Initial Commit

Signed-off-by: Marc <foxtrot@malloc.me>

1 files changed, 81 insertions, 0 deletions

@@ -0,0 +1,81 @@
+#include <errno.h>
+#include <stddef.h>
+#include <string.h>
+
+#if defined(linux) || defined(Linux) || defined(__linux__) || defined(__linux) || defined(__gnu_linux__)
+#include <endian.h>
+#if defined(__UCLIBC__)
+#include <asm/byteorder.h>
+#ifndef le16toh
+#define le16toh __le16_to_cpu
+#endif
+#ifndef le32toh
+#define le32toh __le32_to_cpu
+#endif
+#endif
+#endif
+
+#if defined(__CYGWIN32__) || defined(CYGWIN)
+#include <asm/byteorder.h>
+#include <endian.h>
+#endif
+
+#if defined(__APPLE__)
+#include <machine/endian.h>
+#endif
+
+#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__OpenBSD__) || defined(__MidnightBSD__) ||    \
+    defined(__NetBSD__)
+#include <sys/endian.h>
+#include <sys/types.h>
+#endif
+
+#if defined(__SVR4) && defined(__sun__)
+#include <sys/byteorder.h>
+#include <sys/types.h>
+#endif
+
+#ifndef le16_to_cpu
+#define le16_to_cpu le16toh
+#endif
+
+#ifndef le32_to_cpu
+#define le32_to_cpu le32toh
+#endif
+
+#if defined(_MSC_VER)
+//  Microsoft
+#define EXPORT __declspec(dllexport)
+#define IMPORT __declspec(dllimport)
+#elif defined(__GNUC__) || defined(__llvm__) || defined(__clang__) || defined(__INTEL_COMPILER)
+#define EXPORT __attribute__((visibility("default")))
+#define IMPORT
+#else
+//  do nothing and hope for the best?
+#define EXPORT
+#define IMPORT
+#pragma warning Unknown dynamic link import / export semantics.
+#endif
+
+#if defined(RADIOTAP_FAST_UNALIGNED_ACCESS)
+#define get_unaligned(p)                                                                                     \
+    __extension__({                                                                                          \
+        struct packed_dummy_struct {                                                                         \
+            typeof(*(p)) __val;                                                                              \
+        } __attribute__((packed)) *__ptr = (void *) (p);                                                     \
+                                                                                                             \
+        __ptr->__val;                                                                                        \
+    })
+#else
+#define get_unaligned(p)                                                                                     \
+    __extension__({                                                                                          \
+        typeof(*(p)) __tmp;                                                                                  \
+        memmove(&__tmp, (p), sizeof(*(p)));                                                                  \
+        __tmp;                                                                                               \
+    })
+#endif
+
+#define get_unaligned_le16(p) le16_to_cpu(get_unaligned((uint16_t *) (p)))
+#define get_unaligned_le32(p) le32_to_cpu(get_unaligned((uint32_t *) (p)))
+
+#define UNALIGNED_ADDRESS(x) ((void *) (x))