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ct.c tuneups from NCBI as of May 2024 #561

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ct.c tuneups from NCBI as of May 2024 #561

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9e188ac
ct_get_data: Populate cmd->iodesc->name more efficiently.
ucko May 13, 2024
2dd8c4b
ct.c (paraminfoalloc): Report long variable-width values.
ucko May 13, 2024
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34 changes: 30 additions & 4 deletions src/ctlib/ct.c
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Original file line number Diff line number Diff line change
Expand Up @@ -154,6 +154,10 @@ _ct_get_user_api_layer_error(int error)
case 15:
return "Use direction CS_BLK_IN or CS_BLK_OUT for a bulk copy operation.";
break;
case 36:
return "The result is truncated because the"
" conversion/operation resulted in overflow.";
break;
case 51:
return "Exactly one of context and connection must be non-NULL.";
break;
Expand Down Expand Up @@ -2952,12 +2956,26 @@ ct_get_data(CS_COMMAND * cmd, CS_INT item, CS_VOID * buffer, CS_INT buflen, CS_I
if (table_namelen + column_namelen + 2 > sizeof(cmd->iodesc->name))
column_namelen = sizeof(cmd->iodesc->name) - 2 - table_namelen;

sprintf(cmd->iodesc->name, "%*.*s.%*.*s",
(int) table_namelen, (int) table_namelen, tds_dstr_cstr(&curcol->table_name),
(int) column_namelen, (int) column_namelen, tds_dstr_cstr(&curcol->column_name));
if (table_namelen) {
memcpy(cmd->iodesc->name,
tds_dstr_cstr(&curcol->table_name),
table_namelen);
cmd->iodesc->namelen = (CS_INT) table_namelen;
} else {
cmd->iodesc->namelen = 0;
}

cmd->iodesc->name[cmd->iodesc->namelen] = '.';
++cmd->iodesc->namelen;

cmd->iodesc->namelen = strlen(cmd->iodesc->name);
if (column_namelen) {
memcpy(cmd->iodesc->name + cmd->iodesc->namelen,
tds_dstr_cstr(&curcol->column_name),
column_namelen);
cmd->iodesc->namelen += (CS_INT) column_namelen;
}

cmd->iodesc->name[cmd->iodesc->namelen] = '\0';
if (blob && blob->valid_ptr) {
memcpy(cmd->iodesc->timestamp, blob->timestamp, CS_TS_SIZE);
cmd->iodesc->timestamplen = CS_TS_SIZE;
Expand Down Expand Up @@ -4227,6 +4245,14 @@ paraminfoalloc(TDSSOCKET * tds, CS_PARAM * first_param)
pcol->column_prec = p->precision;
pcol->column_scale = p->scale;
if (pcol->column_varint_size) {
if ((pcol->column_varint_size == 2
&& *(p->datalen) > 8000)
|| (pcol->column_varint_size == 1
&& *(p->datalen) > 255)) {
_ctclient_msg(NULL,
(CS_CONNECTION*) tds_get_parent(tds),
"paraminfoalloc", 1, 1, 10, 36, "");
}
if (p->maxlen < 0) {
tds_free_param_results(params);
return NULL;
Expand Down