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550 lines
10 KiB
550 lines
10 KiB
8 years ago
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/*
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* V7/BSD HACKERS: SEE NOTES UNDER mode(2) !!!
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*
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* This file is #included so the main file can set parameters such as HOWMANY.
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* See the main files (rz.c/sz.c) for compile instructions.
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*/
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char *Copyr = "Copyright 1994 Omen Technology Inc All Rights Reserved";
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#ifdef V7
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#include <sys/types.h>
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#include <sys/stat.h>
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#define STAT
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#include <sgtty.h>
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#define OS "V7/BSD"
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char *getenv(), *ttyname();
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#ifdef LLITOUT
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long Locmode; /* Saved "local mode" for 4.x BSD "new driver" */
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long Locbit = LLITOUT; /* Bit SUPPOSED to disable output translations */
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#include <strings.h>
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#endif
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#endif
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#ifdef USG
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#include <sys/types.h>
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#include <sys/stat.h>
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#define STAT
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#include <termio.h>
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#define OS "SYS III/V"
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#define MODE2OK
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#include <string.h>
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#ifndef OLD
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#include <stdlib.h>
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#endif
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#include <unistd.h>
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#endif
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#ifdef POSIX
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#define USG
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#define STAT
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#include <termios.h>
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#define OS "POSIX"
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#ifndef READCHECK
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#ifndef FIONREAD
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#define SV
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#endif
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#endif
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#endif
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#ifdef OLD
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char *ttyname();
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char *getenv();
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#define time_t long
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#endif
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#ifdef T6K
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#include <sys/ioctl.h> /* JPRadley: for the Tandy 6000 */
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#endif
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#include <setjmp.h>
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#if HOWMANY > 255
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Howmany must be 255 or less
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#endif
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/*
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* Some systems (Venix, Coherent, Regulus) may not support tty raw mode
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* read(2) the same way as Unix. ONEREAD must be defined to force one
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* character reads for these systems. Added 7-01-84 CAF
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*/
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#define sendline(c) putc(c & 0377, Ttystream)
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#define xsendline(c) putc(c, Ttystream)
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char *Nametty;
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FILE *Ttystream;
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int Tty;
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char linbuf[HOWMANY];
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char xXbuf[BUFSIZ];
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int Lleft=0; /* number of characters in linbuf */
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jmp_buf tohere; /* For the interrupt on RX timeout */
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#ifdef ONEREAD
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/* Sorry, Regulus and some others don't work right in raw mode! */
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int Readnum = 1; /* Number of bytes to ask for in read() from modem */
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#else
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int Readnum = HOWMANY; /* Number of bytes to ask for in read() from modem */
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#endif
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int Verbose=0;
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/*
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* The following uses an external rdchk() routine if available,
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* otherwise defines the function for BSD or fakes it for SYSV.
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*/
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#ifndef READCHECK
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#ifdef FIONREAD
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#define READCHECK
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/*
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* Return non 0 iff something to read from io descriptor f
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*/
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rdchk(f)
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{
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static long lf;
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ioctl(f, FIONREAD, &lf);
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return ((int) lf);
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}
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#else /* FIONREAD */
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#ifdef SV
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#define READCHECK
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#include <fcntl.h>
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int checked = 0;
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/*
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* Nonblocking I/O is a bit different in System V, Release 2
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* Note: this rdchk vsn throws away a byte, OK for ZMODEM
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* sender because protocol design anticipates this problem.
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*/
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#define EATSIT
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rdchk(f)
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{
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int lf, savestat;
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static char bchecked;
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savestat = fcntl(f, F_GETFL) ;
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#ifdef O_NDELAY
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fcntl(f, F_SETFL, savestat | O_NDELAY) ;
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#else
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fcntl(f, F_SETFL, savestat | O_NONBLOCK) ;
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#endif
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lf = read(f, &bchecked, 1) ;
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fcntl(f, F_SETFL, savestat) ;
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checked = bchecked & 0377; /* force unsigned byte */
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return(lf) ;
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}
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#endif
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#endif
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#endif
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struct {
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unsigned baudr;
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int speedcode;
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} speeds[] = {
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110, B110,
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#ifdef B150
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150, B150,
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#endif
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300, B300,
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600, B600,
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1200, B1200,
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2400, B2400,
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4800, B4800,
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9600, B9600,
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#ifdef B19200
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19200, B19200,
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#endif
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#ifdef EXTA
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19200, EXTA,
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#endif
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#ifdef B38400
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38400, B38400,
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#endif
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#ifdef EXTB
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38400, EXTB,
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#endif
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0, 0
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};
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static unsigned
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getspeed(code)
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{
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register n;
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for (n=0; speeds[n].baudr; ++n)
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if (speeds[n].speedcode == code)
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return speeds[n].baudr;
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if (code > 49)
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return ((unsigned)code);
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return 1; /* Assume fifo if ioctl failed */
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}
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#ifdef ICANON
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#ifdef POSIX
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struct termios oldtty, tty;
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#else
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struct termio oldtty, tty;
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#endif
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#else
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struct sgttyb oldtty, tty;
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struct tchars oldtch, tch;
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#endif
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/*
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* mode(n)
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* 3: save old tty stat, set raw mode with flow control
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* 2: set XON/XOFF for sb/sz with ZMODEM or YMODEM-g
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* 1: save old tty stat, set raw mode
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* 0: restore original tty mode
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*/
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mode(n)
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{
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static did0 = FALSE;
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vfile("mode:%d", n);
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switch(n) {
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#ifdef USG
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case 2: /* Un-raw mode used by sz, sb when -g detected */
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#ifdef POSIX
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if(!did0)
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(void) tcgetattr(Tty, &oldtty);
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#else
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if(!did0)
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(void) ioctl(Tty, TCGETA, &oldtty);
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#endif
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tty = oldtty;
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tty.c_iflag = BRKINT|IXON;
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tty.c_oflag = 0; /* Transparent output */
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tty.c_cflag &= ~(PARENB|CSIZE); /* Disable parity */
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tty.c_cflag |= (CREAD|CS8); /* Set character size = 8 */
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#ifdef READCHECK
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tty.c_lflag = Zmodem ? 0 : ISIG;
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tty.c_cc[VINTR] = Zmodem ? -1:030; /* Interrupt char */
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#else
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tty.c_lflag = ISIG;
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tty.c_cc[VINTR] = Zmodem ? 03:030; /* Interrupt char */
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#endif
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tty.c_cc[VQUIT] = -1; /* Quit char */
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#ifdef NFGVMIN
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tty.c_cc[VMIN] = 1;
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#else
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tty.c_cc[VMIN] = 3; /* This many chars satisfies reads */
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#endif
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tty.c_cc[VTIME] = 1; /* or in this many tenths of seconds */
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#ifdef POSIX
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(void) tcsetattr(Tty, TCSADRAIN, &tty);
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#else
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(void) ioctl(Tty, TCSETAW, &tty);
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#endif
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did0 = TRUE;
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return OK;
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case 1:
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case 3:
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#ifdef POSIX
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if(!did0)
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(void) tcgetattr(Tty, &oldtty);
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#else
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if(!did0)
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(void) ioctl(Tty, TCGETA, &oldtty);
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#endif
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tty = oldtty;
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tty.c_iflag = n==3 ? (IXON|IXOFF) : IXOFF;
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tty.c_lflag = 0;
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tty.c_oflag = 0;
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tty.c_cflag &= ~(CSIZE|PARENB); /* disable parity */
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tty.c_cflag |= CS8; /* Set character size = 8 */
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#ifdef NFGVMIN
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tty.c_cc[VMIN] = 1; /* This many chars satisfies reads */
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#else
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tty.c_cc[VMIN] = HOWMANY; /* This many chars satisfies reads */
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#endif
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tty.c_cc[VTIME] = 1; /* or in this many tenths of seconds */
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#ifdef POSIX
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(void) tcsetattr(Tty, TCSADRAIN, &tty);
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#else
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(void) ioctl(Tty, TCSETAW, &tty);
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#endif
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did0 = TRUE;
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#ifdef POSIX
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Baudrate = getspeed(cfgetospeed(&tty));
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#else
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Baudrate = getspeed(tty.c_cflag & CBAUD);
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#endif
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vfile("Baudrate = %u\n", Baudrate);
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return OK;
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#endif
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#ifdef V7
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/*
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* NOTE: this should transmit all 8 bits and at the same time
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* respond to XOFF/XON flow control. If no FIONREAD or other
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* rdchk() alternative, also must respond to INTRRUPT char
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* This doesn't work with V7. It should work with LLITOUT,
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* but LLITOUT was broken on the machine I tried it on.
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*/
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case 2: /* Un-raw mode used by sz, sb when -g detected */
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if(!did0) {
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ioctl(Tty, TIOCEXCL, 0);
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ioctl(Tty, TIOCGETP, &oldtty);
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ioctl(Tty, TIOCGETC, &oldtch);
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#ifdef LLITOUT
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ioctl(Tty, TIOCLGET, &Locmode);
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#endif
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}
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tty = oldtty;
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tch = oldtch;
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#ifdef READCHECK
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tch.t_intrc = Zmodem ? -1:030; /* Interrupt char */
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#else
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tch.t_intrc = Zmodem ? 03:030; /* Interrupt char */
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#endif
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tty.sg_flags |= (ODDP|EVENP|CBREAK);
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tty.sg_flags &= ~(ALLDELAY|CRMOD|ECHO|LCASE);
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ioctl(Tty, TIOCSETP, &tty);
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ioctl(Tty, TIOCSETC, &tch);
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#ifdef LLITOUT
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ioctl(Tty, TIOCLBIS, &Locbit);
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#else
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bibi(99); /* un-raw doesn't work w/o lit out */
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#endif
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did0 = TRUE;
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return OK;
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case 1:
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case 3:
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if(!did0) {
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ioctl(Tty, TIOCEXCL, 0);
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ioctl(Tty, TIOCGETP, &oldtty);
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ioctl(Tty, TIOCGETC, &oldtch);
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#ifdef LLITOUT
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ioctl(Tty, TIOCLGET, &Locmode);
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#endif
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}
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tty = oldtty;
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tty.sg_flags |= (RAW|TANDEM);
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tty.sg_flags &= ~ECHO;
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ioctl(Tty, TIOCSETP, &tty);
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did0 = TRUE;
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Baudrate = getspeed(tty.sg_ospeed);
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return OK;
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#endif
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case 0:
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if(!did0)
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return ERROR;
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#ifdef USG
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#ifdef POSIX
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(void) tcdrain(Tty); /* Wait for output to drain */
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(void) tcflush(Tty, TCIFLUSH); /* Flush input queue */
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(void) tcsetattr(Tty, TCSADRAIN, &oldtty); /* Restore */
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(void) tcflow(Tty, TCOON); /* Restart output */
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#else
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(void) ioctl(Tty, TCSBRK, 1); /* Wait for output to drain */
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(void) ioctl(Tty, TCFLSH, 1); /* Flush input queue */
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(void) ioctl(Tty, TCSETAW, &oldtty); /* Restore modes */
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(void) ioctl(Tty, TCXONC,1); /* Restart output */
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#endif
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#endif
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#ifdef V7
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ioctl(Tty, TIOCSETP, &oldtty);
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ioctl(Tty, TIOCSETC, &oldtch);
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ioctl(Tty, TIOCNXCL, 0);
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#ifdef LLITOUT
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ioctl(Tty, TIOCLSET, &Locmode);
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#endif
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#endif
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return OK;
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default:
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return ERROR;
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}
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}
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sendbrk()
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||
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{
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#ifdef V7
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||
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#ifdef TIOCSBRK
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#define CANBREAK
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||
|
|
sleep(1);
|
||
|
|
ioctl(Tty, TIOCSBRK, 0);
|
||
|
|
sleep(1);
|
||
|
|
ioctl(Tty, TIOCCBRK, 0);
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
#ifdef USG
|
||
|
|
#define CANBREAK
|
||
|
|
#ifdef POSIX
|
||
|
|
tcsendbreak(Tty, 200);
|
||
|
|
#else
|
||
|
|
ioctl(Tty, TCSBRK, 0);
|
||
|
|
#endif
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Initialize tty device for serial file xfer */
|
||
|
|
inittty()
|
||
|
|
{
|
||
|
|
if ((Nametty = ttyname(2)) && *Nametty) {
|
||
|
|
Tty = open(Nametty, 2);
|
||
|
|
} else {
|
||
|
|
Tty = open(Nametty = "/dev/tty", 2);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (Tty <= 0) {
|
||
|
|
perror(Nametty); exit(2);
|
||
|
|
}
|
||
|
|
Ttystream = fdopen(Tty, "w");
|
||
|
|
}
|
||
|
|
|
||
|
|
flushmoc()
|
||
|
|
{
|
||
|
|
fflush(Ttystream);
|
||
|
|
}
|
||
|
|
flushmo()
|
||
|
|
{
|
||
|
|
fflush(Ttystream);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This version of readline is reasoably well suited for
|
||
|
|
* reading many characters.
|
||
|
|
*
|
||
|
|
* timeout is in tenths of seconds
|
||
|
|
*/
|
||
|
|
void
|
||
|
|
alrm(c)
|
||
|
|
{
|
||
|
|
longjmp(tohere, -1);
|
||
|
|
}
|
||
|
|
readline(timeout)
|
||
|
|
int timeout;
|
||
|
|
{
|
||
|
|
register n;
|
||
|
|
static char *cdq; /* pointer for removing chars from linbuf */
|
||
|
|
|
||
|
|
if (--Lleft >= 0) {
|
||
|
|
if (Verbose > 8) {
|
||
|
|
fprintf(stderr, "%02x ", *cdq&0377);
|
||
|
|
}
|
||
|
|
return (*cdq++ & 0377);
|
||
|
|
}
|
||
|
|
n = timeout/10;
|
||
|
|
if (n < 2)
|
||
|
|
n = 2;
|
||
|
|
if (Verbose > 5)
|
||
|
|
fprintf(stderr, "Calling read: alarm=%d Readnum=%d ",
|
||
|
|
n, Readnum);
|
||
|
|
if (setjmp(tohere)) {
|
||
|
|
#ifdef TIOCFLUSH
|
||
|
|
/* ioctl(Tty, TIOCFLUSH, 0); */
|
||
|
|
#endif
|
||
|
|
Lleft = 0;
|
||
|
|
if (Verbose>1)
|
||
|
|
fprintf(stderr, "Readline:TIMEOUT\n");
|
||
|
|
return TIMEOUT;
|
||
|
|
}
|
||
|
|
signal(SIGALRM, alrm); alarm(n);
|
||
|
|
errno = 0;
|
||
|
|
Lleft=read(Tty, cdq=linbuf, Readnum);
|
||
|
|
alarm(0);
|
||
|
|
if (Verbose > 5) {
|
||
|
|
fprintf(stderr, "Read returned %d bytes errno=%d\n",
|
||
|
|
Lleft, errno);
|
||
|
|
}
|
||
|
|
if (Lleft < 1)
|
||
|
|
return TIMEOUT;
|
||
|
|
if (Verbose > 8) {
|
||
|
|
for (n = Lleft; --n >= 0; ) {
|
||
|
|
fprintf(stderr, "%02x ", *cdq&0377);
|
||
|
|
}
|
||
|
|
fprintf(stderr, "\n");
|
||
|
|
}
|
||
|
|
--Lleft;
|
||
|
|
return (*cdq++ & 0377);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Purge the modem input queue of all characters
|
||
|
|
*/
|
||
|
|
purgeline()
|
||
|
|
{
|
||
|
|
Lleft = 0;
|
||
|
|
#ifdef USG
|
||
|
|
#ifdef POSIX
|
||
|
|
tcflush(Tty, 0);
|
||
|
|
#else
|
||
|
|
ioctl(Tty, TCFLSH, 0);
|
||
|
|
#endif
|
||
|
|
#else
|
||
|
|
lseek(Tty, 0L, 2);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* send cancel string to get the other end to shut up */
|
||
|
|
canit()
|
||
|
|
{
|
||
|
|
static char canistr[] = {
|
||
|
|
24,24,24,24,24,24,24,24,24,24,8,8,8,8,8,8,8,8,8,8,0
|
||
|
|
};
|
||
|
|
|
||
|
|
zmputs(canistr);
|
||
|
|
Lleft=0; /* Do read next time ... */
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Send a string to the modem, processing for \336 (sleep 1 sec)
|
||
|
|
* and \335 (break signal)
|
||
|
|
*/
|
||
|
|
zmputs(s)
|
||
|
|
char *s;
|
||
|
|
{
|
||
|
|
register c;
|
||
|
|
|
||
|
|
while (*s) {
|
||
|
|
switch (c = *s++) {
|
||
|
|
case '\336':
|
||
|
|
sleep(1); continue;
|
||
|
|
case '\335':
|
||
|
|
sendbrk(); continue;
|
||
|
|
default:
|
||
|
|
sendline(c);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
flushmo();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* VARARGS1 */
|
||
|
|
vfile(f, a, b, c, d)
|
||
|
|
char *f;
|
||
|
|
long a, b, c, d;
|
||
|
|
{
|
||
|
|
if (Verbose > 2) {
|
||
|
|
fprintf(stderr, f, a, b, c, d);
|
||
|
|
fprintf(stderr, "\n");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* End of rbsb.c */
|