newlib/libc/include/sys/_default_fcntl.h

   1
   2 #ifndef _SYS__DEFAULT_FCNTL_H_
   3 #ifdef __cplusplus
   4 extern "C" {
   5 #endif
   6 #define _SYS__DEFAULT_FCNTL_H_
   7 #include <_ansi.h>
   8 #include <sys/cdefs.h>
   9 #define _FOPEN          (-1)    /* from sys/file.h, kernel use only */
  10 #define _FREAD          0x0001  /* read enabled */
  11 #define _FWRITE         0x0002  /* write enabled */
  12 #define _FAPPEND        0x0008  /* append (writes guaranteed at the end) */
  13 #define _FMARK          0x0010  /* internal; mark during gc() */
  14 #define _FDEFER         0x0020  /* internal; defer for next gc pass */
  15 #define _FASYNC         0x0040  /* signal pgrp when data ready */
  16 #define _FSHLOCK        0x0080  /* BSD flock() shared lock present */
  17 #define _FEXLOCK        0x0100  /* BSD flock() exclusive lock present */
  18 #define _FCREAT         0x0200  /* open with file create */
  19 #define _FTRUNC         0x0400  /* open with truncation */
  20 #define _FEXCL          0x0800  /* error on open if file exists */
  21 #define _FNBIO          0x1000  /* non blocking I/O (sys5 style) */
  22 #define _FSYNC          0x2000  /* do all writes synchronously */
  23 #define _FNONBLOCK      0x4000  /* non blocking I/O (POSIX style) */
  24 #define _FNDELAY        _FNONBLOCK      /* non blocking I/O (4.2 style) */
  25 #define _FNOCTTY        0x8000  /* don't assign a ctty on this open */
  26 #if defined (__CYGWIN__)
  27 #define _FBINARY        0x10000
  28 #define _FTEXT          0x20000
  29 #endif
  30 #define _FNOINHERIT     0x40000
  31 #define _FDIRECT        0x80000
  32 #define _FNOFOLLOW      0x100000
  33 #define _FDIRECTORY     0x200000
  34 #define _FEXECSRCH      0x400000
  35 #if defined (__CYGWIN__)
  36 #define _FTMPFILE       0x800000
  37 #define _FNOATIME       0x1000000
  38 #define _FPATH          0x2000000
  39 #endif
  40
  41 #define O_ACCMODE       (O_RDONLY|O_WRONLY|O_RDWR)
  42
  43 /*
  44  * Flag values for open(2) and fcntl(2)
  45  * The kernel adds 1 to the open modes to turn it into some
  46  * combination of FREAD and FWRITE.
  47  */
  48 #define O_RDONLY        0               /* +1 == FREAD */
  49 #define O_WRONLY        1               /* +1 == FWRITE */
  50 #define O_RDWR          2               /* +1 == FREAD|FWRITE */
  51 #define O_APPEND        _FAPPEND
  52 #define O_CREAT         _FCREAT
  53 #define O_TRUNC         _FTRUNC
  54 #define O_EXCL          _FEXCL
  55 #define O_SYNC          _FSYNC
  56 /*      O_NDELAY        _FNDELAY        set in include/fcntl.h */
  57 /*      O_NDELAY        _FNBIO          set in include/fcntl.h */
  58 #define O_NONBLOCK      _FNONBLOCK
  59 #define O_NOCTTY        _FNOCTTY
  60
  61 /* POSIX-1.2008 specific flags */
  62 #if __POSIX_VISIBLE >= 200809
  63 #define O_CLOEXEC       _FNOINHERIT
  64 #define O_NOFOLLOW      _FNOFOLLOW
  65 #define O_DIRECTORY     _FDIRECTORY
  66 #define O_EXEC          _FEXECSRCH
  67 #define O_SEARCH        _FEXECSRCH
  68 #endif
  69
  70 #if __BSD_VISIBLE
  71 #define O_DIRECT        _FDIRECT
  72 #endif
  73
  74 #define O_DSYNC         _FSYNC
  75 #define O_RSYNC         _FSYNC
  76
  77 #if defined (__CYGWIN__)
  78 #define O_BINARY        _FBINARY
  79 #define O_TEXT          _FTEXT
  80
  81 /* Linux-specific flags */
  82 #if __GNU_VISIBLE
  83 #define O_TMPFILE       _FTMPFILE
  84 #define O_NOATIME       _FNOATIME
  85 #define O_PATH          _FPATH
  86 #endif
  87 #endif
  88
  89 #if __MISC_VISIBLE
  90
  91 /*
  92  * Flags that work for fcntl(fd, F_SETFL, FXXXX)
  93  */
  94 #define FAPPEND         _FAPPEND
  95 #define FSYNC           _FSYNC
  96 #define FASYNC          _FASYNC
  97 #define FNBIO           _FNBIO
  98 #define FNONBIO         _FNONBLOCK      /* XXX fix to be NONBLOCK everywhere */
  99 #define FNDELAY         _FNDELAY
 100
 101 /*
 102  * Flags that are disallowed for fcntl's (FCNTLCANT);
 103  * used for opens, internal state, or locking.
 104  */
 105 #define FREAD           _FREAD
 106 #define FWRITE          _FWRITE
 107 #define FMARK           _FMARK
 108 #define FDEFER          _FDEFER
 109 #define FSHLOCK         _FSHLOCK
 110 #define FEXLOCK         _FEXLOCK
 111
 112 /*
 113  * The rest of the flags, used only for opens
 114  */
 115 #define FOPEN           _FOPEN
 116 #define FCREAT          _FCREAT
 117 #define FTRUNC          _FTRUNC
 118 #define FEXCL           _FEXCL
 119 #define FNOCTTY         _FNOCTTY
 120
 121 #endif  /* __MISC_VISIBLE */
 122
 123 #if __BSD_VISIBLE
 124 #define FNONBLOCK       _FNONBLOCK
 125 #endif  /* __BSD_VISIBLE */
 126
 127 /* XXX close on exec request; must match UF_EXCLOSE in user.h */
 128 #define FD_CLOEXEC      1       /* posix */
 129
 130 /* fcntl(2) requests */
 131 #define F_DUPFD         0       /* Duplicate fildes */
 132 #define F_GETFD         1       /* Get fildes flags (close on exec) */
 133 #define F_SETFD         2       /* Set fildes flags (close on exec) */
 134 #define F_GETFL         3       /* Get file flags */
 135 #define F_SETFL         4       /* Set file flags */
 136 #if __BSD_VISIBLE || __POSIX_VISIBLE >= 200112
 137 #define F_GETOWN        5       /* Get owner - for ASYNC */
 138 #define F_SETOWN        6       /* Set owner - for ASYNC */
 139 #endif /* __BSD_VISIBLE || __POSIX_VISIBLE >= 200112 */
 140 #define F_GETLK         7       /* Get record-locking information */
 141 #define F_SETLK         8       /* Set or Clear a record-lock (Non-Blocking) */
 142 #define F_SETLKW        9       /* Set or Clear a record-lock (Blocking) */
 143 #if __MISC_VISIBLE
 144 #define F_RGETLK        10      /* Test a remote lock to see if it is blocked */
 145 #define F_RSETLK        11      /* Set or unlock a remote lock */
 146 #define F_CNVT          12      /* Convert a fhandle to an open fd */
 147 #define F_RSETLKW       13      /* Set or Clear remote record-lock(Blocking) */
 148 #endif  /* __MISC_VISIBLE */
 149 #if __POSIX_VISIBLE >= 200809
 150 #define F_DUPFD_CLOEXEC 14      /* As F_DUPFD, but set close-on-exec flag */
 151 #endif
 152
 153 /* fcntl(2) flags (l_type field of flock structure) */
 154 #define F_RDLCK         1       /* read lock */
 155 #define F_WRLCK         2       /* write lock */
 156 #define F_UNLCK         3       /* remove lock(s) */
 157 #if __MISC_VISIBLE
 158 #define F_UNLKSYS       4       /* remove remote locks for a given system */
 159 #endif  /* __MISC_VISIBLE */
 160
 161 #if __BSD_VISIBLE || __POSIX_VISIBLE >= 200809
 162 /* Special descriptor value to denote the cwd in calls to openat(2) etc. */
 163 #define AT_FDCWD -2
 164
 165 /* Flag values for faccessat2) et al. */
 166 #define AT_EACCESS                 0x0001
 167 #define AT_SYMLINK_NOFOLLOW        0x0002
 168 #define AT_SYMLINK_FOLLOW          0x0004
 169 #define AT_REMOVEDIR               0x0008
 170 #if __GNU_VISIBLE
 171 #define AT_EMPTY_PATH              0x0010
 172 #define _AT_NULL_PATHNAME_ALLOWED  0x4000 /* Internal flag used by futimesat */
 173 #endif
 174 #endif
 175
 176 #if __BSD_VISIBLE
 177 /* lock operations for flock(2) */
 178 #define LOCK_SH         0x01            /* shared file lock */
 179 #define LOCK_EX         0x02            /* exclusive file lock */
 180 #define LOCK_NB         0x04            /* don't block when locking */
 181 #define LOCK_UN         0x08            /* unlock file */
 182 #endif
 183
 184 /*#include <sys/stdtypes.h>*/
 185
 186 #ifndef __CYGWIN__
 187 /* file segment locking set data type - information passed to system by user */
 188 struct flock {
 189         short   l_type;         /* F_RDLCK, F_WRLCK, or F_UNLCK */
 190         short   l_whence;       /* flag to choose starting offset */
 191         long    l_start;        /* relative offset, in bytes */
 192         long    l_len;          /* length, in bytes; 0 means lock to EOF */
 193         short   l_pid;          /* returned with F_GETLK */
 194         short   l_xxx;          /* reserved for future use */
 195 };
 196 #endif /* __CYGWIN__ */
 197
 198 #if __MISC_VISIBLE
 199 /* extended file segment locking set data type */
 200 struct eflock {
 201         short   l_type;         /* F_RDLCK, F_WRLCK, or F_UNLCK */
 202         short   l_whence;       /* flag to choose starting offset */
 203         long    l_start;        /* relative offset, in bytes */
 204         long    l_len;          /* length, in bytes; 0 means lock to EOF */
 205         short   l_pid;          /* returned with F_GETLK */
 206         short   l_xxx;          /* reserved for future use */
 207         long    l_rpid;         /* Remote process id wanting this lock */
 208         long    l_rsys;         /* Remote system id wanting this lock */
 209 };
 210 #endif  /* __MISC_VISIBLE */
 211
 212 #include <sys/types.h>
 213 #include <sys/stat.h>           /* sigh. for the mode bits for open/creat */
 214
 215 extern int open (const char *, int, ...);
 216 #if __ATFILE_VISIBLE
 217 extern int openat (int, const char *, int, ...);
 218 #endif
 219 extern int creat (const char *, mode_t);
 220 extern int fcntl (int, int, ...);
 221 #if __BSD_VISIBLE
 222 extern int flock (int, int);
 223 #endif
 224 #if __GNU_VISIBLE
 225 #include <sys/time.h>
 226 extern int futimesat (int, const char *, const struct timeval [2]);
 227 #endif
 228
 229 /* Provide _<systemcall> prototypes for functions provided by some versions
 230    of newlib.  */
 231 #ifdef _LIBC
 232 extern int _open (const char *, int, ...);
 233 extern int _fcntl (int, int, ...);
 234 #ifdef __LARGE64_FILES
 235 extern int _open64 (const char *, int, ...);
 236 #endif
 237 #endif
 238
 239 #ifdef __cplusplus
 240 }
 241 #endif
 242 #endif  /* !_SYS__DEFAULT_FCNTL_H_ */