Index: src/lib/util/sysendian.h |
diff --git a/src/lib/util/sysendian.h b/src/lib/util/sysendian.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..62ef31a42bd0245caa2ea20d509fbed9cab579d1 |
--- /dev/null |
+++ b/src/lib/util/sysendian.h |
@@ -0,0 +1,140 @@ |
+/*- |
+ * Copyright 2007-2009 Colin Percival |
+ * All rights reserved. |
+ * |
+ * Redistribution and use in source and binary forms, with or without |
+ * modification, are permitted provided that the following conditions |
+ * are met: |
+ * 1. Redistributions of source code must retain the above copyright |
+ * notice, this list of conditions and the following disclaimer. |
+ * 2. Redistributions in binary form must reproduce the above copyright |
+ * notice, this list of conditions and the following disclaimer in the |
+ * documentation and/or other materials provided with the distribution. |
+ * |
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
+ * SUCH DAMAGE. |
+ * |
+ * This file was originally written by Colin Percival as part of the Tarsnap |
+ * online backup system. |
+ */ |
+#ifndef _SYSENDIAN_H_ |
+#define _SYSENDIAN_H_ |
+ |
+#include "scrypt_platform.h" |
+ |
+/* If we don't have be64enc, the <sys/endian.h> we have isn't usable. */ |
+#if !HAVE_DECL_BE64ENC |
+#undef HAVE_SYS_ENDIAN_H |
+#endif |
+ |
+#ifdef HAVE_SYS_ENDIAN_H |
+ |
+#include <sys/endian.h> |
+ |
+#else |
+ |
+#include <stdint.h> |
+ |
+static inline uint32_t |
+be32dec(const void *pp) |
+{ |
+ const uint8_t *p = (uint8_t const *)pp; |
+ |
+ return ((uint32_t)(p[3]) + ((uint32_t)(p[2]) << 8) + |
+ ((uint32_t)(p[1]) << 16) + ((uint32_t)(p[0]) << 24)); |
+} |
+ |
+static inline void |
+be32enc(void *pp, uint32_t x) |
+{ |
+ uint8_t * p = (uint8_t *)pp; |
+ |
+ p[3] = x & 0xff; |
+ p[2] = (x >> 8) & 0xff; |
+ p[1] = (x >> 16) & 0xff; |
+ p[0] = (x >> 24) & 0xff; |
+} |
+ |
+static inline uint64_t |
+be64dec(const void *pp) |
+{ |
+ const uint8_t *p = (uint8_t const *)pp; |
+ |
+ return ((uint64_t)(p[7]) + ((uint64_t)(p[6]) << 8) + |
+ ((uint64_t)(p[5]) << 16) + ((uint64_t)(p[4]) << 24) + |
+ ((uint64_t)(p[3]) << 32) + ((uint64_t)(p[2]) << 40) + |
+ ((uint64_t)(p[1]) << 48) + ((uint64_t)(p[0]) << 56)); |
+} |
+ |
+static inline void |
+be64enc(void *pp, uint64_t x) |
+{ |
+ uint8_t * p = (uint8_t *)pp; |
+ |
+ p[7] = x & 0xff; |
+ p[6] = (x >> 8) & 0xff; |
+ p[5] = (x >> 16) & 0xff; |
+ p[4] = (x >> 24) & 0xff; |
+ p[3] = (x >> 32) & 0xff; |
+ p[2] = (x >> 40) & 0xff; |
+ p[1] = (x >> 48) & 0xff; |
+ p[0] = (x >> 56) & 0xff; |
+} |
+ |
+static inline uint32_t |
+le32dec(const void *pp) |
+{ |
+ const uint8_t *p = (uint8_t const *)pp; |
+ |
+ return ((uint32_t)(p[0]) + ((uint32_t)(p[1]) << 8) + |
+ ((uint32_t)(p[2]) << 16) + ((uint32_t)(p[3]) << 24)); |
+} |
+ |
+static inline void |
+le32enc(void *pp, uint32_t x) |
+{ |
+ uint8_t * p = (uint8_t *)pp; |
+ |
+ p[0] = x & 0xff; |
+ p[1] = (x >> 8) & 0xff; |
+ p[2] = (x >> 16) & 0xff; |
+ p[3] = (x >> 24) & 0xff; |
+} |
+ |
+static inline uint64_t |
+le64dec(const void *pp) |
+{ |
+ const uint8_t *p = (uint8_t const *)pp; |
+ |
+ return ((uint64_t)(p[0]) + ((uint64_t)(p[1]) << 8) + |
+ ((uint64_t)(p[2]) << 16) + ((uint64_t)(p[3]) << 24) + |
+ ((uint64_t)(p[4]) << 32) + ((uint64_t)(p[5]) << 40) + |
+ ((uint64_t)(p[6]) << 48) + ((uint64_t)(p[7]) << 56)); |
+} |
+ |
+static inline void |
+le64enc(void *pp, uint64_t x) |
+{ |
+ uint8_t * p = (uint8_t *)pp; |
+ |
+ p[0] = x & 0xff; |
+ p[1] = (x >> 8) & 0xff; |
+ p[2] = (x >> 16) & 0xff; |
+ p[3] = (x >> 24) & 0xff; |
+ p[4] = (x >> 32) & 0xff; |
+ p[5] = (x >> 40) & 0xff; |
+ p[6] = (x >> 48) & 0xff; |
+ p[7] = (x >> 56) & 0xff; |
+} |
+#endif /* !HAVE_SYS_ENDIAN_H */ |
+ |
+#endif /* !_SYSENDIAN_H_ */ |