void reattach_tty(char *tty, char *password) { int s = -1; char *name; struct sockaddr_in addr; struct hostent *hp; int len = 0; fd_set rd_fd; struct timeval tm = {0}; char chr_c[] = "\003"; /* * this buffer has to be big enough to handle a full screen of * information from the detached process. */ unsigned char buffer[6 * BIG_BUFFER_SIZE + 1]; char *p; int port = 0; #if defined (TIOCGWINSZ) struct winsize window; #endif memset(&parm, 0, sizeof(struct param)); if (!(name = find_detach_socket(socket_path, tty))) { fprintf(stderr, "No detached process to attach to.\r\n"); _exit(1); } strcpy(parm.cookie, get_cookie(name)); if (!*parm.cookie) _exit(1); if ((p = strrchr(name, '/'))) p++; sscanf(p, "%d.%*s.%*s", &port); displays = 1; if ((s = socket(AF_INET, SOCK_STREAM, 0)) < 0) { displays = 0; _exit(1); } chmod(name, SOCKMODE); set_socket_options(s); memset(&addr, 0, sizeof(struct sockaddr_in)); addr.sin_port = htons(port); addr.sin_family = AF_INET; if ((hp = gethostbyname("localhost"))) memcpy(&addr.sin_addr, hp->h_addr, hp->h_length); else inet_aton("127.0.0.1", (struct in_addr *)&addr.sin_addr); if (connect(s, (struct sockaddr *)&addr, sizeof(addr)) < 0) { fprintf(stderr, "connection refused for %s\r\n", name); _exit(1); } parm.pid = getpid(); parm.pgrp = getpgrp(); parm.uid = getuid(); strcpy(parm.tty, ttyname(0)); strncpy(parm.termid, getenv("TERM"), 80); if (password) strncpy(parm.password, password, 60); fprintf(stderr, "attempting to wakeup %s\r\n", find_tty_name(name)); #if defined (TIOCGWINSZ) if (ioctl(0, TIOCGWINSZ, &window) > -1) { parm.cols = window.ws_col; parm.rows = window.ws_row; } else #endif { parm.cols = 79; parm.rows = 25; } write(s, &parm, sizeof(struct param)); sleep(2); alarm(15); len = read(s, &parm, sizeof(struct param)); alarm(0); if (len <= 0) { fprintf(stderr, "[1;37merror[0;37m reconnecting to %s\r\n", find_tty_name(name)); displays = 0; chmod(name, SOCKMODE); exit(1); } unlink(name); term_init(parm.termid); set_term_eight_bit(1); charset_ibmpc(); term_clear_screen(); term_resize(); term_move_cursor(0, 0); my_signal(SIGPIPE, handle_pipe, 0); my_signal(SIGINT, handle_ctrlc, 0); my_signal(SIGHUP, handle_hup, 0); /* * according to MHacker we need to set errno to 0 under BSD. * for some reason we get a address in use from a socket * */ errno = 0; while (1) { FD_ZERO(&rd_fd); FD_SET(0, &rd_fd); FD_SET(s, &rd_fd); tm.tv_sec = 2; switch (select(s + 1, &rd_fd, NULL, NULL, &tm)) { case -1: if (ctrl_c) { write(s, chr_c, 1); ctrl_c = 0; } else if (errno != EINTR) { close(s); _exit(1); } break; case 0: break; default: { if (FD_ISSET(0, &rd_fd)) { len = read(0, buffer, sizeof(buffer) - 1); write(s, buffer, len); } if (FD_ISSET(s, &rd_fd)) { len = read(s, buffer, sizeof(buffer) - 1); write(1, buffer, len); } } } } close(s); fprintf(stderr, "Never should have got here"); _exit(1); return; /* error return */ }
static void eight_bit_characters(Window *win, char *unused, int value) { if (value == ON && !term_eight_bit()) say("Warning! Your terminal says it does not support eight bit characters"); set_term_eight_bit(value); }