1 files changed, 54 insertions, 0 deletions
diff --git a/src/KM_fileio.cpp b/src/KM_fileio.cpp
index 5149d35..ed8aa67 100644
--- a/src/KM_fileio.cpp
+++ b/src/KM_fileio.cpp
@@ -43,6 +43,11 @@ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define _rmdir rmdir
 #endif
 
+// only needed by GetExecutablePath()
+#if defined(KM_MACOSX)
+#include <mach-o/dyld.h>
+#endif
+
 using namespace Kumu;
 
 #ifdef KM_WIN32
@@ -626,6 +631,55 @@ Kumu::PathMatchGlob::Match(const std::string& s) const {
 
 #endif
 
+
+//------------------------------------------------------------------------------------------
+
+#define X_BUFSIZE 1024
+
+//
+std::string
+Kumu::GetExecutablePath(const std::string& default_path)
+{
+  char path[X_BUFSIZE] = {0};
+  bool success = false;
+
+#if defined(KM_WIN32)
+  DWORD size = X_BUFSIZE;
+  DWORD rc = GetModuleFileName(0, path, size);
+  success = ( rc != 0 );
+#elif defined(KM_MACOSX)
+  uint32_t size = X_BUFSIZE;
+  int rc = _NSGetExecutablePath(path, &size);
+  success = ( rc != -1 );
+#elif defined(__linux__)
+  size_t size = X_BUFSIZE;
+  ssize_t rc = readlink("/proc/self/exe", path, size);
+  success = ( rc != -1 );
+#elif defined(__OpenBSD__) || defined(__FreeBSD__)
+  size_t size = X_BUFSIZE;
+  ssize_t rc = readlink("/proc/curproc/file", path, size);
+  success = ( rc != -1 );
+#elif defined(__FreeBSD__)
+  size_t size = X_BUFSIZE;
+  ssize_t rc = readlink("/proc/curproc/file", path, size);
+  success = ( rc != -1 );
+#elif defined(__NetBSD__)
+  size_t size = X_BUFSIZE;
+  ssize_t rc = readlink("/proc/curproc/file", path, size);
+  success = ( rc != -1 );
+#else
+#error GetExecutablePath --> Create a method for obtaining the executable name
+#endif
+
+  if ( success )
+    {
+      return Kumu::PathMakeCanonical(path);
+    }
+
+  return default_path;
+}
+
+
 //------------------------------------------------------------------------------------------
 // portable aspects of the file classes