165e96449SHajimu UMEMOTO /* 265e96449SHajimu UMEMOTO * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") 365e96449SHajimu UMEMOTO * Copyright (c) 1996-1999 by Internet Software Consortium. 465e96449SHajimu UMEMOTO * 565e96449SHajimu UMEMOTO * Permission to use, copy, modify, and distribute this software for any 665e96449SHajimu UMEMOTO * purpose with or without fee is hereby granted, provided that the above 765e96449SHajimu UMEMOTO * copyright notice and this permission notice appear in all copies. 865e96449SHajimu UMEMOTO * 965e96449SHajimu UMEMOTO * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES 1065e96449SHajimu UMEMOTO * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 1165e96449SHajimu UMEMOTO * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR 1265e96449SHajimu UMEMOTO * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 1365e96449SHajimu UMEMOTO * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 1465e96449SHajimu UMEMOTO * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 1565e96449SHajimu UMEMOTO * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 1665e96449SHajimu UMEMOTO */ 1765e96449SHajimu UMEMOTO 1865e96449SHajimu UMEMOTO #if defined(LIBC_SCCS) && !defined(lint) 1965e96449SHajimu UMEMOTO static const char rcsid[] = "$Id: nsap_addr.c,v 1.2.206.2 2005/07/28 07:43:18 marka Exp $"; 2065e96449SHajimu UMEMOTO #endif /* LIBC_SCCS and not lint */ 2165e96449SHajimu UMEMOTO 2265e96449SHajimu UMEMOTO #include "port_before.h" 2365e96449SHajimu UMEMOTO 2465e96449SHajimu UMEMOTO #include <sys/types.h> 2565e96449SHajimu UMEMOTO #include <sys/param.h> 2665e96449SHajimu UMEMOTO #include <sys/socket.h> 2765e96449SHajimu UMEMOTO 2865e96449SHajimu UMEMOTO #include <netinet/in.h> 2965e96449SHajimu UMEMOTO #include <arpa/inet.h> 3065e96449SHajimu UMEMOTO #include <arpa/nameser.h> 3165e96449SHajimu UMEMOTO 3265e96449SHajimu UMEMOTO #include <ctype.h> 3365e96449SHajimu UMEMOTO #include <resolv.h> 3465e96449SHajimu UMEMOTO #include <resolv_mt.h> 3565e96449SHajimu UMEMOTO 3665e96449SHajimu UMEMOTO #include "port_after.h" 3765e96449SHajimu UMEMOTO 3865e96449SHajimu UMEMOTO static char 3965e96449SHajimu UMEMOTO xtob(int c) { 4065e96449SHajimu UMEMOTO return (c - (((c >= '0') && (c <= '9')) ? '0' : '7')); 4165e96449SHajimu UMEMOTO } 4265e96449SHajimu UMEMOTO 4365e96449SHajimu UMEMOTO u_int 4465e96449SHajimu UMEMOTO inet_nsap_addr(const char *ascii, u_char *binary, int maxlen) { 4565e96449SHajimu UMEMOTO u_char c, nib; 4665e96449SHajimu UMEMOTO u_int len = 0; 4765e96449SHajimu UMEMOTO 4865e96449SHajimu UMEMOTO if (ascii[0] != '0' || (ascii[1] != 'x' && ascii[1] != 'X')) 4965e96449SHajimu UMEMOTO return (0); 5065e96449SHajimu UMEMOTO ascii += 2; 5165e96449SHajimu UMEMOTO 5265e96449SHajimu UMEMOTO while ((c = *ascii++) != '\0' && len < (u_int)maxlen) { 5365e96449SHajimu UMEMOTO if (c == '.' || c == '+' || c == '/') 5465e96449SHajimu UMEMOTO continue; 5565e96449SHajimu UMEMOTO if (!isascii(c)) 5665e96449SHajimu UMEMOTO return (0); 5765e96449SHajimu UMEMOTO if (islower(c)) 5865e96449SHajimu UMEMOTO c = toupper(c); 5965e96449SHajimu UMEMOTO if (isxdigit(c)) { 6065e96449SHajimu UMEMOTO nib = xtob(c); 6165e96449SHajimu UMEMOTO c = *ascii++; 6265e96449SHajimu UMEMOTO if (c != '\0') { 6365e96449SHajimu UMEMOTO c = toupper(c); 6465e96449SHajimu UMEMOTO if (isxdigit(c)) { 6565e96449SHajimu UMEMOTO *binary++ = (nib << 4) | xtob(c); 6665e96449SHajimu UMEMOTO len++; 6765e96449SHajimu UMEMOTO } else 6865e96449SHajimu UMEMOTO return (0); 6965e96449SHajimu UMEMOTO } 7065e96449SHajimu UMEMOTO else 7165e96449SHajimu UMEMOTO return (0); 7265e96449SHajimu UMEMOTO } 7365e96449SHajimu UMEMOTO else 7465e96449SHajimu UMEMOTO return (0); 7565e96449SHajimu UMEMOTO } 7665e96449SHajimu UMEMOTO return (len); 7765e96449SHajimu UMEMOTO } 7865e96449SHajimu UMEMOTO 7965e96449SHajimu UMEMOTO char * 8065e96449SHajimu UMEMOTO inet_nsap_ntoa(int binlen, const u_char *binary, char *ascii) { 8165e96449SHajimu UMEMOTO int nib; 8265e96449SHajimu UMEMOTO int i; 8365e96449SHajimu UMEMOTO char *tmpbuf = inet_nsap_ntoa_tmpbuf; 8465e96449SHajimu UMEMOTO char *start; 8565e96449SHajimu UMEMOTO 8665e96449SHajimu UMEMOTO if (ascii) 8765e96449SHajimu UMEMOTO start = ascii; 8865e96449SHajimu UMEMOTO else { 8965e96449SHajimu UMEMOTO ascii = tmpbuf; 9065e96449SHajimu UMEMOTO start = tmpbuf; 9165e96449SHajimu UMEMOTO } 9265e96449SHajimu UMEMOTO 9365e96449SHajimu UMEMOTO *ascii++ = '0'; 9465e96449SHajimu UMEMOTO *ascii++ = 'x'; 9565e96449SHajimu UMEMOTO 9665e96449SHajimu UMEMOTO if (binlen > 255) 9765e96449SHajimu UMEMOTO binlen = 255; 9865e96449SHajimu UMEMOTO 9965e96449SHajimu UMEMOTO for (i = 0; i < binlen; i++) { 10065e96449SHajimu UMEMOTO nib = *binary >> 4; 10165e96449SHajimu UMEMOTO *ascii++ = nib + (nib < 10 ? '0' : '7'); 10265e96449SHajimu UMEMOTO nib = *binary++ & 0x0f; 10365e96449SHajimu UMEMOTO *ascii++ = nib + (nib < 10 ? '0' : '7'); 10465e96449SHajimu UMEMOTO if (((i % 2) == 0 && (i + 1) < binlen)) 10565e96449SHajimu UMEMOTO *ascii++ = '.'; 10665e96449SHajimu UMEMOTO } 10765e96449SHajimu UMEMOTO *ascii = '\0'; 10865e96449SHajimu UMEMOTO return (start); 10965e96449SHajimu UMEMOTO } 110