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  1. /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
  2. /*
  3.  * Header for internal stat()/fstat() assist functions.
  4.  *
  5.  */
  6.  
  7. #ifndef __XSTAT_H
  8. #define __XSTAT_H
  9.  
  10. #include <stdio.h>
  11. #include <time.h>
  12. #include <sys/types.h>
  13. #include <sys/stat.h>
  14.  
  15. /* Some errno.h headers do not define EFAULT.  Here the value is
  16.    taken from POSIX IEEE 1003.1.  */
  17. #include <errno.h>
  18. #ifndef EFAULT
  19. #define EFAULT  14
  20. #endif
  21.  
  22. /* Under MS-DOS, file access permissions are shared by all, except for
  23.    Write permission. */
  24. #define READ_ACCESS     (S_IRUSR | S_IRGRP | S_IROTH)
  25. #define WRITE_ACCESS    S_IWUSR
  26. #define EXEC_ACCESS     (S_IXUSR | S_IXGRP | S_IXOTH)
  27.  
  28. /* Macro to convert a segment and an offset to a "far offset" suitable
  29.    for _farxxx() functions of DJGPP.  */
  30. #ifndef MK_FOFF
  31. #define MK_FOFF(s,o) ((int)((((unsigned long)(s)) << 4) + (unsigned short)(o)))
  32. #endif
  33.  
  34. /* Ralph Brown's Interrupt List says this should be the length
  35.    of the buffer for INT 21H AX=6000H.  */
  36. #define MAX_TRUE_NAME   128
  37.  
  38. extern unsigned short   _osmajor, _osminor;
  39. extern const    char  * _os_flavor;
  40.  
  41. /* Bits to flag f?stat() failed to use individual undocumented features. */
  42. #define _STFAIL_SDA         1   /* Get SDA call failed */
  43. #define _STFAIL_OSVER       2   /* Unsupported DOS version */
  44. #define _STFAIL_BADSDA      4   /* Bad pointer to SDA */
  45. #define _STFAIL_TRUENAME    8   /* _truename() failed */
  46. #define _STFAIL_HASH     0x10   /* inode defaults to hashing */
  47. #define _STFAIL_LABEL    0x20   /* Root dir, but no volume label */
  48. #define _STFAIL_DCOUNT   0x40   /* dirent_count ridiculously large */
  49. #define _STFAIL_WRITEBIT 0x80   /* fstat() failed to get write access bit */
  50. #define _STFAIL_DEVNO   0x100   /* fstat() failed to get device number */
  51. #define _STFAIL_BADSFT  0x200   /* SFT entry found, but can't be trusted */
  52. #define _STFAIL_SFTIDX  0x400   /* bad SFT index in JFT */
  53. #define _STFAIL_SFTNF   0x800   /* file entry not found in SFT array */
  54.  
  55. extern unsigned short   _djstat_fail_bits;
  56.  
  57. extern unsigned short   _djstat_flags;
  58.  
  59. extern time_t           _file_time_stamp(unsigned int);
  60. extern ino_t            _invent_inode(const char *, unsigned, unsigned long);
  61. extern unsigned short   _get_magic(const char *, int);
  62. extern unsigned short   _get_dos_version(int);
  63. extern char           * _truename(const char *, char *);
  64. extern int              _is_remote_drive(int);
  65. extern int              _is_executable(const char *, int, const char *);
  66. extern short            _get_dev_info(int);
  67. extern long             __filelength(int);
  68. extern int              _is_remote_handle(int);
  69. extern void             _djstat_describe_lossage(FILE *);
  70. extern int              _getftime(int, unsigned int *);
  71.  
  72. #endif  /* __XSTAT_H */
  73.