int add_exec(struct ex_list **ex_ptr, int do_pty, char *exec, struct in_addr addr, int port) { struct ex_list *tmp_ptr; /* First, check if the port is "bound" */ for (tmp_ptr = *ex_ptr; tmp_ptr; tmp_ptr = tmp_ptr->ex_next) { if (port == tmp_ptr->ex_fport && addr.s_addr == tmp_ptr->ex_addr.s_addr) return -1; } tmp_ptr = *ex_ptr; *ex_ptr = (struct ex_list *)malloc(sizeof(struct ex_list)); (*ex_ptr)->ex_fport = port; (*ex_ptr)->ex_addr = addr; (*ex_ptr)->ex_pty = do_pty; (*ex_ptr)->ex_exec = (do_pty == 3) ? exec : strdup(exec); (*ex_ptr)->ex_next = tmp_ptr; return 0; }