| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * |
| * Copyright (C) 2002 Manuel Novoa III |
| * Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org> |
| * |
| * Licensed under the LGPL v2.1, code originally in uclibc |
| * |
| ****************************************************************************/ |
| #include <string.h> |
| |
| /* NOTE: This is the simple-minded O(len(s1) * len(s2)) worst-case approach. */ |
| |
| char *strstr(const char *s1, const char *s2) |
| { |
| register const char *s = s1; |
| register const char *p = s2; |
| |
| do { |
| if (!*p) { |
| return (char *) s1;; |
| } |
| if (*p == *s) { |
| ++p; |
| ++s; |
| } else { |
| p = s2; |
| if (!*s) { |
| return NULL; |
| } |
| s = ++s1; |
| } |
| } while (1); |
| } |