1999-10-11 07:38:21 +00:00
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/*
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* Copyright (c) 1983, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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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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* 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 the
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* documentation and/or other materials provided with the distribution.
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Remove "advertising clause" from BSD license per:
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
July 22, 1999
To All Licensees, Distributors of Any Version of BSD:
As you know, certain of the Berkeley Software Distribution ("BSD") source
code files require that further distributions of products containing all or
portions of the software, acknowledge within their advertising materials
that such products contain software developed by UC Berkeley and its
contributors.
Specifically, the provision reads:
" * 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors."
Effective immediately, licensees and distributors are no longer required to
include the acknowledgement within advertising materials. Accordingly, the
foregoing paragraph of those BSD Unix files containing it is hereby deleted
in its entirety.
William Hoskins
Director, Office of Technology Licensing
University of California, Berkeley
svn path=/trunk/; revision=20412
2007-01-13 03:16:07 +00:00
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* 3. Neither the name of the University nor the names of its contributors
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1999-10-11 07:38:21 +00:00
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* may be 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 REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR 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, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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2000-01-10 17:33:17 +00:00
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#include "config.h"
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1999-10-11 07:38:21 +00:00
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)inet_addr.c 8.1 (Berkeley) 6/17/93";
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#endif /* LIBC_SCCS and not lint */
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2000-01-10 17:33:17 +00:00
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#ifdef HAVE_SYS_PARAM_H
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1999-10-11 07:38:21 +00:00
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#include <sys/param.h>
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2000-01-10 17:33:17 +00:00
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#endif
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2002-08-04 00:45:59 +00:00
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#ifdef HAVE_NETINET_IN_H
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#include <netinet/in.h>
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#endif
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#ifdef HAVE_WINSOCK2_H
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#include <winsock2.h>
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#endif
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2000-01-10 17:33:17 +00:00
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#ifdef HAVE_ARPA_INET_H
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1999-10-11 07:38:21 +00:00
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#include <arpa/inet.h>
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2000-01-10 17:33:17 +00:00
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#endif
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Apparently, on systems with glibc 2.2, "inet_aton()" is declared in
<arpa/inet.h>, but is, in some fashion, declared differently from the
way we declare it in "inet_v6defs.h", but "inet_ntop()" isn't defined,
so we include "inet_v6defs.h" in "inet_pton.c", which causes
"inet_pton.c" not to compile as we get a collision between the two
declarations.
Move the declaration of "inet_aton()" to "inet_aton.h", define
"NEED_INET_ATON_H" iff we didn't find "inet_aton()" in the system
libraries, and include "inet_aton.h" in the callers of "inet_aton()" iff
"NEED_INET_ATON_H" is defined, so that it doesn't get declared by us if
"inet_aton()" is defined by a system library (which hopefully means it's
declared in <arpa/inet.h> instead).
svn path=/trunk/; revision=2137
2000-07-14 07:11:53 +00:00
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#include "inet_aton.h"
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2002-08-28 20:41:00 +00:00
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/*
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1999-10-11 07:38:21 +00:00
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* Check whether "cp" is a valid ascii representation
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* of an Internet address and convert to a binary address.
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* Returns 1 if the address is valid, 0 if not.
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* This replaces inet_addr, the return value from which
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* cannot distinguish between failure and a local broadcast address.
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*/
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int
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inet_aton(cp_arg, addr)
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const char *cp_arg;
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struct in_addr *addr;
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{
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2002-08-04 00:45:59 +00:00
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register const u_char *cp = cp_arg;
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register u_long val;
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2009-04-08 18:19:10 +00:00
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register int base;
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register size_t n;
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2002-08-04 00:45:59 +00:00
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register u_char c;
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u_int parts[4];
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register u_int *pp = parts;
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1999-10-11 07:38:21 +00:00
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for (;;) {
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/*
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* Collect number up to ``.''.
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* Values are specified as for C:
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* 0x=hex, 0=octal, other=decimal.
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*/
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val = 0; base = 10;
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if (*cp == '0') {
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if (*++cp == 'x' || *cp == 'X')
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base = 16, cp++;
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else
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base = 8;
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}
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while ((c = *cp) != '\0') {
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if (isascii(c) && isdigit(c)) {
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val = (val * base) + (c - '0');
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cp++;
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continue;
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}
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if (base == 16 && isascii(c) && isxdigit(c)) {
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2002-08-28 20:41:00 +00:00
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val = (val << 4) +
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1999-10-11 07:38:21 +00:00
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(c + 10 - (islower(c) ? 'a' : 'A'));
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cp++;
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continue;
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}
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break;
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}
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if (*cp == '.') {
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/*
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* Internet format:
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* a.b.c.d
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* a.b.c (with c treated as 16-bits)
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* a.b (with b treated as 24 bits)
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*/
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if (pp >= parts + 3 || val > 0xff)
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return (0);
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*pp++ = val, cp++;
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} else
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break;
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}
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/*
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* Check for trailing characters.
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*/
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if (*cp && (!isascii(*cp) || !isspace(*cp)))
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return (0);
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/*
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* Concoct the address according to
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* the number of parts specified.
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*/
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n = pp - parts + 1;
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switch (n) {
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case 1: /* a -- 32 bits */
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break;
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case 2: /* a.b -- 8.24 bits */
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if (val > 0xffffff)
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return (0);
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val |= parts[0] << 24;
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break;
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case 3: /* a.b.c -- 8.8.16 bits */
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if (val > 0xffff)
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return (0);
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val |= (parts[0] << 24) | (parts[1] << 16);
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break;
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case 4: /* a.b.c.d -- 8.8.8.8 bits */
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if (val > 0xff)
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return (0);
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val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
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break;
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}
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if (addr)
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2002-08-04 00:45:59 +00:00
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addr->s_addr = htonl(val);
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1999-10-11 07:38:21 +00:00
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return (1);
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}
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2014-10-14 15:12:16 +00:00
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 8
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* tab-width: 8
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* indent-tabs-mode: t
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* End:
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*
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* vi: set shiftwidth=8 tabstop=8 noexpandtab:
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* :indentSize=8:tabSize=8:noTabs=false:
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*/
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