1 files changed, 60 insertions, 0 deletions
diff --git a/iconvdata/bug-iconv15.c b/iconvdata/bug-iconv15.c
new file mode 100644
index 0000000000..cc04bd0313
--- /dev/null
+++ b/iconvdata/bug-iconv15.c
@@ -0,0 +1,60 @@
+/* Bug 28524: Conversion from ISO-2022-JP-3 with iconv
+   may emit spurious NUL character on state reset.
+   Copyright (C) The GNU Toolchain Authors.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <stddef.h>
+#include <iconv.h>
+#include <support/check.h>
+
+static int
+do_test (void)
+{
+  char in[] = "\x1b(I";
+  char *inbuf = in;
+  size_t inleft = sizeof (in) - 1;
+  char out[1];
+  char *outbuf = out;
+  size_t outleft = sizeof (out);
+  iconv_t cd;
+
+  cd = iconv_open ("UTF8", "ISO-2022-JP-3");
+  TEST_VERIFY_EXIT (cd != (iconv_t) -1);
+
+  /* First call to iconv should alter internal state.
+     Now, JISX0201_Kana_set is selected and
+     state value != ASCII_set.  */
+  TEST_VERIFY (iconv (cd, &inbuf, &inleft, &outbuf, &outleft) != (size_t) -1);
+
+  /* No bytes should have been added to
+     the output buffer at this point.  */
+  TEST_VERIFY (outbuf == out);
+  TEST_VERIFY (outleft == sizeof (out));
+
+  /* Second call shall emit spurious NUL character in unpatched glibc.  */
+  TEST_VERIFY (iconv (cd, NULL, NULL, &outbuf, &outleft) != (size_t) -1);
+
+  /* No characters are expected to be produced.  */
+  TEST_VERIFY (outbuf == out);
+  TEST_VERIFY (outleft == sizeof (out));
+
+  TEST_VERIFY_EXIT (iconv_close (cd) != -1);
+
+  return 0;
+}
+
+#include <support/test-driver.c>