source: tags/bs/gsinstaller/dirent.cpp@ 13782

#include <string.h>
#include <windows.h>

#include "dirent.h"

void _getFileName(DIRSTR *dirlist, WIN32_FIND_DATA *winFileData)
{ // get leaf if directory name is given
    char *leafname = strrchr(winFileData->cFileName, '\\');

    if (leafname)
  { leafname ++;
  }
  else
  { leafname = winFileData->cFileName;
  }
    strcpy(dirlist->fileData.d_name, leafname);
}

DIRSTR *opendir(const char *name)
{ char buffer[MAX_PATH];
  WIN32_FIND_DATA winFileData;

    DIRSTR *newlist = (DIRSTR *) malloc(sizeof(DIRSTR));

  strcpy(buffer, name);
  if (buffer[strlen(buffer)-1] != '\\')
  { strcat(buffer, "\\*");
  }
  else
  { strcat(buffer, "*");
  }

  newlist->searchHandle = FindFirstFile(buffer, &winFileData);
  if (newlist->searchHandle == INVALID_HANDLE_VALUE)
  { DWORD error = GetLastError();
    if (error == ERROR_NO_MORE_FILES)
    { newlist->first = 2;
    }
    else
    {   free(newlist);
      newlist = NULL;
    }
  }
  else
  { _getFileName(newlist, &winFileData);
    newlist->first = 1;
  }
  return newlist;
}

dirent *readdir(DIRSTR *dirlist)
{ if (dirlist->first == 2)
    { // empty directory
    return NULL;
  }
    else if (dirlist->first != 1)
    { WIN32_FIND_DATA winFileData;

    if (FindNextFile(dirlist->searchHandle, &winFileData) == 0)
    { DWORD error = GetLastError();

        return NULL;
    }
    else
    { _getFileName(dirlist, &winFileData);
    }
  }
  else
  { dirlist->first = 0;
  }

  return &dirlist->fileData;
}

void closedir(DIRSTR *dirlist)
{ free(dirlist);
}