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Use one size for scratchbuf as a macro in scrypt.c

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This commit is contained in:
Con Kolivas 2012-12-24 14:07:05 +11:00
parent 93e3c16aa8
commit 61e86bb842
1 changed files with 6 additions and 4 deletions
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10
scrypt.c
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@ -402,6 +402,9 @@ static void scrypt_1024_1_1_256_sp(const uint32_t* input, char* scratchpad, uint
PBKDF2_SHA256_80_128_32(input, X, ostate); PBKDF2_SHA256_80_128_32(input, X, ostate);
} }
/* 131583 rounded up to 4 byte alignment */
#define SCRATCHBUF_SIZE (131584)
void scrypt_outputhash(struct work *work) void scrypt_outputhash(struct work *work)
{ {
uint32_t data[20], ohash[8], rhash[8]; uint32_t data[20], ohash[8], rhash[8];
@ -410,7 +413,7 @@ void scrypt_outputhash(struct work *work)
be32enc_vect(data, (const uint32_t *)work->data, 19); be32enc_vect(data, (const uint32_t *)work->data, 19);
data[19] = htobe32(*nonce); data[19] = htobe32(*nonce);
scratchbuf = alloca(131584); scratchbuf = alloca(SCRATCHBUF_SIZE);
scrypt_1024_1_1_256_sp(data, scratchbuf, ohash); scrypt_1024_1_1_256_sp(data, scratchbuf, ohash);
swap256(rhash, ohash); swap256(rhash, ohash);
work->outputhash = be64toh(*((uint64_t *)rhash)); work->outputhash = be64toh(*((uint64_t *)rhash));
@ -425,7 +428,7 @@ bool scrypt_test(unsigned char *pdata, const unsigned char *ptarget, uint32_t no
be32enc_vect(data, (const uint32_t *)pdata, 19); be32enc_vect(data, (const uint32_t *)pdata, 19);
data[19] = htobe32(nonce); data[19] = htobe32(nonce);
scratchbuf = alloca(131584); scratchbuf = alloca(SCRATCHBUF_SIZE);
scrypt_1024_1_1_256_sp(data, scratchbuf, ohash); scrypt_1024_1_1_256_sp(data, scratchbuf, ohash);
tmp_hash7 = be32toh(ohash[7]); tmp_hash7 = be32toh(ohash[7]);
@ -446,7 +449,7 @@ bool scanhash_scrypt(struct thr_info *thr, const unsigned char __maybe_unused *p
be32enc_vect(data, (const uint32_t *)pdata, 19); be32enc_vect(data, (const uint32_t *)pdata, 19);
scratchbuf = malloc(131583); scratchbuf = malloc(SCRATCHBUF_SIZE);
if (unlikely(!scratchbuf)) { if (unlikely(!scratchbuf)) {
applog(LOG_ERR, "Failed to malloc scratchbuf in scanhash_scrypt"); applog(LOG_ERR, "Failed to malloc scratchbuf in scanhash_scrypt");
return ret; return ret;
@ -476,4 +479,3 @@ bool scanhash_scrypt(struct thr_info *thr, const unsigned char __maybe_unused *p
free(scratchbuf);; free(scratchbuf);;
return ret; return ret;
} }