ref: 410c1337e07a9f1d521360a160903fe32b4e0d4a 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; }