/*
- * Copyright (C) 2007-2011 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2007 Andre Noll <maan@tuebingen.mpg.de>
*
* Licensed under the GPL v2. For licencing details see COPYING.
*/
-/** \file portable_io.h Inline functions for endian-independent binary IO. */
+/** \file portable_io.h Inline functions for binary IO. */
static inline uint64_t read_portable(unsigned bits, const char *buf)
{
return ret;
}
+static inline uint64_t read_portable_be(unsigned bits, const char *buf)
+{
+ uint64_t ret = 0;
+ int i, num_bytes = bits / 8;
+
+ for (i = 0; i < num_bytes; i++) {
+ unsigned char c = buf[i];
+ ret += ((uint64_t)c << (8 * (num_bytes - i - 1)));
+ }
+ return ret;
+}
+
static inline uint64_t read_u64(const char *buf)
{
return read_portable(64, buf);
return read_portable(8, buf);
}
+static inline uint64_t read_u64_be(const char *buf)
+{
+ return read_portable_be(64, buf);
+}
+
+static inline uint32_t read_u32_be(const char *buf)
+{
+ return read_portable_be(32, buf);
+}
+
+static inline uint16_t read_u16_be(const char *buf)
+{
+ return read_portable_be(16, buf);
+}
+
static inline void write_portable(unsigned bits, char *buf, uint64_t val)
{
int i, num_bytes = bits / 8;
-// fprintf(stderr, "val: %lu\n", val);
for (i = 0; i < num_bytes; i++) {
buf[i] = val & 0xff;
-// fprintf(stderr, "buf[%d]=%x\n", i, buf[i]);
+ val = val >> 8;
+ }
+}
+
+static inline void write_portable_be(unsigned bits, char *buf, uint64_t val)
+{
+ int i, num_bytes = bits / 8;
+ for (i = 0; i < num_bytes; i++) {
+ buf[num_bytes - i - 1] = val & 0xff;
val = val >> 8;
}
}
{
write_portable(8, buf, (uint64_t) val);
}
+
+static inline void write_u64_be(char *buf, uint64_t val)
+{
+ write_portable_be(64, buf, val);
+}
+
+static inline void write_u32_be(char *buf, uint32_t val)
+{
+ write_portable_be(32, buf, (uint64_t) val);
+}
+
+static inline void write_u16_be(char *buf, uint16_t val)
+{
+ write_portable_be(16, buf, (uint64_t) val);
+}