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