--- res_agi.c (revision 207352)
+++ res_agi.c (working copy)
@@ -686,13 +686,21 @@
+
+
+
+
Waits up to timeout milliseconds for channel to
receive a DTMF digit. Returns -1 on channel failure, 0
if no digit is received in the timeout, or the numerical value of the ascii of the digit if
one is received. Use -1 for the timeout value if
- you desire the call to block indefinitely.
+ you desire the call to block indefinitely.
+
+ If 'voicefile' is specified it is played as long 'previously die chars' (default '#') are
+ not typed in or as long as any of 'escape chars' (default '1234567890*#ABCD') is pressed a
+ 'maxdigit' (default 1) times .
@@ -1602,14 +1610,97 @@
static int handle_waitfordigit(struct ast_channel *chan, AGI *agi, int argc, const char * const argv[])
{
- int res, to;
+ int res;
+ int to;
+ char *valid_dtmf_digits = AST_DIGIT_ANY;
+ char *previously_die_on = "#";
+ char *digits = NULL;
+ char *escape_digits = NULL;
+ char *voicefile = NULL;
+ int maxdigits = 1;
- if (argc != 4)
+ if (argc < 4)
return RESULT_SHOWUSAGE;
if (sscanf(argv[3], "%d", &to) != 1)
return RESULT_SHOWUSAGE;
- res = ast_waitfordigit_full(chan, to, agi->audio, agi->ctrl);
- ast_agi_send(agi->fd, chan, "200 result=%d\n", res);
+
+ if (chan->_state != AST_STATE_UP) {
+ /* Answer the chan */
+ res = ast_answer(chan);
+ }
+
+ if (argc >= 5) {
+ // soundfile specified
+
+ if (argc >= 6)
+ {
+ // escape characters defined
+ valid_dtmf_digits = (char *) argv[5];
+ }
+
+ if (argc >= 7) {
+ // maxdigits
+ if (sscanf(argv[6], "%d", &maxdigits) != 1)
+ return RESULT_SHOWUSAGE;
+ }
+
+ if (argc >= 8) {
+ // escape before escape chars on
+ previously_die_on = (char *) argv[7];
+ }
+
+ voicefile = (char *) argv[4];
+ res = ast_streamfile(chan, voicefile, chan->language);
+ if (res < 0)
+ return RESULT_FAILURE;
+
+ // allocate space for the digits (2 chars per digit + \0 - ||...)
+ digits = (char *)ast_malloc(maxdigits * 2 + 1);
+ ast_copy_string(digits, "", 1);
+
+ // catenate the escape digits together with previously die digits
+ escape_digits = (char *)ast_malloc(strlen(valid_dtmf_digits) + strlen(previously_die_on)+ 1);
+ ast_copy_string(escape_digits, valid_dtmf_digits, sizeof(valid_dtmf_digits));
+ strcat(escape_digits, previously_die_on);
+
+ if (chan->stream)
+ {
+ int dtmf_count = 0;
+ do {
+ char buf[3];
+ res = ast_waitstream_full(chan, escape_digits, agi->audio, agi->ctrl);
+
+ if (res > 0) {
+ if (strchr(previously_die_on, res) != NULL) {
+ // previously die character found - end loop
+
+ ast_log(LOG_DEBUG, "prev die digit %c pressed\n", res);
+ break;
+ } else {
+ // chars in valid_dtmf_digits found
+
+ ast_log(LOG_DEBUG, "dtmf turn=%d of %d | res=%d\n", dtmf_count, maxdigits, res);
+ sprintf(buf, "%c|", res);
+ strcat(digits, buf);
+ dtmf_count++;
+ }
+ }
+ } while ( strchr(previously_die_on, res) == NULL && dtmf_count < maxdigits && chan->stream);
+ ast_stopstream(chan);
+
+ ast_agi_send(agi->fd, chan, "200 result=%s\n", digits);
+ } else {
+ res = ast_waitfordigit_full(chan, to, agi->audio, agi->ctrl);
+ ast_agi_send(agi->fd, chan, "200 result=%c\n", res);
+ }
+ } else {
+ res = ast_waitfordigit_full(chan, to, agi->audio, agi->ctrl);
+ ast_agi_send(agi->fd, chan, "200 result=%c\n", res);
+ }
+
+ ast_free(escape_digits);
+ ast_free(digits);
+
return (res >= 0) ? RESULT_SUCCESS : RESULT_FAILURE;
}