int
getty_chat(char *scrstr, int timeout, int debug)
{
int r = -1;
chat_alarm = timeout ? timeout : CHAT_DEFAULT_TIMEOUT;
chat_debug = debug;
if (scrstr != NULL) {
char **script;
if (chat_debug & CHATDEBUG_MISC)
syslog(LOG_DEBUG, "getty_chat script='%s'", scrstr);
if ((script = read_chat(&scrstr)) != NULL) {
int i = r = 0;
int off = 0;
sig_t old_alarm;
/*
* We need to be in raw mode for all this
* Rely on caller...
*/
old_alarm = signal(SIGALRM, chat_alrm);
chat_unalarm(); /* Force blocking mode at start */
/*
* This is the send/expect loop
*/
while (r == 0 && script[i] != NULL)
if ((r = chat_expect(script[i++])) == 0 && script[i] != NULL)
r = chat_send(script[i++]);
signal(SIGALRM, old_alarm);
free(script);
free(scrstr);
/*
* Ensure stdin is in blocking mode
*/
ioctl(STDIN_FILENO, FIONBIO, &off);
}
if (chat_debug & CHATDEBUG_MISC)
syslog(LOG_DEBUG, "getty_chat %s", result(r));
}
return r;
}
int chatmain(int fd, int mode, char *pScript)
{
char arg[80];
char *script;
/* initialize exit code */
exit_code = 0;
ttyfd = fd;
script=pScript;
if ( debug ) {
dbglog("chat_main: %s\n", script);
}
/* get first expect string */
script = getnextcommand(script,arg);
while (( script != NULL ) && ( exit_code == 0 )) {
/* process the expect string */
chat_expect(arg);
if ( exit_code == 0 ) {
/* get the next send string */
script = getnextcommand(script,arg);
if ( script != NULL ) {
/* process the send string */
chat_send(arg);
/* get the next expect string */
script = getnextcommand(script,arg);
}
}
}
ttyfd = (int)-1;
return ( exit_code );
}
void
do_file(char *chatfile)
{
int linect, sendflg;
char *sp, *arg, quote;
char buf [STR_LEN];
FILE *cfp;
cfp = fopen (chatfile, "r");
if (cfp == NULL)
fatal(1, "%s -- open failed: %m", chatfile);
linect = 0;
sendflg = 0;
while (fgets(buf, STR_LEN, cfp) != NULL) {
sp = strchr (buf, '\n');
if (sp)
*sp = '\0';
linect++;
sp = buf;
/* lines starting with '#' are comments. If a real '#'
is to be expected, it should be quoted .... */
if ( *sp == '#' )
continue;
while (*sp != '\0') {
if (*sp == ' ' || *sp == '\t') {
++sp;
continue;
}
if (*sp == '"' || *sp == '\'') {
quote = *sp++;
arg = sp;
while (*sp != quote) {
if (*sp == '\0')
fatal(1, "unterminated quote (line %d)", linect);
if (*sp++ == '\\') {
if (*sp != '\0')
++sp;
}
}
}
else {
arg = sp;
while (*sp != '\0' && *sp != ' ' && *sp != '\t')
++sp;
}
if (*sp != '\0')
*sp++ = '\0';
if (sendflg)
chat_send (arg);
else
chat_expect (arg);
sendflg = !sendflg;
}
}
fclose (cfp);
}
/*
* chat [-esSvV] [-f chat-file] [-r report-file] [-t timeout]
* [-T phone-number] [-U phone-number2] [chat-script]
* where chat-script has the form:
* [...[[expect[-send[-expect...]] send expect[-send[-expect]] ...]]]
*
* Perform a UUCP-dialer-like chat script on stdin and stdout.
*/
int
main(int argc, char *argv[])
{
int option;
tzset();
while ((option = getopt(argc, argv, "ef:r:sSt:T:U:vV")) != -1) {
switch (option) {
case 'e':
++echo;
break;
case 'f':
if (chat_file != NULL)
free(chat_file);
chat_file = copy_of(optarg);
break;
case 'r':
if (report_fp != NULL)
fclose(report_fp);
if (report_file != NULL)
free(report_file);
report_file = copy_of(optarg);
report_fp = fopen(report_file, "a");
if (report_fp != NULL) {
if (verbose)
fprintf(report_fp, "Opening \"%s\"...\n", report_file);
} else
fatal(2, "cannot open \"%s\" for appending", report_file);
break;
case 's':
++to_stderr;
break;
case 'S':
to_log = 0;
break;
case 't':
timeout = atoi(optarg);
break;
case 'T':
if (phone_num != NULL)
free(phone_num);
phone_num = copy_of(optarg);
break;
case 'U':
if (phone_num2 != NULL)
free(phone_num2);
phone_num2 = copy_of(optarg);
break;
case 'v':
++verbose;
break;
case 'V':
++Verbose;
break;
default:
usage();
break;
}
}
argc -= optind;
argv += optind;
/*
* Default the report file to the stderr location
*/
if (report_fp == NULL)
report_fp = stderr;
if (to_log) {
openlog("chat", LOG_PID | LOG_NDELAY, LOG_LOCAL2);
if (verbose)
setlogmask(LOG_UPTO(LOG_INFO));
else
setlogmask(LOG_UPTO(LOG_WARNING));
}
if (chat_file != NULL) {
if (*argv != NULL)
usage();
else {
init();
do_file(chat_file);
}
} else {
init();
while (*argv != NULL && argc > 0) {
chat_expect(*argv);
argv++;
argc--;
if (*argv != NULL && argc > 0) {
chat_send(*argv);
argv++;
argc--;
}
}
}
terminate(0);
return 0;
}
static int chat_line_run(FAR struct chat* priv,
FAR const struct chat_line* line)
{
int ret = 0;
int numarg;
vdbg("type %d, rhs %s\n", line->type, line->rhs);
switch (line->type)
{
case CHAT_LINE_TYPE_COMMAND:
if (priv->ctl.verbose)
{
fprintf(stderr, "chat: cmd %d, arg %s\n",
line->lhs.command, line->rhs);
}
switch (line->lhs.command)
{
case CHAT_COMMAND_ABORT:
/* TODO */
break;
case CHAT_COMMAND_ECHO:
if (strcmp(line->rhs, "ON"))
{
priv->ctl.echo = true;
}
else
{
priv->ctl.echo = false;
}
break;
case CHAT_COMMAND_PAUSE:
numarg = atoi(line->rhs);
if (numarg < 0)
{
numarg = 0;
}
sleep(numarg);
break;
case CHAT_COMMAND_SAY:
fprintf(stderr, "%s\n", line->rhs);
break;
case CHAT_COMMAND_TIMEOUT:
numarg = atoi(line->rhs);
if (numarg < 0)
{
vdbg("invalid timeout string %s\n", line->rhs);
}
else
{
vdbg("timeout is %d s\n", numarg);
priv->ctl.timeout = numarg;
}
break;
default:
break;
}
break;
case CHAT_LINE_TYPE_EXPECT_SEND:
if (priv->ctl.verbose)
{
fprintf(stderr, "chat: %s %s\n", line->lhs.expect, line->rhs);
}
ret = chat_expect(priv, line->lhs.expect);
if (!ret)
{
/* Discard anything after the confirmed expectation */
chat_flush(priv);
ret = chat_send(priv, line->rhs);
}
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
