Fix 547 0.27

appveyor.yml

@@ -53,7 +53,8 @@ install:
     - 7z x ninja.zip -oC:\projects\deps\ninja > nul
     - set PATH=C:\projects\deps\ninja;%PATH%
     - ninja --version
-    - pip.exe install conan==1.24.1
+    - python -m pip install --upgrade pip
+    - pip3.exe install conan==1.24.1
     - cd %APPVEYOR_BUILD_FOLDER%
 
 before_build:

ci/install_dependencies.sh

@@ -57,7 +57,15 @@ case "$distro_id" in
 
     'opensuse'|'opensuse-tumbleweed')
         zypper --non-interactive refresh
-        zypper --non-interactive install gcc-c++ clang cmake make ccache libexpat-devel zlib-devel libssh-devel libcurl-devel gtest which dos2unix libxml2-tools
+        zypper --non-interactive install gcc-c++ clang cmake make ccache libexpat-devel zlib-devel libssh-devel curl tar libcurl-devel git which dos2unix libxml2-tools
+        pushd /tmp
+          curl -LO https://github.com/google/googletest/archive/release-1.8.0.tar.gz
+          tar xzf   release-1.8.0.tar.gz
+          mkdir -p  googletest-release-1.8.0/build
+          pushd     googletest-release-1.8.0/build
+            cmake .. ; make ; make install
+          popd
+        popd
         ;;
     *)
         echo "Sorry, no predefined dependencies for your distribution $distro_id exist yet"

ci/run.sh

@@ -17,6 +17,7 @@ if [[ "$(uname -s)" == 'Linux' ]]; then
 else
     export CMAKE_OPTIONS="$CMAKE_OPTIONS -DEXIV2_TEAM_USE_SANITIZERS=ON"
 fi
+CMAKE_OPTIONS="$CMAKE_OPTIONS -DCMAKE_CXX_FLAGS=-Wno-deprecated"
 
 mkdir build
 cd    build

ci/test_build.py

@@ -40,8 +40,8 @@ def matrix_build(shared_libs, ccs, build_types, cmake_bin, cmake_options,
         )
         os.mkdir(cwd)
 
-        cmake = "{cmake_bin} {!s} -DCMAKE_BUILD_TYPE={build_type} " \
-            "-DBUILD_SHARED_LIBS={lib_type} -DEXIV2_BUILD_UNIT_TESTS={tests} "\
+        cmake = "{cmake_bin} {!s} -DCMAKE_BUILD_TYPE={build_type} -DCMAKE_CXX_FLAGS=-Wno-deprecated " \
+            "-DBUILD_SHARED_LIBS={lib_type} -DEXIV2_BUILD_UNIT_TESTS={tests} -DCMAKE_CXX_STANDARD=98 "\
             "../..".format(
                 cmake_options, cmake_bin=cmake_bin, build_type=build_type,
                 lib_type=lib_type, tests="ON" if tests else "OFF"

src/image.cpp

@@ -71,6 +71,7 @@
 #include <cassert>
 #include <iostream>
 #include <limits>
+#include <set>
 
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -332,9 +333,11 @@ namespace Exiv2 {
         return type >= 1 && type <= 13 ;
     }
 
+    static std::set<long> visits; // #547
     void Image::printIFDStructure(BasicIo& io, std::ostream& out, Exiv2::PrintStructureOption option,uint32_t start,bool bSwap,char c,int depth)
     {
         depth++;
+        if ( depth == 1 ) visits.clear();
         bool bFirst  = true  ;
 
         // buffer
@@ -361,6 +364,11 @@ namespace Exiv2 {
 
             // Read the dictionary
             for ( int i = 0 ; i < dirLength ; i ++ ) {
+                if ( visits.find(io.tell()) != visits.end()  ) { // #547
+                    throw Error(kerCorruptedMetadata);
+                }
+                visits.insert(io.tell());
+
                 if ( bFirst && bPrint ) {
                     out << Internal::indent(depth)
                         << " address |    tag                              |     "

tests/bugfixes/github/test_issue_547.py

@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+
+from system_tests import CaseMeta, path
+import unittest
+
+@unittest.skip("Skipping test using option -pR (only for Debug mode)")
+
+class test_issue_547(metaclass=CaseMeta):
+    """
+    Regression test for the bug described in:
+    https://github.com/Exiv2/exiv2/pull/547
+    """
+    url = "https://github.com/Exiv2/exiv2/issues/547"
+
+    filename = path("$data_path/issue_547.poc")
+    commands = ["$exiv2 -pR $filename"]
+    stdout = ["""STRUCTURE OF TIFF FILE (II): $filename
+ address |    tag                              |      type |    count |    offset | value
+      12 | 0x0001 Version                      |    SSHORT |        0 |           | 
+"""]
+    stderr = [
+"""Exiv2 exception in print action for file $filename:
+$kerCorruptedMetadata
+"""
+]
+    retval = [1]