// Common function to call all command handlers
void builtInCmdExecutor(Cmd c)
{
if(!strcmp(c->args[0],"cd"))
{
executeCD(c);
}
else if(!strcmp(c->args[0],"echo"))
{
executeEcho(c);
}
else if(!strcmp(c->args[0],"logout"))
{
executeLogout(c);
}
else if(!strcmp(c->args[0],"nice"))
{
executeNice(c);
}
else if(!strcmp(c->args[0],"pwd"))
{
executePwd(c);
}
else if(!strcmp(c->args[0],"setenv"))
{
executeSetenv(c);
}
else if(!strcmp(c->args[0],"unsetenv"))
{
executeUnsetenv(c);
}
else if(!strcmp(c->args[0],"where"))
{
executeWhere(c);
}
}
void commandDecider (CMD_t *inputCommand)
{
char *commandName = inputCommand -> argv[0];
if (ifRedirection (inputCommand))
{
// Send to Redirection
executeRedirection (inputCommand);
return;
}
if (ifPiping (inputCommand))
{
// Send to Piping
executePiping (inputCommand);
return;
}
if (ifReturn (inputCommand))
{
// Don't do anything
return;
}
if (!strcmp (commandName, "help"))
{
// Send to help
executeHelp (inputCommand);
return;
}
if (!strcmp (commandName, "clear"))
{
// Send to clear
executeClear (inputCommand);
return;
}
if (!strcmp (commandName, "pwd"))
{
// Send to pwd
showPWD ();
return;
}
if (!strcmp (commandName, "ls"))
{
// Send to ls
executeLS (inputCommand);
return;
}
if (!strcmp (commandName, "whoami"))
{
// Send to whoami
showWhoami ();
return;
}
if (!strcmp (commandName, "cd"))
{
// Send to cd
executeCD (inputCommand);
return;
}
if (!strcmp (commandName, "pid"))
{
// Send to pid
executePID (inputCommand);
return;
}
if (!strcmp (commandName, "history"))
{
// Send to history
executeHistory (inputCommand);
return;
}
if (!strcmp (commandName, "kill"))
{
// Send to kill
executeKill (inputCommand);
return;
}
if (!strcmp (commandName, "exit"))
{
clearHistory ();
exit (0);
}
printf ("ERROR: INVALID_COMMAND :: \"%s\" is not a recognised command.. Type \"help\" for more information\n", commandName);
return;
}
