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#include <malloc.h>
#include <string.h>
#include <errno.h>
#include "readdir.h"
#include "php.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;
long handle;
int index;
filespec = malloc(strlen(dir) + 2 + 1);
strcpy(filespec, dir);
index = strlen(filespec) - 1;
if (index >= 0 && (filespec[index] == '/' ||
(filespec[index] == '\\' && !IsDBCSLeadByte(filespec[index-1]))))
filespec[index] = '\0';
strcat(filespec, "/*");
dp = (DIR *) malloc(sizeof(DIR));
dp->offset = 0;
dp->finished = 0;
dp->dir = strdup(dir);
if ((handle = _findfirst(filespec, &(dp->fileinfo))) < 0) {
if (errno == ENOENT)
dp->finished = 1;
else
return NULL;
}
dp->handle = handle;
free(filespec);
return dp;
}
struct dirent *readdir(DIR *dp)
{
if (!dp || dp->finished)
return NULL;
if (dp->offset != 0) {
if (_findnext(dp->handle, &(dp->fileinfo)) < 0) {
dp->finished = 1;
return NULL;
}
}
dp->offset++;
strlcpy(dp->dent.d_name, dp->fileinfo.name, _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 (_findnext(dp->handle, &(dp->fileinfo)) < 0) {
dp->finished = 1;
*result = NULL;
return 0;
}
}
dp->offset++;
strlcpy(dp->dent.d_name, dp->fileinfo.name, _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;
_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;
long handle;
int index;
_findclose(dp->handle);
dp->offset = 0;
dp->finished = 0;
filespec = malloc(strlen(dp->dir) + 2 + 1);
strcpy(filespec, dp->dir);
index = strlen(filespec) - 1;
if (index >= 0 && (filespec[index] == '/' || filespec[index] == '\\'))
filespec[index] = '\0';
strcat(filespec, "/*");
if ((handle = _findfirst(filespec, &(dp->fileinfo))) < 0) {
if (errno == ENOENT)
dp->finished = 1;
}
dp->handle = handle;
free(filespec);
return 0;
}
int alphasort(const struct dirent **a, const struct dirent **b)
{
return strcoll((*a)->d_name,(*b)->d_name);
}
int scandir(const char *dirname,
struct dirent **namelist[],
int (*selector) (const struct dirent *entry),
int (*compare) (const struct dirent **a, const struct dirent **b))
{
DIR *dirp = NULL;
struct dirent **vector = NULL;
struct dirent *dp = NULL;
int vector_size = 0;
int nfiles = 0;
int fail = 0;
if (namelist == NULL)
return -1;
dirp = opendir(dirname);
if (dirp == NULL)
return -1;
for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp))
{
int dsize = 0;
struct dirent *newdp = NULL;
if (selector && (*selector)(dp) == 0)
continue;
if (nfiles == vector_size)
{
struct dirent **newv;
if (vector_size == 0)
vector_size = 10;
else
vector_size *= 2;
newv = (struct dirent **) realloc (vector, vector_size * sizeof (struct dirent *));
if (newv == NULL)
{
fail = 1;
break;
}
vector = newv;
}
dsize = sizeof (struct dirent) + ((strlen(dp->d_name) + 1) * sizeof(char));
newdp = (struct dirent *) malloc(dsize);
if (newdp == NULL)
{
fail = 1;
break;
}
vector[nfiles++] = (struct dirent *) memcpy(newdp, dp, dsize);
}
closedir(dirp);
if (fail)
{
while (nfiles-- > 0) free(vector[nfiles]);
free(vector);
return -1;
}
*namelist = vector;
if (compare)
qsort (*namelist,nfiles,sizeof (struct dirent *),compare);
return nfiles;
}
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