# HG changeset patch
# User Thomas Bernard <miniupnp@free.fr>
# Date 1603751528 -3600
#      Mon Oct 26 23:32:08 2020 +0100
# Node ID 1149505058ece08fe69753c86e2c3107a1259f77
# Parent  a6c39d00937b7742569adf63654873db8834ee6b
IMG_xcf.c: fix version detection

diff -r a6c39d00937b -r 1149505058ec IMG_xcf.c
--- a/IMG_xcf.c	Sun Oct 25 23:55:40 2020 +0300
+++ b/IMG_xcf.c	Mon Oct 26 23:32:08 2020 +0100
@@ -321,7 +321,10 @@
   h->width       = SDL_ReadBE32 (src);
   h->height      = SDL_ReadBE32 (src);
   h->image_type  = SDL_ReadBE32 (src);
-  h->file_version = (h->sign[10] - '0') * 100 + (h->sign[11] - '0') * 10 + (h->sign[12] - '0');
+  if (h->sign[9] == 'v' && h->sign[10] >= '0' && h->sign[10] <= '9' && h->sign[11] >= '0' && h->sign[11] <= '9' && h->sign[12] >= '0' && h->sign[12] <= '9')
+    h->file_version = (h->sign[10] - '0') * 100 + (h->sign[11] - '0') * 10 + (h->sign[12] - '0');
+  else
+    h->file_version = 0;
 #ifdef DEBUG
   printf ("XCF signature : %.14s (version %u)\n", h->sign, h->file_version);
   printf (" (%u,%u) type=%u\n", h->width, h->height, h->image_type);