stat函数

#include <sys/stat.h>
#include <sys/types.h>
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

void report(struct stat *ptr);
int JugeFileExist(char *lFileName);

int main(int argc, char ** argv)
{
    if(argc < 2)
    {
        printf("参数个数错误，应为2个!\n");
        return -1;
    }

    char path[128];
    memset(path, 0, sizeof(path));
    strcpy(path, argv[1]);
    printf("path = [%s]\n", path);
    struct stat ptr;
    memset(&ptr, 0, sizeof(ptr));
    printf("1*********************************\n");
    stat(path, &ptr);
    printf("st_mode = [%o]\n", ptr.st_mode);
    int iRet = ptr.st_mode & S_IFREG;
    printf("iRet = [%o]\n", iRet);
    printf("iRet = [%d]\n", iRet);
    if(iRet > 0)
    {

    }

    printf("2*********************************\n");
    report(&ptr);
    return 0;
}


/***********************************************************
 * 函    数: JugeFileExist()
 * 功能描述: 判断文件是否存在
 * 输入参数：lFilename    -    长文件名
 * 返    回：0-文件存在;1-文件不存在
 * 流程描述：
 *    说    明：
 * 修改记录:
 * [修改人] [日期] – [描述]
***********************************************************/
int JugeFileExist(char *lFileName)
{

    struct stat statbuf;
    memset(&statbuf,0,sizeof(statbuf));
    stat(lFileName,&statbuf);
    printf("st_mode = [%o]\n", statbuf.st_mode);
    int iRet = statbuf.st_mode & S_IFREG;
    printf("iRet = [%o]\n", iRet);
    printf("iRet = [%d]\n", iRet);
    if(iRet > 0)
        return 0;
    else
        return 1;

}


void report(struct stat *ptr)
{

    printf("3*********************************\n");
    printf("The major device no is:%d\n",major(ptr->st_dev));/*主设备号*/
    printf("The minor device no is:%d\n",minor(ptr->st_dev));/*从设备号*/
    printf("The file's node number is:%d\n",ptr->st_ino);/*文件i节点号*/
    printf("The file's access mode is:10进制=[%d]，8进制=[%o], 16进制=[%X]\n",ptr->st_mode, ptr->st_mode, ptr->st_mode);/*文件的访问模式*/
    printf("The file's hard link number is:%d\n",ptr->st_nlink);/*文件的硬链接数目*/
    printf("The file's user id is:%d\n",ptr->st_uid);/*文件拥有者的ID*/
    printf("The file's group id is:%d\n",ptr->st_gid);/*文件的组ID*/
    printf("The file's size is:%d\n",ptr->st_size);/*文件的大小*/
    printf("The block size is:%d\n",ptr->st_blksize);/*文件占用的块数量*/
    printf("The number of allocated blocks is:%d\n",ptr->st_blocks);/*文件分配块数量*/
    struct tm*accesstime,*lmodifytime,*lchangetime;/*访问时间，修改时间，最后一个改变时间（属性）*/
    accesstime=localtime(&(ptr->st_atime));
    lmodifytime=localtime(&(ptr->st_mtime));
    lchangetime=localtime(&(ptr->st_ctime));
    printf("The last access time is [%02d:%02d:%02d]\n",accesstime->tm_hour,accesstime->tm_min,accesstime->tm_sec);
    printf("The last modify time is [%02d:%02d:%02d]\n",lmodifytime->tm_hour,lmodifytime->tm_min,lmodifytime->tm_sec);
    printf("The last change time is [%02d:%02d:%02d]\n",lchangetime->tm_hour,lchangetime->tm_min,lchangetime->tm_sec);

}