fixed

include/make_path.h

@@ -0,0 +1,39 @@
+#ifndef _MAKE_PATH_H
+#define _MAKE_PATH_H
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+char *mu_make_path(const char *prog_name, const char *src, const char *dst) {
+	int flag = 0;
+
+	if (src == NULL) {
+		flag = 1;
+		src = "";
+	}
+
+	if (dst == NULL) {
+		flag = 1;
+		dst = "";
+	}
+
+	size_t len = strlen(src) + strlen(dst) + 2;
+	char *full_path = malloc(len + 1);
+	if (full_path == NULL) {
+		if (prog_name != NULL)
+			fprintf(stderr, "%s: malloc() failed\n", prog_name);
+
+		return NULL;
+	}
+
+	if (flag || src[strlen(src) - 1] == '/')
+		snprintf(full_path, len, "%s%s", src, dst);
+
+	else
+		snprintf(full_path, len, "%s/%s", src, dst);
+
+	return full_path;
+}
+
+#endif