test/msan/getaddrinfo-positive.cc

   1 // RUN: %clangxx_msan -m64 -O0 %s -o %t && not %run %t >%t.out 2>&1
   2 // RUN: FileCheck %s < %t.out
   3 // RUN: %clangxx_msan -m64 -O3 %s -o %t && not %run %t >%t.out 2>&1
   4 // RUN: FileCheck %s < %t.out
   5
   6 #include <sys/types.h>
   7 #include <sys/socket.h>
   8 #include <netdb.h>
   9 #include <stdlib.h>
  10
  11 volatile int z;
  12
  13 int main(void) {
  14   struct addrinfo *ai;
  15   struct addrinfo hint;
  16   int res = getaddrinfo("localhost", NULL, NULL, &ai);
  17   if (ai) z = 1; // OK
  18   res = getaddrinfo("localhost", NULL, &hint, &ai);
  19   // CHECK: Uninitialized bytes in __interceptor_getaddrinfo at offset 0 inside [0x{{.*}}, 48)
  20   // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
  21   // CHECK: #0 {{.*}} in main {{.*}}getaddrinfo-positive.cc:[[@LINE-3]]
  22   return 0;
  23 }