1 files changed, 100 insertions, 0 deletions

diff --git a/firmware/export/pathfuncs.h b/firmware/export/pathfuncs.h
new file mode 100644
index 0000000000..26eb4a1067
--- /dev/null
+++ b/firmware/export/pathfuncs.h
@@ -0,0 +1,100 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2014 by Michael Sevakis
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef _PATHFUNCS_H_
+#define _PATHFUNCS_H_
+
+#include <sys/types.h>
+#define __need_size_t
+#include <stddef.h>
+#include <stdbool.h>
+#include "config.h"
+
+/* useful char constants that could be reconfigured if desired */
+#define PATH_SEPCH    '/'
+#define PATH_SEPSTR   "/"
+#define PATH_ROOTSTR  "/"
+#define PATH_BADSEPCH '\\'
+#define PATH_DRVSEPCH ':'
+
+/* a nicer way to check for "." and ".." than two strcmp() calls */
+static inline bool is_dotdir_name(const char *name)
+{
+    return name[0] == '.' && (!name[1] || (name[1] == '.' && !name[2]));
+}
+
+static inline bool name_is_dot(const char *name)
+{
+    return name[0] == '.' && !name[1];
+}
+
+static inline bool name_is_dot_dot(const char *name)
+{
+    return name[0] == '.' && name[1] == '.' && !name[2];
+}
+
+/* return a pointer to the character following path separators */
+#define GOBBLE_PATH_SEPCH(p) \
+    ({ int _c;                          \
+       const char *_p = (p);            \
+       while ((_c = *_p) == PATH_SEPCH) \
+            ++_p;                       \
+       _p; })
+
+/* return a pointer to the character following a path component which may
+   be a separator or the terminating nul */
+#define GOBBLE_PATH_COMP(p) \
+    ({ int _c;                                \
+       const char *_p = (p);                  \
+       while ((_c = *_p) && _c != PATH_SEPCH) \
+           ++_p;                              \
+       _p; })
+
+/* does the character terminate a path component? */
+#define IS_COMP_TERMINATOR(c) \
+    ({ int _c = (c);               \
+       !_c || _c == PATH_SEPCH; })
+
+#ifdef HAVE_MULTIVOLUME
+int path_strip_volume(const char *name, const char **nameptr, bool greedy);
+int get_volume_name(int volume, char *name);
+#endif
+
+int path_strip_drive(const char *name, const char **nameptr, bool greedy);
+size_t path_trim_whitespace(const char *name, const char **nameptr);
+size_t path_basename(const char *name, const char **nameptr);
+size_t path_dirname(const char *name, const char **nameptr);
+size_t path_strip_trailing_separators(const char *name, const char **nameptr);
+void path_correct_separators(char *dstpath, const char *path);
+
+/* constants useable in basepath and component */
+#define PA_SEP_HARD NULL /* separate even if base is empty */
+#define PA_SEP_SOFT ""   /* separate only if base is nonempty */
+size_t path_append(char *buffer, const char *basepath, const char *component,
+                   size_t bufsize);
+ssize_t parse_path_component(const char **pathp, const char **namep);
+
+/* return true if path begins with a root '/' component and is not NULL */
+static inline bool path_is_absolute(const char *path)
+{
+    return path && path[0] == PATH_SEPCH;
+}
+
+#endif /* _PATHFUNCS_H_ */