Can the strtok function be used unsafely here?

[algorithmn]

cellular_at_core.c:564
func: Cellular_ATGetSpecificNextTok

if( atStatus == CELLULAR_AT_SUCCESS )
{
dataStrlen = ( uint16_t ) strlen( *ppString );

  if( ( **ppString ) == ( *pDelimiter ) )
  {
      **ppString = '\0';
      tok = *ppString;
  }
  else
  {
      tok = strtok( *ppString, pDelimiter );
  }

}