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Merge branch 'pr/crc32-declaration-block-beginning' into develop

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This closes #155
This commit is contained in:
Steffen Jaeckel 2017-03-01 15:03:16 +01:00
commit d4cc79011b
1 changed files with 10 additions and 5 deletions
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15
src/misc/crc32.c
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@ -149,9 +149,10 @@ void crc32_init(crc32_state *ctx)
void crc32_update(crc32_state *ctx, const unsigned char *input, unsigned long length)
{
ulong32 crc;
LTC_ARGCHKVD(ctx != NULL);
LTC_ARGCHKVD(input != NULL);
ulong32 crc = ctx->crc;
crc = ctx->crc;
while (length--)
crc = crc32_m_tab[CRC32_INDEX(crc) ^ *input++] ^ CRC32_SHIFTED(crc);
@ -161,14 +162,18 @@ void crc32_update(crc32_state *ctx, const unsigned char *input, unsigned long le
void crc32_finish(crc32_state *ctx, void *hash, unsigned long size)
{
unsigned char* h;
unsigned long i;
ulong32 crc;
LTC_ARGCHKVD(ctx != NULL);
LTC_ARGCHKVD(hash != NULL);
unsigned char* h = hash;
unsigned long i;
ulong32 crc = ctx->crc;
h = hash;
crc = ctx->crc;
crc ^= _CRC32_NEGL;
if (size > 4) size = 4;
for (i = 0; i < size; i++) {
h[i] = ((unsigned char*)&(crc))[i];
}