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OverflowDestination.cpp

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int main(int argc, char* argv[]) {

char param[20];

char *arg1;

arg1 = argv[1];

//wrong: only uses the size of the source (argv[1]) when using strncpy

strncpy(param, arg1, strlen(arg1));

//correct: uses the size of the destination array as well

strncpy(param, arg1, min(strlen(arg1), sizeof(param) -1));

}