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 }
36