
#define O_RDONLY		0x0000	/* open for read only */
#define O_WRONLY		0x0001	/* open for write only */
#define O_RDWR		0x0002	/* open for read and write */
#define O_APPEND		0x0010	/* writes done at end of file */
#define O_CREAT 		0x0020	/* create new file */
#define O_TRUNC 		0x0040	/* truncate existing file */
#define O_NOINHERIT	0x0080	/* file is not inherited by child process */
#define O_TEXT		0x0100	/* text file */
#define O_BINARY		0x0200	/* binary file */
#define O_EXCL		0x0400	/* exclusive open */

