ref: 51bf59e016b43f16ec91943829af30d99a886cc1 dir: /libkern/strrchr.c/
#include <lib9.h> char* strrchr(char *s, int c) { char *r; if(c == 0) return strchr(s, 0); r = 0; while(s = strchr(s, c)) r = s++; return r; }