net: add new method Sock::SetSockOpt() that wraps setsockopt()

This will help to increase `Sock` usage and make more code mockable.

2 files changed, 15 insertions, 0 deletions

diff --git a/src/test/fuzz/util.cpp b/src/test/fuzz/util.cpp
index 6766fbf2d9..033c6e18d5 100644
--- a/src/test/fuzz/util.cpp
+++ b/src/test/fuzz/util.cpp
@@ -193,6 +193,19 @@ int FuzzedSock::GetSockOpt(int level, int opt_name, void* opt_val, socklen_t* op
     return 0;
 }
 
+int FuzzedSock::SetSockOpt(int, int, const void*, socklen_t) const
+{
+    constexpr std::array setsockopt_errnos{
+        ENOMEM,
+        ENOBUFS,
+    };
+    if (m_fuzzed_data_provider.ConsumeBool()) {
+        SetFuzzedErrNo(m_fuzzed_data_provider, setsockopt_errnos);
+        return -1;
+    }
+    return 0;
+}
+
 bool FuzzedSock::Wait(std::chrono::milliseconds timeout, Event requested, Event* occurred) const
 {
     constexpr std::array wait_errnos{
diff --git a/src/test/fuzz/util.h b/src/test/fuzz/util.h
index 6c91844633..580105e442 100644
--- a/src/test/fuzz/util.h
+++ b/src/test/fuzz/util.h
@@ -68,6 +68,8 @@ public:
 
     int GetSockOpt(int level, int opt_name, void* opt_val, socklen_t* opt_len) const override;
 
+    int SetSockOpt(int level, int opt_name, const void* opt_val, socklen_t opt_len) const override;
+
     bool Wait(std::chrono::milliseconds timeout, Event requested, Event* occurred = nullptr) const override;
 
     bool IsConnected(std::string& errmsg) const override;