From a85824d853758c64a224f59f464e8a475543ae6e Mon Sep 17 00:00:00 2001
From: Matheus Garcia <tateusg@protonmail.com>
Date: Wed, 24 Dec 2025 15:58:09 -0300
Subject: [PATCH] FreeBSD

---
 src/public/minbase/minbase_identify.h |  3 +++
 src/public/tier0/platform_sockets.h   |  2 +-
 src/tier0/dbg.cpp                     | 22 +++++++++++++++++-----
 3 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/src/public/minbase/minbase_identify.h b/src/public/minbase/minbase_identify.h
index 98ae16636..2c47e80e6 100644
--- a/src/public/minbase/minbase_identify.h
+++ b/src/public/minbase/minbase_identify.h
@@ -166,6 +166,9 @@
 #elif defined( LINUX ) || defined( __LINUX__ ) || defined(linux) || defined(__linux) || defined(__linux__)
 	#define IsLinux() true
 	#define IsPosix() true
+#elif defined(__FreeBSD__)
+	#define IsFreeBSD() true
+	#define IsPosix() true
 #elif defined( _POSIX_VERSION ) || defined( POSIX ) || defined( VALVE_POSIX )
 	#define IsPosix() true
 #else
diff --git a/src/public/tier0/platform_sockets.h b/src/public/tier0/platform_sockets.h
index 5550c8882..51d1fdfda 100644
--- a/src/public/tier0/platform_sockets.h
+++ b/src/public/tier0/platform_sockets.h
@@ -112,7 +112,7 @@ typedef char SteamNetworkingErrMsg[ 1024 ];
 
 	#define PlatformSupportsRecvMsg() true
 
-	#ifdef __APPLE__
+	#if defined(__APPLE__) || defined(__FreeBSD__)
 		#define USE_POLL
 
 		// I can't get this to work on MacOS.  If someboddy believes that
diff --git a/src/tier0/dbg.cpp b/src/tier0/dbg.cpp
index dd31cc389..73ed8cbeb 100644
--- a/src/tier0/dbg.cpp
+++ b/src/tier0/dbg.cpp
@@ -33,8 +33,12 @@ using namespace SteamNetworkingSocketsLib;
 #include <sys/ptrace.h>
 #endif
 
-#if IsOSX()
-#include <sys/sysctl.h>
+#if IsOSX() || IsFreeBSD()
+	#include <sys/sysctl.h>
+	#if IsFreeBSD()
+		#include <sys/proc.h>
+		#include <sys/user.h>
+	#endif
 #endif
 
 #if IsPlaystation() && defined(_DEBUG)
@@ -45,7 +49,7 @@ bool Plat_IsInDebugSession()
 {
 #ifdef _WIN32
 	return (IsDebuggerPresent() != 0);
-#elif IsOSX()
+#elif IsOSX() || IsFreeBSD()
 	int mib[4];
 	struct kinfo_proc info;
 	size_t size;
@@ -54,9 +58,17 @@ bool Plat_IsInDebugSession()
 	mib[2] = KERN_PROC_PID;
 	mib[3] = getpid();
 	size = sizeof(info);
-	info.kp_proc.p_flag = 0;
+#if IsFreeBSD()
+	info.ki_paddr->p_flag = 0;
+#else
+	info.kp_proc.flag = 0;
+#endif
 	sysctl(mib,4,&info,&size,NULL,0);
-	return ((info.kp_proc.p_flag & P_TRACED) == P_TRACED);
+#if IsFreeBSD()
+	return ((info.ki_paddr->p_flag & P_TRACED) == P_TRACED);
+#else
+	return ((info.kp_proc.flag & P_TRACED) == P_TRACED);
+#endif
 #elif IsLinux()
 	static FILE *fp;
 	if ( !fp )