[BZ #2126]

	* sysdeps/i386/i686/strtok.S: Store pointer to NUL byte if NULL is
	returned.
	* sysdeps/i386/strtok.S: Likewise.
	* sysdeps/x86_64/strtok.S: Likewise.
	* string/Makefile (tests): Add bug-strtok1.
	* string/bug-strtok1.c: New file.

1 files changed, 45 insertions, 0 deletions

diff --git a/string/bug-strtok1.c b/string/bug-strtok1.c
new file mode 100644
index 0000000000..da30acf2e6
--- /dev/null
+++ b/string/bug-strtok1.c
@@ -0,0 +1,45 @@
+/* See BZ #2126.  */
+#include <string.h>
+#include <stdio.h>
+
+static int
+do_test (void)
+{
+  const char str[] = "axaaba";
+  char *token;
+  char *cp;
+  char *l;
+  int result = 0;
+
+  puts ("test strtok");
+  cp = strdupa (str);
+  printf ("cp = %p, len = %zu\n", cp, strlen (cp));
+  token = strtok (cp, "ab");
+  result |= token == NULL || strcmp (token, "x");
+  printf ("token: %s (%d)\n", token ? token : "NULL", result);
+  token = strtok(0, "ab");
+  result |= token != NULL;
+  printf ("token: %s (%d)\n", token ? token : "NULL", result);
+  token = strtok(0, "a");
+  result |= token != NULL;
+  printf ("token: %s (%d)\n", token ? token : "NULL", result);
+
+  puts ("test strtok_r");
+  cp = strdupa (str);
+  size_t len = strlen (cp);
+  printf ("cp = %p, len = %zu\n", cp, len);
+  token = strtok_r (cp, "ab", &l);
+  result |= token == NULL || strcmp (token, "x");
+  printf ("token: %s, next = %p (%d)\n", token ? token : "NULL", l, result);
+  token = strtok_r(0, "ab", &l);
+  result |= token != NULL || l != cp + len;
+  printf ("token: %s, next = %p (%d)\n", token ? token : "NULL", l, result);
+  token = strtok_r(0, "a", &l);
+  result |= token != NULL || l != cp + len;
+  printf ("token: %s,  next = %p (%d)\n", token ? token : "NULL", l, result);
+
+  return result;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"