1*d21b3d34SFangrui Song // RUN: %clangxx_msan -O0 %s -o %t && %run %t
2*d21b3d34SFangrui Song 
3*d21b3d34SFangrui Song #include <sys/types.h>
4*d21b3d34SFangrui Song #include <grp.h>
5*d21b3d34SFangrui Song #include <unistd.h>  // FreeBSD declares initgroups() here.
6*d21b3d34SFangrui Song 
main(void)7*d21b3d34SFangrui Song int main(void) {
8*d21b3d34SFangrui Song   initgroups("root", 0);
9*d21b3d34SFangrui Song   // The above fails unless you are root. Does not matter, MSan false positive
10*d21b3d34SFangrui Song   // (which we are testing for) happens anyway.
11*d21b3d34SFangrui Song   return 0;
12*d21b3d34SFangrui Song }
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