get group again after potential remap in Source: parse

Mysteriously segfaults only on i386 for me, but at least one reporter
had the same behavior and it makes sense that this is the problem as the
parsing of Source: was fixed in 1.2.2 – before the not remapped group
was not used.

We don't use our usual Dynamic<> trick here as we don't have it in the
parser. Its a bit of a layer violation to do this parsing here, but its
how it is always was…

Until next time with this lovely kind of problem.

Closes: 812251
Thanks: Francesco Poli and Marc Haber for testdata.

diff --git a/apt-pkg/deb/deblistparser.cc b/apt-pkg/deb/deblistparser.cc
index 860aa3bc22cf21208d830692cf767a4093b095b5..ed5484ad97a0a5720134dffcc137ee1763ff1ce4 100644 (file)
--- a/apt-pkg/deb/deblistparser.cc
+++ b/apt-pkg/deb/deblistparser.cc
@@ -144,7 +144,7 @@ bool debListParser::NewVersion(pkgCache::VerIterator &Ver)
       Ver->Section = idx;
    }
    // Parse the source package name
-   pkgCache::GrpIterator const G = Ver.ParentPkg().Group();
+   pkgCache::GrpIterator G = Ver.ParentPkg().Group();
    Ver->SourcePkgName = G->Name;
    Ver->SourceVerStr = Ver->VerStr;
    if (Section.Find("Source",Start,Stop) == true)
@@ -164,6 +164,7 @@ bool debListParser::NewVersion(pkgCache::VerIterator &Ver)
               if (version != Ver.VerStr())
               {
                  map_stringitem_t const idx = StoreString(pkgCacheGenerator::VERSIONNUMBER, version);
+                 G = Ver.ParentPkg().Group();
                  Ver->SourceVerStr = idx;
               }
            }
@@ -190,6 +191,7 @@ bool debListParser::NewVersion(pkgCache::VerIterator &Ver)
         if (V.end() == true)
         {
            map_stringitem_t const idx = StoreString(pkgCacheGenerator::PKGNAME, pkgname);
+           G = Ver.ParentPkg().Group();
            Ver->SourcePkgName = idx;
         }
       }