ref: 072c45d4633d5f03e3b79f9c60c3655a6d4a1149
dir: /sys/src/libauthsrv/nvcsum.c/
#include <u.h> #include <libc.h> #include <auth.h> uchar nvcsum(void *vmem, int n) { uchar *mem, sum; int i; sum = 9; mem = vmem; for(i = 0; i < n; i++) sum += mem[i]; return sum; }