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tag: php-5.3.9RC1
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#include <malloc.h>
#include <string.h>
#include <errno.h>

#include "php.h"
#include "readdir.h"
#include "TSRM.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.
**********************************************************************/

DIR *opendir(const char *dir)
{
DIR *dp;
char *filespec;
HANDLE handle;
int index;
char resolved_path_buff[MAXPATHLEN];
TSRMLS_FETCH();

if (!VCWD_REALPATH(dir, resolved_path_buff)) {
return NULL;
}

filespec = (char *)malloc(strlen(resolved_path_buff) + 2 + 1);
if (filespec == NULL) {
return NULL;
}
strcpy(filespec, resolved_path_buff);
index = strlen(filespec) - 1;
if (index >= 0 && (filespec[index] == '/' ||
(filespec[index] == '\\' && (index == 0 || !IsDBCSLeadByte(filespec[index-1])))))
filespec[index] = '\0';
strcat(filespec, "\\*");

dp = (DIR *) malloc(sizeof(DIR));
if (dp == NULL) {
return NULL;
}
dp->offset = 0;
dp->finished = 0;

if ((handle = FindFirstFile(filespec, &(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(filespec);
return NULL;
}
}
dp->dir = strdup(resolved_path_buff);
dp->handle = handle;
free(filespec);

return dp;
}

struct dirent *readdir(DIR *dp)
{
if (!dp || dp->finished)
return NULL;

if (dp->offset != 0) {
if (FindNextFile(dp->handle, &(dp->fileinfo)) == 0) {
dp->finished = 1;
return NULL;
}
}
dp->offset++;

strlcpy(dp->dent.d_name, dp->fileinfo.cFileName, _MAX_FNAME+1);
dp->dent.d_ino = 1;
dp->dent.d_reclen = strlen(dp->dent.d_name);
dp->dent.d_off = dp->offset;

return &(dp->dent);
}

int readdir_r(DIR *dp, struct dirent *entry, struct dirent **result)
{
if (!dp || dp->finished) {
*result = NULL;
return 0;
}

if (dp->offset != 0) {
if (FindNextFile(dp->handle, &(dp->fileinfo)) == 0) {
dp->finished = 1;
*result = NULL;
return 0;
}
}
dp->offset++;

strlcpy(dp->dent.d_name, dp->fileinfo.cFileName, _MAX_FNAME+1);
dp->dent.d_ino = 1;
dp->dent.d_reclen = strlen(dp->dent.d_name);
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->dir)
free(dp->dir);
if (dp)
free(dp);

return 0;
}

int rewinddir(DIR *dp)
{
/* Re-set to the beginning */
char *filespec;
HANDLE handle;
int index;

FindClose(dp->handle);

dp->offset = 0;
dp->finished = 0;

filespec = (char *)malloc(strlen(dp->dir) + 2 + 1);
if (filespec == NULL) {
return -1;
}

strcpy(filespec, dp->dir);
index = strlen(filespec) - 1;
if (index >= 0 && (filespec[index] == '/' ||
(filespec[index] == '\\' && (index == 0 || !IsDBCSLeadByte(filespec[index-1])))))
filespec[index] = '\0';
strcat(filespec, "/*");

if ((handle = FindFirstFile(filespec, &(dp->fileinfo))) == INVALID_HANDLE_VALUE) {
dp->finished = 1;
}

dp->handle = handle;
free(filespec);

return 0;
}
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