Adding upstream version 3:4.8.30.upstream/3%4.8.30

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1683 insertions, 0 deletions

diff --git a/lib/vfs/path.c b/lib/vfs/path.c
new file mode 100644
index 0000000..c599e25
--- /dev/null
+++ b/lib/vfs/path.c
@@ -0,0 +1,1683 @@
+/*
+   Virtual File System path handlers
+
+   Copyright (C) 2011-2023
+   Free Software Foundation, Inc.
+
+   Written by:
+   Slava Zanko <slavazanko@gmail.com>, 2011, 2013
+   Andrew Borodin <aborodin@vmail.ru>, 2013-2022
+
+   This file is part of the Midnight Commander.
+
+   The Midnight Commander 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 3 of the License,
+   or (at your option) any later version.
+
+   The Midnight Commander is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * \file
+ * \brief Source: Virtual File System: path handlers
+ * \author Slava Zanko
+ * \date 2011
+ */
+
+
+#include <config.h>
+
+#include <errno.h>
+
+#include "lib/global.h"
+#include "lib/strutil.h"
+#include "lib/util.h"           /* mc_build_filename() */
+#include "lib/serialize.h"
+
+#include "vfs.h"
+#include "utilvfs.h"
+#include "xdirentry.h"
+#include "path.h"
+
+extern GPtrArray *vfs__classes_list;
+
+/*** global variables ****************************************************************************/
+
+/*** file scope macro definitions ****************************************************************/
+
+/*** file scope type declarations ****************************************************************/
+
+/*** forward declarations (file scope functions) *************************************************/
+
+/*** file scope variables ************************************************************************/
+
+/* --------------------------------------------------------------------------------------------- */
+/*** file scope functions ************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+static gboolean
+path_magic (const char *path)
+{
+    struct stat buf;
+
+    return (stat (path, &buf) != 0);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+/**
+ * Splits path extracting vfs part.
+ *
+ * Splits path
+ * \verbatim /p1#op/inpath \endverbatim
+ * into
+ * \verbatim inpath,op; \endverbatim
+ * returns which vfs it is.
+ * What is left in path is p1. You still want to g_free(path), you DON'T
+ * want to free neither *inpath nor *op
+ */
+
+static struct vfs_class *
+_vfs_split_with_semi_skip_count (char *path, const char **inpath, const char **op,
+                                 size_t skip_count)
+{
+    char *semi;
+    char *slash;
+    struct vfs_class *ret;
+
+    if (path == NULL)
+        vfs_die ("Cannot split NULL");
+
+    semi = strrstr_skip_count (path, "#", skip_count);
+
+    if ((semi == NULL) || (!path_magic (path)))
+        return NULL;
+
+    slash = strchr (semi, PATH_SEP);
+    *semi = '\0';
+
+    if (op != NULL)
+        *op = NULL;
+
+    if (inpath != NULL)
+        *inpath = NULL;
+
+    if (slash != NULL)
+        *slash = '\0';
+
+    ret = vfs_prefix_to_class (semi + 1);
+    if (ret != NULL)
+    {
+        if (op != NULL)
+            *op = semi + 1;
+        if (inpath != NULL)
+            *inpath = slash != NULL ? slash + 1 : NULL;
+        return ret;
+    }
+
+    if (slash != NULL)
+        *slash = PATH_SEP;
+
+    *semi = '#';
+    ret = _vfs_split_with_semi_skip_count (path, inpath, op, skip_count + 1);
+    return ret;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * remove //, /./ and /../
+ *
+ * @return newly allocated string
+ */
+
+static char *
+vfs_canon (const char *path)
+{
+    char *result;
+
+    if (path == NULL)
+        vfs_die ("Cannot canonicalize NULL");
+
+    if (!IS_PATH_SEP (*path))
+    {
+        /* Relative to current directory */
+
+        char *local;
+
+        if (g_str_has_prefix (path, VFS_ENCODING_PREFIX))
+        {
+            /*
+               encoding prefix placed at start of string without the leading slash
+               should be autofixed by adding the leading slash
+             */
+            local = mc_build_filename (PATH_SEP_STR, path, (char *) NULL);
+        }
+        else
+        {
+            const char *curr_dir;
+
+            curr_dir = vfs_get_current_dir ();
+            local = mc_build_filename (curr_dir, path, (char *) NULL);
+        }
+        result = vfs_canon (local);
+        g_free (local);
+    }
+    else
+    {
+        /* Absolute path */
+
+        result = g_strdup (path);
+        canonicalize_pathname (result);
+    }
+
+    return result;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+#ifdef HAVE_CHARSET
+/** get encoding after last #enc: or NULL, if part does not contain #enc:
+ *
+ * @param path null-terminated string
+ * @param len the maximum length of path, where #enc: should be searched
+ *
+ * @return newly allocated string.
+ */
+
+static char *
+vfs_get_encoding (const char *path, ssize_t len)
+{
+    char *semi;
+
+    /* try found #enc: */
+    semi = g_strrstr_len (path, len, VFS_ENCODING_PREFIX);
+    if (semi == NULL)
+        return NULL;
+
+    if (semi == path || IS_PATH_SEP (semi[-1]))
+    {
+        char *slash;
+
+        semi += strlen (VFS_ENCODING_PREFIX);   /* skip "#enc:" */
+        slash = strchr (semi, PATH_SEP);
+        if (slash != NULL)
+            return g_strndup (semi, slash - semi);
+        return g_strdup (semi);
+    }
+
+    return vfs_get_encoding (path, semi - path);
+}
+#endif
+
+/* --------------------------------------------------------------------------------------------- */
+/**  Extract the hostname and username from the path
+ *
+ * Format of the path is [user@]hostname:port/remote-dir, e.g.:
+ *
+ * ftp://sunsite.unc.edu/pub/linux
+ * ftp://miguel@sphinx.nuclecu.unam.mx/c/nc
+ * ftp://tsx-11.mit.edu:8192/
+ * ftp://joe@foo.edu:11321/private
+ * ftp://joe:password@foo.se
+ *
+ * @param path_element is an input string to be parsed
+ * @param path is an input string to be parsed
+ *
+ * @return g_malloc()ed url info.
+ *         If the user is empty, e.g. ftp://@roxanne/private, and URL_USE_ANONYMOUS
+ *         is not set, then the current login name is supplied.
+ *         Return value is a g_malloc()ed structure with the pathname relative to the
+ *         host.
+ */
+
+static void
+vfs_path_url_split (vfs_path_element_t * path_element, const char *path)
+{
+    char *pcopy;
+    char *colon, *at, *rest;
+
+    path_element->port = 0;
+
+    pcopy = g_strdup (path);
+
+    /* search for any possible user */
+    at = strrchr (pcopy, '@');
+
+    /* We have a username */
+    if (at == NULL)
+        rest = pcopy;
+    else
+    {
+        const char *pend;
+        char *inner_colon;
+
+        pend = strchr (at, '\0');
+        *at = '\0';
+
+        inner_colon = strchr (pcopy, ':');
+        if (inner_colon != NULL)
+        {
+            *inner_colon = '\0';
+            inner_colon++;
+            path_element->password = g_strdup (inner_colon);
+        }
+
+        if (*pcopy != '\0')
+            path_element->user = g_strdup (pcopy);
+
+        if (pend == at + 1)
+            rest = at;
+        else
+            rest = at + 1;
+    }
+
+    /* Check if the host comes with a port spec, if so, chop it */
+    if (*rest != '[')
+        colon = strchr (rest, ':');
+    else
+    {
+        colon = strchr (++rest, ']');
+        if (colon != NULL)
+        {
+            *colon = '\0';
+            colon++;
+            *colon = '\0';
+            path_element->ipv6 = TRUE;
+        }
+    }
+
+    if (colon != NULL)
+    {
+        *colon = '\0';
+        /* cppcheck-suppress invalidscanf */
+        if (sscanf (colon + 1, "%d", &path_element->port) == 1)
+        {
+            if (path_element->port <= 0 || path_element->port >= 65536)
+                path_element->port = 0;
+        }
+        else
+            while (*(++colon) != '\0')
+            {
+                switch (*colon)
+                {
+                case 'C':
+                    path_element->port = 1;
+                    break;
+                case 'r':
+                    path_element->port = 2;
+                    break;
+                default:
+                    break;
+                }
+            }
+    }
+    path_element->host = g_strdup (rest);
+    g_free (pcopy);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * get VFS class for the given name
+ *
+ * @param class_name name of class
+ *
+ * @return pointer to class structure or NULL if class not found
+ */
+
+static struct vfs_class *
+vfs_get_class_by_name (const char *class_name)
+{
+    guint i;
+
+    if (class_name == NULL)
+        return NULL;
+
+    for (i = 0; i < vfs__classes_list->len; i++)
+    {
+        struct vfs_class *vfs = VFS_CLASS (g_ptr_array_index (vfs__classes_list, i));
+        if ((vfs->name != NULL) && (strcmp (vfs->name, class_name) == 0))
+            return vfs;
+    }
+
+    return NULL;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Check if path string contain URL-like elements
+ *
+ * @param path_str path
+ *
+ * @return TRUE if path is deprecated or FALSE otherwise
+ */
+
+static gboolean
+vfs_path_is_str_path_deprecated (const char *path_str)
+{
+    return strstr (path_str, VFS_PATH_URL_DELIMITER) == NULL;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/** Split path string to path elements by deprecated algorithm.
+ *
+ * @param path_str VFS-path
+ *
+ * @return pointer to newly created vfs_path_t object with filled path elements array.
+*/
+
+static vfs_path_t *
+vfs_path_from_str_deprecated_parser (char *path)
+{
+    vfs_path_t *vpath;
+    vfs_path_element_t *element;
+    struct vfs_class *class;
+    const char *local, *op;
+
+    vpath = vfs_path_new (FALSE);
+
+    while ((class = _vfs_split_with_semi_skip_count (path, &local, &op, 0)) != NULL)
+    {
+        char *url_params;
+        element = g_new0 (vfs_path_element_t, 1);
+        element->class = class;
+        if (local == NULL)
+            local = "";
+        element->path = vfs_translate_path_n (local);
+
+#ifdef HAVE_CHARSET
+        element->encoding = vfs_get_encoding (local, -1);
+        element->dir.converter =
+            (element->encoding != NULL) ? str_crt_conv_from (element->encoding) : INVALID_CONV;
+#endif
+
+        url_params = strchr (op, ':');  /* skip VFS prefix */
+        if (url_params != NULL)
+        {
+            *url_params = '\0';
+            url_params++;
+            vfs_path_url_split (element, url_params);
+        }
+
+        if (*op != '\0')
+            element->vfs_prefix = g_strdup (op);
+
+        g_array_prepend_val (vpath->path, element);
+    }
+    if (path[0] != '\0')
+    {
+        element = g_new0 (vfs_path_element_t, 1);
+        element->class = g_ptr_array_index (vfs__classes_list, 0);
+        element->path = vfs_translate_path_n (path);
+
+#ifdef HAVE_CHARSET
+        element->encoding = vfs_get_encoding (path, -1);
+        element->dir.converter =
+            (element->encoding != NULL) ? str_crt_conv_from (element->encoding) : INVALID_CONV;
+#endif
+        g_array_prepend_val (vpath->path, element);
+    }
+
+    return vpath;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/** Split path string to path elements by URL algorithm.
+ *
+ * @param path_str VFS-path
+ * @param flags    flags for converter
+ *
+ * @return pointer to newly created vfs_path_t object with filled path elements array.
+*/
+
+static vfs_path_t *
+vfs_path_from_str_uri_parser (char *path)
+{
+    vfs_path_t *vpath;
+    vfs_path_element_t *element;
+    char *url_delimiter;
+
+    vpath = vfs_path_new (path != NULL && !IS_PATH_SEP (*path));
+
+    while ((url_delimiter = g_strrstr (path, VFS_PATH_URL_DELIMITER)) != NULL)
+    {
+        char *vfs_prefix_start;
+        char *real_vfs_prefix_start = url_delimiter;
+
+        while (real_vfs_prefix_start > path && !IS_PATH_SEP (*real_vfs_prefix_start))
+            real_vfs_prefix_start--;
+        vfs_prefix_start = real_vfs_prefix_start;
+
+        if (IS_PATH_SEP (*vfs_prefix_start))
+            vfs_prefix_start += 1;
+
+        *url_delimiter = '\0';
+
+        element = g_new0 (vfs_path_element_t, 1);
+        element->class = vfs_prefix_to_class (vfs_prefix_start);
+        element->vfs_prefix = g_strdup (vfs_prefix_start);
+
+        url_delimiter += strlen (VFS_PATH_URL_DELIMITER);
+
+        if (element->class != NULL && (element->class->flags & VFSF_REMOTE) != 0)
+        {
+            char *slash_pointer;
+
+            slash_pointer = strchr (url_delimiter, PATH_SEP);
+            if (slash_pointer == NULL)
+            {
+                element->path = g_strdup ("");
+            }
+            else
+            {
+                element->path = vfs_translate_path_n (slash_pointer + 1);
+#ifdef HAVE_CHARSET
+                element->encoding = vfs_get_encoding (slash_pointer, -1);
+#endif
+                *slash_pointer = '\0';
+            }
+            vfs_path_url_split (element, url_delimiter);
+        }
+        else
+        {
+            element->path = vfs_translate_path_n (url_delimiter);
+#ifdef HAVE_CHARSET
+            element->encoding = vfs_get_encoding (url_delimiter, -1);
+#endif
+        }
+#ifdef HAVE_CHARSET
+        element->dir.converter =
+            (element->encoding != NULL) ? str_crt_conv_from (element->encoding) : INVALID_CONV;
+#endif
+        g_array_prepend_val (vpath->path, element);
+
+        if ((real_vfs_prefix_start > path && IS_PATH_SEP (*real_vfs_prefix_start)) ||
+            (real_vfs_prefix_start == path && !IS_PATH_SEP (*real_vfs_prefix_start)))
+            *real_vfs_prefix_start = '\0';
+        else
+            *(real_vfs_prefix_start + 1) = '\0';
+    }
+
+    if (path[0] != '\0')
+    {
+        element = g_new0 (vfs_path_element_t, 1);
+        element->class = g_ptr_array_index (vfs__classes_list, 0);
+        element->path = vfs_translate_path_n (path);
+#ifdef HAVE_CHARSET
+        element->encoding = vfs_get_encoding (path, -1);
+        element->dir.converter =
+            (element->encoding != NULL) ? str_crt_conv_from (element->encoding) : INVALID_CONV;
+#endif
+        g_array_prepend_val (vpath->path, element);
+    }
+
+    return vpath;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Add element's class info to result string (such as VFS name, host, encoding etc)
+ * This function used as helper only in vfs_path_tokens_get() function
+ *
+ * @param element current path element
+ * @param ret_tokens total tikens for return
+ * @param element_tokens accumulated element-only tokens
+ */
+
+static void
+vfs_path_tokens_add_class_info (const vfs_path_element_t * element, GString * ret_tokens,
+                                GString * element_tokens)
+{
+    if (((element->class->flags & VFSF_LOCAL) == 0 || ret_tokens->len > 0)
+        && element_tokens->len > 0)
+    {
+        GString *url_str;
+
+        if (ret_tokens->len > 0 && !IS_PATH_SEP (ret_tokens->str[ret_tokens->len - 1]))
+            g_string_append_c (ret_tokens, PATH_SEP);
+
+        g_string_append (ret_tokens, element->vfs_prefix);
+        g_string_append (ret_tokens, VFS_PATH_URL_DELIMITER);
+
+        url_str = vfs_path_build_url_params_str (element, TRUE);
+        if (url_str->len != 0)
+        {
+            g_string_append_len (ret_tokens, url_str->str, url_str->len);
+            g_string_append_c (ret_tokens, PATH_SEP);
+        }
+
+        g_string_free (url_str, TRUE);
+    }
+
+#ifdef HAVE_CHARSET
+    if (element->encoding != NULL)
+    {
+        if (ret_tokens->len > 0 && !IS_PATH_SEP (ret_tokens->str[ret_tokens->len - 1]))
+            g_string_append (ret_tokens, PATH_SEP_STR);
+        g_string_append (ret_tokens, VFS_ENCODING_PREFIX);
+        g_string_append (ret_tokens, element->encoding);
+        g_string_append (ret_tokens, PATH_SEP_STR);
+    }
+#endif
+
+    g_string_append (ret_tokens, element_tokens->str);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Strip path to home dir.
+ * @param dir pointer to string contains full path
+ */
+
+static char *
+vfs_path_strip_home (const char *dir)
+{
+    const char *home_dir = mc_config_get_home_dir ();
+
+    if (home_dir != NULL)
+    {
+        size_t len;
+
+        len = strlen (home_dir);
+
+        if (strncmp (dir, home_dir, len) == 0 && (IS_PATH_SEP (dir[len]) || dir[len] == '\0'))
+            return g_strdup_printf ("~%s", dir + len);
+    }
+
+    return g_strdup (dir);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*** public functions ****************************************************************************/
+/* --------------------------------------------------------------------------------------------- */
+
+#define vfs_append_from_path(appendfrom, is_relative) \
+{ \
+    if ((flags & VPF_STRIP_HOME) && element_index == 0 && \
+        (element->class->flags & VFSF_LOCAL) != 0) \
+    { \
+        char *stripped_home_str; \
+        stripped_home_str = vfs_path_strip_home (appendfrom); \
+        g_string_append (buffer, stripped_home_str); \
+        g_free (stripped_home_str); \
+    } \
+    else \
+    { \
+        if (!is_relative && !IS_PATH_SEP (*appendfrom) && *appendfrom != '\0' \
+            && (buffer->len == 0 || !IS_PATH_SEP (buffer->str[buffer->len - 1]))) \
+            g_string_append_c (buffer, PATH_SEP); \
+        g_string_append (buffer, appendfrom); \
+    } \
+}
+
+/**
+ * Convert first elements_count elements from vfs_path_t to string representation with flags.
+ *
+ * @param vpath pointer to vfs_path_t object
+ * @param elements_count count of first elements for convert
+ * @param flags for converter
+ *
+ * @return pointer to newly created string.
+ */
+
+char *
+vfs_path_to_str_flags (const vfs_path_t * vpath, int elements_count, vfs_path_flag_t flags)
+{
+    int element_index;
+    GString *buffer;
+#ifdef HAVE_CHARSET
+    GString *recode_buffer = NULL;
+#endif
+
+    if (vpath == NULL)
+        return NULL;
+
+    if (elements_count == 0 || elements_count > vfs_path_elements_count (vpath))
+        elements_count = vfs_path_elements_count (vpath);
+
+    if (elements_count < 0)
+        elements_count = vfs_path_elements_count (vpath) + elements_count;
+
+    buffer = g_string_new ("");
+
+    for (element_index = 0; element_index < elements_count; element_index++)
+    {
+        const vfs_path_element_t *element;
+        gboolean is_relative = vpath->relative && (element_index == 0);
+
+        element = vfs_path_get_by_index (vpath, element_index);
+        if (element->vfs_prefix != NULL)
+        {
+            GString *url_str;
+
+            if (!is_relative && (buffer->len == 0 || !IS_PATH_SEP (buffer->str[buffer->len - 1])))
+                g_string_append_c (buffer, PATH_SEP);
+
+            g_string_append (buffer, element->vfs_prefix);
+            g_string_append (buffer, VFS_PATH_URL_DELIMITER);
+
+            url_str = vfs_path_build_url_params_str (element, !(flags & VPF_STRIP_PASSWORD));
+            if (url_str->len != 0)
+            {
+                g_string_append_len (buffer, url_str->str, url_str->len);
+                g_string_append_c (buffer, PATH_SEP);
+            }
+
+            g_string_free (url_str, TRUE);
+        }
+
+#ifdef HAVE_CHARSET
+        if ((flags & VPF_RECODE) == 0 && vfs_path_element_need_cleanup_converter (element))
+        {
+            if ((flags & VPF_HIDE_CHARSET) == 0)
+            {
+                if ((!is_relative)
+                    && (buffer->len == 0 || !IS_PATH_SEP (buffer->str[buffer->len - 1])))
+                    g_string_append (buffer, PATH_SEP_STR);
+                g_string_append (buffer, VFS_ENCODING_PREFIX);
+                g_string_append (buffer, element->encoding);
+            }
+
+            if (recode_buffer == NULL)
+                recode_buffer = g_string_sized_new (32);
+            else
+                g_string_set_size (recode_buffer, 0);
+
+            str_vfs_convert_from (element->dir.converter, element->path, recode_buffer);
+            vfs_append_from_path (recode_buffer->str, is_relative);
+        }
+        else
+#endif
+        {
+            vfs_append_from_path (element->path, is_relative);
+        }
+    }
+
+#ifdef HAVE_CHARSET
+    if (recode_buffer != NULL)
+        g_string_free (recode_buffer, TRUE);
+#endif
+
+    return g_string_free (buffer, FALSE);
+}
+
+#undef vfs_append_from_path
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Convert first elements_count elements from vfs_path_t to string representation.
+ *
+ * @param vpath pointer to vfs_path_t object
+ * @param elements_count count of first elements for convert
+ *
+ * @return pointer to newly created string.
+ */
+
+char *
+vfs_path_to_str_elements_count (const vfs_path_t * vpath, int elements_count)
+{
+    return vfs_path_to_str_flags (vpath, elements_count, VPF_NONE);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Split path string to path elements with flags for change parce process.
+ *
+ * @param path_str VFS-path
+ * @param flags flags for parser
+ *
+ * @return pointer to newly created vfs_path_t object with filled path elements array.
+ */
+
+vfs_path_t *
+vfs_path_from_str_flags (const char *path_str, vfs_path_flag_t flags)
+{
+    vfs_path_t *vpath;
+    char *path;
+
+    if (path_str == NULL)
+        return NULL;
+
+    if ((flags & VPF_NO_CANON) == 0)
+        path = vfs_canon (path_str);
+    else
+        path = g_strdup (path_str);
+
+    if (path == NULL)
+        return NULL;
+
+    if ((flags & VPF_USE_DEPRECATED_PARSER) != 0 && vfs_path_is_str_path_deprecated (path))
+        vpath = vfs_path_from_str_deprecated_parser (path);
+    else
+        vpath = vfs_path_from_str_uri_parser (path);
+
+    vpath->str = vfs_path_to_str_flags (vpath, 0, flags);
+    g_free (path);
+
+    return vpath;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Split path string to path elements.
+ *
+ * @param path_str VFS-path
+ *
+ * @return pointer to newly created vfs_path_t object with filled path elements array.
+ */
+
+vfs_path_t *
+vfs_path_from_str (const char *path_str)
+{
+    return vfs_path_from_str_flags (path_str, VPF_NONE);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*
+ * Create new vfs_path_t object.
+ *
+ * @return pointer to newly created vfs_path_t object.
+ */
+
+vfs_path_t *
+vfs_path_new (gboolean relative)
+{
+    vfs_path_t *vpath;
+
+    vpath = g_new0 (vfs_path_t, 1);
+    vpath->path = g_array_new (FALSE, TRUE, sizeof (vfs_path_element_t *));
+    vpath->relative = relative;
+
+    return vpath;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*
+ * Get count of path elements.
+ *
+ * @param vpath pointer to vfs_path_t object
+ *
+ * @return count of path elements.
+ */
+
+int
+vfs_path_elements_count (const vfs_path_t * vpath)
+{
+    return (vpath != NULL && vpath->path != NULL) ? vpath->path->len : 0;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Add vfs_path_element_t object to end of list in vfs_path_t object
+ * @param vpath pointer to vfs_path_t object
+ * @param path_element pointer to vfs_path_element_t object
+ */
+
+void
+vfs_path_add_element (vfs_path_t * vpath, const vfs_path_element_t * path_element)
+{
+    g_array_append_val (vpath->path, path_element);
+    g_free (vpath->str);
+    vpath->str = vfs_path_to_str_flags (vpath, 0, VPF_NONE);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*
+ * Get one path element by index.
+ *
+ * @param vpath pointer to vfs_path_t object.
+ *              May be NULL. In this case NULL is returned and errno set to 0.
+ * @param element_index element index. May have negative value (in this case count was started at
+ *                      the end of list). If @element_index is out of range, NULL is returned and
+ *                      errno set to EINVAL.
+ *
+ * @return path element
+ */
+
+const vfs_path_element_t *
+vfs_path_get_by_index (const vfs_path_t * vpath, int element_index)
+{
+    int n;
+
+    if (vpath == NULL)
+    {
+        errno = 0;
+        return NULL;
+    }
+
+    n = vfs_path_elements_count (vpath);
+
+    if (element_index < 0)
+        element_index += n;
+
+    if (element_index < 0 || element_index > n)
+    {
+        errno = EINVAL;
+        return NULL;
+    }
+
+    return g_array_index (vpath->path, vfs_path_element_t *, element_index);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*
+ * Clone one path element
+ *
+ * @param element pointer to vfs_path_element_t object
+ *
+ * @return Newly allocated path element
+ */
+
+vfs_path_element_t *
+vfs_path_element_clone (const vfs_path_element_t * element)
+{
+    vfs_path_element_t *new_element = g_new (vfs_path_element_t, 1);
+
+    new_element->user = g_strdup (element->user);
+    new_element->password = g_strdup (element->password);
+    new_element->host = g_strdup (element->host);
+    new_element->ipv6 = element->ipv6;
+    new_element->port = element->port;
+    new_element->path = g_strdup (element->path);
+    new_element->class = element->class;
+    new_element->vfs_prefix = g_strdup (element->vfs_prefix);
+#ifdef HAVE_CHARSET
+    new_element->encoding = g_strdup (element->encoding);
+    if (vfs_path_element_need_cleanup_converter (element) && new_element->encoding != NULL)
+        new_element->dir.converter = str_crt_conv_from (new_element->encoding);
+    else
+        new_element->dir.converter = element->dir.converter;
+#endif
+    new_element->dir.info = element->dir.info;
+
+    return new_element;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*
+ * Free one path element.
+ *
+ * @param element pointer to vfs_path_element_t object
+ *
+ */
+
+void
+vfs_path_element_free (vfs_path_element_t * element)
+{
+    if (element == NULL)
+        return;
+
+    g_free (element->user);
+    g_free (element->password);
+    g_free (element->host);
+    g_free (element->path);
+    g_free (element->vfs_prefix);
+
+#ifdef HAVE_CHARSET
+    g_free (element->encoding);
+
+    if (vfs_path_element_need_cleanup_converter (element))
+        str_close_conv (element->dir.converter);
+#endif
+
+    g_free (element);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*
+ * Clone path
+ *
+ * @param vpath pointer to vfs_path_t object
+ *
+ * @return Newly allocated path object
+ */
+
+vfs_path_t *
+vfs_path_clone (const vfs_path_t * vpath)
+{
+    vfs_path_t *new_vpath;
+    int vpath_element_index;
+
+    if (vpath == NULL)
+        return NULL;
+
+    new_vpath = vfs_path_new (vpath->relative);
+
+    for (vpath_element_index = 0; vpath_element_index < vfs_path_elements_count (vpath);
+         vpath_element_index++)
+    {
+        vfs_path_element_t *path_element;
+
+        path_element = vfs_path_element_clone (vfs_path_get_by_index (vpath, vpath_element_index));
+        g_array_append_val (new_vpath->path, path_element);
+    }
+    new_vpath->str = g_strdup (vpath->str);
+
+    return new_vpath;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*
+ * Free vfs_path_t object.
+ *
+ * @param vpath pointer to vfs_path_t object
+ * @param free_str if TRUE the string representation of vpath is freed as well
+ *
+ * @return the string representation of vpath (i.e. NULL if free_str is TRUE)
+ */
+
+char *
+vfs_path_free (vfs_path_t * vpath, gboolean free_str)
+{
+    int vpath_element_index;
+    char *ret;
+
+    if (vpath == NULL)
+        return NULL;
+
+    for (vpath_element_index = 0; vpath_element_index < vfs_path_elements_count (vpath);
+         vpath_element_index++)
+    {
+        vfs_path_element_t *path_element;
+
+        path_element = (vfs_path_element_t *) vfs_path_get_by_index (vpath, vpath_element_index);
+        vfs_path_element_free (path_element);
+    }
+
+    g_array_free (vpath->path, TRUE);
+
+    if (!free_str)
+        ret = vpath->str;
+    else
+    {
+        g_free (vpath->str);
+        ret = NULL;
+    }
+
+    g_free (vpath);
+
+    return ret;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/*
+ * Remove one path element by index
+ *
+ * @param vpath pointer to vfs_path_t object
+ * @param element_index element index. May have negative value (in this case count was started at the end of list).
+ *
+ */
+
+void
+vfs_path_remove_element_by_index (vfs_path_t * vpath, int element_index)
+{
+    vfs_path_element_t *element;
+
+    if ((vpath == NULL) || (vfs_path_elements_count (vpath) == 1))
+        return;
+
+    if (element_index < 0)
+        element_index = vfs_path_elements_count (vpath) + element_index;
+
+    element = (vfs_path_element_t *) vfs_path_get_by_index (vpath, element_index);
+    vpath->path = g_array_remove_index (vpath->path, element_index);
+    vfs_path_element_free (element);
+    g_free (vpath->str);
+    vpath->str = vfs_path_to_str_flags (vpath, 0, VPF_NONE);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/** Return VFS class for the given prefix */
+
+struct vfs_class *
+vfs_prefix_to_class (const char *prefix)
+{
+    guint i;
+
+    /* Avoid first class (localfs) that would accept any prefix */
+    for (i = 1; i < vfs__classes_list->len; i++)
+    {
+        struct vfs_class *vfs;
+
+        vfs = VFS_CLASS (g_ptr_array_index (vfs__classes_list, i));
+        if (vfs->which != NULL)
+        {
+            if (vfs->which (vfs, prefix) == -1)
+                continue;
+            return vfs;
+        }
+
+        if (vfs->prefix != NULL && strncmp (prefix, vfs->prefix, strlen (vfs->prefix)) == 0)
+            return vfs;
+    }
+
+    return NULL;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+#ifdef HAVE_CHARSET
+
+/**
+ * Check if need cleanup charset converter for vfs_path_element_t
+ *
+ * @param element part of path
+ *
+ * @return TRUE if need cleanup converter or FALSE otherwise
+ */
+
+gboolean
+vfs_path_element_need_cleanup_converter (const vfs_path_element_t * element)
+{
+    return (element->dir.converter != str_cnv_from_term && element->dir.converter != INVALID_CONV);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Change encoding for last part (vfs_path_element_t) of vpath
+ *
+ * @param vpath pointer to path structure
+ * encoding name of charset
+ *
+ * @return pointer to path structure (for use function in another functions)
+ */
+vfs_path_t *
+vfs_path_change_encoding (vfs_path_t * vpath, const char *encoding)
+{
+    vfs_path_element_t *path_element;
+
+    path_element = (vfs_path_element_t *) vfs_path_get_by_index (vpath, -1);
+    /* don't add current encoding */
+    if ((path_element->encoding != NULL) && (strcmp (encoding, path_element->encoding) == 0))
+        return vpath;
+
+    g_free (path_element->encoding);
+    path_element->encoding = g_strdup (encoding);
+
+    if (vfs_path_element_need_cleanup_converter (path_element))
+        str_close_conv (path_element->dir.converter);
+
+    path_element->dir.converter = str_crt_conv_from (path_element->encoding);
+
+    g_free (vpath->str);
+    vpath->str = vfs_path_to_str_flags (vpath, 0, VPF_NONE);
+    return vpath;
+}
+
+#endif
+
+/* --------------------------------------------------------------------------------------------- */
+
+/**
+ * Serialize vfs_path_t object to string
+ *
+ * @param vpath data for serialization
+ * @param error contain pointer to object for handle error code and message
+ *
+ * @return serialized vpath as newly allocated string
+ */
+
+char *
+vfs_path_serialize (const vfs_path_t * vpath, GError ** mcerror)
+{
+    mc_config_t *cpath;
+    ssize_t element_index;
+    char *ret_value;
+
+    mc_return_val_if_error (mcerror, FALSE);
+
+    if ((vpath == NULL) || (vfs_path_elements_count (vpath) == 0))
+    {
+        mc_propagate_error (mcerror, 0, "%s", "vpath object is empty");
+        return NULL;
+    }
+
+    cpath = mc_config_init (NULL, FALSE);
+
+    for (element_index = 0; element_index < vfs_path_elements_count (vpath); element_index++)
+    {
+        char groupname[BUF_TINY];
+        const vfs_path_element_t *element;
+
+        g_snprintf (groupname, sizeof (groupname), "path-element-%zd", element_index);
+        element = vfs_path_get_by_index (vpath, element_index);
+        /* convert one element to config group */
+
+        mc_config_set_string_raw (cpath, groupname, "path", element->path);
+        mc_config_set_string_raw (cpath, groupname, "class-name", element->class->name);
+#ifdef HAVE_CHARSET
+        mc_config_set_string_raw (cpath, groupname, "encoding", element->encoding);
+#endif
+        mc_config_set_string_raw (cpath, groupname, "vfs_prefix", element->vfs_prefix);
+
+        mc_config_set_string_raw (cpath, groupname, "user", element->user);
+        mc_config_set_string_raw (cpath, groupname, "password", element->password);
+        mc_config_set_string_raw (cpath, groupname, "host", element->host);
+        if (element->port != 0)
+            mc_config_set_int (cpath, groupname, "port", element->port);
+    }
+
+    ret_value = mc_serialize_config (cpath, mcerror);
+    mc_config_deinit (cpath);
+    return ret_value;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Deserialize string to vfs_path_t object
+ *
+ * @param data data for serialization
+ * @param error contain pointer to object for handle error code and message
+ *
+ * @return newly allocated vfs_path_t object
+ */
+
+vfs_path_t *
+vfs_path_deserialize (const char *data, GError ** mcerror)
+{
+    mc_config_t *cpath;
+    size_t element_index;
+    vfs_path_t *vpath;
+
+    mc_return_val_if_error (mcerror, FALSE);
+
+    cpath = mc_deserialize_config (data, mcerror);
+    if (cpath == NULL)
+        return NULL;
+
+    vpath = vfs_path_new (FALSE);
+
+    for (element_index = 0;; element_index++)
+    {
+        struct vfs_class *eclass;
+        vfs_path_element_t *element;
+        char *cfg_value;
+        char groupname[BUF_TINY];
+
+        g_snprintf (groupname, sizeof (groupname), "path-element-%zu", element_index);
+        if (!mc_config_has_group (cpath, groupname))
+            break;
+
+        cfg_value = mc_config_get_string_raw (cpath, groupname, "class-name", NULL);
+        eclass = vfs_get_class_by_name (cfg_value);
+        if (eclass == NULL)
+        {
+            vfs_path_free (vpath, TRUE);
+            g_set_error (mcerror, MC_ERROR, 0, "Unable to find VFS class by name '%s'", cfg_value);
+            g_free (cfg_value);
+            mc_config_deinit (cpath);
+            return NULL;
+        }
+        g_free (cfg_value);
+
+        element = g_new0 (vfs_path_element_t, 1);
+        element->class = eclass;
+        element->path = mc_config_get_string_raw (cpath, groupname, "path", NULL);
+
+#ifdef HAVE_CHARSET
+        element->encoding = mc_config_get_string_raw (cpath, groupname, "encoding", NULL);
+        element->dir.converter =
+            (element->encoding != NULL) ? str_crt_conv_from (element->encoding) : INVALID_CONV;
+#endif
+
+        element->vfs_prefix = mc_config_get_string_raw (cpath, groupname, "vfs_prefix", NULL);
+
+        element->user = mc_config_get_string_raw (cpath, groupname, "user", NULL);
+        element->password = mc_config_get_string_raw (cpath, groupname, "password", NULL);
+        element->host = mc_config_get_string_raw (cpath, groupname, "host", NULL);
+        element->port = mc_config_get_int (cpath, groupname, "port", 0);
+
+        vpath->path = g_array_append_val (vpath->path, element);
+    }
+
+    mc_config_deinit (cpath);
+    if (vfs_path_elements_count (vpath) == 0)
+    {
+        vfs_path_free (vpath, TRUE);
+        g_set_error (mcerror, MC_ERROR, 0, "No any path elements found");
+        return NULL;
+    }
+    vpath->str = vfs_path_to_str_flags (vpath, 0, VPF_NONE);
+
+    return vpath;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Build vfs_path_t object from arguments.
+ *
+ * @param first_element of path
+ * @param ... path tokens, terminated by NULL
+ *
+ * @return newly allocated vfs_path_t object
+ */
+
+vfs_path_t *
+vfs_path_build_filename (const char *first_element, ...)
+{
+    va_list args;
+    char *str_path;
+    vfs_path_t *vpath;
+
+    if (first_element == NULL)
+        return NULL;
+
+    va_start (args, first_element);
+    str_path = mc_build_filenamev (first_element, args);
+    va_end (args);
+    vpath = vfs_path_from_str (str_path);
+    g_free (str_path);
+    return vpath;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Append tokens to path object
+ *
+ * @param vpath path object
+ * @param first_element of path
+ * @param ... NULL-terminated strings
+ *
+ * @return newly allocated path object
+ */
+
+vfs_path_t *
+vfs_path_append_new (const vfs_path_t * vpath, const char *first_element, ...)
+{
+    va_list args;
+    char *str_path;
+    const char *result_str;
+    vfs_path_t *ret_vpath;
+
+    if (vpath == NULL || first_element == NULL)
+        return NULL;
+
+    va_start (args, first_element);
+    str_path = mc_build_filenamev (first_element, args);
+    va_end (args);
+
+    result_str = vfs_path_as_str (vpath);
+    ret_vpath = vfs_path_build_filename (result_str, str_path, (char *) NULL);
+    g_free (str_path);
+
+    return ret_vpath;
+
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+/**
+ * Append vpath_t tokens to path object
+ *
+ * @param first_vpath vpath objects
+ * @param ... NULL-terminated vpath objects
+ *
+ * @return newly allocated path object
+ */
+
+vfs_path_t *
+vfs_path_append_vpath_new (const vfs_path_t * first_vpath, ...)
+{
+    va_list args;
+    vfs_path_t *ret_vpath;
+    const vfs_path_t *current_vpath = first_vpath;
+
+    if (first_vpath == NULL)
+        return NULL;
+
+    ret_vpath = vfs_path_new (FALSE);
+
+    va_start (args, first_vpath);
+    do
+    {
+        int vindex;
+
+        for (vindex = 0; vindex < vfs_path_elements_count (current_vpath); vindex++)
+        {
+            vfs_path_element_t *path_element;
+
+            path_element = vfs_path_element_clone (vfs_path_get_by_index (current_vpath, vindex));
+            g_array_append_val (ret_vpath->path, path_element);
+        }
+        current_vpath = va_arg (args, const vfs_path_t *);
+    }
+    while (current_vpath != NULL);
+    va_end (args);
+
+    ret_vpath->str = vfs_path_to_str_flags (ret_vpath, 0, VPF_NONE);
+
+    return ret_vpath;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+/**
+ * get tockens count in path.
+ *
+ * @param vpath path object
+ *
+ * @return count of tokens
+ */
+
+size_t
+vfs_path_tokens_count (const vfs_path_t * vpath)
+{
+    size_t count_tokens = 0;
+    int element_index;
+
+    if (vpath == NULL)
+        return 0;
+
+    for (element_index = 0; element_index < vfs_path_elements_count (vpath); element_index++)
+    {
+        const vfs_path_element_t *element;
+        const char *token, *prev_token;
+
+        element = vfs_path_get_by_index (vpath, element_index);
+
+        for (prev_token = element->path; (token = strchr (prev_token, PATH_SEP)) != NULL;
+             prev_token = token + 1)
+        {
+            /* skip empty substring */
+            if (token != prev_token)
+                count_tokens++;
+        }
+
+        if (*prev_token != '\0')
+            count_tokens++;
+    }
+
+    return count_tokens;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+/**
+ * Get subpath by tokens
+ *
+ * @param vpath path object
+ * @param start_position first token for got/ Started from 0.
+ *        If negative, then position will be relative to end of path
+ * @param length count of tokens
+ *
+ * @return newly allocated string with path tokens separated by slash
+ */
+
+char *
+vfs_path_tokens_get (const vfs_path_t * vpath, ssize_t start_position, ssize_t length)
+{
+    GString *ret_tokens, *element_tokens;
+    int element_index;
+    size_t tokens_count = vfs_path_tokens_count (vpath);
+
+    if (vpath == NULL)
+        return NULL;
+
+    if (length == 0)
+        length = tokens_count;
+
+    if (length < 0)
+        length = tokens_count + length;
+
+    if (start_position < 0)
+        start_position = (ssize_t) tokens_count + start_position;
+
+    if (start_position < 0)
+        return NULL;
+
+    if (start_position >= (ssize_t) tokens_count)
+        return NULL;
+
+    if (start_position + (ssize_t) length > (ssize_t) tokens_count)
+        length = tokens_count - start_position;
+
+    ret_tokens = g_string_sized_new (32);
+    element_tokens = g_string_sized_new (32);
+
+    for (element_index = 0; element_index < vfs_path_elements_count (vpath); element_index++)
+    {
+        const vfs_path_element_t *element;
+        char **path_tokens, **iterator;
+
+        g_string_assign (element_tokens, "");
+        element = vfs_path_get_by_index (vpath, element_index);
+        path_tokens = g_strsplit (element->path, PATH_SEP_STR, -1);
+
+        for (iterator = path_tokens; *iterator != NULL; iterator++)
+        {
+            if (**iterator != '\0')
+            {
+                if (start_position == 0)
+                {
+                    if (length == 0)
+                    {
+                        vfs_path_tokens_add_class_info (element, ret_tokens, element_tokens);
+                        g_string_free (element_tokens, TRUE);
+                        g_strfreev (path_tokens);
+                        return g_string_free (ret_tokens, FALSE);
+                    }
+                    length--;
+                    if (element_tokens->len != 0)
+                        g_string_append_c (element_tokens, PATH_SEP);
+                    g_string_append (element_tokens, *iterator);
+                }
+                else
+                    start_position--;
+            }
+        }
+        g_strfreev (path_tokens);
+        vfs_path_tokens_add_class_info (element, ret_tokens, element_tokens);
+    }
+
+    g_string_free (element_tokens, TRUE);
+    return g_string_free (ret_tokens, !(start_position == 0 && length == 0));
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Get subpath by tokens
+ *
+ * @param vpath path object
+ * @param start_position first token for got/ Started from 0.
+ *        If negative, then position will be relative to end of path
+ * @param length count of tokens
+ *
+ * @return newly allocated path object with path tokens separated by slash
+ */
+
+vfs_path_t *
+vfs_path_vtokens_get (const vfs_path_t * vpath, ssize_t start_position, ssize_t length)
+{
+    char *str_tokens;
+    vfs_path_t *ret_vpath = NULL;
+
+    str_tokens = vfs_path_tokens_get (vpath, start_position, length);
+    if (str_tokens != NULL)
+    {
+        ret_vpath = vfs_path_from_str_flags (str_tokens, VPF_NO_CANON);
+        g_free (str_tokens);
+    }
+    return ret_vpath;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+
+/**
+ * Build URL parameters (such as user:pass @ host:port) from one path element object
+ *
+ * @param element path element
+ * @param keep_password TRUE or FALSE
+ *
+ * @return newly allocated string
+ */
+
+GString *
+vfs_path_build_url_params_str (const vfs_path_element_t * element, gboolean keep_password)
+{
+    GString *buffer;
+
+    if (element == NULL)
+        return NULL;
+
+    buffer = g_string_sized_new (64);
+
+    if (element->user != NULL)
+        g_string_append (buffer, element->user);
+
+    if (element->password != NULL && keep_password)
+    {
+        g_string_append_c (buffer, ':');
+        g_string_append (buffer, element->password);
+    }
+
+    if (element->host != NULL)
+    {
+        if ((element->user != NULL) || (element->password != NULL))
+            g_string_append_c (buffer, '@');
+        if (element->ipv6)
+            g_string_append_c (buffer, '[');
+        g_string_append (buffer, element->host);
+        if (element->ipv6)
+            g_string_append_c (buffer, ']');
+    }
+
+    if ((element->port) != 0 && (element->host != NULL))
+    {
+        g_string_append_c (buffer, ':');
+        g_string_append_printf (buffer, "%d", element->port);
+    }
+
+    return buffer;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Build pretty string representation of one path_element_t object
+ *
+ * @param element path element
+ *
+ * @return newly allocated string
+ */
+
+GString *
+vfs_path_element_build_pretty_path_str (const vfs_path_element_t * element)
+{
+    GString *url_params, *pretty_path;
+
+    pretty_path = g_string_new (element->class->prefix);
+    g_string_append (pretty_path, VFS_PATH_URL_DELIMITER);
+
+    url_params = vfs_path_build_url_params_str (element, FALSE);
+    g_string_append_len (pretty_path, url_params->str, url_params->len);
+    g_string_free (url_params, TRUE);
+
+    if (!IS_PATH_SEP (*element->path))
+        g_string_append_c (pretty_path, PATH_SEP);
+
+    g_string_append (pretty_path, element->path);
+    return pretty_path;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Compare two path objects as strings
+ *
+ * @param vpath1 first path object
+ * @param vpath2 second vpath object
+ *
+ * @return integer value like to strcmp.
+ */
+
+gboolean
+vfs_path_equal (const vfs_path_t * vpath1, const vfs_path_t * vpath2)
+{
+    const char *path1, *path2;
+    gboolean ret_val;
+
+    if (vpath1 == NULL || vpath2 == NULL)
+        return FALSE;
+
+    path1 = vfs_path_as_str (vpath1);
+    path2 = vfs_path_as_str (vpath2);
+
+    ret_val = strcmp (path1, path2) == 0;
+
+    return ret_val;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Compare two path objects as strings
+ *
+ * @param vpath1 first path object
+ * @param vpath2 second vpath object
+ * @param len number of first 'len' characters
+ *
+ * @return integer value like to strcmp.
+ */
+
+gboolean
+vfs_path_equal_len (const vfs_path_t * vpath1, const vfs_path_t * vpath2, size_t len)
+{
+    const char *path1, *path2;
+    gboolean ret_val;
+
+    if (vpath1 == NULL || vpath2 == NULL)
+        return FALSE;
+
+    path1 = vfs_path_as_str (vpath1);
+    path2 = vfs_path_as_str (vpath2);
+
+    ret_val = strncmp (path1, path2, len) == 0;
+
+    return ret_val;
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Calculate path length in string representation
+ *
+ * @param vpath path object
+ *
+ * @return length of path
+ */
+
+size_t
+vfs_path_len (const vfs_path_t * vpath)
+{
+    if (vpath == NULL)
+        return 0;
+
+    return strlen (vpath->str);
+}
+
+/* --------------------------------------------------------------------------------------------- */
+/**
+ * Convert relative vpath object to absolute
+ *
+ * @param vpath path object
+ *
+ * @return absolute path object
+ */
+
+vfs_path_t *
+vfs_path_to_absolute (const vfs_path_t * vpath)
+{
+    vfs_path_t *absolute_vpath;
+    const char *path_str;
+
+    if (!vpath->relative)
+        return vfs_path_clone (vpath);
+
+    path_str = vfs_path_as_str (vpath);
+    absolute_vpath = vfs_path_from_str (path_str);
+    return absolute_vpath;
+}
+
+/* --------------------------------------------------------------------------------------------- */