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#ifdef _FORTIFY_SOURCE
#undef _FORTIFY_SOURCE
#endif
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/mman.h>
#define MEMORY_ADDRESS ((void*)0x11110000)
#define MEMORY_SIZE 1024
#define TARGET ((int *) 0x11110100)
int main(int argc, char const *argv[])
{
char buff[1024];
void *ptr = NULL;
int *my_var = TARGET;
ptr = mmap(MEMORY_ADDRESS, MEMORY_SIZE, PROT_READ|PROT_WRITE, MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE, 0, 0);
if(ptr != MEMORY_ADDRESS)
{
perror("mmap");
return EXIT_FAILURE;
}
*my_var = 0x41414141;
write(1, &my_var, sizeof(int *));
scanf("%s", buff);
dprintf(2, buff);
write(1, "DONE", 4);
write(1, my_var, sizeof(int));
return 0;
}
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