projects / unix-history / blame
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|---|---|---|
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1 | /*- |
| 2 | * Copyright (c) 1983, 1990 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| bb0cfa24 | 4 | * |
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5 | * %sccs.include.redist.c% |
| 6 | * | |
| 0f9e0ffb | 7 | * @(#)fcntl.h 5.7 (Berkeley) %G% |
| bb0cfa24 | 8 | */ |
| c9d055bc | 9 | |
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10 | #ifndef F_DUPFD |
| 11 | ||
| 12 | /* command values for fcntl(2) */ | |
| 13 | #define F_DUPFD 0 /* duplicate file descriptor */ | |
| 14 | #define F_GETFD 1 /* get file descriptor flags */ | |
| 15 | #define F_SETFD 2 /* set file descriptor flags */ | |
| 16 | #define F_GETFL 3 /* get file status flags */ | |
| 17 | #define F_SETFL 4 /* set file status flags */ | |
| 18 | #ifndef _POSIX_SOURCE | |
| 19 | #define F_GETOWN 5 /* get SIGIO/SIGURG proc/pgrp */ | |
| 20 | #define F_SETOWN 6 /* set SIGIO/SIGURG proc/pgrp */ | |
| 21 | #endif | |
| 22 | #define F_GETLK 7 /* get record locking information */ | |
| 23 | #define F_SETLK 8 /* set record locking information */ | |
| 24 | #define F_SETLKW 9 /* F_SETLK; wait if blocked */ | |
| 25 | ||
| 26 | /* file descriptor flags (F_GETFD, F_SETFD) */ | |
| 27 | #define FD_CLOEXEC 1 /* close-on-exec flag */ | |
| 28 | ||
| 29 | /* record locking flags (F_GETLK, F_SETLK, F_SETLKW) */ | |
| 30 | #define F_RDLCK 1 /* shared or read lock */ | |
| 31 | #define F_UNLCK 2 /* unlock */ | |
| 32 | #define F_WRLCK 3 /* exclusive or write lock */ | |
| 33 | ||
| 34 | #ifndef _POSIX_SOURCE | |
| 35 | /* lock operations for flock(2) */ | |
| 36 | #define LOCK_SH 0x01 /* shared file lock */ | |
| 37 | #define LOCK_EX 0x02 /* exclusive file lock */ | |
| 38 | #define LOCK_NB 0x04 /* don't block when locking */ | |
| 39 | #define LOCK_UN 0x08 /* unlock file */ | |
| ccf9310d | 40 | #endif |
| f7532098 | 41 | |
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42 | /* file status flags */ |
| 43 | #define O_RDONLY 00000 /* open for reading only */ | |
| 44 | #define O_WRONLY 00001 /* open for writing only */ | |
| 45 | #define O_RDWR 00002 /* open for reading and writing */ | |
| 46 | #define O_NONBLOCK 00004 /* no delay */ | |
| 47 | #ifndef _POSIX_SOURCE | |
| 48 | #define O_NDELAY O_NONBLOCK | |
| 49 | #define FNDELAY O_NONBLOCK | |
| 50 | #endif | |
| 51 | /* 00008 /* unused */ | |
| 52 | #define O_APPEND 00010 /* set append mode */ | |
| 53 | #ifndef _POSIX_SOURCE | |
| 54 | #define FAPPEND O_APPEND | |
| 55 | #endif | |
| 56 | /* kernel placeholders */ | |
| 57 | #if !defined(_POSIX_SOURCE) && defined(KERNEL) | |
| 58 | #define O_MARK 00020 /* mark during gc() */ | |
| 59 | #define O_DEFER 00040 /* defer for next gc pass */ | |
| 60 | #endif | |
| 61 | /* 00080 /* unused */ | |
| 62 | #ifndef _POSIX_SOURCE | |
| 63 | #define O_ASYNC 00100 /* signal pgrp when data ready */ | |
| 64 | #define FASYNC O_ASYNC | |
| 65 | #define O_SHLOCK 00200 /* shared file lock present */ | |
| 66 | #define O_EXLOCK 00400 /* exclusive file lock present */ | |
| 67 | /* 00800 /* unused */ | |
| 68 | #endif | |
| 69 | #define O_CREAT 01000 /* create if nonexistant */ | |
| 70 | #define O_TRUNC 02000 /* truncate to zero length */ | |
| 71 | #define O_EXCL 04000 /* error if already exists */ | |
| 72 | /* 08000 /* unused */ | |
| 73 | ||
| 74 | /* defined by POSIX 1003.1; BSD default, so no bit required */ | |
| 75 | #define O_NOCTTY 0 /* don't assign controlling terminal */ | |
| 76 | ||
| 77 | /* mask for file access modes */ | |
| 78 | #define O_ACCMODE (O_RDONLY|O_WRONLY|O_RDWR) | |
| 79 | ||
| 0f9e0ffb | 80 | #ifndef KERNEL |
| 3608b574 | 81 | #if __STDC__ || c_plusplus |
| c3d31314 | 82 | #include <sys/types.h> |
| f7532098 | 83 | extern int fcntl(int, int, int); |
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84 | extern int creat(const char *, mode_t); |
| 85 | extern int open(const char *, int, ...); | |
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86 | #else |
| 87 | extern int fcntl(); | |
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88 | extern int creat(); |
| 89 | extern int open(); | |
| f7532098 | 90 | #endif |
| 0f9e0ffb | 91 | #endif |
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92 | |
| 93 | #endif /* !F_DUPFD */ |