ref: 21336d544ae90e20070fd7c8be67f3f2c9ccbe38 dir: /libkern/memchr.c/
#include <lib9.h> void* memchr(void *ap, int c, ulong n) { uchar *sp; sp = ap; c &= 0xFF; while(n > 0) { if(*sp++ == c) return sp-1; n--; } return 0; }