int main(){
// called at the start of shell, manages all other shell commands
printf("\nWelcome to GoodShell!\nTotally not a ripoff of Bash.\n\n");
chdir(home() );
char input[MAX_INPUT];
char **cmds, **cmd_p, **args;
while(1){
// new line with path for new command
print_prompt();
// gets the command line argument
read_line(input);
// seperates commands
cmds = separate_cmds(input);
if (cmds){
for (cmd_p = cmds; *cmd_p; cmd_p++){
args = separate_args(*cmd_p);
if (args){
exec_cmd(args, cmds);
free_strlist(args);
}
}
free_strlist(cmds);
}
}
return EXIT_FAILURE;
}
/**
* Returns de command code and the arguments 1 and 2 initialized if needed
*/
int parse_cmd(char* msg, char** arg1, char** arg2) {
int i = 0;
int msg_length;
int cmd_length;
int arg1_length = 0;
int arg2_length = 0;
del_spaces(msg);
if(*msg != '/') { //Si no empieza con una barra es que estan chateando (no es comando)
return CMD_CHAT;
}
while(msg[i] != ' ' && msg[i] != '\0')
i++;
msg_length = strlen(msg);
msg[msg_length - 1] = '\0'; //saco el \n que viene al final porque sino jode.
separate_args(msg);
cmd_length = strlen(msg);
if (msg_length - cmd_length - 1 > 0) { //Si queda algo despues del comando
arg1_length = strlen(msg + cmd_length + 1);
*arg1 = malloc(sizeof(char) * arg1_length);
strcpy(*arg1, msg + cmd_length + 1);
if (msg_length - cmd_length - arg1_length - 2 > 0) { //Si hay un 2do arg
//printf("Inicio arg2: %c\n", *(msg + cmd_length + arg1_length + 2));
arg2_length = strlen(msg + cmd_length + arg1_length + 2);
*arg2 = malloc(sizeof(char) * arg2_length);
strcpy(*arg2, msg + cmd_length + arg1_length + 2);
//printf("Arg 2: %s\n", *arg2);
}
}
//printf("MSG_LEN: %d\nCMD LEN: %d\nARG1 LEN: %d\nARG2 LEN: %d\n", msg_length, cmd_length, arg1_length, arg2_length);
if (cmd_length + arg1_length + arg2_length + 2 < msg_length - 1) {
fprintf(stderr, "Demasiados argumentos\n");
return CMD_ERROR;
}
for (int j = 0; j < cmds_amount; j++)
if (strcmp(all_cmds[j], msg+1) == 0){
msg_length = msg_length - cmd_length - 1;
switch (j) {
case 0: //login username password
if (arg2_length == 0) {
fprintf(stderr, FAILED_LOGIN_MSG);
j = cmds_amount;
break;
}
return CMD_LOGIN;
case 1: //register username password
if (arg2_length == 0) {
fprintf(stderr, FAILED_REGISTER_MSG);
j = cmds_amount;
break;
}
return CMD_REGISTER;
case 2: //logout
if (arg1_length != 0) {
fprintf(stderr, FAILED_LOGOUT_MSG);
j = cmds_amount;
break;
}
return CMD_LOGOUT;
case 3: //change_password new_pass
if (arg1_length == 0 || arg2_length != 0) {
fprintf(stderr, FAILED_CHANGE_PASSWORD_MSG);
j = cmds_amount;
break;
}
return CMD_CH_PW;
case 4: //change_privileges username new_priv
if (arg2_length == 0) {
fprintf(stderr, FAILED_CHANGE_PRIVILEGES_MSG);
j = cmds_amount;
break;
}
return CMD_CH_PRIVS;
case 5: //change_color color
if (arg1_length == 0 || arg2_length != 0) {
fprintf(stderr, FAILED_CHANGE_COLOR_MSG);
j = cmds_amount;
break;
}
return CMD_CH_COLOR;
case 6: //delete username
if (arg1_length == 0) {
fprintf(stderr, FAILED_DELETE_MSG);
j = cmds_amount;
break;
}
return CMD_DELETE_USER;
case 7: //kick username reason
if (arg2_length == 0) {
fprintf(stderr, FAILED_KICK_MSG);
j = cmds_amount;
break;
}
return CMD_KICK;
case 8: //ban username reason
if (arg2_length == 0) {
fprintf(stderr, FAILED_BAN_MSG);
j = cmds_amount;
break;
}
return CMD_BAN;
case 9: //get_online_users
if (arg1_length != 0) {
fprintf(stderr, FAILED_GET_ONLINE_USERS);
j = cmds_amount;
break;
}
return CMD_GET_ONLINE_USERS;
case 10: //help
if (arg1_length != 0) {
fprintf(stderr, FAILED_GET_ONLINE_USERS);
j = cmds_amount;
break;
}
return CMD_HELP;
}
}
return CMD_ERROR;
}