/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
#include "unconst.h"
#include <string.h>

char* strstr(const char* s, const char* find)
{
    char c, sc;
    size_t len;

    if ((c = *find++) != 0) {
        len = strlen(find);
        do {
            do {
                if ((sc = *s++) == 0)
                    return 0;
            } while (sc != c);
        } while (strncmp(s, find, len) != 0);
        s--;
    }
    return unconst(s, char*);
}