void processline (char *line)
{
pid_t cpid;
int status,
n_args;
char **argv; // Contains the line data
char newline [LINELEN];
memset(newline, 0, LINELEN);
if (expand (line, newline, LINELEN) == -1) {
return;
}
n_args = arg_parse(newline, &argv);
if (n_args == 0)
return;
if (try_builtin(n_args, argv)) {
free(argv);
last_exit = 0;
return;
}
/* Start a new process to do the job. */
cpid = fork();
if (cpid < 0) {
perror ("fork");
return;
}
/* Check for who we are! */
if (cpid == 0) {
/* We are the child! */
execvp(argv[0], argv);
perror("exec");
exit (127);
}
free(argv); // Parent frees the malloc
/* Have the parent wait for child to complete */
if (wait (&status) < 0)
perror ("wait");
}
void processline (char *line)
{
pid_t cpid;
int status,
argc;
char **argv;
argc = arg_parse(line, &argv);
/* when no arguments, do nothing */
if (argc == 0)
return;
/* try calling a builtin, return if successful */
if (try_builtin(argc, argv))
return;
/* Start a new process to do the job. */
cpid = fork();
if (cpid < 0) {
perror ("fork");
return;
}
/* Check for who we are! */
if (cpid == 0) {
/* We are the child! */
execvp(argv[0], argv);
perror ("exec");
exit (127);
}
/* free argv when parent */
free(argv);
/* Have the parent wait for child to complete */
if (wait (&status) < 0)
perror ("wait");
}
