Hotfix/sangshuduo/td 3197 fix taosdemo coverity scan (#5779)

* [TD-3197] <fix>: fix taosdemo coverity scan issues.

* [TD-3197] <fix>: fix taosdemo coverity scan issue.

fix subscribeTest pids uninitialized.

* [TD-3197] <fix>: fix taosdemo coverity scan issues.

* [TD-3197] <fix>: fix coverity scan issues.

check super tbl info pointer.

* [TD-3197] <fix>: fix coverity scan issues.

move sub tbl query thread join into loop

* [TD-3197] <fix>: fix coverity scan issues.

remove unused variable

* [TD-3197] <fix>: fix coverity scan issues.

use more secure random library

* [TD-3197] <fix>: fix coverity scan issues.

use strncpy for more safe

* [TD-3197] <fix>: fix taosdemo coverity scan issue.

replace arc4random with rand().

* [TD-3197] <fix>: fix coverity scan issues.

check stb info pointer for start time

* [TD-3197] <fix>: fix coverity scan issues.

fix strcpy vulnerability

* [TD-3197] <fix>: fix taosdemo coverity scan issue.

modify taosdemoTest2. try to check database continously.

* [TD-3197] <fix>: taosdemo coverity scan issues.

* [TD-3197] <fix>: fix memory leak when parsing arguments.

* [TD-3197] <fix>: fix cmake strip arguments.

* [TD-3197] <fix>: taosdemo coverity scan.

fix cmake string manipulation.

* [TD-3197]<fix>: taosdemo coverity scan issue.

configDir buffer overwrite.

* [TD-3197]<fix>: coverity scan issue.

taosdump argument validation.
Co-authored-by: NShuduo Sang <sdsang@taosdata.com>

src/kit/taosdump/taosdump.c

@@ -483,6 +483,7 @@ static int queryDbImpl(TAOS *taos, char *command) {
 static void parse_args(int argc, char *argv[], SArguments *arguments) {
   for (int i = 1; i < argc; i++) {
     if (strcmp(argv[i], "-E") == 0) {
+      if (argv[i+1]) {
         char *tmp = strdup(argv[++i]);
 
         if (tmp) {
@@ -507,6 +508,10 @@ static void parse_args(int argc, char *argv[], SArguments *arguments) {
           errorPrint("%s() LN%d, strdup() cannot allocate memory\n", __func__, __LINE__);
           exit(-1);
         }
+      } else {
+        errorPrint("%s() LN%d, -E need a valid value following!\n", __func__, __LINE__);
+        exit(-1);
+      }
     } else if (strcmp(argv[i], "-g") == 0) {
       arguments->debug_print = true;
     }