+++ /dev/null
-From cf3fb03ccc299b1233fa1a3cc4ce66520c324e70 Mon Sep 17 00:00:00 2001
-From: Michael Tremer <michael.tremer@ipfire.org>
-Date: Wed, 21 Oct 2015 18:42:06 +0200
-Subject: [PATCH] inetcalc: Allow build on 64 bit architectures
-
-inetcalc previously used a GCC extension that was only
-available on 64 bit platforms. This patch changes the
-code to use struct in6_addr instead of __uint128_t for
-storing IP addresses.
-
-Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
----
- src/inetcalc.c | 47 +++++++++++++++++++++++++++++++++--------------
- 1 file changed, 33 insertions(+), 14 deletions(-)
-
-diff --git a/src/inetcalc.c b/src/inetcalc.c
-index f821d6ed41a6..ba692542aba7 100644
---- a/src/inetcalc.c
-+++ b/src/inetcalc.c
-@@ -30,17 +30,26 @@
-
- typedef struct ip_address {
- int family;
-- __uint128_t addr;
-+ struct in6_addr addr;
- int prefix;
- } ip_address_t;
-
--static __uint128_t prefix_to_bitmask(int prefix) {
-- __uint128_t bitmask = ~0;
-+static struct in6_addr prefix_to_bitmask(int prefix) {
-+ assert(prefix <= 128);
-
-- for (int i = 0; i < 128 - prefix; i++)
-- bitmask >>= 1;
-+ struct in6_addr bitmask;
-
-- return bitmask;
-+ for (int i = 0; i < 16; i++)
-+ bitmask.s6_addr[i] = 0;
-+
-+ for (int i = prefix, j = 0; i > 0; i -= 8, j++) {
-+ if (i >= 8)
-+ bitmask.s6_addr[j] = 0xff;
-+ else
-+ bitmask.s6_addr[j] = 0xff << (8 - i);
-+ }
-+
-+ return bitmask;
- }
-
- static int bitmask_to_prefix(uint32_t bits) {
-@@ -171,7 +180,7 @@ static int ip_address_eq(const ip_address_t* a1, const ip_address_t* a2) {
- if (a1->family != a2->family)
- return 1;
-
-- if (a1->addr != a2->addr)
-+ if (a1->addr.s6_addr != a2->addr.s6_addr)
- return 1;
-
- if (a1->prefix != a2->prefix)
-@@ -184,7 +193,7 @@ static int ip_address_gt(const ip_address_t* a1, const ip_address_t* a2) {
- if (a1->family != a2->family || a1->prefix != a2->prefix)
- return -1;
-
-- if (a1->addr > a2->addr)
-+ if (a1->addr.s6_addr > a2->addr.s6_addr)
- return 0;
-
- return 1;
-@@ -193,7 +202,7 @@ static int ip_address_gt(const ip_address_t* a1, const ip_address_t* a2) {
- static int ip_address_format_string(char* buffer, size_t size, const ip_address_t* ip) {
- assert(ip->family == AF_INET || ip->family == AF_INET6);
-
-- const char* p = inet_ntop(ip->family, &ip->addr, buffer, size);
-+ const char* p = inet_ntop(ip->family, &ip->addr.s6_addr, buffer, size);
- if (!p)
- return errno;
-
-@@ -218,21 +227,25 @@ static void ip_address_print(const ip_address_t* ip) {
- static void ip_address_make_network(ip_address_t* net, const ip_address_t* ip) {
- assert(ip->prefix >= 0);
-
-- __uint128_t mask = prefix_to_bitmask(ip->prefix);
-+ struct in6_addr mask = prefix_to_bitmask(ip->prefix);
-
- net->family = ip->family;
- net->prefix = ip->prefix;
-- net->addr = ip->addr & mask;
-+
-+ for (int i = 0; i < 16; i++)
-+ net->addr.s6_addr[i] = ip->addr.s6_addr[i] & mask.s6_addr[i];
- }
-
- static void ip_address_make_broadcast(ip_address_t* broadcast, const ip_address_t* ip) {
- assert(ip->family == AF_INET && ip->prefix >= 0);
-
-- __uint128_t mask = prefix_to_bitmask(ip->prefix);
-+ struct in6_addr mask = prefix_to_bitmask(ip->prefix);
-
- broadcast->family = ip->family;
- broadcast->prefix = ip->prefix;
-- broadcast->addr = ip->addr | ~mask;
-+
-+ for (int i = 0; i < 16; i++)
-+ broadcast->addr.s6_addr[i] = ip->addr.s6_addr[i] | ~mask.s6_addr[i];
- }
-
- static int action_check(const int family, const char* address) {
-@@ -342,7 +355,13 @@ static int action_prefix(const int family, const char* addr1, const char* addr2)
- if (r)
- return r;
-
-- uint32_t mask = ntohl(network.addr ^ broadcast.addr);
-+ struct in6_addr netmask;
-+ for (int i = 0; i < 16; i++)
-+ netmask.s6_addr[i] = network.addr.s6_addr[i] ^ broadcast.addr.s6_addr[i];
-+
-+ uint32_t mask = netmask.s6_addr[0] << 24 | netmask.s6_addr[1] << 16 |
-+ netmask.s6_addr[2] << 8 | netmask.s6_addr[3];
-+
- int prefix = bitmask_to_prefix(~mask);
- if (prefix < 0)
- return 1;
---
-2.4.3
-