blob: c9dcf3ecbae5301c61d92e56bf58fd047214b90b [file] [log] [blame]
// RUN: %clangxx_msan -O0 %s -o %t && %run %t
#include <sys/types.h>
#include <sys/socket.h>
#include <netdb.h>
#include <stdlib.h>
void poison_stack_ahead() {
char buf[100000];
// With -O0 this poisons a large chunk of stack.
int main(void) {
struct addrinfo *ai;
// This should trigger loading of libnss_dns and friends.
// Those libraries are typically uninstrumented.They will call strlen() on a
// stack-allocated buffer, which is very likely to be poisoned. Test that we
// don't report this as an UMR.
int res = getaddrinfo("not-in-etc-hosts", NULL, NULL, &ai);
return 0;