* Makefile.in: Add devices.gperf.

* devices.h: New file.
* devices.gperf: Ditto.

2 files changed, 297 insertions, 0 deletions

diff --git a/winsup/cygwin/devices.gperf b/winsup/cygwin/devices.gperf
new file mode 100644
index 0000000..b764e07
--- /dev/null
+++ b/winsup/cygwin/devices.gperf
@@ -0,0 +1,175 @@
+%{
+#include "winsup.h"
+#include <sys/types.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include "devices.h"
+#include "sys/cygwin.h"
+#include "tty.h"
+#include "pinfo.h"
+#undef __GNUC__
+static unsigned int devhash (const char *, unsigned)
+  __attribute__ ((regparm (2)));
+%}
+struct device;
+%%
+"/dev/tty", FH_TTY, "\\dev\\tty", 0, 255, 0, 0
+"/dev/ttys", FH_TTYS, "\\dev\\tty%d", 0, 255, 0, 0
+"/dev/console", FH_CONSOLE, "\\dev\\console", 0, 0, 0, 0
+"/dev/ttym", FH_TTYM, "\\dev\\ttym", 0, 255, 0, 0
+"/dev/ptmx", FH_PTYM, "\\dev\\ptmx", 0, 0, 0, 0
+"/dev/windows", FH_WINDOWS, "\\dev\\windows", 0, 0, 0, 0
+"/dev/dsp", FH_OSS_DSP, "\\dev\\dsp", 0, 0, 0, 0
+"/dev/conin", FH_CONIN, "conin", 0, 0, 0, 0
+"/dev/conout", FH_CONOUT, "conout", 0, 0, 0, 0
+"/dev/null", FH_NULL, "nul", 0, 0, 0, 0
+"/dev/zero", FH_ZERO, "\\dev\\zero", 0, 0, 0, 0
+"/dev/random", FH_RANDOM, "\\dev\\random", 0, 0, 0, 0
+"/dev/urandom", FH_URANDOM, "\\dev\\urandom", 0, 0, 0, 0
+"/dev/mem", FH_MEM, "\\dev\\mem", 0, 0, 0, 0
+"/dev/clipboard", FH_CLIPBOARD, "\\dev\\clipboard", 0, 0, 0, 0
+"/dev/port", FH_PORT, "\\dev\\port", 0, 0, 0, 0
+"/dev/com", FH_SERIAL, "\\.\\com%d", 1, 99
+"/dev/ttyS", FH_SERIAL, "\\.\\com%d", 0, 99, -1
+"/dev/pipe", FH_PIPE, "\\dev\\pipe", 0, 0, 0, 0
+"/dev/piper", FH_PIPER, "\\dev\\piper", 0, 0, 0, 0
+"/dev/pipew", FH_PIPEW, "\\dev\\pipew", 0, 0, 0, 0
+"/dev/streamsocket", FH_SOCKET, "\\dev\\socket", 0, 0, 0, 0
+"/dev/tcp", FH_SOCKET, "\\dev\\socket", 0, 0, 0, 0
+"/dev/udp", FH_SOCKET, "\\dev\\socket", 0, 0, 0, 0
+"/dev/dgsocket", FH_SOCKET, "\\dev\\socket", 0, 0, 0, 0
+"/dev/st", FH_TAPE, "\\Device\\Tape%d", 0, 127
+"/dev/nst", FH_NTAPE, "\\Device\\Tape%d", 0, 127
+"/dev/fd", FH_FLOPPY, "\\Device\\Floppy%d", 0, 15
+"/dev/scd", FH_CDROM, "\\Device\\CdRom%d", 0, 15
+"/dev/sd", FH_SD, "\\Device\\Harddisk%d\\Partition%d", 'a', 'z', -'a', 16
+"/dev/tape", FH_TAPE, "\\Device\\Tape%d", 0, 127, 0, 0
+"/dev/ntape", FH_NTAPE, "\\Device\\Tape%d", 0, 127, 128, 0
+"\\\\.\\tape", FH_TAPE, "\\Device\\Tape%d", 0, 127, 0, 0
+"\\\\.\\ntape", FH_NTAPE, "\\Device\\Tape%d", 0, 127, 128, 0
+"\\\\.\\physicaldrive", FH_SD, "\\Device\\Harddisk%d\\Partition%d", 0, 224, 0, 16
+"\\\\.\\a:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\b:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\c:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\d:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\e:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\f:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\g:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\h:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\i:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\j:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\k:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\l:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\m:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\n:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\o:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\p:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\q:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\r:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\s:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\t:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\u:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\v:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\w:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\x:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\y:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"\\\\.\\z:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"////.//tape", FH_TAPE, "//Device//Tape%d", 0, 127, 0, 0
+"////.//ntape", FH_NTAPE, "//Device//Tape%d", 0, 127, 128, 0
+"//./physicaldrive", FH_SD, "\\Device\\Harddisk%d\\Partition%d", 0, 224, 0, 16
+"//./a:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./b:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./c:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./d:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./e:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./f:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./g:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./h:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./i:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./j:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./k:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./l:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./m:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./n:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./o:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./p:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./q:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./r:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./s:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./t:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./u:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./v:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./w:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./x:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./y:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+"//./z:", FH_RAWDRIVE, "\\DosDevices\\%c:", 0, 0, 0, 0
+%%
+void
+device::parse (const char *s)
+{
+  size_t len = strlen (s);
+  const device *dev = lookup (s, len);
+  unsigned unit = 0;
+
+  if (!dev || !*dev)
+    {
+      size_t prior_len = len;
+      while (len-- > 0 && isdigit (s[len]))
+	continue;
+      if (++len < prior_len)
+	{
+	  dev = lookup (s, len);
+	  if (!dev || !dev->upper)
+	    dev = NULL;
+	  else
+	    {
+	      unsigned n = atoi (s + len);
+	      if (dev->devn == FH_TTY)
+		dev = ttys_dev;         // SIGH
+	      if (n >= dev->lower && n <= dev->upper)
+		unit = n;
+	    }
+	}
+    }
+
+  if (!dev || !*dev)
+    devn = 0;
+  else
+    {
+      if (dev->devn != FH_TTY)
+	*this = *dev;
+      else
+	{
+	  if (!real_tty_attached (myself))
+	    *this = *console_dev;
+	  else
+	    {
+	      unit = myself->ctty;
+	      *this = *ttys_dev;
+	    }
+	}
+      if (!setunit (unit))
+	devn = 0;
+    }
+}
+
+const device *console_dev;
+const device *piper_dev;
+const device *pipew_dev;
+const device *socket_dev;
+const device *ttym_dev;
+const device *ttys_dev;
+const device *urandom_dev;
+
+void
+device::init ()
+{
+  piper_dev = lookup ("/dev/piper", sizeof ("/dev/piper") - 1);
+  pipew_dev = lookup ("/dev/pipew", sizeof ("/dev/pipew") - 1);
+  console_dev = lookup ("/dev/console", sizeof ("/dev/console") - 1);
+  ttym_dev = lookup ("/dev/ttym", sizeof ("/dev/ttym") - 1);
+  ttys_dev = lookup ("/dev/ttys", sizeof ("/dev/ttys") - 1);
+  socket_dev = lookup ("/dev/tcp", sizeof ("/dev/tcp") - 1);
+  urandom_dev = lookup ("/dev/urandom", sizeof ("/dev/urandom") - 1);
+}
diff --git a/winsup/cygwin/devices.h b/winsup/cygwin/devices.h
new file mode 100644
index 0000000..97002ed
--- /dev/null
+++ b/winsup/cygwin/devices.h
@@ -0,0 +1,122 @@
+/* devices.h
+
+   Copyright 2002 Red Hat, Inc.
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+/* Change this if we use another size for devices */
+#define FHDEV(maj, min) ((((unsigned) (maj)) << 16) | (unsigned) (min))
+
+typedef unsigned short _major_t;
+typedef unsigned short _minor_t;
+typedef unsigned char _devtype_t;
+typedef __dev32_t _dev_t;
+
+enum fh_devices
+{
+  /* "Slow" devices */
+  FH_TTY     = FHDEV (5, 0),
+  FH_CONSOLE = FHDEV (5, 1),
+  FH_CONIN   = FHDEV (5, 512),
+  FH_CONOUT  = FHDEV (5, 513),
+  FH_PTYM    = FHDEV (5, 2),	/* /dev/ptmx */
+
+  DEV_TTYM_MAJOR = 128,
+  FH_TTYM    = FHDEV (128, 0),
+  FH_TTYM_MAX= FHDEV (128, 255),
+
+  DEV_TTYS_MAJOR = 136,
+  FH_TTYS    = FHDEV (DEV_TTYS_MAJOR, 0),	/* FIXME: Should separate ttys and ptys */
+  FH_TTYS_MAX= FHDEV (DEV_TTYS_MAJOR, 255),	/* FIXME: Should separate ttys and ptys */
+
+  DEV_SERIAL_MAJOR = 117,
+  FH_SERIAL  = FHDEV (117, 0),	/* /dev/ttyS? */
+
+  FH_PIPE    = FHDEV (0, 512),
+  FH_PIPER   = FHDEV (0, 513),
+  FH_PIPEW   = FHDEV (0, 514),
+  FH_FIFO    = FHDEV (0, 515),
+  FH_SOCKET  = FHDEV (0, 516),
+  FH_WINDOWS = FHDEV (13, 512),
+
+  /* Fast devices */
+  FH_FS      = FHDEV (0, 517),	/* filesystem based device */
+
+  DEV_FLOPPY_MAJOR = 2,
+  FH_FLOPPY  = FHDEV (DEV_FLOPPY_MAJOR, 0),
+
+  DEV_CDROM_MAJOR = 11,
+  FH_CDROM   = FHDEV (DEV_CDROM_MAJOR, 0),
+
+  DEV_TAPE_MAJOR = 9,
+  FH_TAPE    = FHDEV (DEV_TAPE_MAJOR, 0),
+  FH_NTAPE   = FHDEV (DEV_TAPE_MAJOR, 128),
+  FH_MAXNTAPE= FHDEV (DEV_TAPE_MAJOR, 255),
+
+  DEV_SD_MAJOR = 8,
+  FH_SD      = FHDEV (8, 0),
+
+  FH_NULL    = FHDEV (1, 3),
+  FH_ZERO    = FHDEV (1, 4),
+  FH_PORT    = FHDEV (1, 5),
+  FH_RANDOM  = FHDEV (1, 8),
+  FH_URANDOM = FHDEV (1, 9),
+  FH_MEM     = FHDEV (1, 1),
+  FH_CLIPBOARD=FHDEV (13, 513),
+  FH_OSS_DSP = FHDEV (14, 3),
+
+  DEV_CYGDRIVE_MAJOR = 30,
+  FH_CYGDRIVE= FHDEV (DEV_CYGDRIVE_MAJOR, 0),
+  FH_CYGDRIVE_A= FHDEV (DEV_CYGDRIVE_MAJOR, 'a'),
+  FH_CYGDRIVE_Z= FHDEV (DEV_CYGDRIVE_MAJOR, 'z'),
+
+  FH_PROC    = FHDEV (0, 519),
+  FH_REGISTRY= FHDEV (0, 520),
+  FH_PROCESS = FHDEV (0, 521),
+
+  DEV_RAWDRIVE_MAJOR = 65,
+  FH_RAWDRIVE= FHDEV (DEV_RAWDRIVE_MAJOR, 0),
+
+  FH_BAD     = 0
+};
+
+struct device
+{
+  const char *name;
+  union
+  {
+    _dev_t devn;
+    struct
+    {
+      _minor_t minor;
+      _major_t major;
+    };
+  };
+  const char *fmt;
+  unsigned lower, upper;
+  int adjust;
+  unsigned mul;
+  _devtype_t type;
+  static const device *lookup (const char *, unsigned int = 0xffffffff);
+  void parse (const char *);
+  inline bool setunit (unsigned n)
+  {
+    if (mul && n > mul)
+      return false;
+    minor += (n + adjust) * (mul ?: 1);
+    return true;
+  }
+  static void init ();
+  inline operator int () const {return devn;}
+};
+
+extern const device *console_dev;
+extern const device *piper_dev;
+extern const device *pipew_dev;
+extern const device *socket_dev;
+extern const device *ttym_dev;
+extern const device *ttys_dev;