Copy a few files from LPlib (a new project of mine), add a wrapper.

/* $LP: LPlib/source/LPdir_win.c,v 1.1 2004/06/14 10:07:56 _cvs_levitte Exp $ */

/*

 * Copyright (c) 2004, Richard Levitte <richard@levitte.org>

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 */

#ifndef LPDIR_H

#include "LPdir.h"

#endif

struct LP_dir_context_st { void *dummy; };

const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory)

	{

	errno = EINVAL;

	return 0;

	}

int LP_find_file_end(LP_DIR_CTX **ctx)

	{

	errno = EINVAL;

	return 0;

	}

/* $LP: LPlib/source/LPdir_unix.c,v 1.6 2004/06/14 10:08:43 _cvs_levitte Exp $ */

/*

 * Copyright (c) 2004, Richard Levitte <richard@levitte.org>

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 */

#include <stddef.h>

#include <stdlib.h>

#include <string.h>

#include <sys/types.h>

#include <dirent.h>

#include <errno.h>

#ifndef LPDIR_H

#include "LPdir.h"

#endif

struct LP_dir_context_st

{

  DIR *dir;

  char entry_name[NAME_MAX+1];

};

const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory)

{

  struct dirent *direntry = NULL;

  if (ctx == NULL || directory == NULL)

    {

      errno = EINVAL;

      return 0;

    }

  errno = 0;

  if (*ctx == NULL)

    {

      *ctx = (LP_DIR_CTX *)malloc(sizeof(LP_DIR_CTX));

      if (*ctx == NULL)

	{

	  errno = ENOMEM;

	  return 0;

	}

      memset(*ctx, '\0', sizeof(LP_DIR_CTX));

      (*ctx)->dir = opendir(directory);

      if ((*ctx)->dir == NULL)

	{

	  int save_errno = errno; /* Probably not needed, but I'm paranoid */

	  free(*ctx);

	  *ctx = NULL;

	  errno = save_errno;

	  return 0;

	}

    }

  direntry = readdir((*ctx)->dir);

  if (direntry == NULL)

    {

      return 0;

    }

  strncpy((*ctx)->entry_name, direntry->d_name, sizeof((*ctx)->entry_name));

  return (*ctx)->entry_name;

}

int LP_find_file_end(LP_DIR_CTX **ctx)

{

  if (ctx != NULL && *ctx != NULL)

    {

      int ret = closedir((*ctx)->dir);

      free(*ctx);

      switch (ret)

	{

	case 0:

	  return 1;

	case -1:

	  return 0;

	default:

	  break;

	}

    }

  errno = EINVAL;

  return 0;

}

/* $LP: LPlib/source/LPdir_vms.c,v 1.17 2004/06/30 11:36:43 _cvs_levitte Exp $ */

/*

 * Copyright (c) 2004, Richard Levitte <richard@levitte.org>

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 */

#include <stddef.h>

#include <stdlib.h>

#include <string.h>

#include <errno.h>

#include <descrip.h>

#include <namdef.h>

#include <rmsdef.h>

#include <libfildef.h>

#include <lib$routines.h>

#include <strdef.h>

#include <str$routines.h>

#include <stsdef.h>

#ifndef LPDIR_H

#include "LPdir.h"

#endif

struct LP_dir_context_st

{

  unsigned long VMS_context;

#ifdef NAML$C_MAXRSS

  char filespec[NAML$C_MAXRSS+1];

  char result[NAML$C_MAXRSS+1];

#else

  char filespec[256];

  char result[256];

#endif

  struct dsc$descriptor_d filespec_dsc;

  struct dsc$descriptor_d result_dsc;

};

const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory)

{

  int status;

  char *p, *r;

  size_t l;

  const unsigned long flags = 0;

#ifdef NAML$C_MAXRSS

  flags |= LIB$M_FIL_LONG_NAMES;

#endif

  if (ctx == NULL || directory == NULL)

    {

      errno = EINVAL;

      return 0;

    }

  errno = 0;

  if (*ctx == NULL)

    {

      size_t filespeclen = strlen(directory);

      char *filespec = NULL;

      /* MUST be a VMS directory specification!  Let's estimate if it is. */

      if (directory[filespeclen-1] != ']'

	  && directory[filespeclen-1] != '>'

	  && directory[filespeclen-1] != ':')

	{

	  errno = EINVAL;

	  return 0;

	}

      filespeclen += 4;		/* "*.*;" */

      if (filespeclen >

#ifdef NAML$C_MAXRSS

	  NAML$C_MAXRSS

#else

	  255

#endif

	  )

	{

	  errno = ENAMETOOLONG;

	  return 0;

	}

      *ctx = (LP_DIR_CTX *)malloc(sizeof(LP_DIR_CTX));

      if (*ctx == NULL)

	{

	  errno = ENOMEM;

	  return 0;

	}

      memset(*ctx, '\0', sizeof(LP_DIR_CTX));

      strcpy((*ctx)->filespec,directory);

      strcat((*ctx)->filespec,"*.*;");

      (*ctx)->filespec_dsc.dsc$w_length = filespeclen;

      (*ctx)->filespec_dsc.dsc$b_dtype = DSC$K_DTYPE_T;

      (*ctx)->filespec_dsc.dsc$b_class = DSC$K_CLASS_S;

      (*ctx)->filespec_dsc.dsc$a_pointer = (*ctx)->filespec;

      (*ctx)->result_dsc.dsc$w_length = 0;

      (*ctx)->result_dsc.dsc$b_dtype = DSC$K_DTYPE_T;

      (*ctx)->result_dsc.dsc$b_class = DSC$K_CLASS_D;

      (*ctx)->result_dsc.dsc$a_pointer = 0;

    }

  (*ctx)->result_dsc.dsc$w_length = 0;

  (*ctx)->result_dsc.dsc$b_dtype = DSC$K_DTYPE_T;

  (*ctx)->result_dsc.dsc$b_class = DSC$K_CLASS_D;

  (*ctx)->result_dsc.dsc$a_pointer = 0;

  status = lib$find_file(&(*ctx)->filespec_dsc, &(*ctx)->result_dsc,

			 &(*ctx)->VMS_context, 0, 0, 0, &flags);

  if (status == RMS$_NMF)

    {

      errno = 0;

      vaxc$errno = status;

      return NULL;

    }

  if(!$VMS_STATUS_SUCCESS(status))

    {

      errno = EVMSERR;

      vaxc$errno = status;

      return NULL;

    }

  /* Quick, cheap and dirty way to discard any device and directory,

     since we only want file names */

  l = (*ctx)->result_dsc.dsc$w_length;

  p = (*ctx)->result_dsc.dsc$a_pointer;

  r = p;

  for (; *p; p++)

    {

      if (*p == '^' && p[1] != '\0') /* Take care of ODS-5 escapes */

	{

	  p++;

	}

      else if (*p == ':' || *p == '>' || *p == ']')

	{

	  l -= p + 1 - r;

	  r = p + 1;

	}

      else if (*p == ';')

	{

	  l = p - r;

	  break;

	}

    }

  strncpy((*ctx)->result, r, l);

  (*ctx)->result[l] = '\0';

  str$free1_dx(&(*ctx)->result_dsc);

  return (*ctx)->result;

}

int LP_find_file_end(LP_DIR_CTX **ctx)

{

  if (ctx != NULL && *ctx != NULL)

    {

      int status = lib$find_file_end(&(*ctx)->VMS_context);

      free(*ctx);

      if(!$VMS_STATUS_SUCCESS(status))

	{

	  errno = EVMSERR;

	  vaxc$errno = status;

	  return 0;

	}

      return 1;

    }

  errno = EINVAL;

  return 0;

}

/* $LP: LPlib/source/LPdir_win.c,v 1.1 2004/06/14 10:07:56 _cvs_levitte Exp $ */

/*

 * Copyright (c) 2004, Richard Levitte <richard@levitte.org>

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 */

#include <windows.h>

#ifndef LPDIR_H

#include "LPdir.h"

#endif

struct LP_dir_context_st

{

  WIN32_FIND_DATA ctx;

  HANDLE handle;

  char entry_name[NAME_MAX+1];

};

const char *LP_find_file(LP_DIR_CTX **ctx, const char *directory)

{

  struct dirent *direntry = NULL;

  if (ctx == NULL || directory == NULL)

    {

      errno = EINVAL;

      return 0;

    }

  errno = 0;

  if (*ctx == NULL)

    {

      *ctx = (LP_DIR_CTX *)malloc(sizeof(LP_DIR_CTX));

      if (*ctx == NULL)

	{

	  errno = ENOMEM;

	  free(*ctx);

	  return 0;

	}

      memset(*ctx, '\0', sizeof(LP_DIR_CTX));

#ifdef LP_SYS_WINCE

      {

	WCHAR *wdir = NULL;

	size_t index = 0;

	wdir = (WCHAR *)malloc((strlen(directory) + 1) * 2);

	if (wdir == NULL)

	  {

	    errno = ENOMEM;

	    free(*ctx);

	    free(wdir);

	    return 0;

	  }

	for (index = 0; index < strlen(directory) + 1; index++)

	  wdir[index] = (short)directory[index];

	(*ctx)->handle = FindFirstFile(wdir, &(*ctx)->ctx);

	free(wdir);

      }

#else

      (*ctx)->handle = FindFirstFile(directory, &(*ctx)->ctx);

#endif

      if ((*ctx)->handle == INVALID_HANDLE_VALUE)

	{

	  free(*ctx);

	  *ctx = NULL;

	  errno = EINVAL;

	  return 0;

	}

    }

  else

    {

      if (FindNextFile((*ctx)->handle, (*ctx)->ctx) == FALSE)

	{

	  return 0;

	}

    }

  strncpy((*ctx)->entry_name, (*ctx)->ctx.cFileName,

	  sizeof((*ctx)->entry_name));

  return (*ctx)->entry_name;

}

int LP_find_file_end(LP_DIR_CTX **ctx)

{

  if (ctx != NULL && *ctx != NULL)

    {

      FindClose((*ctx)->handle);

      free(*ctx);

      return 1;

    }

  errno = EINVAL;

  return 0;

}

/* $LP: LPlib/source/LPdir_win32.c,v 1.1 2004/06/14 10:07:56 _cvs_levitte Exp $ */

/*

 * Copyright (c) 2004, Richard Levitte <richard@levitte.org>

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 */

#define LP_SYS_WIN32

#include "LPdir_win.c"