o getsockopt(2) 'level' argument should be 0, not SOCK_STREAM. It
does not hurt anything because uipc_ctloutput() does not check sopt->sopt_level. Pointed out by: ru MFC after: 1 week
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@ -43,7 +43,7 @@ getpeereid(int s, uid_t *euid, gid_t *egid)
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int error;
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xuclen = sizeof(xuc);
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error = getsockopt(s, SOCK_STREAM, LOCAL_PEERCRED, &xuc, &xuclen);
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error = getsockopt(s, 0, LOCAL_PEERCRED, &xuc, &xuclen);
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if (error != 0)
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return (error);
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if (xuc.cr_version != XUCRED_VERSION)
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