// RUN: %clangxx_asan -O0 -g %s -o %t && %env_asan_opts=handle_ioctl=1 not %run %t 2>&1 | FileCheck %s // RUN: %clangxx_asan -O3 -g %s -o %t && %env_asan_opts=handle_ioctl=1 not %run %t 2>&1 | FileCheck %s // RUN: %clangxx_asan -O0 -g %s -o %t && %run %t // RUN: %clangxx_asan -O3 -g %s -o %t && %run %t #include #include #include #include #include #if defined(__sun__) && defined(__svr4__) #include #endif int main(int argc, char **argv) { int fd = socket(AF_INET, SOCK_DGRAM, 0); int nonblock; int res = ioctl(fd, FIONBIO, &nonblock + 1); // CHECK: AddressSanitizer: stack-buffer-overflow // CHECK: READ of size 4 at // CHECK: {{#.* in main .*ioctl.cpp:}}[[@LINE-3]] assert(res == 0); close(fd); return 0; }