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106 lines
2.1 KiB
C
106 lines
2.1 KiB
C
/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 1997, 1998, 1999, 2000
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* Sleepycat Software. All rights reserved.
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*/
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#include "db_config.h"
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#ifndef lint
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static const char revid[] = "$Id: os_oflags.c,v 11.6 2000/10/27 20:32:02 dda Exp $";
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#endif /* not lint */
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#ifndef NO_SYSTEM_INCLUDES
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#endif
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#include "db_int.h"
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/*
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* __db_oflags --
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* Convert open(2) flags to DB flags.
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*
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* PUBLIC: u_int32_t __db_oflags __P((int));
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*/
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u_int32_t
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__db_oflags(oflags)
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int oflags;
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{
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u_int32_t dbflags;
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dbflags = 0;
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if (oflags & O_CREAT)
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dbflags |= DB_CREATE;
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if (oflags & O_TRUNC)
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dbflags |= DB_TRUNCATE;
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/*
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* !!!
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* Convert POSIX 1003.1 open(2) mode flags to DB flags. This isn't
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* an exact science as few POSIX implementations have a flag value
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* for O_RDONLY, it's simply the lack of a write flag.
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*/
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#ifndef O_ACCMODE
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#define O_ACCMODE (O_RDONLY | O_RDWR | O_WRONLY)
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#endif
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switch (oflags & O_ACCMODE) {
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case O_RDWR:
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case O_WRONLY:
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break;
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default:
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dbflags |= DB_RDONLY;
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break;
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}
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return (dbflags);
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}
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/*
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* __db_omode --
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* Convert a permission string to the correct open(2) flags.
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*
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* PUBLIC: int __db_omode __P((const char *));
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*/
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int
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__db_omode(perm)
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const char *perm;
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{
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int mode;
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#ifndef S_IRUSR
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#ifdef DB_WIN32
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#define S_IRUSR S_IREAD /* R for owner */
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#define S_IWUSR S_IWRITE /* W for owner */
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#define S_IRGRP 0 /* R for group */
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#define S_IWGRP 0 /* W for group */
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#define S_IROTH 0 /* R for other */
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#define S_IWOTH 0 /* W for other */
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#else
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#define S_IRUSR 0000400 /* R for owner */
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#define S_IWUSR 0000200 /* W for owner */
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#define S_IRGRP 0000040 /* R for group */
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#define S_IWGRP 0000020 /* W for group */
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#define S_IROTH 0000004 /* R for other */
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#define S_IWOTH 0000002 /* W for other */
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#endif /* DB_WIN32 */
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#endif
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mode = 0;
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if (perm[0] == 'r')
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mode |= S_IRUSR;
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if (perm[1] == 'w')
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mode |= S_IWUSR;
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if (perm[2] == 'r')
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mode |= S_IRGRP;
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if (perm[3] == 'w')
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mode |= S_IWGRP;
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if (perm[4] == 'r')
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mode |= S_IROTH;
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if (perm[5] == 'w')
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mode |= S_IWOTH;
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return (mode);
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}
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