1 files changed, 55 insertions, 0 deletions
diff --git a/test/asan/TestCases/atoll_strict.c b/test/asan/TestCases/atoll_strict.c
new file mode 100644
index 0000000000000..23405d2d220d8
--- /dev/null
+++ b/test/asan/TestCases/atoll_strict.c
@@ -0,0 +1,55 @@
+// Test strict_string_checks option in atoll function
+// RUN: %clang_asan %s -o %t
+// RUN: %run %t test1 2>&1
+// RUN: env ASAN_OPTIONS=$ASAN_OPTIONS:strict_string_checks=false %run %t test1 2>&1
+// RUN: env ASAN_OPTIONS=$ASAN_OPTIONS:strict_string_checks=true not %run %t test1 2>&1 | FileCheck %s --check-prefix=CHECK1
+// RUN: %run %t test2 2>&1
+// RUN: env ASAN_OPTIONS=$ASAN_OPTIONS:strict_string_checks=false %run %t test2 2>&1
+// RUN: env ASAN_OPTIONS=$ASAN_OPTIONS:strict_string_checks=true not %run %t test2 2>&1 | FileCheck %s --check-prefix=CHECK2
+// RUN: %run %t test3 2>&1
+// RUN: env ASAN_OPTIONS=$ASAN_OPTIONS:strict_string_checks=false %run %t test3 2>&1
+// RUN: env ASAN_OPTIONS=$ASAN_OPTIONS:strict_string_checks=true not %run %t test3 2>&1 | FileCheck %s --check-prefix=CHECK3
+
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
+void test1(char *array) {
+  // Last symbol is non-digit
+  memset(array, '1', 10);
+  array[9] = 'a';
+  long long r = atoll(array);
+  assert(r == 111111111);
+}
+
+void test2(char *array) {
+  // Single non-digit symbol
+  array[9] = 'a';
+  long long r = atoll(array + 9);
+  assert(r == 0);
+}
+
+void test3(char *array) {
+  // Incorrect number format
+  memset(array, ' ', 10);
+  array[9] = '-';
+  array[8] = '-';
+  long long r = atoll(array);
+  assert(r == 0);
+}
+
+int main(int argc, char **argv) {
+  char *array = (char*)malloc(10);
+  if (argc != 2) return 1;
+  if (!strcmp(argv[1], "test1")) test1(array);
+  // CHECK1: {{.*ERROR: AddressSanitizer: heap-buffer-overflow on address}}
+  // CHECK1: READ of size 11
+  if (!strcmp(argv[1], "test2")) test2(array);
+  // CHECK2: {{.*ERROR: AddressSanitizer: heap-buffer-overflow on address}}
+  // CHECK2: READ of size 2
+  if (!strcmp(argv[1], "test3")) test3(array);
+  // CHECK3: {{.*ERROR: AddressSanitizer: heap-buffer-overflow on address}}
+  // CHECK3: READ of size 11
+  free(array);
+  return 0;
+}