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-rw-r--r--comms/tn3270/files/telnet/sys_bsd.c740
1 files changed, 0 insertions, 740 deletions
diff --git a/comms/tn3270/files/telnet/sys_bsd.c b/comms/tn3270/files/telnet/sys_bsd.c
deleted file mode 100644
index fc0d340a509..00000000000
--- a/comms/tn3270/files/telnet/sys_bsd.c
+++ /dev/null
@@ -1,740 +0,0 @@
-/* $NetBSD: sys_bsd.c,v 1.1.1.1 2010/01/17 01:33:30 dholland Exp $ */
-/* From NetBSD: sys_bsd.c,v 1.32 2004/11/10 20:26:43 christos Exp */
-
-/*
- * Copyright (c) 1988, 1990, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-#ifndef lint
-#if 0
-from: static char sccsid[] = "@(#)sys_bsd.c 8.4 (Berkeley) 5/30/95";
-#else
-__RCSID("$NetBSD: sys_bsd.c,v 1.1.1.1 2010/01/17 01:33:30 dholland Exp $");
-#endif
-#endif /* not lint */
-
-/*
- * The following routines try to encapsulate what is system dependent
- * (at least between 4.x and dos) which is used in telnet.c.
- */
-
-
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-#include <signal.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <errno.h>
-#include <poll.h>
-#include <arpa/telnet.h>
-
-#include "ring.h"
-#include "defines.h"
-#include "externs.h"
-#include "types.h"
-
-#define SIG_FUNC_RET void
-
-SIG_FUNC_RET susp(int);
-SIG_FUNC_RET ayt(int);
-
-SIG_FUNC_RET intr(int);
-SIG_FUNC_RET intr2(int);
-SIG_FUNC_RET sendwin(int);
-
-
-int
- tout, /* Output file descriptor */
- tin, /* Input file descriptor */
- net;
-
-struct termios old_tc = { 0 };
-extern struct termios new_tc;
-
-# ifndef TCSANOW
-# ifdef TCSETS
-# define TCSANOW TCSETS
-# define TCSADRAIN TCSETSW
-# define tcgetattr(f, t) ioctl(f, TCGETS, (char *)t)
-# else
-# ifdef TCSETA
-# define TCSANOW TCSETA
-# define TCSADRAIN TCSETAW
-# define tcgetattr(f, t) ioctl(f, TCGETA, (char *)t)
-# else
-# define TCSANOW TIOCSETA
-# define TCSADRAIN TIOCSETAW
-# define tcgetattr(f, t) ioctl(f, TIOCGETA, (char *)t)
-# endif
-# endif
-# define tcsetattr(f, a, t) ioctl(f, a, (char *)t)
-# define cfgetospeed(ptr) ((ptr)->c_cflag&CBAUD)
-# ifdef CIBAUD
-# define cfgetispeed(ptr) (((ptr)->c_cflag&CIBAUD) >> IBSHIFT)
-# else
-# define cfgetispeed(ptr) cfgetospeed(ptr)
-# endif
-# endif /* TCSANOW */
-
-
-void
-init_sys(void)
-{
- tout = fileno(stdout);
- tin = fileno(stdin);
-
- errno = 0;
-}
-
-
-int
-TerminalWrite(char *buf, int n)
-{
- return write(tout, buf, n);
-}
-
-int
-TerminalRead(unsigned char *buf, int n)
-{
- return read(tin, buf, n);
-}
-
-/*
- *
- */
-
-int
-TerminalAutoFlush(void)
-{
- return 1;
-}
-
-#ifdef KLUDGELINEMODE
-extern int kludgelinemode;
-#endif
-/*
- * TerminalSpecialChars()
- *
- * Look at an input character to see if it is a special character
- * and decide what to do.
- *
- * Output:
- *
- * 0 Don't add this character.
- * 1 Do add this character
- */
-
-int
-TerminalSpecialChars(int c)
-{
- if (c == termIntChar) {
- intp();
- return 0;
- } else if (c == termQuitChar) {
-#ifdef KLUDGELINEMODE
- if (kludgelinemode)
- sendbrk();
- else
-#endif
- sendabort();
- return 0;
- } else if (c == termEofChar) {
- if (my_want_state_is_will(TELOPT_LINEMODE)) {
- sendeof();
- return 0;
- }
- return 1;
- } else if (c == termSuspChar) {
- sendsusp();
- return(0);
- } else if (c == termFlushChar) {
- xmitAO(); /* Transmit Abort Output */
- return 0;
- } else if (!MODE_LOCAL_CHARS(globalmode)) {
- if (c == termKillChar) {
- xmitEL();
- return 0;
- } else if (c == termEraseChar) {
- xmitEC(); /* Transmit Erase Character */
- return 0;
- }
- }
- return 1;
-}
-
-
-/*
- * Flush output to the terminal
- */
-
-void
-TerminalFlushOutput(void)
-{
- int com = 0;
- (void) ioctl(fileno(stdout), TIOCFLUSH, &com);
-}
-
-void
-TerminalSaveState(void)
-{
- tcgetattr(0, &old_tc);
-
- new_tc = old_tc;
-}
-
-cc_t *
-tcval(int func)
-{
- switch(func) {
- case SLC_IP: return(&termIntChar);
- case SLC_ABORT: return(&termQuitChar);
- case SLC_EOF: return(&termEofChar);
- case SLC_EC: return(&termEraseChar);
- case SLC_EL: return(&termKillChar);
- case SLC_XON: return(&termStartChar);
- case SLC_XOFF: return(&termStopChar);
- case SLC_FORW1: return(&termForw1Char);
- case SLC_FORW2: return(&termForw2Char);
- case SLC_AO: return(&termFlushChar);
- case SLC_SUSP: return(&termSuspChar);
- case SLC_EW: return(&termWerasChar);
- case SLC_RP: return(&termRprntChar);
- case SLC_LNEXT: return(&termLiteralNextChar);
- case SLC_AYT: return(&termAytChar);
-
- case SLC_SYNCH:
- case SLC_BRK:
- case SLC_EOR:
- default:
- return((cc_t *)0);
- }
-}
-
-void
-TerminalDefaultChars(void)
-{
- memmove(new_tc.c_cc, old_tc.c_cc, sizeof(old_tc.c_cc));
-}
-
-#ifdef notdef
-void
-TerminalRestoreState(void)
-{
-}
-#endif
-
-/*
- * TerminalNewMode - set up terminal to a specific mode.
- * MODE_ECHO: do local terminal echo
- * MODE_FLOW: do local flow control
- * MODE_TRAPSIG: do local mapping to TELNET IAC sequences
- * MODE_EDIT: do local line editing
- *
- * Command mode:
- * MODE_ECHO|MODE_EDIT|MODE_FLOW|MODE_TRAPSIG
- * local echo
- * local editing
- * local xon/xoff
- * local signal mapping
- *
- * Linemode:
- * local/no editing
- * Both Linemode and Single Character mode:
- * local/remote echo
- * local/no xon/xoff
- * local/no signal mapping
- */
-
-
-void
-TerminalNewMode(int f)
-{
- static int prevmode = 0;
- struct termios tmp_tc;
- int onoff;
- int old;
- cc_t esc;
-
- globalmode = f&~MODE_FORCE;
- if (prevmode == f)
- return;
-
- /*
- * Write any outstanding data before switching modes
- * ttyflush() returns 0 only when there is no more data
- * left to write out, it returns -1 if it couldn't do
- * anything at all, otherwise it returns 1 + the number
- * of characters left to write.
-#ifndef USE_TERMIO
- * We would really like to ask the kernel to wait for the output
- * to drain, like we can do with the TCSADRAIN, but we don't have
- * that option. The only ioctl that waits for the output to
- * drain, TIOCSETP, also flushes the input queue, which is NOT
- * what we want (TIOCSETP is like TCSADFLUSH).
-#endif
- */
- old = ttyflush(SYNCHing|flushout);
- if (old < 0 || old > 1) {
- tcgetattr(tin, &tmp_tc);
- do {
- /*
- * Wait for data to drain, then flush again.
- */
- tcsetattr(tin, TCSADRAIN, &tmp_tc);
- old = ttyflush(SYNCHing|flushout);
- } while (old < 0 || old > 1);
- }
-
- old = prevmode;
- prevmode = f&~MODE_FORCE;
- tmp_tc = new_tc;
-
- if (f&MODE_ECHO) {
- tmp_tc.c_lflag |= ECHO;
- tmp_tc.c_oflag |= ONLCR;
- if (crlf)
- tmp_tc.c_iflag |= ICRNL;
- } else {
- tmp_tc.c_lflag &= ~ECHO;
- tmp_tc.c_oflag &= ~ONLCR;
-# ifdef notdef
- if (crlf)
- tmp_tc.c_iflag &= ~ICRNL;
-# endif
- }
-
- if ((f&MODE_FLOW) == 0) {
- tmp_tc.c_iflag &= ~(IXOFF|IXON); /* Leave the IXANY bit alone */
- } else {
- if (restartany < 0) {
- tmp_tc.c_iflag |= IXOFF|IXON; /* Leave the IXANY bit alone */
- } else if (restartany > 0) {
- tmp_tc.c_iflag |= IXOFF|IXON|IXANY;
- } else {
- tmp_tc.c_iflag |= IXOFF|IXON;
- tmp_tc.c_iflag &= ~IXANY;
- }
- }
-
- if ((f&MODE_TRAPSIG) == 0) {
- tmp_tc.c_lflag &= ~ISIG;
- localchars = 0;
- } else {
- tmp_tc.c_lflag |= ISIG;
- localchars = 1;
- }
-
- if (f&MODE_EDIT) {
- tmp_tc.c_lflag |= ICANON;
- } else {
- tmp_tc.c_lflag &= ~ICANON;
- tmp_tc.c_iflag &= ~ICRNL;
- tmp_tc.c_cc[VMIN] = 1;
- tmp_tc.c_cc[VTIME] = 0;
- }
-
- if ((f&(MODE_EDIT|MODE_TRAPSIG)) == 0) {
- tmp_tc.c_lflag &= ~IEXTEN;
- }
-
- if (f&MODE_SOFT_TAB) {
-# ifdef OXTABS
- tmp_tc.c_oflag |= OXTABS;
-# endif
-# ifdef TABDLY
- tmp_tc.c_oflag &= ~TABDLY;
- tmp_tc.c_oflag |= TAB3;
-# endif
- } else {
-# ifdef OXTABS
- tmp_tc.c_oflag &= ~OXTABS;
-# endif
-# ifdef TABDLY
- tmp_tc.c_oflag &= ~TABDLY;
-# endif
- }
-
- if (f&MODE_LIT_ECHO) {
-# ifdef ECHOCTL
- tmp_tc.c_lflag &= ~ECHOCTL;
-# endif
- } else {
-# ifdef ECHOCTL
- tmp_tc.c_lflag |= ECHOCTL;
-# endif
- }
-
- if (f == -1) {
- onoff = 0;
- } else {
- if (f & MODE_INBIN)
- tmp_tc.c_iflag &= ~ISTRIP;
- else
- tmp_tc.c_iflag |= ISTRIP;
- if (f & MODE_OUTBIN) {
- tmp_tc.c_cflag &= ~(CSIZE|PARENB);
- tmp_tc.c_cflag |= CS8;
- tmp_tc.c_oflag &= ~OPOST;
- } else {
- tmp_tc.c_cflag &= ~(CSIZE|PARENB);
- tmp_tc.c_cflag |= old_tc.c_cflag & (CSIZE|PARENB);
- tmp_tc.c_oflag |= OPOST;
- }
- onoff = 1;
- }
-
- if (f != -1) {
- (void) signal(SIGTSTP, susp);
- (void) signal(SIGINFO, ayt);
-#if defined(USE_TERMIO) && defined(NOKERNINFO)
- tmp_tc.c_lflag |= NOKERNINFO;
-#endif
- /*
- * We don't want to process ^Y here. It's just another
- * character that we'll pass on to the back end. It has
- * to process it because it will be processed when the
- * user attempts to read it, not when we send it.
- */
-# ifdef VDSUSP
- tmp_tc.c_cc[VDSUSP] = (cc_t)(_POSIX_VDISABLE);
-# endif
- /*
- * If the VEOL character is already set, then use VEOL2,
- * otherwise use VEOL.
- */
- esc = (rlogin != _POSIX_VDISABLE) ? rlogin : escape;
- if ((tmp_tc.c_cc[VEOL] != esc)
-# ifdef VEOL2
- && (tmp_tc.c_cc[VEOL2] != esc)
-# endif
- ) {
- if (tmp_tc.c_cc[VEOL] == (cc_t)(_POSIX_VDISABLE))
- tmp_tc.c_cc[VEOL] = esc;
-# ifdef VEOL2
- else if (tmp_tc.c_cc[VEOL2] == (cc_t)(_POSIX_VDISABLE))
- tmp_tc.c_cc[VEOL2] = esc;
-# endif
- }
- } else {
- (void) signal(SIGINFO, (void (*)(int)) ayt_status);
- (void) signal(SIGTSTP, SIG_DFL);
- (void) sigsetmask(sigblock(0) & ~(1<<(SIGTSTP-1)));
- tmp_tc = old_tc;
- }
- if (tcsetattr(tin, TCSADRAIN, &tmp_tc) < 0)
- tcsetattr(tin, TCSANOW, &tmp_tc);
-
- ioctl(tin, FIONBIO, (char *)&onoff);
- ioctl(tout, FIONBIO, (char *)&onoff);
-#if defined(TN3270)
- if (noasynchtty == 0) {
- ioctl(tin, FIOASYNC, (char *)&onoff);
- }
-#endif /* defined(TN3270) */
-
-}
-
-void
-TerminalSpeeds(long *ispeed, long *ospeed)
-{
- long in, out;
-
- out = cfgetospeed(&old_tc);
- in = cfgetispeed(&old_tc);
- if (in == 0)
- in = out;
-
- *ispeed = in;
- *ospeed = out;
-}
-
-int
-TerminalWindowSize(long *rows, long *cols)
-{
- struct winsize ws;
-
- if (ioctl(fileno(stdin), TIOCGWINSZ, (char *)&ws) >= 0) {
- *rows = ws.ws_row;
- *cols = ws.ws_col;
- return 1;
- }
- return 0;
-}
-
-int
-NetClose(int fd)
-{
- return close(fd);
-}
-
-
-void
-NetNonblockingIO(int fd, int onoff)
-{
- ioctl(fd, FIONBIO, (char *)&onoff);
-}
-
-#ifdef TN3270
-void
-NetSigIO(int fd, int onoff)
-{
- ioctl(fd, FIOASYNC, (char *)&onoff); /* hear about input */
-}
-
-void
-NetSetPgrp(int fd)
-{
- int myPid;
-
- myPid = getpid();
- fcntl(fd, F_SETOWN, myPid);
-}
-#endif /*defined(TN3270)*/
-
-/*
- * Various signal handling routines.
- */
-
-/* ARGSUSED */
-SIG_FUNC_RET
-intr(int sig)
-{
- if (localchars) {
- intp();
- return;
- }
- setcommandmode();
- longjmp(toplevel, -1);
-}
-
-/* ARGSUSED */
-SIG_FUNC_RET
-intr2(int sig)
-{
- if (localchars) {
-#ifdef KLUDGELINEMODE
- if (kludgelinemode)
- sendbrk();
- else
-#endif
- sendabort();
- return;
- }
-}
-
-/* ARGSUSED */
-SIG_FUNC_RET
-susp(int sig)
-{
- if ((rlogin != _POSIX_VDISABLE) && rlogin_susp())
- return;
- if (localchars)
- sendsusp();
-}
-
-/* ARGSUSED */
-SIG_FUNC_RET
-sendwin(int sig)
-{
- if (connected) {
- sendnaws();
- }
-}
-
-/* ARGSUSED */
-SIG_FUNC_RET
-ayt(int sig)
-{
- if (connected)
- sendayt();
- else
- ayt_status();
-}
-
-
-void
-sys_telnet_init(void)
-{
- (void) signal(SIGINT, intr);
- (void) signal(SIGQUIT, intr2);
- (void) signal(SIGPIPE, SIG_IGN);
- (void) signal(SIGWINCH, sendwin);
- (void) signal(SIGTSTP, susp);
- (void) signal(SIGINFO, ayt);
-
- setconnmode(0);
-
- NetNonblockingIO(net, 1);
-
-#ifdef TN3270
- if (noasynchnet == 0) { /* DBX can't handle! */
- NetSigIO(net, 1);
- NetSetPgrp(net);
- }
-#endif /* defined(TN3270) */
-
- if (SetSockOpt(net, SOL_SOCKET, SO_OOBINLINE, 1) == -1) {
- perror("SetSockOpt");
- }
-}
-
-/*
- * Process rings -
- *
- * This routine tries to fill up/empty our various rings.
- *
- * The parameter specifies whether this is a poll operation,
- * or a block-until-something-happens operation.
- *
- * The return value is 1 if something happened, 0 if not, < 0 if an
- * error occurred.
- */
-
-int
-process_rings(int netin, int netout, int netex, int ttyin, int ttyout,
- int dopoll) /* If 0, then block until something to do */
-{
- struct pollfd set[3];
- int c;
- /* One wants to be a bit careful about setting returnValue
- * to one, since a one implies we did some useful work,
- * and therefore probably won't be called to block next
- * time (TN3270 mode only).
- */
- int returnValue = 0;
-
- set[0].fd = net;
- set[0].events = (netout ? POLLOUT : 0) | (netin ? POLLIN : 0) |
- (netex ? POLLPRI : 0);
- set[1].fd = tout;
- set[1].events = ttyout ? POLLOUT : 0;
- set[2].fd = tin;
- set[2].events = ttyin ? POLLIN : 0;
-
- if ((c = poll(set, 3, dopoll ? 0 : INFTIM)) < 0) {
- if (c == -1) {
- /*
- * we can get EINTR if we are in line mode,
- * and the user does an escape (TSTP), or
- * some other signal generator.
- */
- if (errno == EINTR) {
- return 0;
- }
-#ifdef TN3270
- /*
- * we can get EBADF if we were in transparent
- * mode, and the transcom process died.
- */
- if (errno == EBADF)
- return 0;
-#endif /* defined(TN3270) */
- /* I don't like this, does it ever happen? */
- printf("sleep(5) from telnet, after poll\r\n");
- sleep(5);
- }
- return 0;
- }
-
- /*
- * Any urgent data?
- */
- if (set[0].revents & POLLPRI) {
- SYNCHing = 1;
- (void) ttyflush(1); /* flush already enqueued data */
- }
-
- /*
- * Something to read from the network...
- */
- if (set[0].revents & POLLIN) {
- int canread;
-
- canread = ring_empty_consecutive(&netiring);
- c = recv(net, (char *)netiring.supply, canread, 0);
- if (c < 0 && errno == EWOULDBLOCK) {
- c = 0;
- } else if (c <= 0) {
- return -1;
- }
- if (netdata) {
- Dump('<', netiring.supply, c);
- }
- if (c)
- ring_supplied(&netiring, c);
- returnValue = 1;
- }
-
- /*
- * Something to read from the tty...
- */
- if (set[2].revents & POLLIN) {
- c = TerminalRead(ttyiring.supply, ring_empty_consecutive(&ttyiring));
- if (c < 0 && errno == EIO)
- c = 0;
- if (c < 0 && errno == EWOULDBLOCK) {
- c = 0;
- } else {
- if (c < 0) {
- return -1;
- }
- if (c == 0) {
- /* must be an EOF... */
- if (MODE_LOCAL_CHARS(globalmode) && isatty(tin)) {
- *ttyiring.supply = termEofChar;
- c = 1;
- } else {
- clienteof = 1;
- shutdown(net, 1);
- return 0;
- }
- }
- if (termdata) {
- Dump('<', ttyiring.supply, c);
- }
- ring_supplied(&ttyiring, c);
- }
- returnValue = 1; /* did something useful */
- }
-
- if (set[0].revents & POLLOUT) {
- returnValue |= netflush();
- }
-
- if (set[1].revents & (POLLHUP|POLLNVAL))
- return(-1);
-
- if (set[1].revents & POLLOUT) {
- returnValue |= (ttyflush(SYNCHing|flushout) > 0);
- }
-
- return returnValue;
-}
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