Added file version 5.37.

Till the oddness with zip archives and -z switch will be resolved, I'd
like to have working version of file, to be able to access zip files
from the midnight commander.

sys-apps/file/Manifest

@@ -0,0 +1,3 @@
+AUX file-5.37-CVE-2019-18218.patch 1038 BLAKE2B 30622d39fb4006b07fabab70dfe6fc3f574aac769c7728bada7b622fd670616efc12d42cabf95b32a8a98c811e171059af2e127c170c1935dc00def4a1fc05b6 SHA512 3517e35db03944bcca6da28ddac9f0d08ce052b03d1508d26851fd6691bedc89f3974822a1559576987c8c10a0343bc8788cc7df52406d66a591ddcd39b23a5c
+DIST file-5.37.tar.gz 887682 BLAKE2B c5635e5de879af31cbef1c988275ab8620133909d146769b27a2f8eefa90871fad5fa75e66b9e1d77a6261e5d6dec315fb5a8ad587d8c214eaa0bc2e5a929fe7 SHA512 bf153c15aebdd00329806231d20f295077b8b99efd0181d01279bcf3734a1718567df38cf75bc929eb8015ac98d29bb4bf1228d7ece8bfdfe14dd976391dd06d
+EBUILD file-5.37-r1.ebuild 3153 BLAKE2B 19df45e9db45ca58085f3758d9396a074b6cd3a2475228ff7774551e85adb321203091958ae36eaa2aa12bbbfc2bf7aa79ad1e8b95345a106accd20fd621f54a SHA512 786d0ad8abe705e1e5ed1c3604dc4d6e4ae00ab27150368dd00475baefaeb37ec72c45297fd68def3fcb276b2ee29a8b8982e0010223d87df55450d49c8a1d76

sys-apps/file/file-5.37-r1.ebuild

@@ -0,0 +1,128 @@
+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_{7,8} )
+DISTUTILS_OPTIONAL=1
+
+inherit distutils-r1 libtool toolchain-funcs multilib-minimal
+
+if [[ ${PV} == "9999" ]] ; then
+	EGIT_REPO_URI="https://github.com/glensc/file.git"
+	inherit autotools git-r3
+else
+	SRC_URI="ftp://ftp.astron.com/pub/file/${P}.tar.gz"
+	KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~m68k ~mips ppc ppc64 ~riscv s390 sparc x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+fi
+
+DESCRIPTION="identify a file's format by scanning binary data for patterns"
+HOMEPAGE="https://www.darwinsys.com/file/"
+
+LICENSE="BSD-2"
+SLOT="0"
+IUSE="python static-libs zlib"
+REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"
+
+DEPEND="
+	python? (
+		${PYTHON_DEPS}
+		dev-python/setuptools[${PYTHON_USEDEP}]
+	)
+	zlib? ( >=sys-libs/zlib-1.2.8-r1[${MULTILIB_USEDEP}] )"
+RDEPEND="${DEPEND}
+	python? ( !dev-python/python-magic )"
+
+PATCHES=( "${FILESDIR}"/${P}-CVE-2019-18218.patch )
+
+src_prepare() {
+	default
+
+	[[ ${PV} == "9999" ]] && eautoreconf
+	elibtoolize
+
+	# don't let python README kill main README #60043
+	mv python/README.md python/README.python.md || die
+	sed 's@README.md@README.python.md@' -i python/setup.py || die #662090
+}
+
+multilib_src_configure() {
+	local myeconfargs=(
+		--disable-libseccomp
+		--enable-fsect-man5
+		$(use_enable static-libs static)
+		$(use_enable zlib)
+	)
+	ECONF_SOURCE="${S}" econf "${myeconfargs[@]}"
+}
+
+src_configure() {
+	# when cross-compiling, we need to build up our own file
+	# because people often don't keep matching host/target
+	# file versions #362941
+	if tc-is-cross-compiler && ! ROOT=/ has_version ~${CATEGORY}/${P} ; then
+		mkdir -p "${WORKDIR}"/build || die
+		cd "${WORKDIR}"/build || die
+		tc-export_build_env BUILD_C{C,XX}
+		ECONF_SOURCE="${S}" \
+		ac_cv_header_zlib_h=no \
+		ac_cv_lib_z_gzopen=no \
+		CHOST=${CBUILD} \
+		CFLAGS=${BUILD_CFLAGS} \
+		CXXFLAGS=${BUILD_CXXFLAGS} \
+		CPPFLAGS=${BUILD_CPPFLAGS} \
+		LDFLAGS="${BUILD_LDFLAGS} -static" \
+		CC=${BUILD_CC} \
+		CXX=${BUILD_CXX} \
+		econf --disable-shared --disable-libseccomp
+	fi
+
+	multilib-minimal_src_configure
+}
+
+multilib_src_compile() {
+	if multilib_is_native_abi ; then
+		emake
+	else
+		cd src || die
+		emake magic.h #586444
+		emake libmagic.la
+	fi
+}
+
+src_compile() {
+	if tc-is-cross-compiler && ! ROOT=/ has_version "~${CATEGORY}/${P}" ; then
+		emake -C "${WORKDIR}"/build/src magic.h #586444
+		emake -C "${WORKDIR}"/build/src file
+		PATH="${WORKDIR}/build/src:${PATH}"
+	fi
+	multilib-minimal_src_compile
+
+	if use python ; then
+		cd python || die
+		distutils-r1_src_compile
+	fi
+}
+
+multilib_src_install() {
+	if multilib_is_native_abi ; then
+		default
+	else
+		emake -C src install-{nodist_includeHEADERS,libLTLIBRARIES} DESTDIR="${D}"
+	fi
+}
+
+multilib_src_install_all() {
+	dodoc ChangeLog MAINT README
+
+	# Required for `file -C`
+	dodir /usr/share/misc/magic
+	insinto /usr/share/misc/magic
+	doins -r magic/Magdir/*
+
+	if use python ; then
+		cd python || die
+		distutils-r1_src_install
+	fi
+	find "${ED}" -type f -name "*.la" -delete || die
+}

sys-apps/file/files/file-5.37-CVE-2019-18218.patch

@@ -0,0 +1,36 @@
+CVE-2019-18218
+https://github.com/file/file/commit/46a8443f76cec4b41ec736eca396984c74664f84
+
+--- a/src/cdf.c
++++ b/src/cdf.c
+@@ -1027,8 +1027,9 @@ cdf_read_property_info(const cdf_stream_t *sst, const cdf_header_t *h,
+ 				goto out;
+ 			}
+ 			nelements = CDF_GETUINT32(q, 1);
+-			if (nelements == 0) {
+-				DPRINTF(("CDF_VECTOR with nelements == 0\n"));
++			if (nelements > CDF_ELEMENT_LIMIT || nelements == 0) {
++				DPRINTF(("CDF_VECTOR with nelements == %"
++				    SIZE_T_FORMAT "u\n", nelements));
+ 				goto out;
+ 			}
+ 			slen = 2;
+@@ -1070,8 +1071,6 @@ cdf_read_property_info(const cdf_stream_t *sst, const cdf_header_t *h,
+ 					goto out;
+ 				inp += nelem;
+ 			}
+-			DPRINTF(("nelements = %" SIZE_T_FORMAT "u\n",
+-			    nelements));
+ 			for (j = 0; j < nelements && i < sh.sh_properties;
+ 			    j++, i++)
+ 			{
+--- a/src/cdf.h
++++ b/src/cdf.h
+@@ -48,6 +48,7 @@
+ typedef int32_t cdf_secid_t;
+ 
+ #define CDF_LOOP_LIMIT					10000
++#define CDF_ELEMENT_LIMIT				100000
+ 
+ #define CDF_SECID_NULL					0
+ #define CDF_SECID_FREE					-1