Move the header of set/sethostname from libc/unisted to net/netdb. This is OS internal stuff
This commit is contained in:
Gregory Nutt
parent
c19fd13291
commit
6380832ab7
127
include/nuttx/net/netdb.h
Normal file
127
include/nuttx/net/netdb.h
Normal file
@ -0,0 +1,127 @@
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/****************************************************************************
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* include/nuttx/net/netdb.h
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*
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* Copyright (C) 2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Includes some definitions that a compatible with the LGPL GNU C Library
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* header file of the same name.
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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:
|
||||
*
|
||||
* 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
|
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* distribution.
|
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* 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,
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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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#ifndef __INCLUDE_NUTTX_NET_NETDB_H
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#define __INCLUDE_NUTTX_NET_NETDB_H
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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 <nuttx/net/netconfig.h>
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/****************************************************************************
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* Public Type Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: netdb_gethostname
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*
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* Description:
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* The netdb_gethostname() function will return the standard host name for
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* the current machine. The namelen argument will specify the size of the
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* array pointed to by the name argument. The returned name will be null-
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* terminated, except that if namelen is an insufficient length to hold the
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* host name, then the returned name will be truncated and it is
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* unspecified whether the returned name is null-terminated.
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*
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* Host names are limited to {HOST_NAME_MAX} bytes.
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*
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* Input Parameters:
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* name - The user-provided buffer to receive the host name.
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* namelen - The size of the user provided buffer in bytes.
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*
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* Returned Value:
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* Upon successful completion, 0 will be returned; otherwise, -1 will be
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* returned. No errors are defined; errno variable is not set.
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*
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****************************************************************************/
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int netdb_gethostname(FAR char *name, size_t namelen);
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/****************************************************************************
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* Name: netdb_sethostname
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*
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* Description:
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*
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* netdb_sethostname() sets the hostname to the value given in the
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* character array name. The len argument specifies the number of bytes in
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* name. (Thus, name does not require a terminating null byte.)
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*
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* Input Parameters:
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* name - The user buffer to providing the new host name.
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* namelen - The size of the user buffer in bytes.
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*
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* Returned Value:
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* Upon successful completion, 0 will be returned; otherwise, -1 will be
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* returned. No errors are defined; errno variable is not set.
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*
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****************************************************************************/
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int netdb_sethostname(FAR const char *name, size_t size);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCLUDE_NUTTX_NET_NETDB_H */
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98
libc/unistd/lib_sethostname.c
Normal file
98
libc/unistd/lib_sethostname.c
Normal file
@ -0,0 +1,98 @@
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/****************************************************************************
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* libc/unistd/lib_gethostname.c
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*
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* Copyright (C) 2015 Stavros Polymenis. All rights reserved.
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* Author: Stavros Polymenis <sp@orbitalfox.com>
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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.
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||||
* 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
|
||||
* 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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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <unistd.h>
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#include <nuttx/net/netdb.h>
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/* This file is only compiled if network support is enabled */
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#ifdef CONFIG_NET
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/* Further, in the protected and kernel build modes where kernel and
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* application code are separated, the hostname is a common system property
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* and must reside only in the kernel. In that case, this accessor
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* function only be called from user space is only via a kernel system call.
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*/
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#if (!defined(CONFIG_BUILD_PROTECTED) && !defined(CONFIG_BUILD_KERNEL)) || \
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defined(__KERNEL__)
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: sethostname
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*
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* Description:
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*
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* sethostname() sets the hostname to the value given in the character
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* array name. The len argument specifies the number of bytes in name.
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* (Thus, name does not require a terminating null byte.)
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*
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* Conforming To
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* SVr4, 4.4BSD (these interfaces first appeared in 4.2BSD). POSIX.1-2001
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* specifies gethostname() but not sethostname().
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*
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* Input Parameters:
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* name - The user buffer to providing the new host name.
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* namelen - The size of the user buffer in bytes.
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*
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* Returned Value:
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* Upon successful completion, 0 will be returned; otherwise, -1 will be
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* returned. No errors are defined; errno variable is not set.
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*
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****************************************************************************/
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int sethostname(FAR const char *name, size_t size)
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{
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/* This is just a thin layer over netdb_sethostname() */
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return netdb_sethostname(name, size);
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}
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#endif /* CONFIG_NET */
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#endif /* (!CONFIG_BUILD_PROTECTED && !CONFIG_BUILD_KERNEL) || __KERNEL__ */
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@ -68,6 +68,7 @@ include local/Make.defs
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include tcp/Make.defs
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include udp/Make.defs
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include devif/Make.defs
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include netdb/Make.defs
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include route/Make.defs
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include utils/Make.defs
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endif
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@ -21,6 +21,7 @@ Directory Structure
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+- route - Routing table support
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+- tcp - Transmission Control Protocol
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+- udp - User Datagram Protocol
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+- netdb - Host name support
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`- utils - Miscellaneous utility functions
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43
net/netdb/Make.defs
Normal file
43
net/netdb/Make.defs
Normal file
@ -0,0 +1,43 @@
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############################################################################
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# net/netdb/Make.defs
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#
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# Copyright (C) 2015 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
|
||||
# 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
|
||||
# used to endorse or promote products derived from this software
|
||||
# without specific prior written permission.
|
||||
#
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# 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
|
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# 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
|
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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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# Network database interface source files
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NET_CSRCS += netdb_gethostname.c netdb_sethostname.c netdb_globals.c
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# Include database device interface build support
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DEPPATH += --dep-path netdb
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VPATH += :netdb
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76
net/netdb/netdb.h
Normal file
76
net/netdb/netdb.h
Normal file
@ -0,0 +1,76 @@
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/****************************************************************************
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* net/netdb/netdb.h
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*
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* Copyright (C) 2015 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
|
||||
* 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
|
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef _NET_NETDB_NETDB_H
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#define _NET_NETDB_NETDB_H
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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 <unistd.h>
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/****************************************************************************
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* Pre-processor Definitions
|
||||
****************************************************************************/
|
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|
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/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
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#ifdef __cplusplus
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#define EXTERN extern "C"
|
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/* This is the system hostname */
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EXTERN char g_hostname[HOST_NAME_MAX + 1];
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* _NET_NETDB_NETDB_H */
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98
net/netdb/netdb_gethostname.c
Normal file
98
net/netdb/netdb_gethostname.c
Normal file
@ -0,0 +1,98 @@
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/****************************************************************************
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* net/netdb/netdb_gethostname.c
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*
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* Copyright (C) 2015 Stavros Polymenis. All rights reserved.
|
||||
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
|
||||
* Author: Stavros Polymenis <sp@orbitalfox.com>
|
||||
* Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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>
|
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#include <string.h>
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#include <unistd.h>
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#include <unistd.h>
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#include <nuttx/net/netdb.h>
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#include <arch/irq.h>
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#include "netdb/netdb.h"
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|
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/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: netdb_gethostname
|
||||
*
|
||||
* Description:
|
||||
* The netdb_gethostname() function will return the standard host name for
|
||||
* the current machine. The namelen argument will specify the size of the
|
||||
* array pointed to by the name argument. The returned name will be null-
|
||||
* terminated, except that if namelen is an insufficient length to hold the
|
||||
* host name, then the returned name will be truncated and it is
|
||||
* unspecified whether the returned name is null-terminated.
|
||||
*
|
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* Host names are limited to {HOST_NAME_MAX} bytes.
|
||||
*
|
||||
* Input Parameters:
|
||||
* name - The user-provided buffer to receive the host name.
|
||||
* namelen - The size of the user provided buffer in bytes.
|
||||
*
|
||||
* Returned Value:
|
||||
* Upon successful completion, 0 will be returned; otherwise, -1 will be
|
||||
* returned. No errors are defined; errno variable is not set.
|
||||
*
|
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****************************************************************************/
|
||||
|
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int netdb_gethostname(FAR char *name, size_t namelen)
|
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{
|
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irqstate_t flags;
|
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|
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/* Return the host name, truncating to fit into the user provided buffer.
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* The hostname is global resource. There is a microscopic possibility
|
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* that it could change while we are copying it.
|
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*/
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flags = irqsave();
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strncpy(name, g_hostname, namelen);
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irqrestore(flags);
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return 0;
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}
|
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68
net/netdb/netdb_globals.c
Normal file
68
net/netdb/netdb_globals.c
Normal file
@ -0,0 +1,68 @@
|
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/****************************************************************************
|
||||
* net/netdb/netdb_globals.c
|
||||
*
|
||||
* Copyright (C) 2015 Stavros Polymenis. All rights reserved.
|
||||
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
|
||||
* Author: Stavros Polymenis <sp@orbitalfox.com>
|
||||
* Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 "netdb/netdb.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/* The default host name is a system configuration setting. This may be
|
||||
* changed via sethostname(), however.
|
||||
*/
|
||||
|
||||
#ifndef CONFIG_NET_HOSTNAME
|
||||
# define CONFIG_NET_HOSTNAME ""
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
/* This is the system hostname */
|
||||
|
||||
char g_hostname[HOST_NAME_MAX + 1] = CONFIG_NET_HOSTNAME;
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
103
net/netdb/netdb_sethostname.c
Normal file
103
net/netdb/netdb_sethostname.c
Normal file
@ -0,0 +1,103 @@
|
||||
/****************************************************************************
|
||||
* net/netdb/netdb_sethostname.c
|
||||
*
|
||||
* Copyright (C) 2015 Stavros Polymenis. All rights reserved.
|
||||
* Copyright (C) 2015 Gregory Nutt. All rights reserved.
|
||||
* Author: Stavros Polymenis <sp@orbitalfox.com>
|
||||
* Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* 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 <unistd.h>
|
||||
|
||||
#include <nuttx/net/netdb.h>
|
||||
#include <arch/irq.h>
|
||||
|
||||
#include "netdb/netdb.h"
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef MIN
|
||||
# define MIN(a,b) ((a) < (b) ? (a) : (b))
|
||||
#endif
|
||||
|
||||
#ifndef MAX
|
||||
# define MAX(a,b) ((a) > (b) ? (a) : (b))
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: netdb_sethostname
|
||||
*
|
||||
* Description:
|
||||
*
|
||||
* netdb_sethostname() sets the hostname to the value given in the
|
||||
* character array name. The len argument specifies the number of bytes in
|
||||
* name. (Thus, name does not require a terminating null byte.)
|
||||
*
|
||||
* Input Parameters:
|
||||
* name - The user buffer to providing the new host name.
|
||||
* namelen - The size of the user buffer in bytes.
|
||||
*
|
||||
* Returned Value:
|
||||
* Upon successful completion, 0 will be returned; otherwise, -1 will be
|
||||
* returned. No errors are defined; errno variable is not set.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int netdb_sethostname(FAR const char *name, size_t size)
|
||||
{
|
||||
irqstate_t flags;
|
||||
|
||||
/* Save the new host name, truncating to HOST_NAME_MAX if necessary. This
|
||||
* internal copy is always NUL terminated. The hostname is global resource.
|
||||
* There is a microscopic possibility that it could be accessed while we
|
||||
* are setting it.
|
||||
*/
|
||||
|
||||
flags = irqsave();
|
||||
strncpy(g_hostname, name, MIN(HOST_NAME_MAX, size));
|
||||
g_hostname[HOST_NAME_MAX] = '\0';
|
||||
irqrestore(flags);
|
||||
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user