| // RUN: %clangxx -O0 -g %s -o %t && %run %t 2>&1 | FileCheck %s |
| // |
| // UNSUPPORTED: linux, solaris |
| |
| #include <cstdlib> |
| #include <ctime> |
| #include <cstdio> |
| #include <inttypes.h> |
| |
| void print_buf(unsigned char *buf, size_t buflen) { |
| printf("buf '"); |
| for (auto i = 0; i < buflen; i ++) |
| printf("%" PRIx8, buf[i]); |
| printf("'\n"); |
| } |
| |
| void test_seed() { |
| #ifdef __NetBSD__ |
| time_t now = ::time(nullptr); |
| arc4random_addrandom((unsigned char *)&now, sizeof(now)); |
| #endif |
| } |
| |
| void test_arc4random() { |
| printf("test_arc4random\n"); |
| auto i = arc4random(); |
| print_buf((unsigned char *)&i, sizeof(i)); |
| } |
| |
| void test_arc4random_uniform() { |
| printf("test_arc4random_uniform\n"); |
| auto i = arc4random_uniform(1024); |
| print_buf((unsigned char *)&i, sizeof(i)); |
| } |
| |
| void test_arc4random_buf10() { |
| printf("test_arc4random_buf10\n"); |
| char buf[10]; |
| #ifdef __NetBSD__ |
| arc4random_stir(); |
| #endif |
| arc4random_buf(buf, sizeof(buf)); |
| print_buf((unsigned char *)buf, sizeof(buf)); |
| } |
| |
| void test_arc4random_buf256() { |
| printf("test_arc4random_buf256\n"); |
| char buf[256]; |
| #ifdef __NetBSD__ |
| arc4random_stir(); |
| #endif |
| arc4random_buf(buf, sizeof(buf)); |
| print_buf((unsigned char *)buf, sizeof(buf)); |
| } |
| |
| int main(void) { |
| test_seed(); |
| test_arc4random(); |
| test_arc4random_uniform(); |
| test_arc4random_buf10(); |
| test_arc4random_buf256(); |
| return 0; |
| // CHECK: test_arc4random |
| // CHECK: buf '{{.*}}' |
| // CHECK: test_arc4random_uniform |
| // CHECK: buf '{{.*}}' |
| // CHECK: test_arc4random_buf10 |
| // CHECK: buf '{{.*}}' |
| // CHECK: test_arc4random_buf256 |
| // CHECK: buf '{{.*}}' |
| } |