1 files changed, 27 insertions, 0 deletions

diff --git a/libbb/concat_path_file.c b/libbb/concat_path_file.c
new file mode 100644
index 000000000..9aae601a4
--- /dev/null
+++ b/libbb/concat_path_file.c
@@ -0,0 +1,27 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) many different people.
+ * If you wrote this, please acknowledge your work.
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+/* concatenate path and file name to new allocation buffer,
+ * not adding '/' if path name already has '/'
+*/
+
+#include "libbb.h"
+
+char *concat_path_file(const char *path, const char *filename)
+{
+        char *lc;
+
+        if (!path)
+                path = "";
+        lc = last_char_is(path, '/');
+        while (*filename == '/')
+                filename++;
+        return xasprintf("%s%s%s", path, (lc==NULL ? "/" : ""), filename);
+}