diff options
Diffstat (limited to 'resolv/inet_addr.c')
| -rw-r--r-- | resolv/inet_addr.c | 79 |
1 files changed, 46 insertions, 33 deletions
diff --git a/resolv/inet_addr.c b/resolv/inet_addr.c index 48373b2..59e160e 100644 --- a/resolv/inet_addr.c +++ b/resolv/inet_addr.c @@ -1,9 +1,7 @@ /* - * ++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: @@ -15,7 +13,7 @@ * 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 @@ -27,16 +25,18 @@ * 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 @@ -45,20 +45,38 @@ * 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-- + */ + +/* + * Portions Copyright (c) 1996-1999 by Internet Software Consortium. + * + * 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. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS + * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE + * CONSORTIUM 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. */ #if defined(LIBC_SCCS) && !defined(lint) -static char sccsid[] = "@(#)inet_addr.c 8.1 (Berkeley) 6/17/93"; -static char rcsid[] = "$Id$"; +static const char sccsid[] = "@(#)inet_addr.c 8.1 (Berkeley) 6/17/93"; +static const char rcsid[] = "$BINDId: inet_addr.c,v 8.11 1999/10/13 16:39:25 vixie Exp $"; #endif /* LIBC_SCCS and not lint */ #include <sys/types.h> #include <sys/param.h> + #include <netinet/in.h> #include <arpa/inet.h> + #include <ctype.h> + #ifdef _LIBC # include <endian.h> # include <stdint.h> @@ -66,18 +84,13 @@ static char rcsid[] = "$Id$"; # include <limits.h> # include <errno.h> #endif -#include "../conf/portability.h" - -/* these are compatibility routines, not needed on recent BSD releases */ /* * Ascii internet address interpretation routine. * The value returned is in network order. */ in_addr_t -inet_addr(cp) - register const char *cp; -{ +inet_addr(const char *cp) { struct in_addr val; if (__inet_aton(cp, &val)) @@ -85,7 +98,7 @@ inet_addr(cp) return (INADDR_NONE); } -/* +/* * 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. @@ -93,21 +106,18 @@ inet_addr(cp) * cannot distinguish between failure and a local broadcast address. */ in_addr_t -__inet_aton(cp, addr) - const char *cp; - struct in_addr *addr; -{ +__inet_aton(const char *cp, struct in_addr *addr) { static const in_addr_t max[4] = { 0xffffffff, 0xffffff, 0xffff, 0xff }; - register in_addr_t val; + in_addr_t val; #ifndef _LIBC - register int base; + int base; #endif - register char c; + char c; union iaddr { uint8_t bytes[4]; uint32_t word; } res; - register uint8_t *pp = res.bytes; + uint8_t *pp = res.bytes; int digit; #ifdef _LIBC @@ -140,23 +150,28 @@ __inet_aton(cp, addr) } c = *cp; #else - base = 10; + val = 0; base = 10; digit = 0; if (c == '0') { c = *++cp; if (c == 'x' || c == 'X') base = 16, c = *++cp; - else + else { base = 8; + digit = 1 ; + } } - val = 0; for (;;) { if (isascii(c) && isdigit(c)) { + if (base == 8 && (c == '8' || c == '9')) + return (0); val = (val * base) + (c - '0'); c = *++cp; + digit = 1; } else if (base == 16 && isascii(c) && isxdigit(c)) { val = (val << 4) | (c + 10 - (islower(c) ? 'a' : 'A')); c = *++cp; + digit = 1; } else break; } @@ -168,8 +183,7 @@ __inet_aton(cp, addr) * a.b.c (with c treated as 16 bits) * a.b (with b treated as 24 bits) */ - if (pp > res.bytes + 3 - || val > 0xff) + if (pp > res.bytes + 3 || val > 0xff) goto ret_0; *pp++ = val; c = *++cp; @@ -181,7 +195,6 @@ __inet_aton(cp, addr) */ if (c != '\0' && (!isascii(c) || !isspace(c))) goto ret_0; - /* * Did we get a valid digit? */ @@ -193,7 +206,7 @@ __inet_aton(cp, addr) if (val > max[pp - res.bytes]) goto ret_0; - if (addr) + if (addr != NULL) addr->s_addr = res.word | htonl (val); #ifdef _LIBC |