1 files changed, 170 insertions, 0 deletions
diff --git a/src/include/k5-platform.h b/src/include/k5-platform.h
new file mode 100644
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--- /dev/null
+++ b/src/include/k5-platform.h
@@ -0,0 +1,170 @@
+/*
+ * k5-platform.h
+ *
+ * Copyright 2003  by the Massachusetts Institute of Technology.
+ * All Rights Reserved.
+ *
+ * Export of this software from the United States of America may
+ *   require a specific license from the United States Government.
+ *   It is the responsibility of any person or organization contemplating
+ *   export to obtain such a license before exporting.
+ * 
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of M.I.T. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission.	Furthermore if you modify this software you must label
+ * your software as modified software and not distribute it in such a
+ * fashion that it might be confused with the original M.I.T. software.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose.  It is provided "as is" without express
+ * or implied warranty.
+ * 
+ *
+ * Some platform-dependent definitions to sync up the C support level.
+ * Some to a C99-ish level, some related utility code.
+ *
+ * Currently: make "static inline" work; 64-bit types and load/store
+ * code; SIZE_MAX.
+ */
+
+#ifndef K5_PLATFORM_H
+#define K5_PLATFORM_H
+
+#if !defined(inline)
+# if __STDC_VERSION__ >= 199901L
+/* C99 supports inline, don't do anything.  */
+# elif defined(__GNUC__)
+#  define inline __inline__ /* this form silences -pedantic warnings */
+# elif defined(__mips) && defined(__sgi)
+#  define inline __inline /* IRIX used at MIT does inline but not c99 yet */
+# elif defined(__sun) && __SUNPRO_C >= 0x540
+/* The Forte Developer 7 C compiler supports "inline".  */
+# elif defined(_WIN32)
+#  define inline __inline
+# else
+#  define inline /* nothing, just static */
+# endif
+#endif
+
+#include "autoconf.h"
+
+/* 64-bit support: krb5_ui_8 and krb5_int64.
+
+   This should move to krb5.h eventually, but without the namespace
+   pollution from the autoconf macros.  */
+#if defined(HAVE_STDINT_H) || defined(HAVE_INTTYPES_H)
+# ifdef HAVE_STDINT_H
+#  include <stdint.h>
+# endif
+# ifdef HAVE_INTTYPES_H
+#  include <inttypes.h>
+# endif
+# define INT64_TYPE int64_t
+# define UINT64_TYPE uint64_t
+#elif defined(_WIN32)
+# define INT64_TYPE signed __int64
+# define UINT64_TYPE unsigned __int64
+#else /* not Windows, and neither stdint.h nor inttypes.h */
+# define INT64_TYPE signed long long
+# define UINT64_TYPE unsigned long long
+#endif
+
+#ifndef SIZE_MAX
+# define SIZE_MAX ((size_t)((size_t)0 - 1))
+#endif
+
+/* Read and write integer values as (unaligned) octet strings in
+   specific byte orders.
+
+   Add per-platform optimizations later if needed.  (E.g., maybe x86
+   unaligned word stores and gcc/asm instructions for byte swaps,
+   etc.)  */
+
+static inline void
+store_16_be (unsigned int val, unsigned char *p)
+{
+    p[0] = (val >>  8) & 0xff;
+    p[1] = (val      ) & 0xff;
+}
+static inline void
+store_16_le (unsigned int val, unsigned char *p)
+{
+    p[1] = (val >>  8) & 0xff;
+    p[0] = (val      ) & 0xff;
+}
+static inline void
+store_32_be (unsigned int val, unsigned char *p)
+{
+    p[0] = (val >> 24) & 0xff;
+    p[1] = (val >> 16) & 0xff;
+    p[2] = (val >>  8) & 0xff;
+    p[3] = (val      ) & 0xff;
+}
+static inline void
+store_32_le (unsigned int val, unsigned char *p)
+{
+    p[3] = (val >> 24) & 0xff;
+    p[2] = (val >> 16) & 0xff;
+    p[1] = (val >>  8) & 0xff;
+    p[0] = (val      ) & 0xff;
+}
+static inline void
+store_64_be (UINT64_TYPE val, unsigned char *p)
+{
+    p[0] = (unsigned char)((val >> 56) & 0xff);
+    p[1] = (unsigned char)((val >> 48) & 0xff);
+    p[2] = (unsigned char)((val >> 40) & 0xff);
+    p[3] = (unsigned char)((val >> 32) & 0xff);
+    p[4] = (unsigned char)((val >> 24) & 0xff);
+    p[5] = (unsigned char)((val >> 16) & 0xff);
+    p[6] = (unsigned char)((val >>  8) & 0xff);
+    p[7] = (unsigned char)((val      ) & 0xff);
+}
+static inline void
+store_64_le (UINT64_TYPE val, unsigned char *p)
+{
+    p[7] = (unsigned char)((val >> 56) & 0xff);
+    p[6] = (unsigned char)((val >> 48) & 0xff);
+    p[5] = (unsigned char)((val >> 40) & 0xff);
+    p[4] = (unsigned char)((val >> 32) & 0xff);
+    p[3] = (unsigned char)((val >> 24) & 0xff);
+    p[2] = (unsigned char)((val >> 16) & 0xff);
+    p[1] = (unsigned char)((val >>  8) & 0xff);
+    p[0] = (unsigned char)((val      ) & 0xff);
+}
+static inline unsigned short
+load_16_be (unsigned char *p)
+{
+    return (p[1] | (p[0] << 8));
+}
+static inline unsigned short
+load_16_le (unsigned char *p)
+{
+    return (p[0] | (p[1] << 8));
+}
+static inline unsigned int
+load_32_be (unsigned char *p)
+{
+    return (p[3] | (p[2] << 8) | (p[1] << 16) | (p[0] << 24));
+}
+static inline unsigned int
+load_32_le (unsigned char *p)
+{
+    return (p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24));
+}
+static inline UINT64_TYPE
+load_64_be (unsigned char *p)
+{
+    return ((UINT64_TYPE)load_32_be(p) << 32) | load_32_be(p+4);
+}
+static inline UINT64_TYPE
+load_64_le (unsigned char *p)
+{
+    return ((UINT64_TYPE)load_32_le(p+4) << 32) | load_32_le(p);
+}
+
+#endif /* K5_PLATFORM_H */