '\0' && len < count) { + len++; + } + + /* Convert to wide-character string */ + n = MultiByteToWideChar( + /* Source code page */ cp, + /* Flags */ flags, + /* Pointer to string to convert */ mbstr, + /* Size of multi-byte string */ (int)len, + /* Pointer to output buffer */ wcstr, + /* Size of output buffer */ sizeInWords - 1 + ); + + /* Ensure that output buffer is zero-terminated */ + wcstr[n] = '\0'; + + /* Return length of wide-character string with zero-terminator */ + *pReturnValue = (size_t)(n + 1); + + /* Return zero if conversion succeeded */ + if (n > 0) { + error = 0; + } + else { + error = 1; + } + return error; + } + + /* Convert wide-character string to multi-byte string */ + static int + dirent_wcstombs_s( + size_t *pReturnValue, + char *mbstr, + size_t sizeInBytes, /* max size of mbstr */ + const wchar_t *wcstr, + size_t count) + { + int n; + int error; + UINT cp; + size_t len; + BOOL flag = 0; + LPBOOL pflag; + + /* Determine code page for multi-byte string */ + if (AreFileApisANSI()) { + /* Default ANSI code page */ + cp = GetACP(); + } + else { + /* Default OEM code page */ + cp = GetOEMCP(); + } + + /* Compute the length of input string without zero-terminator */ + len = 0; + while (wcstr[len] != '\0' && len < count) { + len++; + } + + /* + * Determine if we can ask WideCharToMultiByte to return information on + * broken characters. For more information, please see + * https://docs.microsoft.com/en-us/windows/desktop/api/stringapiset/nf-stringapiset-widechartomultibyte + */ + switch (cp) { + case CP_UTF7: + case CP_UTF8: + /* + * WideCharToMultiByte fails if we request information on default + * characters. This is just a nuisance but doesn't affect the + * conversion: if Windows is configured to use UTF-8, then the default + * character should not be needed anyway. + */ + pflag = NULL; + break; + + default: + /* + * Request that WideCharToMultiByte sets the flag if it uses the + * default character. + */ + pflag = &flag; + } + + /* Convert wide-character string to multi-byte character string */ + n = WideCharToMultiByte( + /* Target code page */ cp, + /* Flags */ 0, + /* Pointer to unicode string */ wcstr, + /* Length of unicode string */ (int)len, + /* Pointer to output buffer */ mbstr, + /* Size of output buffer */ sizeInBytes - 1, + /* Default character */ NULL, + /* Whether default character was used or not */ pflag + ); + + /* Ensure that output buffer is zero-terminated */ + mbstr[n] = '\0'; + + /* Return length of multi-byte string with zero-terminator */ + *pReturnValue = (size_t)(n + 1); + + /* Return zero if conversion succeeded without using default characters */ + if (n > 0 && flag == 0) { + error = 0; + } + else { + error = 1; + } + return error; + } + + /* Set errno variable */ + static void + dirent_set_errno( + int error) + { +#if defined(_MSC_VER) && _MSC_VER >= 1400 + + /* Microsoft Visual Studio 2005 and later */ + _set_errno(error); + +#else + + /* Non-Microsoft compiler or older Microsoft compiler */ + errno = error; + +#endif + } + + +#ifdef __cplusplus +} +#endif +#endif /*DIRENT_H*/#pragma once -- cgit v1.2.3