/**************************************************************************
*  Original Diku Mud copyright (C) 1990, 1991 by Sebastian Hammer,        *
*  Michael Seifert, Hans Henrik St{rfeldt, Tom Madsen, and Katja Nyboe.   *
*                                                                         *
*  Merc Diku Mud improvements copyright (C) 1992, 1993 by Michael         *
*  Chastain, Michael Quan, and Mitchell Tse.                              *
*                                                                         *
*  In order to use any part of this Merc Diku Mud, you must comply with   *
*  both the original Diku license in 'license.doc' as well the Merc       *
*  license in 'license.txt'.  In particular, you may not remove either of *
*  these copyright notices.                                               *
*                                                                         *
*  Much time and thought has gone into this software and you are          *
*  benefiting.  We hope that you share your changes too.  What goes       *
*  around, comes around.                                                  *
***************************************************************************
*       ROM 2.4 is copyright 1993-1998 Russ Taylor                        *
*       ROM has been brought to you by the ROM consortium                 *
*           Russ Taylor (rtaylor@hypercube.org)                           *
*           Gabrielle Taylor (gtaylor@hypercube.org)                      *
*           Brian Moore (zump@rom.org)                                    *
*       By using this code, you have agreed to follow the terms of the    *
*       ROM license, in the file Rom24/doc/rom.license                    *
***************************************************************************
*       1stMUD ROM Derivative (c) 2001-2003 by Ryan Jennings              *
*            http://1stmud.dlmud.com/  <r-jenn@shaw.ca>                   *
***************************************************************************/
#if defined (WIN32)

#include "winstuff.h"

int strcasecmp (const char *s1, const char *s2)
{
    register const u_char *us1 = (const u_char *) s1, *us2 =
	(const u_char *) s2;

    while (tolower (*us1) == tolower (*us2++))
	if (*us1++ == '\0')
	    return (0);
    return (tolower (*us1) - tolower (*--us2));
}

int strncasecmp (const char *s1, const char *s2, register size_t n)
{
    if (n != 0)
    {
	register const u_char *us1 = (const u_char *) s1, *us2 =
	    (const u_char *) s2;

	do
	{
	    if (tolower (*us1) != tolower (*us2++))
		return (tolower (*us1) - tolower (*--us2));
	    if (*us1++ == '\0')
		break;
	}
	while (--n != 0);
    }
    return (0);
}

int scandir(const char *dirname, struct dirent ***namelist,
    int (*select)(struct dirent *),
    int (*compar)(struct dirent **, struct dirent **)) {
  int len;
  char *findIn, *d;
  WIN32_FIND_DATA find;
  HANDLE h;
  int nDir = 0, NDir = 0;
  struct dirent **dir = 0, *selectDir;
  unsigned long ret;

  len    = strlen(dirname);
  findIn = malloc(len+5);
  strcpy(findIn, dirname);
  for (d = findIn; *d; d++) if (*d=='/') *d='\\';
  if ((len==0)) { strcpy(findIn, ".\\*"); }
  if ((len==1)&& (d[-1]=='.')) { strcpy(findIn, ".\\*"); }
  if ((len>0) && (d[-1]=='\\')) { *d++ = '*'; *d = 0; }
  if ((len>1) && (d[-1]=='.') && (d[-2]=='\\')) { d[-1] = '*'; }
  
  if ((h=FindFirstFile(findIn, &find))==INVALID_HANDLE_VALUE) {
    ret = GetLastError();
    if (ret != ERROR_NO_MORE_FILES) {
      // TODO: return some error code
    }
    *namelist = dir;
    return nDir;
  }
  do {
    selectDir=(struct dirent*)malloc(sizeof(struct dirent)+strlen(find.cFileName));
    strcpy(selectDir->d_name, find.cFileName);
    if (!select || (*select)(selectDir)) {
      if (nDir==NDir) {
	struct dirent **tempDir = calloc(sizeof(struct dirent*), NDir+33);
	if (NDir) memcpy(tempDir, dir, sizeof(struct dirent*)*NDir);
	if (dir) free(dir);
	dir = tempDir;
	NDir += 32;
      }
      dir[nDir] = selectDir;
      nDir++;
      dir[nDir] = 0;
    } else {
      free(selectDir);
    }
  } while (FindNextFile(h, &find));
  ret = GetLastError();
  if (ret != ERROR_NO_MORE_FILES) {
    // TODO: return some error code
  }
  FindClose(h);

  free (findIn);

  if (compar) qsort (dir, nDir, sizeof(*dir),
		     (int(*)(const void*, const void*))compar);

  *namelist = dir;
  return nDir;
}

int alphasort (struct dirent **a, struct dirent **b) {
  return strcmp ((*a)->d_name, (*b)->d_name);
}

#endif /* WIN32 */