sendmail/libsm/flags.c

/*
 * Copyright (c) 2000-2001, 2004, 2006 Sendmail, Inc. and its suppliers.
 *      All rights reserved.
 * Copyright (c) 1990, 1993
 *  The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Chris Torek.
 *
 * By using this file, you agree to the terms and conditions set
 * forth in the LICENSE file which can be found at the top level of
 * the sendmail distribution.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

#include <sm/gen.h>
SM_RCSID("@(#)$Id: flags.c,v 1.23 2006/12/19 19:44:23 ca Exp $")
#include <sys/types.h>
#include <sys/file.h>
#include <errno.h>
#include <sm/io.h>
#include "local.h"

/*
**  SM_FLAGS -- translate external (user) flags into internal flags
**
**  Paramters:
**      flags -- user select flags
**
**  Returns:
**      Internal flag value matching user selected flags
*/

int
sm_flags(flags)
    int flags;
{
    int ret;

    switch(SM_IO_MODE(flags))
    {
      case SM_IO_RDONLY:    /* open for reading */
        ret = SMRD;
        break;

      case SM_IO_WRONLY:    /* open for writing */
        ret = SMWR;
        break;

      case SM_IO_APPEND:    /* open for appending */
        ret = SMWR;
        break;

      case SM_IO_RDWR:  /* open for read and write */
        ret = SMRW;
        break;

      default:
        ret = 0;
        break;
    }
    if (SM_IS_BINARY(flags))
        ret |= SM_IO_BINARY;
    return ret;
}