kolibrios/programs/system/shell/cmd/cmd_cp.c

int cmd_cp(char param[])
{

char* argv[100];
int argc;
char *filename_in = NULL;
char *filename_out = NULL;
char *buffer = NULL;

kol_struct70	k70_in;
kol_struct70	k70_out;

kol_struct_BDVK	bdvk;

unsigned long long filesize;
unsigned result, buf_size;

argc = parameters_prepare(param, argv);

if (argc != 2)
   {
      #if LANG_ENG
	printf("  cp <file_in> <file_out>\n\r");
      #elif LANG_RUS
	printf("  cp <<3C><><EFBFBD><EFBFBD>筨<EFBFBD>> <१<><E0A5A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>>\n\r");
      #endif

      parameters_free(argc, argv);

      return TRUE;
   }

filename_in  = (char*) malloc(FILENAME_MAX);
filename_out = (char*) malloc(FILENAME_MAX);

if (argv[0][0] != '/')
   {
   strcpy(filename_in, cur_dir);
   if (filename_in[strlen(filename_in)-1] != '/')
	strcat(filename_in, "/"); // add slash
   strcat(filename_in, argv[0]);
   }
   else
   {
   strcpy(filename_in, argv[0]);
   }

if (argv[1][0] != '/')
   {
   strcpy(filename_out, cur_dir);
   if (filename_out[strlen(filename_out)-1] != '/')
	strcat(filename_out, "/"); // add slash
   strcat(filename_out, argv[1]);
   }
   else
   {
   strcpy(filename_out, argv[1]);
   }
   
// add ability to use directory as destination
if ( dir_check(filename_out) )
	{
		char *fname = strrchr(filename_in, '/') + 1;  // always exist, as we add curdir
		if (filename_out[strlen(filename_out)-1] != '/')
			strcat(filename_out, "/"); // add slash
		strcat(filename_out, fname);
	}


k70_in.p00 = 5;
k70_in.p04 = 0LL;
k70_in.p12 = 0;
k70_in.p16 = (unsigned) &bdvk;
k70_in.p20 = 0;
k70_in.p21 = filename_in;

result = kol_file_70(&k70_in); // <20><><EFBFBD><EFBFBD>砥<EFBFBD> <20><><EFBFBD><EFBFBD>ଠ<EFBFBD><E0ACA0><EFBFBD> <20> 䠩<><E4A0A9>
if ( 0 != result )
	goto lbl_exit;

// count buffer size up to 1Mb, but no more than 1/2 of free memory
buf_size = 1 << 20; // 1Mb
while( ((buf_size >> 10) > kol_system_memfree()) && (buf_size > 4096) )
	buf_size /= 2;

filesize = bdvk.p32; // <20><><EFBFBD><EFBFBD>砥<EFBFBD> ࠧ<><E0A0A7><EFBFBD> 䠩<><E4A0A9>(<28><>࠭<EFBFBD>祭<EFBFBD><E7A5AD> - 4 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ⮫쪮 <20><><EFBFBD> FAT)
if (buf_size > filesize)
	buf_size = (unsigned)filesize;	// may be zero!
if (buf_size == 0) buf_size = 4096;	// ...

buffer = (char*) malloc(buf_size);
if (!buffer)
	{
		result = E_NOMEM;
		goto lbl_exit;
	}

k70_in.p00 = 0;
//k70_in.p08 = 0;
k70_in.p12 = buf_size;
k70_in.p16 = (unsigned) buffer;
k70_in.p20 = 0;
k70_in.p21 = filename_in;

k70_out.p00 = 2;
//k70_out.p08 = 0;
k70_out.p12 = buf_size;
k70_out.p16 = (unsigned) buffer;
k70_out.p20 = 0;
k70_out.p21 = filename_out;

unsigned long long offset = 0;
do {
    k70_in.p04 = offset;
    if (offset + buf_size > filesize)  // last chunk
		{
		k70_in.p12 = k70_out.p12 = (unsigned)(filesize - offset); // filesize % buf_size;
		}
    
    result = kol_file_70(&k70_in); // <20>⥭<EFBFBD><E2A5AD>
    if (result != 0)
		goto lbl_exit;

    k70_out.p04 = offset;
    result = kol_file_70(&k70_out); // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    if (result != 0)
		goto lbl_exit;

    if (k70_out.p00 == 2)
       k70_out.p00 = 3; // <20><><EFBFBD>塞 <20>㭪<EFBFBD><E3ADAA><EFBFBD> <20> ᮧ<><E1AEA7><EFBFBD><EFBFBD><EFBFBD> (2) <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (3)
	offset += buf_size;
} while (offset < filesize);

lbl_exit:

parameters_free(argc, argv);
free(filename_in);
free(filename_out);
free(buffer);

return (result == 0);
}