compiler-rt/test/sanitizer_common/TestCases/Linux/get_sock_peer_name.cpp

   1 // Test that ASan doesn't raise false alarm when getsockname and getpeername
   2 // are called with addrlen=nullptr;
   3 //
   4 // RUN: %clangxx %s -o %t && %run %t 2>&1
   5
   6 #include <assert.h>
   7 #include <errno.h>
   8 #include <netinet/in.h>
   9 #include <sys/socket.h>
  10
  11 int main() {
  12   const int fd = socket(AF_INET, SOCK_DGRAM, 0);
  13   assert(fd >= 0);
  14
  15   const sockaddr_in sin = {
  16       .sin_family = AF_INET,
  17       .sin_port = htons(1234),
  18       .sin_addr =
  19           {
  20               .s_addr = htonl(INADDR_LOOPBACK),
  21           },
  22   };
  23   assert(connect(fd, reinterpret_cast<const sockaddr *>(&sin), sizeof(sin)) ==
  24          0);
  25
  26   errno = 0;
  27   assert(getsockname(fd, nullptr, nullptr) == -1);
  28   assert(errno == EFAULT);
  29
  30   errno = 0;
  31   assert(getpeername(fd, nullptr, nullptr) == -1);
  32   assert(errno == EFAULT);
  33
  34   return 0;
  35 }