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authorRémi Verschelde <rverschelde@gmail.com>2021-11-19 12:00:37 +0100
committerRémi Verschelde <rverschelde@gmail.com>2021-11-19 12:00:37 +0100
commit432ac521ef50ca41a81cffc1770cb46f72a422f6 (patch)
treebe637a1ac10bf6c248a28880a3b9352ae47e5ecf /thirdparty/miniupnpc/src/addr_is_reserved.c
parenta777f01052161f0ea3b1344e605ac4222498395c (diff)
miniupnpc: Update to version 2.2.3
Library code and public headers are now properly separated, we can fix include paths to remove the redundant subfolder.
Diffstat (limited to 'thirdparty/miniupnpc/src/addr_is_reserved.c')
-rw-r--r--thirdparty/miniupnpc/src/addr_is_reserved.c79
1 files changed, 79 insertions, 0 deletions
diff --git a/thirdparty/miniupnpc/src/addr_is_reserved.c b/thirdparty/miniupnpc/src/addr_is_reserved.c
new file mode 100644
index 0000000000..18c6424201
--- /dev/null
+++ b/thirdparty/miniupnpc/src/addr_is_reserved.c
@@ -0,0 +1,79 @@
+/* $Id: addr_is_reserved.c,v 1.4 2021/03/02 23:40:32 nanard Exp $ */
+/* vim: tabstop=4 shiftwidth=4 noexpandtab
+ * Project : miniupnp
+ * Web : http://miniupnp.free.fr/ or https://miniupnp.tuxfamily.org/
+ * Author : Thomas BERNARD
+ * copyright (c) 2005-2021 Thomas Bernard
+ * This software is subjet to the conditions detailed in the
+ * provided LICENSE file. */
+#ifdef _WIN32
+/* Win32 Specific includes and defines */
+#include <winsock2.h>
+#include <ws2tcpip.h>
+#if !defined(_MSC_VER)
+#include <stdint.h>
+#else /* !defined(_MSC_VER) */
+typedef unsigned long uint32_t;
+#endif /* !defined(_MSC_VER) */
+#else /* _WIN32 */
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#endif /* _WIN32 */
+
+/* List of IP address blocks which are private / reserved and therefore not suitable for public external IP addresses */
+#define IP(a, b, c, d) (((a) << 24) + ((b) << 16) + ((c) << 8) + (d))
+#define MSK(m) (32-(m))
+static const struct { uint32_t address; uint32_t rmask; } reserved[] = {
+ { IP( 0, 0, 0, 0), MSK( 8) }, /* RFC1122 "This host on this network" */
+ { IP( 10, 0, 0, 0), MSK( 8) }, /* RFC1918 Private-Use */
+ { IP(100, 64, 0, 0), MSK(10) }, /* RFC6598 Shared Address Space */
+ { IP(127, 0, 0, 0), MSK( 8) }, /* RFC1122 Loopback */
+ { IP(169, 254, 0, 0), MSK(16) }, /* RFC3927 Link-Local */
+ { IP(172, 16, 0, 0), MSK(12) }, /* RFC1918 Private-Use */
+ { IP(192, 0, 0, 0), MSK(24) }, /* RFC6890 IETF Protocol Assignments */
+ { IP(192, 0, 2, 0), MSK(24) }, /* RFC5737 Documentation (TEST-NET-1) */
+ { IP(192, 31, 196, 0), MSK(24) }, /* RFC7535 AS112-v4 */
+ { IP(192, 52, 193, 0), MSK(24) }, /* RFC7450 AMT */
+ { IP(192, 88, 99, 0), MSK(24) }, /* RFC7526 6to4 Relay Anycast */
+ { IP(192, 168, 0, 0), MSK(16) }, /* RFC1918 Private-Use */
+ { IP(192, 175, 48, 0), MSK(24) }, /* RFC7534 Direct Delegation AS112 Service */
+ { IP(198, 18, 0, 0), MSK(15) }, /* RFC2544 Benchmarking */
+ { IP(198, 51, 100, 0), MSK(24) }, /* RFC5737 Documentation (TEST-NET-2) */
+ { IP(203, 0, 113, 0), MSK(24) }, /* RFC5737 Documentation (TEST-NET-3) */
+ { IP(224, 0, 0, 0), MSK( 4) }, /* RFC1112 Multicast */
+ { IP(240, 0, 0, 0), MSK( 4) }, /* RFC1112 Reserved for Future Use + RFC919 Limited Broadcast */
+};
+#undef IP
+#undef MSK
+
+/**
+ * @return 1 or 0
+ */
+int addr_is_reserved(const char * addr_str)
+{
+ uint32_t addr_n, address;
+ size_t i;
+
+#if defined(_WIN32) && _WIN32_WINNT < 0x0600 // _WIN32_WINNT_VISTA
+ addr_n = inet_addr(addr_str);
+ if (addr_n == INADDR_NONE)
+ return 1;
+#else
+ /* was : addr_n = inet_addr(addr_str); */
+ if (inet_pton(AF_INET, addr_str, &addr_n) <= 0) {
+ /* error */
+ return 1;
+ }
+#endif
+
+ address = ntohl(addr_n);
+
+ for (i = 0; i < sizeof(reserved)/sizeof(reserved[0]); ++i) {
+ if ((address >> reserved[i].rmask) == (reserved[i].address >> reserved[i].rmask))
+ return 1;
+ }
+
+ return 0;
+}