| tty.c (9616) | tty.c (9617) |
|---|---|
| 1/*- 2 * Copyright (c) 1982, 1986, 1990, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. --- 22 unchanged lines hidden (view full) --- 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)tty.c 8.8 (Berkeley) 1/21/94 | 1/*- 2 * Copyright (c) 1982, 1986, 1990, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * (c) UNIX System Laboratories, Inc. 5 * All or some portions of this file are derived from material licensed 6 * to the University of California by American Telephone and Telegraph 7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 8 * the permission of UNIX System Laboratories, Inc. --- 22 unchanged lines hidden (view full) --- 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)tty.c 8.8 (Berkeley) 1/21/94 |
| 39 * $Id: tty.c,v 1.49 1995/07/21 13:56:29 bde Exp $ | 39 * $Id: tty.c,v 1.50 1995/07/21 14:15:09 bde Exp $ |
| 40 */ 41 42/*- 43 * TODO: 44 * o Fix races for sending the start char in ttyflush(). 45 * o Handle inter-byte timeout for "MIN > 0, TIME > 0" in ttyselect(). 46 * With luck, there will be MIN chars before select() returns(). 47 * o Handle CLOCAL consistently for ptys. Perhaps disallow setting it. --- 132 unchanged lines hidden (view full) --- 180#undef TB 181#undef VT 182 183/* Macros to clear/set/test flags. */ 184#define SET(t, f) (t) |= (f) 185#define CLR(t, f) (t) &= ~(f) 186#define ISSET(t, f) ((t) & (f)) 187 | 40 */ 41 42/*- 43 * TODO: 44 * o Fix races for sending the start char in ttyflush(). 45 * o Handle inter-byte timeout for "MIN > 0, TIME > 0" in ttyselect(). 46 * With luck, there will be MIN chars before select() returns(). 47 * o Handle CLOCAL consistently for ptys. Perhaps disallow setting it. --- 132 unchanged lines hidden (view full) --- 180#undef TB 181#undef VT 182 183/* Macros to clear/set/test flags. */ 184#define SET(t, f) (t) |= (f) 185#define CLR(t, f) (t) &= ~(f) 186#define ISSET(t, f) ((t) & (f)) 187 |
| 188#undef MAX_INPUT /* XXX wrong in <sys/syslimits.h> */ 189#define MAX_INPUT TTYHOG 190 |
|
| 188/* 189 * Initial open of tty, or (re)entry to standard tty line discipline. 190 */ 191int 192ttyopen(device, tp) 193 dev_t device; 194 register struct tty *tp; 195{ --- 107 unchanged lines hidden (view full) --- 303 c = cc[VINTR]; 304 else if (ISSET(iflag, PARMRK)) 305 goto parmrk; 306 } else if ((ISSET(err, TTY_PE) && ISSET(iflag, INPCK)) 307 || ISSET(err, TTY_FE)) { 308 if (ISSET(iflag, IGNPAR)) 309 return (0); 310 else if (ISSET(iflag, PARMRK)) { | 191/* 192 * Initial open of tty, or (re)entry to standard tty line discipline. 193 */ 194int 195ttyopen(device, tp) 196 dev_t device; 197 register struct tty *tp; 198{ --- 107 unchanged lines hidden (view full) --- 306 c = cc[VINTR]; 307 else if (ISSET(iflag, PARMRK)) 308 goto parmrk; 309 } else if ((ISSET(err, TTY_PE) && ISSET(iflag, INPCK)) 310 || ISSET(err, TTY_FE)) { 311 if (ISSET(iflag, IGNPAR)) 312 return (0); 313 else if (ISSET(iflag, PARMRK)) { |
| 311parmrk: (void)putc(0377 | TTY_QUOTE, &tp->t_rawq); | 314parmrk: 315 if (tp->t_rawq.c_cc + tp->t_canq.c_cc > 316 MAX_INPUT - 3) 317 goto input_overflow; 318 (void)putc(0377 | TTY_QUOTE, &tp->t_rawq); |
| 312 (void)putc(0 | TTY_QUOTE, &tp->t_rawq); 313 (void)putc(c | TTY_QUOTE, &tp->t_rawq); 314 goto endcase; 315 } else 316 c = 0; 317 } 318 } 319 /* --- 193 unchanged lines hidden (view full) --- 513 if (!ISSET(lflag, NOKERNINFO)) 514 ttyinfo(tp); 515 goto endcase; 516 } 517 } 518 /* 519 * Check for input buffer overflow 520 */ | 319 (void)putc(0 | TTY_QUOTE, &tp->t_rawq); 320 (void)putc(c | TTY_QUOTE, &tp->t_rawq); 321 goto endcase; 322 } else 323 c = 0; 324 } 325 } 326 /* --- 193 unchanged lines hidden (view full) --- 520 if (!ISSET(lflag, NOKERNINFO)) 521 ttyinfo(tp); 522 goto endcase; 523 } 524 } 525 /* 526 * Check for input buffer overflow 527 */ |
| 521 if (tp->t_rawq.c_cc + tp->t_canq.c_cc >= TTYHOG) { | 528 if (tp->t_rawq.c_cc + tp->t_canq.c_cc >= MAX_INPUT) { 529input_overflow: |
| 522 if (ISSET(iflag, IMAXBEL)) { 523 if (tp->t_outq.c_cc < tp->t_hiwat) 524 (void)ttyoutput(CTRL('g'), tp); 525 } 526 goto endcase; 527 } 528 529 if ( c == 0377 && ISSET(iflag, PARMRK) && !ISSET(iflag, ISTRIP) --- 1754 unchanged lines hidden --- | 530 if (ISSET(iflag, IMAXBEL)) { 531 if (tp->t_outq.c_cc < tp->t_hiwat) 532 (void)ttyoutput(CTRL('g'), tp); 533 } 534 goto endcase; 535 } 536 537 if ( c == 0377 && ISSET(iflag, PARMRK) && !ISSET(iflag, ISTRIP) --- 1754 unchanged lines hidden --- |