diff options
Diffstat (limited to 'usr.bin/tip/libacu/biz31.c')
| -rw-r--r-- | usr.bin/tip/libacu/biz31.c | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/usr.bin/tip/libacu/biz31.c b/usr.bin/tip/libacu/biz31.c new file mode 100644 index 0000000..5bc00ae --- /dev/null +++ b/usr.bin/tip/libacu/biz31.c @@ -0,0 +1,254 @@ +/* $OpenBSD: biz31.c,v 1.10 2006/03/17 19:17:13 moritz Exp $ */ +/* $NetBSD: biz31.c,v 1.5 1997/02/11 09:24:14 mrg Exp $ */ + +/* + * Copyright (c) 1983, 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> +__FBSDID("$FreeBSD$"); + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)biz31.c 8.1 (Berkeley) 6/6/93"; +static char rcsid[] = "$OpenBSD: biz31.c,v 1.10 2006/03/17 19:17:13 moritz Exp $"; +#endif +#endif /* not lint */ + +#include "tip.h" + +#define MAXRETRY 3 /* sync up retry count */ +#define DISCONNECT_CMD "\21\25\11\24" /* disconnection string */ + +static int biz_dialer(char *, char *); +static int bizsync(int); +static int echo(char *); +static void sigALRM(int); +static int detect(char *); +static int flush(char *); +static int bizsync(int); + +static int timeout = 0; +static jmp_buf timeoutbuf; + +/* + * Dial up on a BIZCOMP Model 1031 with either + * tone dialing (mod = "f") + * pulse dialing (mod = "w") + */ +static int +biz_dialer(char *num, char *mod) +{ + int connected = 0; + + if (!bizsync(FD)) { + logent(value(HOST), "", "biz", "out of sync"); + printf("bizcomp out of sync\n"); + delock(uucplock); + exit(0); + } + if (boolean(value(VERBOSE))) + printf("\nstarting call..."); + echo("#\rk$\r$\n"); /* disable auto-answer */ + echo("$>$.$ #\r"); /* tone/pulse dialing */ + echo(mod); + echo("$\r$\n"); + echo("$>$.$ #\re$ "); /* disconnection sequence */ + echo(DISCONNECT_CMD); + echo("\r$\n$\r$\n"); + echo("$>$.$ #\rr$ "); /* repeat dial */ + echo(num); + echo("\r$\n"); + if (boolean(value(VERBOSE))) + printf("ringing..."); + /* + * The reply from the BIZCOMP should be: + * `^G NO CONNECTION\r\n^G\r\n' failure + * ` CONNECTION\r\n^G' success + */ + connected = detect(" "); +#ifdef ACULOG + if (timeout) { + char line[80]; + + (void)snprintf(line, sizeof line, "%ld second dial timeout", + number(value(DIALTIMEOUT))); + logent(value(HOST), num, "biz", line); + } +#endif + if (!connected) + flush(" NO CONNECTION\r\n\07\r\n"); + else + flush("CONNECTION\r\n\07"); + if (timeout) + biz31_disconnect(); /* insurance */ + return (connected); +} + +int +biz31w_dialer(char *num, char *acu) +{ + return (biz_dialer(num, "w")); +} + +int +biz31f_dialer(char *num, char *acu) +{ + return (biz_dialer(num, "f")); +} + +void +biz31_disconnect(void) +{ + write(FD, DISCONNECT_CMD, sizeof(DISCONNECT_CMD)-1); + sleep(2); + tcflush(FD, TCIOFLUSH); +} + +void +biz31_abort(void) +{ + write(FD, "\33", 1); +} + +static int +echo(char *s) +{ + char c; + + while (c = *s++) switch (c) { + + case '$': + read(FD, &c, 1); + s++; + break; + + case '#': + c = *s++; + write(FD, &c, 1); + break; + + default: + write(FD, &c, 1); + read(FD, &c, 1); + } +} + +/*ARGSUSED*/ +static void +sigALRM(int signo) +{ + timeout = 1; + longjmp(timeoutbuf, 1); +} + +static int +detect(char *s) +{ + sig_t f; + char c; + + f = signal(SIGALRM, sigALRM); + timeout = 0; + while (*s) { + if (setjmp(timeoutbuf)) { + printf("\07timeout waiting for reply\n"); + biz31_abort(); + break; + } + alarm(number(value(DIALTIMEOUT))); + read(FD, &c, 1); + alarm(0); + if (c != *s++) + break; + } + signal(SIGALRM, f); + return (timeout == 0); +} + +static int +flush(char *s) +{ + sig_t f; + char c; + + f = signal(SIGALRM, sigALRM); + while (*s++) { + if (setjmp(timeoutbuf)) + break; + alarm(10); + read(FD, &c, 1); + alarm(0); + } + signal(SIGALRM, f); + timeout = 0; /* guard against disconnection */ +} + +/* + * This convoluted piece of code attempts to get + * the bizcomp in sync. If you don't have the capacity or nread + * call there are gory ways to simulate this. + */ +static int +bizsync(int fd) +{ +#ifdef FIOCAPACITY + struct capacity b; +# define chars(b) ((b).cp_nbytes) +# define IOCTL FIOCAPACITY +#endif +#ifdef FIONREAD + long b; +# define chars(b) (b) +# define IOCTL FIONREAD +#endif + int already = 0; + char buf[10]; + +retry: + if (ioctl(fd, IOCTL, (caddr_t)&b) >= 0 && chars(b) > 0) + tcflush(FD, TCIOFLUSH); + write(fd, "\rp>\r", 4); + sleep(1); + if (ioctl(fd, IOCTL, (caddr_t)&b) >= 0) { + if (chars(b) != 10) { + nono: + if (already > MAXRETRY) + return (0); + write(fd, DISCONNECT_CMD, 4); + sleep(2); + already++; + goto retry; + } else { + read(fd, buf, 10); + if (strncmp(buf, "p >\r\n\r\n>", 8)) + goto nono; + } + } + return (1); +} |
