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[compiler-rt][rtsan] getsockname interception. #123409

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Merged
merged 1 commit into from
Jan 18, 2025
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[compiler-rt][rtsan] getsockname interception. #123409

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12 changes: 12 additions & 0 deletions compiler-rt/lib/rtsan/rtsan_interceptors_posix.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -829,6 +829,17 @@ INTERCEPTOR(int, getnameinfo, const struct sockaddr *sa, socklen_t salen,
return REAL(getnameinfo)(sa, salen, host, hostlen, serv, servlen, flags);
}

#if SANITIZER_INTERCEPT_GETSOCKNAME
INTERCEPTOR(int, getsockname, int socket, struct sockaddr *sa,
socklen_t *salen) {
__rtsan_notify_intercepted_call("getsockname");
return REAL(getsockname)(socket, sa, salen);
}
#define RTSAN_MAYBE_INTERCEPT_GETSOCKNAME INTERCEPT_FUNCTION(getsockname)
#else
#define RTSAN_MAYBE_INTERCEPT_GETSOCKNAME
#endif

INTERCEPTOR(int, bind, int socket, const struct sockaddr *address,
socklen_t address_len) {
__rtsan_notify_intercepted_call("bind");
Expand Down Expand Up @@ -1189,6 +1200,7 @@ void __rtsan::InitializeInterceptors() {
INTERCEPT_FUNCTION(shutdown);
INTERCEPT_FUNCTION(socket);
RTSAN_MAYBE_INTERCEPT_ACCEPT4;
RTSAN_MAYBE_INTERCEPT_GETSOCKNAME;

RTSAN_MAYBE_INTERCEPT_SELECT;
INTERCEPT_FUNCTION(pselect);
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10 changes: 10 additions & 0 deletions compiler-rt/lib/rtsan/tests/rtsan_test_interceptors_posix.cpp
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Expand Up @@ -1153,6 +1153,16 @@ TEST(TestRtsanInterceptors, ShutdownOnASocketDiesWhenRealtime) {
ExpectNonRealtimeSurvival(Func);
}

#if SANITIZER_INTERCEPT_GETSOCKNAME
TEST(TestRtsanInterceptors, GetsocknameOnASocketDiesWhenRealtime) {
sockaddr addr{};
socklen_t len{};
auto Func = [&]() { getsockname(0, &addr, &len); };
ExpectRealtimeDeath(Func, "getsockname");
ExpectNonRealtimeSurvival(Func);
}
#endif

/*
I/O Multiplexing
*/
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