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program.c
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program.c
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#include "program.h"
//char USER_INPUT_RAW[USER_INPUT_BUFFER_LENGTH*5];
char* USER_INPUT[5];
//char* USER_INPUT_0[USER_INPUT_BUFFER_LENGTH];
//char* USER_INPUT_1[USER_INPUT_BUFFER_LENGTH];
//char* USER_INPUT_2[USER_INPUT_BUFFER_LENGTH];
//char* USER_INPUT_3[USER_INPUT_BUFFER_LENGTH];
void RunProgram(void)
{
int running = 1;
//USER_INPUT[0] = USER_INPUT_0;
//USER_INPUT[1] = USER_INPUT_1;
//USER_INPUT[2] = USER_INPUT_2;
//USER_INPUT[3] = USER_INPUT_3;
//USER_INPUT[4] = NULL;
while (running)
{
PrintPrompt();
GetUserInput();
if (strcmp(USER_INPUT[0], "exit") == 0)
{
running = 0;
}
else if (strcmp(USER_INPUT[0], "ls") == 0)
{
if (strcmp(USER_INPUT[1], ". . . . .") == 0)
{
//printf("Requires an argument for path name\n");
list(GetCurrentDirectoryClusterNum());
}
else
{
ls(USER_INPUT[1]);
}
}
else if (strcmp(USER_INPUT[0], "cd") == 0)
{
if (strcmp(USER_INPUT[1], ". . . . .") == 0)
{
printf("Requires an argument for path name\n");
}
else if (strcmp(USER_INPUT[1], ".") == 0)
{
// do nothing
}
else
{
//char parsed_dir[USER_INPUT_BUFFER_LENGTH];
//strcpy(parsed_dir, USER_INPUT[1]);
//ToFAT32(parsed_dir);
//printf("!%s!\n", parsed_dir);
cd(USER_INPUT[1]);
}
}
else if (strcmp(USER_INPUT[0], "size") == 0)
{
if (strcmp(USER_INPUT[1], ". . . . .") == 0)
{
printf("Requires a file name argument\n");
}
else
{
size(USER_INPUT[1]);
}
}
else if (strcmp(USER_INPUT[0], "open") == 0)
{
if (strcmp(USER_INPUT[1], ". . . . .") == 0 ||
strcmp(USER_INPUT[2], ". . . . .") == 0)
{
printf("Requires a file name argument followed by a mode argument\n");
}
else
{
char parsed_dir[USER_INPUT_BUFFER_LENGTH];
strcpy(parsed_dir, USER_INPUT[1]);
ToFAT32(parsed_dir);
open(parsed_dir, USER_INPUT[2]);
}
}
else if (strcmp(USER_INPUT[0], "close") == 0)
{
if (strcmp(USER_INPUT[1], ". . . . .") == 0)
{
printf("Requires a file name argument\n");
}
else
{
char parsed_dir[USER_INPUT_BUFFER_LENGTH];
strcpy(parsed_dir, USER_INPUT[1]);
ToFAT32(parsed_dir);
close(parsed_dir);
}
}
else if (strcmp(USER_INPUT[0], "read") == 0)
{
if (strcmp(USER_INPUT[1],". . . . .") == 0 ||
strcmp(USER_INPUT[2],". . . . .") == 0 ||
strcmp(USER_INPUT[3],". . . . .") == 0)
{
printf("Requires arguments for filename, position, and size\n");
}
else
{
char parsed_dir[USER_INPUT_BUFFER_LENGTH];
strcpy(parsed_dir, USER_INPUT[1]);
ToFAT32(parsed_dir);
read(parsed_dir, atoi(USER_INPUT[2]), atoi(USER_INPUT[3]));
}
}
else if (strcmp(USER_INPUT[0], "create") == 0)
{
if (strcmp(USER_INPUT[1],". . . . .") == 0)
{
printf("Requires an argument for the file name\n");
}
else if (strcmp(USER_INPUT[1],".") == 0)
{
printf("Invalid file name\n");
}
else if (strcmp(USER_INPUT[1],"..") == 0)
{
printf("Invalid file name\n");
}
else
{
char parsed_dir[USER_INPUT_BUFFER_LENGTH];
strcpy(parsed_dir, USER_INPUT[1]);
ToFAT32(parsed_dir);
create(parsed_dir);
}
}
else if (strcmp(USER_INPUT[0], "mkdir") == 0)
{
if (strcmp(USER_INPUT[1],". . . . .") == 0)
{
printf("Requires an argument for the directory name\n");
}
else if (strcmp(USER_INPUT[1],".") == 0)
{
printf("Invalid directory name\n");
}
else if (strcmp(USER_INPUT[1],"..") == 0)
{
printf("Invalid directory name\n");
}
else
{
char parsed_dir[USER_INPUT_BUFFER_LENGTH];
strcpy(parsed_dir, USER_INPUT[1]);
ToFAT32(parsed_dir);
mkdir(parsed_dir);
}
}
else if (strcmp(USER_INPUT[0], "rm") == 0)
{
if (strcmp(USER_INPUT[1],". . . . .") == 0)
{
printf("Requires an argument for the file name\n");
}
else if (strcmp(USER_INPUT[1],".") == 0)
{
printf("Invalid file name\n");
}
else if (strcmp(USER_INPUT[1],"..") == 0)
{
printf("Invalid file name\n");
}
else
{
char parsed_dir[USER_INPUT_BUFFER_LENGTH];
strcpy(parsed_dir, USER_INPUT[1]);
ToFAT32(parsed_dir);
rm(parsed_dir);
}
}
else if (strcmp(USER_INPUT[0], "rmdir") == 0)
{
if (strcmp(USER_INPUT[1],". . . . .") == 0)
{
printf("Requires an argument for the directory name\n");
}
else if (strcmp(USER_INPUT[1],".") == 0)
{
printf("Invalid directory name\n");
}
else if (strcmp(USER_INPUT[1],"..") == 0)
{
printf("Invalid directory name\n");
}
else
{
char parsed_dir[USER_INPUT_BUFFER_LENGTH];
strcpy(parsed_dir, USER_INPUT[1]);
ToFAT32(parsed_dir);
rmdir(parsed_dir);
}
}
else if (strcmp(USER_INPUT[0], "write") == 0)
{
if (strcmp(USER_INPUT[1],". . . . .") == 0 ||
strcmp(USER_INPUT[2],". . . . .") == 0 ||
strcmp(USER_INPUT[3],". . . . .") == 0 ||
strcmp(USER_INPUT[4],". . . . .") == 0)
{
printf("Requires arguments for file name, position, number of bytes, and string to write\n");
}
else
{
char parsed_dir[USER_INPUT_BUFFER_LENGTH];
strcpy(parsed_dir, USER_INPUT[1]);
ToFAT32(parsed_dir);
write(parsed_dir, atoi(USER_INPUT[2]), atoi(USER_INPUT[3]), USER_INPUT[4]);
}
}
else if (strcmp(USER_INPUT[0], "debug") == 0)
{
printf("CURRENT_CLUSTER: %d\n", GetCurrentDirectoryClusterNum());
printf("CURRENT_CLUSTER BYTE_ADDRESS: 0x%x\n", FindFirstSectorOfCluster(GetCurrentDirectoryClusterNum()));
FTPrint();
PrintDirectoryVector(GetDirectoryContents(GetCurrentDirectoryClusterNum()));
}
}
int k;
for (k = 0; k < 5; k++)
{
free(USER_INPUT[k]);
}
}
void PrintPrompt(void)
{
printf("=> ");
}
void GetUserInput(void)
{
char tmp;
int j;
for (j = 0; j < 5; j++)
{
if (USER_INPUT[j] != NULL)
free(USER_INPUT[j]);
USER_INPUT[j] = (char*)calloc(1, sizeof(char));
USER_INPUT[j][0] = '\0';
}
unsigned int user_vector_index = 0;
do
{
tmp = fgetc(stdin);
if (user_vector_index == 4)
{
if (tmp != '\"')
printf("Expected quotes around final argument");
tmp = fgetc(stdin);
while (tmp != '\"')
{
USER_INPUT[user_vector_index] = DynStrPushBack(USER_INPUT[user_vector_index], tmp);
tmp = fgetc(stdin);
}
// get the rest of the stream
while (tmp != '\n' && tmp != '\0')
{
tmp = fgetc(stdin);
}
}
else
{
while(tmp != ' ' && tmp != '\n' && tmp != '\0')
{
USER_INPUT[user_vector_index] = DynStrPushBack(USER_INPUT[user_vector_index], tmp);
tmp = fgetc(stdin);
}
}
//printf("%s\n", USER_INPUT[user_vector_index]);
user_vector_index++;
}while (tmp != '\n' && tmp != '\0' && user_vector_index < 5);
int i;
for (i = user_vector_index; i < 5; i++)
{
free(USER_INPUT[i]);
USER_INPUT[i] = calloc(10, sizeof(char));
strcpy(USER_INPUT[i], ". . . . .");
//memset(USER_INPUT[i], " ", USER_INPUT_BUFFER_LENGTH);
}
}
/*
void GetUserInput(void)
{
char* tmp_buff;
gets(USER_INPUT_RAW);
tmp_buff = strtok(USER_INPUT_RAW, " \t\n\0");
unsigned int index = 0;
while (tmp_buff != NULL)
{
strncpy(USER_INPUT[index], tmp_buff, USER_INPUT_BUFFER_LENGTH);
printf("%s\n", USER_INPUT[index]);
tmp_buff = strtok(NULL, " \t\n\0");
++index;
}
int i;
for (i = index; i < 5; i++)
{
strcpy(USER_INPUT[i], ". . . . .");
//memset(USER_INPUT[i], " ", USER_INPUT_BUFFER_LENGTH);
}
}*/