TODO: still not 100% compatible
make it more equal with the original SYSIII Source without changing the resulting object
This commit is contained in:
Oliver Lehmann
parent
53c4caf537
commit
c66286adb4
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@ -11,6 +11,10 @@
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***************************************************************************
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**************************************************************************/
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/*
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* general TTY subroutines
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*/
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#include <sys/param.h>
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#include <sys/state.h>
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#include <sys/conf.h>
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@ -21,169 +25,194 @@
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#include <sys/ttold.h>
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#include <sys/sysinfo.h>
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#include <sys/systm.h>
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#include <sys/sysparm.h>
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#include <sys/proc.h>
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#include <sys/inode.h>
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#include <sys/mmu.h>
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#include <sys/s.out.h>
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#include <sys/user.h>
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#define CDEF (CLOCAL | PARODD | PARENB | CREAD | CSTOPB)
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#define CDEF1 (CLOCAL | PARENB | CREAD | CSTOPB)
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char ttywstr[] = "@[$]tty.c Rev : 4.2+ 02/07/84 13:50:59";
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extern int Canbsiz;
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char canonb[256];
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extern int numterm;
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int tthiwat[] = {
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0,
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60, 60, 60, 60, 60, 60,
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120, 120, 180, 180, 240, 240,
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240, 100, 100
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/*
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* tty low and high water marks
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* high < TTYHOG
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*/
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int tthiwat[16] = {
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0, 60, 60, 60,
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60, 60, 60, 120,
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120, 180, 180, 240,
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240, 240, 100, 100,
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};
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int ttlowat[] = {
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0,
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20, 20, 20, 20, 20, 20,
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40, 40, 60, 60, 80, 80,
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80, 50, 50
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int ttlowat[16] = {
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0, 20, 20, 20,
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20, 20, 20, 40,
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40, 60, 60, 80,
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80, 80, 50, 50,
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};
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char ttcchar[NCC] = {
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CINTR, CQUIT, CERASE, CKILL, CEOF };
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CINTR,
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CQUIT,
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CERASE,
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CKILL,
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CEOF,
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0,
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0,
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0
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};
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static int noterm;
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/* canon buffer */
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char canonb[256];
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/*
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* Input mapping table-- if an entry is non-zero, when the
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* corresponding character is typed preceded by "\" the escape
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* sequence is replaced by the table value. Mostly used for
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* upper-case only terminals.
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*/
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char maptab[] ={
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, '|', 0, 0, 0, 0, 0, '`',
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'{', '}', 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, '~', 0,
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0, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
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'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
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'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
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'X', 'Y', 'Z', 0, 0, 0, 0, 0,
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000,000,000,000,000,000,000,000,
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000,000,000,000,000,000,000,000,
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000,000,000,000,000,000,000,000,
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000,000,000,000,000,000,000,000,
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000,'|',000,000,000,000,000,'`',
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'{','}',000,000,000,000,000,000,
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000,000,000,000,000,000,000,000,
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000,000,000,000,000,000,000,000,
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000,000,000,000,000,000,000,000,
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000,000,000,000,000,000,000,000,
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000,000,000,000,000,000,000,000,
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000,000,000,000,000,000,'~',000,
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000,'A','B','C','D','E','F','G',
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'H','I','J','K','L','M','N','O',
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'P','Q','R','S','T','U','V','W',
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'X','Y','Z',000,000,000,000,000,
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};
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/*
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* routine called on first teletype open.
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* establishes a process group for distribution
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* of quits and interrupts from the tty.
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*/
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ttopen(tp)
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register struct tty *tp;
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{
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register struct proc *pp;
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pp = u.u_procp;
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if (tp->t_state & XCLUSE) {
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if (tp->t_state&XCLUSE) {
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u.u_error = EACCES;
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return;
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}
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if ((pp->p_pid == pp->p_pgrp) && !(u.u_ttyp) && !(tp->t_pgrp)){
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if ((pp->p_pid == pp->p_pgrp)
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&&(u.u_ttyp == NULL)
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&&(tp->t_pgrp == 0)) {
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u.u_ttyp = tp;
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tp->t_pgrp = pp->p_pgrp;
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}
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tp->t_state &=~WOPEN;
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tp->t_state &= ~WOPEN;
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tp->t_state |= ISOPEN;
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}
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ttclose(tp)
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register struct tty *tp;
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{
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dvi();
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(*tp->t_proc)(tp, T_RESUME);
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evi();
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ttyflush(tp, T_TIME);
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ttyflush(tp, FREAD);
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ttywait(tp);
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tp->t_state & = ~(WOPEN | ISOPEN);
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tp->t_state &= ~(ISOPEN|WOPEN);
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}
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#define CDEF (CLOCAL | PARODD | PARENB | CREAD | CSTOPB)
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#define CDEF1 (CLOCAL | PARENB | CREAD | CSTOPB)
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ttiocom(tp, com, addr, flag)
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/*
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* common ioctl tty code
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*/
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ttiocmd(tp, cmd, arg, mode)
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register struct tty *tp;
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caddr_t addr;
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int com;
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caddr_t arg;
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int cmd;
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{
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register ushort cflg;
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register int tmod;
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register int ldmode;
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register flag;
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ushort iflg;
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struct termio t;
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struct sgttyb told;
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struct termio cb;
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struct sgttyb tb;
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struct tchars toc;
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switch (com){
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switch(cmd) {
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case IOCTYPE:
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u.u_r.r_val1 = TIOC;
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break;
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case TCSETAW:
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case TCSETAF:
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ttywait(tp);
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if (com == TCSETAF)
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ttyflush(tp, T_RESUME);
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if (cmd == TCSETAF)
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ttyflush(tp, (FREAD|FWRITE));
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case TCSETA:
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if (copyin( addr, (caddr_t)&t, sizeof(t))==0){
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if (tp->t_line != t.c_line){
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if ((t.c_line < 0) || (t.c_line >= linecnt)){
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if (copyin( arg, (caddr_t)&cb, sizeof(cb))==0) {
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if (tp->t_line != cb.c_line) {
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if ((cb.c_line < 0) || (cb.c_line >= linecnt)) {
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u.u_error = EINVAL;
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break;
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}
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(*linesw[tp->t_line].l_ioctl)(tp, LDCLOSE, (caddr_t) 0, flag);
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(*linesw[tp->t_line].l_ioctl)(tp, LDCLOSE, (caddr_t) 0, mode);
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}
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ldmode = tp->t_lflag;
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flag = tp->t_lflag;
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tmod = 0;
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if ((tp->t_cflag & CBAUD) != (t.c_cflag & CBAUD))
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if ((tp->t_cflag&CBAUD) != (cb.c_cflag&CBAUD))
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tmod++;
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if ((tp->t_cflag & CSIZE) != (t.c_cflag & CSIZE))
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if ((tp->t_cflag&CSIZE) != (cb.c_cflag&CSIZE))
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tmod++;
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if ((tp->t_cflag ^ t.c_cflag ) & CDEF)
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if ((tp->t_cflag ^ cb.c_cflag )&CDEF)
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tmod++;
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if ((tp->t_iflag ^ t.c_iflag ) & IGNBRK)
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if ((tp->t_iflag ^ cb.c_iflag )&IGNBRK)
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tmod++;
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tp->t_iflag = t.c_iflag;
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tp->t_oflag = t.c_oflag;
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tp->t_cflag = t.c_cflag;
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tp->t_lflag = t.c_lflag;
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bcopy(t.c_tcc, tp->t_cc, sizeof(tp->t_cc));
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if (tp->t_line != t.c_line) {
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tp->t_line = t.c_line;
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(*linesw[tp->t_line].l_ioctl)(tp, LDIOC, (caddr_t) 0, flag);
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tp->t_iflag = cb.c_iflag;
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tp->t_oflag = cb.c_oflag;
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tp->t_cflag = cb.c_cflag;
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tp->t_lflag = cb.c_lflag;
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bcopy(cb.c_tcc, tp->t_cc, sizeof(tp->t_cc));
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if (tp->t_line != cb.c_line) {
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tp->t_line = cb.c_line;
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(*linesw[tp->t_line].l_ioctl)(tp, LDOPEN, (caddr_t) 0, mode);
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} else if (tp->t_lflag != flag) {
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(*linesw[tp->t_line].l_ioctl)(tp, LDCHG, (long) flag, mode);
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}
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else
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if (tp->t_lflag != ldmode)
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(*linesw[tp->t_line].l_ioctl)(tp, LDCHG, (long) ldmode, flag);
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if (tmod) return(1);
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if (tmod)
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return(1);
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} else
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u.u_error = EFAULT;
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break;
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case TCGETA:
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t.c_iflag = tp->t_iflag;
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t.c_oflag = tp->t_oflag;
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t.c_cflag = tp->t_cflag;
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t.c_lflag = tp->t_lflag;
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t.c_line = tp->t_line;
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bcopy (tp->t_cc, t.c_tcc, sizeof(tp->t_cc));
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if (copyout((caddr_t) &t, addr, sizeof(t)))
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cb.c_iflag = tp->t_iflag;
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cb.c_oflag = tp->t_oflag;
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cb.c_cflag = tp->t_cflag;
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cb.c_lflag = tp->t_lflag;
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cb.c_line = tp->t_line;
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bcopy (tp->t_cc, cb.c_tcc,NCC);
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if (copyout((caddr_t)&cb, arg, sizeof(cb)))
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u.u_error = EFAULT;
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break;
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case TCXONC:
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switch (addr){
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case 000:
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switch (arg) {
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case 0:
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(*tp->t_proc)(tp, T_SUSPEND);
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break;
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case 001:
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case 1:
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(*tp->t_proc)(tp, T_RESUME);
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break;
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case 002:
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case 2:
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(*tp->t_proc)(tp, T_BLOCK);
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break;
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case 003:
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case 3:
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(*tp->t_proc)(tp, T_UNBLOCK);
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break;
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default:
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@ -192,19 +221,21 @@ int com;
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break;
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case TCSBRK:
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ttywait(tp);
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if(addr == 0)
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if(arg == 0)
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(*tp->t_proc)(tp, T_BREAK);
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break;
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case TIOCFLUSH:
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ttyflush(tp, T_RESUME);
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ttyflush(tp, (FREAD|FWRITE));
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break;
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case TCFLSH:
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switch (addr){
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case 000:
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case 001:
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case 002:
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ttyflush(tp, addr);
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switch (arg) {
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case 0:
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case 1:
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case 2:
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ttyflush(tp, arg);
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break;
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default:
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u.u_error = EINVAL;
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}
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@ -214,52 +245,52 @@ int com;
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break;
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case TIOCSETP:
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ttywait(tp);
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ttyflush(tp, T_RESUME);
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ttyflush(tp, (FREAD|FWRITE));
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case TIOCSETN:
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if (copyin( addr, (caddr_t) &told, sizeof(told))){
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if (copyin( arg, (caddr_t)&tb, sizeof(tb))) {
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cflg = tp->t_cflag;
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iflg = tp->t_iflag;
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tp->t_iflag = 0;
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tp->t_oflag = 0;
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tp->t_lflag = 0;
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tp->t_cflag = (told.sg_ispeed & 0xf) | CREAD;
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tp->t_cflag |= CLOCAL | CSTOPB;
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tp->t_cc[VERASE] = told.sg_erase;
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tp->t_cc[VKILL] = told.sg_kill;
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ldmode = told.sg_flags;
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if (ldmode & O_TBDELAY){
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if (ldmode & O_TAB1)
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tp->t_cflag = (tb.sg_ispeed&CBAUD)|CREAD;
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tp->t_cflag |= CLOCAL|CSTOPB;
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tp->t_cc[VERASE] = tb.sg_erase;
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tp->t_cc[VKILL] = tb.sg_kill;
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flag = tb.sg_flags;
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if (flag&O_TBDELAY) {
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if (flag&O_TAB1)
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tp->t_oflag |= TAB1;
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if (ldmode & O_TAB2)
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if (flag&O_TAB2)
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tp->t_oflag |= TAB2;
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}
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if (ldmode & O_LCASE){
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if (flag&O_LCASE) {
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tp->t_iflag |= IUCLC;
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tp->t_oflag |= OLCUC;
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tp->t_lflag |= XCASE;
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}
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if (ldmode & O_ECHO)
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if (flag&O_ECHO)
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tp->t_lflag |= ECHO;
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if (ldmode & O_CRMOD){
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if (flag&O_CRMOD) {
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tp->t_iflag |= ICRNL;
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tp->t_oflag |= ONLCR;
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}
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if (ldmode & O_CR1)
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if (flag&O_CR1)
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tp->t_oflag |= CR1;
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if (ldmode & O_CR2)
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if (flag&O_CR2)
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tp->t_oflag |= CR2;
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if (ldmode & O_NL1)
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if (flag&O_NL1)
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tp->t_oflag |= NLDLY;
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if (ldmode & O_NL2)
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if (flag&O_NL2)
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tp->t_oflag |= NLDLY;
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if (ldmode & O_RAW){
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if (flag&O_RAW) {
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tp->t_cc[VTIME] = 6;
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tp->t_cc[VMIN] = 1;
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tp->t_iflag &= ~(ICRNL | IUCLC);
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tp->t_iflag &= ~(ICRNL|IUCLC);
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tp->t_cflag |= CS8;
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}
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else
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if (ldmode & O_CBREAK){
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if (flag&O_CBREAK) {
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tp->t_cc[VTIME] = 6;
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tp->t_cc[VMIN] = 1;
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tp->t_iflag |= IXON | ISTRIP | IGNBRK;
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@ -277,29 +308,29 @@ int com;
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}
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tp->t_iflag |= INPCK;
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tp->t_cflag |= PARENB;
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if (ldmode & O_ODDP)
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if (ldmode &O_EVENP){
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if (flag&O_ODDP)
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if (flag&O_EVENP) {
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tp->t_iflag &= ~INPCK;
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tp->t_cflag &= ~PARENB;
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}
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else
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tp->t_cflag |= PARODD;
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if (ldmode &O_VTDELAY)
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if (flag&O_VTDELAY)
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tp->t_oflag |= FF1;
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if (ldmode & O_BSDELAY)
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if (flag&O_BSDELAY)
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tp->t_oflag |= BS1;
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if (ldmode & O_TANDEM)
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if (flag&O_TANDEM)
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tp->t_iflag |= IXOFF;
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if (iflg & ISPCI)
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if (iflg&ISPCI)
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tp->t_iflag |= ISPCI;
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tmod = 0;
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if ((tp->t_cflag & CBAUD) != (cflg & CBAUD))
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if ((tp->t_cflag&CBAUD) != (cflg&CBAUD))
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tmod++;
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if ((tp->t_cflag & CSIZE) != (cflg & CSIZE))
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if ((tp->t_cflag&CSIZE) != (cflg&CSIZE))
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tmod++;
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if ((tp->t_cflag ^ cflg) & CDEF1)
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if ((tp->t_cflag ^ cflg)&CDEF1)
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tmod++;
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if ((tp->t_iflag ^ iflg) & IGNBRK)
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if ((tp->t_iflag ^ iflg)&IGNBRK)
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tmod++;
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if (tmod)
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return(1);
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@ -308,48 +339,48 @@ int com;
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u.u_error = EFAULT;
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break;
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case TIOCGETP:
|
||||
told.sg_ospeed = told.sg_ispeed = tp->t_cflag & CBAUD;
|
||||
told.sg_erase = tp->t_cc[VERASE];
|
||||
told.sg_kill = (long)tp->t_cc[VKILL];
|
||||
ldmode = 0;
|
||||
if ((tp->t_lflag & ICANON) || (tp->t_lflag & ISIG) )
|
||||
ldmode |= O_RAW;
|
||||
if ((tp->t_lflag & ICANON) || (tp->t_lflag & ISIG))
|
||||
ldmode |= O_CBREAK;
|
||||
if (tp->t_lflag & XCASE)
|
||||
ldmode |= O_LCASE;
|
||||
if (tp->t_lflag & ECHO)
|
||||
ldmode |= O_ECHO;
|
||||
if (tp->t_cflag & PARODD)
|
||||
ldmode |= O_ODDP;
|
||||
tb.sg_ospeed = tb.sg_ispeed = tp->t_cflag&CBAUD;
|
||||
tb.sg_erase = tp->t_cc[VERASE];
|
||||
tb.sg_kill = (long)tp->t_cc[VKILL];
|
||||
flag = 0;
|
||||
if ((tp->t_lflag&ICANON) || (tp->t_lflag&ISIG) )
|
||||
flag |= O_RAW;
|
||||
if ((tp->t_lflag&ICANON) || (tp->t_lflag&ISIG))
|
||||
flag |= O_CBREAK;
|
||||
if (tp->t_lflag&XCASE)
|
||||
flag |= O_LCASE;
|
||||
if (tp->t_lflag&ECHO)
|
||||
flag |= O_ECHO;
|
||||
if (tp->t_cflag&PARODD)
|
||||
flag |= O_ODDP;
|
||||
else
|
||||
if (tp->t_iflag & INPCK)
|
||||
ldmode |= O_EVENP;
|
||||
if (tp->t_iflag&INPCK)
|
||||
flag |= O_EVENP;
|
||||
else
|
||||
ldmode |= O_EVENP | O_ODDP;
|
||||
if (tp->t_oflag & ONLCR){
|
||||
ldmode |= O_CRMOD;
|
||||
if (tp->t_oflag & CR1)
|
||||
ldmode |= O_CR1;
|
||||
if (tp->t_oflag & CR2)
|
||||
ldmode |= O_CR2;
|
||||
flag |= O_EVENP | O_ODDP;
|
||||
if (tp->t_oflag&ONLCR) {
|
||||
flag |= O_CRMOD;
|
||||
if (tp->t_oflag&CR1)
|
||||
flag |= O_CR1;
|
||||
if (tp->t_oflag&CR2)
|
||||
flag |= O_CR2;
|
||||
}
|
||||
else {
|
||||
if (tp->t_oflag & CR1)
|
||||
ldmode |= O_NL1;
|
||||
if (tp->t_oflag & CR2)
|
||||
ldmode |= O_NL2;
|
||||
if (tp->t_oflag&CR1)
|
||||
flag |= O_NL1;
|
||||
if (tp->t_oflag&CR2)
|
||||
flag |= O_NL2;
|
||||
}
|
||||
if (((tp->t_oflag &TABDLY) == TAB3) || (tp->t_oflag & TAB1))
|
||||
ldmode |= O_TBDELAY;
|
||||
if (tp->t_oflag & FF1)
|
||||
ldmode |= O_VTDELAY;
|
||||
if (tp->t_oflag & BSDLY)
|
||||
ldmode |= O_BSDELAY;
|
||||
if (tp->t_iflag & IXOFF)
|
||||
ldmode |= O_TANDEM;
|
||||
told.sg_flags = ldmode;
|
||||
if (copyout((caddr_t) &told, addr, sizeof(told)))
|
||||
if (((tp->t_oflag&TABDLY) == TAB3) || (tp->t_oflag&TAB1))
|
||||
flag |= O_TBDELAY;
|
||||
if (tp->t_oflag&FF1)
|
||||
flag |= O_VTDELAY;
|
||||
if (tp->t_oflag&BSDLY)
|
||||
flag |= O_BSDELAY;
|
||||
if (tp->t_iflag&IXOFF)
|
||||
flag |= O_TANDEM;
|
||||
tb.sg_flags = flag;
|
||||
if (copyout((caddr_t)&tb, arg, sizeof(tb)))
|
||||
u.u_error = EFAULT;
|
||||
break;
|
||||
case TCXCLUSE:
|
||||
|
|
@ -359,10 +390,10 @@ int com;
|
|||
tp->t_state &= ~XCLUSE;
|
||||
break;
|
||||
case TIOCSETC:
|
||||
if (copyin( addr, (caddr_t) &toc, sizeof(toc))){
|
||||
if (copyin( arg, (caddr_t)&toc, sizeof(toc))) {
|
||||
tp->t_cc[VINTR] = toc.t_intrc;
|
||||
tp->t_cc[VQUIT] = toc.t_quitc;
|
||||
if (tp->t_lflag & ICANON)
|
||||
if (tp->t_lflag&ICANON)
|
||||
tp->t_cc[VEOF] = toc.t_eofc;
|
||||
}
|
||||
else
|
||||
|
|
@ -375,12 +406,12 @@ int com;
|
|||
toc.t_startc = CSTART;
|
||||
toc.t_stopc = CSTOP;
|
||||
toc.t_brkc = 0;
|
||||
if (copyout((caddr_t)&toc, addr, sizeof(toc)))
|
||||
if (copyout((caddr_t)&toc, arg, sizeof(toc)))
|
||||
u.u_error =EFAULT;
|
||||
break;
|
||||
default:
|
||||
if ((com & IOCTYPE) == LDIOC)
|
||||
(*linesw[tp->t_line].l_ioctl)(tp, com, addr, flag);
|
||||
if ((cmd&IOCTYPE) == LDIOC)
|
||||
(*linesw[tp->t_line].l_ioctl)(tp, cmd, arg, mode);
|
||||
else
|
||||
u.u_error = EINVAL;
|
||||
}
|
||||
|
|
@ -404,48 +435,55 @@ register struct tty *tp;
|
|||
{
|
||||
|
||||
dvi();
|
||||
while ((tp->t_outq.c_cc) || (tp->t_state & (BUSY | TIMEOUT))){
|
||||
while (tp->t_outq.c_cc || (tp->t_state&(BUSY|TIMEOUT))) {
|
||||
tp->t_state |= TTIOW;
|
||||
sleep( &tp->t_oflag, TTOPRI);
|
||||
sleep(&tp->t_oflag, TTOPRI);
|
||||
}
|
||||
evi();
|
||||
}
|
||||
|
||||
ttyflush(tp, com)
|
||||
/*
|
||||
* flush TTY queues
|
||||
*/
|
||||
ttyflush(tp, cmd)
|
||||
register struct tty *tp;
|
||||
{
|
||||
register struct cblock *p;
|
||||
register unsigned s;
|
||||
register struct cblock *cp;
|
||||
register s;
|
||||
|
||||
if (com & T_SUSPEND){
|
||||
while (p = getcb ( &tp->t_outq))
|
||||
putcf(p);
|
||||
if (cmd&FWRITE) {
|
||||
while ((cp = getcb(&tp->t_outq)) != NULL)
|
||||
putcf(cp);
|
||||
(*tp->t_proc)(tp, T_WFLUSH);
|
||||
if (tp->t_state & OASLP){
|
||||
if (tp->t_state&OASLP) {
|
||||
tp->t_state &= ~OASLP;
|
||||
wakeup(&tp->t_outq);
|
||||
}
|
||||
if (tp->t_state & TTIOW){
|
||||
if (tp->t_state&TTIOW) {
|
||||
tp->t_state &= ~TTIOW;
|
||||
wakeup(&tp->t_oflag);
|
||||
}
|
||||
}
|
||||
if (com & T_TIME){
|
||||
while (p = (getcb(&tp->t_canq)))
|
||||
putcf(p);
|
||||
if (cmd&FREAD) {
|
||||
while ((cp = getcb(&tp->t_canq)) != NULL)
|
||||
putcf(cp);
|
||||
s = dvi();
|
||||
while (p = (getcb(&tp->t_rawq)))
|
||||
putcf(p);
|
||||
while ((cp = getcb(&tp->t_rawq)) != NULL)
|
||||
putcf(cp);
|
||||
tp->t_delct = 0;
|
||||
rvi(s);
|
||||
(*tp->t_proc)(tp, T_RFLUSH);
|
||||
if (tp->t_state & IASLP){
|
||||
if (tp->t_state&IASLP) {
|
||||
tp->t_state &= ~IASLP;
|
||||
wakeup(&tp->t_rawq);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Transfer raw input list to canonical list,
|
||||
* doing erase-kill processing and handling escapes.
|
||||
*/
|
||||
canon(tp)
|
||||
register struct tty *tp;
|
||||
{
|
||||
|
|
@ -457,22 +495,22 @@ register struct tty *tp;
|
|||
dvi(tp);
|
||||
if ((tp->t_rawq.c_cc) == 0)
|
||||
tp->t_delct = 0;
|
||||
while (tp->t_delct == 0){
|
||||
if ((tp->t_state & CARR_ON) == 0){
|
||||
while (tp->t_delct == 0) {
|
||||
if ((tp->t_state&CARR_ON) == 0) {
|
||||
evi();
|
||||
return;
|
||||
}
|
||||
if (!(tp->t_lflag & ICANON) && !(tp->t_cc[VEOF])){
|
||||
if (!(tp->t_lflag&ICANON)&&!(tp->t_cc[VEOF])) {
|
||||
if (tp->t_cc[VEOL] == 0)
|
||||
break;
|
||||
tp->t_state &= ~RTO;
|
||||
if ((tp->t_state & TACT) == 0)
|
||||
if ((tp->t_state&TACT) == 0)
|
||||
tttimeout(tp);
|
||||
}
|
||||
tp->t_state |= IASLP;
|
||||
sleep(tp, TTIPRI);
|
||||
}
|
||||
if (!(tp->t_lflag & ICANON)){
|
||||
if (!(tp->t_lflag&ICANON)) {
|
||||
tp->t_canq = tp->t_rawq;
|
||||
tp->t_rawq = ttnulq;
|
||||
tp->t_delct=0;
|
||||
|
|
@ -482,29 +520,29 @@ register struct tty *tp;
|
|||
evi();
|
||||
cbp = canonb;
|
||||
nc = 0;
|
||||
if (tp->t_state & IEXTPROC){
|
||||
if (tp->t_state&IEXTPROC) {
|
||||
do {
|
||||
if (((c = getc(&tp->t_rawq)) < 0) || (c == tp->t_cc[VEOF]))
|
||||
break;
|
||||
putc(c, &tp->t_canq);
|
||||
sysinfo.canch++;
|
||||
}
|
||||
while ((c != '\n') && (c != tp->t_cc[VEOL]));
|
||||
while ((c != '\n')&&(c != tp->t_cc[VEOL]));
|
||||
mret:
|
||||
tp->t_delct--;
|
||||
return;
|
||||
}
|
||||
while ((c = getc(&tp->t_rawq)) >= 0){
|
||||
while ((c = getc(&tp->t_rawq)) >= 0) {
|
||||
if (nc == 0)
|
||||
if (c == '\\')
|
||||
nc++;
|
||||
else {
|
||||
if (c == tp->t_cc[VERASE]){
|
||||
if (c == tp->t_cc[VERASE]) {
|
||||
if (cbp > canonb)
|
||||
cbp--;
|
||||
continue;
|
||||
}
|
||||
if (c == tp->t_cc[VKILL]){
|
||||
if (c == tp->t_cc[VKILL]) {
|
||||
cbp = canonb;
|
||||
continue;
|
||||
}
|
||||
|
|
@ -520,8 +558,8 @@ mret:
|
|||
(c == tp->t_cc[VEOF]))
|
||||
cbp--;
|
||||
else
|
||||
if (tp->t_lflag & XCASE){
|
||||
if ((c < 0x80) && (maptab[c])){
|
||||
if (tp->t_lflag&XCASE) {
|
||||
if ((c < 0x80)&&(maptab[c])) {
|
||||
cbp--;
|
||||
c = maptab[c];
|
||||
}
|
||||
|
|
@ -536,7 +574,7 @@ mret:
|
|||
*cbp++ = c;
|
||||
if ((c == '\n') || (c == tp->t_cc[VEOL]))
|
||||
break;
|
||||
if (cbp >= &canonb[Canbsiz])
|
||||
if (cbp >=&canonb[Canbsiz])
|
||||
cbp--;
|
||||
}
|
||||
c = cbp - canonb;
|
||||
|
|
@ -547,6 +585,11 @@ mret:
|
|||
goto mret;
|
||||
}
|
||||
|
||||
/*
|
||||
* Restart typewriter output following a delay timeout.
|
||||
* The name of the routine is passed to the timeout
|
||||
* subroutine and it is called during a clock interrupt.
|
||||
*/
|
||||
ttrstrt(tp)
|
||||
register struct tty *tp;
|
||||
{
|
||||
|
|
@ -554,6 +597,10 @@ register struct tty *tp;
|
|||
(*tp->t_proc)(tp, T_TIME);
|
||||
}
|
||||
|
||||
/*
|
||||
* Called from device's read routine after it has
|
||||
* calculated the tty-structure given as argument.
|
||||
*/
|
||||
ttread(tp)
|
||||
register struct tty *tp;
|
||||
{
|
||||
|
|
@ -568,13 +615,13 @@ register struct tty *tp;
|
|||
ur;
|
||||
|
||||
tc = &tp->t_canq;
|
||||
if (tc->c_cc == 0){
|
||||
if (u.u_fmode & FPIPE)
|
||||
if (tc->c_cc == 0) {
|
||||
if (u.u_fmode&FPIPE)
|
||||
return;
|
||||
canon(tp);
|
||||
}
|
||||
while ((u.u_count) && (u.u_error == 0)){
|
||||
if (u.u_count >= CLSIZE){
|
||||
while ((u.u_count)&&(u.u_error == 0)) {
|
||||
if (u.u_count >= CLSIZE) {
|
||||
if ((ur.cf = getcb(tc)) == 0)
|
||||
break;
|
||||
count = min(u.u_count, ur.cf->c_last - ur.cf->c_first);
|
||||
|
|
@ -584,7 +631,7 @@ register struct tty *tp;
|
|||
}
|
||||
else {
|
||||
count = 0;
|
||||
while (count < u.u_count){
|
||||
while (count < u.u_count) {
|
||||
if ((c = getc(tc)) < 0)
|
||||
break;
|
||||
ur.rc[count] = c;
|
||||
|
|
@ -598,30 +645,34 @@ register struct tty *tp;
|
|||
u.u_base.half.right += count;
|
||||
u.u_count -= count;
|
||||
}
|
||||
if ((tp->t_state & TBLOCK) && (tp->t_rawq.c_cc < TTXOLO))
|
||||
if ((tp->t_state&TBLOCK)&&(tp->t_rawq.c_cc < TTXOLO))
|
||||
(*tp->t_proc)(tp, T_UNBLOCK);
|
||||
}
|
||||
|
||||
/*
|
||||
* Called from device's write routine after it has
|
||||
* calculated the tty-structure given as argument.
|
||||
*/
|
||||
ttwrite(tp)
|
||||
register struct tty *tp;
|
||||
{
|
||||
register count;
|
||||
register struct cblock *cf;
|
||||
|
||||
if (tp->t_state & CARR_ON){
|
||||
while (u.u_count){
|
||||
if (tp->t_state&CARR_ON) {
|
||||
while (u.u_count) {
|
||||
dvi();
|
||||
while (tp->t_outq.c_cc > tthiwat[tp->t_cflag & CBAUD]) {
|
||||
while (tp->t_outq.c_cc > tthiwat[tp->t_cflag&CBAUD]) {
|
||||
(*tp->t_proc)(tp, T_OUTPUT);
|
||||
tp->t_state |= OASLP;
|
||||
sleep(&tp->t_outq, TTOPRI);
|
||||
}
|
||||
evi();
|
||||
if (u.u_count >= 8){
|
||||
if (u.u_count >= 8) {
|
||||
if ((cf = getcf()) == 0)
|
||||
break;
|
||||
count = min(u.u_count, cf->c_last);
|
||||
if (copyin(u.u_base, cf->c_data, count)){
|
||||
if (copyin(u.u_base, cf->c_data, count)) {
|
||||
u.u_error = EFAULT;
|
||||
putcf(cf);
|
||||
break;
|
||||
|
|
@ -633,7 +684,7 @@ register struct tty *tp;
|
|||
}
|
||||
else {
|
||||
char wc;
|
||||
if (fubyte(u.u_base.l++, &wc)){
|
||||
if (fubyte(u.u_base.l++, &wc)) {
|
||||
u.u_error = EFAULT;
|
||||
break;
|
||||
}
|
||||
|
|
@ -649,7 +700,7 @@ register struct tty *tp;
|
|||
|
||||
ttchkopen()
|
||||
{
|
||||
if (noterm < numterm){
|
||||
if (noterm < numterm) {
|
||||
noterm++;
|
||||
return(0);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue