packages: sort network related packages into package/network/

[openwrt/openwrt.git] / package / 6rd / src / 6rdcalc.c

diff --git a/package/6rd/src/6rdcalc.c b/package/6rd/src/6rdcalc.c
deleted file mode 100644 (file)
index 56e07d2..0000000
--- a/package/6rd/src/6rdcalc.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * Utility used to calculate the 6rd subnet.
- *
- * Copyright 2012, Stéphan Kochen <stephan@kochen.nl>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/errno.h>
-#include <arpa/inet.h>
-#include <netinet/in.h>
-
-#define INET_PREFIXSTRLEN (INET_ADDRSTRLEN+3)
-#define INET6_PREFIXSTRLEN (INET6_ADDRSTRLEN+4)
-
-static void print_usage()
-{
-       fprintf(stderr, "Usage: 6rdcalc <v6 prefix>/<mask> <v4 address>/<mask>\n");
-       exit(1);
-}
-
-static void print_error()
-{
-       fprintf(stderr, "%s", strerror(errno));
-       exit(1);
-}
-
-static void parse_str(int af, char *str, void *addr, unsigned long *mask)
-{
-       int ret;
-       char *slash;
-
-       /* Split the address at the slash. */
-       if ((slash = strchr(str, '/')) == NULL)
-               print_usage();
-       *slash = '\0';
-
-       /* Parse the address. */
-       if ((ret = inet_pton(af, str, addr)) != 1) {
-               if (ret == 0)
-                       print_usage();
-               else
-                       print_error();
-       }
-
-       /* Parse the mask. */
-       *mask = strtoul(slash+1, NULL, 10);
-       if ((af == AF_INET  && *mask >  32) ||
-               (af == AF_INET6 && *mask > 128))
-               print_usage();
-}
-
-int main(int argc, const char **argv)
-{
-       char v6str[INET6_PREFIXSTRLEN], v4str[INET_PREFIXSTRLEN];
-       struct in6_addr v6;
-       struct in_addr v4;
-       unsigned long v6it, v4it, mask;
-       unsigned char *byte4, *byte6;
-       unsigned char bit4, bit6;
-
-       /* Check parameters. */
-       if (argc != 3)
-               print_usage();
-
-       /* Parse the v6 address. */
-       strncpy(v6str, argv[1], INET6_PREFIXSTRLEN);
-       v6str[INET6_PREFIXSTRLEN-1] = '\0';
-       parse_str(AF_INET6, v6str, &v6, &v6it);
-
-       /* Parse the v4 address */
-       strncpy(v4str, argv[2], INET_PREFIXSTRLEN);
-       v6str[INET_PREFIXSTRLEN-1] = '\0';
-       parse_str(AF_INET, v4str, &v4, &v4it);
-
-       /* Check if the combined mask is within bounds. */
-       mask = (32 - v4it) + v6it;
-       if (mask > 128)
-               print_usage();
-
-       /* Combine the addresses. */
-       while (v4it < 32) {
-               byte6 = (unsigned char *)(&v6.s6_addr) + (v6it >> 3);
-               byte4 = (unsigned char *)(&v4.s_addr)  + (v4it >> 3);
-               bit6 = 128 >> (v6it & 0x07);
-               bit4 = 128 >> (v4it & 0x07);
-
-               if (*byte4 & bit4)
-                       *byte6 |= bit6;
-               else
-                       *byte6 &= ~bit6;
-
-               v4it++; v6it++;
-       }
-
-       /* Clear remaining bits. */
-       while (v6it < 128) {
-               byte6 = (unsigned char *)(&v6.s6_addr) + (v6it >> 2);
-               bit6 = 128 >> (v6it & 0x07);
-
-               *byte6 &= ~bit6;
-
-               v6it++;
-       }
-
-       /* Print the subnet prefix. */
-       if (inet_ntop(AF_INET6, &v6, v6str, sizeof(v6str)) == NULL)
-               print_error();
-       printf("%s/%lu\n", v6str, mask);
-       return 0;
-}