13 files changed, 445 insertions, 28 deletions

diff --git a/t/helper/test-drop-caches.c b/t/helper/test-drop-caches.c
index f65e301f9d..7b4278462b 100644
--- a/t/helper/test-drop-caches.c
+++ b/t/helper/test-drop-caches.c
@@ -8,18 +8,21 @@ static int cmd_sync(void)
 {
 	char Buffer[MAX_PATH];
 	DWORD dwRet;
-	char szVolumeAccessPath[] = "\\\\.\\X:";
+	char szVolumeAccessPath[] = "\\\\.\\XXXX:";
 	HANDLE hVolWrite;
-	int success = 0;
+	int success = 0, dos_drive_prefix;
 
 	dwRet = GetCurrentDirectory(MAX_PATH, Buffer);
 	if ((0 == dwRet) || (dwRet > MAX_PATH))
 		return error("Error getting current directory");
 
-	if (!has_dos_drive_prefix(Buffer))
+	dos_drive_prefix = has_dos_drive_prefix(Buffer);
+	if (!dos_drive_prefix)
 		return error("'%s': invalid drive letter", Buffer);
 
-	szVolumeAccessPath[4] = Buffer[0];
+	memcpy(szVolumeAccessPath, Buffer, dos_drive_prefix);
+	szVolumeAccessPath[dos_drive_prefix] = '\0';
+
 	hVolWrite = CreateFile(szVolumeAccessPath, GENERIC_READ | GENERIC_WRITE,
 		FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
 	if (INVALID_HANDLE_VALUE == hVolWrite)
diff --git a/t/helper/test-path-utils.c b/t/helper/test-path-utils.c
index 5d543ad21f..409034cf4e 100644
--- a/t/helper/test-path-utils.c
+++ b/t/helper/test-path-utils.c
@@ -185,6 +185,99 @@ static int cmp_by_st_size(const void *a, const void *b)
 	return x > y ? -1 : (x < y ? +1 : 0);
 }
 
+/*
+ * A very simple, reproducible pseudo-random generator. Copied from
+ * `test-genrandom.c`.
+ */
+static uint64_t my_random_value = 1234;
+
+static uint64_t my_random(void)
+{
+	my_random_value = my_random_value * 1103515245 + 12345;
+	return my_random_value;
+}
+
+/*
+ * A fast approximation of the square root, without requiring math.h.
+ *
+ * It uses Newton's method to approximate the solution of 0 = x^2 - value.
+ */
+static double my_sqrt(double value)
+{
+	const double epsilon = 1e-6;
+	double x = value;
+
+	if (value == 0)
+		return 0;
+
+	for (;;) {
+		double delta = (value / x - x) / 2;
+		if (delta < epsilon && delta > -epsilon)
+			return x + delta;
+		x += delta;
+	}
+}
+
+static int protect_ntfs_hfs_benchmark(int argc, const char **argv)
+{
+	size_t i, j, nr, min_len = 3, max_len = 20;
+	char **names;
+	int repetitions = 15, file_mode = 0100644;
+	uint64_t begin, end;
+	double m[3][2], v[3][2];
+	uint64_t cumul;
+	double cumul2;
+
+	if (argc > 1 && !strcmp(argv[1], "--with-symlink-mode")) {
+		file_mode = 0120000;
+		argc--;
+		argv++;
+	}
+
+	nr = argc > 1 ? strtoul(argv[1], NULL, 0) : 1000000;
+	ALLOC_ARRAY(names, nr);
+
+	if (argc > 2) {
+		min_len = strtoul(argv[2], NULL, 0);
+		if (argc > 3)
+			max_len = strtoul(argv[3], NULL, 0);
+		if (min_len > max_len)
+			die("min_len > max_len");
+	}
+
+	for (i = 0; i < nr; i++) {
+		size_t len = min_len + (my_random() % (max_len + 1 - min_len));
+
+		names[i] = xmallocz(len);
+		while (len > 0)
+			names[i][--len] = (char)(' ' + (my_random() % ('\x7f' - ' ')));
+	}
+
+	for (protect_ntfs = 0; protect_ntfs < 2; protect_ntfs++)
+		for (protect_hfs = 0; protect_hfs < 2; protect_hfs++) {
+			cumul = 0;
+			cumul2 = 0;
+			for (i = 0; i < repetitions; i++) {
+				begin = getnanotime();
+				for (j = 0; j < nr; j++)
+					verify_path(names[j], file_mode);
+				end = getnanotime();
+				printf("protect_ntfs = %d, protect_hfs = %d: %lfms\n", protect_ntfs, protect_hfs, (end-begin) / (double)1e6);
+				cumul += end - begin;
+				cumul2 += (end - begin) * (end - begin);
+			}
+			m[protect_ntfs][protect_hfs] = cumul / (double)repetitions;
+			v[protect_ntfs][protect_hfs] = my_sqrt(cumul2 / (double)repetitions - m[protect_ntfs][protect_hfs] * m[protect_ntfs][protect_hfs]);
+			printf("mean: %lfms, stddev: %lfms\n", m[protect_ntfs][protect_hfs] / (double)1e6, v[protect_ntfs][protect_hfs] / (double)1e6);
+		}
+
+	for (protect_ntfs = 0; protect_ntfs < 2; protect_ntfs++)
+		for (protect_hfs = 0; protect_hfs < 2; protect_hfs++)
+			printf("ntfs=%d/hfs=%d: %lf%% slower\n", protect_ntfs, protect_hfs, (m[protect_ntfs][protect_hfs] - m[0][0]) * 100 / m[0][0]);
+
+	return 0;
+}
+
 int cmd__path_utils(int argc, const char **argv)
 {
 	if (argc == 3 && !strcmp(argv[1], "normalize_path_copy")) {
@@ -355,6 +448,26 @@ int cmd__path_utils(int argc, const char **argv)
 		return !!res;
 	}
 
+	if (argc > 1 && !strcmp(argv[1], "protect_ntfs_hfs"))
+		return !!protect_ntfs_hfs_benchmark(argc - 1, argv + 1);
+
+	if (argc > 1 && !strcmp(argv[1], "is_valid_path")) {
+		int res = 0, expect = 1, i;
+
+		for (i = 2; i < argc; i++)
+			if (!strcmp("--not", argv[i]))
+				expect = 0;
+			else if (expect != is_valid_path(argv[i]))
+				res = error("'%s' is%s a valid path",
+					    argv[i], expect ? " not" : "");
+			else
+				fprintf(stderr,
+					"'%s' is%s a valid path\n",
+					argv[i], expect ? "" : " not");
+
+		return !!res;
+	}
+
 	fprintf(stderr, "%s: unknown function name: %s\n", argv[0],
 		argv[1] ? argv[1] : "(there was none)");
 	return 1;
diff --git a/t/helper/test-run-command.c b/t/helper/test-run-command.c
index ead6dc611a..724328975a 100644
--- a/t/helper/test-run-command.c
+++ b/t/helper/test-run-command.c
@@ -18,8 +18,8 @@
 #include "string-list.h"
 #include "thread-utils.h"
 #include "wildmatch.h"
-#include <string.h>
-#include <errno.h>
+#include "gettext.h"
+#include "parse-options.h"
 
 static int number_callbacks;
 static int parallel_next(struct child_process *cp,
@@ -200,6 +200,134 @@ static int testsuite(int argc, const char **argv)
 	return !!ret;
 }
 
+static uint64_t my_random_next = 1234;
+
+static uint64_t my_random(void)
+{
+	uint64_t res = my_random_next;
+	my_random_next = my_random_next * 1103515245 + 12345;
+	return res;
+}
+
+static int quote_stress_test(int argc, const char **argv)
+{
+	/*
+	 * We are running a quote-stress test.
+	 * spawn a subprocess that runs quote-stress with a
+	 * special option that echoes back the arguments that
+	 * were passed in.
+	 */
+	char special[] = ".?*\\^_\"'`{}()[]<>@~&+:;$%"; // \t\r\n\a";
+	int i, j, k, trials = 100, skip = 0, msys2 = 0;
+	struct strbuf out = STRBUF_INIT;
+	struct argv_array args = ARGV_ARRAY_INIT;
+	struct option options[] = {
+		OPT_INTEGER('n', "trials", &trials, "Number of trials"),
+		OPT_INTEGER('s', "skip", &skip, "Skip <n> trials"),
+		OPT_BOOL('m', "msys2", &msys2, "Test quoting for MSYS2's sh"),
+		OPT_END()
+	};
+	const char * const usage[] = {
+		"test-tool run-command quote-stress-test <options>",
+		NULL
+	};
+
+	argc = parse_options(argc, argv, NULL, options, usage, 0);
+
+	setenv("MSYS_NO_PATHCONV", "1", 0);
+
+	for (i = 0; i < trials; i++) {
+		struct child_process cp = CHILD_PROCESS_INIT;
+		size_t arg_count, arg_offset;
+		int ret = 0;
+
+		argv_array_clear(&args);
+		if (msys2)
+			argv_array_pushl(&args, "sh", "-c",
+					 "printf %s\\\\0 \"$@\"", "skip", NULL);
+		else
+			argv_array_pushl(&args, "test-tool", "run-command",
+					 "quote-echo", NULL);
+		arg_offset = args.argc;
+
+		if (argc > 0) {
+			trials = 1;
+			arg_count = argc;
+			for (j = 0; j < arg_count; j++)
+				argv_array_push(&args, argv[j]);
+		} else {
+			arg_count = 1 + (my_random() % 5);
+			for (j = 0; j < arg_count; j++) {
+				char buf[20];
+				size_t min_len = 1;
+				size_t arg_len = min_len +
+					(my_random() % (ARRAY_SIZE(buf) - min_len));
+
+				for (k = 0; k < arg_len; k++)
+					buf[k] = special[my_random() %
+						ARRAY_SIZE(special)];
+				buf[arg_len] = '\0';
+
+				argv_array_push(&args, buf);
+			}
+		}
+
+		if (i < skip)
+			continue;
+
+		cp.argv = args.argv;
+		strbuf_reset(&out);
+		if (pipe_command(&cp, NULL, 0, &out, 0, NULL, 0) < 0)
+			return error("Failed to spawn child process");
+
+		for (j = 0, k = 0; j < arg_count; j++) {
+			const char *arg = args.argv[j + arg_offset];
+
+			if (strcmp(arg, out.buf + k))
+				ret = error("incorrectly quoted arg: '%s', "
+					    "echoed back as '%s'",
+					     arg, out.buf + k);
+			k += strlen(out.buf + k) + 1;
+		}
+
+		if (k != out.len)
+			ret = error("got %d bytes, but consumed only %d",
+				     (int)out.len, (int)k);
+
+		if (ret) {
+			fprintf(stderr, "Trial #%d failed. Arguments:\n", i);
+			for (j = 0; j < arg_count; j++)
+				fprintf(stderr, "arg #%d: '%s'\n",
+					(int)j, args.argv[j + arg_offset]);
+
+			strbuf_release(&out);
+			argv_array_clear(&args);
+
+			return ret;
+		}
+
+		if (i && (i % 100) == 0)
+			fprintf(stderr, "Trials completed: %d\n", (int)i);
+	}
+
+	strbuf_release(&out);
+	argv_array_clear(&args);
+
+	return 0;
+}
+
+static int quote_echo(int argc, const char **argv)
+{
+	while (argc > 1) {
+		fwrite(argv[1], strlen(argv[1]), 1, stdout);
+		fputc('\0', stdout);
+		argv++;
+		argc--;
+	}
+
+	return 0;
+}
+
 int cmd__run_command(int argc, const char **argv)
 {
 	struct child_process proc = CHILD_PROCESS_INIT;
@@ -208,6 +336,12 @@ int cmd__run_command(int argc, const char **argv)
 	if (argc > 1 && !strcmp(argv[1], "testsuite"))
 		exit(testsuite(argc - 1, argv + 1));
 
+	if (argc >= 2 && !strcmp(argv[1], "quote-stress-test"))
+		return !!quote_stress_test(argc - 1, argv + 1);
+
+	if (argc >= 2 && !strcmp(argv[1], "quote-echo"))
+		return !!quote_echo(argc - 1, argv + 1);
+
 	if (argc < 3)
 		return 1;
 	while (!strcmp(argv[1], "env")) {
diff --git a/t/t0060-path-utils.sh b/t/t0060-path-utils.sh
index c7b53e494b..b193ed4205 100755
--- a/t/t0060-path-utils.sh
+++ b/t/t0060-path-utils.sh
@@ -165,6 +165,15 @@ test_expect_success 'absolute path rejects the empty string' '
 	test_must_fail test-tool path-utils absolute_path ""
 '
 
+test_expect_success MINGW '<drive-letter>:\\abc is an absolute path' '
+	for letter in : \" C Z 1 ä
+	do
+		path=$letter:\\abc &&
+		absolute="$(test-tool path-utils absolute_path "$path")" &&
+		test "$path" = "$absolute" || return 1
+	done
+'
+
 test_expect_success 'real path rejects the empty string' '
 	test_must_fail test-tool path-utils real_path ""
 '
@@ -423,6 +432,9 @@ test_expect_success 'match .gitmodules' '
 		~1000000 \
 		~9999999 \
 		\
+		.gitmodules:\$DATA \
+		"gitmod~4 . :\$DATA" \
+		\
 		--not \
 		".gitmodules x"  \
 		".gitmodules .x" \
@@ -447,7 +459,25 @@ test_expect_success 'match .gitmodules' '
 		\
 		GI7EB~1 \
 		GI7EB~01 \
-		GI7EB~1X
+		GI7EB~1X \
+		\
+		.gitmodules,:\$DATA
+'
+
+test_expect_success MINGW 'is_valid_path() on Windows' '
+       test-tool path-utils is_valid_path \
+		win32 \
+		"win32 x" \
+		../hello.txt \
+		C:\\git \
+		\
+		--not \
+		"win32 "  \
+		"win32 /x "  \
+		"win32."  \
+		"win32 . ." \
+		.../hello.txt \
+		colon:test
 '
 
 test_done
diff --git a/t/t1014-read-tree-confusing.sh b/t/t1014-read-tree-confusing.sh
index 2f5a25d503..da3376b3bb 100755
--- a/t/t1014-read-tree-confusing.sh
+++ b/t/t1014-read-tree-confusing.sh
@@ -49,6 +49,7 @@ git~1
 .git.SPACE .git.{space}
 .\\\\.GIT\\\\foobar backslashes
 .git\\\\foobar backslashes2
+.git...:alternate-stream
 EOF
 
 test_expect_success 'utf-8 paths allowed with core.protectHFS off' '
diff --git a/t/t1450-fsck.sh b/t/t1450-fsck.sh
index 50d28e6fdb..7436e63c71 100755
--- a/t/t1450-fsck.sh
+++ b/t/t1450-fsck.sh
@@ -441,6 +441,7 @@ while read name path pretty; do
 		(
 			git init $name-$type &&
 			cd $name-$type &&
+			git config core.protectNTFS false &&
 			echo content >file &&
 			git add file &&
 			git commit -m base &&
diff --git a/t/t6130-pathspec-noglob.sh b/t/t6130-pathspec-noglob.sh
index 37760233a5..ba7902c9cd 100755
--- a/t/t6130-pathspec-noglob.sh
+++ b/t/t6130-pathspec-noglob.sh
@@ -10,6 +10,7 @@ test_expect_success 'create commits with glob characters' '
 	# the name "f*" in the worktree, because it is not allowed
 	# on Windows (the tests below do not depend on the presence
 	# of the file in the worktree)
+	git config core.protectNTFS false &&
 	git update-index --add --cacheinfo 100644 "$(git rev-parse HEAD:foo)" "f*" &&
 	test_tick &&
 	git commit -m star &&
diff --git a/t/t7406-submodule-update.sh b/t/t7406-submodule-update.sh
index df34c994d2..7478f7ab7e 100755
--- a/t/t7406-submodule-update.sh
+++ b/t/t7406-submodule-update.sh
@@ -406,12 +406,26 @@ test_expect_success 'submodule update - command in .git/config' '
 	)
 '
 
-test_expect_success 'submodule update - command in .gitmodules is ignored' '
+test_expect_success 'submodule update - command in .gitmodules is rejected' '
 	test_when_finished "git -C super reset --hard HEAD^" &&
 	git -C super config -f .gitmodules submodule.submodule.update "!false" &&
 	git -C super commit -a -m "add command to .gitmodules file" &&
 	git -C super/submodule reset --hard $submodulesha1^ &&
-	git -C super submodule update submodule
+	test_must_fail git -C super submodule update submodule
+'
+
+test_expect_success 'fsck detects command in .gitmodules' '
+	git init command-in-gitmodules &&
+	(
+		cd command-in-gitmodules &&
+		git submodule add ../submodule submodule &&
+		test_commit adding-submodule &&
+
+		git config -f .gitmodules submodule.submodule.update "!false" &&
+		git add .gitmodules &&
+		test_commit configuring-update &&
+		test_must_fail git fsck
+	)
 '
 
 cat << EOF >expect
@@ -480,6 +494,9 @@ test_expect_success 'recursive submodule update - command in .git/config catches
 '
 
 test_expect_success 'submodule init does not copy command into .git/config' '
+	test_when_finished "git -C super update-index --force-remove submodule1" &&
+	test_when_finished git config -f super/.gitmodules \
+		--remove-section submodule.submodule1 &&
 	(cd super &&
 	 git ls-files -s submodule >out &&
 	 H=$(cut -d" " -f2 out) &&
@@ -488,10 +505,9 @@ test_expect_success 'submodule init does not copy command into .git/config' '
 	 git config -f .gitmodules submodule.submodule1.path submodule1 &&
 	 git config -f .gitmodules submodule.submodule1.url ../submodule &&
 	 git config -f .gitmodules submodule.submodule1.update !false &&
-	 git submodule init submodule1 &&
-	 echo "none" >expect &&
-	 git config submodule.submodule1.update >actual &&
-	 test_cmp expect actual
+	 test_must_fail git submodule init submodule1 &&
+	 test_expect_code 1 git config submodule.submodule1.update >actual &&
+	 test_must_be_empty actual
 	)
 '
 
diff --git a/t/t7415-submodule-names.sh b/t/t7415-submodule-names.sh
index 49a37efe9c..905a557585 100755
--- a/t/t7415-submodule-names.sh
+++ b/t/t7415-submodule-names.sh
@@ -191,4 +191,60 @@ test_expect_success 'fsck detects corrupt .gitmodules' '
 	)
 '
 
+test_expect_success MINGW 'prevent git~1 squatting on Windows' '
+	git init squatting &&
+	(
+		cd squatting &&
+		mkdir a &&
+		touch a/..git &&
+		git add a/..git &&
+		test_tick &&
+		git commit -m initial &&
+
+		modules="$(test_write_lines \
+			"[submodule \"b.\"]" "url = ." "path = c" \
+			"[submodule \"b\"]" "url = ." "path = d\\\\a" |
+			git hash-object -w --stdin)" &&
+		rev="$(git rev-parse --verify HEAD)" &&
+		hash="$(echo x | git hash-object -w --stdin)" &&
+		git -c core.protectNTFS=false update-index --add \
+			--cacheinfo 100644,$modules,.gitmodules \
+			--cacheinfo 160000,$rev,c \
+			--cacheinfo 160000,$rev,d\\a \
+			--cacheinfo 100644,$hash,d./a/x \
+			--cacheinfo 100644,$hash,d./a/..git &&
+		test_tick &&
+		git -c core.protectNTFS=false commit -m "module" &&
+		test_must_fail git show HEAD: 2>err &&
+		test_i18ngrep backslash err
+	) &&
+	test_must_fail git -c core.protectNTFS=false \
+		clone --recurse-submodules squatting squatting-clone 2>err &&
+	test_i18ngrep -e "directory not empty" -e "not an empty directory" err &&
+	! grep gitdir squatting-clone/d/a/git~2
+'
+
+test_expect_success 'git dirs of sibling submodules must not be nested' '
+	git init nested &&
+	test_commit -C nested nested &&
+	(
+		cd nested &&
+		cat >.gitmodules <<-EOF &&
+		[submodule "hippo"]
+			url = .
+			path = thing1
+		[submodule "hippo/hooks"]
+			url = .
+			path = thing2
+		EOF
+		git clone . thing1 &&
+		git clone . thing2 &&
+		git add .gitmodules thing1 thing2 &&
+		test_tick &&
+		git commit -m nested
+	) &&
+	test_must_fail git clone --recurse-submodules nested clone 2>err &&
+	test_i18ngrep "is inside git dir" err
+'
+
 test_done
diff --git a/t/t7416-submodule-dash-url.sh b/t/t7416-submodule-dash-url.sh
index 1cd2c1c1ea..5ba041f537 100755
--- a/t/t7416-submodule-dash-url.sh
+++ b/t/t7416-submodule-dash-url.sh
@@ -46,4 +46,18 @@ test_expect_success 'fsck rejects unprotected dash' '
 	grep gitmodulesUrl err
 '
 
+test_expect_success 'trailing backslash is handled correctly' '
+	git init testmodule &&
+	test_commit -C testmodule c &&
+	git submodule add ./testmodule &&
+	: ensure that the name ends in a double backslash &&
+	sed -e "s|\\(submodule \"testmodule\\)\"|\\1\\\\\\\\\"|" \
+		-e "s|url = .*|url = \" --should-not-be-an-option\"|" \
+		<.gitmodules >.new &&
+	mv .new .gitmodules &&
+	git commit -am "Add testmodule" &&
+	test_must_fail git clone --verbose --recurse-submodules . dolly 2>err &&
+	test_i18ngrep ! "unknown option" err
+'
+
 test_done
diff --git a/t/t7417-submodule-path-url.sh b/t/t7417-submodule-path-url.sh
index 756af8c4d6..f7e7e94d7b 100755
--- a/t/t7417-submodule-path-url.sh
+++ b/t/t7417-submodule-path-url.sh
@@ -25,4 +25,21 @@ test_expect_success 'fsck rejects unprotected dash' '
 	grep gitmodulesPath err
 '
 
+test_expect_success MINGW 'submodule paths disallows trailing spaces' '
+	git init super &&
+	test_must_fail git -C super submodule add ../upstream "sub " &&
+
+	: add "sub", then rename "sub" to "sub ", the hard way &&
+	git -C super submodule add ../upstream sub &&
+	tree=$(git -C super write-tree) &&
+	git -C super ls-tree $tree >tree &&
+	sed "s/sub/sub /" <tree >tree.new &&
+	tree=$(git -C super mktree <tree.new) &&
+	commit=$(echo with space | git -C super commit-tree $tree) &&
+	git -C super update-ref refs/heads/master $commit &&
+
+	test_must_fail git clone --recurse-submodules super dst 2>err &&
+	test_i18ngrep "sub " err
+'
+
 test_done
diff --git a/t/t9300-fast-import.sh b/t/t9300-fast-import.sh
index e707fb861e..17bb6dccbd 100755
--- a/t/t9300-fast-import.sh
+++ b/t/t9300-fast-import.sh
@@ -2143,12 +2143,27 @@ test_expect_success 'R: abort on receiving feature after data command' '
 	test_must_fail git fast-import <input
 '
 
+test_expect_success 'R: import-marks features forbidden by default' '
+	>git.marks &&
+	echo "feature import-marks=git.marks" >input &&
+	test_must_fail git fast-import <input &&
+	echo "feature import-marks-if-exists=git.marks" >input &&
+	test_must_fail git fast-import <input
+'
+
 test_expect_success 'R: only one import-marks feature allowed per stream' '
+	>git.marks &&
+	>git2.marks &&
 	cat >input <<-EOF &&
 	feature import-marks=git.marks
 	feature import-marks=git2.marks
 	EOF
 
+	test_must_fail git fast-import --allow-unsafe-features <input
+'
+
+test_expect_success 'R: export-marks feature forbidden by default' '
+	echo "feature export-marks=git.marks" >input &&
 	test_must_fail git fast-import <input
 '
 
@@ -2162,19 +2177,29 @@ test_expect_success 'R: export-marks feature results in a marks file being creat
 
 	EOF
 
-	cat input | git fast-import &&
+	git fast-import --allow-unsafe-features <input &&
 	grep :1 git.marks
 '
 
 test_expect_success 'R: export-marks options can be overridden by commandline options' '
-	cat input | git fast-import --export-marks=other.marks &&
-	grep :1 other.marks
+	cat >input <<-\EOF &&
+	feature export-marks=feature-sub/git.marks
+	blob
+	mark :1
+	data 3
+	hi
+
+	EOF
+	git fast-import --allow-unsafe-features \
+			--export-marks=cmdline-sub/other.marks <input &&
+	grep :1 cmdline-sub/other.marks &&
+	test_path_is_missing feature-sub
 '
 
 test_expect_success 'R: catch typo in marks file name' '
 	test_must_fail git fast-import --import-marks=nonexistent.marks </dev/null &&
 	echo "feature import-marks=nonexistent.marks" |
-	test_must_fail git fast-import
+	test_must_fail git fast-import --allow-unsafe-features
 '
 
 test_expect_success 'R: import and output marks can be the same file' '
@@ -2229,7 +2254,8 @@ test_expect_success 'R: --import-marks-if-exists' '
 test_expect_success 'R: feature import-marks-if-exists' '
 	rm -f io.marks &&
 
-	git fast-import --export-marks=io.marks <<-\EOF &&
+	git fast-import --export-marks=io.marks \
+			--allow-unsafe-features <<-\EOF &&
 	feature import-marks-if-exists=not_io.marks
 	EOF
 	test_must_be_empty io.marks &&
@@ -2240,7 +2266,8 @@ test_expect_success 'R: feature import-marks-if-exists' '
 	echo ":1 $blob" >expect &&
 	echo ":2 $blob" >>expect &&
 
-	git fast-import --export-marks=io.marks <<-\EOF &&
+	git fast-import --export-marks=io.marks \
+			--allow-unsafe-features <<-\EOF &&
 	feature import-marks-if-exists=io.marks
 	blob
 	mark :2
@@ -2253,7 +2280,8 @@ test_expect_success 'R: feature import-marks-if-exists' '
 	echo ":3 $blob" >>expect &&
 
 	git fast-import --import-marks=io.marks \
-			--export-marks=io.marks <<-\EOF &&
+			--export-marks=io.marks \
+			--allow-unsafe-features <<-\EOF &&
 	feature import-marks-if-exists=not_io.marks
 	blob
 	mark :3
@@ -2264,7 +2292,8 @@ test_expect_success 'R: feature import-marks-if-exists' '
 	test_cmp expect io.marks &&
 
 	git fast-import --import-marks-if-exists=not_io.marks \
-			--export-marks=io.marks <<-\EOF &&
+			--export-marks=io.marks \
+			--allow-unsafe-features <<-\EOF &&
 	feature import-marks-if-exists=io.marks
 	EOF
 	test_must_be_empty io.marks
@@ -2276,7 +2305,7 @@ test_expect_success 'R: import to output marks works without any content' '
 	feature export-marks=marks.new
 	EOF
 
-	cat input | git fast-import &&
+	git fast-import --allow-unsafe-features <input &&
 	test_cmp marks.out marks.new
 '
 
@@ -2286,7 +2315,7 @@ test_expect_success 'R: import marks prefers commandline marks file over the str
 	feature export-marks=marks.new
 	EOF
 
-	cat input | git fast-import --import-marks=marks.out &&
+	git fast-import --import-marks=marks.out --allow-unsafe-features <input &&
 	test_cmp marks.out marks.new
 '
 
@@ -2299,7 +2328,8 @@ test_expect_success 'R: multiple --import-marks= should be honoured' '
 
 	head -n2 marks.out > one.marks &&
 	tail -n +3 marks.out > two.marks &&
-	git fast-import --import-marks=one.marks --import-marks=two.marks <input &&
+	git fast-import --import-marks=one.marks --import-marks=two.marks \
+		--allow-unsafe-features <input &&
 	test_cmp marks.out combined.marks
 '
 
@@ -2312,7 +2342,7 @@ test_expect_success 'R: feature relative-marks should be honoured' '
 
 	mkdir -p .git/info/fast-import/ &&
 	cp marks.new .git/info/fast-import/relative.in &&
-	git fast-import <input &&
+	git fast-import --allow-unsafe-features <input &&
 	test_cmp marks.new .git/info/fast-import/relative.out
 '
 
@@ -2324,7 +2354,7 @@ test_expect_success 'R: feature no-relative-marks should be honoured' '
 	feature export-marks=non-relative.out
 	EOF
 
-	git fast-import <input &&
+	git fast-import --allow-unsafe-features <input &&
 	test_cmp marks.new non-relative.out
 '
 
@@ -2594,7 +2624,7 @@ test_expect_success 'R: quiet option results in no stats being output' '
 
 	EOF
 
-	cat input | git fast-import 2> output &&
+	git fast-import 2>output <input &&
 	test_must_be_empty output
 '
 
diff --git a/t/t9350-fast-export.sh b/t/t9350-fast-export.sh
index 2e4e214815..5ac9def433 100755
--- a/t/t9350-fast-export.sh
+++ b/t/t9350-fast-export.sh
@@ -600,9 +600,10 @@ test_expect_success 'directory becomes symlink'        '
 
 test_expect_success 'fast-export quotes pathnames' '
 	git init crazy-paths &&
+	test_config -C crazy-paths core.protectNTFS false &&
 	(cd crazy-paths &&
 	 blob=$(echo foo | git hash-object -w --stdin) &&
-	 git update-index --add \
+	 git -c core.protectNTFS=false update-index --add \
 		--cacheinfo 100644 $blob "$(printf "path with\\nnewline")" \
 		--cacheinfo 100644 $blob "path with \"quote\"" \
 		--cacheinfo 100644 $blob "path with \\backslash" \