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biz22.c
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biz31.c
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courier.c
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df.c
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dn11.c
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hayes.c
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t3000.c
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v3451.c
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v831.c
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ventel.c
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Editing: courier.c
/* $OpenBSD: courier.c,v 1.15 2006/03/17 19:17:13 moritz Exp $ */ /* $NetBSD: courier.c,v 1.7 1997/02/11 09:24:16 mrg Exp $ */ /*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 1986, 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[] = "@(#)courier.c 8.1 (Berkeley) 6/6/93"; static const char rcsid[] = "$OpenBSD: courier.c,v 1.15 2006/03/17 19:17:13 moritz Exp $"; #endif #endif /* not lint */ /* * Routines for calling up on a Courier modem. * Derived from Hayes driver. */ #include "tip.h" #include <sys/ioctl.h> #include <stdio.h> #define MAXRETRY 5 static int dialtimeout = 0; static int connected = 0; static jmp_buf timeoutbuf; static void sigALRM(int); static int cour_swallow(char *); static int cour_connect(void); static int coursync(void); static void cour_write(int, char *, int); static void cour_nap(void); #ifdef DEBUG static void cour_verbose_read(void); #endif int cour_dialer(char *num, char *acu) { char *cp; #ifdef ACULOG char line[80]; #endif struct termios cntrl; if (boolean(value(VERBOSE))) printf("Using \"%s\"\n", acu); tcgetattr(FD, &cntrl); cntrl.c_cflag |= HUPCL; tcsetattr(FD, TCSAFLUSH, &cntrl); /* * Get in synch. */ if (!coursync()) { badsynch: printf("can't synchronize with courier\n"); #ifdef ACULOG logent(value(HOST), num, "courier", "can't synch up"); #endif return (0); } cour_write(FD, "AT E0\r", 6); /* turn off echoing */ sleep(1); #ifdef DEBUG if (boolean(value(VERBOSE))) cour_verbose_read(); #endif tcflush(FD, TCIOFLUSH); cour_write(FD, "AT C1 E0 H0 Q0 X6 V1\r", 21); if (!cour_swallow("\r\nOK\r\n")) goto badsynch; fflush(stdout); cour_write(FD, "AT D", 4); for (cp = num; *cp; cp++) if (*cp == '=') *cp = ','; cour_write(FD, num, strlen(num)); cour_write(FD, "\r", 1); connected = cour_connect(); #ifdef ACULOG if (dialtimeout) { (void)snprintf(line, sizeof line, "%ld second dial timeout", number(value(DIALTIMEOUT))); logent(value(HOST), num, "cour", line); } #endif if (dialtimeout) cour_disconnect(); return (connected); } void cour_disconnect(void) { /* first hang up the modem*/ ioctl(FD, TIOCCDTR, 0); sleep(1); ioctl(FD, TIOCSDTR, 0); coursync(); /* reset */ close(FD); } void cour_abort(void) { cour_write(FD, "\r", 1); /* send anything to abort the call */ cour_disconnect(); } /*ARGSUSED*/ static void sigALRM(int signo) { printf("\07timeout waiting for reply\n"); dialtimeout = 1; longjmp(timeoutbuf, 1); } static int cour_swallow(char *match) { sig_t f; char c; f = signal(SIGALRM, sigALRM); dialtimeout = 0; do { if (*match =='\0') { signal(SIGALRM, f); return (1); } if (setjmp(timeoutbuf)) { signal(SIGALRM, f); return (0); } alarm(number(value(DIALTIMEOUT))); read(FD, &c, 1); alarm(0); c &= 0177; #ifdef DEBUG if (boolean(value(VERBOSE))) putchar(c); #endif } while (c == *match++); #ifdef DEBUG if (boolean(value(VERBOSE))) fflush(stdout); #endif signal(SIGALRM, SIG_DFL); return (0); } struct baud_msg { char *msg; int baud; } baud_msg[] = { { "", B300 }, { " 1200", B1200 }, { " 2400", B2400 }, { " 9600", B9600 }, { " 9600/ARQ", B9600 }, { 0, 0 }, }; static int cour_connect(void) { char c; int nc, nl, n; char dialer_buf[64]; struct baud_msg *bm; sig_t f; if (cour_swallow("\r\n") == 0) return (0); f = signal(SIGALRM, sigALRM); again: nc = 0; nl = sizeof(dialer_buf)-1; bzero(dialer_buf, sizeof(dialer_buf)); dialtimeout = 0; for (nc = 0, nl = sizeof(dialer_buf)-1 ; nl > 0 ; nc++, nl--) { if (setjmp(timeoutbuf)) break; alarm(number(value(DIALTIMEOUT))); n = read(FD, &c, 1); alarm(0); if (n <= 0) break; c &= 0x7f; if (c == '\r') { if (cour_swallow("\n") == 0) break; if (!dialer_buf[0]) goto again; if (strcmp(dialer_buf, "RINGING") == 0 && boolean(value(VERBOSE))) { #ifdef DEBUG printf("%s\r\n", dialer_buf); #endif goto again; } if (strncmp(dialer_buf, "CONNECT", sizeof("CONNECT")-1) != 0) break; for (bm = baud_msg ; bm->msg ; bm++) if (strcmp(bm->msg, dialer_buf+sizeof("CONNECT")-1) == 0) { struct termios cntrl; tcgetattr(FD, &cntrl); cfsetospeed(&cntrl, bm->baud); cfsetispeed(&cntrl, bm->baud); tcsetattr(FD, TCSAFLUSH, &cntrl); signal(SIGALRM, f); #ifdef DEBUG if (boolean(value(VERBOSE))) printf("%s\r\n", dialer_buf); #endif return (1); } break; } dialer_buf[nc] = c; #ifdef notdef if (boolean(value(VERBOSE))) putchar(c); #endif } printf("%s\r\n", dialer_buf); signal(SIGALRM, f); return (0); } /* * This convoluted piece of code attempts to get * the courier in sync. */ static int coursync(void) { int already = 0; int len; char buf[40]; while (already++ < MAXRETRY) { tcflush(FD, TCIOFLUSH); cour_write(FD, "\rAT Z\r", 6); /* reset modem */ bzero(buf, sizeof(buf)); sleep(1); ioctl(FD, FIONREAD, &len); if (len) { len = read(FD, buf, sizeof(buf)); #ifdef DEBUG buf[len] = '\0'; printf("coursync: (\"%s\")\n\r", buf); #endif if (strchr(buf, '0') || (strchr(buf, 'O') && strchr(buf, 'K'))) return(1); } /* * If not strapped for DTR control, * try to get command mode. */ sleep(1); cour_write(FD, "+++", 3); sleep(1); /* * Toggle DTR to force anyone off that might have left * the modem connected. */ ioctl(FD, TIOCCDTR, 0); sleep(1); ioctl(FD, TIOCSDTR, 0); } cour_write(FD, "\rAT Z\r", 6); return (0); } static void cour_write(int fd, char *cp, int n) { #ifdef notdef if (boolean(value(VERBOSE))) write(1, cp, n); #endif tcdrain(fd); cour_nap(); for ( ; n-- ; cp++) { write(fd, cp, 1); tcdrain(fd); cour_nap(); } } #ifdef DEBUG static void cour_verbose_read(void) { int n = 0; char buf[BUFSIZ]; if (ioctl(FD, FIONREAD, &n) < 0) return; if (n <= 0) return; if (read(FD, buf, n) != n) return; write(1, buf, n); } #endif /* Give the courier 50 milliseconds between characters */ static void cour_nap(void) { struct timespec ts; ts.tv_sec = 0; ts.tv_nsec = 50 * 1000000; nanosleep(&ts, NULL); }
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