Index: dump-python.c
===================================================================
--- dump-python.c	(revision 7637)
+++ dump-python.c	(working copy)
@@ -21,6 +21,7 @@
 
 #include <config.h>
 
+#include <stdint.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <stdarg.h>
@@ -325,23 +326,71 @@
     SmiRange       *lastrange = NULL;
     SmiValue	   min, max;
 
-    min.basetype = SMI_BASETYPE_UNSIGNED32;
-    min.value.unsigned32 = 4294967295U;
+    min.basetype = smiType->basetype;
+    max.basetype = smiType->basetype;
 
-    max.basetype = SMI_BASETYPE_UNSIGNED32;
-    max.value.unsigned32 = 0;
+    switch (smiType->basetype) {
+    case SMI_BASETYPE_INTEGER32:
+	min.value.integer32 = INT32_MAX;
+	max.value.integer32 = INT32_MIN;
+	break;
+    case SMI_BASETYPE_INTEGER64:
+	min.value.integer64 = INT64_MAX;
+	max.value.integer64 = INT64_MIN;
+	break;
+    case SMI_BASETYPE_UNSIGNED32:
+	min.value.unsigned32 = UINT32_MAX;
+	max.value.unsigned32 = 0;
+	break;
+    case SMI_BASETYPE_UNSIGNED64:
+	min.value.unsigned64 = LIBSMI_UINT64_MAX;
+	max.value.unsigned64 = 0;
+	break;
+    default:
+	fprintf(stderr, "smidump: unhandled SMI basetype\n");
+    }
 
     fprintSegment(f, indent, "\"ranges\" : [\n", 0);
     for (range = smiGetFirstRange(smiType);
 	 range;
 	 range = smiGetNextRange(range)) {
 	lastrange = range;
-	if (range->minValue.value.unsigned32 < min.value.unsigned32) {
-	    min.value.unsigned32 = range->minValue.value.unsigned32;
+	switch (smiType->basetype) {
+	case SMI_BASETYPE_INTEGER32:
+	    if (range->minValue.value.integer32 < min.value.integer32) {
+		min.value.integer32 = range->minValue.value.integer32;
+	    }
+	    if (range->maxValue.value.integer32 > max.value.integer32) {
+		max.value.integer32 = range->maxValue.value.integer32;
+	    }
+	    break;
+	case SMI_BASETYPE_INTEGER64:
+	    if (range->minValue.value.integer64 < min.value.integer64) {
+		min.value.integer64 = range->minValue.value.integer64;
+	    }
+	    if (range->maxValue.value.integer64 > max.value.integer64) {
+		max.value.integer64 = range->maxValue.value.integer64;
+	    }
+	    break;
+	case SMI_BASETYPE_UNSIGNED32:
+	    if (range->minValue.value.unsigned32 < min.value.unsigned32) {
+		min.value.unsigned32 = range->minValue.value.unsigned32;
+	    }
+	    if (range->maxValue.value.unsigned32 > max.value.unsigned32) {
+		max.value.unsigned32 = range->maxValue.value.unsigned32;
+	    }
+	    break;
+	case SMI_BASETYPE_UNSIGNED64:
+	    if (range->minValue.value.unsigned64 < min.value.unsigned64) {
+		min.value.unsigned64 = range->minValue.value.unsigned64;
+	    }
+	    if (range->maxValue.value.unsigned64 > max.value.unsigned64) {
+		max.value.unsigned64 = range->maxValue.value.unsigned64;
+	    }
+	    break;
+	default:
+	    break;
 	}
-	if (range->maxValue.value.unsigned32 > max.value.unsigned32) {
-	    max.value.unsigned32 = range->maxValue.value.unsigned32;
-	}
 	fprintSegment(f, indent, "{\n", 0);
 	fprintSegment(f, indent + INDENT, "", 0);
 	fprint(f, "\"min\" : \"%s\",\n",