struct stat结构体的详解和用法

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//! 需要包含de头文件

#include <sys/types.h>

#include <sys/stat.h>

S_ISLNK(st_mode)：是否是一个连接.
S_ISREG(st_mode)：是否是一个常规文件.
S_ISDIR(st_mode)：是否是一个目录
S_ISCHR(st_mode)：是否是一个字符设备.
S_ISBLK(st_mode)：是否是一个块设备
S_ISFIFO(st_mode)：是否 是一个FIFO文件.
S_ISSOCK(st_mode)：是否是一个SOCKET文件

int stat(const char *filename, struct stat *buf); //! prototype,原型

struct stat
{

dev_t st_dev; /* ID of device containing file -文件所在设备的ID*/

ino_t st_ino; /* inode number -inode节点号*/

mode_t st_mode; /* protection -保护模式?*/

nlink_t st_nlink; /* number of hard links -链向此文件的连接数(硬连接)*/

uid_t st_uid; /* user ID of owner -user id*/

gid_t st_gid; /* group ID of owner - group id*/

dev_t st_rdev; /* device ID (if special file) -设备号，针对设备文件*/

off_t st_size; /* total size, in bytes -文件大小，字节为单位*/

blksize_t st_blksize; /* blocksize for filesystem I/O -系统块的大小*/

blkcnt_t st_blocks; /* number of blocks allocated -文件所占块数*/

time_t st_atime; /* time of last access -最近存取时间*/

time_t st_mtime; /* time of last modification -最近修改时间*/

time_t st_ctime; /* time of last status change - */

};

[cpp] view plaincopy



#include <iostream>

#include <ctime>

#include <sys/types.h>

#include <sys/stat.h>

using namespace std;

int
main ()
{
struct stat buf;

int result;

result = stat ("./Makefile", &buf);

if (result != 0)
{
perror ("Failed ^_^");
}
else
{

//! 文件的大小，字节为单位

cout << "size of the file in bytes: " << buf.st_size << endl;

//! 文件创建的时间

cout << "time of creation of the file: " << ctime (&buf.st_ctime) <<

endl;

//! 最近一次修改的时间

cout << "time of last modification of the file: " <<

ctime (&buf.st_mtime) << endl;

//! 最近一次访问的时间

cout << "time of last access of the file: " << ctime (&buf.st_atime)

<< endl;
}

return 0;

}

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$ ./test

size of the file in bytes: 36

time of creation of the file: Sun May 24 18:38:10 2009

time of last modification of the file: Sun May 24 18:38:10 2009

time of last access of the file: Sun May 24 18:38:13 2009