diff options
Diffstat (limited to 'bin/tools/arpaname.c')
-rw-r--r-- | bin/tools/arpaname.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/bin/tools/arpaname.c b/bin/tools/arpaname.c new file mode 100644 index 0000000..e7f1434 --- /dev/null +++ b/bin/tools/arpaname.c @@ -0,0 +1,53 @@ +/* + * Copyright (C) 2009 Internet Systems Consortium, Inc. ("ISC") + * + * Permission to use, copy, modify, and/or 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 ISC DISCLAIMS ALL WARRANTIES WITH + * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS. IN NO EVENT SHALL ISC 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. + */ + +/* $Id: arpaname.c,v 1.4 2009-10-27 03:05:33 marka Exp $ */ + +#include "config.h" + +#include <isc/net.h> + +#include <stdio.h> + +#define UNUSED(x) (void)(x) + +int +main(int argc, char *argv[]) { + unsigned char buf[16]; + int i; + + UNUSED(argc); + + while (argv[1]) { + if (inet_pton(AF_INET6, argv[1], buf) == 1) { + for (i = 15; i >= 0; i--) + fprintf(stdout, "%X.%X.", buf[i] & 0xf, + (buf[i] >> 4) & 0xf); + fprintf(stdout, "IP6.ARPA\n"); + argv++; + continue; + } + if (inet_pton(AF_INET, argv[1], buf) == 1) { + fprintf(stdout, "%u.%u.%u.%u.IN-ADDR.ARPA\n", + buf[3], buf[2], buf[1], buf[0]); + argv++; + continue; + } + return (1); + } + fflush(stdout); + return(ferror(stdout)); +} |