- /*-
- * 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);
- }