关于readdir返回值中struct dirent.d_type的取值问题
原网页链接
http://www.gnu.org/software/libc/manual/html_node/Directory-Entries.html
原文及翻译
混在一起写了
unsigned char d_type
This is the type of the file, possibly unknown. The following constants are defined for its value:
DT_UNKNOWN
The type is unknown. Only some filesystems have full support to return the type of the file, others might always return this value.
类型未知。少数文件系统会出现此函数不支持的文件类型,另一些则总是返回这个值。译者注:总之这个值是为了应对不兼容的文件系统而设置的。
DT_REG
A regular file.
常规文件
DT_DIR
A directory.
目录
DT_FIFO
A named pipe, or FIFO. See FIFO Special Files.
一个命名管道,或FIFO。
DT_SOCK
A local-domain socket.
套接字
DT_CHR
A character device.
字符设备
DT_BLK
A block device.
块设备
DT_LNK
A symbolic link.
符号链接
d_type的具体数值
以下内容转自http://blog.csdn.net/angle_birds/article/details/8503039
d_type表示档案类型: enum
{
DT_UNKNOWN = 0,
# define DT_UNKNOWN DT_UNKNOWN
DT_FIFO = 1,
# define DT_FIFO DT_FIFO
DT_CHR = 2,
# define DT_CHR DT_CHR
DT_DIR = 4,
# define DT_DIR DT_DIR
DT_BLK = 6,
# define DT_BLK DT_BLK
DT_REG = 8,
# define DT_REG DT_REG
DT_LNK = 10,
# define DT_LNK DT_LNK
DT_SOCK = 12,
# define DT_SOCK DT_SOCK
DT_WHT = 14
# define DT_WHT DT_WHT
};