int cmd_quit(tok_t arg[]) {
printf("Bye\n");
free(s);
freeToks(PATH);
exit(0);
return 1;
}
int shell (int argc, char *argv[]) {
char *s=NULL; //= malloc(INPUT_STRING_SIZE+1); /* user input string */
tok_t *t; /* tokens parsed from input */
int lineNum = 0;
int fundex = -1;
pid_t pid = getpid(); /* get current processes PID */
pid_t ppid = getppid(); /* get parents PID */
pid_t cpid, tcpid, cpgid;
init_shell();
printf("%s running as PID %d under %d\n",argv[0],pid,ppid);
lineNum=0;
set_dir();
fprintf(stdout, "%d:%s $ ", lineNum,cdir);
while ((s = freadln(stdin))) {
t = getToks(s); /* break the line into tokens */
//printf("args s: %s\n",s);
fundex = lookup(t[0]); /* Is first token a shell literal */
if(fundex >= 0) cmd_table[fundex].fun(&t[1]);
else {
if(t[0]) {
terminal_cmd(t);
}
//fprintf(stdout, "This shell only supports built-ins. Replace this to run programs as commands.\n");
}
free(s);
freeToks(t);
fprintf(stdout, "%d:%s $ ", lineNum,cdir);
}
return 0;
}
int shell(int argc, char *argv[]) {
tok_t tok_special_indexes[MAXTOKS];
fprintf(stdout, "Welcome to Shelley v1.0\n...\n");
tok_t *t; /* tokens parsed from input */
int fundex = -1, tok_num = 0, bg = 0;
pid_t pid = getpid(), /* get current processes PID */
ppid = getppid(), /* get parents PID */
cpid, tcpid, cpgid;
init_shell();
PATH = getToks(getenv("PATH"), &tok_num, tok_special_indexes, &bg);
do {
t = getToks(s, &tok_num, tok_special_indexes, &bg); /* break the line into tokens */
if (t != NULL) {
fundex = lookup(t[0]); /* Is first token a shell literal */
if (fundex >= 0)
cmd_table[fundex].fun(&t[1]);
else {
create_process(t, tok_num, tok_special_indexes, bg);
freeToks(t);
}
}
prompter();
} while ((s = freadln(stdin)));
return cmd_table[lookup("quit")].fun(&t[1]);
}
