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c5598d4721
* sysdeps/unix/make-syscalls.sh: Generate libc_hidden_def or libc_hidden_weak for every system call symbol defined. * include/time.h: Use libc_hidden_proto for time, asctime, mktime, timelocal, localtime, strftime. * time/asctime.c: Add libc_hidden_def. * time/mktime.c: Likewise. * time/localtime.c: Likewise. * time/strftime.c: Likewise. * time/strptime.c: Likewise. * sysdeps/generic/time.c: Likewise. * sysdeps/unix/time.c: Likewise. * sysdeps/unix/sysv/i386/time.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/time.S: Likewise. * include/arpa/inet.h: Use libc_hidden_proto for inet_ntop, inet_pton. inet_makeaddr, inet_netof, inet_addr, __inet_addr. * resolv/inet_ntop.c: Likewise. * resolv/inet_pton.c: Likewise. * inet/inet_mkadr.c: Add libc_hidden_def. * inet/inet_netof.c: Likewise. * resolv/inet_addr.c: Likewise. * include/libc-symbols.h: Remove `defined HAVE_BROKEN_ALIAS_ATTRIBUTE' clauses from conditionals for now. Will have to be fixed later for older compilers.
227 lines
6.5 KiB
C
227 lines
6.5 KiB
C
/*
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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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* 4. Neither the name of the University nor the names of its contributors
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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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/*
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* Portions Copyright (c) 1993 by Digital Equipment Corporation.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies, and that
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* the name of Digital Equipment Corporation not be used in advertising or
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* publicity pertaining to distribution of the document or software without
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* specific, written prior permission.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
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* WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
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* CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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/*
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* Portions Copyright (c) 1996-1999 by Internet Software Consortium.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
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* ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
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* CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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* DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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* PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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* ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static const char sccsid[] = "@(#)inet_addr.c 8.1 (Berkeley) 6/17/93";
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static const char rcsid[] = "$BINDId: inet_addr.c,v 8.11 1999/10/13 16:39:25 vixie Exp $";
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#endif /* LIBC_SCCS and not lint */
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#include <sys/types.h>
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#include <sys/param.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <ctype.h>
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#ifdef _LIBC
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# include <endian.h>
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# include <stdint.h>
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# include <stdlib.h>
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# include <limits.h>
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# include <errno.h>
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#endif
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/*
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* Ascii internet address interpretation routine.
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* The value returned is in network order.
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*/
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in_addr_t
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inet_addr(const char *cp) {
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struct in_addr val;
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if (__inet_aton(cp, &val))
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return (val.s_addr);
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return (INADDR_NONE);
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}
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/*
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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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in_addr_t
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__inet_aton(const char *cp, struct in_addr *addr)
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{
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static const in_addr_t max[4] = { 0xffffffff, 0xffffff, 0xffff, 0xff };
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in_addr_t val;
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#ifndef _LIBC
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int base;
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#endif
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char c;
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union iaddr {
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uint8_t bytes[4];
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uint32_t word;
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} res;
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uint8_t *pp = res.bytes;
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int digit;
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#ifdef _LIBC
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int saved_errno = errno;
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__set_errno (0);
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#endif
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res.word = 0;
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c = *cp;
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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, isdigit=decimal.
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*/
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if (!isdigit(c))
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goto ret_0;
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#ifdef _LIBC
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{
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char *endp;
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unsigned long ul = strtoul (cp, (char **) &endp, 0);
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if (ul == ULONG_MAX && errno == ERANGE)
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goto ret_0;
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if (ul > 0xfffffffful)
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goto ret_0;
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val = ul;
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digit = cp != endp;
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cp = endp;
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}
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c = *cp;
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#else
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val = 0; base = 10; digit = 0;
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if (c == '0') {
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c = *++cp;
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if (c == 'x' || c == 'X')
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base = 16, c = *++cp;
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else {
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base = 8;
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digit = 1 ;
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}
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}
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for (;;) {
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if (isascii(c) && isdigit(c)) {
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if (base == 8 && (c == '8' || c == '9'))
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return (0);
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val = (val * base) + (c - '0');
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c = *++cp;
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digit = 1;
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} else if (base == 16 && isascii(c) && isxdigit(c)) {
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val = (val << 4) |
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(c + 10 - (islower(c) ? 'a' : 'A'));
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c = *++cp;
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digit = 1;
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} else
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break;
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}
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#endif
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if (c == '.') {
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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 > res.bytes + 2 || val > 0xff)
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goto ret_0;
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*pp++ = val;
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c = *++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 (c != '\0' && (!isascii(c) || !isspace(c)))
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goto ret_0;
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/*
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* Did we get a valid digit?
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*/
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if (!digit)
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goto ret_0;
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/* Check whether the last part is in its limits depending on
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the number of parts in total. */
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if (val > max[pp - res.bytes])
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goto ret_0;
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if (addr != NULL)
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addr->s_addr = res.word | htonl (val);
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#ifdef _LIBC
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__set_errno (saved_errno);
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#endif
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return (1);
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ret_0:
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#ifdef _LIBC
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__set_errno (saved_errno);
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#endif
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return (0);
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}
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weak_alias (__inet_aton, inet_aton)
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libc_hidden_def (__inet_aton)
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libc_hidden_weak (inet_aton)
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