From a76d96f7161b856113b15b256cd0faac15eaa648 Mon Sep 17 00:00:00 2001
From: Tim Felgentreff <timfelgentreff@gmail.com>
Date: Mon, 21 Dec 2020 20:40:08 +0100
Subject: [PATCH] add a function to get the local hostname
---
src/include/net_lowlevel.h | 2 ++
src/network/net_lowlevel.cpp | 20 ++++++++++++++++++++
2 files changed, 22 insertions(+)
diff --git a/src/include/net_lowlevel.h b/src/include/net_lowlevel.h
index 9c1a9b377..6d543b409 100644
--- a/src/include/net_lowlevel.h
+++ b/src/include/net_lowlevel.h
@@ -114,6 +114,8 @@ extern void NetExit();
extern unsigned long NetResolveHost(const std::string &host);
/// Get local IPs
extern int NetSocketAddr(unsigned long *ips, int maxAddr);
+/// Get local hostname
+extern std::string NetGetHostname();
/// Open a UDP Socket port. (param in network format)
extern Socket NetOpenUDP(unsigned long ip, int port);
diff --git a/src/network/net_lowlevel.cpp b/src/network/net_lowlevel.cpp
index 976b72b67..05457d01c 100644
--- a/src/network/net_lowlevel.cpp
+++ b/src/network/net_lowlevel.cpp
@@ -206,6 +206,26 @@ unsigned long NetResolveHost(const std::string &host)
return INADDR_NONE;
}
+/**
+ * Return the system hostname.
+ */
+std::string NetGetHostname()
+{
+ char hostname_buffer[256];
+#ifdef _WIN32
+ DWORD hostname_size = (DWORD)sizeof(hostname_buffer);
+ if (GetComputerNameA(hostname_buffer, &hostname_size)) {
+ return std::string(hostname_buffer);
+ }
+#else
+ size_t hostname_size = sizeof(hostname_buffer);
+ if (gethostname(hostname_buffer, hostname_size) == 0) {
+ return std::string(hostname_buffer);
+ }
+#endif
+ return "localhost";
+}
+
/**
** Get IP-addrs of local interfaces from Network file descriptor
**