fix assertion failure on certain files

file-5.29-short-sector.patch

@@ -0,0 +1,29 @@
+From 5d4ec1f1279dc431343def88c95fc5315e30bffc Mon Sep 17 00:00:00 2001
+From: Christos Zoulas <christos@zoulas.com>
+Date: Tue, 7 Feb 2017 23:21:29 +0000
+Subject: [PATCH] If we are reading a sector stream that is shorter than the
+ minimum standard stream size, but there is no short sector chain, adjust the
+ dirlen.
+
+Upstream-commit: 781a5357d0dc780e57cc36ec93e47ed3a954b74b
+Signed-off-by: Kamil Dudka <kdudka@redhat.com>
+---
+ src/cdf.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/cdf.c b/src/cdf.c
+index d38e793..b6fe6cd 100644
+--- a/src/cdf.c
++++ b/src/cdf.c
+@@ -527,7 +527,7 @@ cdf_read_long_sector_chain(const cdf_info_t *info, const cdf_header_t *h,
+ 	ssize_t nr;
+ 	scn->sst_tab = NULL;
+ 	scn->sst_len = cdf_count_chain(sat, sid, ss);
+-	scn->sst_dirlen = len;
++	scn->sst_dirlen = MAX(h->h_min_size_standard_stream, len);
+ 	scn->sst_ss = ss;
+ 
+ 	if (scn->sst_len == (size_t)-1)
+-- 
+2.7.4
+

file.spec

@@ -5,7 +5,7 @@
 Summary: A utility for determining file types
 Name: file
 Version: 5.29
-Release: 2%{?dist}
+Release: 3%{?dist}
 License: BSD
 Group: Applications/File
 Source0: ftp://ftp.astron.com/pub/file/file-%{version}.tar.gz
@@ -25,6 +25,9 @@ Patch14: file-5.19-cafebabe.patch
 Patch15: file-5.22-awk-perl.patch
 Patch17: file-5.24-varied.patch
 
+# picked from upstream
+Patch102: file-5.29-short-sector.patch
+
 URL: http://www.darwinsys.com/file/
 Requires: file-libs = %{version}-%{release}
 BuildRequires: zlib-devel
@@ -97,6 +100,8 @@ file(1) command.
 %patch15 -p1
 %patch17 -p1
 
+%patch102 -p1
+
 # Patches can generate *.orig files, which can't stay in the magic dir,
 # otherwise there will be problems with compiling magic file!
 rm -fv magic/Magdir/*.orig
@@ -203,6 +208,9 @@ cd %{py3dir}
 %endif
 
 %changelog
+* Wed Feb 08 2017 Kamil Dudka <kdudka@redhat.com> - 5.29-3
+- fix assertion failure on certain files (thanks to Christoph Biedl)
+
 * Tue Dec 13 2016 Charalampos Stratakis <cstratak@redhat.com> - 5.29-2
 - Rebuild for Python 3.6