/**
* \brief Print on standard out the -ls arguments: number of i-nodes,blocks, permissions,
number of links, owner, group, last modification time and directory name.
symlinks.
*
* \param file_info with all file attributes read out from operating system.
*
* \return void
**/
static void combine_ls(const StatType* file_info)
{
int written = 0;
/* Print i-node */
written = fprintf(stdout, "%6lu", (unsigned long) file_info->st_ino);
if (written < 0)
{
print_error(strerror(errno));
}
/* Print number of blocks */
/* magic number divide by 2 depends on block size of file system.
* The st_blocks member of the stat structure returns:
* The total number of physical blocks of size 512 bytes actually allocated on disk.
see also http://stackoverflow.com/questions/1346807/how-does-stat-command-calculate-the-blocks-of-a-file
*/
written = fprintf(stdout, "%5lu ", (unsigned long) file_info->st_blocks / 2);
if (written < 0)
{
print_error(strerror(errno));
}
print_file_permissions(file_info);
/* Print number of hard links */
written = fprintf(stdout, "%2lu", (unsigned long) file_info->st_nlink);
if (written < 0)
{
print_error(strerror(errno));
}
print_user_group(file_info);
/* Print file size */
written = fprintf(stdout, "%13lu ", (unsigned long) file_info->st_size);
if (written < 0)
{
print_error(strerror(errno));
}
print_file_change_time(file_info);
}
void print_file_info (const const char * filename)
{
struct stat buf;
//获取文件的stat结构
stat (filename, &buf);
//打印出文件类型
print_file_mode (buf);
//打印储存权限
print_file_permissions (buf);
//打印数目
printf (" ");
print_file_nlink (buf);
//打印文件从属
printf (" ");
print_file_bt_user (buf);
printf (" ");
print_file_bt_grp (buf);
//打印文件大小
printf (" ");
print_file_size (buf);
//打印时间
printf(" ");
print_file_mtime (buf);
//打印文件名
printf (" ");
print_file_name((char *)filename);
printf ("\n");
}