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Hotfix/sangshuduo/td 3801 taosdump coverity scan issue (#6642) 

* [TD-3801]<fix>: taosdump coverity scan issue.

* merge from commit: 069169e7c1 and fix coverity scan issue.

Co-authored-by: Shuduo Sang <sdsang@taosdata.com>
This commit is contained in:
Shuduo Sang 2021-06-28 11:45:53 +08:00 committed by GitHub
parent 58ccbedfe0
commit eadaa53418
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 6 additions and 4 deletions
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2
src/kit/taosdemo/taosdemo.c
View File

@ -5098,7 +5098,7 @@ static int32_t generateStbDataTail(
} else {
retLen = getRowDataFromSample(
data,
remainderBufLen,
remainderBufLen < MAX_DATA_SIZE ? remainderBufLen : MAX_DATA_SIZE,
startTime + superTblInfo->timeStampStep * k,
superTblInfo,
pSamplePos);

8
src/kit/taosdump/taosdump.c
View File

@ -29,6 +29,9 @@
#define COMMAND_SIZE 65536
//#define DEFAULT_DUMP_FILE "taosdump.sql"
// for strncpy buffer overflow
#define min(a, b) (((a) < (b)) ? (a) : (b))
int converStringToReadable(char *str, int size, char *buf, int bufsize);
int convertNCharToReadable(char *str, int size, char *buf, int bufsize);
void taosDumpCharset(FILE *fp);
@ -1119,12 +1122,11 @@ int taosGetTableDes(
TAOS_FIELD *fields = taos_fetch_fields(res);
tstrncpy(tableDes->name, table, TSDB_TABLE_NAME_LEN);
while ((row = taos_fetch_row(res)) != NULL) {
strncpy(tableDes->cols[count].field, (char *)row[TSDB_DESCRIBE_METRIC_FIELD_INDEX],
fields[TSDB_DESCRIBE_METRIC_FIELD_INDEX].bytes);
strncpy(tableDes->cols[count].type, (char *)row[TSDB_DESCRIBE_METRIC_TYPE_INDEX],
fields[TSDB_DESCRIBE_METRIC_TYPE_INDEX].bytes);
min(15, fields[TSDB_DESCRIBE_METRIC_TYPE_INDEX].bytes));
tableDes->cols[count].length = *((int *)row[TSDB_DESCRIBE_METRIC_LENGTH_INDEX]);
strncpy(tableDes->cols[count].note, (char *)row[TSDB_DESCRIBE_METRIC_NOTE_INDEX],
fields[TSDB_DESCRIBE_METRIC_NOTE_INDEX].bytes);
@ -1575,7 +1577,7 @@ int taosDumpDb(SDbInfo *dbInfo, struct arguments *arguments, FILE *fp, TAOS *tao
tstrncpy(tableRecord.name, (char *)row[TSDB_SHOW_TABLES_NAME_INDEX],
fields[TSDB_SHOW_TABLES_NAME_INDEX].bytes);
tstrncpy(tableRecord.metric, (char *)row[TSDB_SHOW_TABLES_METRIC_INDEX],
fields[TSDB_SHOW_TABLES_METRIC_INDEX].bytes);
min(TSDB_TABLE_NAME_LEN, fields[TSDB_SHOW_TABLES_METRIC_INDEX].bytes));
taosWrite(fd, &tableRecord, sizeof(STableRecord));