in macos/midtier.c [217:232]
int updateKeyLabel(
const char* label,
const char* tag,
unsigned char* hash,
const char* newLabel,
char** error) {
OSStatus status = UpdateKeyLabel(label, tag, hash, newLabel);
if (status != errSecSuccess) {
CFStringRef errStr = SecCopyErrorMessageString(status, NULL);
*error = CFStringToCString(errStr);
CFRelease((CFTypeRef)errStr);
return 0;
}
return 1;
}