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authorMattias Andrée <maandree@kth.se>2019-02-11 16:22:00 +0100
committerMattias Andrée <maandree@kth.se>2019-02-11 16:22:00 +0100
commit5ff4c5af715d098852d124de116d354ee10f4ea4 (patch)
tree5789ad5798f2dbf21d9406a2942e48b222f773ae /libkeccak_state_marshal.c
parentRemove old file (diff)
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Split most .c files into one per function and flatten file hierarchy
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to '')
-rw-r--r--libkeccak_state_marshal.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/libkeccak_state_marshal.c b/libkeccak_state_marshal.c
new file mode 100644
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--- /dev/null
+++ b/libkeccak_state_marshal.c
@@ -0,0 +1,33 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+/**
+ * Marshal a `libkeccak_state_t` into a buffer
+ *
+ * @param state The state to marshal
+ * @param data The output buffer
+ * @return The number of bytes stored to `data`
+ */
+size_t
+libkeccak_state_marshal(const libkeccak_state_t *restrict state, void *restrict data_)
+{
+#define set(type, var) *((type *)data) = state->var, data += sizeof(type) / sizeof(char)
+ char *restrict data = data_;
+ set(long int, r);
+ set(long int, c);
+ set(long int, n);
+ set(long int, b);
+ set(long int, w);
+ set(int64_t, wmod);
+ set(long int, l);
+ set(long int, nr);
+ memcpy(data, state->S, sizeof(state->S));
+ data += sizeof(state->S) / sizeof(char);
+ set(size_t, mptr);
+ set(size_t, mlen);
+ memcpy(data, state->M, state->mptr * sizeof(char));
+ data += state->mptr;
+ return sizeof(libkeccak_state_t) - sizeof(char *) + state->mptr * sizeof(char);
+#undef set
+}