.\" -*- nroff -*-
.\" manual page [] for chat 1.8
-.\" $Id: chat.8,v 1.3 1995/12/18 03:32:45 paulus Exp $
+.\" $Id: chat.8,v 1.4 1996/06/26 00:51:05 paulus Exp $
.\" SH section heading
.\" SS subsection heading
.\" LP paragraph
option is not used and you still use \fIREPORT\fR keywords, the
\fIstderr\fR file is used for the report strings.
.TP
+.B -e
+Start with the echo option turned on. Echoing may also be turned on
+or off at specific points in the chat script by using the \fIECHO\fR
+keyword. When echoing is enabled, all output from the modem is echoed
+to \fIstderr\fR.
+.TP
.B -v
Request that the \fIchat\fR script be executed in a verbose mode. The
\fIchat\fR program will then log all text received from the modem and
of the script is executed. In addition the program will write to the
expect-file the string "CONNECT" plus any characters which follow it
such as the connection rate.
+.SH ECHO
+The echo options controls whether the output from the modem is echoed
+to \fIstderr\fR. This option may be set with the \fI-e\fR option, but
+it can also be controlled by the \fIECHO\fR keyword. The "expect-send"
+pair \fIECHO\fR \fION\fR enables echoing, and \fIECHO\fR \fIOFF\fR
+disables it. With this keyword you can select which parts of the
+conversation should be visible. For instance, with the following
+script:
+.IP
+ABORT 'BUSY'
+.br
+ABORT 'NO CARIER'
+.br
+'' ATZ
+.br
+OK\\r\\n ATD1234567
+.br
+\\r\\n \\c
+.br
+ECHO ON
+.br
+CONNECT \\c
+.br
+ogin: account
+.LP
+all output resulting from modem configuration and dialing is not visible,
+but starting with the \fICONNECT\fR (or \fIBUSY\fR) message, everything
+will be echoed.
.SH TIMEOUT
The initial timeout value is 45 seconds. This may be changed using the \fB-t\fR
parameter.
* Added -r "report file" switch & REPORT keyword.
* Robert Geer <bgeer@xmission.com>
*
+ * Added -e "echo" switch & ECHO keyword
+ * Dick Streefland <dicks@tasking.nl>
+ *
* The original author is:
*
* Karl Fox <karl@MorningStar.Com>
*
*/
-static char rcsid[] = "$Id: chat.c,v 1.11 1996/05/28 00:57:08 paulus Exp $";
+static char rcsid[] = "$Id: chat.c,v 1.12 1996/06/26 00:51:06 paulus Exp $";
#include <stdio.h>
#include <time.h>
#define MAX_REPORTS 50
#define DEFAULT_CHAT_TIMEOUT 45
+int echo = 0;
int verbose = 0;
int Verbose = 0;
int quiet = 0;
char *abort_string[MAX_ABORTS], *fail_reason = (char *)0,
fail_buffer[50];
-int n_aborts = 0, abort_next = 0, timeout_next = 0;
+int n_aborts = 0, abort_next = 0, timeout_next = 0, echo_next = 0;
char *report_string[MAX_REPORTS] ;
char report_buffer[50] ;
void unalarm __P((void));
void init __P((void));
void set_tty_parameters __P((void));
+void echo_stderr __P((int));
void break_sequence __P((void));
void terminate __P((int status));
void do_file __P((char *chat_file));
{
switch (option)
{
+ case 'e':
+ ++echo;
+ break;
+
case 'v':
++verbose;
break;
}
}
}
+/*
+ * Allow the last of the report string to be gathered before we terminate.
+ */
+ while (report_gathering)
+ {
+ int c;
+ c = get_char();
+ if (!iscntrl (c))
+ {
+ int rep_len = strlen (report_buffer);
+ report_buffer[rep_len] = c;
+ report_buffer[rep_len + 1] = '\0';
+ }
+ else
+ {
+ report_gathering = 0;
+ fprintf (report_fp, "chat: %s\n", report_buffer);
+ }
+ }
terminate(0);
}
void usage()
{
fprintf(stderr, "\
-Usage: %s [-v] [-t timeout] [-r report-file] {-f chat-file | chat-script}\n",
+Usage: %s [-e] [-v] [-t timeout] [-r report-file] {-f chat-file | chat-script}\n",
program_name);
exit(1);
}
void terminate(status)
int status;
{
+ echo_stderr(-1);
if (report_file != (char *) 0 && report_fp != (FILE *) NULL)
{
if (verbose)
char *expect_strtok (s, term)
char *s, *term;
{
- static char *str = "";
- static int escape_flag = 0;
+ static char *str = "";
+ int escape_flag = 0;
char *result;
/*
* If a string was specified then do initial processing.
*/
if (s)
{
- str = s;
- escape_flag = 0;
+ str = s;
}
+/*
+ * If this is the escape flag then reset it and ignore the character.
+ */
+ if (*str)
+ {
+ result = str;
+ }
+ else
+ {
+ result = (char *) 0;
+ }
- result = (char *) 0;
while (*str)
{
-/*
- * Look for the terminator sequence.
- * If the escape flag is set then this character is not the terminator.
- * We assume that term does not contain the backslash character.
- */
- if (escape_flag || strchr (term, *str) == (char *) 0)
+ if (escape_flag)
{
- if (result == (char *) 0)
- {
- result = str;
- }
-
- if (escape_flag || *str == '\\')
- {
- escape_flag = !escape_flag;
- }
+ escape_flag = 0;
+ ++str;
+ continue;
+ }
+ if (*str == '\\')
+ {
++str;
+ escape_flag = 1;
continue;
}
/*
- * This is the terminator. If we have a string then this is the end of the
- * scan operation.
+ * If this is not in the termination string, continue.
*/
- *str++ = '\0';
- if (result)
+ if (strchr (term, *str) == (char *) 0)
{
- break;
+ ++str;
+ continue;
}
+/*
+ * This is the terminator. Mark the end of the string and stop.
+ */
+ *str++ = '\0';
+ break;
}
return (result);
}
++timeout_next;
return;
}
+
+ if (strcmp(s, "ECHO") == 0)
+ {
+ ++echo_next;
+ return;
+ }
/*
* Fetch the expect and reply string.
*/
void chat_send (s)
register char *s;
{
+ if (echo_next)
+ {
+ echo_next = 0;
+ echo = (strcmp(s, "ON") == 0);
+ return;
+ }
if (abort_next)
{
char *s1;
return (1);
}
+/*
+ * Echo a character to stderr.
+ * When called with -1, a '\n' character is generated when
+ * the cursor is not at the beginning of a line.
+ */
+void echo_stderr(n)
+int n;
+ {
+ static int need_lf;
+ char *s;
+
+ switch (n)
+ {
+ case '\r': /* ignore '\r' */
+ break;
+ case -1:
+ if (need_lf == 0)
+ break;
+ /* fall through */
+ case '\n':
+ write(2, "\n", 1);
+ need_lf = 0;
+ break;
+ default:
+ s = character(n);
+ write(2, s, strlen(s));
+ need_lf = 1;
+ break;
+ }
+ }
+
/*
* 'Wait for' this string to appear on this file descriptor.
*/
{
int n, abort_len, report_len;
+ if (echo)
+ {
+ echo_stderr(c);
+ }
if (verbose)
{
if (c == '\n')
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