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136 lines
3.3 KiB
C
136 lines
3.3 KiB
C
/**HEADER********************************************************************
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*
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* Copyright (c) 2008 Freescale Semiconductor;
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* All Rights Reserved
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*
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* Copyright (c) 2004-2008 Embedded Access Inc.;
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* All Rights Reserved
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*
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* Copyright (c) 1989-2008 ARC International;
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* All Rights Reserved
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*
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***************************************************************************
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*
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* THIS SOFTWARE IS PROVIDED BY FREESCALE "AS IS" AND ANY EXPRESSED OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL FREESCALE OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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**************************************************************************
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*
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* $FileName: inet.c$
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* $Version : 3.0.3.0$
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* $Date : Nov-21-2008$
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*
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* Comments:
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*
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* This file contains some Internet address manipulation
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* functions.
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*
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*END************************************************************************/
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#include <ctype.h>
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#include <rtcs.h>
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/*FUNCTION*-------------------------------------------------------------
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*
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* Function Name : inet_aton
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* Returned Value : -1 on success, 0 on error
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* Comments : Converts a dotted-decimal into a binary in_addr
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*
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*END*-----------------------------------------------------------------*/
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int_32 inet_aton
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(
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const char _PTR_ name,
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/* [IN] dotted decimal IP address */
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in_addr _PTR_ ipaddr_ptr
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/* [OUT] binary IP address */
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)
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{ /* Body */
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boolean ipok = FALSE;
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uint_32 dots;
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uint_32 byte;
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_ip_address addr;
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addr = 0;
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dots = 0;
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for (;;) {
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if (!isdigit(*name)) break;
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byte = 0;
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while (isdigit(*name)) {
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byte *= 10;
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byte += *name - '0';
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if (byte > 255) break;
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name++;
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} /* Endwhile */
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if (byte > 255) break;
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addr <<= 8;
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addr += byte;
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if (*name == '.') {
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dots++;
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if (dots > 3) break;
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name++;
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continue;
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} /* Endif */
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if ((*name == '\0') && (dots == 3)) {
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ipok = TRUE;
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} /* Endif */
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break;
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} /* Endfor */
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if (!ipok) {
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return 0;
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} /* Endif */
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if (ipaddr_ptr) {
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ipaddr_ptr->s_addr = addr;
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} /* Endif */
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return -1;
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} /* Endbody */
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/*FUNCTION*-------------------------------------------------------------
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*
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* Function Name : inet_addr
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* Returned Value : a binary IP address, or -1 on error
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* Comments : Converts a dotted-decimal into a binary in_addr
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*
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*END*-----------------------------------------------------------------*/
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_ip_address inet_addr
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(
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const char _PTR_ name
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/* [IN] dotted decimal IP address */
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)
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{ /* Body */
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in_addr ipaddr;
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int_32 ipok;
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ipok = inet_aton(name, &ipaddr);
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if (!ipok) {
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return INADDR_BROADCAST;
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} /* Endif */
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return ipaddr.s_addr;
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} /* Endbody */
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/* EOF */
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