* cygwin.din: Add symbols for endutent(), getutent(), getutid(),

getutline(), setutent() and utmpname().
	* syscalls.cc (setutent): New function.
	(endutent): Ditto.
	(utmpname): Ditto.
	(getutent): Ditto.
	(getutid): Ditto.
	(getutline): Ditto.
	* include/cygwin/version.h: Bump API minor version.

winsup/cygwin/ChangeLog

@@ -1,3 +1,15 @@
+2001-12-28  Corinna Vinschen  <corinna@vinschen.de>
+
+	* cygwin.din: Add symbols for endutent(), getutent(), getutid(),
+	getutline(), setutent() and utmpname().
+	* syscalls.cc (setutent): New function.
+	(endutent): Ditto.
+	(utmpname): Ditto.
+	(getutent): Ditto.
+	(getutid): Ditto.
+	(getutline): Ditto.
+	* include/cygwin/version.h: Bump API minor version.
+
 2001-12-26  Christopher Faylor  <cgf@redhat.com>
 
 	* cygmagic: Add define name to warning.

winsup/cygwin/cygwin.din

@@ -159,6 +159,8 @@ ecvtf
 _ecvtf = ecvtf
 endgrent
 _endgrent = endgrent
+endutent
+_endutent = endutent
 erf
 _erf = erf
 erfc
@@ -376,6 +378,12 @@ gettimeofday
 _gettimeofday = gettimeofday
 getuid
 _getuid = getuid
+getutent
+_getutent = getutent
+getutid
+_getutid = getutid
+getutline
+_getutline = getutline
 glob
 _glob = glob
 globfree
@@ -660,6 +668,8 @@ setegid
 _setegid = setegid
 setuid
 _setuid = setuid
+setutent
+_setutent = setutent
 chroot
 _chroot = chroot
 setvbuf
@@ -868,6 +878,8 @@ utime
 _utime = utime
 utimes
 _utimes = utimes
+utmpname
+_utmpname = utmpname
 vfiprintf
 _vfiprintf = vfiprintf
 vfork

winsup/cygwin/include/cygwin/version.h

@@ -146,12 +146,13 @@ details. */
        46: Remove cygwin_getshared
        47: Report EOTWarningZoneSize in struct mtget.
        48: Export "posix" regex functions
+       49: Export setutent, endutent, utmpname, getutent, getutid, getutline.
      */
 
      /* Note that we forgot to bump the api for ualarm, strtoll, strtoull */
 
 #define CYGWIN_VERSION_API_MAJOR 0
-#define CYGWIN_VERSION_API_MINOR 48
+#define CYGWIN_VERSION_API_MINOR 49
 
      /* There is also a compatibity version number associated with the
 	shared memory regions.  It is incremented when incompatible

winsup/cygwin/syscalls.cc

@@ -2407,3 +2407,101 @@ logout (char *line)
 
   return res;
 }
+
+static int utmp_fd = -2;
+static char *utmp_file = (char *) _PATH_UTMP;
+
+static struct utmp utmp_data;
+
+extern "C" void
+setutent ()
+{
+  sigframe thisframe (mainthread);
+  if (utmp_fd == -2)
+    {
+      utmp_fd = _open (utmp_file, O_RDONLY);
+    }
+  _lseek (utmp_fd, 0, SEEK_SET);
+}
+
+extern "C" void
+endutent ()
+{
+  sigframe thisframe (mainthread);
+  _close (utmp_fd);
+  utmp_fd = -2;
+}
+
+extern "C" void
+utmpname (_CONST char *file)
+{
+  sigframe thisframe (mainthread);
+  if (check_null_empty_str (file))
+    {
+      debug_printf ("Invalid file");
+      return;
+    }
+  utmp_file = strdup (file);
+  debug_printf ("New UTMP file: %s", utmp_file);
+}
+
+extern "C" struct utmp *
+getutent ()
+{
+  sigframe thisframe (mainthread);
+  if (utmp_fd == -2)
+    setutent ();
+  if (_read (utmp_fd, &utmp_data, sizeof (utmp_data)) != sizeof (utmp_data))
+    return NULL;
+  return &utmp_data;
+}
+
+extern "C" struct utmp *
+getutid (struct utmp *id)
+{
+  sigframe thisframe (mainthread);
+  if (check_null_invalid_struct_errno (id))
+    return NULL;
+  while (_read (utmp_fd, &utmp_data, sizeof (utmp_data)) == sizeof (utmp_data))
+    {
+      switch (id->ut_type)
+	{
+#if 0 /* Not available in Cygwin. */
+	case RUN_LVL:
+	case BOOT_TIME:
+	case OLD_TIME:
+	case NEW_TIME:
+	  if (id->ut_type == utmp_data.ut_type)
+	    return &utmp_data;
+	  break;
+#endif
+	case INIT_PROCESS:
+	case LOGIN_PROCESS:
+	case USER_PROCESS:
+	case DEAD_PROCESS:
+	  if (id->ut_id == utmp_data.ut_id)
+	    return &utmp_data;
+	  break;
+	default:
+	  return NULL;
+	}
+    }
+  return NULL;
+}
+
+extern "C" struct utmp *
+getutline (struct utmp *line)
+{
+  sigframe thisframe (mainthread);
+  if (check_null_invalid_struct_errno (line))
+    return NULL;
+  while (_read (utmp_fd, &utmp_data, sizeof (utmp_data)) == sizeof (utmp_data))
+    {
+      if ((utmp_data.ut_type == LOGIN_PROCESS ||
+	   utmp_data.ut_type == USER_PROCESS) &&
+	  !strncmp (utmp_data.ut_line, line->ut_line,
+		    sizeof (utmp_data.ut_line)))
+	return &utmp_data;
+    }
+  return NULL;
+}