File offsets and sizes use QAPI type 'size' (uint64_t).  MapEntry
members @start, @length and @offset are 'int' (int64_t).
get_block_status() sets @start and @length to unsigned long long
values, and @offset to a non-negative int64_t value.

Change these MapEntry members to 'size'.

"qemu-img map" now reports them correctly above 2^63-1 instead of
their (negative) two's complement.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 qapi/block-core.json | 4 ++--
 qemu-img.c           | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/qapi/block-core.json b/qapi/block-core.json
index 3482f8c..6f62723 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -236,8 +236,8 @@
 #
 ##
 { 'struct': 'MapEntry',
-  'data': {'start': 'int', 'length': 'int', 'data': 'bool',
-           'zero': 'bool', 'depth': 'int', '*offset': 'int',
+  'data': {'start': 'size', 'length': 'size', 'data': 'bool',
+           'zero': 'bool', 'depth': 'int', '*offset': 'size',
            '*filename': 'str' } }
 
 ##
diff --git a/qemu-img.c b/qemu-img.c
index cf3ef3e..1c783c7 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -2655,14 +2655,14 @@ static void dump_map_entry(OutputFormat output_format, MapEntry *e,
         }
         break;
     case OFORMAT_JSON:
-        printf("%s{ \"start\": %"PRId64", \"length\": %"PRId64","
+        printf("%s{ \"start\": %" PRIu64 ", \"length\": %" PRIu64 ","
                " \"depth\": %"PRId64", \"zero\": %s, \"data\": %s",
                (e->start == 0 ? "[" : ",\n"),
                e->start, e->length, e->depth,
                e->zero ? "true" : "false",
                e->data ? "true" : "false");
         if (e->has_offset) {
-            printf(", \"offset\": %"PRId64"", e->offset);
+            printf(", \"offset\": %" PRIu64, e->offset);
         }
         putchar('}');
 
-- 
2.7.5