diff options
Diffstat (limited to 'lib/libc/net/iso_addr.c')
| -rw-r--r-- | lib/libc/net/iso_addr.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/lib/libc/net/iso_addr.c b/lib/libc/net/iso_addr.c new file mode 100644 index 0000000..d81ee5f --- /dev/null +++ b/lib/libc/net/iso_addr.c @@ -0,0 +1,119 @@ +/* + * 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. + */ + +#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/cdefs.h> +__FBSDID("$FreeBSD$"); + +#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) + const char *addr; +{ + static struct iso_addr out_addr; + char *cp = out_addr.isoa_genaddr; + char *cplim = cp + sizeof(out_addr.isoa_genaddr); + 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; +} |
