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copyBootHash
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char *copyBootHash(void) { | |
unsigned char buf[1024]; | |
uint32_t length = 1024; | |
io_registry_entry_t chosen = IORegistryEntryFromPath(kIOMasterPortDefault, "IODeviceTree:/chosen"); | |
if (!MACH_PORT_VALID(chosen)) { | |
printf("Unable to get IODeviceTree:/chosen port\n"); | |
return NULL; | |
} | |
kern_return_t ret = IORegistryEntryGetProperty(chosen, "boot-manifest-hash", (void*)buf, &length); | |
IOObjectRelease(chosen); | |
if (ret != ERR_SUCCESS) { | |
printf("Unable to read boot-manifest-hash\n"); | |
return NULL; | |
} | |
// Make a hex string out of the hash | |
char manifestHash[length*2+1]; | |
bzero(manifestHash, sizeof(manifestHash)); | |
int i; | |
for (i=0; i<length; i++) { | |
sprintf(manifestHash+i*2, "%02X", buf[i]); | |
} | |
printf("Hash: %s\n", manifestHash); | |
return strdup(manifestHash); | |
} |
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