contrib/sendmail-8.14/libsm/flags.c

   1 /*
   2  * Copyright (c) 2000-2001, 2004, 2006 Sendmail, Inc. and its suppliers.
   3  *      All rights reserved.
   4  * Copyright (c) 1990, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * Chris Torek.
   9  *
  10  * By using this file, you agree to the terms and conditions set
  11  * forth in the LICENSE file which can be found at the top level of
  12  * the sendmail distribution.
  13  */
  14
  15 #include <sm/gen.h>
  16 SM_RCSID("@(#)$Id: flags.c,v 1.23 2006/12/19 19:44:23 ca Exp $")
  17 #include <sys/types.h>
  18 #include <sys/file.h>
  19 #include <errno.h>
  20 #include <sm/io.h>
  21 #include "local.h"
  22
  23 /*
  24 **  SM_FLAGS -- translate external (user) flags into internal flags
  25 **
  26 **      Paramters:
  27 **              flags -- user select flags
  28 **
  29 **      Returns:
  30 **              Internal flag value matching user selected flags
  31 */
  32
  33 int
  34 sm_flags(flags)
  35         int flags;
  36 {
  37         int ret;
  38
  39         switch(SM_IO_MODE(flags))
  40         {
  41           case SM_IO_RDONLY:    /* open for reading */
  42                 ret = SMRD;
  43                 break;
  44
  45           case SM_IO_WRONLY:    /* open for writing */
  46                 ret = SMWR;
  47                 break;
  48
  49           case SM_IO_APPEND:    /* open for appending */
  50                 ret = SMWR;
  51                 break;
  52
  53           case SM_IO_RDWR:      /* open for read and write */
  54                 ret = SMRW;
  55                 break;
  56
  57           default:
  58                 ret = 0;
  59                 break;
  60         }
  61         if (SM_IS_BINARY(flags))
  62                 ret |= SM_IO_BINARY;
  63         return ret;
  64 }