+++ /dev/null
-/* $OpenBSD: inet_addr.c,v 1.6 1999/05/03 22:31:14 yanick Exp $ */
-
-/*
- * ++Copyright++ 1983, 1990, 1993
- * -
- * Copyright (c) 1983, 1990, 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.
- * 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.
- * 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.
- * -
- * Portions Copyright (c) 1993 by Digital Equipment Corporation.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies, and that
- * the name of Digital Equipment Corporation not be used in advertising or
- * publicity pertaining to distribution of the document or software without
- * specific, written prior permission.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
- * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
- * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
- * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
- * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
- * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- * SOFTWARE.
- * -
- * --Copyright--
- */
-
-#include "config.h"
-
-#if !defined(HAVE_INET_ATON)
-
-#if defined(LIBC_SCCS) && !defined(lint)
-#if 0
-static char sccsid[] = "@(#)inet_addr.c 8.1 (Berkeley) 6/17/93";
-static char rcsid[] = "$From: inet_addr.c,v 8.5 1996/08/05 08:31:35 vixie Exp $";
-#else
-static char rcsid[] = "$OpenBSD: inet_addr.c,v 1.6 1999/05/03 22:31:14 yanick Exp $";
-#endif
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include <ctype.h>
-
-#if 0
-/*
- * Ascii internet address interpretation routine.
- * The value returned is in network order.
- */
-in_addr_t
-inet_addr(cp)
- register const char *cp;
-{
- struct in_addr val;
-
- if (inet_aton(cp, &val))
- return (val.s_addr);
- return (INADDR_NONE);
-}
-#endif
-
-/*
- * Check whether "cp" is a valid ascii representation
- * of an Internet address and convert to a binary address.
- * Returns 1 if the address is valid, 0 if not.
- * This replaces inet_addr, the return value from which
- * cannot distinguish between failure and a local broadcast address.
- */
-int
-inet_aton(const char *cp, struct in_addr *addr)
-{
- register u_int32_t val;
- register int base, n;
- register char c;
- unsigned int parts[4];
- register unsigned int *pp = parts;
-
- c = *cp;
- for (;;) {
- /*
- * Collect number up to ``.''.
- * Values are specified as for C:
- * 0x=hex, 0=octal, isdigit=decimal.
- */
- if (!isdigit(c))
- return (0);
- val = 0; base = 10;
- if (c == '0') {
- c = *++cp;
- if (c == 'x' || c == 'X')
- base = 16, c = *++cp;
- else
- base = 8;
- }
- for (;;) {
- if (isascii(c) && isdigit(c)) {
- val = (val * base) + (c - '0');
- c = *++cp;
- } else if (base == 16 && isascii(c) && isxdigit(c)) {
- val = (val << 4) |
- (c + 10 - (islower(c) ? 'a' : 'A'));
- c = *++cp;
- } else
- break;
- }
- if (c == '.') {
- /*
- * Internet format:
- * a.b.c.d
- * a.b.c (with c treated as 16 bits)
- * a.b (with b treated as 24 bits)
- */
- if (pp >= parts + 3)
- return (0);
- *pp++ = val;
- c = *++cp;
- } else
- break;
- }
- /*
- * Check for trailing characters.
- */
- if (c != '\0' && (!isascii(c) || !isspace(c)))
- return (0);
- /*
- * Concoct the address according to
- * the number of parts specified.
- */
- n = pp - parts + 1;
- switch (n) {
-
- case 0:
- return (0); /* initial nondigit */
-
- case 1: /* a -- 32 bits */
- break;
-
- case 2: /* a.b -- 8.24 bits */
- if ((val > 0xffffff) || (parts[0] > 0xff))
- return (0);
- val |= parts[0] << 24;
- break;
-
- case 3: /* a.b.c -- 8.8.16 bits */
- if ((val > 0xffff) || (parts[0] > 0xff) || (parts[1] > 0xff))
- return (0);
- val |= (parts[0] << 24) | (parts[1] << 16);
- break;
-
- case 4: /* a.b.c.d -- 8.8.8.8 bits */
- if ((val > 0xff) || (parts[0] > 0xff) || (parts[1] > 0xff) || (parts[2] > 0xff))
- return (0);
- val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8);
- break;
- }
- if (addr)
- addr->s_addr = htonl(val);
- return (1);
-}
-
-#endif /* !defined(HAVE_INET_ATON) */
andersk / openssh.git / commitdiff
