From 50a6ca39ad4ed01922aa4f755f0ca579788226cf Mon Sep 17 00:00:00 2001 From: Thomas Martitz Date: Thu, 6 May 2010 21:04:40 +0000 Subject: Move c/h files implementing/defining standard library stuff into a new libc directory, also standard'ify some parts of the code base (almost entirely #include fixes). This is to a) to cleanup firmware/common and firmware/include a bit, but also b) for Rockbox as an application which should use the host system's c library and headers, separating makes it easy to exclude our files from the build. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25850 a1c6a512-1295-4272-9138-f99709370657 --- firmware/libc/strstr.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 firmware/libc/strstr.c (limited to 'firmware/libc/strstr.c') diff --git a/firmware/libc/strstr.c b/firmware/libc/strstr.c new file mode 100644 index 0000000000..73fab1cc63 --- /dev/null +++ b/firmware/libc/strstr.c @@ -0,0 +1,38 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id: $ + * + * Copyright (C) 1991, 1992 Linus Torvalds + * (from linux/lib/string.c) + * + ****************************************************************************/ + +#include + +/** + * strstr - Find the first substring in a %NUL terminated string + * @s1: The string to be searched + * @s2: The string to search for + */ +char *strstr(const char *s1, const char *s2) +{ + int l1, l2; + + l2 = strlen(s2); + if (!l2) + return (char *)s1; + l1 = strlen(s1); + while (l1 >= l2) { + l1--; + if (!memcmp(s1, s2, l2)) + return (char *)s1; + s1++; + } + return NULL; +} + -- cgit v1.2.3