rt-thread/examples/file/listdir.c

/*
 * Copyright (c) 2006-2020, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2010-02-10     Bernard      first version
 * 2020-04-12     Jianjia Ma   add msh cmd
 */
#include <rtthread.h>
#include <dfs_posix.h>

void list_dir(const char* path)
{
    char * fullpath;
	DIR *dir;

	dir = opendir(path);
	if (dir != RT_NULL)
	{
		struct dirent* dirent;
		struct stat s;

	    fullpath = rt_malloc(256);
	    if (fullpath == RT_NULL)
	    {
	        rt_kprintf("no memory\n");
	        return;
	    }

		do
		{
			dirent = readdir(dir);
			if (dirent == RT_NULL) break;
			rt_memset(&s, 0, sizeof(struct stat));

			/* build full path for each file */
			rt_sprintf(fullpath, "%s/%s", path, dirent->d_name);

			stat(fullpath, &s);
			if ( s.st_mode & S_IFDIR )
			{
				rt_kprintf("%s\t\t<DIR>\n", dirent->d_name);
			}
			else
			{
				rt_kprintf("%s\t\t%lu\n", dirent->d_name, s.st_size);
			}
		} while (dirent != RT_NULL);

		closedir(dir);
	}
	else
	{
	    rt_kprintf("open %s directory failed\n", path);
	}

	rt_free(fullpath);
}

#ifdef RT_USING_FINSH
#include <finsh.h>
FINSH_FUNCTION_EXPORT(list_dir, list directory);

#ifdef FINSH_USING_MSH
static void cmd_list_dir(int argc, char *argv[])
{
    char* filename;

    if(argc == 2)
    {
        filename = argv[1];
    }
    else
    {
        rt_kprintf("Usage: list_dir [file_path]\n");
        return;
    }
    list_dir(filename);
}
FINSH_FUNCTION_EXPORT_ALIAS(cmd_list_dir, __cmd_list_dir, list directory);
#endif /* FINSH_USING_MSH */
#endif /* RT_USING_FINSH */