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#include "test/jemalloc_test.h"
TEST_BEGIN(test_overflow)
{
unsigned nhchunks;
size_t mib[4];
size_t sz, miblen, max_size_class;
void *p;
sz = sizeof(unsigned);
assert_d_eq(mallctl("arenas.nhchunks", (void *)&nhchunks, &sz, NULL, 0),
0, "Unexpected mallctl() error");
miblen = sizeof(mib) / sizeof(size_t);
assert_d_eq(mallctlnametomib("arenas.hchunk.0.size", mib, &miblen), 0,
"Unexpected mallctlnametomib() error");
mib[2] = nhchunks - 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));
}
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