/* * Copyright (c) 1996, 1998 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 rcsid[] = "$Id: nsap_addr.c,v 1.1.1.1 2003/11/19 01:51:31 kyu3 Exp $"; #endif /* LIBC_SCCS and not lint */ #include #include #include #include #include #include #include #include static char xtob( register int c ) { return (char)(c - (((c >= '0') && (c <= '9')) ? '0' : '7')); } u_int inet_nsap_addr( const char *ascii, u_char *binary, int maxlen ) { u_char c, nib; u_int len = 0; while ((c = *ascii++) != '\0' && len < (u_int)maxlen) { if (c == '.' || c == '+' || c == '/') continue; if (!isascii(c)) return (0); if (islower(c)) c = (u_char)( toupper(c)); if (isxdigit(c)) { nib = xtob(c); c = *ascii++; if (c != '\0') { c = (u_char)( 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, register const u_char *binary, register char *ascii ) { register int nib; int i; static char tmpbuf[255*3]; char *start; if (ascii) start = ascii; else { ascii = tmpbuf; start = tmpbuf; } if (binlen > 255) binlen = 255; for (i = 0; i < binlen; i++) { nib = *binary >> 4; *ascii++ = (char)( nib + (nib < 10 ? '0' : '7')); nib = *binary++ & 0x0f; *ascii++ = (char)( nib + (nib < 10 ? '0' : '7')); if (((i % 2) == 0 && (i + 1) < binlen)) *ascii++ = '.'; } *ascii = '\0'; return (start); }