diff options
Diffstat (limited to 'usr.bin/tip/aculib/dn11.c')
-rw-r--r-- | usr.bin/tip/aculib/dn11.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/usr.bin/tip/aculib/dn11.c b/usr.bin/tip/aculib/dn11.c new file mode 100644 index 0000000..152b376 --- /dev/null +++ b/usr.bin/tip/aculib/dn11.c @@ -0,0 +1,142 @@ +/* + * 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. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. 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. + */ + +#ifndef lint +static char sccsid[] = "@(#)dn11.c 8.1 (Berkeley) 6/6/93"; +#endif /* not lint */ + +/* + * Routines for dialing up on DN-11 + */ +#include "tip.h" + +int dn_abort(); +void alarmtr(); +static jmp_buf jmpbuf; +static int child = -1, dn; + +dn_dialer(num, acu) + char *num, *acu; +{ + extern errno; + char *p, *q, phone[40]; + int lt, nw, connected = 1; + register int timelim; + + if (boolean(value(VERBOSE))) + printf("\nstarting call..."); + if ((dn = open(acu, 1)) < 0) { + if (errno == EBUSY) + printf("line busy..."); + else + printf("acu open error..."); + return (0); + } + if (setjmp(jmpbuf)) { + kill(child, SIGKILL); + close(dn); + return (0); + } + signal(SIGALRM, alarmtr); + timelim = 5 * strlen(num); + alarm(timelim < 30 ? 30 : timelim); + if ((child = fork()) == 0) { + /* + * ignore this stuff for aborts + */ + signal(SIGALRM, SIG_IGN); + signal(SIGINT, SIG_IGN); + signal(SIGQUIT, SIG_IGN); + sleep(2); + nw = write(dn, num, lt = strlen(num)); + exit(nw != lt); + } + /* + * open line - will return on carrier + */ + if ((FD = open(DV, 2)) < 0) { + if (errno == EIO) + printf("lost carrier..."); + else + printf("dialup line open failed..."); + alarm(0); + kill(child, SIGKILL); + close(dn); + return (0); + } + alarm(0); + ioctl(dn, TIOCHPCL, 0); + signal(SIGALRM, SIG_DFL); + while ((nw = wait(<)) != child && nw != -1) + ; + fflush(stdout); + close(dn); + if (lt != 0) { + close(FD); + return (0); + } + return (1); +} + +void +alarmtr() +{ + alarm(0); + longjmp(jmpbuf, 1); +} + +/* + * Insurance, for some reason we don't seem to be + * hanging up... + */ +dn_disconnect() +{ + + sleep(2); + if (FD > 0) + ioctl(FD, TIOCCDTR, 0); + close(FD); +} + +dn_abort() +{ + + sleep(2); + if (child > 0) + kill(child, SIGKILL); + if (dn > 0) + close(dn); + if (FD > 0) + ioctl(FD, TIOCCDTR, 0); + close(FD); +} |