/**
* Runs the lash program. The given parameters allow the user to specify the
* limits the program should operate within.
*
* @param command The maximum amount of commands to allow
* @param args The maximum number of arguments within each command
* @param arglength The maximum length of each argument
* @param promptlength The maximum length of the prompt on the command line
*/
void runLash(int command, int args, int arglength, int promptlength){
maxcommands = command;
maxargs = args;
maxarglength = arglength;
maxpromptlength = promptlength;
sprintf(prompt, "%s LaSH %% ", getenv("USER"));
// ignore all signals that should be passed to jobs
signal (SIGINT, sighandler);
signal (SIGQUIT, SIG_IGN);
signal (SIGTSTP, SIG_IGN);
signal (SIGTTIN, SIG_IGN);
signal (SIGTTOU, SIG_IGN);
// signal (SIGCHLD, sighandler);
stifle_history(100);
struct LashParser *lash = newLashParser(maxcommands, maxargs, maxarglength);
// Loop forever. This will be broken if exit is run
int cont = 1;
int status;
while(cont){
acceptInterrupt = 0;
char *input = readline(prompt);
if(strcmp(input, "") != 0){
add_history(input);
}
status = buildCommand(lash, input);
if(status == VALID)
cont = executeCommand(lash);
else if(status == QUOTE_MISMATCH)
printf("Error: Quote Mismatch\n");
free(input);
clearParser(lash);
}
free(lash->commands);
free(lash);
exit(0);
}
/* returns
* 0 if not enough commands remain or
* 1 if commands remain in buffer */
int checkClientBufOnCommand()
{
int len = (cli.cbuf)->count;
char * buf = flushBuffer(cli.cbuf);
char * c;
Task * t;
int stParse;
if (len == 0)
{
debugl(9, "checkClientBufOnCommand: No string to analyze\n");
free(buf);
return 0;
}
debugl(6, "checkClientBufOnCommand: Analyzing string with len=%d: ", len);
for (c = buf; (c - buf) < len; c++)
debugl(6, "%hhu ", *c);
debugl(6, "\n");
debugl(9, "checkClientBufOnCommand: Attempting to get string: ");
c = buf;
while (*c != '\012' && (c - buf) < len)
{
debugl(9, "%c(%hhu) ", *c, *c);
c++;
}
debugl(9, "end:%c(%hhu) ss=%d\n", *c, *c, c - buf);
if (*c != '\012' || (c - buf) == len)
{
addnStr(cli.cbuf, buf, len);
free(buf);
return 0;
}
else if ((c - buf + 1) < len)
{
addnStr(cli.cbuf, c + 1, len - (c - buf + 1));
}
debugl(9, "checkClientBufOnCommand: String got successfully!\n");
delTask(&t);
initParserByString(buf);
stParse = parse(&t);
clearParser();
if (stParse == PS_OK)
{
defineTaskType(t);
if (t->type != TASK_UNKNOWN)
{
if (t->type & TASKT_SERVER)
{
t->type &= ~TASKT_SERVER;
sendCommand(t);
}
else if (t->type &TASKT_CLIENT)
{
t->type &= ~TASKT_CLIENT;
execCommand(t);
}
}
else
error("Unknown command!\n");
}
else if (stParse == PS_ERROR)
echoParserError();
if ((c - buf + 1) == len)
return 0;
else
return 1;
}
