shell_common.c

阿基米德操作系统的源代码

///////////////////////////////////////////////////////////////////////////////////
#include "general.h"
#include "s_isdirreg.h"
#include "the_syscalls.h"

#include "shell_head.h"
///////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////
void check_cmdline(void)
{
	int temp_index;

	for (temp_index = command_ret - 1; temp_index >= 0; temp_index--)
		if (command_buf[temp_index] == 0x20)
			command_buf[temp_index + 2] = 0;
		else
			command_buf[temp_index + 2] = command_buf[temp_index];
	command_buf[0] = command_buf[1] = command_buf[command_ret + 2] = 0;
	//////////////////////////////////
	for (temp_index = 0; temp_index <= command_ret + 2; temp_index++)
		command_buf0[temp_index] = command_buf[temp_index];
	while (temp_index < 256)
	{
		command_buf0[temp_index] = 0;
		temp_index++;
	}
	//////////////////////////////////
	command_index = 0;
	command_params= 0; 
	temp_index    = command_ret + 2;
	while (temp_index >= 0)
	{
		while ((temp_index >= 0) && (command_buf[temp_index] == 0))
			temp_index--;
		while ((temp_index >= 0) && command_buf[temp_index])
			temp_index--;
		if (temp_index >= 0)
		{
			command_buf[temp_index] = command_index;
			command_index           = temp_index;
			command_params++; 
		}
		temp_index--;
	}

	return;
}

///////////////////////////////////////////////////////////////////////////////////
void show_Dirs_Files(int cur_line)
{
	int j, temp_flag;
	unsigned long temp_size,temp_datetime;

	for (j = 0; j < NAME_LEN; j++)
		path0_buf[j + 6] = dir_buffer[cur_line * (NAME_LEN + 9) + j];
	
	if (shell_driver)
		temp_flag = S_ISDIR(dir_buffer[cur_line * (NAME_LEN + 9) + NAME_LEN]);
	else
		temp_flag = S_MSDOS_ISDIR(dir_buffer[cur_line * (NAME_LEN + 9) + NAME_LEN]);

	j = 0;
	while ((j < NAME_LEN) && path0_buf[j + 6])
		j++;
	while (j < NAME_LEN + 3)
	{
		path0_buf[j + 6] = 0x20;
		j++;
	}

	if (temp_flag)
	{
		show_string("<DIR>" ,path0_buf + NAME_LEN + 9);
		shell_nrDirs++;			
	}
	else
	{
		show_string("      ",path0_buf + NAME_LEN + 9);
		temp_datetime	=	*((unsigned long *)(dir_buffer + cur_line * (NAME_LEN + 9) + NAME_LEN + 1));
		temp_size		=   *((unsigned long *)(dir_buffer + cur_line * (NAME_LEN + 9) + NAME_LEN + 5));
		show_size_datetime(temp_size, temp_datetime, path0_buf + NAME_LEN + 15);
		shell_nrFiles++;
	}
	the_screen_call18(path0_buf);

	return;
}

///////////////////////////////////////////////////////////////////////////////////
void show_nrDirs_nrFiles(void)
{
	show_string(""				,path0_buf + 6);
	the_screen_call18(path0_buf);

	show_number(shell_nrDirs    ,path0_buf + 6);
	show_string(" Dir(s)"       ,path0_buf + 13);
	the_screen_call18(path0_buf);			
	show_number(shell_nrFiles   ,path0_buf + 6);
	show_string(" File(s)"		,path0_buf + 13);
	the_screen_call18(path0_buf);			

	show_string(""				,path0_buf + 6);
	the_screen_call18(path0_buf);

	return;
}

///////////////////////////////////////////////////////////////////////////////////
void show_size_datetime(unsigned long size, unsigned long datetime, unsigned char * buf)
{
	unsigned char * temp_pChar;
	unsigned long   temp_long;
	unsigned char   temp_char0,temp_char1;

	temp_pChar = buf;

	show_number(size,temp_pChar);

	temp_pChar = temp_pChar + 7;
	*temp_pChar++ = 0x20;
	*temp_pChar++ = 0x20;
	*temp_pChar++ = 0x20;

	////////////////////////////////////////
	temp_long	= (datetime >> 21) & 0x0f;
	temp_char0	= (temp_long / 10) + 0x30;
	temp_char1	= (temp_long % 10) + 0x30;
	
	*temp_pChar++ = temp_char0;
	*temp_pChar++ = temp_char1;
	*temp_pChar++ = '-';
	////////////////////////////////////////
	temp_long	= (datetime >> 16) & 0x1f;
	temp_char0	= (temp_long / 10) + 0x30;
	temp_char1	= (temp_long % 10) + 0x30;
	
	*temp_pChar++ = temp_char0;
	*temp_pChar++ = temp_char1;
	*temp_pChar++ = '-';
	////////////////////////////////////////
	temp_long	= (datetime >> 25) & 0x7f;
	temp_long	= (temp_long + 80) % 100;
	temp_char0	= (temp_long / 10) + 0x30;
	temp_char1	= (temp_long % 10) + 0x30;
	
	*temp_pChar++ = temp_char0;
	*temp_pChar++ = temp_char1;
	*temp_pChar++ = ' ';
	////////////////////////////////////////
	temp_long	= (datetime >> 11) & 0x1f;
	temp_char0	= (temp_long / 10) + 0x30;
	temp_char1	= (temp_long % 10) + 0x30;
	
	*temp_pChar++ = temp_char0;
	*temp_pChar++ = temp_char1;
	*temp_pChar++ = ':';
	////////////////////////////////////////
	temp_long	= (datetime >>  5) & 0x3f;
	temp_char0	= (temp_long / 10) + 0x30;
	temp_char1	= (temp_long % 10) + 0x30;
	
	*temp_pChar++ = temp_char0;
	*temp_pChar++ = temp_char1;
	*temp_pChar++ = 0;
	////////////////////////////////////////

	return;
}

///////////////////////////////////////////////////////////////////////////////////
void show_number(unsigned long number, unsigned char * buf)
{
	unsigned char * temp_pChar, * temp_pChar0;

	temp_pChar		= buf + 6;

	*temp_pChar--	= number % 10;
	number			= number / 10;
	*temp_pChar--	= number % 10;
	number			= number / 10;
	*temp_pChar--	= number % 10;
	number			= number / 10;
	*temp_pChar--	= number % 10;
	number			= number / 10;
	*temp_pChar--	= number % 10;
	number			= number / 10;
	*temp_pChar--	= number % 10;
	number			= number / 10;
	*temp_pChar--	= number % 10;
	number			= number / 10;
	
	temp_pChar		= buf;
	temp_pChar0		= buf + 5;
	while ((temp_pChar <= temp_pChar0) && (*temp_pChar == 0))
	{
		*temp_pChar = 0x20;
		temp_pChar++;
	}

	temp_pChar0++;
	while (temp_pChar <= temp_pChar0)
	{
		*temp_pChar = *temp_pChar + 0x30;
		temp_pChar++;
	}

	return;
}

///////////////////////////////////////////////////////////////////////////////////
void show_string(const char * str, unsigned char * buf)
{
	while (*str)
		*buf++ = *str++;
	*buf++ = 0;

	return;
}

///////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////