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

int
main(int argc, char *argv[])
{
	struct stat sb;

	if (argc != 2) {
		fprintf(stderr, "Usage: %s <pathname>\n", argv[0]);
		exit(EXIT_FAILURE);
	}

	if (stat(argv[1], &sb) == -1) {
		perror("stat");
		exit(EXIT_FAILURE);
	}

	printf("File type:                ");

	switch (sb.st_mode & S_IFMT) {
	case S_IFBLK:  printf("block device\n");            break;
	case S_IFCHR:  printf("character device\n");        break;
	case S_IFDIR:  printf("directory\n");               break;
	case S_IFIFO:  printf("FIFO/pipe\n");               break;
	case S_IFLNK:  printf("symlink\n");                 break;
	case S_IFREG:  printf("regular file\n");            break;
	case S_IFSOCK: printf("socket\n");                  break;
	default:       printf("unknown?\n");                break;
	}

	printf("I-node number:            %ld\n", (long) sb.st_ino);

	printf("Mode:                     %lo (octal)\n",
			(unsigned long) sb.st_mode);

	printf("Link count:               %ld\n", (long) sb.st_nlink);
	printf("Ownership:                UID=%ld   GID=%ld\n",
			(long) sb.st_uid, (long) sb.st_gid);

	printf("Preferred I/O block size: %ld bytes\n",
			(long) sb.st_blksize);
	printf("File size:                %lld bytes\n",
			(long long) sb.st_size);
	printf("Blocks allocated:         %lld\n",
			(long long) sb.st_blocks);

	struct tm *tmp; char outstr[200];
	
	tmp = localtime(&sb.st_atime);	strftime(outstr, sizeof(outstr), "%F %T", tmp);
	printf("Last file access:         %s.%lu\n", outstr, sb.st_atim.tv_nsec);
	
	tmp = localtime(&sb.st_mtime);	strftime(outstr, sizeof(outstr), "%F %T", tmp);
	printf("Last file modification:   %s.%lu\n", outstr, sb.st_mtim.tv_nsec);

	tmp = localtime(&sb.st_ctime);	strftime(outstr, sizeof(outstr), "%F %T", tmp);
	printf("Last status change:       %s.%lu\n", outstr, sb.st_ctim.tv_nsec);
	
	exit(EXIT_SUCCESS);
}