headers/private/fs_shell/fssh_fcntl.h

   1 /*
   2  * Copyright 2002-2007, Haiku Inc. All Rights Reserved.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef _FSSH_FCNTL_H
   6 #define _FSSH_FCNTL_H
   7
   8
   9 #include "fssh_types.h"
  10
  11
  12 /* commands that can be passed to fcntl() */
  13 #define FSSH_F_DUPFD            0x0001          /* duplicate fd */
  14 #define FSSH_F_GETFD            0x0002          /* get fd flags */
  15 #define FSSH_F_SETFD            0x0004          /* set fd flags */
  16 #define FSSH_F_GETFL            0x0008          /* get file status flags and access mode */
  17 #define FSSH_F_SETFL            0x0010          /* set file status flags */
  18 #define FSSH_F_GETLK            0x0020          /* get locking information */
  19 #define FSSH_F_SETLK            0x0080          /* set locking information */
  20 #define FSSH_F_SETLKW           0x0100          /* as above, but waits if blocked */
  21
  22 /* advisory locking types */
  23 #define FSSH_F_RDLCK            0x0040          /* read or shared lock */
  24 #define FSSH_F_UNLCK            0x0200          /* unlock */
  25 #define FSSH_F_WRLCK            0x0400          /* write or exclusive lock */
  26
  27 /* file descriptor flags for fcntl() */
  28 #define FSSH_FD_CLOEXEC         1                       /* close on exec */
  29
  30 /* file access modes for open() */
  31 #define FSSH_O_RDONLY           0x0000          /* read only */
  32 #define FSSH_O_WRONLY           0x0001          /* write only */
  33 #define FSSH_O_RDWR                     0x0002          /* read and write */
  34 #define FSSH_O_ACCMODE          0x0003          /* mask to get the access modes above */
  35 #define FSSH_O_RWMASK           FSSH_O_ACCMODE
  36
  37 /* flags for open() */
  38 #define FSSH_O_EXCL                     0x0100          /* exclusive creat */
  39 #define FSSH_O_CREAT            0x0200          /* create and open file */
  40 #define FSSH_O_TRUNC            0x0400          /* open with truncation */
  41 #define FSSH_O_NOCTTY           0x1000          /* currently unsupported */
  42 #define FSSH_O_NOTRAVERSE       0x2000          /* do not traverse leaf link */
  43
  44 /* flags for open() and fcntl() */
  45 #define FSSH_O_CLOEXEC          0x00000040      /* close on exec */
  46 #define FSSH_O_NONBLOCK         0x00000080      /* non blocking io */
  47 #define FSSH_O_APPEND           0x00000800      /* to end of file */
  48 #define FSSH_O_TEXT                     0x00004000      /* CR-LF translation */
  49 #define FSSH_O_BINARY           0x00008000      /* no translation */
  50 #define FSSH_O_SYNC                     0x00010000      /* write synchronized I/O file integrity */
  51 #define FSSH_O_RSYNC            0x00020000      /* read synchronized I/O file integrity */
  52 #define FSSH_O_DSYNC            0x00040000      /* write synchronized I/O data integrity */
  53 #define FSSH_O_NOFOLLOW         0x00080000      /* fail on symlinks */
  54 #define FSSH_O_NOCACHE          0x00100000      /* do not use the file system cache if */
  55                                                                                 /* possible */
  56 #define FSSH_O_DIRECT           FSSH_O_NOCACHE
  57 #define FSSH_O_DIRECTORY        0x00200000      /* fail if not a directory */
  58
  59 // TODO: currently not implemented additions:
  60         /* should we implement this? it's similar to O_NOTRAVERSE but will fail on symlinks */
  61 #define FSSH_O_TEMPORARY        0x00400000      /* used to avoid writing temporary files to disk */
  62
  63 #define FSSH_S_IREAD            0x0100  /* owner may read */
  64 #define FSSH_S_IWRITE           0x0080  /* owner may write */
  65
  66
  67 #ifdef __cplusplus
  68 extern "C" {
  69 #endif
  70
  71 extern int      fssh_creat(const char *path, fssh_mode_t mode);
  72 extern int      fssh_open(const char *pathname, int oflags, ...);
  73         /* the third argument is the permissions of the created file when O_CREAT
  74            is passed in oflags */
  75
  76 extern int      fssh_fcntl(int fd, int op, ...);
  77
  78 #ifdef __cplusplus
  79 }
  80 #endif
  81
  82 #endif /* _FSSH_FCNTL_H */