From 4a52690ca3459f0eb386a6331c5c4a072e77594b Mon Sep 17 00:00:00 2001
From: Brian Hodgins <bhodgins@300-baud.net>
Date: Wed, 19 Aug 2020 12:47:51 -0400
Subject: [PATCH] Added FreeBSD build support. Additionally adjusted Makefile
 for use with fetch instead of just wget. As of this commit all other systems
 other than FreeBSD should default to wget and its necessary options.
 Suppressed echo of svn command so that the warning message does not mislead
 anyone.

---
 Makefile             | 19 ++++++++++++++-----
 drivers/fs_utils.cpp | 11 +++++++++++
 drivers/raw_tty.cpp  |  4 ++++
 3 files changed, 29 insertions(+), 5 deletions(-)

diff --git a/Makefile b/Makefile
index 9c5e09b..795983f 100644
--- a/Makefile
+++ b/Makefile
@@ -2,6 +2,9 @@ ifeq ($(lua),)
 	lua=5.2
 endif
 
+WGET_PATH = $(shell which wget)
+WGET_OPTS = -O
+
 TARGET_EXEC ?= ocvm
 
 INC_DIRS ?= ./
@@ -40,7 +43,13 @@ ifeq ($(shell uname -s 2>/dev/null),Haiku)
 	SRCS+=$(wildcard $(SRC_DIRS)haiku/*.cpp)
 endif
 
-ifeq (, $(shell which wget))
+ifeq ($(shell uname -s 2>/dev/null), FreeBSD)
+	WGET_PATH = $(shell which fetch)
+	WGET_OPTS = -o 
+	CXX = g++
+endif
+
+ifeq (, $(WGET_PATH))
 	SRCS := $(filter-out $(SRC_DIRS)drivers/internet_http.cpp,$(SRCS))
 endif
 
@@ -64,10 +73,10 @@ system/.keep:
 	@echo Downloading OpenComputers system files
 	mkdir -p system
 	touch system/.keep
-	command -v svn && svn checkout https://github.com/MightyPirates/OpenComputers/trunk/src/main/resources/assets/opencomputers/loot system/loot || echo "\n\e[36;1mwarning: svn not found. The build will continue, you can manually prepare \`.system/\`\e[m\n"
-	wget https://raw.githubusercontent.com/MightyPirates/OpenComputers/master-MC1.7.10/src/main/resources/assets/opencomputers/lua/machine.lua -O system/machine.lua
-	wget https://raw.githubusercontent.com/MightyPirates/OpenComputers/master-MC1.7.10/src/main/resources/assets/opencomputers/lua/bios.lua -O system/bios.lua
-	wget https://raw.githubusercontent.com/MightyPirates/OpenComputers/master-MC1.7.10/src/main/resources/assets/opencomputers/font.hex -O system/font.hex
+	@command -v svn && svn checkout https://github.com/MightyPirates/OpenComputers/trunk/src/main/resources/assets/opencomputers/loot system/loot || echo "\n\e[36;1mwarning: svn not found. The build will continue, you can manually prepare \`.system/\`\e[m\n"
+	$(WGET_PATH) https://raw.githubusercontent.com/MightyPirates/OpenComputers/master-MC1.7.10/src/main/resources/assets/opencomputers/lua/machine.lua $(WGET_OPTS) system/machine.lua
+	$(WGET_PATH) https://raw.githubusercontent.com/MightyPirates/OpenComputers/master-MC1.7.10/src/main/resources/assets/opencomputers/lua/bios.lua $(WGET_OPTS) system/bios.lua
+	$(WGET_PATH) https://raw.githubusercontent.com/MightyPirates/OpenComputers/master-MC1.7.10/src/main/resources/assets/opencomputers/font.hex $(WGET_OPTS) system/font.hex
 
 .PHONY: clean
 
diff --git a/drivers/fs_utils.cpp b/drivers/fs_utils.cpp
index 7c16773..f52b3ae 100644
--- a/drivers/fs_utils.cpp
+++ b/drivers/fs_utils.cpp
@@ -12,6 +12,11 @@ using std::ofstream;
 #include <mach-o/dyld.h>
 #endif
 
+#ifdef __FreeBSD__
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#endif
+
 #include <string.h>
 #include <sys/stat.h>
 #include <unistd.h>
@@ -300,6 +305,11 @@ string proc_root()
     auto len = path.size();
     auto reduced = len < size ? len : size;
     ::memcpy(buf, path.data(), reduced);
+#elif __FreeBSD__
+    int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
+    size_t len = sizeof(buf);
+    sysctl(mib, 4, buf, &len, NULL, 0);
+
 #else
     ssize_t len = ::readlink("/proc/self/exe", buf, size);
     if (len >= size) // yikes, abort
@@ -311,6 +321,7 @@ string proc_root()
 
     buf[len] = 0;
     path = buf;
+    cerr << path << endl;
 
     // remove proc file name
     size_t last_slash = path.find_last_of("/");
diff --git a/drivers/raw_tty.cpp b/drivers/raw_tty.cpp
index b23a355..6146fc9 100644
--- a/drivers/raw_tty.cpp
+++ b/drivers/raw_tty.cpp
@@ -25,6 +25,10 @@
 #define KDSKBMODE 0x4B45 /* sets current keyboard mode */
 #endif
 
+#ifdef __FreeBSD__
+#include <sys/kbio.h> /* KDGKBMODE and KDSKBMODE */
+#endif
+
 #include <signal.h>
 #include <string.h> // memset
 #include <time.h>