diff options
Diffstat (limited to 'usr.sbin/named/addr/addr.c')
| -rw-r--r-- | usr.sbin/named/addr/addr.c | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/usr.sbin/named/addr/addr.c b/usr.sbin/named/addr/addr.c new file mode 100644 index 00000000000..a71664980ea --- /dev/null +++ b/usr.sbin/named/addr/addr.c @@ -0,0 +1,173 @@ +#if !defined(lint) && !defined(SABER) +static char rcsid[] = "$Id: addr.c,v 1.1 1997/03/12 11:30:35 downsj Exp $"; +#endif /* not lint */ + +/* Copyright (c) 1996 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. + */ + +#include <sys/param.h> +#include <sys/file.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <arpa/nameser.h> +#include <arpa/inet.h> +#include <string.h> +#include <stdio.h> +#include <ctype.h> +#include "../conf/portability.h" + +extern char *optarg; +extern int optind; +extern int opterr; +extern int optopt; + +static const char *prog = "addr"; + +#define BIGGEST_ADDRESS IN6ADDRSZ + +static void +usage() { + fprintf(stderr, + "usage: %s [-4] [-6] [-n hexstring] [-p address]\n", + prog); + exit(1); +} + +/* Warning: this scribbles on `dst' even if it's going to return `0'. */ +static int +hexstring(src, dst, len) + const char *src; + u_char *dst; + int len; +{ + static const char xdigits[] = "0123456789abcdef"; + u_char *ptr = dst, *end = dst + len; + u_int val; + int ch, digits; + + val = 0; + digits = 0; + bzero((void*)dst, len); + while ((ch = *src++) != '\0') { + if (ch == '0' && (*src == 'x' || *src == 'X')) { + src++; + continue; + } + if (isascii(ch) && (isspace(ch) || ispunct(ch))) { + if (digits > 0) { + if (ptr == end) + return (0); + *ptr++ = (u_char) (val & 0xff); + val = 0; + digits = 0; + } + digits = 0; + continue; + } + if (!isascii(ch) || !isxdigit(ch)) + return (0); + if (isupper(ch)) + ch = tolower(ch); + /* Clock it in using little endian arithmetic. */ + val <<= 4; + val |= (strchr(xdigits, ch) - xdigits); + if (++digits == 2) { + if (ptr == end) + return (0); + *ptr++ = (u_char) (val & 0xff); + digits = 0; + val = 0; + } + } + if (digits > 0) { + if (ptr == end) + return (0); + *ptr++ = (u_char) (val & 0xff); + } + return ((ptr - dst) == len); +} + +static void +display(input, af, addr, len) + const char *input; + int af; + const u_char *addr; + int len; +{ + static int before = 0; + char p[sizeof "xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:255.255.255.255"]; + int i; + + if (before) + putchar('\n'); + else + before++; + + printf("Input: \"%s\"\n", input); + printf("Network: [af%d len%d]", af, len); + for (i = 0; i < len; i++) + printf(" %02x", addr[i]); + putchar('\n'); + printf("Presentation: \"%s\"\n", inet_ntop(af, addr, p, sizeof p)); +} + +int +main(argc, argv) + int argc; + char *argv[]; +{ + u_char addr[BIGGEST_ADDRESS]; + int optchr, af, len; + + prog = argv[0]; + af = AF_INET; + len = INADDRSZ; + while ((optchr = getopt(argc, argv, "46n:p:")) != -1) { + switch (optchr) { + case '4': + af = AF_INET; + len = INADDRSZ; + break; + case '6': + af = AF_INET6; + len = IN6ADDRSZ; + break; + case 'n': + if (!hexstring(optarg, addr, len)) { + fprintf(stderr, "bad hex string: \"%s\"\n", + optarg); + usage(); + /* NOTREACHED */ + } + display(optarg, af, addr, len); + break; + case 'p': + if (inet_pton(af, optarg, addr) <= 0) { + fprintf(stderr, "bad address: \"%s\"\n", + optarg); + usage(); + /* NOTREACHED */ + } + display(optarg, af, addr, len); + break; + default: + usage(); + /* NOTREACHED */ + } + } + exit(0); + /* NOTREACHED */ +} |