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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
extern char **g_argv;
/* Call this MMU Hack kernel module after doing mmap, and before doing memset*/
int mmuhack(void)
{
char kocmd[1024];
int i, mmufd = open("/dev/mmuhack", O_RDWR);
if(mmufd < 0) {
strcpy(kocmd, "/sbin/insmod ");
strncpy(kocmd+13, g_argv[0], 1023-13);
kocmd[1023] = 0;
for (i = strlen(kocmd); i > 0; i--)
if (kocmd[i] == '/') { kocmd[i] = 0; break; }
strcat(kocmd, "/mmuhack.o");
printf("Installing NK's kernel module for Squidge MMU Hack (%s)...\n", kocmd);
system(kocmd);
mmufd = open("/dev/mmuhack", O_RDWR);
}
if(mmufd < 0) return 0;
close(mmufd);
return 1;
}
/* Unload MMU Hack kernel module after closing all memory devices*/
int mmuunhack(void)
{
int ret;
printf("Removing NK's kernel module for Squidge MMU Hack... "); fflush(stdout);
ret = system("/sbin/rmmod mmuhack");
printf("done (%i)\n", ret);
return ret;
}
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