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33 * @(#)courier.c 8.1 (Berkeley) 6/6/93
34 * $DragonFly: src/usr.bin/tip/libacu/courier.c,v 1.3 2005/05/07 23:20:43 corecode Exp $
38 * Routines for calling up on a Courier modem.
39 * Derived from Hayes driver.
43 #include "acucommon.h"
48 static void sigALRM();
49 static int cour_connect(void);
50 static int cour_swallow(char *);
51 static int timeout = 0;
52 static int connected = 0;
53 static jmp_buf timeoutbuf, intbuf;
54 static int coursync();
65 if (boolean(value(VERBOSE)))
66 printf("Using \"%s\"\n", acu);
75 printf("can't synchronize with courier\n");
77 logent(value(HOST), num, "courier", "can't synch up");
81 cour_write(FD, "AT E0\r", 6); /* turn off echoing */
84 if (boolean(value(VERBOSE)))
87 ioctl(FD, TIOCFLUSH, 0); /* flush any clutter */
88 cour_write(FD, "AT C1 E0 H0 Q0 X6 V1\r", 21);
89 if (!cour_swallow("\r\nOK\r\n"))
92 cour_write(FD, "AT D", 4);
93 for (cp = num; *cp; cp++)
96 cour_write(FD, num, strlen(num));
97 cour_write(FD, "\r", 1);
98 connected = cour_connect();
101 sprintf(line, "%d second dial timeout",
102 number(value(DIALTIMEOUT)));
103 logent(value(HOST), num, "cour", line);
113 /* first hang up the modem*/
114 ioctl(FD, TIOCCDTR, 0);
116 ioctl(FD, TIOCSDTR, 0);
117 coursync(); /* reset */
123 cour_write(FD, "\r", 1); /* send anything to abort the call */
130 printf("\07timeout waiting for reply\n");
132 longjmp(timeoutbuf, 1);
137 register char *match;
142 f = signal(SIGALRM, sigALRM);
149 if (setjmp(timeoutbuf)) {
153 alarm(number(value(DIALTIMEOUT)));
158 if (boolean(value(VERBOSE)))
161 } while (c == *match++);
163 if (boolean(value(VERBOSE)))
166 signal(SIGALRM, SIG_DFL);
191 if (cour_swallow("\r\n") == 0)
193 f = signal(SIGALRM, sigALRM);
195 nc = 0; nl = sizeof(dialer_buf)-1;
196 bzero(dialer_buf, sizeof(dialer_buf));
198 for (nc = 0, nl = sizeof(dialer_buf)-1 ; nl > 0 ; nc++, nl--) {
199 if (setjmp(timeoutbuf))
201 alarm(number(value(DIALTIMEOUT)));
208 if (cour_swallow("\n") == 0)
212 if (strcmp(dialer_buf, "RINGING") == 0 &&
213 boolean(value(VERBOSE))) {
215 printf("%s\r\n", dialer_buf);
219 if (strncmp(dialer_buf, "CONNECT",
220 sizeof("CONNECT")-1) != 0)
222 for (bm = baud_msg ; bm->msg ; bm++)
224 dialer_buf+sizeof("CONNECT")-1) == 0) {
225 if (!acu_setspeed(bm->baud))
229 if (boolean(value(VERBOSE)))
230 printf("%s\r\n", dialer_buf);
238 if (boolean(value(VERBOSE)))
243 printf("%s\r\n", dialer_buf);
250 * This convoluted piece of code attempts to get
251 * the courier in sync.
260 while (already++ < MAXRETRY) {
261 ioctl(FD, TIOCFLUSH, 0); /* flush any clutter */
262 cour_write(FD, "\rAT Z\r", 6); /* reset modem */
263 bzero(buf, sizeof(buf));
265 ioctl(FD, FIONREAD, &len);
267 len = read(FD, buf, sizeof(buf));
270 printf("coursync: (\"%s\")\n\r", buf);
272 if (index(buf, '0') ||
273 (index(buf, 'O') && index(buf, 'K')))
277 * If not strapped for DTR control,
278 * try to get command mode.
281 cour_write(FD, "+++", 3);
284 * Toggle DTR to force anyone off that might have left
285 * the modem connected.
287 ioctl(FD, TIOCCDTR, 0);
289 ioctl(FD, TIOCSDTR, 0);
291 cour_write(FD, "\rAT Z\r", 6);
295 cour_write(fd, cp, n)
301 if (boolean(value(VERBOSE)))
306 for ( ; n-- ; cp++) {
319 if (ioctl(FD, FIONREAD, &n) < 0)
323 if (read(FD, buf, n) != n)
334 /* end of courier.c */