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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [libnetworking/] [libc/] [iso_addr.c] - Rev 30
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/* * Copyright (c) 1989, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $Id: iso_addr.c,v 1.2 2001-09-27 12:01:53 chris Exp $ */ #if defined(LIBC_SCCS) && !defined(lint) static char sccsid[] = "@(#)iso_addr.c 8.1 (Berkeley) 6/4/93"; #endif /* LIBC_SCCS and not lint */ #include <sys/types.h> #include <netiso/iso.h> #include <string.h> /* States*/ #define VIRGIN 0 #define GOTONE 1 #define GOTTWO 2 /* Inputs */ #define DIGIT (4*0) #define END (4*1) #define DELIM (4*2) struct iso_addr * iso_addr(addr) register const char *addr; { static struct iso_addr out_addr; register char *cp = out_addr.isoa_genaddr; char *cplim = cp + sizeof(out_addr.isoa_genaddr); register int byte = 0, state = VIRGIN, new; bzero((char *)&out_addr, sizeof(out_addr)); do { if ((*addr >= '0') && (*addr <= '9')) { new = *addr - '0'; } else if ((*addr >= 'a') && (*addr <= 'f')) { new = *addr - 'a' + 10; } else if ((*addr >= 'A') && (*addr <= 'F')) { new = *addr - 'A' + 10; } else if (*addr == 0) state |= END; else state |= DELIM; addr++; switch (state /* | INPUT */) { case GOTTWO | DIGIT: *cp++ = byte; /*FALLTHROUGH*/ case VIRGIN | DIGIT: state = GOTONE; byte = new; continue; case GOTONE | DIGIT: state = GOTTWO; byte = new + (byte << 4); continue; default: /* | DELIM */ state = VIRGIN; *cp++ = byte; byte = 0; continue; case GOTONE | END: case GOTTWO | END: *cp++ = byte; /* FALLTHROUGH */ case VIRGIN | END: break; } break; } while (cp < cplim); out_addr.isoa_len = cp - out_addr.isoa_genaddr; return (&out_addr); } static char hexlist[] = "0123456789abcdef"; char * iso_ntoa(isoa) const struct iso_addr *isoa; { static char tmpbuf[sizeof(isoa->isoa_genaddr)*3]; const u_char *binary; char *cp; int i; binary = isoa->isoa_genaddr; cp = tmpbuf; for (i = 0; i < isoa->isoa_len; i++) { *cp++ = hexlist[*binary >> 4]; *cp++ = hexlist[*binary++ & 0xf]; if ((((i % 2) == 0) && ((i + 1) < isoa->isoa_len))) *cp++ = '.'; } *cp = '\0'; return tmpbuf; }
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