* errno.cc (errmap): Map ERROR_SHARING_VIOLATION to EBUSY,

	ERROR_EOM_OVERFLOW and ERROR_NO_DATA_DETECTED to EIO.  Add mappings
	for ERROR_NO_MEDIA_IN_DRIVE, ERROR_DEVICE_REQUIRES_CLEANING and
	ERROR_DEVICE_DOOR_OPEN.
	* fhandler.h (class fhandler_dev_raw): Drop varblkop member.
	(fhandler_dev_raw::is_eom): De-virtualize.
	(fhandler_dev_raw::is_eof): Ditto.
	(class fhandler_dev_tape): Drop lasterr and dp member.  Add mt_mtx
	member.  Drop all private methods formerly used by ioctl.
	(fhandler_dev_tape::is_rewind_device): Use get_minor for clarity.
	(fhandler_dev_tape::driveno): New method.
	(fhandler_dev_tape::drive_init): New method.
	(fhandler_dev_tape::clear): Remove method.
	(fhandler_dev_tape::is_eom): Ditto.
	(fhandler_dev_tape::is_eof): Ditto.
	(fhandler_dev_tape::write_file): Ditto.
	(fhandler_dev_tape::read_file): Ditto.
	(fhandler_dev_tape::_lock): New method.
	(fhandler_dev_tape::unlock): New method.
	(fhandler_dev_tape::raw_read): New method.
	(fhandler_dev_tape::raw_write): New method.
	* fhandler_raw.cc (fhandler_dev_raw::is_eom): New method.
	(fhandler_dev_raw::is_eof): New method.
	(fhandler_dev_raw::open): Allow setting write through option by
	using the O_TEXT flag as ... flag.
	(fhandler_dev_raw::writebuf): Remove usage of varblkop and other
	tape specific code.
	(fhandler_dev_raw::raw_read): Ditto.
	(fhandler_dev_raw::dup): Ditto.
	* fhandler_tape.cc: Rewrite tape operations entirely.  Implement
	new tape driver classes mtinfo, mtinfo_drive and mtinfo_part.
	Reduce fhandler_dev_tape methods to mostly just calling appropriate
	mtinfo_drive methods.
	(mtinfo_init): New function adding the mtinfo shared memory area.
	* mtinfo.h: New file, containing the definition of the new tape
	driver classes.
	* shared.cc: Include mtinfo.h.
	(offsets): Add entry for mtinfo shared memory area.
	(memory_init): Call mtinfo_init.
	* shared_info.h (shared_locations): Add SH_MTINFO shared location.
	* include/cygwin/mtio.h: Change and add various comments.  Add GMT_xxx
	macros for new generic flags.  Add MT_ST_xxx bitfield definitions
	for MTSETDRVBUFFER ioctl.
	* include/cygwin/version.h: Bump API minor version number.

1 files changed, 6 insertions, 3 deletions

diff --git a/winsup/cygwin/errno.cc b/winsup/cygwin/errno.cc
index 2c7915c59..475164a02 100644
--- a/winsup/cygwin/errno.cc
+++ b/winsup/cygwin/errno.cc
@@ -48,7 +48,7 @@ static NO_COPY struct
   X (NO_MORE_FILES,		ENMFILE),
   X (WRITE_PROTECT,		EROFS),
   X (BAD_UNIT,			ENODEV),
-  X (SHARING_VIOLATION,		EACCES),
+  X (SHARING_VIOLATION,		EBUSY),
   X (LOCK_VIOLATION,		EACCES),
   X (SHARING_BUFFER_EXCEEDED,	ENOLCK),
   X (HANDLE_EOF,		ENODATA),
@@ -101,10 +101,10 @@ static NO_COPY struct
   X (IO_DEVICE,			EIO),
   X (NOT_OWNER,			EPERM),
   X (END_OF_MEDIA,		ENOSPC),
-  X (EOM_OVERFLOW,		ENOSPC),
+  X (EOM_OVERFLOW,		EIO),
   X (BEGINNING_OF_MEDIA,	EIO),
   X (SETMARK_DETECTED,		EIO),
-  X (NO_DATA_DETECTED,		ENOSPC),
+  X (NO_DATA_DETECTED,		EIO),
   X (POSSIBLE_DEADLOCK,		EDEADLOCK),
   X (CRC,			EIO),
   X (NEGATIVE_SEEK,		EINVAL),
@@ -116,6 +116,9 @@ static NO_COPY struct
   X (INVALID_BLOCK_LENGTH,	EIO),
   X (BUS_RESET,			EIO),
   X (FILEMARK_DETECTED,		EIO),
+  X (NO_MEDIA_IN_DRIVE,		ENOMEDIUM),
+  X (DEVICE_REQUIRES_CLEANING,	EIO),
+  X (DEVICE_DOOR_OPEN,		EIO),
   { 0, NULL, 0}
 };