mirror of
https://git.rtems.org/rtems-libbsd/
synced 2025-05-15 02:57:55 +08:00
1b13f6981a
This requires a full checkout of the FreeBSD 8.2 source code. The checkout we have been using is missing at least the libc, include, and sys directories. The script to copy files in is crude. This eventually needs to separate the manually written .h files out and add the RTEMS specific network initialization support with functionality to program the IP addresses and gateways as the old stack did.
123 lines
2.8 KiB
C
123 lines
2.8 KiB
C
/*
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* Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
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* 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 ISC DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static const char rcsid[] = "$Id: nsap_addr.c,v 1.3.18.2 2005/07/28 07:38:08 marka Exp $";
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#endif /* LIBC_SCCS and not lint */
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "port_before.h"
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <arpa/nameser.h>
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#include <ctype.h>
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#include <resolv.h>
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#include <resolv_mt.h>
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#include "port_after.h"
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static char
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xtob(int c) {
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return (c - (((c >= '0') && (c <= '9')) ? '0' : '7'));
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}
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u_int
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inet_nsap_addr(const char *ascii, u_char *binary, int maxlen) {
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u_char c, nib;
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u_int len = 0;
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if (ascii[0] != '0' || (ascii[1] != 'x' && ascii[1] != 'X'))
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return (0);
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ascii += 2;
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while ((c = *ascii++) != '\0' && len < (u_int)maxlen) {
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if (c == '.' || c == '+' || c == '/')
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continue;
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if (!isascii(c))
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return (0);
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if (islower(c))
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c = toupper(c);
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if (isxdigit(c)) {
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nib = xtob(c);
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c = *ascii++;
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if (c != '\0') {
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c = toupper(c);
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if (isxdigit(c)) {
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*binary++ = (nib << 4) | xtob(c);
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len++;
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} else
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return (0);
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}
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else
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return (0);
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}
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else
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return (0);
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}
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return (len);
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}
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char *
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inet_nsap_ntoa(int binlen, const u_char *binary, char *ascii) {
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int nib;
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int i;
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char *tmpbuf = inet_nsap_ntoa_tmpbuf;
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char *start;
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if (ascii)
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start = ascii;
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else {
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ascii = tmpbuf;
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start = tmpbuf;
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}
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*ascii++ = '0';
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*ascii++ = 'x';
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if (binlen > 255)
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binlen = 255;
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for (i = 0; i < binlen; i++) {
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nib = *binary >> 4;
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*ascii++ = nib + (nib < 10 ? '0' : '7');
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nib = *binary++ & 0x0f;
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*ascii++ = nib + (nib < 10 ? '0' : '7');
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if (((i % 2) == 0 && (i + 1) < binlen))
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*ascii++ = '.';
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}
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*ascii = '\0';
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return (start);
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}
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/*
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* Weak aliases for applications that use certain private entry points,
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* and fail to include <arpa/inet.h>.
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*/
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#undef inet_nsap_addr
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__weak_reference(__inet_nsap_addr, inet_nsap_addr);
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#undef inet_nsap_ntoa
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__weak_reference(__inet_nsap_ntoa, inet_nsap_ntoa);
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/*! \file */
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