/* Copyright (c) 2007 Jeff Johnston */ #ifndef _SYS__DEFAULT_FCNTL_H_ #ifdef __cplusplus extern "C" { #endif #define _SYS__DEFAULT_FCNTL_H_ #include <_ansi.h> #include #define _FOPEN (-1) /* from sys/file.h, kernel use only */ #define _FREAD 0x0001 /* read enabled */ #define _FWRITE 0x0002 /* write enabled */ #define _FAPPEND 0x0400 /* append (writes guaranteed at the end) */ #define _FMARK 0x0010 /* internal; mark during gc() */ #define _FDEFER 0x0020 /* internal; defer for next gc pass */ #define _FASYNC 0x0008 /* signal pgrp when data ready */ #define _FSHLOCK 0x0080 /* BSD flock() shared lock present */ #define _FEXLOCK 0x0100 /* BSD flock() exclusive lock present */ #define _FCREAT 0x0040 /* open with file create */ #define _FTRUNC 0x0200 /* open with truncation */ #define _FEXCL 0x0800 /* error on open if file exists */ #define _FNBIO 0x1000 /* non blocking I/O (sys5 style) */ #define _FSYNC 0x2000 /* do all writes synchronously */ #define _FNONBLOCK 0x4000 /* non blocking I/O (POSIX style) */ #define _FNDELAY _FNONBLOCK /* non blocking I/O (4.2 style) */ #define _FNOCTTY 0x8000 /* don't assign a ctty on this open */ #if defined (__CYGWIN__) #define _FBINARY 0x10000 #define _FTEXT 0x20000 #endif #define _FNOINHERIT 0x40000 #define _FDIRECT 0x80000 #define _FNOFOLLOW 0x100000 #define _FDIRECTORY 0x200000 #define _FEXECSRCH 0x400000 #if defined (__CYGWIN__) #define _FTMPFILE 0x800000 #define _FNOATIME 0x1000000 #define _FPATH 0x2000000 #endif #define O_ACCMODE (O_RDONLY|O_WRONLY|O_RDWR) /* * Flag values for open(2) and fcntl(2) * The kernel adds 1 to the open modes to turn it into some * combination of FREAD and FWRITE. */ #define O_RDONLY 0 /* +1 == FREAD */ #define O_WRONLY 1 /* +1 == FWRITE */ #define O_RDWR 2 /* +1 == FREAD|FWRITE */ #define O_APPEND _FAPPEND #define O_CREAT _FCREAT #define O_TRUNC _FTRUNC #define O_EXCL _FEXCL #define O_SYNC _FSYNC /* O_NDELAY _FNDELAY set in include/fcntl.h */ /* O_NDELAY _FNBIO set in include/fcntl.h */ #define O_NONBLOCK _FNONBLOCK #define O_NOCTTY _FNOCTTY /* POSIX-1.2008 specific flags */ #if __POSIX_VISIBLE >= 200809 #define O_CLOEXEC _FNOINHERIT #define O_NOFOLLOW _FNOFOLLOW #define O_DIRECTORY _FDIRECTORY #define O_EXEC _FEXECSRCH #define O_SEARCH _FEXECSRCH #endif #if __BSD_VISIBLE #define O_DIRECT _FDIRECT #endif #if defined (__CYGWIN__) #define O_BINARY _FBINARY #define O_TEXT _FTEXT #define O_DSYNC _FSYNC #define O_RSYNC _FSYNC /* Linux-specific flags */ #if __GNU_VISIBLE #define O_TMPFILE _FTMPFILE #define O_NOATIME _FNOATIME #define O_PATH _FPATH #endif #endif #if __MISC_VISIBLE /* * Flags that work for fcntl(fd, F_SETFL, FXXXX) */ #define FAPPEND _FAPPEND #define FSYNC _FSYNC #define FASYNC _FASYNC #define FNBIO _FNBIO #define FNONBIO _FNONBLOCK /* XXX fix to be NONBLOCK everywhere */ #define FNDELAY _FNDELAY /* * Flags that are disallowed for fcntl's (FCNTLCANT); * used for opens, internal state, or locking. */ #define FREAD _FREAD #define FWRITE _FWRITE #define FMARK _FMARK #define FDEFER _FDEFER #define FSHLOCK _FSHLOCK #define FEXLOCK _FEXLOCK /* * The rest of the flags, used only for opens */ #define FOPEN _FOPEN #define FCREAT _FCREAT #define FTRUNC _FTRUNC #define FEXCL _FEXCL #define FNOCTTY _FNOCTTY #endif /* __MISC_VISIBLE */ #if __BSD_VISIBLE #define FNONBLOCK _FNONBLOCK #endif /* __BSD_VISIBLE */ /* XXX close on exec request; must match UF_EXCLOSE in user.h */ #define FD_CLOEXEC 1 /* posix */ /* fcntl(2) requests */ #define F_DUPFD 0 /* Duplicate fildes */ #define F_GETFD 1 /* Get fildes flags (close on exec) */ #define F_SETFD 2 /* Set fildes flags (close on exec) */ #define F_GETFL 3 /* Get file flags */ #define F_SETFL 4 /* Set file flags */ #if __BSD_VISIBLE || __POSIX_VISIBLE >= 200112 #define F_GETOWN 5 /* Get owner - for ASYNC */ #define F_SETOWN 6 /* Set owner - for ASYNC */ #endif /* __BSD_VISIBLE || __POSIX_VISIBLE >= 200112 */ #define F_GETLK 7 /* Get record-locking information */ #define F_SETLK 8 /* Set or Clear a record-lock (Non-Blocking) */ #define F_SETLKW 9 /* Set or Clear a record-lock (Blocking) */ #if __MISC_VISIBLE #define F_RGETLK 10 /* Test a remote lock to see if it is blocked */ #define F_RSETLK 11 /* Set or unlock a remote lock */ #define F_CNVT 12 /* Convert a fhandle to an open fd */ #define F_RSETLKW 13 /* Set or Clear remote record-lock(Blocking) */ #endif /* __MISC_VISIBLE */ #if __POSIX_VISIBLE >= 200809 #define F_DUPFD_CLOEXEC 14 /* As F_DUPFD, but set close-on-exec flag */ #endif /* fcntl(2) flags (l_type field of flock structure) */ #define F_RDLCK 1 /* read lock */ #define F_WRLCK 2 /* write lock */ #define F_UNLCK 3 /* remove lock(s) */ #if __MISC_VISIBLE #define F_UNLKSYS 4 /* remove remote locks for a given system */ #endif /* __MISC_VISIBLE */ #if __BSD_VISIBLE || __POSIX_VISIBLE >= 200809 /* Special descriptor value to denote the cwd in calls to openat(2) etc. */ #define AT_FDCWD -2 /* Flag values for faccessat2) et al. */ #define AT_EACCESS 1 #define AT_SYMLINK_NOFOLLOW 2 #define AT_SYMLINK_FOLLOW 4 #define AT_REMOVEDIR 8 #if __GNU_VISIBLE #define AT_EMPTY_PATH 16 #endif #endif #if __BSD_VISIBLE /* lock operations for flock(2) */ #define LOCK_SH 0x01 /* shared file lock */ #define LOCK_EX 0x02 /* exclusive file lock */ #define LOCK_NB 0x04 /* don't block when locking */ #define LOCK_UN 0x08 /* unlock file */ #endif /*#include */ #ifndef __CYGWIN__ /* file segment locking set data type - information passed to system by user */ struct flock { short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */ short l_whence; /* flag to choose starting offset */ long l_start; /* relative offset, in bytes */ long l_len; /* length, in bytes; 0 means lock to EOF */ short l_pid; /* returned with F_GETLK */ short l_xxx; /* reserved for future use */ }; #endif /* __CYGWIN__ */ #if __MISC_VISIBLE /* extended file segment locking set data type */ struct eflock { short l_type; /* F_RDLCK, F_WRLCK, or F_UNLCK */ short l_whence; /* flag to choose starting offset */ long l_start; /* relative offset, in bytes */ long l_len; /* length, in bytes; 0 means lock to EOF */ short l_pid; /* returned with F_GETLK */ short l_xxx; /* reserved for future use */ long l_rpid; /* Remote process id wanting this lock */ long l_rsys; /* Remote system id wanting this lock */ }; #endif /* __MISC_VISIBLE */ #include #include /* sigh. for the mode bits for open/creat */ extern int open (const char *, int, ...); #if __ATFILE_VISIBLE extern int openat (int, const char *, int, ...); #endif extern int creat (const char *, mode_t); extern int fcntl (int, int, ...); #if __BSD_VISIBLE extern int flock (int, int); #endif #if __GNU_VISIBLE #include extern int futimesat (int, const char *, const struct timeval [2]); #endif /* Provide _ prototypes for functions provided by some versions of newlib. */ #ifdef _LIBC extern int open (const char *, int, ...); extern int fcntl (int, int, ...); #ifdef __LARGE64_FILES extern int open64 (const char *, int, ...); #endif #endif #ifdef __cplusplus } #endif #endif /* !_SYS__DEFAULT_FCNTL_H_ */