mirror of
https://gitee.com/mirrors_PX4/PX4-Autopilot.git
synced 2026-07-01 01:00:35 +08:00
Merge branch 'master' into nuttx-merge-5447
This commit is contained in:
px4dev
@@ -0,0 +1,74 @@
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/************************************************************
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* libc/string/lib_memcmp.c
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*
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* Copyright (C) 2007, 2011-2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************/
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/************************************************************
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* Compilation Switches
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************************************************************/
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/************************************************************
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* Included Files
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************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <string.h>
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/************************************************************
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* Global Functions
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************************************************************/
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#ifndef CONFIG_ARCH_MEMCMP
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int memcmp(FAR const void *s1, FAR const void *s2, size_t n)
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{
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unsigned char *p1 = (unsigned char *)s1;
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unsigned char *p2 = (unsigned char *)s2;
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while (n-- > 0)
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{
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if (*p1 < *p2)
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{
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return -1;
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}
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else if (*p1 > *p2)
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{
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return 1;
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}
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p1++;
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p2++;
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}
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return 0;
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}
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#endif
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@@ -0,0 +1,77 @@
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/************************************************************
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* libc/string/lib_memmove.c
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*
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* Copyright (C) 2007, 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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||||
* 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
|
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
|
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* used to endorse or promote products derived from this software
|
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************/
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/************************************************************
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* Compilation Switches
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************************************************************/
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/************************************************************
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* Included Files
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************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <string.h>
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/************************************************************
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* Global Functions
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************************************************************/
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#ifndef CONFIG_ARCH_MEMMOVE
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FAR void *memmove(FAR void *dest, FAR const void *src, size_t count)
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{
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char *tmp, *s;
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if (dest <= src)
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{
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tmp = (char*) dest;
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s = (char*) src;
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while (count--)
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{
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*tmp++ = *s++;
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}
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}
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else
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{
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tmp = (char*) dest + count;
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s = (char*) src + count;
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while (count--)
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{
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*--tmp = *--s;
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}
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}
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return dest;
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}
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#endif
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@@ -0,0 +1,136 @@
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/****************************************************************************
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* libc/string/lib_strstr.c
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use str source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
|
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* are met:
|
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*
|
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* 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
|
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* the documentation and/or other materials provided with the
|
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
|
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* used to endorse or promote products derived from this software
|
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* without specific prior written permission.
|
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*
|
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <string.h>
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#include <ctype.h>
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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static FAR char *strcasechr(FAR const char *s, int uc)
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{
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register char ch;
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if (s)
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{
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for (; *s; s++)
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{
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ch = *s;
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if (toupper(ch) == uc)
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{
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return (FAR char*)s;
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}
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}
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}
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return NULL;
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}
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/****************************************************************************
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* Global Functions
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****************************************************************************/
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FAR char *strcasestr(FAR const char *str, FAR const char *substr)
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{
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const char *candidate; /* Candidate in str with matching start character */
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char ch; /* First character of the substring */
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int len; /* The length of the substring */
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/* Special case the empty substring */
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len = strlen(substr);
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ch = *substr;
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if (!ch)
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{
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/* We'll say that an empty substring matches at the beginning of
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* the string
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*/
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return (char*)str;
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}
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/* Search for the substring */
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candidate = str;
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ch = toupper(ch);
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for (;;)
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{
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/* strcasechr() will return a pointer to the next occurrence of the
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* character ch in the string (ignoring case)
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*/
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candidate = strcasechr(candidate, ch);
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if (!candidate || strlen(candidate) < len)
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{
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/* First character of the substring does not appear in the string
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* or the remainder of the string is not long enough to contain the
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* substring.
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*/
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return NULL;
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}
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/* Check if this is the beginning of a matching substring (ignoring case) */
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if (strncasecmp(candidate, substr, len) == 0)
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{
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/* Yes.. return the pointer to the first occurrence of the matching
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* substring.
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*/
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return (char*)candidate;
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}
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/* No, find the next candidate after this one */
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candidate++;
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}
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/* Won't get here, but some compilers might complain. Others might complain
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* about this code being unreachable too.
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*/
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return NULL;
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}
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@@ -0,0 +1,106 @@
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/****************************************************************************
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* libc/string/lib_strstr.c
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*
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* Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
|
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* Author: Gregory Nutt <gnutt@nuttx.org>
|
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*
|
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* 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.
|
||||
*
|
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****************************************************************************/
|
||||
|
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/****************************************************************************
|
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* Included Files
|
||||
****************************************************************************/
|
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|
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#include <nuttx/config.h>
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|
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#include <string.h>
|
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/****************************************************************************
|
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* Global Functions
|
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****************************************************************************/
|
||||
|
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char *strstr(const char *str, const char *substr)
|
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{
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const char *candidate; /* Candidate in str with matching start character */
|
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char ch; /* First character of the substring */
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int len; /* The length of the substring */
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/* Special case the empty substring */
|
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|
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len = strlen(substr);
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ch = *substr;
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|
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if (!ch)
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{
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/* We'll say that an empty substring matches at the beginning of
|
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* the string
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*/
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return (char*)str;
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}
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/* Search for the substring */
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candidate = str;
|
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for (;;)
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{
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/* strchr() will return a pointer to the next occurrence of the
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* character ch in the string
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*/
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candidate = strchr(candidate, ch);
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if (!candidate || strlen(candidate) < len)
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{
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/* First character of the substring does not appear in the string
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* or the remainder of the string is not long enough to contain the
|
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* substring.
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*/
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return NULL;
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}
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/* Check if this is the beginning of a matching substring */
|
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|
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if (strncmp(candidate, substr, len) == 0)
|
||||
{
|
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return (char*)candidate;
|
||||
}
|
||||
|
||||
/* No, find the next candidate after this one */
|
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|
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candidate++;
|
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}
|
||||
|
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/* Won't get here, but some compilers might complain. Other compilers
|
||||
* might complain about this code being unreachable too.
|
||||
*/
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
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