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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1997-2002
* Sleepycat Software. All rights reserved.
*/
#include "db_config.h"
#ifndef lint
static const char revid[] = "$Id: os_oflags.c,v 11.9 2002/01/11 15:53:00 bostic Exp $";
#endif /* not lint */
#ifndef NO_SYSTEM_INCLUDES
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#endif
#include "db_int.h"
/*
* __db_oflags --
* Convert open(2) flags to DB flags.
*
* PUBLIC: u_int32_t __db_oflags __P((int));
*/
u_int32_t
__db_oflags(oflags)
int oflags;
{
u_int32_t dbflags;
dbflags = 0;
if (oflags & O_CREAT)
dbflags |= DB_CREATE;
if (oflags & O_TRUNC)
dbflags |= DB_TRUNCATE;
/*
* !!!
* Convert POSIX 1003.1 open(2) mode flags to DB flags. This isn't
* an exact science as few POSIX implementations have a flag value
* for O_RDONLY, it's simply the lack of a write flag.
*/
#ifndef O_ACCMODE
#define O_ACCMODE (O_RDONLY | O_RDWR | O_WRONLY)
#endif
switch (oflags & O_ACCMODE) {
case O_RDWR:
case O_WRONLY:
break;
default:
dbflags |= DB_RDONLY;
break;
}
return (dbflags);
}
/*
* __db_omode --
* Convert a permission string to the correct open(2) flags.
*
* PUBLIC: int __db_omode __P((const char *));
*/
int
__db_omode(perm)
const char *perm;
{
int mode;
#ifdef DB_WIN32
#ifndef S_IRUSR
#define S_IRUSR S_IREAD /* R for owner */
#endif
#ifndef S_IWUSR
#define S_IWUSR S_IWRITE /* W for owner */
#endif
#ifndef S_IRGRP
#define S_IRGRP 0 /* R for group */
#endif
#ifndef S_IWGRP
#define S_IWGRP 0 /* W for group */
#endif
#ifndef S_IROTH
#define S_IROTH 0 /* R for other */
#endif
#ifndef S_IWOTH
#define S_IWOTH 0 /* W for other */
#endif
#else
#ifndef S_IRUSR
#define S_IRUSR 0000400 /* R for owner */
#define S_IWUSR 0000200 /* W for owner */
#define S_IRGRP 0000040 /* R for group */
#define S_IWGRP 0000020 /* W for group */
#define S_IROTH 0000004 /* R for other */
#define S_IWOTH 0000002 /* W for other */
#endif
#endif /* DB_WIN32 */
mode = 0;
if (perm[0] == 'r')
mode |= S_IRUSR;
if (perm[1] == 'w')
mode |= S_IWUSR;
if (perm[2] == 'r')
mode |= S_IRGRP;
if (perm[3] == 'w')
mode |= S_IWGRP;
if (perm[4] == 'r')
mode |= S_IROTH;
if (perm[5] == 'w')
mode |= S_IWOTH;
return (mode);
}
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