summaryrefslogtreecommitdiff
path: root/nuttx/lib/string
diff options
context:
space:
mode:
Diffstat (limited to 'nuttx/lib/string')
-rw-r--r--nuttx/lib/string/Make.defs43
-rw-r--r--nuttx/lib/string/lib_checkbase.c115
-rw-r--r--nuttx/lib/string/lib_isbasedigit.c105
-rw-r--r--nuttx/lib/string/lib_memcmp.c74
-rw-r--r--nuttx/lib/string/lib_memcpy.c60
-rw-r--r--nuttx/lib/string/lib_memmove.c72
-rw-r--r--nuttx/lib/string/lib_memset.c59
-rw-r--r--nuttx/lib/string/lib_skipspace.c69
-rw-r--r--nuttx/lib/string/lib_strcasecmp.c65
-rw-r--r--nuttx/lib/string/lib_strcat.c62
-rw-r--r--nuttx/lib/string/lib_strchr.c67
-rw-r--r--nuttx/lib/string/lib_strcmp.c59
-rw-r--r--nuttx/lib/string/lib_strcpy.c55
-rw-r--r--nuttx/lib/string/lib_strcspn.c67
-rw-r--r--nuttx/lib/string/lib_strdup.c61
-rw-r--r--nuttx/lib/string/lib_strerror.c237
-rw-r--r--nuttx/lib/string/lib_strlen.c55
-rw-r--r--nuttx/lib/string/lib_strncasecmp.c70
-rw-r--r--nuttx/lib/string/lib_strncat.c62
-rw-r--r--nuttx/lib/string/lib_strncmp.c65
-rw-r--r--nuttx/lib/string/lib_strncpy.c57
-rw-r--r--nuttx/lib/string/lib_strnlen.c62
-rw-r--r--nuttx/lib/string/lib_strpbrk.c85
-rw-r--r--nuttx/lib/string/lib_strrchr.c68
-rw-r--r--nuttx/lib/string/lib_strspn.c66
-rw-r--r--nuttx/lib/string/lib_strstr.c104
-rwxr-xr-xnuttx/lib/string/lib_strtod.c227
-rw-r--r--nuttx/lib/string/lib_strtok.c87
-rw-r--r--nuttx/lib/string/lib_strtokr.c157
-rw-r--r--nuttx/lib/string/lib_strtol.c103
-rw-r--r--nuttx/lib/string/lib_strtoll.c107
-rw-r--r--nuttx/lib/string/lib_strtoul.c98
-rw-r--r--nuttx/lib/string/lib_strtoull.c100
33 files changed, 2843 insertions, 0 deletions
diff --git a/nuttx/lib/string/Make.defs b/nuttx/lib/string/Make.defs
new file mode 100644
index 000000000..c8f5b05f3
--- /dev/null
+++ b/nuttx/lib/string/Make.defs
@@ -0,0 +1,43 @@
+############################################################################
+# lib/string/Make.defs
+#
+# Copyright (C) 2010 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.
+#
+############################################################################
+
+STRING_SRCS = lib_checkbase.c lib_isbasedigit.c lib_memset.c lib_memcpy.c \
+ lib_memcmp.c lib_memmove.c lib_skipspace.c lib_strcasecmp.c \
+ lib_strcat.c lib_strchr.c lib_strcpy.c lib_strcmp.c lib_strcspn.c \
+ lib_strdup.c lib_strerror.c lib_strlen.c lib_strnlen.c \
+ lib_strncasecmp.c lib_strncat.c lib_strncmp.c lib_strncpy.c \
+ lib_strpbrk.c lib_strrchr.c lib_strspn.c lib_strstr.c lib_strtok.c \
+ lib_strtokr.c lib_strtol.c lib_strtoll.c lib_strtoul.c \
+ lib_strtoull.c lib_strtod.c
diff --git a/nuttx/lib/string/lib_checkbase.c b/nuttx/lib/string/lib_checkbase.c
new file mode 100644
index 000000000..bec131b5c
--- /dev/null
+++ b/nuttx/lib/string/lib_checkbase.c
@@ -0,0 +1,115 @@
+/****************************************************************************
+ * lib/string/lib_checkbase.c
+ *
+ * Copyright (C) 2007, 2009, 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 <nuttx/config.h>
+
+#include <string.h>
+#include <ctype.h>
+
+#include "lib_internal.h"
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: lib_checkbase
+ *
+ * Description:
+ * This is part of the strol() family implementation. This function checks
+ * the initial part of a string to see if it can determine the numeric
+ * base that is represented.
+ *
+ * Assumptions:
+ * *ptr points to the first, non-whitespace character in the string.
+ *
+ ****************************************************************************/
+
+int lib_checkbase(int base, const char **pptr)
+{
+ const char *ptr = *pptr;
+
+ /* Check for unspecified base */
+
+ if (!base)
+ {
+ /* Assume base 10 */
+
+ base = 10;
+
+ /* Check for leading '0' - that would signify octal or hex (or binary) */
+
+ if (*ptr == '0')
+ {
+ /* Assume octal */
+
+ base = 8;
+ ptr++;
+
+ /* Check for hexidecimal */
+
+ if ((*ptr == 'X' || *ptr == 'x') &&
+ lib_isbasedigit(ptr[1], 16, NULL))
+ {
+ base = 16;
+ ptr++;
+ }
+ }
+ }
+
+ /* If it a hexidecimal representation, than discard any leading "0X" or "0x" */
+
+ else if (base == 16)
+ {
+ if (ptr[0] == '0' && (ptr[1] == 'X' || ptr[1] == 'x'))
+ {
+ ptr += 2;
+ }
+ }
+
+ /* Return the updated pointer and base */
+
+ *pptr = ptr;
+ return base;
+}
+
diff --git a/nuttx/lib/string/lib_isbasedigit.c b/nuttx/lib/string/lib_isbasedigit.c
new file mode 100644
index 000000000..26426e821
--- /dev/null
+++ b/nuttx/lib/string/lib_isbasedigit.c
@@ -0,0 +1,105 @@
+/****************************************************************************
+ * lib/string/lib_isbasedigit.c
+ *
+ * Copyright (C) 2007, 2009, 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 <nuttx/config.h>
+
+#include <stdbool.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "lib_internal.h"
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: lib_isbasedigit
+ *
+ * Description:
+ * Given an ASCII character, ch, and a base (1-36) do two
+ * things: 1) Determine if ch is a valid charcter, and 2)
+ * convert ch to its binary value.
+ *
+ ****************************************************************************/
+
+bool lib_isbasedigit(int ch, int base, int *value)
+{
+ bool ret = false;
+ int tmp = 0;
+
+ if (base <= 10)
+ {
+ if (ch >= '0' && ch <= base + '0' - 1)
+ {
+ tmp = ch - '0';
+ ret = true;
+ }
+ }
+ else if (base <= 36)
+ {
+ if (ch >= '0' && ch <= '9')
+ {
+ tmp = ch - '0';
+ ret = true;
+ }
+ else if (ch >= 'a' && ch <= 'a' + base - 11)
+ {
+ tmp = ch - 'a' + 10;
+ ret = true;
+ }
+ else if (ch >= 'A' && ch <= 'A' + base - 11)
+ {
+ tmp = ch - 'A' + 10;
+ ret = true;
+ }
+ }
+
+ if (value)
+ {
+ *value = tmp;
+ }
+ return ret;
+}
+
+
diff --git a/nuttx/lib/string/lib_memcmp.c b/nuttx/lib/string/lib_memcmp.c
new file mode 100644
index 000000000..cd874a85e
--- /dev/null
+++ b/nuttx/lib/string/lib_memcmp.c
@@ -0,0 +1,74 @@
+/************************************************************
+ * lib/string/lib_memcmp.c
+ *
+ * Copyright (C) 2007, 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.
+ *
+ ************************************************************/
+
+/************************************************************
+ * Compilation Switches
+ ************************************************************/
+
+/************************************************************
+ * Included Files
+ ************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/types.h>
+#include <string.h>
+
+/************************************************************
+ * Global Functions
+ ************************************************************/
+
+#ifndef CONFIG_ARCH_MEMCMP
+int memcmp(const void *s1, const void *s2, size_t n)
+{
+ unsigned char *p1 = (unsigned char *)s1;
+ unsigned char *p2 = (unsigned char *)s2;
+
+ while (n-- > 0)
+ {
+ if (*p1 < *p2)
+ {
+ return -1;
+ }
+ else if (*p1 > *p2)
+ {
+ return 1;
+ }
+
+ p1++;
+ p2++;
+ }
+ return 0;
+}
+#endif
diff --git a/nuttx/lib/string/lib_memcpy.c b/nuttx/lib/string/lib_memcpy.c
new file mode 100644
index 000000000..745bafe98
--- /dev/null
+++ b/nuttx/lib/string/lib_memcpy.c
@@ -0,0 +1,60 @@
+/************************************************************
+ * lib/string/lib_memcpy.c
+ *
+ * Copyright (C) 2007, 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.
+ *
+ ************************************************************/
+
+/************************************************************
+ * Compilation Switches
+ ************************************************************/
+
+/************************************************************
+ * Included Files
+ ************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/types.h>
+#include <string.h>
+
+/************************************************************
+ * Global Functions
+ ************************************************************/
+
+#ifndef CONFIG_ARCH_MEMCPY
+void *memcpy(void *dest, const void *src, size_t n)
+{
+ unsigned char *pout = (unsigned char*)dest;
+ unsigned char *pin = (unsigned char*)src;
+ while (n-- > 0) *pout++ = *pin++;
+ return dest;
+}
+#endif
diff --git a/nuttx/lib/string/lib_memmove.c b/nuttx/lib/string/lib_memmove.c
new file mode 100644
index 000000000..97bac99ed
--- /dev/null
+++ b/nuttx/lib/string/lib_memmove.c
@@ -0,0 +1,72 @@
+/************************************************************
+ * lib/string/lib_memmove.c
+ *
+ * Copyright (C) 2007, 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.
+ *
+ ************************************************************/
+
+/************************************************************
+ * Compilation Switches
+ ************************************************************/
+
+/************************************************************
+ * Included Files
+ ************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/types.h>
+#include <string.h>
+
+/************************************************************
+ * Global Functions
+ ************************************************************/
+
+#ifndef CONFIG_ARCH_MEMMOVE
+void *memmove(void *dest, const void *src, size_t count)
+{
+ char *tmp, *s;
+ if (dest <= src)
+ {
+ tmp = (char*) dest;
+ s = (char*) src;
+ while (count--)
+ *tmp++ = *s++;
+ }
+ else
+ {
+ tmp = (char*) dest + count;
+ s = (char*) src + count;
+ while (count--)
+ *--tmp = *--s;
+ }
+ return dest;
+}
+#endif
diff --git a/nuttx/lib/string/lib_memset.c b/nuttx/lib/string/lib_memset.c
new file mode 100644
index 000000000..f3a5497a9
--- /dev/null
+++ b/nuttx/lib/string/lib_memset.c
@@ -0,0 +1,59 @@
+/************************************************************
+ * lib/string/lib_memset.c
+ *
+ * Copyright (C) 2007, 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.
+ *
+ ************************************************************/
+
+/************************************************************
+ * Compilation Switches
+ ************************************************************/
+
+/************************************************************
+ * Included Files
+ ************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/types.h>
+#include <string.h>
+
+/************************************************************
+ * Global Functions
+ ************************************************************/
+
+#ifndef CONFIG_ARCH_MEMSET
+void *memset(void *s, int c, size_t n)
+{
+ unsigned char *p = (unsigned char*)s;
+ while (n-- > 0) *p++ = c;
+ return s;
+}
+#endif
diff --git a/nuttx/lib/string/lib_skipspace.c b/nuttx/lib/string/lib_skipspace.c
new file mode 100644
index 000000000..826559efe
--- /dev/null
+++ b/nuttx/lib/string/lib_skipspace.c
@@ -0,0 +1,69 @@
+/****************************************************************************
+ * lib/string/lib_skipspace.c
+ *
+ * Copyright (C) 2007, 2009, 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 <nuttx/config.h>
+
+#include <string.h>
+#include <ctype.h>
+#include "lib_internal.h"
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: lib_skipspace
+ *
+ * Description:
+ * Skip over leading whitespace
+ *
+ ****************************************************************************/
+
+void lib_skipspace(const char **pptr)
+{
+ const char *ptr = *pptr;
+ while (isspace(*ptr)) ptr++;
+ *pptr = ptr;
+}
+
+
diff --git a/nuttx/lib/string/lib_strcasecmp.c b/nuttx/lib/string/lib_strcasecmp.c
new file mode 100644
index 000000000..ed5217831
--- /dev/null
+++ b/nuttx/lib/string/lib_strcasecmp.c
@@ -0,0 +1,65 @@
+/****************************************************************************
+ * lib/string/lib_strcasecmp.c
+ *
+ * Copyright (C) 2008-2009, 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 <nuttx/config.h>
+
+#include <string.h>
+#include <ctype.h>
+
+/****************************************************************************
+ * Public Functions
+ *****************************************************************************/
+
+#ifndef CONFIG_ARCH_STRCMP
+int strcasecmp(const char *cs, const char *ct)
+{
+ int result;
+ for (;;)
+ {
+ if ((result = (int)toupper(*cs) - (int)toupper(*ct)) != 0 || !*cs)
+ {
+ break;
+ }
+
+ cs++;
+ ct++;
+ }
+ return result;
+}
+#endif
diff --git a/nuttx/lib/string/lib_strcat.c b/nuttx/lib/string/lib_strcat.c
new file mode 100644
index 000000000..2d12dd5a6
--- /dev/null
+++ b/nuttx/lib/string/lib_strcat.c
@@ -0,0 +1,62 @@
+/****************************************************************************
+ * lib/string/lib_strcat.c
+ *
+ * Copyright (C) 2007-2009, 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 <nuttx/config.h>
+
+#include <string.h>
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+#ifndef CONFIG_ARCH_STRCAT
+char *strcat(char *dest, const char *src)
+{
+ char *ret = dest;
+
+ dest += strlen(dest);
+ while (*src != '\0')
+ {
+ *dest++ = *src++;
+ }
+ *dest = '\0';
+
+ return ret;
+}
+#endif
diff --git a/nuttx/lib/string/lib_strchr.c b/nuttx/lib/string/lib_strchr.c
new file mode 100644
index 000000000..1086f128d
--- /dev/null
+++ b/nuttx/lib/string/lib_strchr.c
@@ -0,0 +1,67 @@
+/****************************************************************************
+ * lib/string/lib_strchr.c
+ *
+ * Copyright (C) 2007, 2009, 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 <nuttx/config.h>
+
+#include <string.h>
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/* The strchr() function returns a pointer to the first
+ * occurrence of the character c in the string s.
+ */
+
+char *strchr(const char *s, int c)
+{
+ if (s)
+ {
+ for (; *s; s++)
+ {
+ if (*s == c)
+ {
+ return (char*)s;
+ }
+ }
+ }
+
+ return NULL;
+}
+
diff --git a/nuttx/lib/string/lib_strcmp.c b/nuttx/lib/string/lib_strcmp.c
new file mode 100644
index 000000000..1d78cb049
--- /dev/null
+++ b/nuttx/lib/string/lib_strcmp.c
@@ -0,0 +1,59 @@
+/****************************************************************************
+ * lib/string/lib_strcmp.c
+ *
+ * Copyright (C) 2007-2009, 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 <nuttx/config.h>
+
+#include <string.h>
+
+/****************************************************************************
+ * Public Functions
+ *****************************************************************************/
+
+#ifndef CONFIG_ARCH_STRCMP
+int strcmp(const char *cs, const char *ct)
+{
+ register signed char result;
+ for (;;)
+ {
+ if ((result = *cs - *ct++) != 0 || !*cs++)
+ break;
+ }
+ return result;
+}
+#endif
diff --git a/nuttx/lib/string/lib_strcpy.c b/nuttx/lib/string/lib_strcpy.c
new file mode 100644
index 000000000..774e15534
--- /dev/null
+++ b/nuttx/lib/string/lib_strcpy.c
@@ -0,0 +1,55 @@
+/************************************************************************
+ * lib/string/lib_strcpy.c
+ *
+ * Copyright (C) 2007, 2009, 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 <nuttx/config.h>
+
+#include <string.h>
+
+/************************************************************************
+ * Global Functions
+ ************************************************************************/
+
+#ifndef CONFIG_ARCH_STRCPY
+char *strcpy(char *dest, const char *src)
+{
+ char *tmp = dest;
+ while ((*dest++ = *src++) != '\0');
+ return tmp;
+}
+#endif
diff --git a/nuttx/lib/string/lib_strcspn.c b/nuttx/lib/string/lib_strcspn.c
new file mode 100644
index 000000000..b28f22343
--- /dev/null
+++ b/nuttx/lib/string/lib_strcspn.c
@@ -0,0 +1,67 @@
+/****************************************************************************
+ * lib/string/lib_strcspn.c
+ *
+ * Copyright (C) 2007, 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Compilation Switches
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/types.h>
+#include <string.h>
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: strcspn
+ *
+ * Description:
+ * strspn() calculates the length of the initial segment of s which
+ * consists entirely of characters not in reject
+ *
+ ****************************************************************************/
+
+size_t strcspn(const char *s, const char *reject)
+{
+ size_t i;
+ for (i = 0; s[i] && strchr(reject, s[i]) == NULL; i++);
+ return i;
+}
+
diff --git a/nuttx/lib/string/lib_strdup.c b/nuttx/lib/string/lib_strdup.c
new file mode 100644
index 000000000..04ecaffbe
--- /dev/null
+++ b/nuttx/lib/string/lib_strdup.c
@@ -0,0 +1,61 @@
+/************************************************************************
+ * lib/string//lib_strdup.c
+ *
+ * Copyright (C) 2007, 2009, 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 <nuttx/config.h>
+
+#include <stdlib.h>
+#include <string.h>
+
+/************************************************************************
+ * Global Functions
+ ************************************************************************/
+
+FAR char *strdup(const char *s)
+{
+ FAR char *news = NULL;
+ if (s)
+ {
+ news = (FAR char*)malloc(strlen(s) + 1);
+ if (news)
+ {
+ strcpy(news, s);
+ }
+ }
+ return news;
+}
diff --git a/nuttx/lib/string/lib_strerror.c b/nuttx/lib/string/lib_strerror.c
new file mode 100644
index 000000000..61538952d
--- /dev/null
+++ b/nuttx/lib/string/lib_strerror.c
@@ -0,0 +1,237 @@
+/************************************************************************
+ * lib/string/lib_strerror.c
+ *
+ * Copyright (C) 2007, 2009, 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 <nuttx/config.h>
+
+#include <stdint.h>
+#include <string.h>
+#include <errno.h>
+
+/************************************************************************
+ * Definitions
+ ************************************************************************/
+
+/************************************************************************
+ * Private Types
+ ************************************************************************/
+
+struct errno_strmap_s
+{
+ uint8_t errnum;
+ const char *str;
+};
+
+/************************************************************************
+ * Private Data
+ ************************************************************************/
+
+/* This table maps all error numbers to descriptive strings.
+ * The only assumption that the code makes with regard to this
+ * this table is that it is order by error number.
+ *
+ * The size of this table is quite large. Its size can be
+ * reduced by eliminating some of the more obscure error
+ * strings.
+ */
+
+struct errno_strmap_s g_errnomap[] =
+{
+ { EPERM, EPERM_STR },
+ { ENOENT, ENOENT_STR },
+ { ESRCH, ESRCH_STR },
+ { EINTR, EINTR_STR },
+ { EIO, EIO_STR },
+ { ENXIO, ENXIO_STR },
+ { E2BIG, E2BIG_STR },
+ { ENOEXEC, ENOEXEC_STR },
+ { EBADF, EBADF_STR },
+ { ECHILD, ECHILD_STR },
+ { EAGAIN, EAGAIN_STR },
+ { ENOMEM, ENOMEM_STR },
+ { EACCES, EACCES_STR },
+ { EFAULT, EFAULT_STR },
+ { ENOTBLK, ENOTBLK_STR },
+ { EBUSY, EBUSY_STR },
+ { EEXIST, EEXIST_STR },
+ { EXDEV, EXDEV_STR },
+ { ENODEV, ENODEV_STR },
+ { ENOTDIR, ENOTDIR_STR },
+ { EISDIR, EISDIR_STR },
+ { EINVAL, EINVAL_STR },
+ { ENFILE, ENFILE_STR },
+ { EMFILE, EMFILE_STR },
+ { ENOTTY, ENOTTY_STR },
+ { ETXTBSY, ETXTBSY_STR },
+ { EFBIG, EFBIG_STR },
+ { ENOSPC, ENOSPC_STR },
+ { ESPIPE, ESPIPE_STR },
+ { EROFS, EROFS_STR },
+ { EMLINK, EMLINK_STR },
+ { EPIPE, EPIPE_STR },
+ { EDOM, EDOM_STR },
+ { ERANGE, ERANGE_STR },
+ { EDEADLK, EDEADLK_STR },
+ { ENAMETOOLONG, ENAMETOOLONG_STR },
+ { ENOLCK, ENOLCK_STR },
+ { ENOSYS, ENOSYS_STR },
+ { ENOTEMPTY, ENOTEMPTY_STR },
+ { ELOOP, ELOOP_STR },
+ { ENOMSG, ENOMSG_STR },
+ { EIDRM, EIDRM_STR },
+ { ECHRNG, ECHRNG_STR },
+ { EL2NSYNC, EL2NSYNC_STR },
+ { EL3HLT, EL3HLT_STR },
+ { EL3RST, EL3RST_STR },
+ { ELNRNG, ELNRNG_STR },
+ { EUNATCH, EUNATCH_STR },
+ { ENOCSI, ENOCSI_STR },
+ { EL2HLT, EL2HLT_STR },
+ { EBADE, EBADE_STR },
+ { EBADR, EBADR_STR },
+ { EXFULL, EXFULL_STR },
+ { ENOANO, ENOANO_STR },
+ { EBADRQC, EBADRQC_STR },
+ { EBADSLT, EBADSLT_STR },
+ { EBFONT, EBFONT_STR },
+ { ENOSTR, ENOSTR_STR },
+ { ENODATA, ENODATA_STR },
+ { ETIME, ETIME_STR },
+ { ENOSR, ENOSR_STR },
+ { ENONET, ENONET_STR },
+ { ENOPKG, ENOPKG_STR },
+ { EREMOTE, EREMOTE_STR },
+ { ENOLINK, ENOLINK_STR },
+ { EADV, EADV_STR },
+ { ESRMNT, ESRMNT_STR },
+ { ECOMM, ECOMM_STR },
+ { EPROTO, EPROTO_STR },
+ { EMULTIHOP, EMULTIHOP_STR },
+ { EDOTDOT, EDOTDOT_STR },
+ { EBADMSG, EBADMSG_STR },
+ { EOVERFLOW, EOVERFLOW_STR },
+ { ENOTUNIQ, ENOTUNIQ_STR },
+ { EBADFD, EBADFD_STR },
+ { EREMCHG, EREMCHG_STR },
+ { ELIBACC, ELIBACC_STR },
+ { ELIBBAD, ELIBBAD_STR },
+ { ELIBSCN, ELIBSCN_STR },
+ { ELIBMAX, ELIBMAX_STR },
+ { ELIBEXEC, ELIBEXEC_STR },
+ { EILSEQ, EILSEQ_STR },
+ { ERESTART, ERESTART_STR },
+ { ESTRPIPE, ESTRPIPE_STR },
+ { EUSERS, EUSERS_STR },
+ { ENOTSOCK, ENOTSOCK_STR },
+ { EDESTADDRREQ, EDESTADDRREQ_STR },
+ { EMSGSIZE, EMSGSIZE_STR },
+ { EPROTOTYPE, EPROTOTYPE_STR },
+ { ENOPROTOOPT, ENOPROTOOPT_STR },
+ { EPROTONOSUPPORT, EPROTONOSUPPORT_STR },
+ { ESOCKTNOSUPPORT, ESOCKTNOSUPPORT_STR },
+ { EOPNOTSUPP, EOPNOTSUPP_STR },
+ { EPFNOSUPPORT, EPFNOSUPPORT_STR },
+ { EAFNOSUPPORT, EAFNOSUPPORT_STR },
+ { EADDRINUSE, EADDRINUSE_STR },
+ { EADDRNOTAVAIL, EADDRNOTAVAIL_STR },
+ { ENETDOWN, ENETDOWN_STR },
+ { ENETUNREACH, ENETUNREACH_STR },
+ { ENETRESET, ENETRESET_STR },
+ { ECONNABORTED, ECONNABORTED_STR },
+ { ECONNRESET, ECONNRESET_STR },
+ { ENOBUFS, ENOBUFS_STR },
+ { EISCONN, EISCONN_STR },
+ { ENOTCONN, ENOTCONN_STR },
+ { ESHUTDOWN, ESHUTDOWN_STR },
+ { ETOOMANYREFS, ETOOMANYREFS_STR },
+ { ETIMEDOUT, ETIMEDOUT_STR },
+ { ECONNREFUSED, ECONNREFUSED_STR },
+ { EHOSTDOWN, EHOSTDOWN_STR },
+ { EHOSTUNREACH, EHOSTUNREACH_STR },
+ { EALREADY, EALREADY_STR },
+ { EINPROGRESS, EINPROGRESS_STR },
+ { ESTALE, ESTALE_STR },
+ { EUCLEAN, EUCLEAN_STR },
+ { ENOTNAM, ENOTNAM_STR },
+ { ENAVAIL, ENAVAIL_STR },
+ { EISNAM, EISNAM_STR },
+ { EREMOTEIO, EREMOTEIO_STR },
+ { EDQUOT, EDQUOT_STR },
+ { ENOMEDIUM, ENOMEDIUM_STR },
+ { EMEDIUMTYPE, EMEDIUMTYPE_STR }
+};
+
+#define NERRNO_STRS (sizeof(g_errnomap) / sizeof(struct errno_strmap_s))
+
+/************************************************************************
+ * Private Functions
+ ************************************************************************/
+
+/************************************************************************
+ * Public Functions
+ ************************************************************************/
+
+/************************************************************************
+ * Name: strerror
+ ************************************************************************/
+
+const char *strerror(int errnum)
+{
+ int ndxlow = 0;
+ int ndxhi = NERRNO_STRS - 1;
+ int ndxmid;
+
+ do
+ {
+ ndxmid = (ndxlow + ndxhi) >> 1;
+ if (errnum > g_errnomap[ndxmid].errnum)
+ {
+ ndxlow = ndxmid + 1;
+ }
+ else if (errnum < g_errnomap[ndxmid].errnum)
+ {
+ ndxhi = ndxmid - 1;
+ }
+ else
+ {
+ return g_errnomap[ndxmid].str;
+ }
+ }
+ while (ndxlow <= ndxhi);
+ return "Unknown error";
+}
diff --git a/nuttx/lib/string/lib_strlen.c b/nuttx/lib/string/lib_strlen.c
new file mode 100644
index 000000000..ee964c137
--- /dev/null
+++ b/nuttx/lib/string/lib_strlen.c
@@ -0,0 +1,55 @@
+/****************************************************************************
+ * lib/string/lib_strlen.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 <nuttx/config.h>
+#include <sys/types.h>
+#include <string.h>
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+#ifndef CONFIG_ARCH_STRLEN
+size_t strlen(const char *s)
+{
+ const char *sc;
+ for (sc = s; *sc != '\0'; ++sc);
+ return sc - s;
+}
+#endif
diff --git a/nuttx/lib/string/lib_strncasecmp.c b/nuttx/lib/string/lib_strncasecmp.c
new file mode 100644
index 000000000..78b18a3fb
--- /dev/null
+++ b/nuttx/lib/string/lib_strncasecmp.c
@@ -0,0 +1,70 @@
+/****************************************************************************
+ * lib/string/lib_strncasecmp.c
+ *
+ * Copyright (C) 2007-2009, 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.
+ *
+ *****************************************************************************/
+
+/****************************************************************************
+ * Compilation Switches
+ *****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ *****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <string.h>
+#include <ctype.h>
+
+/****************************************************************************
+ * Global Functions
+ *****************************************************************************/
+
+#ifndef CONFIG_ARCH_STRNCASECMP
+int strncasecmp(const char *cs, const char *ct, size_t nb)
+{
+ int result = 0;
+ for (; nb > 0; nb--)
+ {
+ if ((result = (int)toupper(*cs) - (int)toupper(*ct)) != 0 || !*cs)
+ {
+ break;
+ }
+
+ cs++;
+ ct++;
+ }
+ return result;
+}
+#endif
diff --git a/nuttx/lib/string/lib_strncat.c b/nuttx/lib/string/lib_strncat.c
new file mode 100644
index 000000000..6b7d54f81
--- /dev/null
+++ b/nuttx/lib/string/lib_strncat.c
@@ -0,0 +1,62 @@
+/************************************************************
+ * lib/string/lib_strncat.c
+ *
+ * Copyright (C) 2007, 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 <nuttx/config.h>
+#include <sys/types.h>
+#include <string.h>
+
+/************************************************************
+ * Global Functions
+ ************************************************************/
+
+#ifndef CONFIG_ARCH_STRNCAT
+char *strncat(char *dest, const char *src, size_t n)
+{
+ char *ret = dest;
+
+ dest += strlen(dest);
+ for (; n > 0 && *src != '\0' ; n--)
+ {
+ *dest++ = *src++;
+ }
+ *dest = '\0';
+
+ return ret;
+}
+#endif
diff --git a/nuttx/lib/string/lib_strncmp.c b/nuttx/lib/string/lib_strncmp.c
new file mode 100644
index 000000000..147dfc536
--- /dev/null
+++ b/nuttx/lib/string/lib_strncmp.c
@@ -0,0 +1,65 @@
+/****************************************************************************
+ * lib/lib_strncmp.c
+ *
+ * Copyright (C) 2007-2009 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.
+ *
+ *****************************************************************************/
+
+/****************************************************************************
+ * Compilation Switches
+ *****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ *****************************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/types.h>
+#include <string.h>
+
+/****************************************************************************
+ * Global Functions
+ *****************************************************************************/
+
+#ifndef CONFIG_ARCH_STRNCMP
+int strncmp(const char *cs, const char *ct, size_t nb)
+{
+ int result = 0;
+ for (; nb > 0; nb--)
+ {
+ if ((result = (int)*cs - (int)*ct++) != 0 || !*cs++)
+ {
+ break;
+ }
+ }
+ return result;
+}
+#endif
diff --git a/nuttx/lib/string/lib_strncpy.c b/nuttx/lib/string/lib_strncpy.c
new file mode 100644
index 000000000..b5702cae2
--- /dev/null
+++ b/nuttx/lib/string/lib_strncpy.c
@@ -0,0 +1,57 @@
+/************************************************************
+ * lib/string/lib_strncpy.c
+ *
+ * Copyright (C) 2007, 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 <nuttx/config.h>
+#include <sys/types.h>
+#include <string.h>
+
+/************************************************************
+ * Global Functions
+ ************************************************************/
+
+#ifndef CONFIG_ARCH_STRNCPY
+char *strncpy(char *dest, const char *src, size_t n)
+{
+ char *ret = dest; /* Value to be returned */
+ char *end = dest + n; /* End of dest buffer + 1 byte */
+
+ while ((*dest++ = *src++) != '\0' && dest != end);
+ return ret;
+}
+#endif
diff --git a/nuttx/lib/string/lib_strnlen.c b/nuttx/lib/string/lib_strnlen.c
new file mode 100644
index 000000000..c2ffc248e
--- /dev/null
+++ b/nuttx/lib/string/lib_strnlen.c
@@ -0,0 +1,62 @@
+/****************************************************************************
+ * lib/string/lib_strnlen.c
+ *
+ * This file is part of NuttX, contributed by Michael Hrabanek
+ *
+ * Copyright (C) 2010 Gregory Nutt. All rights reserved.
+ * Author: Michael Hrabanek
+ *
+ * Derives from the file lib/lib_strlen.c:
+ *
+ * Copyright (C) 2007, 2008, 2010 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 <nuttx/config.h>
+#include <sys/types.h>
+#include <string.h>
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+#ifndef CONFIG_ARCH_STRNLEN
+size_t strnlen(const char *s, size_t maxlen)
+{
+ const char *sc;
+ for (sc = s; maxlen != 0 && *sc != '\0'; maxlen--, ++sc);
+ return sc - s;
+}
+#endif
diff --git a/nuttx/lib/string/lib_strpbrk.c b/nuttx/lib/string/lib_strpbrk.c
new file mode 100644
index 000000000..134058775
--- /dev/null
+++ b/nuttx/lib/string/lib_strpbrk.c
@@ -0,0 +1,85 @@
+/****************************************************************************
+ * lib/string/lib_strpbrk.c
+ *
+ * Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use str 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 str binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer str
+ * 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 <nuttx/config.h>
+
+#include <string.h>
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+char *strpbrk(const char *str, const char *charset)
+{
+ /* Sanity checking */
+
+#ifdef CONFIG_DEBUG
+ if (!str || !charset)
+ {
+ return NULL;
+ }
+#endif
+
+ /* Check each character in the string */
+
+ while (*str)
+ {
+ /* Check if the character from the string matches any character in the charset */
+
+ if (strchr(charset, *str) != NULL)
+ {
+ /* Yes, then this position must be the first occurrence in string */
+
+ return (char*)str;
+ }
+
+ /* This character from the strings matches none of those in the charset.
+ * Try the next character from the string.
+ */
+
+ str++;
+ }
+
+ /* We have looked at every character in the string, and none of them match any of
+ * the characters in charset.
+ */
+
+ return NULL;
+}
+
diff --git a/nuttx/lib/string/lib_strrchr.c b/nuttx/lib/string/lib_strrchr.c
new file mode 100644
index 000000000..c80542341
--- /dev/null
+++ b/nuttx/lib/string/lib_strrchr.c
@@ -0,0 +1,68 @@
+/************************************************************************
+ * lib/string/lib_strrchr.c
+ *
+ * Copyright (C) 2007, 2009, 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 <nuttx/config.h>
+
+#include <string.h>
+
+/************************************************************************
+ * Global Functions
+ ************************************************************************/
+
+/* The strrchr() function returns a pointer to the last
+ * occurrence of the character c in the string s.
+ */
+
+char *strrchr(const char *s, int c)
+{
+ if (s)
+ {
+ const char *p = &s[strlen(s) - 1];
+ for (; p > s; p--)
+ {
+ if (*p == c)
+ {
+ return (char*)p;
+ }
+ }
+ }
+
+ return NULL;
+}
+
diff --git a/nuttx/lib/string/lib_strspn.c b/nuttx/lib/string/lib_strspn.c
new file mode 100644
index 000000000..e5cab9ad6
--- /dev/null
+++ b/nuttx/lib/string/lib_strspn.c
@@ -0,0 +1,66 @@
+/****************************************************************************
+ * lib/string/lib_strspn.c
+ *
+ * Copyright (C) 2007, 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Compilation Switches
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/types.h>
+#include <string.h>
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: strspn
+ *
+ * Description:
+ * strspn() calculates the length of the initial segment of s which
+ * consists entirely of characters in accept.
+ *
+ ****************************************************************************/
+
+size_t strspn(const char *s, const char *accept)
+{
+ size_t i;
+ for (i = 0; s[i] && strchr(accept, s[i]) != NULL; i++);
+ return i;
+}
diff --git a/nuttx/lib/string/lib_strstr.c b/nuttx/lib/string/lib_strstr.c
new file mode 100644
index 000000000..27ca6e19b
--- /dev/null
+++ b/nuttx/lib/string/lib_strstr.c
@@ -0,0 +1,104 @@
+/****************************************************************************
+ * lib/string/lib_strstr.c
+ *
+ * Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use str 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 str binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer str
+ * 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 <nuttx/config.h>
+
+#include <string.h>
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+char *strstr(const char *str, const char *substr)
+{
+ const char *candidate; /* Candidate in str with matching start character */
+ char ch; /* First character of the substring */
+ int len; /* The length of the substring */
+
+ /* Special case the empty substring */
+
+ len = strlen(substr);
+ ch = *substr;
+
+ if (!ch)
+ {
+ /* We'll say that an empty substring matches at the beginning of
+ * the string
+ */
+
+ return (char*)str;
+ }
+
+ /* Search for the substring */
+
+ candidate = str;
+ for (;;)
+ {
+ /* strchr() will return a pointer to the next occurrence of the
+ * character ch in the string
+ */
+
+ candidate = strchr(candidate, ch);
+ if (!candidate || strlen(candidate) < len)
+ {
+ /* First character of the substring does not appear in the string
+ * or the remainder of the string is not long enough to contain the
+ * substring.
+ */
+
+ return NULL;
+ }
+
+ /* Check if this is the beginning of a matching substring */
+
+ if (strncmp(candidate, substr, len) == 0)
+ {
+ return (char*)candidate;
+ }
+
+ /* No, find the next candidate after this one */
+
+ candidate++;
+ }
+
+ /* Won't get here, but some compilers might complain */
+
+ return NULL;
+}
+
diff --git a/nuttx/lib/string/lib_strtod.c b/nuttx/lib/string/lib_strtod.c
new file mode 100755
index 000000000..26480f925
--- /dev/null
+++ b/nuttx/lib/string/lib_strtod.c
@@ -0,0 +1,227 @@
+/****************************************************************************
+ * lib/string/lib_strtod.c
+ * Convert string to double
+ *
+ * Copyright (C) 2002 Michael Ringgaard. All rights reserved.
+ * Copyright (C) 2006-2007 H. Peter Anvin.
+ *
+ * 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 of the project 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 <stdlib.h>
+#include <ctype.h>
+#include <errno.h>
+
+/****************************************************************************
+ * Pre-processor definitions
+ ****************************************************************************/
+
+/* These are predefined with GCC, but could be issues for other compilers. If
+ * not defined, an arbitrary big number is put in for now. These should be
+ * added to nuttx/compiler for your compiler.
+ */
+
+#if !defined(__DBL_MIN_EXP__) || !defined(__DBL_MAX_EXP__)
+# ifdef CONFIG_CPP_HAVE_WARNING
+# warning "Size of exponent is unknown"
+# endif
+# undef __DBL_MIN_EXP__
+# define __DBL_MIN_EXP__ (-1021)
+# undef __DBL_MAX_EXP__
+# define __DBL_MAX_EXP__ (1024)
+#endif
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static inline int is_real(double x)
+{
+ const double_t infinite = 1.0/0.0;
+ return (x < infinite) && (x >= -infinite);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/***************************************************(************************
+ * Name: strtod
+ *
+ * Description:
+ * Convert a string to a double value
+ *
+ ****************************************************************************/
+
+double_t strtod(const char *str, char **endptr)
+{
+ double_t number;
+ int exponent;
+ int negative;
+ char *p = (char *) str;
+ double p10;
+ int n;
+ int num_digits;
+ int num_decimals;
+ const double_t infinite = 1.0/0.0;
+
+ /* Skip leading whitespace */
+
+ while (isspace(*p))
+ {
+ p++;
+ }
+
+ /* Handle optional sign */
+
+ negative = 0;
+ switch (*p)
+ {
+ case '-':
+ negative = 1; /* Fall through to increment position */
+ case '+':
+ p++;
+ }
+
+ number = 0.;
+ exponent = 0;
+ num_digits = 0;
+ num_decimals = 0;
+
+ /* Process string of digits */
+
+ while (isdigit(*p))
+ {
+ number = number * 10. + (*p - '0');
+ p++;
+ num_digits++;
+ }
+
+ /* Process decimal part */
+
+ if (*p == '.')
+ {
+ p++;
+
+ while (isdigit(*p))
+ {
+ number = number * 10. + (*p - '0');
+ p++;
+ num_digits++;
+ num_decimals++;
+ }
+
+ exponent -= num_decimals;
+ }
+
+ if (num_digits == 0)
+ {
+ errno = ERANGE;
+ return 0.0;
+ }
+
+ /* Correct for sign */
+
+ if (negative)
+ {
+ number = -number;
+ }
+
+ /* Process an exponent string */
+
+ if (*p == 'e' || *p == 'E')
+ {
+ /* Handle optional sign */
+
+ negative = 0;
+ switch(*++p)
+ {
+ case '-':
+ negative = 1; /* Fall through to increment pos */
+ case '+':
+ p++;
+ }
+
+ /* Process string of digits */
+
+ n = 0;
+ while (isdigit(*p))
+ {
+ n = n * 10 + (*p - '0');
+ p++;
+ }
+
+ if (negative)
+ {
+ exponent -= n;
+ }
+ else
+ {
+ exponent += n;
+ }
+ }
+
+ if (exponent < __DBL_MIN_EXP__ ||
+ exponent > __DBL_MAX_EXP__)
+ {
+ errno = ERANGE;
+ return infinite;
+ }
+
+ /* Scale the result */
+
+ p10 = 10.;
+ n = exponent;
+ if (n < 0) n = -n;
+ while (n)
+ {
+ if (n & 1)
+ {
+ if (exponent < 0)
+ {
+ number /= p10;
+ }
+ else
+ {
+ number *= p10;
+ }
+ }
+ n >>= 1;
+ p10 *= p10;
+ }
+
+ if (!is_real(number)) errno = ERANGE;
+ if (endptr) *endptr = p;
+
+ return number;
+}
+
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);
+}
diff --git a/nuttx/lib/string/lib_strtokr.c b/nuttx/lib/string/lib_strtokr.c
new file mode 100644
index 000000000..366a31819
--- /dev/null
+++ b/nuttx/lib/string/lib_strtokr.c
@@ -0,0 +1,157 @@
+/****************************************************************************
+ * lib/string/lib_strtokr.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
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: strtok_r
+ *
+ * Description:
+ * The strtok_r() function is a reentrant version strtok().
+ * Like strtok(), it 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 'saveptr' argument is a pointer to a char *
+ * variable that is used internally by strtok_r() in
+ * order to maintain context between successive calls
+ * that parse the same string.
+ *
+ * On the first call to strtok_r(), 'str' should point to the
+ * string to be parsed, and the value of 'saveptr' is
+ * ignored. In subsequent calls, 'str' should be NULL, and
+ * saveptr should be unchanged since the previous call.
+ *
+ * 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_r() 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_r() 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_r() returns a pointer to the next token, or NULL
+ * if there are no more tokens.
+ *
+ ****************************************************************************/
+
+char *strtok_r(char *str, const char *delim, char **saveptr)
+{
+ char *pbegin;
+ char *pend = NULL;
+
+ /* Decide if we are starting a new string or continuing from
+ * the point we left off.
+ */
+
+ if (str)
+ {
+ pbegin = str;
+ }
+ else if (saveptr && *saveptr)
+ {
+ pbegin = *saveptr;
+ }
+ else
+ {
+ return NULL;
+ }
+
+ /* Find the beginning of the next token */
+
+ for (;
+ *pbegin && strchr(delim, *pbegin) != NULL;
+ pbegin++);
+
+ /* If we are at the end of the string with nothing
+ * but delimiters found, then return NULL.
+ */
+
+ if (!*pbegin)
+ {
+ return NULL;
+ }
+
+ /* Find the end of the token */
+
+ for (pend = pbegin + 1;
+ *pend && strchr(delim, *pend) == NULL;
+ pend++);
+
+
+ /* pend either points to the end of the string or to
+ * the first delimiter after the string.
+ */
+
+ if (*pend)
+ {
+ /* Turn the delimiter into a null terminator */
+
+ *pend++ = '\0';
+ }
+
+ /* Save the pointer where we left off and return the
+ * beginning of the token.
+ */
+
+ if (saveptr)
+ {
+ *saveptr = pend;
+ }
+ return pbegin;
+}
diff --git a/nuttx/lib/string/lib_strtol.c b/nuttx/lib/string/lib_strtol.c
new file mode 100644
index 000000000..4f6904793
--- /dev/null
+++ b/nuttx/lib/string/lib_strtol.c
@@ -0,0 +1,103 @@
+/****************************************************************************
+ * lib/string/lib_strtol.c
+ *
+ * Copyright (C) 2007, 2009, 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 <nuttx/config.h>
+
+#include <stdbool.h>
+#include <stdlib.h>
+
+#include "lib_internal.h"
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: strtol
+ *
+ * Description:
+ * The strtol() function converts the initial part of the string in
+ * nptr to a long integer value according to the given base, which must be
+ * between 2 and 36 inclusive, or be the special value 0.
+ *
+ * Warning: does not check for integer overflow!
+ *
+ ****************************************************************************/
+
+long strtol(const char *nptr, char **endptr, int base)
+{
+ unsigned long accum = 0;
+ bool negate = false;
+
+ if (nptr)
+ {
+ /* Skip leading spaces */
+
+ lib_skipspace(&nptr);
+
+ /* Check for leading + or - */
+
+ if (*nptr == '-')
+ {
+ negate = true;
+ nptr++;
+ }
+ else if (*nptr == '+')
+ {
+ nptr++;
+ }
+
+ /* Get the unsigned value */
+
+ accum = strtoul(nptr, endptr, base);
+
+ /* Correct the sign of the result */
+
+ if (negate)
+ {
+ return -(long)accum;
+ }
+ }
+ return (long)accum;
+}
+
diff --git a/nuttx/lib/string/lib_strtoll.c b/nuttx/lib/string/lib_strtoll.c
new file mode 100644
index 000000000..9c730b431
--- /dev/null
+++ b/nuttx/lib/string/lib_strtoll.c
@@ -0,0 +1,107 @@
+/****************************************************************************
+ * lib/string/lib_strtoll.c
+ *
+ * Copyright (C) 2009, 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 <nuttx/config.h>
+
+#include <stdbool.h>
+#include <stdlib.h>
+
+#include "lib_internal.h"
+
+#ifdef CONFIG_HAVE_LONG_LONG
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: strtoll
+ *
+ * Description:
+ * The strtol() function converts the initial part of the string in
+ * nptr to a long long integer value according to the given base, which
+ * must be between 2 and 36 inclusive, or be the special value 0.
+ *
+ * Warning: does not check for integer overflow!
+ *
+ ****************************************************************************/
+
+long long strtoll(const char *nptr, char **endptr, int base)
+{
+ unsigned long long accum = 0;
+ bool negate = false;
+
+ if (nptr)
+ {
+ /* Skip leading spaces */
+
+ lib_skipspace(&nptr);
+
+ /* Check for leading + or - */
+
+ if (*nptr == '-')
+ {
+ negate = true;
+ nptr++;
+ }
+ else if (*nptr == '+')
+ {
+ nptr++;
+ }
+
+ /* Get the unsigned value */
+
+ accum = strtoull(nptr, endptr, base);
+
+ /* Correct the sign of the result */
+
+ if (negate)
+ {
+ return -(long long)accum;
+ }
+ }
+ return (long long)accum;
+}
+
+#endif
+
diff --git a/nuttx/lib/string/lib_strtoul.c b/nuttx/lib/string/lib_strtoul.c
new file mode 100644
index 000000000..2aacc7cea
--- /dev/null
+++ b/nuttx/lib/string/lib_strtoul.c
@@ -0,0 +1,98 @@
+/****************************************************************************
+ * /lib/string/lib_strtoul.c
+ *
+ * Copyright (C) 2007, 2009, 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 <nuttx/config.h>
+
+#include <stdlib.h>
+
+#include "lib_internal.h"
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: strtoul
+ *
+ * Description:
+ * The strtol() function converts the initial part of the string in
+ * nptr to a long unsigned integer value according to the given base, which
+ * must be between 2 and 36 inclusive, or be the special value 0.
+ *
+ * Warning: does not check for integer overflow!
+ *
+ ****************************************************************************/
+
+unsigned long strtoul(const char *nptr, char **endptr, int base)
+{
+ unsigned long accum = 0;
+ int value;
+
+ if (nptr)
+ {
+ /* Skip leading spaces */
+
+ lib_skipspace(&nptr);
+
+ /* Check for unspecified base */
+
+ base = lib_checkbase(base, &nptr);
+
+ /* Accumulate each "digit" */
+
+ while (lib_isbasedigit(*nptr, base, &value))
+ {
+ accum = accum*base + value;
+ nptr++;
+ }
+
+ /* Return the final pointer to the unused value */
+
+ if (endptr)
+ {
+ *endptr = (char *)nptr;
+ }
+ }
+ return accum;
+}
+
diff --git a/nuttx/lib/string/lib_strtoull.c b/nuttx/lib/string/lib_strtoull.c
new file mode 100644
index 000000000..334162148
--- /dev/null
+++ b/nuttx/lib/string/lib_strtoull.c
@@ -0,0 +1,100 @@
+/****************************************************************************
+ * /lib/string/lib_strtoull.c
+ *
+ * Copyright (C) 2009, 2010 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 <nuttx/config.h>
+#include <nuttx/compiler.h>
+
+#include <stdlib.h>
+
+#include "lib_internal.h"
+
+#ifdef CONFIG_HAVE_LONG_LONG
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: strtoull
+ *
+ * Description:
+ * The strtol() function converts the initial part of the string in
+ * nptr to a long unsigned integer value according to the given base, which
+ * must be between 2 and 36 inclusive, or be the special value 0.
+ *
+ ****************************************************************************/
+
+unsigned long long strtoull(const char *nptr, char **endptr, int base)
+{
+ unsigned long long accum = 0;
+ int value;
+
+ if (nptr)
+ {
+ /* Skip leading spaces */
+
+ lib_skipspace(&nptr);
+
+ /* Check for unspecified base */
+
+ base = lib_checkbase(base, &nptr);
+
+ /* Accumulate each "digit" */
+
+ while (lib_isbasedigit(*nptr, base, &value))
+ {
+ accum = accum*base + value;
+ nptr++;
+ }
+
+ /* Return the final pointer to the unused value */
+
+ if (endptr)
+ {
+ *endptr = (char *)nptr;
+ }
+ }
+ return accum;
+}
+#endif
+