FCNTL.H

/* 
 * fcntl.h 
 *  
 * defines file control options used by the open system call. 
 * 
 * Copyright (C) Microsoft Corporation, 1993-1996 
 */ 
 
#define O_RDONLY        0x0000 
#define O_WRONLY        0x0001 
#define O_RDWR          0x0002 
#define O_APPEND        0x0008  /* writes done at eof */ 
 
#define O_CREAT         0x0100  /* create and open file */ 
#define O_TRUNC         0x0200  /* open with truncation */ 
#define O_EXCL          0x0400  /* exclusive open */ 
 
/* O_TEXT files have <cr><lf> sequences translated to <lf> on read()'s, 
** and <lf> sequences translated to <cr><lf> on write()'s 
*/ 
 
#define O_TEXT          0x4000  /* file mode is text (translated) */ 
#define O_BINARY        0x8000  /* file mode is binary (untranslated) */