Function _try_readlink

components/dfs/dfs_v2/src/dfs_file.c:124–142

* @brief Attempt to read the target of a symbolic link * * This function tries to read the contents of a symbolic link file. It first looks up * the dentry for the given path, checks if it's a symlink, and then calls the filesystem's * readlink operation if available. * * @param[in] path The path of the symbolic link to read * @param[in] mnt The mount point containing the symbolic link * @

 * @return int Length of the link target on success, -1 on failure
 */
static int _try_readlink(const char *path, struct dfs_mnt *mnt, char *link)
{
    int ret = -1;
    struct dfs_dentry *dentry = dfs_dentry_lookup(mnt, path, 0);

    if (dentry && dentry->vnode->type == FT_SYMLINK)
    {
        if (mnt->fs_ops->readlink)
        {
            if (dfs_is_mounted(mnt) == 0)
            {
                ret = mnt->fs_ops->readlink(dentry, link, DFS_PATH_MAX);
            }
        }
    }
    dfs_dentry_unref(dentry);

    return ret;
}

/**
 * @brief Normalize a path by combining base path and link path