#include <stdio.h>
#include <string.h>
#include <time.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "dirent.h"

#ifndef MAX_PATH
#define MAX_PATH 1023
#endif

void processDir_0( char *directoryName, int indent );

void print_file_info( char *fullName, char *name, struct stat *buf, int indent )
{
    int isDir = 0;
    char *timeRepresentation;
    int i;

    for( i = 0; i < indent; i++ )
        printf( "   " );

    printf( "%d\t", buf->st_size );

    if( ( buf->st_mode & S_IFMT ) == S_IFDIR )
        isDir = 1;

    if( isDir )
        printf( " (DIR)" );
    else
        printf( "      " );

    timeRepresentation = ctime( &buf->st_mtime );
    timeRepresentation[ 24 ] = '\0';

    printf( " %s", timeRepresentation  );
    printf( " %s", name );

    printf( "\n" );

    if( isDir )
    {
        if( strcmp( name, "." ) == 0 || strcmp( name, ".." ) == 0 )
            return;

        processDir_0( fullName, indent + 1 );
    }
}

void processDir_0( char *directoryName, int indent )
{
    DIR *dp;
    struct stat buf;
    struct dirent *slot;
    char fullName[ MAX_PATH ];

    dp = opendir( directoryName );
    if( dp == NULL )
    {
        fprintf( stderr, "Error opening directory\n" );
        return;
    }

    for( slot = readdir( dp ); slot != NULL; slot = readdir( dp ) )
    {
        sprintf( fullName, "%s/%s", directoryName, slot->d_name );

        if( stat( fullName, &buf ) == -1 )
        {
            fprintf( stderr, "Error statting file!\n" );
            continue;
        }
        else
            print_file_info( fullName, slot->d_name, &buf, indent );
    }

    closedir( dp );
}

void processDir( char *directoryName )
{
    processDir_0( directoryName, 0 );
}

int main( int argc, char * argv [ ] )
{
    int i;

    if( argc == 1 )
        processDir( "." );
    else
    {
        for( i = 1; i < argc; i++ )
            processDir( argv[ i ] );
    }

    return 0;
}