/* * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") * 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 ISC DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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 const char rcsid[] = "$Id: nsap_addr.c,v 1.2.206.1 2004/03/09 08:33:33 marka Exp $";#endif /* LIBC_SCCS and not lint */#include "port_before.h"#include <sys/types.h>#include <sys/param.h>#include <sys/socket.h>#include <netinet/in.h>#include <arpa/inet.h>#include <arpa/nameser.h>#include <ctype.h>#include <resolv.h>#include "port_after.h"static charxtob(int c) {	return (c - (((c >= '0') && (c <= '9')) ? '0' : '7'));}u_intinet_nsap_addr(const char *ascii, u_char *binary, int maxlen) {	u_char c, nib;	u_int len = 0;	if (ascii[0] != '0' || (ascii[1] != 'x' && ascii[1] != 'X'))		return (0);	ascii += 2;	while ((c = *ascii++) != '\0' && len < (u_int)maxlen) {		if (c == '.' || c == '+' || c == '/')			continue;		if (!isascii(c))			return (0);		if (islower(c))			c = toupper(c);		if (isxdigit(c)) {			nib = xtob(c);			c = *ascii++;			if (c != '\0') {				c = toupper(c);				if (isxdigit(c)) {					*binary++ = (nib << 4) | xtob(c);					len++;				} else					return (0);			}			else				return (0);		}		else			return (0);	}	return (len);}char *inet_nsap_ntoa(int binlen, const u_char *binary, char *ascii) {	int nib;	int i;	static char tmpbuf[2+255*3];	char *start;	if (ascii)		start = ascii;	else {		ascii = tmpbuf;		start = tmpbuf;	}	*ascii++ = '0';	*ascii++ = 'x';	if (binlen > 255)		binlen = 255;	for (i = 0; i < binlen; i++) {		nib = *binary >> 4;		*ascii++ = nib + (nib < 10 ? '0' : '7');		nib = *binary++ & 0x0f;		*ascii++ = nib + (nib < 10 ? '0' : '7');		if (((i % 2) == 0 && (i + 1) < binlen))			*ascii++ = '.';	}	*ascii = '\0';	return (start);}