unicorn/regress/map_write.c

#include <unicorn/unicorn.h>
#include <stdio.h>
#include <stdlib.h>

#define ADDR 0x00400000
#define SIZE 1024*64
#define OVERFLOW 1

int main() {
	uch uh;
	char *buf, *buf2;
	int i;
	uc_err err;

	err = uc_open (UC_ARCH_X86, UC_MODE_64, &uh);
	if (err) {
		printf ("uc_open %d\n", err);
		return 1;
	}
	err = uc_mem_map (uh, ADDR, SIZE);
	if (err) {
		printf ("uc_mem_map %d\n", err);
		return 1;
	}
	buf = calloc (SIZE*2, 1);
	buf2 = calloc (SIZE, 1);
	for (i=0;i<SIZE; i++) {
		buf[i] = i & 0xff;
	}
	/* crash here */
	err = uc_mem_write (uh, ADDR, buf, SIZE+OVERFLOW); 
	if (err) {
		printf ("uc_mem_map %d\n", err);
		return 1;
	}
	err = uc_mem_read (uh, ADDR+10, buf2, 4);
	if (err) {
		printf ("uc_mem_map %d\n", err);
		return 1;
	}
	if (buf2[0] != 0xa) {
		printf ("mem contents are wrong\n");
		return 1;
	}
	printf ("OK\n");
	free (buf);
	free (buf2);
	return 0;
}