Format string bugs most commonly appear when a programmer wishes to print a string containing user supplied data. The programmer may mistakenly write printf(buffer) instead of printf("%s", buffer) . The first version interprets buffer as a format string, and parses any formatting instructions it may contain. The second version simply prints a string to the screen, as the programmer intended. Consider the following short C program that has a local variable char array password which holds a password; the program asks the user for an integer and a string, then echoes out the user-provided string.
Knowledge of how to give cattle injections or shots, be it sub-subcutaneously (SQ; under the skin), intramuscularly (IM; directly into the blood supply of the muscle), or intravenously (IV; directly into the vein, usually the jugular vein), is very important in order to be able to vaccinate or treat cattle with vaccines or medicines, respectively. A cow, bull, heifer, steer or calf does not have to be sick in order to be given an injection, many cattle that are perfect healthy are required to get injections or shots for annual vaccinations or booster shots.