char *
cmyth_conn_get_backend_hostname(cmyth_conn_t conn)
{
int count, err;
char* result = NULL;
pthread_mutex_lock(&mutex);
if(conn->conn_version < 17) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: protocol version doesn't support QUERY_HOSTNAME\n",
__FUNCTION__);
return NULL;
}
if (!conn) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no connection\n",
__FUNCTION__);
return NULL;
}
if ((err = cmyth_send_message(conn, "QUERY_HOSTNAME")) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
goto err;
}
if ((count=cmyth_rcv_length(conn)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
goto err;
}
result = ref_alloc(count+1);
count -= cmyth_rcv_string(conn, &err,
result, count, count);
if (err < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_string() failed (%d)\n",
__FUNCTION__, err);
goto err;
}
while(count > 0 && !err) {
char buffer[100];
count -= cmyth_rcv_string(conn, &err, buffer, sizeof(buffer)-1, count);
buffer[sizeof(buffer)-1] = 0;
cmyth_dbg(CMYTH_DBG_ERROR, "%s: odd left over data %s\n", __FUNCTION__, buffer);
}
pthread_mutex_unlock(&mutex);
if(!strcmp("-1",result)) {
cmyth_dbg(CMYTH_DBG_PROTO, "%s: Failed to retrieve backend hostname.\n",
__FUNCTION__);
return NULL;
}
return result;
err:
pthread_mutex_unlock(&mutex);
if(result)
ref_release(result);
return NULL;
}
static char *
cmyth_conn_get_setting_unlocked(cmyth_conn_t conn, const char* hostname, const char* setting)
{
char msg[256];
int count, err;
char* result = NULL;
if(conn->conn_version < 17) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: protocol version doesn't support QUERY_SETTING\n",
__FUNCTION__);
return NULL;
}
if (!conn) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no connection\n",
__FUNCTION__);
return NULL;
}
snprintf(msg, sizeof(msg), "QUERY_SETTING %s %s", hostname, setting);
if ((err = cmyth_send_message(conn, msg)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
goto err;
}
if ((count=cmyth_rcv_length(conn)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
goto err;
}
result = ref_alloc(count+1);
count -= cmyth_rcv_string(conn, &err,
result, count, count);
if (err < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_string() failed (%d)\n",
__FUNCTION__, err);
goto err;
}
while(count > 0 && !err) {
char buffer[100];
count -= cmyth_rcv_string(conn, &err, buffer, sizeof(buffer)-1, count);
buffer[sizeof(buffer)-1] = 0;
cmyth_dbg(CMYTH_DBG_ERROR, "%s: odd left over data %s\n", __FUNCTION__, buffer);
}
if(!strcmp("-1",result)) {
cmyth_dbg(CMYTH_DBG_PROTO, "%s: Setting: %s or hostname: %s not found.\n",
__FUNCTION__, setting,hostname);
return NULL;
}
return result;
err:
if(result)
ref_release(result);
return NULL;
}
/*
* cmyth_recorder_get_duration_map()
*
* Scope: PUBLIC
*
* Description
*
* Request a list of {keynum, duration} pairs starting at keynum
* 'start' and ending with keynum 'end' from the current recording on
* recorder 'rec'.
*
* Return Value:
*
* Success: A non-NULL, held cmyth_posmap_t
* Failure: A NULL pointer
*/
cmyth_posmap_t
cmyth_recorder_get_duration_map(cmyth_recorder_t rec, uint32_t start, uint32_t end)
{
int err, count, consumed;
cmyth_posmap_t ret = NULL;
char msg[256];
char tmp[1024];
if (!rec || !rec->rec_conn) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no recorder connection\n",
__FUNCTION__);
return NULL;
}
pthread_mutex_lock(&rec->rec_conn->conn_mutex);
if (rec->rec_conn->conn_version >= 77)
{
snprintf(msg, sizeof(msg), "QUERY_RECORDER %"PRIu32"[]:[]FILL_DURATION_MAP[]:[]%"PRIu32"[]:[]%"PRIu32, rec->rec_id, start, end);
if ((err = cmyth_send_message(rec->rec_conn, msg)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
goto fail;
}
count = cmyth_rcv_length(rec->rec_conn);
if (count < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
goto fail;
}
ret = cmyth_posmap_create();
if (ret == NULL) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_posmap_create() failed\n",
__FUNCTION__);
goto fail;
}
if (count > 2) {
consumed = cmyth_rcv_posmap(rec->rec_conn, &err, ret, count);
count -= consumed;
if (err) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_posmap() failed (%d)\n",
__FUNCTION__, err);
ref_release(ret);
ret = NULL;
}
}
err = 0;
while(count > 0 && err == 0) {
consumed = cmyth_rcv_data(rec->rec_conn, &err, (unsigned char*)tmp, sizeof(tmp) - 1, count);
cmyth_dbg(CMYTH_DBG_ERROR, "%s: leftover data: count %i, read %i, errno %i\n", __FUNCTION__, count, consumed, err);
count -= consumed;
}
}
fail:
pthread_mutex_unlock(&rec->rec_conn->conn_mutex);
return ret;
}
/*
* cmyth_conn_connect_path(char* path, cmyth_conn_t control,
* unsigned buflen, int tcp_rcvbuf)
*
* Scope: PUBLIC
*
* Description:
*
* Create a file structure containing a data connection for use
* transfering a file within the MythTV protocol. Return a pointer to
* the newly created file structure. The connection in the file
* structure is returned held as is the file structure itself. The
* connection will be released when the file structure is released.
* The file structure can be released using ref_release().
*
* Return Value:
*
* Success: Non-NULL cmyth_file_t (this is a pointer type)
*
* Failure: NULL cmyth_file_t
*/
cmyth_file_t
cmyth_conn_connect_path(char* path, cmyth_conn_t control,
unsigned buflen, int tcp_rcvbuf, char* storage_group)
{
cmyth_conn_t conn = NULL;
char *announcement = NULL;
char reply[16];
char host[256];
int err = 0;
int count = 0;
int r, port;
int ann_size = sizeof("ANN FileTransfer 0[]:[][]:[]");
struct sockaddr_in addr;
socklen_t addr_size = sizeof(addr);
cmyth_file_t ret = NULL;
if (getpeername(control->conn_fd, (struct sockaddr*)&addr, &addr_size)<0) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: getpeername() failed\n",
__FUNCTION__);
goto shut;
}
inet_ntop(addr.sin_family, &addr.sin_addr, host, sizeof(host));
port = ntohs(addr.sin_port);
ret = cmyth_file_create(control);
if (!ret) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: cmyth_file_create() failed\n",
__FUNCTION__);
goto shut;
}
cmyth_dbg(CMYTH_DBG_PROTO, "%s: connecting data connection\n",
__FUNCTION__);
conn = cmyth_connect(host, port, buflen, tcp_rcvbuf);
cmyth_dbg(CMYTH_DBG_PROTO,
"%s: done connecting data connection, conn = %p\n",
__FUNCTION__, conn);
if (!conn) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_connect(%s, %d, %d) failed\n",
__FUNCTION__, host, port, buflen);
goto shut;
}
/*
* Explicitly set the conn version to the control version as cmyth_connect() doesn't and some of
* the cmyth_rcv_* functions expect it to be the same as the protocol version used by mythbackend.
*/
conn->conn_version = control->conn_version;
ann_size += strlen(path) + strlen(my_hostname) + strlen(storage_group) + 6;
announcement = malloc(ann_size);
if (!announcement) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: malloc(%d) failed for announcement\n",
__FUNCTION__, ann_size);
goto shut;
}
if (control->conn_version >= 44) { /*TSP: from version 44 according to the source code*/
if (strlen(storage_group) > 1) {
sprintf(announcement, "ANN FileTransfer %s 0 0 0[]:[]%s[]:[]%s",
my_hostname, path, storage_group);
} else {
sprintf(announcement, "ANN FileTransfer %s 0[]:[]%s[]:[]", // write = false
my_hostname, path);
}
} else {
sprintf(announcement, "ANN FileTransfer %s[]:[]%s",
my_hostname, path);
}
if (cmyth_send_message(conn, announcement) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message('%s') failed\n",
__FUNCTION__, announcement);
goto shut;
}
ret->file_data = ref_hold(conn);
count = cmyth_rcv_length(conn);
if (count < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
goto shut;
}
reply[sizeof(reply) - 1] = '\0';
r = cmyth_rcv_string(conn, &err, reply, sizeof(reply) - 1, count);
if (err != 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_string() failed (%d)\n",
__FUNCTION__, err);
goto shut;
}
if (strcmp(reply, "OK") != 0) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: reply ('%s') is not 'OK'\n",
__FUNCTION__, reply);
goto shut;
}
count -= r;
r = cmyth_rcv_long(conn, &err, &ret->file_id, count);
if (err) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: (id) cmyth_rcv_long() failed (%d)\n",
__FUNCTION__, err);
goto shut;
}
count -= r;
r = cmyth_rcv_uint64(conn, &err, &ret->file_length, count);
if (err) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: (length) cmyth_rcv_uint64() failed (%d)\n",
__FUNCTION__, err);
goto shut;
}
count -= r;
free(announcement);
ref_release(conn);
return ret;
shut:
if (announcement) {
free(announcement);
}
ref_release(ret);
ref_release(conn);
return NULL;
}
cmyth_event_t
cmyth_event_get(cmyth_conn_t conn, char * data, int len)
{
int count, err, consumed, i;
char tmp[1024];
cmyth_event_t event;
cmyth_proginfo_t proginfo = NULL;
if (conn == NULL)
goto fail;
if ((count=cmyth_rcv_length(conn)) <= 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
return CMYTH_EVENT_CLOSE;
}
consumed = cmyth_rcv_string(conn, &err, tmp, sizeof(tmp) - 1, count);
count -= consumed;
if (strcmp(tmp, "BACKEND_MESSAGE") != 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_string() failed (%d)\n",
__FUNCTION__, count);
goto fail;
}
consumed = cmyth_rcv_string(conn, &err, tmp, sizeof(tmp) - 1, count);
count -= consumed;
if (strcmp(tmp, "RECORDING_LIST_CHANGE") == 0) {
event = CMYTH_EVENT_RECORDING_LIST_CHANGE;
} else if (strncmp(tmp, "RECORDING_LIST_CHANGE ADD", 25) == 0) {
event = CMYTH_EVENT_RECORDING_LIST_CHANGE_ADD;
strncpy(data, tmp + 26, len);
} else if (strcmp(tmp, "RECORDING_LIST_CHANGE UPDATE") == 0) {
event = CMYTH_EVENT_RECORDING_LIST_CHANGE_UPDATE;
/* receive a proginfo structure - do nothing with it (yet?)*/
proginfo = cmyth_proginfo_create();
if (!proginfo) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_proginfo_create() failed\n",
__FUNCTION__);
goto fail;
}
consumed = cmyth_rcv_proginfo(conn, &err, proginfo, count);
ref_release(proginfo);
proginfo = NULL;
count -= consumed;
} else if (strncmp(tmp, "RECORDING_LIST_CHANGE DELETE", 28) == 0) {
event = CMYTH_EVENT_RECORDING_LIST_CHANGE_DELETE;
strncpy(data, tmp + 29, len);
} else if (strcmp(tmp, "SCHEDULE_CHANGE") == 0) {
event = CMYTH_EVENT_SCHEDULE_CHANGE;
} else if (strncmp(tmp, "DONE_RECORDING", 14) == 0) {
event = CMYTH_EVENT_DONE_RECORDING;
} else if (strncmp(tmp, "QUIT_LIVETV", 11) == 0) {
event = CMYTH_EVENT_QUIT_LIVETV;
} else if (strncmp(tmp, "LIVETV_WATCH", 12) == 0) {
event = CMYTH_EVENT_WATCH_LIVETV;
strncpy(data, tmp + 13, len);
/* Sergio: Added to support the new live tv protocol */
} else if (strncmp(tmp, "LIVETV_CHAIN UPDATE", 19) == 0) {
event = CMYTH_EVENT_LIVETV_CHAIN_UPDATE;
strncpy(data, tmp + 20, len);
} else if (strncmp(tmp, "SIGNAL", 6) == 0) {
int dstlen=len;
event = CMYTH_EVENT_SIGNAL;
/*Get Recorder ID */
strncat(data,"cardid ",7);
strncat(data,tmp+7,consumed-12);
strncat(data,";",2);
/* get slock, signal, seen_pat, matching_pat */
while (count > 0) {
/* get signalmonitorvalue name */
consumed = cmyth_rcv_string(conn, &err, tmp, sizeof(tmp) - 1, count);
count -= consumed;
/*strncat(data,tmp,dstlen-2);
strncat(data,"=",2);
dstlen -= consumed;*/
/* get signalmonitorvalue status */
consumed = cmyth_rcv_string(conn, &err, tmp, sizeof(tmp) - 1, count);
count -= consumed;
strncat(data,tmp,dstlen-2);
strncat(data,";",2);
dstlen -= consumed;
}
} else if (strncmp(tmp, "ASK_RECORDING", 13) == 0) {
event = CMYTH_EVENT_ASK_RECORDING;
if (cmyth_conn_get_protocol_version(conn) < 37) {
/* receive 4 string - do nothing with them */
for (i = 0; i < 4; i++) {
consumed = cmyth_rcv_string(conn, &err, tmp, sizeof(tmp) -1, count);
count -= consumed;
}
} else {
/* receive a proginfo structure - do nothing with it (yet?)*/
proginfo = cmyth_proginfo_create();
if (!proginfo) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_proginfo_create() failed\n",
__FUNCTION__);
goto fail;
}
consumed = cmyth_rcv_proginfo(conn, &err, proginfo, count);
ref_release(proginfo);
proginfo = NULL;
count -= consumed;
}
} else if (strncmp(tmp, "CLEAR_SETTINGS_CACHE", 20) == 0) {
event = CMYTH_EVENT_CLEAR_SETTINGS_CACHE;
} else if (strncmp(tmp, "GENERATED_PIXMAP", 16) == 0) {
/* capture the file which a pixmap has been generated for */
event = CMYTH_EVENT_GENERATED_PIXMAP;
consumed = cmyth_rcv_string(conn, &err, tmp, sizeof(tmp) - 1, count);
if (strncmp(tmp, "OK", 2) == 0) {
consumed = cmyth_rcv_string(conn, &err, tmp, sizeof(tmp) - 1, count);
strncpy(data, tmp, len);
} else {
data[0] = 0;
}
} else if (strncmp(tmp, "SYSTEM_EVENT", 12) == 0) {
event = CMYTH_EVENT_SYSTEM_EVENT;
strncpy(data, tmp + 13, len);
} else if (strncmp(tmp, "UPDATE_FILE_SIZE", 16) == 0) {
event = CMYTH_EVENT_UPDATE_FILE_SIZE;
strncpy(data, tmp + 17, len);
} else {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: unknown mythtv BACKEND_MESSAGE '%s'\n", __FUNCTION__, tmp);
event = CMYTH_EVENT_UNKNOWN;
}
while(count > 0) {
consumed = cmyth_rcv_string(conn, &err, tmp, sizeof(tmp) - 1, count);
count -= consumed;
cmyth_dbg(CMYTH_DBG_DEBUG, "%s: leftover data %s\n", __FUNCTION__, tmp);
}
return event;
fail:
return CMYTH_EVENT_UNKNOWN;
}
int
cmyth_conn_get_freespace(cmyth_conn_t control,
long long *total, long long *used)
{
int err, count, ret = 0;
int r;
char msg[256];
char reply[256];
long long lreply;
if (control == NULL)
return -EINVAL;
if ((total == NULL) || (used == NULL))
return -EINVAL;
pthread_mutex_lock(&mutex);
if (control->conn_version >= 32)
{ snprintf(msg, sizeof(msg), "QUERY_FREE_SPACE_SUMMARY"); }
else if (control->conn_version >= 17)
{ snprintf(msg, sizeof(msg), "QUERY_FREE_SPACE"); }
else
{ snprintf(msg, sizeof(msg), "QUERY_FREESPACE"); }
if ((err = cmyth_send_message(control, msg)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
ret = err;
goto out;
}
if ((count=cmyth_rcv_length(control)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
ret = count;
goto out;
}
if (control->conn_version >= 17) {
if ((r=cmyth_rcv_long_long(control, &err, &lreply,
count)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_long_long() failed (%d)\n",
__FUNCTION__, err);
ret = err;
goto out;
}
*total = lreply;
if ((r=cmyth_rcv_long_long(control, &err, &lreply,
count-r)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_long_long() failed (%d)\n",
__FUNCTION__, err);
ret = err;
goto out;
}
*used = lreply;
}
else
{
if ((r=cmyth_rcv_string(control, &err, reply,
sizeof(reply)-1, count)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_string() failed (%d)\n",
__FUNCTION__, err);
ret = err;
goto out;
}
*total = atoi(reply);
if ((r=cmyth_rcv_string(control, &err, reply,
sizeof(reply)-1,
count-r)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_string() failed (%d)\n",
__FUNCTION__, err);
ret = err;
goto out;
}
*used = atoi(reply);
*used *= 1024;
*total *= 1024;
}
out:
pthread_mutex_unlock(&mutex);
return ret;
}
/*
* cmyth_proginfo_fill()
*
* Scope: PRIVATE (static)
*
* Description
*
* Fill out a (possibly incomplete) program info. Incomplete program
* info comes from program listings. Since this modifies the contents of
* the supplied program info, it must never be called with a program info
* that has more than one reference).
*
* Return Value:
*
* Success: 0
*
* Failure: a negative error code.
*/
static int
cmyth_proginfo_fill(cmyth_conn_t control, cmyth_proginfo_t prog)
{
int err = 0;
int count = 0;
int ret = 0;
char *buf;
char *proginfo;
int64_t length = 0;
if (!control) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no connection\n",
__FUNCTION__);
return -EINVAL;
}
if (!prog) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no program info\n",
__FUNCTION__);
return -EINVAL;
}
proginfo = cmyth_proginfo_string(control, prog);
if (proginfo == NULL) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: program_info failed.\n",
__FUNCTION__);
return -EINVAL;
}
buf = malloc(strlen(proginfo) + 34 + 1);
if (!buf) {
free(proginfo);
return -ENOMEM;
}
sprintf(buf, "FILL_PROGRAM_INFO cmyth[]:[]0[]:[]%s", proginfo);
free(proginfo);
pthread_mutex_lock(&control->conn_mutex);
length = prog->proginfo_Length;
if ((err = cmyth_send_message(control, buf)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
ret = err;
goto out;
}
count = cmyth_rcv_length(control);
if (count < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
ret = count;
goto out;
}
if (cmyth_rcv_proginfo(control, &err, prog, count) != count) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_proginfo() < count\n", __FUNCTION__);
ret = err;
goto out;
}
/*
* Myth seems to cache the program length, rather than call stat()
* every time it needs to know. Using FILL_PROGRAM_INFO has worked
* to force mythbackend to call stat() and return the correct length.
*
* However, some users are reporting that FILL_PROGRAM_INFO is
* returning 0 for the program length. In that case, the original
* number is still probably wrong, but it's better than 0.
*/
if (prog->proginfo_Length == 0) {
prog->proginfo_Length = length;
}
out:
pthread_mutex_unlock(&control->conn_mutex);
free(buf);
return ret;
}
/*
* cmyth_proginfo_fill(cmyth_conn_t control, cmyth_proginfo_t prog)
*
* Scope: PRIVATE (static)
*
* Description
*
* Fill out a (possibly incomplete) program info. Incomplete program
* info comes from program listings. Since this modifies the contents of
* the supplied program info, it must never be called with a program info
* that has more than one reference).
*
* Return Value:
*
* Success: 0
*
* Failure: a negative error code.
*/
static int
cmyth_proginfo_fill(cmyth_conn_t control, cmyth_proginfo_t prog)
{
int err = 0;
int count;
int ret;
long long length = 0;
if (!control) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no connection\n",
__FUNCTION__);
return -EINVAL;
}
if (!prog) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no program info\n",
__FUNCTION__);
return -EINVAL;
}
pthread_mutex_lock(&control->conn_mutex);
length = prog->proginfo_Length;
if ((ret=fill_command(control, prog, "FILL_PROGRAM_INFO") != 0))
goto out;
count = cmyth_rcv_length(control);
if (count < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
ret = count;
goto out;
}
if (cmyth_rcv_proginfo(control, &err, prog, count) != count) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_proginfo() < count\n", __FUNCTION__);
ret = err;
goto out;
}
/*
* Myth seems to cache the program length, rather than call stat()
* every time it needs to know. Using FILL_PROGRAM_INFO has worked
* to force mythbackend to call stat() and return the correct length.
*
* However, some users are reporting that FILL_PROGRAM_INFO is
* returning 0 for the program length. In that case, the original
* number is still probably wrong, but it's better than 0.
*/
if (prog->proginfo_Length == 0) {
prog->proginfo_Length = length;
ret = -1;
goto out;
}
ret = 0;
out:
pthread_mutex_unlock(&control->conn_mutex);
return ret;
}
/*
* cmyth_ringbuf_seek(
* cmyth_ringbuf_t file, long long offset, int whence)
*
* Scope: PUBLIC
*
* Description
*
* Seek to a new position in the file based on the value of whence:
* SEEK_SET
* The offset is set to offset bytes.
* SEEK_CUR
* The offset is set to the current position plus offset bytes.
* SEEK_END
* The offset is set to the size of the file minus offset bytes.
*
* Return Value:
*
* Sucess: 0
*
* Failure: an int containing -errno
*/
long long
cmyth_ringbuf_seek(cmyth_recorder_t rec,
long long offset, int whence)
{
char msg[128];
int err;
int count;
long long c;
long r;
long long ret;
cmyth_ringbuf_t ring;
if (rec == NULL)
return -EINVAL;
ring = rec->rec_ring;
if ((offset == 0) && (whence == SEEK_CUR))
return ring->file_pos;
pthread_mutex_lock(&mutex);
snprintf(msg, sizeof(msg),
"QUERY_RECORDER %u[]:[]SEEK_RINGBUF[]:[]%d[]:[]%d[]:[]%d[]:[]%d[]:[]%d",
rec->rec_id,
(int32_t)(offset >> 32),
(int32_t)(offset & 0xffffffff),
whence,
(int32_t)(ring->file_pos >> 32),
(int32_t)(ring->file_pos & 0xffffffff));
if ((err = cmyth_send_message(rec->rec_conn, msg)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
ret = err;
goto out;
}
count = cmyth_rcv_length(rec->rec_conn);
if ((r=cmyth_rcv_long_long(rec->rec_conn, &err, &c, count)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, r);
ret = err;
goto out;
}
switch (whence) {
case SEEK_SET:
ring->file_pos = offset;
break;
case SEEK_CUR:
ring->file_pos += offset;
break;
case SEEK_END:
ring->file_pos = ring->file_length - offset;
break;
}
ret = ring->file_pos;
out:
pthread_mutex_unlock(&mutex);
return ret;
}
/*
* cmyth_recorder_get_next_program_info(cmyth_recorder_t rec,
* cmyth_proginfo_t proginfo,
* cmyth_browsedir_t direction)
*
* Scope: PRIVATE (static)
*
* Description:
*
* Request program information from the recorder 'rec' for the next
* program in the program guide from the current program (i.e. current
* channel and time slot) in the direction specified by 'direction'
* which may have any of the following values:
*
* BROWSE_DIRECTION_SAME - Stay in the same place
* BROWSE_DIRECTION_UP - Move up one slot (down one channel)
* BROWSE_DIRECTION_DOWN - Move down one slot (up one channel)
* BROWSE_DIRECTION_LEFT - Move left one slot (down one time slot)
* BROWSE_DIRECTION_RIGHT - Move right one slot (up one time slot)
* BROWSE_DIRECTION_FAVORITE - Move to the next favorite slot
*
* The program information will be used to fill out 'proginfo'.
*
* This does not affect the current recording.
*
* Return Value:
*
* Success: 1 - valid channel, 0 - invalid channel
*
* Failure: -(ERRNO)
*/
int
cmyth_recorder_get_next_program_info(cmyth_recorder_t rec,
cmyth_proginfo_t cur_prog,
cmyth_proginfo_t next_prog,
cmyth_browsedir_t direction)
{
int err, count;
int ret = -ENOSYS;
char msg[256];
char title[256], subtitle[256], desc[256], category[256];
char callsign[256], iconpath[256];
char channelname[256], chanid[256], seriesid[256], programid[256];
char date[256];
struct tm *tm;
time_t t;
cmyth_conn_t control;
if (!rec) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no recorder connection\n",
__FUNCTION__);
return -ENOSYS;
}
control = rec->rec_conn;
pthread_mutex_lock(&mutex);
t = time(NULL);
tm = localtime(&t);
snprintf(date, sizeof(date), "%.4d%.2d%.2d%.2d%.2d%.2d",
tm->tm_year + 1900, tm->tm_mon + 1,
tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec);
snprintf(msg, sizeof(msg), "QUERY_RECORDER %d[]:[]GET_NEXT_PROGRAM_INFO[]:[]%s[]:[]%ld[]:[]%i[]:[]%s",
rec->rec_id, cur_prog->proginfo_channame,
cur_prog->proginfo_chanId, direction, date);
if ((err=cmyth_send_message(control, msg)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
ret = err;
goto out;
}
count = cmyth_rcv_length(control);
count -= cmyth_rcv_string(control, &err,
title, sizeof(title), count);
count -= cmyth_rcv_string(control, &err,
subtitle, sizeof(subtitle), count);
count -= cmyth_rcv_string(control, &err,
desc, sizeof(desc), count);
count -= cmyth_rcv_string(control, &err,
category, sizeof(category), count);
count -= cmyth_rcv_timestamp(control, &err,
&next_prog->proginfo_start_ts, count);
count -= cmyth_rcv_timestamp(control, &err,
&next_prog->proginfo_end_ts, count);
count -= cmyth_rcv_string(control, &err,
callsign, sizeof(callsign), count);
count -= cmyth_rcv_string(control, &err,
iconpath, sizeof(iconpath), count);
count -= cmyth_rcv_string(control, &err,
channelname, sizeof(channelname), count);
count -= cmyth_rcv_string(control, &err,
chanid, sizeof(chanid), count);
if (control->conn_version >= 12) {
count -= cmyth_rcv_string(control, &err,
seriesid, sizeof(seriesid), count);
count -= cmyth_rcv_string(control, &err,
programid, sizeof(programid), count);
}
if (count != 0) {
ret = -1;
goto out;
}
/*
* if the program info is blank, return an error
*/
if ((strlen(title) == 0) && (strlen(subtitle) == 0) &&
(strlen(desc) == 0) && (strlen(channelname) == 0) &&
(strlen(chanid) == 0)) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: blank channel found\n", __FUNCTION__);
ret = -1;
goto out;
}
next_prog->proginfo_title = ref_strdup(title);
next_prog->proginfo_subtitle = ref_strdup(subtitle);
next_prog->proginfo_description = ref_strdup(desc);
next_prog->proginfo_channame = ref_strdup(channelname);
next_prog->proginfo_chansign = ref_strdup(callsign);
next_prog->proginfo_chanId = atoi(chanid);
ref_hold(next_prog->proginfo_start_ts);
ref_hold(next_prog->proginfo_end_ts);
ret = 0;
out:
pthread_mutex_unlock(&mutex);
return ret;
}
/*
* cmyth_ringbuf_read (cmyth_recorder_t rec, char *buf, unsigned long len)
*
* Scope: PUBLIC
*
* Description
*
* Request and read a block of data from backend
*
* Return Value:
*
* Sucess: number of bytes transfered
*
* Failure: an int containing -errno
*/
int cmyth_ringbuf_read(cmyth_recorder_t rec, char *buf, unsigned long len)
{
int err, count;
int ret, req, nfds;
char *end, *cur;
char msg[256];
struct timeval tv;
fd_set fds;
if (!rec)
{
cmyth_dbg (CMYTH_DBG_ERROR, "%s: no connection\n",
__FUNCTION__);
return -EINVAL;
}
pthread_mutex_lock (&mutex);
snprintf(msg, sizeof(msg),
"QUERY_RECORDER %u[]:[]REQUEST_BLOCK_RINGBUF[]:[]%ld",
rec->rec_id, len);
if ( (err = cmyth_send_message (rec->rec_conn, msg) ) < 0)
{
cmyth_dbg (CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
ret = err;
goto out;
}
nfds = 0;
req = 1;
cur = buf;
end = buf+len;
while (cur < end || req)
{
tv.tv_sec = 20;
tv.tv_usec = 0;
FD_ZERO (&fds);
if(req) {
if((int)rec->rec_conn->conn_fd > nfds)
nfds = (int)rec->rec_conn->conn_fd;
FD_SET (rec->rec_conn->conn_fd, &fds);
}
if((int)rec->rec_ring->conn_data->conn_fd > nfds)
nfds = (int)rec->rec_ring->conn_data->conn_fd;
FD_SET (rec->rec_ring->conn_data->conn_fd, &fds);
if ((ret = select (nfds+1, &fds, NULL, NULL,&tv)) < 0)
{
cmyth_dbg (CMYTH_DBG_ERROR,
"%s: select(() failed (%d)\n",
__FUNCTION__, ret);
goto out;
}
if (ret == 0)
{
rec->rec_ring->conn_data->conn_hang = 1;
rec->rec_conn->conn_hang = 1;
ret = -ETIMEDOUT;
goto out;
}
/* check control connection */
if (FD_ISSET(rec->rec_conn->conn_fd, &fds) )
{
if ((count = cmyth_rcv_length (rec->rec_conn)) < 0)
{
cmyth_dbg (CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
ret = count;
goto out;
}
if ((ret = cmyth_rcv_ulong (rec->rec_conn, &err, &len, count))< 0)
{
cmyth_dbg (CMYTH_DBG_ERROR,
"%s: cmyth_rcv_long() failed (%d)\n",
__FUNCTION__, ret);
ret = err;
goto out;
}
rec->rec_ring->file_pos += len;
req = 0;
end = buf+len;
}
/* check data connection */
if (FD_ISSET(rec->rec_ring->conn_data->conn_fd, &fds))
{
if ((ret = recv (rec->rec_ring->conn_data->conn_fd, cur, end-cur, 0)) < 0)
{
cmyth_dbg (CMYTH_DBG_ERROR,
"%s: recv() failed (%d)\n",
__FUNCTION__, ret);
goto out;
}
cur += ret;
}
}
ret = end - buf;
out:
pthread_mutex_unlock (&mutex);
return ret;
}
/*
* cmyth_ringbuf_setup(cmyth_recorder_t old_rec)
*
* Scope: PUBLIC
*
* Description
*
* Set up the ring buffer inside a recorder for use in playing live
* tv. The recorder is supplied. This will be duplicated and
* released, so the caller can re-use the same variable to hold the
* return. The new copy of the recorder will have a ringbuffer set up
* within it.
*
* Return Value:
*
* Success: A pointer to a new recorder structure with a ringbuffer
*
* Faiure: NULL
*/
cmyth_recorder_t
cmyth_ringbuf_setup(cmyth_recorder_t rec)
{
static const char service[]="rbuf://";
cmyth_recorder_t new_rec = NULL;
char *host = NULL;
char *port = NULL;
char *path = NULL;
char tmp;
int err, count;
int r;
long long size, fill;
char msg[256];
char url[1024];
char buf[32];
cmyth_conn_t control;
if (!rec) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no recorder connection\n",
__FUNCTION__);
return NULL;
}
control = rec->rec_conn;
pthread_mutex_lock(&mutex);
snprintf(msg, sizeof(msg),
"QUERY_RECORDER %u[]:[]SETUP_RING_BUFFER[]:[]0",
rec->rec_id);
if ((err=cmyth_send_message(control, msg)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
goto out;
}
count = cmyth_rcv_length(control);
if (control->conn_version >= 16) {
r = cmyth_rcv_string(control, &err, buf, sizeof(buf)-1, count);
count -= r;
}
r = cmyth_rcv_string(control, &err, url, sizeof(url)-1, count);
count -= r;
if ((r=cmyth_rcv_long_long(control, &err, &size, count)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, r);
goto out;
}
count -= r;
if ((r=cmyth_rcv_long_long(control, &err, &fill, count)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, r);
goto out;
}
cmyth_dbg(CMYTH_DBG_DEBUG, "%s: url is: '%s'\n",
__FUNCTION__, url);
path = url;
if (strncmp(url, service, sizeof(service) - 1) == 0) {
/*
* The URL starts with rbuf://. The rest looks like
* <host>:<port>/<filename>.
*/
host = url + strlen(service);
port = strchr(host, ':');
if (!port) {
/*
* This does not seem to be a proper URL, so just
* assume it is a filename, and get out.
*/
cmyth_dbg(CMYTH_DBG_DEBUG,
"%s: 1 port %s, host = %s\n",
__FUNCTION__, port, host);
goto out;
}
port = port + 1;
path = strchr(port, '/');
if (!path) {
/*
* This does not seem to be a proper URL, so just
* assume it is a filename, and get out.
*/
cmyth_dbg(CMYTH_DBG_DEBUG, "%s: no path\n",
__FUNCTION__);
goto out;
}
}
new_rec = cmyth_recorder_dup(rec);
if (new_rec == NULL) {
cmyth_dbg(CMYTH_DBG_DEBUG, "%s: cannot create recorder\n",
__FUNCTION__);
goto out;
}
ref_release(rec);
new_rec->rec_ring = cmyth_ringbuf_create();
tmp = *(port - 1);
*(port - 1) = '\0';
new_rec->rec_ring->ringbuf_hostname = ref_strdup(host);
*(port - 1) = tmp;
tmp = *(path);
*(path) = '\0';
new_rec->rec_ring->ringbuf_port = atoi(port);
*(path) = tmp;
new_rec->rec_ring->ringbuf_url = ref_strdup(url);
new_rec->rec_ring->ringbuf_size = size;
new_rec->rec_ring->ringbuf_fill = fill;
out:
pthread_mutex_unlock(&mutex);
return new_rec;
}
static int
delete_command(cmyth_conn_t control, cmyth_proginfo_t prog, char *cmd)
{
long c = 0;
char *buf;
unsigned int len = ((2 * CMYTH_LONGLONG_LEN) +
(6 * CMYTH_TIMESTAMP_LEN) +
(14 * CMYTH_LONG_LEN));
char start_ts[CMYTH_TIMESTAMP_LEN + 1];
char end_ts[CMYTH_TIMESTAMP_LEN + 1];
char rec_start_ts[CMYTH_TIMESTAMP_LEN + 1];
char rec_end_ts[CMYTH_TIMESTAMP_LEN + 1];
char originalairdate[CMYTH_TIMESTAMP_LEN + 1];
char lastmodified[CMYTH_TIMESTAMP_LEN + 1];
int err;
int count;
long r;
int ret;
if (!prog) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no program info\n",
__FUNCTION__);
return -EINVAL;
}
#define S(a) ((a) == NULL ? "" : (a))
len += strlen(S(prog->proginfo_title));
len += strlen(S(prog->proginfo_subtitle));
len += strlen(S(prog->proginfo_description));
len += strlen(S(prog->proginfo_category));
len += strlen(S(prog->proginfo_chanstr));
len += strlen(S(prog->proginfo_chansign));
len += strlen(S(prog->proginfo_channame));
len += strlen(S(prog->proginfo_url));
len += strlen(S(prog->proginfo_hostname));
len += strlen(S(prog->proginfo_playgroup));
len += strlen(S(prog->proginfo_recpriority_2));
len += strlen(S(prog->proginfo_storagegroup));
buf = alloca(len + 1+2048);
if (!buf) {
return -ENOMEM;
}
if(control->conn_version < 14)
{
cmyth_timestamp_to_string(start_ts, prog->proginfo_start_ts);
cmyth_timestamp_to_string(end_ts, prog->proginfo_end_ts);
cmyth_timestamp_to_string(rec_start_ts,
prog->proginfo_rec_start_ts);
cmyth_timestamp_to_string(rec_end_ts, prog->proginfo_rec_end_ts);
cmyth_timestamp_to_string(originalairdate,
prog->proginfo_originalairdate);
cmyth_timestamp_to_string(lastmodified,
prog->proginfo_lastmodified);
}
else
{
cmyth_datetime_to_string(start_ts, prog->proginfo_start_ts);
cmyth_datetime_to_string(end_ts, prog->proginfo_end_ts);
cmyth_datetime_to_string(rec_start_ts, prog->proginfo_rec_start_ts);
cmyth_datetime_to_string(rec_end_ts, prog->proginfo_rec_end_ts);
cmyth_datetime_to_string(originalairdate,
prog->proginfo_originalairdate);
cmyth_datetime_to_string(lastmodified, prog->proginfo_lastmodified);
}
if(control->conn_version > 32) {
cmyth_timestamp_to_isostring(originalairdate,
prog->proginfo_originalairdate);
}
if(control->conn_version < 12)
{
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: delete not supported with protocol ver %d\n",
__FUNCTION__, control->conn_version);
return -EINVAL;
} else {
sprintf(buf,
"%s 0[]:[]"
"%s[]:[]%s[]:[]%s[]:[]%s[]:[]%ld[]:[]"
"%s[]:[]%s[]:[]%s[]:[]%s[]:[]%ld[]:[]"
"%ld[]:[]%s[]:[]%s[]:[]%s[]:[]%ld[]:[]"
"%ld[]:[]%s[]:[]%ld[]:[]%ld[]:[]%ld[]:[]"
"%s[]:[]%ld[]:[]%ld[]:[]%ld[]:[]%ld[]:[]"
"%ld[]:[]%s[]:[]%s[]:[]%ld[]:[]%ld[]:[]"
"%s[]:[]%s[]:[]%s[]:[]%s[]:[]"
"%s[]:[]%s[]:[]%s[]:[]%s[]:[]",
cmd,
S(prog->proginfo_title),
S(prog->proginfo_subtitle),
S(prog->proginfo_description),
S(prog->proginfo_category),
prog->proginfo_chanId,
S(prog->proginfo_chanstr),
S(prog->proginfo_chansign),
S(prog->proginfo_chanicon),
S(prog->proginfo_url),
(unsigned long)(prog->proginfo_Length >> 32),
(unsigned long)(prog->proginfo_Length & 0xffffffff),
start_ts,
end_ts,
S(prog->proginfo_unknown_0),
prog->proginfo_recording,
prog->proginfo_override,
S(prog->proginfo_hostname),
prog->proginfo_source_id,
prog->proginfo_card_id,
prog->proginfo_input_id,
S(prog->proginfo_rec_priority),
prog->proginfo_rec_status,
prog->proginfo_record_id,
prog->proginfo_rec_type,
prog->proginfo_rec_dups,
prog->proginfo_unknown_1,
rec_start_ts,
rec_end_ts,
prog->proginfo_repeat,
prog->proginfo_program_flags,
S(prog->proginfo_recgroup),
S(prog->proginfo_chancommfree),
S(prog->proginfo_chan_output_filters),
S(prog->proginfo_seriesid),
S(prog->proginfo_programid),
lastmodified,
S(prog->proginfo_stars),
originalairdate);
if (control->conn_version >= 15) {
sprintf(buf + strlen(buf), "%ld[]:[]",
prog->proginfo_hasairdate);
}
if (control->conn_version >= 18) {
sprintf(buf + strlen(buf), "%s[]:[]",
S(prog->proginfo_playgroup));
}
if (control->conn_version >= 25) {
sprintf(buf + strlen(buf), "%s[]:[]",
S(prog->proginfo_recpriority_2));
}
if (control->conn_version >= 31) {
sprintf(buf + strlen(buf), "%ld[]:[]",
prog->proginfo_parentid);
}
if (control->conn_version >= 32) {
sprintf(buf + strlen(buf), "%s[]:[]",
S(prog->proginfo_storagegroup));
}
if (control->conn_version >= 35) {
sprintf(buf + strlen(buf), "%ld[]:[]%ld[]:[]%ld[]:[]",
prog->proginfo_audioproperties,
prog->proginfo_videoproperties,
prog->proginfo_subtitletype);
}
if (control->conn_version >= 41) {
sprintf(buf + strlen(buf), "%s[]:[]",
S(prog->proginfo_prodyear));
}
}
#undef S
pthread_mutex_lock(&mutex);
if ((err = cmyth_send_message(control, buf)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
ret = err;
goto out;
}
count = cmyth_rcv_length(control);
if ((r=cmyth_rcv_long(control, &err, &c, count)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, r);
ret = err;
goto out;
}
/*
* XXX: for some reason, this seems to return an error, even though
* it succeeds...
*/
ret = 0;
out:
pthread_mutex_unlock(&mutex);
return ret;
}
/*
* cmyth_file_seek()
*
* Scope: PUBLIC
*
* Description
*
* Seek to a new position in the file based on the value of whence:
* WHENCE_SET
* The offset is set to offset bytes.
* WHENCE_CUR
* The offset is set to the current position plus offset bytes.
* WHENCE_END
* The offset is set to the size of the file minus offset bytes.
*
* Return Value:
*
* Sucess: 0
*
* Failure: an int containing -errno
*/
int64_t
cmyth_file_seek(cmyth_file_t file, int64_t offset, int8_t whence)
{
char msg[128];
int err;
int count;
int64_t c;
int r;
int64_t ret;
if (file == NULL)
return -EINVAL;
if ((offset == 0) && (whence == WHENCE_CUR))
return file->file_pos;
if ((offset == file->file_pos) && (whence == WHENCE_SET))
return file->file_pos;
pthread_mutex_lock(&mutex);
ret = 0;
while(file->file_pos < file->file_req) {
c = file->file_req - file->file_pos;
if(c > sizeof(msg))
c = sizeof(msg);
if ((ret = cmyth_file_get_block(file, msg, (size_t)c)) < 0)
break;
}
if (ret < 0)
goto out;
if (file->file_control->conn_version >= 66) {
/*
* Since protocol 66 mythbackend expects to receive a single 64 bit integer rather than
* two 32 bit hi and lo integers.
*/
snprintf(msg, sizeof(msg),
"QUERY_FILETRANSFER %"PRIu32"[]:[]SEEK[]:[]%"PRId64"[]:[]%"PRId8"[]:[]%"PRId64,
file->file_id,
offset,
whence,
file->file_pos);
}
else {
snprintf(msg, sizeof(msg),
"QUERY_FILETRANSFER %"PRIu32"[]:[]SEEK[]:[]%"PRId32"[]:[]%"PRId32"[]:[]%"PRId8"[]:[]%"PRId32"[]:[]%"PRId32,
file->file_id,
(int32_t)(offset >> 32),
(int32_t)(offset & 0xffffffff),
whence,
(int32_t)(file->file_pos >> 32),
(int32_t)(file->file_pos & 0xffffffff));
}
if ((err = cmyth_send_message(file->file_control, msg)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
ret = err;
goto out;
}
if ((count=cmyth_rcv_length(file->file_control)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
ret = count;
goto out;
}
if ((r=cmyth_rcv_int64(file->file_control, &err, &c, count)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_int64() failed (%d)\n",
__FUNCTION__, r);
ret = err;
goto out;
}
file->file_pos = c;
file->file_req = file->file_pos;
if(file->file_pos > file->file_length)
file->file_length = file->file_pos;
ret = file->file_pos;
out:
pthread_mutex_unlock(&mutex);
return ret;
}
cmyth_proginfo_t
cmyth_proginfo_get_from_basename(cmyth_conn_t control, const char* basename)
{
int err = 0;
int count, i;
char msg[4096];
char *base;
cmyth_proginfo_t prog = NULL;
cmyth_proglist_t list = NULL;
if (!control) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no connection\n",
__FUNCTION__);
return NULL;
}
/*
* mythbackend doesn't support spaces in basenames
* when doing QUERY_RECORDING. If there are spaces, fallback
* to enumerating all recordings
*/
if(control->conn_version >= 32 && strchr(basename, ' ') == NULL) {
pthread_mutex_lock(&control->conn_mutex);
snprintf(msg, sizeof(msg), "QUERY_RECORDING BASENAME %s",
basename);
if ((err=cmyth_send_message(control, msg)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
goto out;
}
count = cmyth_rcv_length(control);
if (count < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
goto out;
}
i = cmyth_rcv_string(control, &err, msg, sizeof(msg), count);
if (err) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: cmyth_rcv_string() failed\n",
__FUNCTION__);
goto out;
}
count -= i;
if (strcmp(msg, "OK") != 0) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: didn't recieve OK as response\n",
__FUNCTION__);
goto out;
}
prog = cmyth_proginfo_create();
if (cmyth_rcv_proginfo(control, &err, prog, count) != count) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_proginfo() < count\n", __FUNCTION__);
goto out;
}
pthread_mutex_unlock(&control->conn_mutex);
return prog;
out:
pthread_mutex_unlock(&control->conn_mutex);
if(prog)
ref_release(prog);
return NULL;
} else {
list = cmyth_proglist_get_all_recorded(control);
if (!list) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no program list\n",
__FUNCTION__);
}
count = cmyth_proglist_get_count(list);
for (i = 0;i < count; i++) {
prog = cmyth_proglist_get_item(list, i);
if (!prog) {
cmyth_dbg(CMYTH_DBG_DEBUG, "%s: no program info\n",
__FUNCTION__);
continue;
}
base = strrchr(prog->proginfo_pathname, '/');
if (!base || strcmp(base+1, basename) !=0) {
ref_release(prog);
prog = NULL;
continue;
}
break;
}
ref_release(list);
return prog;
}
}
/*
* cmyth_file_read()
*
* Scope: PUBLIC
*
* Description
*
* Request and read a block of data from backend
*
* Return Value:
*
* Sucess: number of bytes transfered
*
* Failure: an int containing -errno
*/
int32_t cmyth_file_read(cmyth_file_t file, char *buf, int32_t len)
{
int err, count;
int32_t ret;
int req, nfds, rec;
char *end, *cur;
char msg[256];
int64_t len64;
struct timeval tv;
fd_set fds;
if (!file || !file->file_data) {
cmyth_dbg (CMYTH_DBG_ERROR, "%s: no connection\n",
__FUNCTION__);
return -EINVAL;
}
if (len == 0)
return 0;
if(len > file->file_data->conn_tcp_rcvbuf)
len = file->file_data->conn_tcp_rcvbuf;
pthread_mutex_lock (&mutex);
/* make sure we have outstanding requests that fill the buffer that was called with */
/* this way we should be able to saturate the network connection better */
if (file->file_req < file->file_pos + len) {
snprintf (msg, sizeof (msg),
"QUERY_FILETRANSFER %"PRIu32"[]:[]REQUEST_BLOCK[]:[]%"PRId32,
file->file_id, (int32_t)(file->file_pos + len - file->file_req));
if ( (err = cmyth_send_message (file->file_control, msg) ) < 0) {
cmyth_dbg (CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
ret = err;
goto out;
}
req = 1;
} else {
req = 0;
}
rec = 0;
cur = buf;
end = buf+len;
while (cur == buf || req || rec) {
if(rec) {
tv.tv_sec = 0;
tv.tv_usec = 0;
} else {
tv.tv_sec = 20;
tv.tv_usec = 0;
}
nfds = 0;
FD_ZERO (&fds);
if (req) {
if ((int)file->file_control->conn_fd > nfds)
nfds = (int)file->file_control->conn_fd;
FD_SET (file->file_control->conn_fd, &fds);
}
if ((int)file->file_data->conn_fd > nfds)
nfds = (int)file->file_data->conn_fd;
FD_SET (file->file_data->conn_fd, &fds);
if ((ret = select (nfds+1, &fds, NULL, NULL,&tv)) < 0) {
cmyth_dbg (CMYTH_DBG_ERROR,
"%s: select(() failed (%d)\n",
__FUNCTION__, ret);
goto out;
}
if (ret == 0 && !rec) {
file->file_control->conn_hang = 1;
file->file_data->conn_hang = 1;
ret = -ETIMEDOUT;
goto out;
}
/* check control connection */
if (FD_ISSET(file->file_control->conn_fd, &fds)) {
if ((count=cmyth_rcv_length (file->file_control)) < 0) {
cmyth_dbg (CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
ret = count;
goto out;
}
/*
* MythTV originally sent back a signed 32bit value but was changed to a
* signed 64bit value in http://svn.mythtv.org/trac/changeset/18011 (1-Aug-2008).
*
* libcmyth now retrieves the 64-bit signed value, does error-checking,
* and then converts to a 32bit signed.
*
* This rcv_ method needs to be forced to use new_int64 to pull back a
* single 64bit number otherwise the handling in rcv_int64 will revert to
* the old two 32bit hi and lo long values.
*/
if ((ret = cmyth_rcv_new_int64(file->file_control, &err, &len64, count, 1))< 0) {
cmyth_dbg (CMYTH_DBG_ERROR,
"%s: cmyth_rcv_new_int64() failed (%d)\n",
__FUNCTION__, ret);
ret = err;
goto out;
}
if (len64 > 0x7fffffff || len64 < 0) {
/* -1 seems to be a common result, but isn't valid so use 0 instead. */
cmyth_dbg (CMYTH_DBG_WARN,
"%s: cmyth_rcv_new_int64() returned out of bound value (%"PRId64"). Using 0 instead.\n",
__FUNCTION__, len64);
len64 = 0;
}
len = (int32_t)len64;
req = 0;
file->file_req += len;
if (file->file_req < file->file_pos) {
cmyth_dbg (CMYTH_DBG_ERROR,
"%s: received invalid invalid length, read position is ahead of request (req: %"PRId64", pos: %"PRId64", len: %"PRId64")\n",
__FUNCTION__, file->file_req, file->file_pos, len64);
ret = -1;
goto out;
}
/* check if we are already done */
if (file->file_pos == file->file_req)
break;
}
/* restore direct request fleg */
rec = 0;
/* check data connection */
if (FD_ISSET(file->file_data->conn_fd, &fds)) {
if (end < cur) {
cmyth_dbg (CMYTH_DBG_ERROR,
"%s: positions invalid on read, bailing out (cur: %x, end: %x)\n",
__FUNCTION__, cur, end);
ret = -1;
goto out;
}
if ((ret = recv (file->file_data->conn_fd, cur, (int32_t)(end - cur), 0)) < 0) {
cmyth_dbg (CMYTH_DBG_ERROR,
"%s: recv() failed (%d)\n",
__FUNCTION__, ret);
goto out;
}
cur += ret;
file->file_pos += ret;
if(ret)
rec = 1; /* attempt to read directly again to get all queued packets */
}
}
/* make sure file grows, as we move past length */
if (file->file_pos > file->file_length)
file->file_length = file->file_pos;
ret = (int32_t)(cur - buf);
out:
pthread_mutex_unlock (&mutex);
return ret;
}
cmyth_proginfo_t
cmyth_proginfo_get_from_timeslot(cmyth_conn_t control, uint32_t chanid, const cmyth_timestamp_t recstartts)
{
int err = 0;
int count, i;
char msg[4096];
cmyth_proginfo_t prog = NULL;
cmyth_proglist_t list = NULL;
char time[15];
if (!control) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no connection\n",
__FUNCTION__);
return NULL;
}
if ((err = cmyth_timestamp_to_numstring(time, recstartts)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: cmyth_timestamp_to_numstring() failed (%d)\n",
__FUNCTION__, err);
return NULL;
}
if(control->conn_version >= 32) {
pthread_mutex_lock(&control->conn_mutex);
snprintf(msg, sizeof(msg), "QUERY_RECORDING TIMESLOT %"PRIu32" %s",
chanid, time);
if ((err=cmyth_send_message(control, msg)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
goto out;
}
count = cmyth_rcv_length(control);
if (count < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
goto out;
}
i = cmyth_rcv_string(control, &err, msg, sizeof(msg), count);
if (err) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: cmyth_rcv_string() failed\n",
__FUNCTION__);
goto out;
}
count -= i;
if (strcmp(msg, "OK") != 0) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: didn't recieve OK as response\n",
__FUNCTION__);
goto out;
}
prog = cmyth_proginfo_create();
if (cmyth_rcv_proginfo(control, &err, prog, count) != count) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_proginfo() < count\n", __FUNCTION__);
goto out;
}
pthread_mutex_unlock(&control->conn_mutex);
return prog;
out:
pthread_mutex_unlock(&control->conn_mutex);
if(prog)
ref_release(prog);
return NULL;
} else {
list = cmyth_proglist_get_all_recorded(control);
if (!list) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no program list\n",
__FUNCTION__);
}
count = cmyth_proglist_get_count(list);
for (i = 0;i < count; i++) {
prog = cmyth_proglist_get_item(list, i);
if (!prog) {
cmyth_dbg(CMYTH_DBG_DEBUG, "%s: no program info\n",
__FUNCTION__);
continue;
}
if (cmyth_timestamp_compare(prog->proginfo_rec_start_ts, recstartts) != 0 ||
prog->proginfo_chanId != chanid) {
ref_release(prog);
prog = NULL;
continue;
}
break;
}
ref_release(list);
return prog;
}
}
static int
proginfo_command(cmyth_conn_t control, cmyth_proginfo_t prog, char *cmd,
long *result)
{
long c = 0;
char *buf;
unsigned int len = ((2 * CMYTH_LONGLONG_LEN) +
(6 * CMYTH_TIMESTAMP_LEN) +
(16 * CMYTH_LONG_LEN));
char start_ts[CMYTH_TIMESTAMP_LEN + 1];
char end_ts[CMYTH_TIMESTAMP_LEN + 1];
char rec_start_ts[CMYTH_TIMESTAMP_LEN + 1];
char rec_end_ts[CMYTH_TIMESTAMP_LEN + 1];
char originalairdate[CMYTH_TIMESTAMP_LEN + 1];
char lastmodified[CMYTH_TIMESTAMP_LEN + 1];
int err = 0;
int count = 0;
long r = 0;
int ret = 0;
if (!prog) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no program info\n",
__FUNCTION__);
return -EINVAL;
}
len += strlen(prog->proginfo_title);
len += strlen(prog->proginfo_subtitle);
len += strlen(prog->proginfo_description);
len += strlen(prog->proginfo_category);
len += strlen(prog->proginfo_chanstr);
len += strlen(prog->proginfo_chansign);
len += strlen(prog->proginfo_channame);
len += strlen(prog->proginfo_url);
len += strlen(prog->proginfo_hostname);
len += strlen(prog->proginfo_playgroup);
len += strlen(prog->proginfo_seriesid);
len += strlen(prog->proginfo_programid);
if (prog->proginfo_inetref) {
len += strlen(prog->proginfo_inetref);
}
if (prog->proginfo_recpriority_2) {
len += strlen(prog->proginfo_recpriority_2);
}
if (prog->proginfo_storagegroup) {
len += strlen(prog->proginfo_storagegroup);
}
buf = alloca(len + 1+2048);
if (!buf) {
return -ENOMEM;
}
if(control->conn_version < 14)
{
cmyth_timestamp_to_string(start_ts, prog->proginfo_start_ts);
cmyth_timestamp_to_string(end_ts, prog->proginfo_end_ts);
cmyth_timestamp_to_string(rec_start_ts,
prog->proginfo_rec_start_ts);
cmyth_timestamp_to_string(rec_end_ts, prog->proginfo_rec_end_ts);
cmyth_timestamp_to_string(originalairdate,
prog->proginfo_originalairdate);
cmyth_timestamp_to_string(lastmodified,
prog->proginfo_lastmodified);
}
else
{
cmyth_datetime_to_string(start_ts, prog->proginfo_start_ts);
cmyth_datetime_to_string(end_ts, prog->proginfo_end_ts);
cmyth_datetime_to_string(rec_start_ts, prog->proginfo_rec_start_ts);
cmyth_datetime_to_string(rec_end_ts, prog->proginfo_rec_end_ts);
cmyth_datetime_to_string(originalairdate,
prog->proginfo_originalairdate);
cmyth_datetime_to_string(lastmodified, prog->proginfo_lastmodified);
}
if(control->conn_version > 32) {
cmyth_timestamp_to_isostring(originalairdate,
prog->proginfo_originalairdate);
}
if(control->conn_version < 12)
{
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: delete not supported with protocol ver %d\n",
__FUNCTION__, control->conn_version);
return -EINVAL;
}
sprintf(buf, "%s 0[]:[]", cmd);
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_title);
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_subtitle);
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_description);
if (control->conn_version >= 67) {
sprintf(buf + strlen(buf), "%u[]:[]", prog->proginfo_season);
sprintf(buf + strlen(buf), "%u[]:[]", prog->proginfo_episode);
}
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_category);
sprintf(buf + strlen(buf), "%ld[]:[]", prog->proginfo_chanId);
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_chanstr);
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_chansign);
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_channame);
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_url);
if (control->conn_version >= 57) {
sprintf(buf + strlen(buf), "%"PRId64"[]:[]", prog->proginfo_Length);
} else {
sprintf(buf + strlen(buf), "%d[]:[]", (int32_t)(prog->proginfo_Length >> 32));
sprintf(buf + strlen(buf), "%d[]:[]", (int32_t)(prog->proginfo_Length & 0xffffffff));
}
sprintf(buf + strlen(buf), "%s[]:[]", start_ts);
sprintf(buf + strlen(buf), "%s[]:[]", end_ts);
if (control->conn_version < 57) {
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_unknown_0); // "duplicate"
sprintf(buf + strlen(buf), "%ld[]:[]", 0L); // "shareable"
}
sprintf(buf + strlen(buf), "%ld[]:[]", 0L); // "findid"
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_hostname);
sprintf(buf + strlen(buf), "%ld[]:[]", prog->proginfo_source_id);
sprintf(buf + strlen(buf), "%ld[]:[]", prog->proginfo_card_id);
sprintf(buf + strlen(buf), "%ld[]:[]", prog->proginfo_input_id);
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_rec_priority);
sprintf(buf + strlen(buf), "%ld[]:[]", prog->proginfo_rec_status);
sprintf(buf + strlen(buf), "%ld[]:[]", prog->proginfo_record_id);
sprintf(buf + strlen(buf), "%ld[]:[]", prog->proginfo_rec_type);
sprintf(buf + strlen(buf), "%ld[]:[]", prog->proginfo_rec_dups);
sprintf(buf + strlen(buf), "%ld[]:[]", prog->proginfo_unknown_1); // "dupmethod"
sprintf(buf + strlen(buf), "%s[]:[]", rec_start_ts);
sprintf(buf + strlen(buf), "%s[]:[]", rec_end_ts);
if (control->conn_version < 57) {
sprintf(buf + strlen(buf), "%ld[]:[]", prog->proginfo_repeat);
}
sprintf(buf + strlen(buf), "%ld[]:[]", prog->proginfo_program_flags);
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_recgroup);
if (control->conn_version < 57) {
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_chancommfree);
}
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_chan_output_filters);
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_seriesid);
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_programid);
if (control->conn_version >= 67) {
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_inetref);
}
sprintf(buf + strlen(buf), "%s[]:[]", lastmodified);
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_stars);
sprintf(buf + strlen(buf), "%s[]:[]", originalairdate);
if (control->conn_version >= 15 && control->conn_version < 57) {
sprintf(buf + strlen(buf), "%ld[]:[]", prog->proginfo_hasairdate);
}
if (control->conn_version >= 18) {
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_playgroup);
}
if (control->conn_version >= 25) {
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_recpriority_2);
}
if (control->conn_version >= 31) {
sprintf(buf + strlen(buf), "%ld[]:[]", prog->proginfo_parentid);
}
if (control->conn_version >= 32) {
sprintf(buf + strlen(buf), "%s[]:[]", prog->proginfo_storagegroup);
}
if (control->conn_version >= 35) {
sprintf(buf + strlen(buf), "%ld[]:[]", prog->proginfo_audioproperties);
sprintf(buf + strlen(buf), "%ld[]:[]", prog->proginfo_videoproperties);
sprintf(buf + strlen(buf), "%ld[]:[]", prog->proginfo_subtitletype);
}
if (control->conn_version >= 43) {
sprintf(buf + strlen(buf), "%d[]:[]", prog->proginfo_year);
}
pthread_mutex_lock(&control->conn_mutex);
if ((err = cmyth_send_message(control, buf)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
ret = err;
goto out;
}
count = cmyth_rcv_length(control);
if ((r=cmyth_rcv_long(control, &err, &c, count)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, r);
ret = err;
goto out;
}
if (result) {
*result = c;
}
out:
pthread_mutex_unlock(&control->conn_mutex);
return ret;
}
/*
* cmyth_proginfo_stop_recording()
*
* Scope: PUBLIC
*
* Description
*
* Make a request on the control connection 'control' to ask the
* MythTV back end to stop recording the program described in 'prog'.
*
* Return Value:
*
* Success: 0
*
* Failure: -(ERRNO)
*/
int
cmyth_proginfo_stop_recording(cmyth_conn_t control, cmyth_proginfo_t prog)
{
int32_t c = 0;
int err = 0;
int count = 0;
int r = 0;
int ret = 0;
char *buf;
char *proginfo;
if (!control) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no connection\n",
__FUNCTION__);
return -EINVAL;
}
if (control->conn_version < 12)
{
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: stop not supported with protocol ver %d\n",
__FUNCTION__, control->conn_version);
return -EINVAL;
}
proginfo = cmyth_proginfo_string(control, prog);
if (proginfo == NULL) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: program_info failed.\n",
__FUNCTION__);
return -EINVAL;
}
buf = malloc(strlen(proginfo) + 21 + 1);
if (!buf) {
free(proginfo);
return -ENOMEM;
}
sprintf(buf, "STOP_RECORDING 0[]:[]%s", proginfo);
free(proginfo);
pthread_mutex_lock(&control->conn_mutex);
if ((err = cmyth_send_message(control, buf)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
ret = err;
goto out;
}
count = cmyth_rcv_length(control);
if ((r = cmyth_rcv_int32(control, &err, &c, count)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, r);
ret = err;
goto out;
}
out:
pthread_mutex_unlock(&control->conn_mutex);
free(buf);
return ret;
}
/*
* cmyth_conn_get_free_recorder(cmyth_conn_t control, cmyth_recorder_t rec)
*
*
* Scope: PUBLIC
*
* Description
*
* Obtain the next available free recorder the connection specified by
* 'control'. This fills out the recorder structure specified by 'rec'.
*
* Return Value:
*
* Success: 0 for not complete, 1 for complete
*
* Failure: -(errno)
*/
cmyth_recorder_t
cmyth_conn_get_free_recorder(cmyth_conn_t conn)
{
int err, count;
int r;
long port, id;
char msg[256];
char reply[256];
cmyth_recorder_t rec = NULL;
if (!conn) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: no connection\n",
__FUNCTION__);
return NULL;
}
pthread_mutex_lock(&mutex);
if ((rec=cmyth_recorder_create()) == NULL)
goto fail;
snprintf(msg, sizeof(msg), "GET_FREE_RECORDER");
if ((err = cmyth_send_message(conn, msg)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
goto fail;
}
count = cmyth_rcv_length(conn);
if (count < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
goto fail;
}
if ((r=cmyth_rcv_long(conn, &err, &id, count)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_long() failed (%d)\n",
__FUNCTION__, r);
goto fail;
}
count -= r;
if ((r=cmyth_rcv_string(conn, &err,
reply, sizeof(reply)-1, count)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_string() failed (%d)\n",
__FUNCTION__, r);
goto fail;
}
count -= r;
if ((r=cmyth_rcv_long(conn, &err, &port, count)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_long() failed (%d)\n",
__FUNCTION__, r);
goto fail;
}
if (port == -1)
goto fail;
rec->rec_id = id;
rec->rec_server = ref_strdup(reply);
rec->rec_port = port;
if (cmyth_conn_connect_recorder(rec, conn->conn_buflen,
conn->conn_tcp_rcvbuf) < 0)
goto fail;
pthread_mutex_unlock(&mutex);
return rec;
fail:
if (rec)
ref_release(rec);
pthread_mutex_unlock(&mutex);
return NULL;
}
/*
* cmyth_file_seek(cmyth_file_t file, long long offset, int whence)
*
* Scope: PUBLIC
*
* Description
*
* Seek to a new position in the file based on the value of whence:
* SEEK_SET
* The offset is set to offset bytes.
* SEEK_CUR
* The offset is set to the current position plus offset bytes.
* SEEK_END
* The offset is set to the size of the file minus offset bytes.
*
* Return Value:
*
* Sucess: 0
*
* Failure: an int containing -errno
*/
long long
cmyth_file_seek(cmyth_file_t file, long long offset, int whence)
{
char msg[128];
int err;
int count;
long long c;
long r;
long long ret;
if (file == NULL)
return -EINVAL;
if ((offset == 0) && (whence == SEEK_CUR))
return file->file_pos;
pthread_mutex_lock(&mutex);
snprintf(msg, sizeof(msg),
"QUERY_FILETRANSFER %ld[]:[]SEEK[]:[]%d[]:[]%d[]:[]%d[]:[]%d[]:[]%d",
file->file_id,
(int32_t)(offset >> 32),
(int32_t)(offset & 0xffffffff),
whence,
(int32_t)(file->file_pos >> 32),
(int32_t)(file->file_pos & 0xffffffff));
if ((err = cmyth_send_message(file->file_control, msg)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
ret = err;
goto out;
}
if ((count=cmyth_rcv_length(file->file_control)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
ret = count;
goto out;
}
if ((r=cmyth_rcv_long_long(file->file_control, &err, &c, count)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_long_long() failed (%d)\n",
__FUNCTION__, r);
ret = err;
goto out;
}
switch (whence) {
case SEEK_SET:
file->file_pos = offset;
break;
case SEEK_CUR:
file->file_pos += offset;
break;
case SEEK_END:
file->file_pos = file->file_length - offset;
break;
}
ret = file->file_pos;
out:
pthread_mutex_unlock(&mutex);
return ret;
}
/*
* cmyth_conn_connect_file(char *server, unsigned short port, unsigned buflen
* cmyth_proginfo_t prog)
*
* Scope: PUBLIC
*
* Description:
*
* Create a file structure containing a data connection for use
* transfering a file within the MythTV protocol. Return a pointer to
* the newly created file structure. The connection in the file
* structure is returned held as is the file structure itself. The
* connection will be released when the file structure is released.
* The file structure can be released using ref_release().
*
* Return Value:
*
* Success: Non-NULL cmyth_file_t (this is a pointer type)
*
* Failure: NULL cmyth_file_t
*/
cmyth_file_t
cmyth_conn_connect_file(cmyth_proginfo_t prog, cmyth_conn_t control,
unsigned buflen, int tcp_rcvbuf)
{
cmyth_conn_t conn = NULL;
char *announcement = NULL;
char *myth_host = NULL;
char reply[16];
int err = 0;
int count = 0;
int r;
int ann_size = sizeof("ANN FileTransfer []:[][]:[]");
cmyth_file_t ret = NULL;
if (!prog) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: prog is NULL\n", __FUNCTION__);
goto shut;
}
if (!prog->proginfo_host) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: prog host is NULL\n",
__FUNCTION__);
goto shut;
}
if (!prog->proginfo_pathname) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: prog has no pathname in it\n",
__FUNCTION__);
goto shut;
}
ret = cmyth_file_create(control);
if (!ret) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: cmyth_file_create() failed\n",
__FUNCTION__);
goto shut;
}
cmyth_dbg(CMYTH_DBG_PROTO, "%s: connecting data connection\n",
__FUNCTION__);
if (control->conn_version >= 17) {
myth_host = cmyth_conn_get_setting_unlocked(control, prog->proginfo_host,
"BackendServerIP");
}
if (!myth_host) {
cmyth_dbg(CMYTH_DBG_PROTO,
"%s: BackendServerIP setting not found. Using proginfo_host: %s\n",
__FUNCTION__, prog->proginfo_host);
myth_host = ref_alloc(strlen(prog->proginfo_host) + 1);
strcpy(myth_host, prog->proginfo_host);
}
conn = cmyth_connect(myth_host, prog->proginfo_port,
buflen, tcp_rcvbuf);
cmyth_dbg(CMYTH_DBG_PROTO,
"%s: done connecting data connection, conn = %d\n",
__FUNCTION__, conn);
if (!conn) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_connect(%s, %d, %d) failed\n",
__FUNCTION__,
myth_host, prog->proginfo_port, buflen);
goto shut;
}
ann_size += strlen(prog->proginfo_pathname) + strlen(my_hostname);
announcement = malloc(ann_size);
if (!announcement) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: malloc(%d) failed for announcement\n",
__FUNCTION__, ann_size);
goto shut;
}
if (control->conn_version >= 44) {
sprintf(announcement, "ANN FileTransfer %s[]:[]%s[]:[]",
my_hostname, prog->proginfo_pathname);
}
else {
sprintf(announcement, "ANN FileTransfer %s[]:[]%s",
my_hostname, prog->proginfo_pathname);
}
if (cmyth_send_message(conn, announcement) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message('%s') failed\n",
__FUNCTION__, announcement);
goto shut;
}
ret->file_data = ref_hold(conn);
count = cmyth_rcv_length(conn);
if (count < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
goto shut;
}
reply[sizeof(reply) - 1] = '\0';
r = cmyth_rcv_string(conn, &err, reply, sizeof(reply) - 1, count);
if (err != 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_string() failed (%d)\n",
__FUNCTION__, err);
goto shut;
}
if (strcmp(reply, "OK") != 0) {
cmyth_dbg(CMYTH_DBG_ERROR, "%s: reply ('%s') is not 'OK'\n",
__FUNCTION__, reply);
goto shut;
}
count -= r;
r = cmyth_rcv_long(conn, &err, &ret->file_id, count);
if (err) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: (id) cmyth_rcv_long() failed (%d)\n",
__FUNCTION__, err);
goto shut;
}
count -= r;
r = cmyth_rcv_u_long_long(conn, &err, &ret->file_length, count);
if (err) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: (length) cmyth_rcv_longlong() failed (%d)\n",
__FUNCTION__, err);
goto shut;
}
count -= r;
free(announcement);
ref_release(conn);
ref_release(myth_host);
return ret;
shut:
if (announcement) {
free(announcement);
}
ref_release(ret);
ref_release(conn);
ref_release(myth_host);
return NULL;
}
/*
* cmyth_file_seek(cmyth_file_t file, long long offset, int whence)
*
* Scope: PUBLIC
*
* Description
*
* Seek to a new position in the file based on the value of whence:
* SEEK_SET
* The offset is set to offset bytes.
* SEEK_CUR
* The offset is set to the current position plus offset bytes.
* SEEK_END
* The offset is set to the size of the file minus offset bytes.
*
* Return Value:
*
* Sucess: 0
*
* Failure: an int containing -errno
*/
long long
cmyth_file_seek(cmyth_file_t file, long long offset, int whence)
{
char msg[128];
int err;
int count;
int64_t c;
long r;
long long ret;
if (file == NULL)
return -EINVAL;
if ((offset == 0) && (whence == SEEK_CUR))
return file->file_pos;
if ((offset == file->file_pos) && (whence == SEEK_SET))
return file->file_pos;
while(file->file_pos < file->file_req) {
c = file->file_req - file->file_pos;
if(c > sizeof(msg))
c = sizeof(msg);
if (cmyth_file_get_block(file, msg, (unsigned long)c) < 0)
return -1;
}
pthread_mutex_lock(&mutex);
if (file->file_control->conn_version >= 66) {
/*
* Since protocol 66 mythbackend expects to receive a single 64 bit integer rather than
* two 32 bit hi and lo integers.
*/
snprintf(msg, sizeof(msg),
"QUERY_FILETRANSFER %ld[]:[]SEEK[]:[]%"PRIu64"[]:[]%d[]:[]%"PRIu64,
file->file_id,
(int64_t)offset,
whence,
(int64_t)file->file_pos);
}
else {
snprintf(msg, sizeof(msg),
"QUERY_FILETRANSFER %ld[]:[]SEEK[]:[]%d[]:[]%d[]:[]%d[]:[]%d[]:[]%d",
file->file_id,
(int32_t)(offset >> 32),
(int32_t)(offset & 0xffffffff),
whence,
(int32_t)(file->file_pos >> 32),
(int32_t)(file->file_pos & 0xffffffff));
}
if ((err = cmyth_send_message(file->file_control, msg)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_send_message() failed (%d)\n",
__FUNCTION__, err);
ret = err;
goto out;
}
if ((count=cmyth_rcv_length(file->file_control)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_length() failed (%d)\n",
__FUNCTION__, count);
ret = count;
goto out;
}
if ((r=cmyth_rcv_int64(file->file_control, &err, &c, count)) < 0) {
cmyth_dbg(CMYTH_DBG_ERROR,
"%s: cmyth_rcv_int64() failed (%d)\n",
__FUNCTION__, r);
ret = err;
goto out;
}
switch (whence) {
case SEEK_SET:
file->file_pos = offset;
break;
case SEEK_CUR:
file->file_pos += offset;
break;
case SEEK_END:
file->file_pos = file->file_length - offset;
break;
}
file->file_req = file->file_pos;
if(file->file_pos > file->file_length)
file->file_length = file->file_pos;
ret = file->file_pos;
out:
pthread_mutex_unlock(&mutex);
return ret;
}