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Rename MYSQL_GET_PACKET_LEN to MYSQL_GET_PAYLOAD_LEN

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The function returns the length of the payload, not the length of
the entire packet.
This commit is contained in:
Johan Wikman
2017-01-12 14:24:14 +02:00
parent 77aff88ed7
commit 2fa12f796b
12 changed files with 33 additions and 33 deletions
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2
include/maxscale/protocol/mysql.h
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@ -301,7 +301,7 @@ static inline uint8_t MYSQL_GET_PACKET_NO(const uint8_t* header)
return header[3]; return header[3];
} }
static inline uint32_t MYSQL_GET_PACKET_LEN(const uint8_t* header) static inline uint32_t MYSQL_GET_PAYLOAD_LEN(const uint8_t* header)
{ {
return gw_mysql_get_byte3(header); return gw_mysql_get_byte3(header);
} }

2
query_classifier/qc_mysqlembedded/qc_mysqlembedded.cc
View File

@ -226,7 +226,7 @@ static bool parse_query(GWBUF* querybuf)
/** Extract query and copy it to different buffer */ /** Extract query and copy it to different buffer */
data = (uint8_t*) GWBUF_DATA(querybuf); data = (uint8_t*) GWBUF_DATA(querybuf);
len = MYSQL_GET_PACKET_LEN(data) - 1; /*< distract 1 for packet type byte */ len = MYSQL_GET_PAYLOAD_LEN(data) - 1; /*< distract 1 for packet type byte */
if (len < 1 || len >= ~((size_t) 0) - 1 || (query_str = (char *) malloc(len + 1)) == NULL) if (len < 1 || len >= ~((size_t) 0) - 1 || (query_str = (char *) malloc(len + 1)) == NULL)

6
query_classifier/qc_sqlite/qc_sqlite.c
View File

@ -511,7 +511,7 @@ static bool parse_query(GWBUF* query)
uint8_t* data = (uint8_t*) GWBUF_DATA(query); uint8_t* data = (uint8_t*) GWBUF_DATA(query);
if ((GWBUF_LENGTH(query) >= MYSQL_HEADER_LEN + 1) && if ((GWBUF_LENGTH(query) >= MYSQL_HEADER_LEN + 1) &&
(GWBUF_LENGTH(query) == MYSQL_HEADER_LEN + MYSQL_GET_PACKET_LEN(data))) (GWBUF_LENGTH(query) == MYSQL_HEADER_LEN + MYSQL_GET_PAYLOAD_LEN(data)))
{ {
if (MYSQL_GET_COMMAND(data) == MYSQL_COM_QUERY) if (MYSQL_GET_COMMAND(data) == MYSQL_COM_QUERY)
{ {
@ -521,7 +521,7 @@ static bool parse_query(GWBUF* query)
{ {
this_thread.info = info; this_thread.info = info;
size_t len = MYSQL_GET_PACKET_LEN(data) - 1; // Subtract 1 for packet type byte. size_t len = MYSQL_GET_PAYLOAD_LEN(data) - 1; // Subtract 1 for packet type byte.
const char* s = (const char*) &data[MYSQL_HEADER_LEN + 1]; const char* s = (const char*) &data[MYSQL_HEADER_LEN + 1];
@ -576,7 +576,7 @@ static bool parse_query(GWBUF* query)
else else
{ {
MXS_ERROR("Packet size %ld, provided buffer is %ld.", MXS_ERROR("Packet size %ld, provided buffer is %ld.",
MYSQL_HEADER_LEN + MYSQL_GET_PACKET_LEN(data), MYSQL_HEADER_LEN + MYSQL_GET_PAYLOAD_LEN(data),
GWBUF_LENGTH(query)); GWBUF_LENGTH(query));
} }
} }

10
server/core/modutil.c
View File

@ -190,7 +190,7 @@ int modutil_MySQL_query_len(GWBUF* buf, int* nbytes_missing)
len = 0; len = 0;
goto retblock; goto retblock;
} }
len = MYSQL_GET_PACKET_LEN((uint8_t *)GWBUF_DATA(buf)); len = MYSQL_GET_PAYLOAD_LEN((uint8_t *)GWBUF_DATA(buf));
*nbytes_missing = len - 1; *nbytes_missing = len - 1;
buflen = gwbuf_length(buf); buflen = gwbuf_length(buf);
@ -344,7 +344,7 @@ modutil_get_query(GWBUF *buf)
break; break;
case MYSQL_COM_QUERY: case MYSQL_COM_QUERY:
len = MYSQL_GET_PACKET_LEN(packet) - 1; /*< distract 1 for packet type byte */ len = MYSQL_GET_PAYLOAD_LEN(packet) - 1; /*< distract 1 for packet type byte */
if (len < 1 || len > ~(size_t)0 - 1 || (query_str = (char *)MXS_MALLOC(len + 1)) == NULL) if (len < 1 || len > ~(size_t)0 - 1 || (query_str = (char *)MXS_MALLOC(len + 1)) == NULL)
{ {
if (len >= 1 && len <= ~(size_t)0 - 1) if (len >= 1 && len <= ~(size_t)0 - 1)
@ -519,14 +519,14 @@ GWBUF* modutil_get_next_MySQL_packet(GWBUF** p_readbuf)
if (GWBUF_LENGTH(readbuf) >= 3) // The length is in the 3 first bytes. if (GWBUF_LENGTH(readbuf) >= 3) // The length is in the 3 first bytes.
{ {
uint8_t *data = (uint8_t *)GWBUF_DATA((readbuf)); uint8_t *data = (uint8_t *)GWBUF_DATA((readbuf));
packetlen = MYSQL_GET_PACKET_LEN(data) + 4; packetlen = MYSQL_GET_PAYLOAD_LEN(data) + 4;
} }
else else
{ {
// The header is split between two GWBUFs. // The header is split between two GWBUFs.
uint8_t data[3]; uint8_t data[3];
gwbuf_copy_data(readbuf, 0, 3, data); gwbuf_copy_data(readbuf, 0, 3, data);
packetlen = MYSQL_GET_PACKET_LEN(data) + 4; packetlen = MYSQL_GET_PAYLOAD_LEN(data) + 4;
} }
if (packetlen <= totalbuflen) if (packetlen <= totalbuflen)
@ -655,7 +655,7 @@ modutil_count_signal_packets(GWBUF *reply, int use_ok, int n_found, int* more)
bool moreresults = false; bool moreresults = false;
while (ptr < end) while (ptr < end)
{ {
pktlen = MYSQL_GET_PACKET_LEN(ptr) + 4; pktlen = MYSQL_GET_PAYLOAD_LEN(ptr) + 4;
if ((iserr = PTR_IS_ERR(ptr)) || (iseof = PTR_IS_EOF(ptr))) if ((iserr = PTR_IS_ERR(ptr)) || (iseof = PTR_IS_EOF(ptr)))
{ {

8
server/modules/filter/cache/cachefiltersession.cc vendored
View File

@ -93,7 +93,7 @@ int CacheFilterSession::routeQuery(GWBUF* pPacket)
// All of these should be guaranteed by RCAP_TYPE_TRANSACTION_TRACKING // All of these should be guaranteed by RCAP_TYPE_TRANSACTION_TRACKING
ss_dassert(GWBUF_IS_CONTIGUOUS(pPacket)); ss_dassert(GWBUF_IS_CONTIGUOUS(pPacket));
ss_dassert(GWBUF_LENGTH(pPacket) >= MYSQL_HEADER_LEN + 1); ss_dassert(GWBUF_LENGTH(pPacket) >= MYSQL_HEADER_LEN + 1);
ss_dassert(MYSQL_GET_PACKET_LEN(pData) + MYSQL_HEADER_LEN == GWBUF_LENGTH(pPacket)); ss_dassert(MYSQL_GET_PAYLOAD_LEN(pData) + MYSQL_HEADER_LEN == GWBUF_LENGTH(pPacket));
bool fetch_from_server = true; bool fetch_from_server = true;
@ -107,7 +107,7 @@ int CacheFilterSession::routeQuery(GWBUF* pPacket)
case MYSQL_COM_INIT_DB: case MYSQL_COM_INIT_DB:
{ {
ss_dassert(!m_zUseDb); ss_dassert(!m_zUseDb);
size_t len = MYSQL_GET_PACKET_LEN(pData) - 1; // Remove the command byte. size_t len = MYSQL_GET_PAYLOAD_LEN(pData) - 1; // Remove the command byte.
m_zUseDb = (char*)MXS_MALLOC(len + 1); m_zUseDb = (char*)MXS_MALLOC(len + 1);
if (m_zUseDb) if (m_zUseDb)
@ -337,7 +337,7 @@ int CacheFilterSession::handle_expecting_fields()
uint8_t header[MYSQL_HEADER_LEN + 1]; uint8_t header[MYSQL_HEADER_LEN + 1];
gwbuf_copy_data(m_res.pData, m_res.offset, MYSQL_HEADER_LEN + 1, header); gwbuf_copy_data(m_res.pData, m_res.offset, MYSQL_HEADER_LEN + 1, header);
size_t packetlen = MYSQL_HEADER_LEN + MYSQL_GET_PACKET_LEN(header); size_t packetlen = MYSQL_HEADER_LEN + MYSQL_GET_PAYLOAD_LEN(header);
if (m_res.offset + packetlen <= buflen) if (m_res.offset + packetlen <= buflen)
{ {
@ -473,7 +473,7 @@ int CacheFilterSession::handle_expecting_rows()
uint8_t header[MYSQL_HEADER_LEN + 1]; uint8_t header[MYSQL_HEADER_LEN + 1];
gwbuf_copy_data(m_res.pData, m_res.offset, MYSQL_HEADER_LEN + 1, header); gwbuf_copy_data(m_res.pData, m_res.offset, MYSQL_HEADER_LEN + 1, header);
size_t packetlen = MYSQL_HEADER_LEN + MYSQL_GET_PACKET_LEN(header); size_t packetlen = MYSQL_HEADER_LEN + MYSQL_GET_PAYLOAD_LEN(header);
if (m_res.offset + packetlen <= buflen) if (m_res.offset + packetlen <= buflen)
{ {

2
server/modules/filter/masking/mysql.hh
View File

@ -490,7 +490,7 @@ protected:
ComPacket(GWBUF* pPacket) ComPacket(GWBUF* pPacket)
: m_pPacket(pPacket) : m_pPacket(pPacket)
, m_pI(GWBUF_DATA(pPacket)) , m_pI(GWBUF_DATA(pPacket))
, m_packet_len(MYSQL_GET_PACKET_LEN(m_pI)) , m_packet_len(MYSQL_GET_PAYLOAD_LEN(m_pI))
, m_packet_no(MYSQL_GET_PACKET_NO(m_pI)) , m_packet_no(MYSQL_GET_PACKET_NO(m_pI))
{ {
m_pI += MYSQL_HEADER_LEN; m_pI += MYSQL_HEADER_LEN;

6
server/modules/filter/maxrows/maxrows.c
View File

@ -292,7 +292,7 @@ static int routeQuery(FILTER *instance, void *sdata, GWBUF *packet)
// All of these should be guaranteed by RCAP_TYPE_TRANSACTION_TRACKING // All of these should be guaranteed by RCAP_TYPE_TRANSACTION_TRACKING
ss_dassert(GWBUF_IS_CONTIGUOUS(packet)); ss_dassert(GWBUF_IS_CONTIGUOUS(packet));
ss_dassert(GWBUF_LENGTH(packet) >= MYSQL_HEADER_LEN + 1); ss_dassert(GWBUF_LENGTH(packet) >= MYSQL_HEADER_LEN + 1);
ss_dassert(MYSQL_GET_PACKET_LEN(data) + MYSQL_HEADER_LEN == GWBUF_LENGTH(packet)); ss_dassert(MYSQL_GET_PAYLOAD_LEN(data) + MYSQL_HEADER_LEN == GWBUF_LENGTH(packet));
maxrows_response_state_reset(&csdata->res); maxrows_response_state_reset(&csdata->res);
csdata->state = MAXROWS_IGNORING_RESPONSE; csdata->state = MAXROWS_IGNORING_RESPONSE;
@ -500,7 +500,7 @@ static int handle_expecting_fields(MAXROWS_SESSION_DATA *csdata)
uint8_t header[MYSQL_HEADER_LEN + 1]; uint8_t header[MYSQL_HEADER_LEN + 1];
gwbuf_copy_data(csdata->res.data, csdata->res.offset, MYSQL_HEADER_LEN + 1, header); gwbuf_copy_data(csdata->res.data, csdata->res.offset, MYSQL_HEADER_LEN + 1, header);
size_t packetlen = MYSQL_HEADER_LEN + MYSQL_GET_PACKET_LEN(header); size_t packetlen = MYSQL_HEADER_LEN + MYSQL_GET_PAYLOAD_LEN(header);
if (csdata->res.offset + packetlen <= buflen) if (csdata->res.offset + packetlen <= buflen)
{ {
@ -682,7 +682,7 @@ static int handle_rows(MAXROWS_SESSION_DATA *csdata)
uint8_t header[MAXROWS_EOF_PACKET_LEN]; uint8_t header[MAXROWS_EOF_PACKET_LEN];
gwbuf_copy_data(csdata->res.data, csdata->res.offset, MAXROWS_EOF_PACKET_LEN, header); gwbuf_copy_data(csdata->res.data, csdata->res.offset, MAXROWS_EOF_PACKET_LEN, header);
size_t packetlen = MYSQL_HEADER_LEN + MYSQL_GET_PACKET_LEN(header); size_t packetlen = MYSQL_HEADER_LEN + MYSQL_GET_PAYLOAD_LEN(header);
if (csdata->res.offset + packetlen <= buflen) if (csdata->res.offset + packetlen <= buflen)
{ {

2
server/modules/protocol/MySQL/MySQLBackend/mysql_backend.c
View File

@ -406,7 +406,7 @@ bool is_error_response(GWBUF *buffer)
void log_error_response(DCB *dcb, GWBUF *buffer) void log_error_response(DCB *dcb, GWBUF *buffer)
{ {
uint8_t *data = (uint8_t*)GWBUF_DATA(buffer); uint8_t *data = (uint8_t*)GWBUF_DATA(buffer);
size_t len = MYSQL_GET_PACKET_LEN(data); size_t len = MYSQL_GET_PAYLOAD_LEN(data);
uint16_t errcode = MYSQL_GET_ERRCODE(data); uint16_t errcode = MYSQL_GET_ERRCODE(data);
char bufstr[len]; char bufstr[len];
memcpy(bufstr, data + 7, len - 3); memcpy(bufstr, data + 7, len - 3);

12
server/modules/protocol/MySQL/MySQLClient/mysql_client.c
View File

@ -474,7 +474,7 @@ int gw_read_client_event(DCB* dcb)
case MXS_AUTH_STATE_MESSAGE_READ: case MXS_AUTH_STATE_MESSAGE_READ:
/* After this call read_buffer will point to freed data */ /* After this call read_buffer will point to freed data */
if (nbytes_read < 3 || (0 == max_bytes && nbytes_read < if (nbytes_read < 3 || (0 == max_bytes && nbytes_read <
(MYSQL_GET_PACKET_LEN((uint8_t *) GWBUF_DATA(read_buffer)) + 4)) || (MYSQL_GET_PAYLOAD_LEN((uint8_t *) GWBUF_DATA(read_buffer)) + 4)) ||
(0 != max_bytes && nbytes_read < max_bytes)) (0 != max_bytes && nbytes_read < max_bytes))
{ {
@ -523,7 +523,7 @@ static void store_client_information(DCB *dcb, GWBUF *buffer)
MYSQL_session *ses = (MYSQL_session*)dcb->data; MYSQL_session *ses = (MYSQL_session*)dcb->data;
gwbuf_copy_data(buffer, 0, len, data); gwbuf_copy_data(buffer, 0, len, data);
ss_dassert(MYSQL_GET_PACKET_LEN(data) + MYSQL_HEADER_LEN == len || ss_dassert(MYSQL_GET_PAYLOAD_LEN(data) + MYSQL_HEADER_LEN == len ||
len == MYSQL_AUTH_PACKET_BASE_SIZE); // For SSL request packet len == MYSQL_AUTH_PACKET_BASE_SIZE); // For SSL request packet
proto->client_capabilities = gw_mysql_get_byte4(data + MYSQL_CLIENT_CAP_OFFSET); proto->client_capabilities = gw_mysql_get_byte4(data + MYSQL_CLIENT_CAP_OFFSET);
@ -568,7 +568,7 @@ static void check_packet(DCB *dcb, GWBUF *buf, int bytes)
ss_dassert(gwbuf_copy_data(buf, 0, MYSQL_HEADER_LEN, hdr) == MYSQL_HEADER_LEN); ss_dassert(gwbuf_copy_data(buf, 0, MYSQL_HEADER_LEN, hdr) == MYSQL_HEADER_LEN);
int buflen = gwbuf_length(buf); int buflen = gwbuf_length(buf);
int pktlen = MYSQL_GET_PACKET_LEN(hdr) + MYSQL_HEADER_LEN; int pktlen = MYSQL_GET_PAYLOAD_LEN(hdr) + MYSQL_HEADER_LEN;
if (bytes == MYSQL_AUTH_PACKET_BASE_SIZE) if (bytes == MYSQL_AUTH_PACKET_BASE_SIZE)
{ {
@ -897,7 +897,7 @@ gw_read_normal_data(DCB *dcb, GWBUF *read_buffer, int nbytes_read)
int packet_size; int packet_size;
if (nbytes_read < 3 || nbytes_read < if (nbytes_read < 3 || nbytes_read <
(MYSQL_GET_PACKET_LEN((uint8_t *) GWBUF_DATA(read_buffer)) + 4)) (MYSQL_GET_PAYLOAD_LEN((uint8_t *) GWBUF_DATA(read_buffer)) + 4))
{ {
dcb->dcb_readqueue = read_buffer; dcb->dcb_readqueue = read_buffer;
@ -1555,7 +1555,7 @@ static bool ensure_complete_packet(DCB *dcb, GWBUF **read_buffer, int nbytes_rea
{ {
dcb->dcb_readqueue = gwbuf_append(dcb->dcb_readqueue, *read_buffer); dcb->dcb_readqueue = gwbuf_append(dcb->dcb_readqueue, *read_buffer);
nbytes_read = gwbuf_length(dcb->dcb_readqueue); nbytes_read = gwbuf_length(dcb->dcb_readqueue);
int plen = MYSQL_GET_PACKET_LEN((uint8_t *) GWBUF_DATA(dcb->dcb_readqueue)); int plen = MYSQL_GET_PAYLOAD_LEN((uint8_t *) GWBUF_DATA(dcb->dcb_readqueue));
if (nbytes_read < 3 || nbytes_read < plen + 4) if (nbytes_read < 3 || nbytes_read < plen + 4)
{ {
@ -1575,7 +1575,7 @@ static bool ensure_complete_packet(DCB *dcb, GWBUF **read_buffer, int nbytes_rea
{ {
uint8_t* data = (uint8_t *) GWBUF_DATA(*read_buffer); uint8_t* data = (uint8_t *) GWBUF_DATA(*read_buffer);
if (nbytes_read < 3 || nbytes_read < MYSQL_GET_PACKET_LEN(data) + 4) if (nbytes_read < 3 || nbytes_read < MYSQL_GET_PAYLOAD_LEN(data) + 4)
{ {
dcb->dcb_readqueue = gwbuf_append(dcb->dcb_readqueue, *read_buffer); dcb->dcb_readqueue = gwbuf_append(dcb->dcb_readqueue, *read_buffer);
return false; return false;

2
server/modules/protocol/MySQL/mysql_common.c
View File

@ -558,7 +558,7 @@ GWBUF* gw_MySQL_get_next_packet(GWBUF** p_readbuf)
} }
totalbuflen = gwbuf_length(readbuf); totalbuflen = gwbuf_length(readbuf);
data = (uint8_t *)GWBUF_DATA((readbuf)); data = (uint8_t *)GWBUF_DATA((readbuf));
packetlen = MYSQL_GET_PACKET_LEN(data) + 4; packetlen = MYSQL_GET_PAYLOAD_LEN(data) + 4;
/** packet is incomplete */ /** packet is incomplete */
if (packetlen > totalbuflen) if (packetlen > totalbuflen)

8
server/modules/routing/readwritesplit/rwsplit_mysql.c
View File

@ -163,7 +163,7 @@ log_transaction_status(ROUTER_CLIENT_SES *rses, GWBUF *querybuf, qc_query_type_t
uint8_t *packet = GWBUF_DATA(querybuf); uint8_t *packet = GWBUF_DATA(querybuf);
unsigned char ptype = packet[4]; unsigned char ptype = packet[4];
size_t len = MXS_MIN(GWBUF_LENGTH(querybuf), size_t len = MXS_MIN(GWBUF_LENGTH(querybuf),
MYSQL_GET_PACKET_LEN((unsigned char *)querybuf->start) - 1); MYSQL_GET_PAYLOAD_LEN((unsigned char *)querybuf->start) - 1);
char *data = (char *)&packet[5]; char *data = (char *)&packet[5];
char *contentstr = strndup(data, MXS_MIN(len, RWSPLIT_TRACE_MSG_LEN)); char *contentstr = strndup(data, MXS_MIN(len, RWSPLIT_TRACE_MSG_LEN));
char *qtypestr = qc_typemask_to_string(qtype); char *qtypestr = qc_typemask_to_string(qtype);
@ -386,8 +386,8 @@ void check_session_command_reply(GWBUF *writebuf, sescmd_cursor_t *scur, backend
{ {
uint8_t *buf = (uint8_t *)GWBUF_DATA((scur->scmd_cur_cmd->my_sescmd_buf)); uint8_t *buf = (uint8_t *)GWBUF_DATA((scur->scmd_cur_cmd->my_sescmd_buf));
uint8_t *replybuf = (uint8_t *)GWBUF_DATA(writebuf); uint8_t *replybuf = (uint8_t *)GWBUF_DATA(writebuf);
size_t len = MYSQL_GET_PACKET_LEN(buf); size_t len = MYSQL_GET_PAYLOAD_LEN(buf);
size_t replylen = MYSQL_GET_PACKET_LEN(replybuf); size_t replylen = MYSQL_GET_PAYLOAD_LEN(replybuf);
char *err = strndup(&((char *)replybuf)[8], 5); char *err = strndup(&((char *)replybuf)[8], 5);
char *replystr = strndup(&((char *)replybuf)[13], replylen - 4 - 5); char *replystr = strndup(&((char *)replybuf)[13], replylen - 4 - 5);
@ -481,7 +481,7 @@ bool execute_sescmd_in_backend(backend_ref_t *backend_ref)
data = dcb->session->client_dcb->data; data = dcb->session->client_dcb->data;
*data->db = 0; *data->db = 0;
tmpbuf = scur->scmd_cur_cmd->my_sescmd_buf; tmpbuf = scur->scmd_cur_cmd->my_sescmd_buf;
qlen = MYSQL_GET_PACKET_LEN((unsigned char *) GWBUF_DATA(tmpbuf)); qlen = MYSQL_GET_PAYLOAD_LEN((unsigned char *) GWBUF_DATA(tmpbuf));
if (qlen) if (qlen)
{ {
--qlen; // The COM_INIT_DB byte --qlen; // The COM_INIT_DB byte

6
server/modules/routing/schemarouter/schemarouter.c
View File

@ -1792,7 +1792,7 @@ static int routeQuery(ROUTER* instance,
uint8_t* packet = GWBUF_DATA(querybuf); uint8_t* packet = GWBUF_DATA(querybuf);
unsigned char ptype = packet[4]; unsigned char ptype = packet[4];
size_t len = MXS_MIN(GWBUF_LENGTH(querybuf), size_t len = MXS_MIN(GWBUF_LENGTH(querybuf),
MYSQL_GET_PACKET_LEN((unsigned char *)querybuf->start) - 1); MYSQL_GET_PAYLOAD_LEN((unsigned char *)querybuf->start) - 1);
char* data = (char*)&packet[5]; char* data = (char*)&packet[5];
char* contentstr = strndup(data, len); char* contentstr = strndup(data, len);
char* qtypestr = qc_typemask_to_string(qtype); char* qtypestr = qc_typemask_to_string(qtype);
@ -2403,8 +2403,8 @@ static void clientReply(ROUTER* instance,
{ {
uint8_t* buf = (uint8_t *) GWBUF_DATA((scur->scmd_cur_cmd->my_sescmd_buf)); uint8_t* buf = (uint8_t *) GWBUF_DATA((scur->scmd_cur_cmd->my_sescmd_buf));
uint8_t* replybuf = (uint8_t *) GWBUF_DATA(writebuf); uint8_t* replybuf = (uint8_t *) GWBUF_DATA(writebuf);
size_t len = MYSQL_GET_PACKET_LEN(buf); size_t len = MYSQL_GET_PAYLOAD_LEN(buf);
size_t replylen = MYSQL_GET_PACKET_LEN(replybuf); size_t replylen = MYSQL_GET_PAYLOAD_LEN(replybuf);
char* cmdstr = strndup(&((char *) buf)[5], len - 4); char* cmdstr = strndup(&((char *) buf)[5], len - 4);
char* err = strndup(&((char *) replybuf)[8], 5); char* err = strndup(&((char *) replybuf)[8], 5);
char* replystr = strndup(&((char *) replybuf)[13], char* replystr = strndup(&((char *) replybuf)[13],