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author | Doug Hogan <[email protected]> | 2018-12-20 02:08:56 -0800 |
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committer | Doug Hogan <[email protected]> | 2018-12-20 02:30:55 -0800 |
commit | 121efebb92f81ac4136c63de79fa88b2b6cedfa2 (patch) | |
tree | a4b70742dd75fe545c21d7e159008fee21096830 /lib/crypto/c_src/math.c | |
parent | 492c9ec58cb906c36d11a2664002e616a142ca06 (diff) | |
download | otp-121efebb92f81ac4136c63de79fa88b2b6cedfa2.tar.gz otp-121efebb92f81ac4136c63de79fa88b2b6cedfa2.tar.bz2 otp-121efebb92f81ac4136c63de79fa88b2b6cedfa2.zip |
Move xor functionality to a new file
Diffstat (limited to 'lib/crypto/c_src/math.c')
-rw-r--r-- | lib/crypto/c_src/math.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/crypto/c_src/math.c b/lib/crypto/c_src/math.c new file mode 100644 index 0000000000..ae0de56720 --- /dev/null +++ b/lib/crypto/c_src/math.c @@ -0,0 +1,23 @@ +#include "math.h" + +ERL_NIF_TERM do_exor(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) +{/* (Data1, Data2) */ + ErlNifBinary d1, d2; + unsigned char* ret_ptr; + int i; + ERL_NIF_TERM ret; + + if (!enif_inspect_iolist_as_binary(env,argv[0], &d1) + || !enif_inspect_iolist_as_binary(env,argv[1], &d2) + || d1.size != d2.size) { + return enif_make_badarg(env); + } + ret_ptr = enif_make_new_binary(env, d1.size, &ret); + + for (i=0; i<d1.size; i++) { + ret_ptr[i] = d1.data[i] ^ d2.data[i]; + } + CONSUME_REDS(env,d1); + return ret; +} + |