[root@localhost linux]# cat mstat.c
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <time.h>
#include <stdlib.h>
#include <stdio.h>

int
main(int argc, char **argv)
{
        struct stat buf;
        mode_t mode;
        char type[80];
        int fd;


        if (argc !=2) {
                puts("USEAGE: mstat {file}");
                exit(EXIT_FAILURE);
        }

        if ((fd = open(argv[1],O_RDONLY)) < 0) {
                perror("open");
                exit(EXIT_FAILURE);
        }

        if ((fstat(fd,&buf)) < 0) {
                perror("fstat");
                exit(EXIT_FAILURE);
        }
        mode = buf.st_mode;
        printf("   FILE: %s\n",argv[1]);
        printf("  INODE: %ld\n",buf.st_ino);
        printf(" DEVICE: %d,%d\n",major(buf.st_dev),
                                  minor(buf.st_dev));
        printf("   MODE: %#o\n",mode & ~(S_IFMT));
        printf("  LINKS: %d\n",buf.st_nlink);
        printf("    UID: %d\n",buf.st_uid);
        printf("    GID: %d\n",buf.st_gid);

        if (S_ISLNK(mode))
                strcpy(type,"Symbolic line");
        else if (S_ISREG(mode))
                strcpy(type,"Regular file");
        else if (S_ISDIR(mode))
                strcpy(type,"Directory");
        else if (S_ISCHR(mode))
                strcpy(type,"Character device");
        else if (S_ISBLK(mode))
                strcpy(type,"Block device");
        else if (S_ISFIFO(mode))
                strcpy(type,"FIFO");
        else if (S_ISSOCK(mode))
                strcpy(type,"Socket");
        else
                strcpy(type,"Unknow type");

        printf("    TYPE: %s\n",type);
        printf("    SIZE: %ld\n",buf.st_size);
        printf("BLK SIZE: %ld\n",buf.st_blksize);
        printf("  BLOCKS: %d\n",(int)buf.st_blocks);
        printf("ACCESSED: %s",ctime(&buf.st_atime));
        printf("MODIFIED: %s",ctime(&buf.st_mtime));
        printf(" CHANGED: %s",ctime(&buf.st_ctime));

        if(close(fd) < 0){
                perror("close");
                exit(EXIT_FAILURE);

        }
        exit(EXIT_SUCCESS);
}