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sha1: MSVC is braindead, so help it out a little.

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This commit is contained in:
Tyler J. Stachecki 2016-06-26 15:45:04 -04:00
parent 322ac0c934
commit ed08c028e5
1 changed files with 7 additions and 13 deletions
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20
device/sha1.c
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@ -48,7 +48,7 @@
/* XXX: hacky */
#ifdef _WIN32
#define BYTE_ORDER LITTLE_ENDIAN
#define BYTE_ORDER_IS_LITTLE_ENDIAN
static inline bcopy(const uint8_t *src, uint8_t *dest, size_t len) {
size_t i;
@ -56,17 +56,12 @@ static inline bcopy(const uint8_t *src, uint8_t *dest, size_t len) {
for (i = 0; i < len; i++)
dest[i] = src[i];
}
#else
#if BYTE_ORDER == LITTLE_ENDIAN
#define BYTE_ORDER_IS_LITTLE_ENDIAN
#endif
/* sanity check */
#if BYTE_ORDER != BIG_ENDIAN
# if BYTE_ORDER != LITTLE_ENDIAN
# define unsupported 1
# endif
#endif
#ifndef unsupported
/* constant table */
static uint32_t _K[] = { 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6 };
#define K(t) _K[(t) / 20]
@ -110,7 +105,7 @@ sha1_step(ctxt)
size_t t, s;
uint32_t tmp;
#if BYTE_ORDER == LITTLE_ENDIAN
#ifdef BYTE_ORDER_IS_LITTLE_ENDIAN
struct sha1_ctxt tctxt;
bcopy(&ctxt->m.b8[0], &tctxt.m.b8[0], 64);
ctxt->m.b8[0] = tctxt.m.b8[3]; ctxt->m.b8[1] = tctxt.m.b8[2];
@ -221,7 +216,7 @@ sha1_pad(ctxt)
memset(&ctxt->m.b8[padstart], 0, padlen - 8);
COUNT += (padlen - 8);
COUNT %= 64;
#if BYTE_ORDER == BIG_ENDIAN
#ifndef BYTE_ORDER_IS_LITTLE_ENDIAN
PUTPAD(ctxt->c.b8[0]); PUTPAD(ctxt->c.b8[1]);
PUTPAD(ctxt->c.b8[2]); PUTPAD(ctxt->c.b8[3]);
PUTPAD(ctxt->c.b8[4]); PUTPAD(ctxt->c.b8[5]);
@ -268,7 +263,7 @@ sha1_result(ctxt, digest)
uint8_t *digest;
{
sha1_pad(ctxt);
#if BYTE_ORDER == BIG_ENDIAN
#ifndef BYTE_ORDER_IS_LITTLE_ENDIAN
bcopy(&ctxt->h.b8[0], digest, 20);
#else
digest[0] = ctxt->h.b8[3]; digest[1] = ctxt->h.b8[2];
@ -295,4 +290,3 @@ extern void sha1(data, size, digest)
sha1_result(&ctx, digest);
}
#endif /*unsupported*/