version 1.3.12.1, 2022/09/14 21:44:21
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version 1.3.12.4, 2022/09/16 04:14:03
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Line 51 SUCH DAMAGE.
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Line 51 SUCH DAMAGE.
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* |
* |
* @Topics = MQTT subscription topics |
* @Topics = MQTT subscription topics |
* @msgID = MessageID |
* @msgID = MessageID |
* @Dup = Duplicate message |
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* @QOS = QoS |
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* return: NULL error or allocated SUBSCRIBE message |
* return: NULL error or allocated SUBSCRIBE message |
*/ |
*/ |
mqtt_msg_t * |
mqtt_msg_t * |
mqtt_msgSUBSCRIBE(mqtt_subscr_t ** __restrict Topics, u_short msgID, | mqtt_msgSUBSCRIBE(mqtt_subscr_t * __restrict Topics, u_short msgID) |
u_char Dup, u_char QOS) | |
{ |
{ |
int len, siz; |
int len, siz; |
u_int n, *l; |
u_int n, *l; |
Line 65 mqtt_msgSUBSCRIBE(mqtt_subscr_t ** __restrict Topics,
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Line 62 mqtt_msgSUBSCRIBE(mqtt_subscr_t ** __restrict Topics,
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mqtthdr_var_t *topic; |
mqtthdr_var_t *topic; |
mqtt_len_t *mid; |
mqtt_len_t *mid; |
mqtt_subscr_t *t; |
mqtt_subscr_t *t; |
u_char *qos; |
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void *data; |
void *data; |
mqtt_msg_t *msg = NULL; |
mqtt_msg_t *msg = NULL; |
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if (!Topics || !*Topics) | if (!Topics) |
return NULL; |
return NULL; |
if (QOS > MQTT_QOS_EXACTLY) { | if (!msgID) { |
mqtt_SetErr(EINVAL, "Invalid QoS parameter"); | |
return NULL; | |
} | |
if (!msgID && QOS != MQTT_QOS_ONCE) { | |
mqtt_SetErr(EINVAL, "Invalid MessageID parameter must be >0"); |
mqtt_SetErr(EINVAL, "Invalid MessageID parameter must be >0"); |
return NULL; |
return NULL; |
} |
} |
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/* calculate message size */ |
/* calculate message size */ |
len = sizeof(mqtt_len_t); /* msgid */ |
len = sizeof(mqtt_len_t); /* msgid */ |
for (t = *Topics; t && t->sub_topic.msg_base; t++) /* subscribes & qos */ | for (t = Topics; t && t->sub_topic.msg_base; t++) /* subscribes & qos */ |
len += sizeof(mqtt_len_t) + t->sub_topic.msg_len; | len += sizeof(mqtt_len_t) + t->sub_topic.msg_len + 1; |
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/* calculate header size */ |
/* calculate header size */ |
siz = sizeof(struct mqtthdr); /* mqtt fixed header */ |
siz = sizeof(struct mqtthdr); /* mqtt fixed header */ |
Line 99 mqtt_msgSUBSCRIBE(mqtt_subscr_t ** __restrict Topics,
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Line 91 mqtt_msgSUBSCRIBE(mqtt_subscr_t ** __restrict Topics,
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/* fixed header */ |
/* fixed header */ |
hdr->mqtt_msg.type = MQTT_TYPE_SUBSCRIBE; |
hdr->mqtt_msg.type = MQTT_TYPE_SUBSCRIBE; |
hdr->mqtt_msg.qos = QOS; | hdr->mqtt_msg.qos = MQTT_QOS_ACK; |
hdr->mqtt_msg.dup = Dup ? 1 : 0; | |
hdr->mqtt_msg.retain = 0; | |
l = (u_int*) hdr->mqtt_len; |
l = (u_int*) hdr->mqtt_len; |
*l = n; |
*l = n; |
data += siz; |
data += siz; |
Line 112 mqtt_msgSUBSCRIBE(mqtt_subscr_t ** __restrict Topics,
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Line 102 mqtt_msgSUBSCRIBE(mqtt_subscr_t ** __restrict Topics,
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data += sizeof(mqtt_len_t); |
data += sizeof(mqtt_len_t); |
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/* payload with subscriptions */ |
/* payload with subscriptions */ |
for (t = *Topics; t && t->sub_topic.msg_base; t++) { | for (t = Topics; t && t->sub_topic.msg_base; t++) { |
topic = (mqtthdr_var_t*) data; |
topic = (mqtthdr_var_t*) data; |
topic->var_sb.val = htons(t->sub_topic.msg_len); |
topic->var_sb.val = htons(t->sub_topic.msg_len); |
memcpy(topic->var_data, t->sub_topic.msg_base, ntohs(topic->var_sb.val)); |
memcpy(topic->var_data, t->sub_topic.msg_base, ntohs(topic->var_sb.val)); |
data += MQTTHDR_VAR_SIZEOF(topic); |
data += MQTTHDR_VAR_SIZEOF(topic); |
qos = data++; | *((char*) data) = t->sub_qos; |
*qos = t->sub_ret; | data++; |
} |
} |
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return msg; |
return msg; |
Line 132 mqtt_msgSUBSCRIBE(mqtt_subscr_t ** __restrict Topics,
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Line 122 mqtt_msgSUBSCRIBE(mqtt_subscr_t ** __restrict Topics,
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* return: NULL error or allocated SUBACK message |
* return: NULL error or allocated SUBACK message |
*/ |
*/ |
mqtt_msg_t * |
mqtt_msg_t * |
mqtt_msgSUBACK(mqtt_subscr_t ** __restrict Topics, u_short msgID) | mqtt_msgSUBACK(mqtt_subscr_t * __restrict Topics, u_short msgID) |
{ |
{ |
int siz = 0; |
int siz = 0; |
struct mqtthdr *hdr; |
struct mqtthdr *hdr; |
Line 141 mqtt_msgSUBACK(mqtt_subscr_t ** __restrict Topics, u_s
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Line 131 mqtt_msgSUBACK(mqtt_subscr_t ** __restrict Topics, u_s
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u_char *qos; |
u_char *qos; |
mqtt_msg_t *msg = NULL; |
mqtt_msg_t *msg = NULL; |
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if (!Topics || !*Topics) | if (!Topics) |
return NULL; |
return NULL; |
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if (!(msg = mqtt_msgAlloc(MQTTMSG_MAX))) |
if (!(msg = mqtt_msgAlloc(MQTTMSG_MAX))) |
Line 157 mqtt_msgSUBACK(mqtt_subscr_t ** __restrict Topics, u_s
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Line 147 mqtt_msgSUBACK(mqtt_subscr_t ** __restrict Topics, u_s
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v->val = htons(msgID); |
v->val = htons(msgID); |
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/* QoS payload from subscriptions */ |
/* QoS payload from subscriptions */ |
for (t = *Topics; t && t->sub_topic.msg_base; t++, siz++) { | for (t = Topics; t && t->sub_topic.msg_base; t++, siz++) { |
qos = (msg->msg_base + siz); |
qos = (msg->msg_base + siz); |
*qos = t->sub_ret; | *qos = t->sub_qos; |
} |
} |
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/* fixed header */ |
/* fixed header */ |
Line 179 mqtt_msgSUBACK(mqtt_subscr_t ** __restrict Topics, u_s
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Line 169 mqtt_msgSUBACK(mqtt_subscr_t ** __restrict Topics, u_s
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* return: NULL error or allocated UNSUBSCRIBE message |
* return: NULL error or allocated UNSUBSCRIBE message |
*/ |
*/ |
mqtt_msg_t * |
mqtt_msg_t * |
mqtt_msgUNSUBSCRIBE(mqtt_subscr_t ** __restrict Topics, u_short msgID, | mqtt_msgUNSUBSCRIBE(mqtt_subscr_t * __restrict Topics, u_short msgID, |
u_char Dup, u_char QOS) |
u_char Dup, u_char QOS) |
{ |
{ |
int len, siz = 0; |
int len, siz = 0; |
Line 191 mqtt_msgUNSUBSCRIBE(mqtt_subscr_t ** __restrict Topics
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Line 181 mqtt_msgUNSUBSCRIBE(mqtt_subscr_t ** __restrict Topics
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void *data; |
void *data; |
mqtt_msg_t *msg = NULL; |
mqtt_msg_t *msg = NULL; |
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if (!Topics || !*Topics) | if (!Topics) |
return NULL; |
return NULL; |
if (QOS > MQTT_QOS_EXACTLY) { |
if (QOS > MQTT_QOS_EXACTLY) { |
mqtt_SetErr(EINVAL, "Invalid QoS parameter"); |
mqtt_SetErr(EINVAL, "Invalid QoS parameter"); |
Line 204 mqtt_msgUNSUBSCRIBE(mqtt_subscr_t ** __restrict Topics
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Line 194 mqtt_msgUNSUBSCRIBE(mqtt_subscr_t ** __restrict Topics
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/* calculate message size */ |
/* calculate message size */ |
len = sizeof(mqtt_len_t); /* msgid */ |
len = sizeof(mqtt_len_t); /* msgid */ |
for (t = *Topics; t && t->sub_topic.msg_base; t++) /* subscribes */ | for (t = Topics; t && t->sub_topic.msg_base; t++) /* subscribes */ |
len += sizeof(mqtt_len_t) + t->sub_topic.msg_len; |
len += sizeof(mqtt_len_t) + t->sub_topic.msg_len; |
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/* calculate header size */ |
/* calculate header size */ |
Line 234 mqtt_msgUNSUBSCRIBE(mqtt_subscr_t ** __restrict Topics
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Line 224 mqtt_msgUNSUBSCRIBE(mqtt_subscr_t ** __restrict Topics
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data += sizeof(mqtt_len_t); |
data += sizeof(mqtt_len_t); |
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/* payload with subscriptions */ |
/* payload with subscriptions */ |
for (t = *Topics; t && t->sub_topic.msg_base; t++) { | for (t = Topics; t && t->sub_topic.msg_base; t++) { |
topic = (mqtthdr_var_t*) data; |
topic = (mqtthdr_var_t*) data; |
topic->var_sb.val = htons(t->sub_topic.msg_len); |
topic->var_sb.val = htons(t->sub_topic.msg_len); |
memcpy(topic->var_data, t->sub_topic.msg_base, ntohs(topic->var_sb.val)); |
memcpy(topic->var_data, t->sub_topic.msg_base, ntohs(topic->var_sb.val)); |
Line 273 mqtt_msgUNSUBACK(u_short msgID)
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Line 263 mqtt_msgUNSUBACK(u_short msgID)
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return msg; |
return msg; |
} |
} |
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/* ============= decode ============ */ |
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#if 0 |
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/* |
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* mqtt_readSUBSCRIBE() Read SUBSCRIBE message |
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* |
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* @buf = Message buffer |
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* @msgID = MessageID |
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* @subscr = Subscriptions, must be free after use with mqtt_subFree() |
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* return: -1 error or >-1 elements into subscr |
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*/ |
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int |
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mqtt_readSUBSCRIBE(mqtt_msg_t * __restrict buf, u_short *msgID, mqtt_subscr_t **subscr) |
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{ |
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register int i; |
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int len, ret; |
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struct mqtthdr *hdr; |
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mqtthdr_var_t *var; |
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mqtt_subscr_t *subs; |
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mqtt_len_t *v; |
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caddr_t pos; |
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if (!buf || !msgID || !subscr) |
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return -1; |
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hdr = _mqtt_readHEADER(buf, MQTT_TYPE_SUBSCRIBE, &ret, &len); |
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if (!hdr) |
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return -1; |
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pos = buf->msg_base + ret + 1; |
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v = (mqtt_len_t*) pos; |
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/* MessageID */ |
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len -= sizeof(mqtt_len_t); |
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if (len < 0) { |
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mqtt_SetErr(EINVAL, "Short message length %d", len); |
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return -1; |
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} else { |
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*msgID = ntohs(v->val); |
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pos += sizeof(mqtt_len_t); |
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} |
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subs = mqtt_subAlloc(0); |
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if (!subs) |
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return -1; |
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else |
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*subscr = subs; |
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/* Subscribes */ |
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for (i = 0; len > 0; i++) { |
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var = (mqtthdr_var_t*) pos; |
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len -= MQTTHDR_VAR_SIZEOF(var) + 1; |
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if (len < 0) { |
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mqtt_subFree(subscr); |
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mqtt_SetErr(EINVAL, "Short message length %d", len); |
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return -1; |
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} |
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if (!mqtt_subRealloc(&subs, i + 1)) { |
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mqtt_subFree(subscr); |
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return -1; |
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} else |
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*subscr = subs; |
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memset(&subs[i], 0, sizeof subs[i]); |
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subs[i].sub_topic.msg_len = ntohs(var->var_sb.val); |
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subs[i].sub_topic.msg_base = malloc(subs[i].sub_topic.msg_len + 1); |
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if (!subs[i].sub_topic.msg_base) { |
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LOGERR; |
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mqtt_subFree(subscr); |
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return -1; |
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} else { |
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memcpy(subs[i].sub_topic.msg_base, var->var_data, subs[i].sub_topic.msg_len); |
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((char*) subs[i].sub_topic.msg_base)[subs[i].sub_topic.msg_len] = 0; |
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} |
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pos += MQTTHDR_VAR_SIZEOF(var); |
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subs[i].sub_ret = *pos; |
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pos++; |
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} |
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return i; |
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} |
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/* |
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* mqtt_readSUBACK() Read SUBACK message |
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* |
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* @buf = Message buffer |
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* @msgID = MessageID |
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* @subqos = Subscribes QoS, must be free after use with free() |
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* return: -1 error or >-1 readed subscribes QoS elements |
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*/ |
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int |
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mqtt_readSUBACK(mqtt_msg_t * __restrict buf, u_short *msgID, u_char **subqos) |
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{ |
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int len, ret; |
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struct mqtthdr *hdr; |
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mqtt_len_t *v; |
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caddr_t pos; |
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if (!buf || !msgID || !subqos) |
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return -1; |
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hdr = _mqtt_readHEADER(buf, MQTT_TYPE_SUBACK, &ret, &len); |
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if (!hdr) |
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return -1; |
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pos = buf->msg_base + ret + 1; |
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v = (mqtt_len_t*) pos; |
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/* MessageID */ |
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len -= sizeof(mqtt_len_t); |
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if (len < 0) { |
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mqtt_SetErr(EINVAL, "Short message length %d", len); |
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return -1; |
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} else { |
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*msgID = ntohs(v->val); |
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pos += sizeof(mqtt_len_t); |
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} |
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/* Subscribes */ |
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*subqos = malloc(len); |
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if (!*subqos) { |
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LOGERR; |
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return -1; |
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} else |
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memcpy(*subqos, pos, len); |
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return len; |
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} |
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/* |
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* mqtt_readUNSUBSCRIBE() Read UNSUBSCRIBE message |
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* |
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* @buf = Message buffer |
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* @msgID = MessageID |
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* @subscr = Subscriptions, must be free after use with mqtt_subFree() |
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* return: -1 error or >-1 elements into subscr |
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*/ |
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int |
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mqtt_readUNSUBSCRIBE(mqtt_msg_t * __restrict buf, u_short *msgID, mqtt_subscr_t **subscr) |
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{ |
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register int i; |
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int len, ret; |
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struct mqtthdr *hdr; |
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mqtthdr_var_t *var; |
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mqtt_subscr_t *subs; |
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mqtt_len_t *v; |
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caddr_t pos; |
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if (!buf || !msgID || !subscr) |
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return -1; |
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hdr = _mqtt_readHEADER(buf, MQTT_TYPE_UNSUBSCRIBE, &ret, &len); |
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if (!hdr) |
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return -1; |
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pos = buf->msg_base + ret + 1; |
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v = (mqtt_len_t*) pos; |
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/* MessageID */ |
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len -= sizeof(mqtt_len_t); |
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if (len < 0) { |
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mqtt_SetErr(EINVAL, "Short message length %d", len); |
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return -1; |
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} else { |
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*msgID = ntohs(v->val); |
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pos += sizeof(mqtt_len_t); |
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} |
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subs = mqtt_subAlloc(0); |
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if (!subs) |
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return -1; |
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else |
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*subscr = subs; |
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/* Subscribes */ |
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for (i = 0; len > 0; i++) { |
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var = (mqtthdr_var_t*) pos; |
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len -= MQTTHDR_VAR_SIZEOF(var); |
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if (len < 0) { |
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mqtt_subFree(subscr); |
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mqtt_SetErr(EINVAL, "Short message length %d", len); |
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return -1; |
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} |
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if (!mqtt_subRealloc(&subs, i + 1)) { |
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mqtt_subFree(subscr); |
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return -1; |
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} else |
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*subscr = subs; |
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memset(&subs[i], 0, sizeof subs[i]); |
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subs[i].sub_topic.msg_len = ntohs(var->var_sb.val); |
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subs[i].sub_topic.msg_base = malloc(subs[i].sub_topic.msg_len + 1); |
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if (!subs[i].sub_topic.msg_base) { |
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LOGERR; |
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mqtt_subFree(subscr); |
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return -1; |
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} else { |
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memcpy(subs[i].sub_topic.msg_base, var->var_data, subs[i].sub_topic.msg_len); |
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((char*) subs[i].sub_topic.msg_base)[subs[i].sub_topic.msg_len] = 0; |
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} |
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pos += MQTTHDR_VAR_SIZEOF(var); |
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} |
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return i; |
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} |
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/* |
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* mqtt_readUNSUBACK() Read UNSUBACK message |
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* |
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* @buf = Message buffer |
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* return: -1 error or MessageID |
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*/ |
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u_short |
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mqtt_readUNSUBACK(mqtt_msg_t * __restrict buf) |
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{ |
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int len, ret; |
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struct mqtthdr *hdr; |
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mqtt_len_t *v; |
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caddr_t pos; |
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hdr = _mqtt_readHEADER(buf, MQTT_TYPE_UNSUBACK, &ret, &len); |
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if (!hdr) |
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return (u_short) -1; |
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if (len < sizeof(mqtt_len_t)) { |
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mqtt_SetErr(EINVAL, "Short message length %d", len); |
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return (u_short) -1; |
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} else { |
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pos = buf->msg_base + ret + 1; |
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v = (mqtt_len_t*) pos; |
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} |
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return ntohs(v->val); |
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} |
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#endif |
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