29391ef9ae
While it may very well be beneficial to have explict uiplib_ip4addrconv() and uiplib_ip6addrconv() available for IPv6 builds I'm having a hard time to see the point in uiplib_ip6addrconv() for IPv4 builds. Unrelated to the above the dispatching of uiplib_ipaddrconv() to either uiplib_ip4addrconv() or uiplib_ip6addrconv() can be accomplished by the C preprocessor only thus avoiding the size/speed overhead of an additional callframe.
143 lines
4.1 KiB
C
143 lines
4.1 KiB
C
/*
|
|
* Copyright (c) 2004, Adam Dunkels and the Swedish Institute of
|
|
* Computer Science.
|
|
* All rights reserved.
|
|
*
|
|
* 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. The name of the author may not be used to endorse or promote
|
|
* products derived from this software without specific prior
|
|
* written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
|
|
*
|
|
* This file is part of the uIP TCP/IP stack and the Contiki operating system.
|
|
*
|
|
*
|
|
*/
|
|
|
|
|
|
#include "net/uip.h"
|
|
#include "net/uiplib.h"
|
|
#include <string.h>
|
|
|
|
#define DEBUG DEBUG_NONE
|
|
#include "net/uip-debug.h"
|
|
|
|
/*-----------------------------------------------------------------------------------*/
|
|
#if UIP_CONF_IPV6
|
|
int
|
|
uiplib_ip6addrconv(const char *addrstr, uip_ip6addr_t *ipaddr)
|
|
{
|
|
uint16_t value;
|
|
int tmp, zero;
|
|
unsigned int len;
|
|
char c = 0; //gcc warning if not initialized
|
|
|
|
value = 0;
|
|
zero = -1;
|
|
if(*addrstr == '[') addrstr++;
|
|
|
|
for(len = 0; len < sizeof(uip_ip6addr_t) - 1; addrstr++) {
|
|
c = *addrstr;
|
|
if(c == ':' || c == '\0' || c == ']' || c == '/') {
|
|
ipaddr->u8[len] = (value >> 8) & 0xff;
|
|
ipaddr->u8[len + 1] = value & 0xff;
|
|
len += 2;
|
|
value = 0;
|
|
|
|
if(c == '\0' || c == ']' || c == '/') {
|
|
break;
|
|
}
|
|
|
|
if(*(addrstr + 1) == ':') {
|
|
/* Zero compression */
|
|
if(zero < 0) {
|
|
zero = len;
|
|
}
|
|
addrstr++;
|
|
}
|
|
} else {
|
|
if(c >= '0' && c <= '9') {
|
|
tmp = c - '0';
|
|
} else if(c >= 'a' && c <= 'f') {
|
|
tmp = c - 'a' + 10;
|
|
} else if(c >= 'A' && c <= 'F') {
|
|
tmp = c - 'A' + 10;
|
|
} else {
|
|
PRINTF("uiplib: illegal char: '%c'\n", c);
|
|
return 0;
|
|
}
|
|
value = (value << 4) + (tmp & 0xf);
|
|
}
|
|
}
|
|
if(c != '\0' && c != ']' && c != '/') {
|
|
PRINTF("uiplib: too large address\n");
|
|
return 0;
|
|
}
|
|
if(len < sizeof(uip_ip6addr_t)) {
|
|
if(zero < 0) {
|
|
PRINTF("uiplib: too short address\n");
|
|
return 0;
|
|
}
|
|
memmove(&ipaddr->u8[zero + sizeof(uip_ip6addr_t) - len],
|
|
&ipaddr->u8[zero], len - zero);
|
|
memset(&ipaddr->u8[zero], 0, sizeof(uip_ip6addr_t) - len);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
#endif /* UIP_CONF_IPV6 */
|
|
/*-----------------------------------------------------------------------------------*/
|
|
/* Parse a IPv4-address from a string. Returns the number of characters read
|
|
* for the address. */
|
|
int
|
|
uiplib_ip4addrconv(const char *addrstr, uip_ip4addr_t *ipaddr)
|
|
{
|
|
unsigned char tmp;
|
|
char c;
|
|
unsigned char i, j;
|
|
uint8_t charsread = 0;
|
|
|
|
tmp = 0;
|
|
|
|
for(i = 0; i < 4; ++i) {
|
|
j = 0;
|
|
do {
|
|
c = *addrstr;
|
|
++j;
|
|
if(j > 4) {
|
|
return 0;
|
|
}
|
|
if(c == '.' || c == 0 || c == ' ') {
|
|
ipaddr->u8[i] = tmp;
|
|
tmp = 0;
|
|
} else if(c >= '0' && c <= '9') {
|
|
tmp = (tmp * 10) + (c - '0');
|
|
} else {
|
|
return 0;
|
|
}
|
|
++addrstr;
|
|
++charsread;
|
|
} while(c != '.' && c != 0 && c != ' ');
|
|
|
|
}
|
|
return charsread-1;
|
|
}
|
|
/*-----------------------------------------------------------------------------------*/
|