make error: implicit declaration of function 'memzero_explicit' [-Werror=implicit-function-declaration]

[koushui]

My test OS version is CentOS Linux release 7.7.1908 (Core), and kernel version is 3.10.0-123.el7.x86_64
The reason is that “string.h“ didn't have function memzero_explicit before 3.10.77,I hope the author can fix it as soon as possible

BTW，Why has the not been able to handle the merge Pull request for the bugs ?Remove -fomit-frame-pointer in Kbuild and Fix memory leak in network hide conn feature,It is a very serious bug

[himekifee]

Actually this is just a pretty simple memset, can fix it really quick, but the author disappeared for a while. If you want, you may fork one.

[cod3r3]

Add the code below to reptile/kernel/backdoor.c

#if LINUX_VERSION_CODE < KERNEL_VERSION(3.10.60)
void memzero_explicit(void *s, size_t count)
{
memset(s, 0, count);
barrier();
}
#endif