Generated code for mknod, mkfifo, mknod_b, mknod_c, umask.

[libguestfs.git] / ruby / ext / guestfs / _guestfs.c

diff --git a/ruby/ext/guestfs/_guestfs.c b/ruby/ext/guestfs/_guestfs.c
index bcb6fef..606e9a2 100644 (file)
--- a/ruby/ext/guestfs/_guestfs.c
+++ b/ruby/ext/guestfs/_guestfs.c
@@ -78,12 +78,15 @@ static VALUE ruby_guestfs_test0 (VALUE gv, VALUE strv, VALUE optstrv, VALUE strl
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "test0");
 
+  Check_Type (strv, T_STRING);
   const char *str = StringValueCStr (strv);
   if (!str)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "str", "test0");
   const char *optstr = !NIL_P (optstrv) ? StringValueCStr (optstrv) : NULL;
-  char **strlist;  {
+  char **strlist;
+  Check_Type (strlistv, T_ARRAY);
+  {
     int i, len;
     len = RARRAY_LEN (strlistv);
     strlist = guestfs_safe_malloc (g, sizeof (char *) * (len+1));
@@ -95,10 +98,12 @@ static VALUE ruby_guestfs_test0 (VALUE gv, VALUE strv, VALUE optstrv, VALUE strl
   }
   int b = RTEST (bv);
   int integer = NUM2INT (integerv);
+  Check_Type (fileinv, T_STRING);
   const char *filein = StringValueCStr (fileinv);
   if (!filein)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "filein", "test0");
+  Check_Type (fileoutv, T_STRING);
   const char *fileout = StringValueCStr (fileoutv);
   if (!fileout)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -121,6 +126,7 @@ static VALUE ruby_guestfs_test0rint (VALUE gv, VALUE valv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "test0rint");
 
+  Check_Type (valv, T_STRING);
   const char *val = StringValueCStr (valv);
   if (!val)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -159,6 +165,7 @@ static VALUE ruby_guestfs_test0rint64 (VALUE gv, VALUE valv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "test0rint64");
 
+  Check_Type (valv, T_STRING);
   const char *val = StringValueCStr (valv);
   if (!val)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -197,6 +204,7 @@ static VALUE ruby_guestfs_test0rbool (VALUE gv, VALUE valv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "test0rbool");
 
+  Check_Type (valv, T_STRING);
   const char *val = StringValueCStr (valv);
   if (!val)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -235,6 +243,7 @@ static VALUE ruby_guestfs_test0rconststring (VALUE gv, VALUE valv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "test0rconststring");
 
+  Check_Type (valv, T_STRING);
   const char *val = StringValueCStr (valv);
   if (!val)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -273,6 +282,7 @@ static VALUE ruby_guestfs_test0rstring (VALUE gv, VALUE valv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "test0rstring");
 
+  Check_Type (valv, T_STRING);
   const char *val = StringValueCStr (valv);
   if (!val)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -315,6 +325,7 @@ static VALUE ruby_guestfs_test0rstringlist (VALUE gv, VALUE valv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "test0rstringlist");
 
+  Check_Type (valv, T_STRING);
   const char *val = StringValueCStr (valv);
   if (!val)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -369,6 +380,7 @@ static VALUE ruby_guestfs_test0rintbool (VALUE gv, VALUE valv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "test0rintbool");
 
+  Check_Type (valv, T_STRING);
   const char *val = StringValueCStr (valv);
   if (!val)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -415,6 +427,7 @@ static VALUE ruby_guestfs_test0rpvlist (VALUE gv, VALUE valv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "test0rpvlist");
 
+  Check_Type (valv, T_STRING);
   const char *val = StringValueCStr (valv);
   if (!val)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -495,6 +508,7 @@ static VALUE ruby_guestfs_test0rvglist (VALUE gv, VALUE valv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "test0rvglist");
 
+  Check_Type (valv, T_STRING);
   const char *val = StringValueCStr (valv);
   if (!val)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -585,6 +599,7 @@ static VALUE ruby_guestfs_test0rlvlist (VALUE gv, VALUE valv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "test0rlvlist");
 
+  Check_Type (valv, T_STRING);
   const char *val = StringValueCStr (valv);
   if (!val)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -669,6 +684,7 @@ static VALUE ruby_guestfs_test0rstat (VALUE gv, VALUE valv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "test0rstat");
 
+  Check_Type (valv, T_STRING);
   const char *val = StringValueCStr (valv);
   if (!val)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -737,6 +753,7 @@ static VALUE ruby_guestfs_test0rstatvfs (VALUE gv, VALUE valv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "test0rstatvfs");
 
+  Check_Type (valv, T_STRING);
   const char *val = StringValueCStr (valv);
   if (!val)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -801,6 +818,7 @@ static VALUE ruby_guestfs_test0rhashtable (VALUE gv, VALUE valv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "test0rhashtable");
 
+  Check_Type (valv, T_STRING);
   const char *val = StringValueCStr (valv);
   if (!val)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -906,6 +924,7 @@ static VALUE ruby_guestfs_add_drive (VALUE gv, VALUE filenamev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "add_drive");
 
+  Check_Type (filenamev, T_STRING);
   const char *filename = StringValueCStr (filenamev);
   if (!filename)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -927,6 +946,7 @@ static VALUE ruby_guestfs_add_cdrom (VALUE gv, VALUE filenamev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "add_cdrom");
 
+  Check_Type (filenamev, T_STRING);
   const char *filename = StringValueCStr (filenamev);
   if (!filename)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -948,6 +968,7 @@ static VALUE ruby_guestfs_add_drive_ro (VALUE gv, VALUE filenamev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "add_drive_ro");
 
+  Check_Type (filenamev, T_STRING);
   const char *filename = StringValueCStr (filenamev);
   if (!filename)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -969,6 +990,7 @@ static VALUE ruby_guestfs_config (VALUE gv, VALUE qemuparamv, VALUE qemuvaluev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "config");
 
+  Check_Type (qemuparamv, T_STRING);
   const char *qemuparam = StringValueCStr (qemuparamv);
   if (!qemuparam)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -991,6 +1013,7 @@ static VALUE ruby_guestfs_set_qemu (VALUE gv, VALUE qemuv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "set_qemu");
 
+  Check_Type (qemuv, T_STRING);
   const char *qemu = StringValueCStr (qemuv);
   if (!qemu)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1029,6 +1052,7 @@ static VALUE ruby_guestfs_set_path (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "set_path");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1067,6 +1091,7 @@ static VALUE ruby_guestfs_set_append (VALUE gv, VALUE appendv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "set_append");
 
+  Check_Type (appendv, T_STRING);
   const char *append = StringValueCStr (appendv);
   if (!append)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1304,6 +1329,41 @@ static VALUE ruby_guestfs_end_busy (VALUE gv)
   return Qnil;
 }
 
+static VALUE ruby_guestfs_set_memsize (VALUE gv, VALUE memsizev)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "set_memsize");
+
+  int memsize = NUM2INT (memsizev);
+
+  int r;
+
+  r = guestfs_set_memsize (g, memsize);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return Qnil;
+}
+
+static VALUE ruby_guestfs_get_memsize (VALUE gv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "get_memsize");
+
+
+  int r;
+
+  r = guestfs_get_memsize (g);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return INT2NUM (r);
+}
+
 static VALUE ruby_guestfs_mount (VALUE gv, VALUE devicev, VALUE mountpointv)
 {
   guestfs_h *g;
@@ -1311,10 +1371,12 @@ static VALUE ruby_guestfs_mount (VALUE gv, VALUE devicev, VALUE mountpointv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "mount");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "device", "mount");
+  Check_Type (mountpointv, T_STRING);
   const char *mountpoint = StringValueCStr (mountpointv);
   if (!mountpoint)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1353,6 +1415,7 @@ static VALUE ruby_guestfs_touch (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "touch");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1374,6 +1437,7 @@ static VALUE ruby_guestfs_cat (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "cat");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1397,6 +1461,7 @@ static VALUE ruby_guestfs_ll (VALUE gv, VALUE directoryv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "ll");
 
+  Check_Type (directoryv, T_STRING);
   const char *directory = StringValueCStr (directoryv);
   if (!directory)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1420,6 +1485,7 @@ static VALUE ruby_guestfs_ls (VALUE gv, VALUE directoryv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "ls");
 
+  Check_Type (directoryv, T_STRING);
   const char *directory = StringValueCStr (directoryv);
   if (!directory)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1695,6 +1761,7 @@ static VALUE ruby_guestfs_read_lines (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "read_lines");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1724,6 +1791,7 @@ static VALUE ruby_guestfs_aug_init (VALUE gv, VALUE rootv, VALUE flagsv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "aug_init");
 
+  Check_Type (rootv, T_STRING);
   const char *root = StringValueCStr (rootv);
   if (!root)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1763,6 +1831,7 @@ static VALUE ruby_guestfs_aug_defvar (VALUE gv, VALUE namev, VALUE exprv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "aug_defvar");
 
+  Check_Type (namev, T_STRING);
   const char *name = StringValueCStr (namev);
   if (!name)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1785,14 +1854,17 @@ static VALUE ruby_guestfs_aug_defnode (VALUE gv, VALUE namev, VALUE exprv, VALUE
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "aug_defnode");
 
+  Check_Type (namev, T_STRING);
   const char *name = StringValueCStr (namev);
   if (!name)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "name", "aug_defnode");
+  Check_Type (exprv, T_STRING);
   const char *expr = StringValueCStr (exprv);
   if (!expr)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "expr", "aug_defnode");
+  Check_Type (valv, T_STRING);
   const char *val = StringValueCStr (valv);
   if (!val)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1818,6 +1890,7 @@ static VALUE ruby_guestfs_aug_get (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "aug_get");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1841,10 +1914,12 @@ static VALUE ruby_guestfs_aug_set (VALUE gv, VALUE pathv, VALUE valv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "aug_set");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "path", "aug_set");
+  Check_Type (valv, T_STRING);
   const char *val = StringValueCStr (valv);
   if (!val)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1866,10 +1941,12 @@ static VALUE ruby_guestfs_aug_insert (VALUE gv, VALUE pathv, VALUE labelv, VALUE
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "aug_insert");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "path", "aug_insert");
+  Check_Type (labelv, T_STRING);
   const char *label = StringValueCStr (labelv);
   if (!label)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1892,6 +1969,7 @@ static VALUE ruby_guestfs_aug_rm (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "aug_rm");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1913,10 +1991,12 @@ static VALUE ruby_guestfs_aug_mv (VALUE gv, VALUE srcv, VALUE destv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "aug_mv");
 
+  Check_Type (srcv, T_STRING);
   const char *src = StringValueCStr (srcv);
   if (!src)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "src", "aug_mv");
+  Check_Type (destv, T_STRING);
   const char *dest = StringValueCStr (destv);
   if (!dest)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -1938,6 +2018,7 @@ static VALUE ruby_guestfs_aug_match (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "aug_match");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2001,6 +2082,7 @@ static VALUE ruby_guestfs_aug_ls (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "aug_ls");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2030,6 +2112,7 @@ static VALUE ruby_guestfs_rm (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "rm");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2051,6 +2134,7 @@ static VALUE ruby_guestfs_rmdir (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "rmdir");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2072,6 +2156,7 @@ static VALUE ruby_guestfs_rm_rf (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "rm_rf");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2093,6 +2178,7 @@ static VALUE ruby_guestfs_mkdir (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "mkdir");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2114,6 +2200,7 @@ static VALUE ruby_guestfs_mkdir_p (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "mkdir_p");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2136,6 +2223,7 @@ static VALUE ruby_guestfs_chmod (VALUE gv, VALUE modev, VALUE pathv)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "chmod");
 
   int mode = NUM2INT (modev);
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2159,6 +2247,7 @@ static VALUE ruby_guestfs_chown (VALUE gv, VALUE ownerv, VALUE groupv, VALUE pat
 
   int owner = NUM2INT (ownerv);
   int group = NUM2INT (groupv);
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2180,6 +2269,7 @@ static VALUE ruby_guestfs_exists (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "exists");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2201,6 +2291,7 @@ static VALUE ruby_guestfs_is_file (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "is_file");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2222,6 +2313,7 @@ static VALUE ruby_guestfs_is_dir (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "is_dir");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2243,6 +2335,7 @@ static VALUE ruby_guestfs_pvcreate (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "pvcreate");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2264,11 +2357,14 @@ static VALUE ruby_guestfs_vgcreate (VALUE gv, VALUE volgroupv, VALUE physvolsv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "vgcreate");
 
+  Check_Type (volgroupv, T_STRING);
   const char *volgroup = StringValueCStr (volgroupv);
   if (!volgroup)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "volgroup", "vgcreate");
-  char **physvols;  {
+  char **physvols;
+  Check_Type (physvolsv, T_ARRAY);
+  {
     int i, len;
     len = RARRAY_LEN (physvolsv);
     physvols = guestfs_safe_malloc (g, sizeof (char *) * (len+1));
@@ -2296,10 +2392,12 @@ static VALUE ruby_guestfs_lvcreate (VALUE gv, VALUE logvolv, VALUE volgroupv, VA
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "lvcreate");
 
+  Check_Type (logvolv, T_STRING);
   const char *logvol = StringValueCStr (logvolv);
   if (!logvol)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "logvol", "lvcreate");
+  Check_Type (volgroupv, T_STRING);
   const char *volgroup = StringValueCStr (volgroupv);
   if (!volgroup)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2322,10 +2420,12 @@ static VALUE ruby_guestfs_mkfs (VALUE gv, VALUE fstypev, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "mkfs");
 
+  Check_Type (fstypev, T_STRING);
   const char *fstype = StringValueCStr (fstypev);
   if (!fstype)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "fstype", "mkfs");
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2347,6 +2447,7 @@ static VALUE ruby_guestfs_sfdisk (VALUE gv, VALUE devicev, VALUE cylsv, VALUE he
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "sfdisk");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2354,7 +2455,9 @@ static VALUE ruby_guestfs_sfdisk (VALUE gv, VALUE devicev, VALUE cylsv, VALUE he
   int cyls = NUM2INT (cylsv);
   int heads = NUM2INT (headsv);
   int sectors = NUM2INT (sectorsv);
-  char **lines;  {
+  char **lines;
+  Check_Type (linesv, T_ARRAY);
+  {
     int i, len;
     len = RARRAY_LEN (linesv);
     lines = guestfs_safe_malloc (g, sizeof (char *) * (len+1));
@@ -2382,10 +2485,12 @@ static VALUE ruby_guestfs_write_file (VALUE gv, VALUE pathv, VALUE contentv, VAL
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "write_file");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "path", "write_file");
+  Check_Type (contentv, T_STRING);
   const char *content = StringValueCStr (contentv);
   if (!content)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2408,6 +2513,7 @@ static VALUE ruby_guestfs_umount (VALUE gv, VALUE pathordevicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "umount");
 
+  Check_Type (pathordevicev, T_STRING);
   const char *pathordevice = StringValueCStr (pathordevicev);
   if (!pathordevice)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2488,6 +2594,7 @@ static VALUE ruby_guestfs_file (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "file");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2511,7 +2618,9 @@ static VALUE ruby_guestfs_command (VALUE gv, VALUE argumentsv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "command");
 
-  char **arguments;  {
+  char **arguments;
+  Check_Type (argumentsv, T_ARRAY);
+  {
     int i, len;
     len = RARRAY_LEN (argumentsv);
     arguments = guestfs_safe_malloc (g, sizeof (char *) * (len+1));
@@ -2541,7 +2650,9 @@ static VALUE ruby_guestfs_command_lines (VALUE gv, VALUE argumentsv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "command_lines");
 
-  char **arguments;  {
+  char **arguments;
+  Check_Type (argumentsv, T_ARRAY);
+  {
     int i, len;
     len = RARRAY_LEN (argumentsv);
     arguments = guestfs_safe_malloc (g, sizeof (char *) * (len+1));
@@ -2577,6 +2688,7 @@ static VALUE ruby_guestfs_stat (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "stat");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2613,6 +2725,7 @@ static VALUE ruby_guestfs_lstat (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "lstat");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2649,6 +2762,7 @@ static VALUE ruby_guestfs_statvfs (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "statvfs");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2683,6 +2797,7 @@ static VALUE ruby_guestfs_tune2fs_l (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "tune2fs_l");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2712,6 +2827,7 @@ static VALUE ruby_guestfs_blockdev_setro (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "blockdev_setro");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2733,6 +2849,7 @@ static VALUE ruby_guestfs_blockdev_setrw (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "blockdev_setrw");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2754,6 +2871,7 @@ static VALUE ruby_guestfs_blockdev_getro (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "blockdev_getro");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2775,6 +2893,7 @@ static VALUE ruby_guestfs_blockdev_getss (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "blockdev_getss");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2796,6 +2915,7 @@ static VALUE ruby_guestfs_blockdev_getbsz (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "blockdev_getbsz");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2817,6 +2937,7 @@ static VALUE ruby_guestfs_blockdev_setbsz (VALUE gv, VALUE devicev, VALUE blocks
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "blockdev_setbsz");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2839,6 +2960,7 @@ static VALUE ruby_guestfs_blockdev_getsz (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "blockdev_getsz");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2860,6 +2982,7 @@ static VALUE ruby_guestfs_blockdev_getsize64 (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "blockdev_getsize64");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2881,6 +3004,7 @@ static VALUE ruby_guestfs_blockdev_flushbufs (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "blockdev_flushbufs");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2902,6 +3026,7 @@ static VALUE ruby_guestfs_blockdev_rereadpt (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "blockdev_rereadpt");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2923,10 +3048,12 @@ static VALUE ruby_guestfs_upload (VALUE gv, VALUE filenamev, VALUE remotefilenam
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "upload");
 
+  Check_Type (filenamev, T_STRING);
   const char *filename = StringValueCStr (filenamev);
   if (!filename)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "filename", "upload");
+  Check_Type (remotefilenamev, T_STRING);
   const char *remotefilename = StringValueCStr (remotefilenamev);
   if (!remotefilename)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2948,10 +3075,12 @@ static VALUE ruby_guestfs_download (VALUE gv, VALUE remotefilenamev, VALUE filen
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "download");
 
+  Check_Type (remotefilenamev, T_STRING);
   const char *remotefilename = StringValueCStr (remotefilenamev);
   if (!remotefilename)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "remotefilename", "download");
+  Check_Type (filenamev, T_STRING);
   const char *filename = StringValueCStr (filenamev);
   if (!filename)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -2973,10 +3102,12 @@ static VALUE ruby_guestfs_checksum (VALUE gv, VALUE csumtypev, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "checksum");
 
+  Check_Type (csumtypev, T_STRING);
   const char *csumtype = StringValueCStr (csumtypev);
   if (!csumtype)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "csumtype", "checksum");
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3000,10 +3131,12 @@ static VALUE ruby_guestfs_tar_in (VALUE gv, VALUE tarfilev, VALUE directoryv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "tar_in");
 
+  Check_Type (tarfilev, T_STRING);
   const char *tarfile = StringValueCStr (tarfilev);
   if (!tarfile)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "tarfile", "tar_in");
+  Check_Type (directoryv, T_STRING);
   const char *directory = StringValueCStr (directoryv);
   if (!directory)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3025,10 +3158,12 @@ static VALUE ruby_guestfs_tar_out (VALUE gv, VALUE directoryv, VALUE tarfilev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "tar_out");
 
+  Check_Type (directoryv, T_STRING);
   const char *directory = StringValueCStr (directoryv);
   if (!directory)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "directory", "tar_out");
+  Check_Type (tarfilev, T_STRING);
   const char *tarfile = StringValueCStr (tarfilev);
   if (!tarfile)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3050,10 +3185,12 @@ static VALUE ruby_guestfs_tgz_in (VALUE gv, VALUE tarballv, VALUE directoryv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "tgz_in");
 
+  Check_Type (tarballv, T_STRING);
   const char *tarball = StringValueCStr (tarballv);
   if (!tarball)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "tarball", "tgz_in");
+  Check_Type (directoryv, T_STRING);
   const char *directory = StringValueCStr (directoryv);
   if (!directory)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3075,10 +3212,12 @@ static VALUE ruby_guestfs_tgz_out (VALUE gv, VALUE directoryv, VALUE tarballv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "tgz_out");
 
+  Check_Type (directoryv, T_STRING);
   const char *directory = StringValueCStr (directoryv);
   if (!directory)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "directory", "tgz_out");
+  Check_Type (tarballv, T_STRING);
   const char *tarball = StringValueCStr (tarballv);
   if (!tarball)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3100,10 +3239,12 @@ static VALUE ruby_guestfs_mount_ro (VALUE gv, VALUE devicev, VALUE mountpointv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "mount_ro");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "device", "mount_ro");
+  Check_Type (mountpointv, T_STRING);
   const char *mountpoint = StringValueCStr (mountpointv);
   if (!mountpoint)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3125,14 +3266,17 @@ static VALUE ruby_guestfs_mount_options (VALUE gv, VALUE optionsv, VALUE devicev
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "mount_options");
 
+  Check_Type (optionsv, T_STRING);
   const char *options = StringValueCStr (optionsv);
   if (!options)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "options", "mount_options");
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "device", "mount_options");
+  Check_Type (mountpointv, T_STRING);
   const char *mountpoint = StringValueCStr (mountpointv);
   if (!mountpoint)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3154,18 +3298,22 @@ static VALUE ruby_guestfs_mount_vfs (VALUE gv, VALUE optionsv, VALUE vfstypev, V
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "mount_vfs");
 
+  Check_Type (optionsv, T_STRING);
   const char *options = StringValueCStr (optionsv);
   if (!options)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "options", "mount_vfs");
+  Check_Type (vfstypev, T_STRING);
   const char *vfstype = StringValueCStr (vfstypev);
   if (!vfstype)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "vfstype", "mount_vfs");
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "device", "mount_vfs");
+  Check_Type (mountpointv, T_STRING);
   const char *mountpoint = StringValueCStr (mountpointv);
   if (!mountpoint)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3187,11 +3335,14 @@ static VALUE ruby_guestfs_debug (VALUE gv, VALUE subcmdv, VALUE extraargsv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "debug");
 
+  Check_Type (subcmdv, T_STRING);
   const char *subcmd = StringValueCStr (subcmdv);
   if (!subcmd)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "subcmd", "debug");
-  char **extraargs;  {
+  char **extraargs;
+  Check_Type (extraargsv, T_ARRAY);
+  {
     int i, len;
     len = RARRAY_LEN (extraargsv);
     extraargs = guestfs_safe_malloc (g, sizeof (char *) * (len+1));
@@ -3221,6 +3372,7 @@ static VALUE ruby_guestfs_lvremove (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "lvremove");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3242,6 +3394,7 @@ static VALUE ruby_guestfs_vgremove (VALUE gv, VALUE vgnamev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "vgremove");
 
+  Check_Type (vgnamev, T_STRING);
   const char *vgname = StringValueCStr (vgnamev);
   if (!vgname)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3263,6 +3416,7 @@ static VALUE ruby_guestfs_pvremove (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "pvremove");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3284,10 +3438,12 @@ static VALUE ruby_guestfs_set_e2label (VALUE gv, VALUE devicev, VALUE labelv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "set_e2label");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "device", "set_e2label");
+  Check_Type (labelv, T_STRING);
   const char *label = StringValueCStr (labelv);
   if (!label)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3309,6 +3465,7 @@ static VALUE ruby_guestfs_get_e2label (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "get_e2label");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3332,10 +3489,12 @@ static VALUE ruby_guestfs_set_e2uuid (VALUE gv, VALUE devicev, VALUE uuidv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "set_e2uuid");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "device", "set_e2uuid");
+  Check_Type (uuidv, T_STRING);
   const char *uuid = StringValueCStr (uuidv);
   if (!uuid)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3357,6 +3516,7 @@ static VALUE ruby_guestfs_get_e2uuid (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "get_e2uuid");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3380,10 +3540,12 @@ static VALUE ruby_guestfs_fsck (VALUE gv, VALUE fstypev, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "fsck");
 
+  Check_Type (fstypev, T_STRING);
   const char *fstype = StringValueCStr (fstypev);
   if (!fstype)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "fstype", "fsck");
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3405,6 +3567,7 @@ static VALUE ruby_guestfs_zero (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "zero");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3426,10 +3589,12 @@ static VALUE ruby_guestfs_grub_install (VALUE gv, VALUE rootv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "grub_install");
 
+  Check_Type (rootv, T_STRING);
   const char *root = StringValueCStr (rootv);
   if (!root)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "root", "grub_install");
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3451,10 +3616,12 @@ static VALUE ruby_guestfs_cp (VALUE gv, VALUE srcv, VALUE destv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "cp");
 
+  Check_Type (srcv, T_STRING);
   const char *src = StringValueCStr (srcv);
   if (!src)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "src", "cp");
+  Check_Type (destv, T_STRING);
   const char *dest = StringValueCStr (destv);
   if (!dest)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3476,10 +3643,12 @@ static VALUE ruby_guestfs_cp_a (VALUE gv, VALUE srcv, VALUE destv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "cp_a");
 
+  Check_Type (srcv, T_STRING);
   const char *src = StringValueCStr (srcv);
   if (!src)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "src", "cp_a");
+  Check_Type (destv, T_STRING);
   const char *dest = StringValueCStr (destv);
   if (!dest)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3501,10 +3670,12 @@ static VALUE ruby_guestfs_mv (VALUE gv, VALUE srcv, VALUE destv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "mv");
 
+  Check_Type (srcv, T_STRING);
   const char *src = StringValueCStr (srcv);
   if (!src)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "src", "mv");
+  Check_Type (destv, T_STRING);
   const char *dest = StringValueCStr (destv);
   if (!dest)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3580,10 +3751,12 @@ static VALUE ruby_guestfs_equal (VALUE gv, VALUE file1v, VALUE file2v)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "equal");
 
+  Check_Type (file1v, T_STRING);
   const char *file1 = StringValueCStr (file1v);
   if (!file1)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "file1", "equal");
+  Check_Type (file2v, T_STRING);
   const char *file2 = StringValueCStr (file2v);
   if (!file2)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3605,6 +3778,7 @@ static VALUE ruby_guestfs_strings (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "strings");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3634,10 +3808,12 @@ static VALUE ruby_guestfs_strings_e (VALUE gv, VALUE encodingv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "strings_e");
 
+  Check_Type (encodingv, T_STRING);
   const char *encoding = StringValueCStr (encodingv);
   if (!encoding)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "encoding", "strings_e");
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3667,6 +3843,7 @@ static VALUE ruby_guestfs_hexdump (VALUE gv, VALUE pathv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "hexdump");
 
+  Check_Type (pathv, T_STRING);
   const char *path = StringValueCStr (pathv);
   if (!path)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3690,6 +3867,7 @@ static VALUE ruby_guestfs_zerofree (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "zerofree");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3711,6 +3889,7 @@ static VALUE ruby_guestfs_pvresize (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "pvresize");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3725,21 +3904,23 @@ static VALUE ruby_guestfs_pvresize (VALUE gv, VALUE devicev)
   return Qnil;
 }
 
-static VALUE ruby_guestfs_sfdisk_N (VALUE gv, VALUE devicev, VALUE nv, VALUE cylsv, VALUE headsv, VALUE sectorsv, VALUE linev)
+static VALUE ruby_guestfs_sfdisk_N (VALUE gv, VALUE devicev, VALUE partnumv, VALUE cylsv, VALUE headsv, VALUE sectorsv, VALUE linev)
 {
   guestfs_h *g;
   Data_Get_Struct (gv, guestfs_h, g);
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "sfdisk_N");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
               "device", "sfdisk_N");
-  int n = NUM2INT (nv);
+  int partnum = NUM2INT (partnumv);
   int cyls = NUM2INT (cylsv);
   int heads = NUM2INT (headsv);
   int sectors = NUM2INT (sectorsv);
+  Check_Type (linev, T_STRING);
   const char *line = StringValueCStr (linev);
   if (!line)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3747,7 +3928,7 @@ static VALUE ruby_guestfs_sfdisk_N (VALUE gv, VALUE devicev, VALUE nv, VALUE cyl
 
   int r;
 
-  r = guestfs_sfdisk_N (g, device, n, cyls, heads, sectors, line);
+  r = guestfs_sfdisk_N (g, device, partnum, cyls, heads, sectors, line);
   if (r == -1)
     rb_raise (e_Error, "%s", guestfs_last_error (g));
 
@@ -3761,6 +3942,7 @@ static VALUE ruby_guestfs_sfdisk_l (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "sfdisk_l");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3784,6 +3966,7 @@ static VALUE ruby_guestfs_sfdisk_kernel_geometry (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "sfdisk_kernel_geometry");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3807,6 +3990,7 @@ static VALUE ruby_guestfs_sfdisk_disk_geometry (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "sfdisk_disk_geometry");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3849,7 +4033,9 @@ static VALUE ruby_guestfs_vg_activate (VALUE gv, VALUE activatev, VALUE volgroup
     rb_raise (rb_eArgError, "%s: used handle after closing it", "vg_activate");
 
   int activate = RTEST (activatev);
-  char **volgroups;  {
+  char **volgroups;
+  Check_Type (volgroupsv, T_ARRAY);
+  {
     int i, len;
     len = RARRAY_LEN (volgroupsv);
     volgroups = guestfs_safe_malloc (g, sizeof (char *) * (len+1));
@@ -3877,6 +4063,7 @@ static VALUE ruby_guestfs_lvresize (VALUE gv, VALUE devicev, VALUE mbytesv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "lvresize");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3899,6 +4086,7 @@ static VALUE ruby_guestfs_resize2fs (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "resize2fs");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3920,6 +4108,7 @@ static VALUE ruby_guestfs_find (VALUE gv, VALUE directoryv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "find");
 
+  Check_Type (directoryv, T_STRING);
   const char *directory = StringValueCStr (directoryv);
   if (!directory)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3949,6 +4138,7 @@ static VALUE ruby_guestfs_e2fsck_f (VALUE gv, VALUE devicev)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "e2fsck_f");
 
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -3989,6 +4179,7 @@ static VALUE ruby_guestfs_ntfs_3g_probe (VALUE gv, VALUE rwv, VALUE devicev)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "ntfs_3g_probe");
 
   int rw = RTEST (rwv);
+  Check_Type (devicev, T_STRING);
   const char *device = StringValueCStr (devicev);
   if (!device)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -4010,6 +4201,7 @@ static VALUE ruby_guestfs_sh (VALUE gv, VALUE commandv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "sh");
 
+  Check_Type (commandv, T_STRING);
   const char *command = StringValueCStr (commandv);
   if (!command)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -4033,6 +4225,7 @@ static VALUE ruby_guestfs_sh_lines (VALUE gv, VALUE commandv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "sh_lines");
 
+  Check_Type (commandv, T_STRING);
   const char *command = StringValueCStr (commandv);
   if (!command)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -4062,6 +4255,7 @@ static VALUE ruby_guestfs_glob_expand (VALUE gv, VALUE patternv)
   if (!g)
     rb_raise (rb_eArgError, "%s: used handle after closing it", "glob_expand");
 
+  Check_Type (patternv, T_STRING);
   const char *pattern = StringValueCStr (patternv);
   if (!pattern)
     rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
@@ -4084,6 +4278,593 @@ static VALUE ruby_guestfs_glob_expand (VALUE gv, VALUE patternv)
   return rv;
 }
 
+static VALUE ruby_guestfs_scrub_device (VALUE gv, VALUE devicev)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "scrub_device");
+
+  Check_Type (devicev, T_STRING);
+  const char *device = StringValueCStr (devicev);
+  if (!device)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "device", "scrub_device");
+
+  int r;
+
+  r = guestfs_scrub_device (g, device);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return Qnil;
+}
+
+static VALUE ruby_guestfs_scrub_file (VALUE gv, VALUE filev)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "scrub_file");
+
+  Check_Type (filev, T_STRING);
+  const char *file = StringValueCStr (filev);
+  if (!file)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "file", "scrub_file");
+
+  int r;
+
+  r = guestfs_scrub_file (g, file);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return Qnil;
+}
+
+static VALUE ruby_guestfs_scrub_freespace (VALUE gv, VALUE dirv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "scrub_freespace");
+
+  Check_Type (dirv, T_STRING);
+  const char *dir = StringValueCStr (dirv);
+  if (!dir)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "dir", "scrub_freespace");
+
+  int r;
+
+  r = guestfs_scrub_freespace (g, dir);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return Qnil;
+}
+
+static VALUE ruby_guestfs_mkdtemp (VALUE gv, VALUE templatev)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "mkdtemp");
+
+  Check_Type (templatev, T_STRING);
+  const char *template = StringValueCStr (templatev);
+  if (!template)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "template", "mkdtemp");
+
+  char *r;
+
+  r = guestfs_mkdtemp (g, template);
+  if (r == NULL)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  VALUE rv = rb_str_new2 (r);
+  free (r);
+  return rv;
+}
+
+static VALUE ruby_guestfs_wc_l (VALUE gv, VALUE pathv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "wc_l");
+
+  Check_Type (pathv, T_STRING);
+  const char *path = StringValueCStr (pathv);
+  if (!path)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "path", "wc_l");
+
+  int r;
+
+  r = guestfs_wc_l (g, path);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return INT2NUM (r);
+}
+
+static VALUE ruby_guestfs_wc_w (VALUE gv, VALUE pathv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "wc_w");
+
+  Check_Type (pathv, T_STRING);
+  const char *path = StringValueCStr (pathv);
+  if (!path)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "path", "wc_w");
+
+  int r;
+
+  r = guestfs_wc_w (g, path);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return INT2NUM (r);
+}
+
+static VALUE ruby_guestfs_wc_c (VALUE gv, VALUE pathv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "wc_c");
+
+  Check_Type (pathv, T_STRING);
+  const char *path = StringValueCStr (pathv);
+  if (!path)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "path", "wc_c");
+
+  int r;
+
+  r = guestfs_wc_c (g, path);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return INT2NUM (r);
+}
+
+static VALUE ruby_guestfs_head (VALUE gv, VALUE pathv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "head");
+
+  Check_Type (pathv, T_STRING);
+  const char *path = StringValueCStr (pathv);
+  if (!path)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "path", "head");
+
+  char **r;
+
+  r = guestfs_head (g, path);
+  if (r == NULL)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  int i, len = 0;
+  for (i = 0; r[i] != NULL; ++i) len++;
+  VALUE rv = rb_ary_new2 (len);
+  for (i = 0; r[i] != NULL; ++i) {
+    rb_ary_push (rv, rb_str_new2 (r[i]));
+    free (r[i]);
+  }
+  free (r);
+  return rv;
+}
+
+static VALUE ruby_guestfs_head_n (VALUE gv, VALUE nrlinesv, VALUE pathv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "head_n");
+
+  int nrlines = NUM2INT (nrlinesv);
+  Check_Type (pathv, T_STRING);
+  const char *path = StringValueCStr (pathv);
+  if (!path)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "path", "head_n");
+
+  char **r;
+
+  r = guestfs_head_n (g, nrlines, path);
+  if (r == NULL)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  int i, len = 0;
+  for (i = 0; r[i] != NULL; ++i) len++;
+  VALUE rv = rb_ary_new2 (len);
+  for (i = 0; r[i] != NULL; ++i) {
+    rb_ary_push (rv, rb_str_new2 (r[i]));
+    free (r[i]);
+  }
+  free (r);
+  return rv;
+}
+
+static VALUE ruby_guestfs_tail (VALUE gv, VALUE pathv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "tail");
+
+  Check_Type (pathv, T_STRING);
+  const char *path = StringValueCStr (pathv);
+  if (!path)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "path", "tail");
+
+  char **r;
+
+  r = guestfs_tail (g, path);
+  if (r == NULL)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  int i, len = 0;
+  for (i = 0; r[i] != NULL; ++i) len++;
+  VALUE rv = rb_ary_new2 (len);
+  for (i = 0; r[i] != NULL; ++i) {
+    rb_ary_push (rv, rb_str_new2 (r[i]));
+    free (r[i]);
+  }
+  free (r);
+  return rv;
+}
+
+static VALUE ruby_guestfs_tail_n (VALUE gv, VALUE nrlinesv, VALUE pathv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "tail_n");
+
+  int nrlines = NUM2INT (nrlinesv);
+  Check_Type (pathv, T_STRING);
+  const char *path = StringValueCStr (pathv);
+  if (!path)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "path", "tail_n");
+
+  char **r;
+
+  r = guestfs_tail_n (g, nrlines, path);
+  if (r == NULL)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  int i, len = 0;
+  for (i = 0; r[i] != NULL; ++i) len++;
+  VALUE rv = rb_ary_new2 (len);
+  for (i = 0; r[i] != NULL; ++i) {
+    rb_ary_push (rv, rb_str_new2 (r[i]));
+    free (r[i]);
+  }
+  free (r);
+  return rv;
+}
+
+static VALUE ruby_guestfs_df (VALUE gv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "df");
+
+
+  char *r;
+
+  r = guestfs_df (g);
+  if (r == NULL)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  VALUE rv = rb_str_new2 (r);
+  free (r);
+  return rv;
+}
+
+static VALUE ruby_guestfs_df_h (VALUE gv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "df_h");
+
+
+  char *r;
+
+  r = guestfs_df_h (g);
+  if (r == NULL)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  VALUE rv = rb_str_new2 (r);
+  free (r);
+  return rv;
+}
+
+static VALUE ruby_guestfs_du (VALUE gv, VALUE pathv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "du");
+
+  Check_Type (pathv, T_STRING);
+  const char *path = StringValueCStr (pathv);
+  if (!path)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "path", "du");
+
+  int64_t r;
+
+  r = guestfs_du (g, path);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return ULL2NUM (r);
+}
+
+static VALUE ruby_guestfs_initrd_list (VALUE gv, VALUE pathv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "initrd_list");
+
+  Check_Type (pathv, T_STRING);
+  const char *path = StringValueCStr (pathv);
+  if (!path)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "path", "initrd_list");
+
+  char **r;
+
+  r = guestfs_initrd_list (g, path);
+  if (r == NULL)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  int i, len = 0;
+  for (i = 0; r[i] != NULL; ++i) len++;
+  VALUE rv = rb_ary_new2 (len);
+  for (i = 0; r[i] != NULL; ++i) {
+    rb_ary_push (rv, rb_str_new2 (r[i]));
+    free (r[i]);
+  }
+  free (r);
+  return rv;
+}
+
+static VALUE ruby_guestfs_mount_loop (VALUE gv, VALUE filev, VALUE mountpointv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "mount_loop");
+
+  Check_Type (filev, T_STRING);
+  const char *file = StringValueCStr (filev);
+  if (!file)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "file", "mount_loop");
+  Check_Type (mountpointv, T_STRING);
+  const char *mountpoint = StringValueCStr (mountpointv);
+  if (!mountpoint)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "mountpoint", "mount_loop");
+
+  int r;
+
+  r = guestfs_mount_loop (g, file, mountpoint);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return Qnil;
+}
+
+static VALUE ruby_guestfs_mkswap (VALUE gv, VALUE devicev)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "mkswap");
+
+  Check_Type (devicev, T_STRING);
+  const char *device = StringValueCStr (devicev);
+  if (!device)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "device", "mkswap");
+
+  int r;
+
+  r = guestfs_mkswap (g, device);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return Qnil;
+}
+
+static VALUE ruby_guestfs_mkswap_L (VALUE gv, VALUE labelv, VALUE devicev)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "mkswap_L");
+
+  Check_Type (labelv, T_STRING);
+  const char *label = StringValueCStr (labelv);
+  if (!label)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "label", "mkswap_L");
+  Check_Type (devicev, T_STRING);
+  const char *device = StringValueCStr (devicev);
+  if (!device)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "device", "mkswap_L");
+
+  int r;
+
+  r = guestfs_mkswap_L (g, label, device);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return Qnil;
+}
+
+static VALUE ruby_guestfs_mkswap_U (VALUE gv, VALUE uuidv, VALUE devicev)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "mkswap_U");
+
+  Check_Type (uuidv, T_STRING);
+  const char *uuid = StringValueCStr (uuidv);
+  if (!uuid)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "uuid", "mkswap_U");
+  Check_Type (devicev, T_STRING);
+  const char *device = StringValueCStr (devicev);
+  if (!device)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "device", "mkswap_U");
+
+  int r;
+
+  r = guestfs_mkswap_U (g, uuid, device);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return Qnil;
+}
+
+static VALUE ruby_guestfs_mknod (VALUE gv, VALUE modev, VALUE devmajorv, VALUE devminorv, VALUE pathv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "mknod");
+
+  int mode = NUM2INT (modev);
+  int devmajor = NUM2INT (devmajorv);
+  int devminor = NUM2INT (devminorv);
+  Check_Type (pathv, T_STRING);
+  const char *path = StringValueCStr (pathv);
+  if (!path)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "path", "mknod");
+
+  int r;
+
+  r = guestfs_mknod (g, mode, devmajor, devminor, path);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return Qnil;
+}
+
+static VALUE ruby_guestfs_mkfifo (VALUE gv, VALUE modev, VALUE pathv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "mkfifo");
+
+  int mode = NUM2INT (modev);
+  Check_Type (pathv, T_STRING);
+  const char *path = StringValueCStr (pathv);
+  if (!path)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "path", "mkfifo");
+
+  int r;
+
+  r = guestfs_mkfifo (g, mode, path);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return Qnil;
+}
+
+static VALUE ruby_guestfs_mknod_b (VALUE gv, VALUE modev, VALUE devmajorv, VALUE devminorv, VALUE pathv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "mknod_b");
+
+  int mode = NUM2INT (modev);
+  int devmajor = NUM2INT (devmajorv);
+  int devminor = NUM2INT (devminorv);
+  Check_Type (pathv, T_STRING);
+  const char *path = StringValueCStr (pathv);
+  if (!path)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "path", "mknod_b");
+
+  int r;
+
+  r = guestfs_mknod_b (g, mode, devmajor, devminor, path);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return Qnil;
+}
+
+static VALUE ruby_guestfs_mknod_c (VALUE gv, VALUE modev, VALUE devmajorv, VALUE devminorv, VALUE pathv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "mknod_c");
+
+  int mode = NUM2INT (modev);
+  int devmajor = NUM2INT (devmajorv);
+  int devminor = NUM2INT (devminorv);
+  Check_Type (pathv, T_STRING);
+  const char *path = StringValueCStr (pathv);
+  if (!path)
+    rb_raise (rb_eTypeError, "expected string for parameter %s of %s",
+              "path", "mknod_c");
+
+  int r;
+
+  r = guestfs_mknod_c (g, mode, devmajor, devminor, path);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return Qnil;
+}
+
+static VALUE ruby_guestfs_umask (VALUE gv, VALUE maskv)
+{
+  guestfs_h *g;
+  Data_Get_Struct (gv, guestfs_h, g);
+  if (!g)
+    rb_raise (rb_eArgError, "%s: used handle after closing it", "umask");
+
+  int mask = NUM2INT (maskv);
+
+  int r;
+
+  r = guestfs_umask (g, mask);
+  if (r == -1)
+    rb_raise (e_Error, "%s", guestfs_last_error (g));
+
+  return INT2NUM (r);
+}
+
 /* Initialize the module. */
 void Init__guestfs ()
 {
@@ -4198,6 +4979,10 @@ void Init__guestfs ()
         ruby_guestfs_set_ready, 0);
   rb_define_method (c_guestfs, "end_busy",
         ruby_guestfs_end_busy, 0);
+  rb_define_method (c_guestfs, "set_memsize",
+        ruby_guestfs_set_memsize, 1);
+  rb_define_method (c_guestfs, "get_memsize",
+        ruby_guestfs_get_memsize, 0);
   rb_define_method (c_guestfs, "mount",
         ruby_guestfs_mount, 2);
   rb_define_method (c_guestfs, "sync",
@@ -4424,4 +5209,52 @@ void Init__guestfs ()
         ruby_guestfs_sh_lines, 1);
   rb_define_method (c_guestfs, "glob_expand",
         ruby_guestfs_glob_expand, 1);
+  rb_define_method (c_guestfs, "scrub_device",
+        ruby_guestfs_scrub_device, 1);
+  rb_define_method (c_guestfs, "scrub_file",
+        ruby_guestfs_scrub_file, 1);
+  rb_define_method (c_guestfs, "scrub_freespace",
+        ruby_guestfs_scrub_freespace, 1);
+  rb_define_method (c_guestfs, "mkdtemp",
+        ruby_guestfs_mkdtemp, 1);
+  rb_define_method (c_guestfs, "wc_l",
+        ruby_guestfs_wc_l, 1);
+  rb_define_method (c_guestfs, "wc_w",
+        ruby_guestfs_wc_w, 1);
+  rb_define_method (c_guestfs, "wc_c",
+        ruby_guestfs_wc_c, 1);
+  rb_define_method (c_guestfs, "head",
+        ruby_guestfs_head, 1);
+  rb_define_method (c_guestfs, "head_n",
+        ruby_guestfs_head_n, 2);
+  rb_define_method (c_guestfs, "tail",
+        ruby_guestfs_tail, 1);
+  rb_define_method (c_guestfs, "tail_n",
+        ruby_guestfs_tail_n, 2);
+  rb_define_method (c_guestfs, "df",
+        ruby_guestfs_df, 0);
+  rb_define_method (c_guestfs, "df_h",
+        ruby_guestfs_df_h, 0);
+  rb_define_method (c_guestfs, "du",
+        ruby_guestfs_du, 1);
+  rb_define_method (c_guestfs, "initrd_list",
+        ruby_guestfs_initrd_list, 1);
+  rb_define_method (c_guestfs, "mount_loop",
+        ruby_guestfs_mount_loop, 2);
+  rb_define_method (c_guestfs, "mkswap",
+        ruby_guestfs_mkswap, 1);
+  rb_define_method (c_guestfs, "mkswap_L",
+        ruby_guestfs_mkswap_L, 2);
+  rb_define_method (c_guestfs, "mkswap_U",
+        ruby_guestfs_mkswap_U, 2);
+  rb_define_method (c_guestfs, "mknod",
+        ruby_guestfs_mknod, 4);
+  rb_define_method (c_guestfs, "mkfifo",
+        ruby_guestfs_mkfifo, 2);
+  rb_define_method (c_guestfs, "mknod_b",
+        ruby_guestfs_mknod_b, 4);
+  rb_define_method (c_guestfs, "mknod_c",
+        ruby_guestfs_mknod_c, 4);
+  rb_define_method (c_guestfs, "umask",
+        ruby_guestfs_umask, 1);
 }