| #include "test/jemalloc_test.h" |
| |
| TEST_BEGIN(test_overflow) { |
| unsigned nlextents; |
| size_t mib[4]; |
| size_t sz, miblen, max_size_class; |
| void *p; |
| |
| sz = sizeof(unsigned); |
| assert_d_eq(mallctl("arenas.nlextents", (void *)&nlextents, &sz, NULL, |
| 0), 0, "Unexpected mallctl() error"); |
| |
| miblen = sizeof(mib) / sizeof(size_t); |
| assert_d_eq(mallctlnametomib("arenas.lextent.0.size", mib, &miblen), 0, |
| "Unexpected mallctlnametomib() error"); |
| mib[2] = nlextents - 1; |
| |
| sz = sizeof(size_t); |
| assert_d_eq(mallctlbymib(mib, miblen, (void *)&max_size_class, &sz, |
| NULL, 0), 0, "Unexpected mallctlbymib() error"); |
| |
| assert_ptr_null(malloc(max_size_class + 1), |
| "Expected OOM due to over-sized allocation request"); |
| assert_ptr_null(malloc(SIZE_T_MAX), |
| "Expected OOM due to over-sized allocation request"); |
| |
| assert_ptr_null(calloc(1, max_size_class + 1), |
| "Expected OOM due to over-sized allocation request"); |
| assert_ptr_null(calloc(1, SIZE_T_MAX), |
| "Expected OOM due to over-sized allocation request"); |
| |
| p = malloc(1); |
| assert_ptr_not_null(p, "Unexpected malloc() OOM"); |
| assert_ptr_null(realloc(p, max_size_class + 1), |
| "Expected OOM due to over-sized allocation request"); |
| assert_ptr_null(realloc(p, SIZE_T_MAX), |
| "Expected OOM due to over-sized allocation request"); |
| free(p); |
| } |
| TEST_END |
| |
| int |
| main(void) { |
| return (test( |
| test_overflow)); |
| } |