https://github.com/c8ef created https://github.com/llvm/llvm-project/pull/172643
None >From 27557d0d8ab2d9e3bb6c6e2a97160f6e60eb513a Mon Sep 17 00:00:00 2001 From: c8ef <[email protected]> Date: Wed, 17 Dec 2025 20:32:55 +0800 Subject: [PATCH] [libc] Add `IN6_IS_ADDR_MC*` --- .../llvm-libc-macros/netinet-in-macros.h | 20 +++++++++++++++++++ libc/test/include/netinet_in_test.cpp | 14 +++++++++++++ 2 files changed, 34 insertions(+) diff --git a/libc/include/llvm-libc-macros/netinet-in-macros.h b/libc/include/llvm-libc-macros/netinet-in-macros.h index 863ff8759e446..88ffe92756b16 100644 --- a/libc/include/llvm-libc-macros/netinet-in-macros.h +++ b/libc/include/llvm-libc-macros/netinet-in-macros.h @@ -64,4 +64,24 @@ ((__LLVM_LIBC_CAST(reinterpret_cast, uint8_t *, a)[0]) == 0xfe && \ (__LLVM_LIBC_CAST(reinterpret_cast, uint8_t *, a)[1] & 0xc0) == 0xc0) +#define IN6_IS_ADDR_MC_NODELOCAL(a) \ + (IN6_IS_ADDR_MULTICAST(a) && \ + (__LLVM_LIBC_CAST(reinterpret_cast, uint8_t *, a)[1] & 0xf) == 0x1) + +#define IN6_IS_ADDR_MC_LINKLOCAL(a) \ + (IN6_IS_ADDR_MULTICAST(a) && \ + (__LLVM_LIBC_CAST(reinterpret_cast, uint8_t *, a)[1] & 0xf) == 0x2) + +#define IN6_IS_ADDR_MC_SITELOCAL(a) \ + (IN6_IS_ADDR_MULTICAST(a) && \ + (__LLVM_LIBC_CAST(reinterpret_cast, uint8_t *, a)[1] & 0xf) == 0x5) + +#define IN6_IS_ADDR_MC_ORGLOCAL(a) \ + (IN6_IS_ADDR_MULTICAST(a) && \ + (__LLVM_LIBC_CAST(reinterpret_cast, uint8_t *, a)[1] & 0xf) == 0x8) + +#define IN6_IS_ADDR_MC_GLOBAL(a) \ + (IN6_IS_ADDR_MULTICAST(a) && \ + (__LLVM_LIBC_CAST(reinterpret_cast, uint8_t *, a)[1] & 0xf) == 0xe) + #endif // LLVM_LIBC_MACROS_NETINET_IN_MACROS_H diff --git a/libc/test/include/netinet_in_test.cpp b/libc/test/include/netinet_in_test.cpp index e8cb8e48ff4b4..72500c4d51438 100644 --- a/libc/test/include/netinet_in_test.cpp +++ b/libc/test/include/netinet_in_test.cpp @@ -42,4 +42,18 @@ TEST(LlvmLibcNetinetInTest, IN6Macro) { buff[0] = 0xff; buff[1] = 0x80; EXPECT_FALSE(IN6_IS_ADDR_SITELOCAL(buff)); + + buff[0] = 0xff; + buff[1] = 0x1; + EXPECT_TRUE(IN6_IS_ADDR_MC_NODELOCAL(buff)); + buff[1] = 0x2; + EXPECT_TRUE(IN6_IS_ADDR_MC_LINKLOCAL(buff)); + buff[1] = 0x5; + EXPECT_TRUE(IN6_IS_ADDR_MC_SITELOCAL(buff)); + buff[1] = 0x8; + EXPECT_TRUE(IN6_IS_ADDR_MC_ORGLOCAL(buff)); + buff[1] = 0xe; + EXPECT_TRUE(IN6_IS_ADDR_MC_GLOBAL(buff)); + buff[1] = 0; + buff[0] = 0; } _______________________________________________ llvm-branch-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
