1 // RUN: %clangxx_asan -O0 -g %s -o %t && %env_asan_opts=handle_ioctl=1 not %run %t 2>&1 | FileCheck %s 2 // RUN: %clangxx_asan -O3 -g %s -o %t && %env_asan_opts=handle_ioctl=1 not %run %t 2>&1 | FileCheck %s 3 4 // RUN: %clangxx_asan -O0 -g %s -o %t && %run %t 5 // RUN: %clangxx_asan -O3 -g %s -o %t && %run %t 6 7 #include <assert.h> 8 #include <stdlib.h> 9 #include <sys/ioctl.h> 10 #include <sys/socket.h> 11 #include <unistd.h> 12 main(int argc,char ** argv)13int main(int argc, char **argv) { 14 int fd = socket(AF_INET, SOCK_DGRAM, 0); 15 16 int nonblock; 17 int res = ioctl(fd, FIONBIO, &nonblock + 1); 18 // CHECK: AddressSanitizer: stack-buffer-overflow 19 // CHECK: READ of size 4 at 20 // CHECK: {{#.* in main .*ioctl.cc:}}[[@LINE-3]] 21 assert(res == 0); 22 close(fd); 23 return 0; 24 } 25