#include "readsubdir.h"

#include "fmt.h"

#include "scan.h"

#include "str.h"

#include "auto_split.h"

void readsubdir_init(rs,name,pause)

readsubdir *rs;

char *name;

void (*pause)();

{

 rs->name = name;

 rs->pause = pause;

 rs->dir = 0;

 rs->pos = 0;

}

static char namepos[FMT_ULONG + 4 + READSUBDIR_NAMELEN];

int readsubdir_next(rs,id)

readsubdir *rs;

unsigned long *id;

{

 direntry *d;

 unsigned int len;

 if (!rs->dir)

  {

   if (rs->pos >= auto_split) return 0;

   if (str_len(rs->name) > READSUBDIR_NAMELEN) { rs->pos++; return -1; }

   len = 0;

   len += fmt_str(namepos + len,rs->name);

   namepos[len++] = '/';

   len += fmt_ulong(namepos + len,(unsigned long) rs->pos);

   namepos[len] = 0;

   while (!(rs->dir = opendir(namepos))) rs->pause(namepos);

   rs->pos++;

   return -1;

  }

 d = readdir(rs->dir);

 if (!d) { closedir(rs->dir); rs->dir = 0; return -1; }

 if (str_equal(d->d_name,".")) return -1;

 if (str_equal(d->d_name,"..")) return -1;

 len = scan_ulong(d->d_name,id);

 if (!len || d->d_name[len]) return -2;

 return 1;

}