From 75076106b95e32098b96f505358c0176fbcb074b Mon Sep 17 00:00:00 2001
From: Kevin Zheng <kevinz5000@gmail.com>
Date: Mon, 7 Jan 2019 18:31:15 -0600
Subject: [PATCH] Implement getCurrentExecutableLocation() on FreeBSD (#3688)

---
 src/utils/separate_process.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/utils/separate_process.cpp b/src/utils/separate_process.cpp
index 19ec9b924..88193a28f 100644
--- a/src/utils/separate_process.cpp
+++ b/src/utils/separate_process.cpp
@@ -34,6 +34,11 @@
 #  include <errno.h>
 #endif
 
+#ifdef __FreeBSD__
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#endif
+
 #ifdef ANDROID
 #include <dlfcn.h>
 #include <fstream>
@@ -58,6 +63,15 @@ std::string SeparateProcess::getCurrentExecutableLocation()
         return file_manager->getFileSystem()->getAbsolutePath(path).c_str();
     }
     return "";
+#elif defined (__FreeBSD__)
+    char path[PATH_MAX];
+    size_t len = PATH_MAX;
+    const int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1};
+    if (sysctl(&mib[0], 4, &path, &len, NULL, 0) == 0)
+    {
+        return file_manager->getFileSystem()->getAbsolutePath(path).c_str();
+    }
+    return "";
 #else
     // Assume Linux
     return file_manager->getFileSystem()->getAbsolutePath("/proc/self/exe")