bool mofile_read_strings_array(util::buffer_reader& reader, uint32_t number_of_strings, uint32_t offset, boost::string_ref* result)
{
reader.seek(offset, std::ios::beg);
std::dynarray<uint32_t> strings_lengths(number_of_strings);
uint32_t first_offset = 0;
uint32_t last_offset = 0;
for (uint32_t i = 0; i < number_of_strings; i++)
{
uint32_t current_length = reader.read<uint32_t>();
uint32_t current_offset = reader.read<uint32_t>();
strings_lengths[i] = current_length;
if (i == 0)
{
first_offset = current_offset;
}
if (i == (number_of_strings - 1))
{
last_offset = current_offset;
}
}
uint32_t string_array_size = last_offset + strings_lengths.back() + 1 - first_offset;
if (string_array_size == 0)
{
return false;
}
reader.seek(first_offset, std::ios::beg);
boost::string_ref string_array(reader.reads_ptr(string_array_size), string_array_size);
boost::string_ref::iterator iter = string_array.begin();
for (uint32_t i = 0; i < number_of_strings; i++)
{
size_t len = strings_lengths[i] + 1;
result[i] = boost::string_ref(iter, len);
iter += len;
}
return true;
}
int main(void)
{
// Create Floppy element
floppy newfloppy;
floppy *myfloppy = &newfloppy;
unsigned short mounted = 0;
while(1)
{
char current_directory[150] = "/";
// Create a buffer and take input from the command line
char *buff = NULL;
buff = takeinfo("prompt: ");
// Create a String array and parse the buff into it
char **buff_parsed;
buff_parsed = string_array(buff);
int n_words = count_words(buff);
printf("n_words %i\n", n_words);//debug
// If an empty command line is entered
if(n_words < 1)
{
continue;
}
//-----------------------------------------------------------------------------------------
// Run the comands.
// Check to see if the comand is quit
if(!strcmp(buff_parsed[0], "quit"))
{
exit(1);
}
else if(!strcmp(buff_parsed[0], "help"))
{
help();
}
// Execute comands
else if(!strcmp(buff_parsed[0], "clear"))
{
if(fork() == 0)
{
char *args[2] = { "clear", NULL};
execv("/usr/bin/clear", args);
exit(1);
}
else
{
wait(NULL);
}
}
else if(!strcmp(buff_parsed[0], "fmount"))
{
char temp[strlen(buff_parsed[1]) + 2];
memcpy(temp,"./", 2);
memcpy(temp, buff_parsed[1], strlen(buff_parsed[1]));
if( access( buff_parsed[1], F_OK ) != -1 )
{
fprintf(stderr,"Floppy succesfully mounted\n");
mount(myfloppy, buff_parsed[1]);
mounted = 1;
}
else
{
//file doesn't exist
fprintf(stderr,"File/Floppy can't be found\n");
}
}
else if(!strcmp(buff_parsed[0], "fumount"))
{
if(mounted == 0)
printf("There's nothing to unmount\n");
else
{
mounted = 0;
myfloppy = NULL;
fprintf(stderr,"Unmount succesfull\n");
}
}
else if(!strcmp(buff_parsed[0], "traverse"))
{
if(n_words > 1)
{ // if the -l flag is used print with additional info
if(!strcmp(buff_parsed[1], "-l"))
{
traverse(myfloppy, 19, 1, current_directory);
}
else
fprintf(stderr, "flag doesn't exist");
}else
{
traverse(myfloppy, 19, 0, current_directory);
}
}
else if(!strcmp(buff_parsed[0], "structure"))
{
structure(myfloppy);
}
else if(!strcmp(buff_parsed[0], "showfat"))
{
showfat(myfloppy);
}
else
{
fprintf(stderr,"This command doesn't exist\n");
}
}
}
