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|
/*
* answer.c
*
* $Id: answer.c,v 1.23 2005/11/24 17:30:58 gert Exp $
*
*/
#include "../include/voice.h"
int answer_mode;
char dtmf_code[VOICE_BUF_LEN];
int execute_dtmf_script;
int first_dtmf;
int hangup_requested;
int switch_to_data_fax_mode;
/* This wrapper is used for answering functions at the vgetty
* call initialization.
*/
static int enter_data_fax_mode_wrapper(int answer_mode) {
if (cvd.force_autodetect.d.i) {
answer_mode = ANSWER_DATA | ANSWER_FAX;
}
return enter_data_fax_mode(answer_mode);
}
static int get_answer_mode(char* ring_type)
{
char answer_mode[VOICE_BUF_LEN] = "";
int result = 0;
/*
* This is only a temporary place for the read from the config file,
* to keep the interface to mgetty unchanged. It will move to another
* routine in the future, that is called from mgetty after the first
* ring, when the ring type and caller id information is available,
* so that the number of rings to answer the phone can also be set by
* the voice configuration file.
*/
lprintf(L_MESG, "reading ring_type %s configuration from config file %s",
ring_type, voice_config_file);
get_config(voice_config_file, (conf_data *) &cvd, "ring_type", ring_type);
strcpy(answer_mode, cvd.answer_mode.d.p);
if (strlen(answer_mode) != 0)
{
int i;
char *prefix = "";
if (strncmp(answer_mode, "/", 1) == 0)
{
char answer_mode_file_name[VOICE_BUF_LEN];
FILE *answer_mode_file;
sprintf(answer_mode_file_name, "%s.%s",
answer_mode, DevID);
answer_mode_file = fopen(answer_mode_file_name, "r");
if (answer_mode_file != NULL)
{
lprintf(L_JUNK, "%s: reading answer mode file %s",
program_name, answer_mode_file_name);
fscanf(answer_mode_file, "%s", answer_mode);
fclose(answer_mode_file);
}
else
{
sprintf(answer_mode_file_name, "%s", answer_mode);
answer_mode_file = fopen(answer_mode_file_name, "r");
if (answer_mode_file != NULL)
{
lprintf(L_JUNK, "%s: reading answer mode file %s",
program_name, answer_mode_file_name);
fscanf(answer_mode_file, "%s", answer_mode);
fclose(answer_mode_file);
};
};
}
else
lprintf(L_JUNK, "%s: answer mode was set directly",
program_name);
for (i = 0; i < strlen(answer_mode); i++)
answer_mode[i] = tolower(answer_mode[i]);
lprintf(L_JUNK, "%s: answer mode is [", program_name);
if (strstr(answer_mode, "data"))
{
result |= ANSWER_DATA;
lputs(L_JUNK, "data");
prefix = "|";
};
if (strstr(answer_mode, "fax"))
{
result |= ANSWER_FAX;
lputs(L_JUNK, prefix);
lputs(L_JUNK, "fax");
prefix = "|";
};
if (strstr(answer_mode, "voice"))
{
result |= ANSWER_VOICE;
lputs(L_JUNK, prefix);
lputs(L_JUNK, "voice");
};
lputs(L_JUNK, "]");
};
if (result == 0)
{
lprintf(L_NOISE,
"%s: answer mode is set to not accept any kind of call",
program_name);
/*
* Ignore everything until the phone stops ringing and exit then
*/
voice_flush(100);
exit(1);
};
return(result);
}
static void get_greeting_message(char *message)
{
char message_dir[VOICE_BUF_LEN];
char list_file_name[VOICE_BUF_LEN];
char message_file_name[VOICE_BUF_LEN];
FILE *list;
strcpy(message_file_name, cvd.backup_message.d.p);
make_path(message_dir, cvd.voice_dir.d.p, cvd.message_dir.d.p);
make_path(list_file_name, message_dir, cvd.message_list.d.p);
lprintf(L_JUNK, "%s: opening list file %s", program_name,
list_file_name);
list = fopen(list_file_name, "r");
if (list != NULL)
{
int choice;
int count = 0;
int i;
while (fgets(message_file_name, VOICE_BUF_LEN, list) != NULL)
count++;
if (count == 0)
strcpy(message_file_name, cvd.backup_message.d.p);
else
{
#ifdef M_UNIX /* SCO has no srandom */
srand(time(NULL) | getpid());
choice = rand() % count + 1;
#else
srandom(time(NULL) | getpid());
choice = random() % count + 1;
#endif
lprintf(L_JUNK,
"%s: found %d messages, picked message number %d",
program_name, count, choice);
rewind(list);
for (i = 0; i < choice; i++)
fgets(message_file_name, VOICE_BUF_LEN, list);
i = strlen(message_file_name) - 1;
if ((i > 0) && (message_file_name[i] == NL))
message_file_name[i] = 0x00;
}
fclose(list);
};
make_path(message, message_dir, message_file_name);
lprintf(L_JUNK, "%s: message name is %s", program_name, message);
}
static void get_beep_sound(char *beepsound)
{
char message_dir[VOICE_BUF_LEN];
char beep_sound_name[VOICE_BUF_LEN];
strcpy(beep_sound_name, cvd.beepsound.d.p);
if (!*beep_sound_name)
{
*beepsound = '\0';
return;
}
make_path(message_dir, cvd.voice_dir.d.p, cvd.message_dir.d.p);
make_path(beepsound, message_dir, beep_sound_name);
lprintf(L_JUNK, "%s: beepsound name is %s", program_name, beepsound);
}
static void get_pre_message(char *pre_message)
{
char message_dir[VOICE_BUF_LEN];
char pre_message_name[VOICE_BUF_LEN];
strcpy(pre_message_name, cvd.pre_message.d.p);
if (!*pre_message_name)
{
*pre_message = '\0';
return;
}
make_path(message_dir, cvd.voice_dir.d.p, cvd.message_dir.d.p);
make_path(pre_message, message_dir, pre_message_name);
lprintf(L_JUNK, "%s: pre_message name is %s", program_name, pre_message);
}
static void remove_message(char *message)
{
if (!cvd.rec_always_keep.d.i)
{
lprintf(L_JUNK, "%s: removing message %s", program_name, message);
unlink(message);
};
}
int vgetty_answer(int rings, int rings_wanted, int dist_ring)
{
time_t call_start;
time_t call_end;
time_t call_length;
char greeting_message[VOICE_BUF_LEN];
char beep_sound[VOICE_BUF_LEN];
char pre_message[VOICE_BUF_LEN];
char receive_dir[VOICE_BUF_LEN];
char message[VOICE_BUF_LEN];
char message_name[VOICE_BUF_LEN];
char ring_type[20] = "ring";
int i, j;
int result;
char c;
pid_t pid = getpid();
setup_environment(); /* caller ID, called ID and stuff */
/*
* Mapping from mgetty's answer mode detection to the new vgetty way
*/
if (virtual_ring)
strcpy( ring_type, "virtual" );
if (dist_ring > 0 && dist_ring < 100000 )
sprintf( ring_type, "ring%d", dist_ring );
answer_mode = get_answer_mode(ring_type);
if ((answer_mode & ANSWER_VOICE) == 0)
{
if (enter_data_fax_mode_wrapper(answer_mode)
== FAIL)
{
lprintf(L_WARN, "%s: Could not switch to data or fax mode",
program_name);
exit(99);
}
return(VMA_OK);
};
get_pre_message(pre_message);
get_greeting_message(greeting_message);
get_beep_sound(beep_sound);
strcpy(dtmf_code, "");
execute_dtmf_script = FALSE;
first_dtmf = TRUE;
hangup_requested = FALSE;
switch_to_data_fax_mode = FALSE;
if (voice_mode_on() == FAIL)
{
lprintf(L_WARN, "%s: Could not switch to voice mode",
program_name);
exit(99);
}
if (voice_modem_quirks() & VMQ_NEEDS_SET_DEVICE_BEFORE_ANSWER) {
if (voice_set_device(DIALUP_LINE) != OK) {
lprintf(L_WARN, "%s: Could not switch to dialup line",
program_name);
exit(99);
}
}
result = voice_answer_phone();
switch (result) {
case VMA_OK:
/* VOICE */
break;
case VMA_CONNECT:
/* DATA */
case VMA_FCON:
/* FAX */
case VMA_FAX:
case VMA_FCO:
voice_restore_signal_handler();
tio_set(voice_fd, &tio_save);
return result;
break;
default:
lprintf(L_WARN, "%s: Could not answer the phone. Strange...",
program_name);
exit(99);
break;
}
make_path(receive_dir, cvd.voice_dir.d.p, cvd.receive_dir.d.p);
/* The file name is made from "v", then the pid, then the
* time_t, then the possible CallerId, plus separators.
* The caller-ID is truncated at 16 characters.
* NOTES
* - On system not supporting standard file names (e.g. 14-characters
* sysvfs), only the pid will be used.
*/
#ifdef SHORT_FILENAMES
sprintf(message_name, "v%u",
pid);
#else /* !SHORT_FILENAMES */
sprintf(message_name, "v-%u-%u",
pid,
(unsigned int) time(NULL));
#endif /* !SHORT_FILENAMES */
#ifndef SHORT_FILENAMES
/* Include caller ID string in the file name */
if (strcmp(CallerId, "none")) {
i = strlen(message_name);
message_name[i++] = '-';
for (j = 0; j < 16 && CallerId[j]; j++) {
c = CallerId[j];
if (c == ' ' || c == '/' || c == '\\'|| c == '&' || c == ';' ||
c == '(' || c == ')' || c == '>' || c == '<' || c == '|' ||
c == '?' || c == '*' || c == '\''|| c == '"' || c == '`')
{
if (message_name[i-1] != '-')
message_name[i++] = '-' ;
}
else
message_name[i++] = c;
}
if (message_name[i-1] == '-')
i--;
message_name[i] = '\0';
}
#endif
strcat(message_name, ".rmd");
make_path(message, receive_dir, message_name);
if (!(voice_modem_quirks() & VMQ_NEEDS_SET_DEVICE_BEFORE_ANSWER)) {
if (voice_set_device(DIALUP_LINE) != OK) {
lprintf(L_WARN, "%s: Could not switch to dialup line",
program_name);
exit(99);
}
}
if (strlen(cvd.call_program.d.p) != 0)
{
char *arguments[2];
char call_program[VOICE_BUF_LEN];
int result;
arguments[0] = DevID;
arguments[1] = NULL;
make_path(call_program, cvd.voice_dir.d.p, cvd.call_program.d.p);
result = voice_execute_shell_script(call_program, arguments);
if (result == FAIL)
{
lprintf(L_WARN, "%s: shell script %s exited unnormally",
program_name, call_program);
}
else
switch (result)
{
case 1:
if (enter_data_fax_mode_wrapper
(answer_mode & ANSWER_DATA)
== FAIL)
{
lprintf(L_WARN,
"%s: Could not switch to data mode",
program_name);
exit(99);
}
return(VMA_OK);
case 2:
if (enter_data_fax_mode_wrapper(answer_mode & ANSWER_FAX) ==
FAIL)
{
lprintf(L_WARN,
"%s: Could not switch to fax mode",
program_name);
exit(99);
}
return(VMA_OK);
case 3:
if (enter_data_fax_mode_wrapper(answer_mode & (ANSWER_DATA |
ANSWER_FAX)) == FAIL)
{
lprintf(L_WARN,
"%s: Could not switch to data/fax mode",
program_name);
exit(99);
}
return(VMA_OK);
default:
if (voice_set_device(NO_DEVICE) != OK)
{
lprintf(L_WARN,
"%s: Could not hang up the line",
program_name);
exit(99);
}
if (voice_mode_off() == FAIL)
{
lprintf(L_WARN,
"%s: Could not turn off voice mode",
program_name);
exit(99);
}
if (voice_close_device() == FAIL)
{
lprintf(L_WARN,
"%s: Could not close the voice device",
program_name);
exit(99);
}
exit(0);
};
};
if (*pre_message)
{
if (voice_play_file(pre_message) == FAIL)
{
lprintf(L_WARN, "%s: Could not play pre_message sound file",
program_name);
}
}
if (voice_play_file(greeting_message) == FAIL)
{
lprintf(L_WARN, "%s: Could not play greeting message",
program_name);
}
if ((execute_dtmf_script) && (strlen(cvd.dtmf_program.d.p) != 0))
{
char *arguments[3];
char dtmf_program[VOICE_BUF_LEN];
arguments[0] = dtmf_code;
arguments[1] = "none";
arguments[2] = NULL;
make_path(dtmf_program, cvd.voice_dir.d.p, cvd.dtmf_program.d.p);
lprintf(L_AUDIT,
"got DTMF code - executing DTMF program, name='%s', caller=%s, dev=%s, pid=%d",
CallName, CallerId, DevID, getpid());
voice_execute_shell_script(dtmf_program, arguments);
#if 0
/* selecting NO_DEVICE means to hang up the line-> so vgetty shouldn't do this! */
if (voice_set_device(NO_DEVICE) != OK)
{
lprintf(L_WARN, "%s: Could not hang up the line",
program_name);
exit(99);
}
#endif
if (voice_mode_off() == FAIL)
{
lprintf(L_WARN, "%s: Could not turn off voice mode",
program_name);
exit(99);
}
if (voice_close_device() == FAIL)
{
lprintf(L_WARN, "%s: Could not close the voice device",
program_name);
exit(99);
}
exit(0);
};
if (hangup_requested)
{
lprintf(L_AUDIT,
"hangup requested, name='%s', caller=%s, dev=%s, pid=%d",
CallName, CallerId, DevID, getpid());
if (voice_set_device(NO_DEVICE) != OK)
{
lprintf(L_WARN, "%s: Could not hang up the line",
program_name);
exit(99);
}
if (voice_mode_off() == FAIL)
{
lprintf(L_WARN, "%s: Could not turn off voice mode",
program_name);
exit(99);
}
if (voice_close_device() == FAIL)
{
lprintf(L_WARN, "%s: Could not close the voice device",
program_name);
exit(99);
}
exit(0);
};
if (switch_to_data_fax_mode)
{
if (enter_data_fax_mode_wrapper(answer_mode) == FAIL)
{
lprintf(L_WARN, "%s: Could not switch to data/fax mode",
program_name);
exit(99);
}
return(VMA_OK);
};
if (*beep_sound)
{
if (voice_play_file(beep_sound) == FAIL)
{
lprintf(L_WARN, "%s: Could not play beep sound file",
program_name);
}
}
else
{
if (voice_beep(cvd.beep_frequency.d.i, cvd.beep_length.d.i) == FAIL)
{
lprintf(L_WARN, "%s: Beep command failed", program_name);
}
}
if ((execute_dtmf_script) && (strlen(cvd.dtmf_program.d.p) != 0))
{
char *arguments[3];
char dtmf_program[VOICE_BUF_LEN];
arguments[0] = dtmf_code;
arguments[1] = "none";
arguments[2] = NULL;
make_path(dtmf_program, cvd.voice_dir.d.p, cvd.dtmf_program.d.p);
lprintf(L_AUDIT,
"got DTMF code - executing DTMF program, name='%s', caller=%s, dev=%s, pid=%d",
CallName, CallerId, DevID, getpid());
voice_execute_shell_script(dtmf_program, arguments);
#if 0
/* the dtmf program can't do anything with a disconnected line */
if (voice_set_device(NO_DEVICE) == FAIL)
{
lprintf(L_WARN, "%s: Could not hang up the line",
program_name);
exit(99);
}
#endif
if (voice_mode_off() == FAIL)
{
lprintf(L_WARN, "%s: Could not turn off voice mode",
program_name);
exit(99);
}
if (voice_close_device() == FAIL)
{
lprintf(L_WARN, "%s: Could not close the voice device",
program_name);
exit(99);
}
exit(0);
};
if (hangup_requested)
{
lprintf(L_AUDIT,
"hangup requested, name='%s', caller=%s, dev=%s, pid=%d",
CallName, CallerId, DevID, getpid());
if (voice_set_device(NO_DEVICE) != OK)
{
lprintf(L_WARN, "%s: Could not hang up the line",
program_name);
exit(99);
}
if (voice_mode_off() == FAIL)
{
lprintf(L_WARN, "%s: Could not turn off voice mode",
program_name);
exit(99);
}
if (voice_close_device() == FAIL)
{
lprintf(L_WARN, "%s: Could not close the voice device",
program_name);
exit(99);
}
exit(0);
};
if (switch_to_data_fax_mode)
{
if (enter_data_fax_mode_wrapper(answer_mode) == FAIL)
{
lprintf(L_WARN, "%s: Could not switch to data/fax mode",
program_name);
exit(99);
}
return(VMA_OK);
};
time(&call_start);
if (cvd.rec_max_len.d.i == 0) {
lprintf(L_NOISE,
"%s: skipping message recording",
program_name);
}
else if (voice_record_file(message) == FAIL)
{
lprintf(L_WARN, "%s: Could not record a message",
program_name);
exit(99);
}
time(&call_end);
call_length = call_end - call_start;
/*
* change file owner, group and mode done by function
*/
if ((cvd.rec_min_len.d.i != 0) && (call_length <= cvd.rec_min_len.d.i))
switch_to_data_fax_mode = TRUE;
if ((execute_dtmf_script) && (strlen(cvd.dtmf_program.d.p) != 0))
{
char *arguments[3];
char dtmf_program[VOICE_BUF_LEN];
arguments[0] = dtmf_code;
arguments[1] = message;
arguments[2] = NULL;
remove_message(message);
make_path(dtmf_program, cvd.voice_dir.d.p, cvd.dtmf_program.d.p);
lprintf(L_AUDIT,
"got DTMF code - executing DTMF program, name='%s', caller=%s, dev=%s, pid=%d",
CallName, CallerId, DevID, getpid());
voice_execute_shell_script(dtmf_program, arguments);
#if 0
if (voice_set_device(NO_DEVICE) == FAIL)
{
lprintf(L_WARN, "%s: Could not hang up the line",
program_name);
exit(99);
}
#endif
if (voice_mode_off() == FAIL)
{
lprintf(L_WARN, "%s: Could not turn off voice mode",
program_name);
exit(99);
}
if (voice_close_device() == FAIL)
{
lprintf(L_WARN, "%s: Could not close the voice device",
program_name);
exit(99);
}
exit(0);
};
if (!hangup_requested && (switch_to_data_fax_mode))
{
remove_message(message);
if (enter_data_fax_mode_wrapper(answer_mode) == FAIL)
{
lprintf(L_WARN, "%s: Could not switch to data/fax mode",
program_name);
exit(99);
}
return(VMA_OK);
};
if (!hangup_requested)
{
if (*beep_sound)
{
if (voice_play_file(beep_sound) == FAIL)
{
lprintf(L_WARN, "%s: Could not play beep sound file",
program_name);
}
}
else
{
if (voice_beep(cvd.beep_frequency.d.i, cvd.beep_length.d.i) == FAIL)
{
lprintf(L_WARN, "%s: Beep command failed");
}
}
}
if (voice_set_device(NO_DEVICE) != OK)
{
lprintf(L_WARN, "%s: Could not hang up the line",
program_name);
exit(99);
}
if (voice_mode_off() == FAIL)
{
lprintf(L_WARN, "%s: Could not turn off voice mode",
program_name);
exit(99);
}
if (voice_close_device() == FAIL)
{
lprintf(L_WARN, "%s: Could not close the voice device",
program_name);
exit(99);
}
lprintf(L_AUDIT,
"message keep, length=%02d:%02d:%02d, name='%s', caller=%s, dev=%s, pid=%d",
(int) (call_length / 3600), (int) ((call_length / 60) % 60),
(int) (call_length % 60), CallName, CallerId, DevID, getpid());
vgetty_create_message_flag_file();
if (strlen(cvd.message_program.d.p) != 0)
{
char *arguments[4];
char message_program[VOICE_BUF_LEN];
arguments[0] = message;
arguments[1] = CallerId;
arguments[2] = CallName;
arguments[3] = NULL;
lprintf(L_NOISE, "executing message program, dev=%s, pid=%d",
DevID, getpid());
make_path(message_program, cvd.voice_dir.d.p,
cvd.message_program.d.p);
voice_execute_shell_script(message_program, arguments);
};
exit(0);
}
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