1 /* fcntl.h 4.3 85/05/22 */ 2 3 /* 4 * Flag values accessible to open(2) and fcntl(2) 5 * (The first three can only be set by open) 6 */ 7 #define O_RDONLY 0 8 #define O_WRONLY 1 9 #define O_RDWR 2 10 #define O_NDELAY FNDELAY /* Non-blocking I/O */ 11 #define O_APPEND FAPPEND /* append (writes guaranteed at the end) */ 12 #define O_CREAT FCREAT /* open with file create */ 13 #define O_TRUNC FTRUNC /* open with truncation */ 14 #define O_EXCL FEXCL /* error on create if file exists */ 15 16 #ifndef F_DUPFD 17 /* fcntl(2) requests */ 18 #define F_DUPFD 0 /* Duplicate fildes */ 19 #define F_GETFD 1 /* Get fildes flags */ 20 #define F_SETFD 2 /* Set fildes flags */ 21 #define F_GETFL 3 /* Get file flags */ 22 #define F_SETFL 4 /* Set file flags */ 23 #define F_GETOWN 5 /* Get owner */ 24 #define F_SETOWN 6 /* Set owner */ 25 26 /* flags for F_GETFL, F_SETFL-- copied from <sys/file.h> */ 27 #define FNDELAY 00004 /* non-blocking reads */ 28 #define FAPPEND 00010 /* append on each write */ 29 #define FASYNC 00100 /* signal pgrp when data ready */ 30 #define FCREAT 01000 /* create if nonexistant */ 31 #define FTRUNC 02000 /* truncate to zero length */ 32 #define FEXCL 04000 /* error if already created */ 33 #endif 34