Replace is_fs_device with is_fs_special throughout.unlabeled-1.238.4

* Makefile.in (DLL_OFILES): Add fhandler_fifo.o.
* devices.h (fh_devices): Renumber some minor numbers to fit in 8 bits.
* dtable.cc (dtable::build_fhandler): Handle FH_FIFO.  Set errno to ENODEV if
device not found.
* dtable::find_fifo: Define new function.
* dtable.h (dtable::find_fifo): Declare new function.
* fhandler.cc (fhandler_base::device_access_denied): Fix O_RDONLY test.
(fhandler_base::write): Use output file handle for writing.
(fhandler_base::fstat): Use is_fs_special rather than is_fs_device.
* fhandler.h (fhandler_base::is_fs_special): Rename from is_fs_device.
(fhandler_pipe): Make private elements protected so that fhandler_fifo can use
them too.
(fhandler_pipe::create): New function derived from make_pipe.
(fhandler_fifo): Add more needed elements.
(fhandler_pty_master::slave): Add to track slave device.
(fhandler_pty_master::get_unit): Define.
* fhandler_tty.cc (fhandler_tty_master::init): Register slave device.
(fhandler_pty_master::open): Ditto.
(symlink_info::parse_device): Handle fifo specially.
* pinfo.cc (_pinfo::commune_recv): Initial fifo implementation.
(_pinfo::commune_send): Ditto.
* pinfo.h (picom): Add PICOM_FIFO.
* pipe.cc (fhandler_pipe::close): Close input handle here specifically.
(fhandler_pipe::create): Rename from make_pipe.  Create fhandlers rather than
fds.
(pipe): Use fhandler_pipe::create to create pipe.
(_pipe): Ditto.
* syscalls.cc (mknod): Accommodate fifos.

1 files changed, 8 insertions, 4 deletions

diff --git a/winsup/cygwin/syscalls.cc b/winsup/cygwin/syscalls.cc
index f512c05be..b54172550 100644
--- a/winsup/cygwin/syscalls.cc
+++ b/winsup/cygwin/syscalls.cc
@@ -536,7 +536,7 @@ open (const char *unix_path, int flags, ...)
 	  if (!(fh = cygheap->fdtab.build_fhandler_from_name (fd, unix_path,
 							      NULL, pc)))
 	    res = -1;		// errno already set
-	  else if (fh->is_fs_device () && fh->device_access_denied (flags))
+	  else if (fh->is_fs_special () && fh->device_access_denied (flags))
 	    {
 	      fd.release ();
 	      res = -1;
@@ -934,7 +934,7 @@ chmod (const char *path, mode_t mode)
       res = 0;
       goto done;
     }
-  if (win32_path.is_fs_device ())
+  if (win32_path.is_fs_special ())
     {
       res = chmod_device (win32_path, mode);
       goto done;
@@ -1972,11 +1972,17 @@ mknod (const char *path, mode_t mode, dev_t dev)
     }
 
   mode_t type = mode & S_IFMT;
+  _major_t major = dev >> 8 /* SIGH.  _major (dev) */;
+  _minor_t minor = dev & 0xff /* SIGH _minor (dev) */;
   switch (type)
     {
     case S_IFCHR:
     case S_IFBLK:
+      break;
+
     case S_IFIFO:
+      major = _major (FH_FIFO);
+      minor = _minor (FH_FIFO) & 0xff; /* SIGH again */
       break;
 
     case 0:
@@ -1994,8 +2000,6 @@ mknod (const char *path, mode_t mode, dev_t dev)
       return -1;
     }
 
-  _major_t major = dev >> 8 /* SIGH.  _major (dev) */;
-  _minor_t minor = dev & 0xff /* SIGH _minor (dev) */;
   return mknod_worker (w32path, type, mode, major, minor);
 }