* cygwin.din: Add fchdir symbols.

* path.cc (chdir): Guard against invalid parameter.
         (fchdir): New function.
         * include/cygwin/version.h: Bump API minor version to 40.
         * uinfo.cc (internal_getlogin): Remove unused variable.

winsup/cygwin/ChangeLog

@@ -1,3 +1,11 @@
+Sun Jun 10 11:56:00 2001  Corinna Vinschen <corinna@vinschen.de>
+
+	 * cygwin.din: Add fchdir symbols.
+	 * path.cc (chdir): Guard against invalid parameter.
+	 (fchdir): New function.
+	 * include/cygwin/version.h: Bump API minor version to 40.
+	 * uinfo.cc (internal_getlogin): Remove unused variable.
+
 Sat Jun  9 23:20:00 2001  Corinna Vinschen <corinna@vinschen.de>
 
 	* syscalls.cc (seteuid): Set environment variables USERNAME and

winsup/cygwin/cygwin.din

@@ -191,6 +191,8 @@ _f_atan2
 __f_atan2 = _f_atan2
 _f_atan2f
 __f_atan2f = _f_atan2f
+fchdir
+_fchdir = fchdir
 fchmod
 _fchmod = fchmod
 fchown

winsup/cygwin/include/cygwin/version.h

@@ -133,10 +133,11 @@ details. */
        37: [f]pathconv support _PC_POSIX_PERMISSIONS and _PC_POSIX_SECURITY
        38: vscanf, vscanf_r, and random pthread functions
        39: asctime_r, ctime_r, gmtime_r, localtime_r
+       40: fchdir
      */
 
 #define CYGWIN_VERSION_API_MAJOR 0
-#define CYGWIN_VERSION_API_MINOR 39
+#define CYGWIN_VERSION_API_MINOR 40
 
      /* There is also a compatibity version number associated with the
 	shared memory regions.  It is incremented when incompatible

winsup/cygwin/path.cc

@@ -2994,8 +2994,14 @@ int
 chdir (const char *dir)
 {
   MALLOC_CHECK;
-  syscall_printf ("dir %s", dir);
   path_conv path (dir, PC_FULL | PC_SYM_FOLLOW);
+  if (path.error)
+    {
+      set_errno (path.error);
+      syscall_printf ("-1 = chdir (%s)", dir);
+      return -1;
+    }
+  syscall_printf ("dir %s", dir);
 
   char *s;
   /* Incredibly. Windows allows you to specify a path with trailing
@@ -3005,13 +3011,6 @@ chdir (const char *dir)
   for (s = strchr (dir, '\0'); --s >= dir && isspace ((unsigned int) (*s & 0xff)); )
     *s = '\0';
 
-  if (path.error)
-    {
-      set_errno (path.error);
-      syscall_printf ("-1 = chdir (%s)", dir);
-      return -1;
-    }
-
   /* Look for trailing path component consisting entirely of dots.  This
      is needed only in case of chdir since Windows simply ignores count
      of dots > 2 here instead of returning an error code.  Counts of dots
@@ -3068,6 +3067,23 @@ chdir (const char *dir)
   return res;
 }
 
+extern "C"
+int
+fchdir (int fd)
+{
+  sigframe thisframe (mainthread);
+
+  if (cygheap->fdtab.not_open (fd))
+    {
+      syscall_printf ("-1 = fchdir (%d)", fd);
+      set_errno (EBADF);
+      return -1;
+    }
+  int ret = chdir (cygheap->fdtab[fd]->get_name ());
+  syscall_printf ("%d = fchdir (%d)", ret, fd);
+  return ret;
+}
+
 /******************** Exported Path Routines *********************/
 
 /* Cover functions to the path conversion routines.

winsup/cygwin/uinfo.cc

@@ -153,7 +153,6 @@ internal_getlogin (cygheap_user &user)
 	  cygsid gsid (NO_SID);
 	  if (ret)
 	    {
-	      char dom[INTERNET_MAX_HOST_NAME_LENGTH + 1];
 	      cygsid psid;
 
 	      for (int pidx = 0; (pw = internal_getpwent (pidx)); ++pidx)