* termios.cc (setspeed): New function.

(cfsetospeed): Use setspeed to set speed.
(cfsetispeed): Use setspeed to set speed.
* autoload.cc: Add load statement for UuidCreate, and UuidCreateSequential.
* cpuid.h: New file.
* cygwin.din: Export gethostid.
* fhandler_proc.cc (cpuid): Move to cpuid.h.
(can_set_flag): Move to cpuid.h.
* syscalls.cc (gethostid): New function.
* version.h: Bump DLL minor version number to 83.

winsup/cygwin/ChangeLog

@@ -1,8 +1,25 @@
+2003-04-15  Christopher Faylor  <cgf@redhat.com>
+
+	* termios.cc (setspeed): New function.
+	(cfsetospeed): Use setspeed to set speed.
+	(cfsetispeed): Use setspeed to set speed.
+
+2003-04-15  Chris January <chris@atomice.net>
+
+	* autoload.cc: Add load statement for UuidCreate, and
+	UuidCreateSequential.
+	* cpuid.h: New file.
+	* cygwin.din: Export gethostid.
+	* fhandler_proc.cc (cpuid): Move to cpuid.h.
+	(can_set_flag): Move to cpuid.h.
+	* syscalls.cc (gethostid): New function.
+	* version.h: Bump DLL minor version number to 83.
+
 2003-04-15  Thomas Pfaff  <tpfaff@gmx.net>
 
 	* thread.h (pthread_rwlock::release): New method.
-	* thread.cc (pthread_rwlock::unlock): Use release to signal
+	* thread.cc (pthread_rwlock::unlock): Use release to signal waiting
-	waiting threads.
+	threads.
 	(pthread_rwlock::rdlock_cleanup): Signal waiting threads after a
 	cancelation.
 	(pthread_rwlock::wrlock_cleanup): Ditto.

winsup/cygwin/autoload.cc

@@ -523,4 +523,7 @@ LoadDLLfuncEx (timeGetDevCaps, 8, winmm, 1)
 LoadDLLfuncEx (timeGetTime, 0, winmm, 1)
 LoadDLLfuncEx (timeBeginPeriod, 4, winmm, 1)
 LoadDLLfuncEx (timeEndPeriod, 4, winmm, 1)
+
+LoadDLLfuncEx (UuidCreate, 4, rpcrt4, 1)
+LoadDLLfuncEx (UuidCreateSequential, 4, rpcrt4, 1)
 }

winsup/cygwin/cpuid.h

@@ -0,0 +1,35 @@
+#ifndef CPUID_H
+#define CPUID_H
+
+extern inline void
+cpuid (unsigned *a, unsigned *b, unsigned *c, unsigned *d, unsigned in)
+{
+  asm ("cpuid"
+       : "=a" (*a),
+         "=b" (*b),
+         "=c" (*c),
+         "=d" (*d)
+       : "a" (in));
+}
+
+extern inline bool
+can_set_flag (unsigned flag)
+{
+  unsigned r1, r2;
+  asm("pushfl\n"
+      "popl %0\n"
+      "movl %0, %1\n"
+      "xorl %2, %0\n"
+      "pushl %0\n"
+      "popfl\n"
+      "pushfl\n"
+      "popl %0\n"
+      "pushl %1\n"
+      "popfl\n"
+      : "=&r" (r1), "=&r" (r2)
+      : "ir" (flag)
+  );
+  return ((r1 ^ r2) & flag) != 0;
+}
+
+#endif // !CPUID_H

winsup/cygwin/cygwin.din

@@ -565,6 +565,7 @@ getgrnam32
 getgroups
 _getgroups = getgroups
 getgroups32
+gethostid
 getitimer
 getlogin
 _getlogin = getlogin

winsup/cygwin/fhandler_proc.cc

@@ -28,6 +28,7 @@ details. */
 #include <sys/param.h>
 #include "ntdll.h"
 #include <winioctl.h>
+#include "cpuid.h"
 
 #define _COMPILING_NEWLIB
 #include <dirent.h>
@@ -550,37 +551,6 @@ format_proc_stat (char *destbuf, size_t maxsize)
 	  bufptr += sizeof (x) - 1; \
 	} while (0)
 
-static inline void
-cpuid (unsigned *a, unsigned *b, unsigned *c, unsigned *d, unsigned in)
-{
-  asm ("cpuid"
-       : "=a" (*a),
-	 "=b" (*b),
-	 "=c" (*c),
-	 "=d" (*d)
-       : "a" (in));
-}
-
-static inline bool
-can_set_flag (unsigned flag)
-{
-  unsigned r1, r2;
-  asm("pushfl\n"
-      "popl %0\n"
-      "movl %0, %1\n"
-      "xorl %2, %0\n"
-      "pushl %0\n"
-      "popfl\n"
-      "pushfl\n"
-      "popl %0\n"
-      "pushl %1\n"
-      "popfl\n"
-      : "=&r" (r1), "=&r" (r2)
-      : "ir" (flag)
-  );
-  return ((r1 ^ r2) & flag) != 0;
-}
-
 static _off64_t
 format_proc_cpuinfo (char *destbuf, size_t maxsize)
 {

winsup/cygwin/include/cygwin/version.h

@@ -199,12 +199,13 @@ details. */
        80: Export pthread_rwlock stuff
        81: CW_CHECK_NTSEC addition to external.cc
        82: Export wcscoll wcswidth wcwidth
+       83: Export gethostid
      */
 
      /* Note that we forgot to bump the api for ualarm, strtoll, strtoull */
 
 #define CYGWIN_VERSION_API_MAJOR 0
-#define CYGWIN_VERSION_API_MINOR 82
+#define CYGWIN_VERSION_API_MINOR 83
 
      /* There is also a compatibity version number associated with the
 	shared memory regions.  It is incremented when incompatible

winsup/cygwin/syscalls.cc

@@ -36,6 +36,7 @@ details. */
 #include <winnls.h>
 #include <wininet.h>
 #include <lmcons.h> /* for UNLEN */
+#include <rpc.h>
 
 #undef fstat
 #undef stat
@@ -55,6 +56,8 @@ details. */
 #define NEED_VFORK
 #include "perthread.h"
 #include "pwdgrp.h"
+#include "cpuid.h"
+#include "registry.h"
 
 #undef _close
 #undef _lseek
@@ -2725,3 +2728,109 @@ pututline (struct utmp *ut)
       CloseHandle (mutex);
     }
 }
+
+extern "C"
+long gethostid(void)
+{
+  unsigned data[13] = {0x92895012,
+                       0x10293412,
+                       0x29602018,
+                       0x81928167,
+                       0x34601329,
+                       0x75630198,
+                       0x89860395,
+                       0x62897564,
+                       0x00194362,
+                       0x20548593,
+                       0x96839102,
+                       0x12219854,
+                       0x00290012};
+
+  bool has_cpuid = false;
+
+  if (!can_set_flag (0x00040000))
+    debug_printf ("386 processor - no cpuid");
+  else
+    {
+      debug_printf ("486 processor");
+      if (can_set_flag (0x00200000))
+        {
+          debug_printf ("processor supports CPUID instruction");
+          has_cpuid = true;
+        }
+      else
+        debug_printf ("processor does not support CPUID instruction");
+    }
+  if (has_cpuid)
+    {
+      unsigned maxf, unused[3];
+      cpuid (&maxf, &unused[0], &unused[1], &unused[2], 0);
+      maxf &= 0xffff;
+      if (maxf >= 1)
+        {
+          unsigned features;
+          cpuid (&data[0], &unused[0], &unused[1], &features, 1);
+          if (features & (1 << 18))
+            {
+              debug_printf ("processor has psn");
+              if (maxf >= 3)
+                {
+                  cpuid (&unused[0], &unused[1], &data[1], &data[2], 3);
+                  debug_printf ("Processor PSN: %04x-%04x-%04x-%04x-%04x-%04x",
+                                data[0] >> 16, data[0] & 0xffff, data[2] >> 16, data[2] & 0xffff, data[1] >> 16, data[1] & 0xffff);
+                }
+            }
+          else
+            debug_printf ("processor does not have psn");
+        }
+    }
+
+  UUID Uuid;
+  RPC_STATUS status = UuidCreateSequential (&Uuid);
+  if (GetLastError () == ERROR_PROC_NOT_FOUND)
+    status = UuidCreate (&Uuid);
+  if (status == RPC_S_OK)
+    {
+      data[4] = *(unsigned *)&Uuid.Data4[2];
+      data[5] = *(unsigned short *)&Uuid.Data4[6];
+      // Unfortunately Windows will sometimes pick a virtual Ethernet card
+      // e.g. VMWare Virtual Ethernet Adaptor
+      debug_printf ("MAC address of first Ethernet card: %02x:%02x:%02x:%02x:%02x:%02x",
+                    Uuid.Data4[2], Uuid.Data4[3], Uuid.Data4[4],
+                    Uuid.Data4[5], Uuid.Data4[6], Uuid.Data4[7]);
+    }
+  else
+    {
+      debug_printf ("no Ethernet card installed");
+    }
+
+  reg_key key (HKEY_LOCAL_MACHINE, KEY_READ, "SOFTWARE", "Microsoft", "Windows", "CurrentVersion", NULL);
+  key.get_string ("ProductId", (char *)&data[6], 24, "00000-000-0000000-00000");
+  debug_printf ("Windows Product ID: %s", (char *)&data[6]);
+
+  GetDiskFreeSpaceEx ("C:\\", NULL, (PULARGE_INTEGER) &data[11], NULL);
+  if (GetLastError () == ERROR_PROC_NOT_FOUND)
+    GetDiskFreeSpace ("C:\\", NULL, NULL, NULL, (DWORD *)&data[11]);
+
+  debug_printf ("hostid entropy: %08x %08x %08x %08x "
+                                "%08x %08x %08x %08x "
+                                "%08x %08x %08x %08x "
+                                "%08x",
+                                data[0], data[1],
+                                data[2], data[3],
+                                data[4], data[5],
+                                data[6], data[7],
+                                data[8], data[9],
+                                data[10], data[11],
+                                data[12]);
+
+  long hostid = 0x40291372;
+  // a random hashing algorithm
+  // dependancy on md5 is probably too costly
+  for (int i=0;i<13;i++)
+        hostid ^= ((data[i] << (i << 2)) | (data[i] >> (32 - (i << 2))));
+
+  debug_printf ("hostid: %08x", hostid);
+
+  return hostid;
+}

winsup/cygwin/termios.cc

@@ -247,14 +247,52 @@ cfgetispeed (struct termios *tp)
   return __tonew_termios (tp)->c_ispeed;
 }
 
+static inline int
+setspeed (speed_t &set_speed, speed_t from_speed)
+{
+  int res;
+  switch (from_speed)
+    {
+    case B0:
+    case B50:
+    case B75:
+    case B110:
+    case B134:
+    case B150:
+    case B200:
+    case B300:
+    case B600:
+    case B1200:
+    case B1800:
+    case B2400:
+    case B4800:
+    case B9600:
+    case B19200:
+    case B38400:
+    case B57600:
+    case B115200:
+    case B128000:
+    case B230400:
+    case B256000:
+      set_speed = from_speed;
+      res = 0;
+      break;
+    default:
+      set_errno (EINVAL);
+      res = -1;
+      break;
+    }
+  return res;
+}
+
 /* cfsetospeed: POSIX96 7.1.3.1 */
 extern "C" int
 cfsetospeed (struct termios *in_tp, speed_t speed)
 {
   struct termios *tp = __tonew_termios (in_tp);
-  tp->c_ospeed = speed;
+  int res = setspeed (tp->c_ospeed, speed);
   (void) __toapp_termios (in_tp, tp);
-  return 0;
+  return res;
 }
 
 /* cfsetispeed: POSIX96 7.1.3.1 */
@@ -262,7 +300,7 @@ extern "C" int
 cfsetispeed (struct termios *in_tp, speed_t speed)
 {
   struct termios *tp = __tonew_termios (in_tp);
-  tp->c_ispeed = speed;
+  int res = setspeed (tp->c_ispeed, speed);
   (void) __toapp_termios (in_tp, tp);
-  return 0;
+  return res;
 }