Move string.h functions in lib/ to lib/string

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3439 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 87 insertions, 0 deletions

diff --git a/nuttx/lib/string/lib_strtok.c b/nuttx/lib/string/lib_strtok.c
new file mode 100644
index 000000000..bafa94853
--- /dev/null
+++ b/nuttx/lib/string/lib_strtok.c
@@ -0,0 +1,87 @@
+/****************************************************************************
+ * lib/string/lib_strtok.c
+ *
+ *   Copyright (C) 2007, 2008, 2011 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <string.h>
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static char *g_saveptr = NULL;
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: strtok
+ *
+ * Description:
+ *    The  strtok()  function  parses  a string into a
+ *    sequence of tokens.  On the first call to strtok() the
+ *    string to be parsed should be specified in 'str'.  In
+ *    each subsequent call that should parse the same string, 
+ *    'str' should be NULL.
+ *
+ *    The 'delim' argument specifies a set of characters that
+ *    delimit the tokens in the parsed string.  The caller
+ *    may specify different strings in delim in successive
+ *    calls that parse the same string.
+ *
+ *    Each call to strtok() returns a pointer to a null-
+ *    terminated string containing the next token. This
+ *    string  does not include the delimiting character.  If
+ *    no more tokens are found, strtok() returns NULL.
+ *
+ *    A sequence of two or more contiguous delimiter
+ *    characters in the parsed string is considered to be a
+ *    single delimiter. Delimiter characters at the start or
+ *    end of the string are ignored.  The tokens returned by
+ *    strtok() are always non-empty strings.
+ *
+ * Return
+ *    strtok() returns a pointer to the next token, or NULL
+ *    if there are no more tokens.
+ *
+ ****************************************************************************/
+
+char *strtok(char *str, const char *delim)
+{
+  return strtok_r(str, delim, &g_saveptr);
+}