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-rwxr-xr-xt/t4254-am-corrupt.sh84
1 files changed, 84 insertions, 0 deletions
diff --git a/t/t4254-am-corrupt.sh b/t/t4254-am-corrupt.sh
new file mode 100755
index 0000000..45f1d4f
--- /dev/null
+++ b/t/t4254-am-corrupt.sh
@@ -0,0 +1,84 @@
+#!/bin/sh
+
+test_description='git am with corrupt input'
+
+TEST_PASSES_SANITIZE_LEAK=true
+. ./test-lib.sh
+
+make_mbox_with_nul () {
+ space=' '
+ q_nul_in_subject=
+ q_nul_in_body=
+ while test $# -ne 0
+ do
+ case "$1" in
+ subject) q_nul_in_subject='=00' ;;
+ body) q_nul_in_body='=00' ;;
+ esac &&
+ shift
+ done &&
+ cat <<-EOF
+ From ec7364544f690c560304f5a5de9428ea3b978b26 Mon Sep 17 00:00:00 2001
+ From: A U Thor <author@example.com>
+ Date: Sun, 19 Apr 2020 13:42:07 +0700
+ Subject: [PATCH] =?ISO-8859-1?q?=C4=CB${q_nul_in_subject}=D1=CF=D6?=
+ MIME-Version: 1.0
+ Content-Type: text/plain; charset=ISO-8859-1
+ Content-Transfer-Encoding: quoted-printable
+
+ abc${q_nul_in_body}def
+ ---
+ diff --git a/afile b/afile
+ new file mode 100644
+ index 0000000000..e69de29bb2
+ --$space
+ 2.26.1
+ EOF
+}
+
+test_expect_success setup '
+ # Note the missing "+++" line:
+ cat >bad-patch.diff <<-\EOF &&
+ From: A U Thor <au.thor@example.com>
+ diff --git a/f b/f
+ index 7898192..6178079 100644
+ --- a/f
+ @@ -1 +1 @@
+ -a
+ +b
+ EOF
+
+ echo a >f &&
+ git add f &&
+ test_tick &&
+ git commit -m initial
+'
+
+# This used to fail before, too, but with a different diagnostic.
+# fatal: unable to write file '(null)' mode 100644: Bad address
+# Also, it had the unwanted side-effect of deleting f.
+test_expect_success 'try to apply corrupted patch' '
+ test_when_finished "git am --abort" &&
+ test_must_fail git -c advice.amWorkDir=false am bad-patch.diff 2>actual &&
+ echo "error: git diff header lacks filename information (line 4)" >expected &&
+ test_path_is_file f &&
+ test_cmp expected actual
+'
+
+test_expect_success "NUL in commit message's body" '
+ test_when_finished "git am --abort" &&
+ make_mbox_with_nul body >body.patch &&
+ test_must_fail git am body.patch 2>err &&
+ grep "a NUL byte in commit log message not allowed" err
+'
+
+test_expect_success "NUL in commit message's header" "
+ test_when_finished 'git am --abort' &&
+ make_mbox_with_nul subject >subject.patch &&
+ test_must_fail git mailinfo msg patch <subject.patch 2>err &&
+ grep \"a NUL byte in 'Subject' is not allowed\" err &&
+ test_must_fail git am subject.patch 2>err &&
+ grep \"a NUL byte in 'Subject' is not allowed\" err
+"
+
+test_done