1 files changed, 21 insertions, 0 deletions
diff --git a/src/cc1/sys.c b/src/cc1/sys.c
new file mode 100644
index 0000000..693062a
--- /dev/null
+++ b/src/cc1/sys.c
@@ -0,0 +1,21 @@
+#include "sys.h"
+#include <libgen.h>
+#include <linux/limits.h>
+#include <unistd.h>
+#include "../lib/ducc.h"
+
+static char* get_self_path() {
+    char* buf = calloc(PATH_MAX, sizeof(char));
+    ssize_t len = readlink("/proc/self/exe", buf, PATH_MAX - 1);
+    if (len == -1 || len == PATH_MAX - 1) {
+        return NULL;
+    }
+    buf[len] = '\0';
+    return buf;
+}
+
+// It returns a path not including final / except for root directory.
+char* get_self_dir() {
+    char* path = get_self_path();
+    return dirname(path);
+}