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#include <machine/rtems-bsd-user-space.h>
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. 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.
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static const char sccsid[] = "@(#)inet_network.c 8.1 (Berkeley) 6/4/93";
#endif /* LIBC_SCCS and not lint */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "port_before.h"
#include <rtems/bsd/sys/types.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <ctype.h>
#include "port_after.h"
/*%
* Internet network address interpretation routine.
* The library routines call this routine to interpret
* network numbers.
*/
in_addr_t
inet_network(cp)
const char *cp;
{
in_addr_t val, base, n;
char c;
in_addr_t parts[4], *pp = parts;
int i, digit;
again:
val = 0; base = 10; digit = 0;
if (*cp == '0')
digit = 1, base = 8, cp++;
if (*cp == 'x' || *cp == 'X')
base = 16, cp++;
while ((c = *cp) != 0) {
if (isdigit((unsigned char)c)) {
if (base == 8U && (c == '8' || c == '9'))
return (INADDR_NONE);
val = (val * base) + (c - '0');
cp++;
digit = 1;
continue;
}
if (base == 16U && isxdigit((unsigned char)c)) {
val = (val << 4) +
(c + 10 - (islower((unsigned char)c) ? 'a' : 'A'));
cp++;
digit = 1;
continue;
}
break;
}
if (!digit)
return (INADDR_NONE);
if (pp >= parts + 4 || val > 0xffU)
return (INADDR_NONE);
if (*cp == '.') {
*pp++ = val, cp++;
goto again;
}
if (*cp && !isspace(*cp&0xff))
return (INADDR_NONE);
*pp++ = val;
n = pp - parts;
if (n > 4U)
return (INADDR_NONE);
for (val = 0, i = 0; i < n; i++) {
val <<= 8;
val |= parts[i] & 0xff;
}
return (val);
}
/*
* Weak aliases for applications that use certain private entry points,
* and fail to include <arpa/inet.h>.
*/
#undef inet_network
__weak_reference(__inet_network, inet_network);
/*! \file */
|
