PAL.C.T MINI SHELL
#include <malloc.h>
#include <string.h>
#include <errno.h>
#include "php.h"
#include "readdir.h"
#include "win32/ioutil.h"
/**********************************************************************
* Implement dirent-style opendir/readdir/rewinddir/closedir on Win32
*
* Functions defined are opendir(), readdir(), rewinddir() and
* closedir() with the same prototypes as the normal dirent.h
* implementation.
*
* Does not implement telldir(), seekdir(), or scandir(). The dirent
* struct is compatible with Unix, except that d_ino is always 1 and
* d_off is made up as we go along.
*
* The DIR typedef is not compatible with Unix.
**********************************************************************/
#ifdef __cplusplus
extern "C" {
#endif
/* typedef DIR - not the same as Unix */
struct DIR_W32 {
HANDLE handle; /* _findfirst/_findnext handle */
int offset; /* offset into directory */
short finished; /* 1 if there are not more files */
WIN32_FIND_DATAW fileinfo; /* from _findfirst/_findnext */
wchar_t *dirw; /* the dir we are reading */
struct dirent dent; /* the dirent to return */
};
DIR *opendir(const char *dir)
{
DIR *dp;
wchar_t *filespecw, *resolvedw;
HANDLE handle;
int index;
char resolved_path_buff[MAXPATHLEN];
size_t resolvedw_len, filespecw_len;
if (!VCWD_REALPATH(dir, resolved_path_buff)) {
return NULL;
}
dp = (DIR *) malloc(sizeof(DIR));
if (dp == NULL) {
return NULL;
}
resolvedw = php_win32_ioutil_conv_any_to_w(resolved_path_buff, PHP_WIN32_CP_IGNORE_LEN, &resolvedw_len);
if (!resolvedw) {
free(dp);
return NULL;
}
filespecw_len = resolvedw_len + 2;
filespecw = (wchar_t *)malloc((filespecw_len + 1)*sizeof(wchar_t));
if (filespecw == NULL) {
free(dp);
free(resolvedw);
return NULL;
}
wcscpy(filespecw, resolvedw);
index = (int)filespecw_len - 1;
if (index >= 0 && filespecw[index] == L'/' || index == 0 && filespecw[index] == L'\\')
filespecw[index] = L'\0';
wcscat(filespecw, L"\\*");
if ((handle = FindFirstFileW(filespecw, &(dp->fileinfo))) == INVALID_HANDLE_VALUE) {
DWORD err = GetLastError();
if (err == ERROR_NO_MORE_FILES || err == ERROR_FILE_NOT_FOUND) {
dp->finished = 1;
} else {
free(dp);
free(filespecw);
free(resolvedw);
return NULL;
}
}
dp->dirw = _wcsdup(resolvedw);
dp->handle = handle;
dp->offset = 0;
dp->finished = 0;
free(filespecw);
free(resolvedw);
return dp;
}
struct dirent *readdir(DIR *dp)
{
char *_tmp;
if (!dp || dp->finished)
return NULL;
if (dp->offset != 0) {
if (FindNextFileW(dp->handle, &(dp->fileinfo)) == 0) {
dp->finished = 1;
return NULL;
}
}
_tmp = php_win32_ioutil_w_to_any(dp->fileinfo.cFileName);
if (!_tmp) {
/* wide to utf8 failed, should never happen. */
return NULL;
}
strlcpy(dp->dent.d_name, _tmp, _MAX_FNAME+1);
dp->dent.d_reclen = (unsigned short)strlen(dp->dent.d_name);
free(_tmp);
dp->offset++;
dp->dent.d_ino = 1;
dp->dent.d_off = dp->offset;
return &(dp->dent);
}
int readdir_r(DIR *dp, struct dirent *entry, struct dirent **result)
{
char *_tmp;
if (!dp || dp->finished) {
*result = NULL;
return 0;
}
if (dp->offset != 0) {
if (FindNextFileW(dp->handle, &(dp->fileinfo)) == 0) {
dp->finished = 1;
*result = NULL;
return 0;
}
}
_tmp = php_win32_ioutil_w_to_any(dp->fileinfo.cFileName);
if (!_tmp) {
/* wide to utf8 failed, should never happen. */
result = NULL;
return 0;
}
strlcpy(dp->dent.d_name, _tmp, _MAX_FNAME+1);
dp->dent.d_reclen = (unsigned short)strlen(dp->dent.d_name);
free(_tmp);
dp->offset++;
dp->dent.d_ino = 1;
dp->dent.d_off = dp->offset;
memcpy(entry, &dp->dent, sizeof(*entry));
*result = &dp->dent;
return 0;
}
int closedir(DIR *dp)
{
if (!dp)
return 0;
/* It is valid to scan an empty directory but we have an invalid
handle in this case (no first file found). */
if (dp->handle != INVALID_HANDLE_VALUE) {
FindClose(dp->handle);
}
if (dp->dirw)
free(dp->dirw);
if (dp)
free(dp);
return 0;
}
int rewinddir(DIR *dp)
{
/* Re-set to the beginning */
wchar_t *filespecw;
HANDLE handle;
int index;
FindClose(dp->handle);
dp->offset = 0;
dp->finished = 0;
filespecw = (wchar_t *)malloc((wcslen((wchar_t *)dp->dirw) + 2 + 1)*sizeof(wchar_t));
if (filespecw == NULL) {
return -1;
}
wcscpy(filespecw, (wchar_t *)dp->dirw);
index = (int)wcslen(filespecw) - 1;
if (index >= 0 && (filespecw[index] == L'/' ||
(filespecw[index] == L'\\' && index == 0)))
filespecw[index] = L'\0';
wcscat(filespecw, L"/*");
if ((handle = FindFirstFileW(filespecw, &(dp->fileinfo))) == INVALID_HANDLE_VALUE) {
dp->finished = 1;
}
free(filespecw);
dp->handle = handle;
return 0;
}
#ifdef __cplusplus
}
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
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