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Fix potential bugs found with static analysis

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This commit is contained in:
vit9696 2019-03-26 14:22:51 +03:00
parent 2cbd78fb9e
commit 5edd5c10ee
4 changed files with 16 additions and 10 deletions
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9
common/sha256.c
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@ -90,7 +90,7 @@ static const unsigned long K[64] = {
#define MIN(x, y) (((x) < (y)) ? (x) : (y))
#endif
/* compress 512-bits */
static int sha256_compress(struct sha256_state *md, unsigned char *buf)
static void sha256_compress(struct sha256_state *md, unsigned char *buf)
{
uint32_t S[8], W[64], t0, t1;
uint32_t t;
@ -122,7 +122,6 @@ h = t0 + t1;
for (i = 0; i < 8; i++) {
md->state[i] = md->state[i] + S[i];
}
return 0;
}
/* Initialize the hash state */
void sha256_init(struct sha256_state *md)
@ -154,8 +153,7 @@ int sha256_process(struct sha256_state *md, const unsigned char *in,
return -1;
while (inlen > 0) {
if (md->curlen == 0 && inlen >= block_size) {
if (sha256_compress(md, (unsigned char *) in) < 0)
return -1;
sha256_compress(md, (unsigned char *) in);
md->length += block_size * 8;
in += block_size;
inlen -= block_size;
@ -166,8 +164,7 @@ int sha256_process(struct sha256_state *md, const unsigned char *in,
in += n;
inlen -= n;
if (md->curlen == block_size) {
if (sha256_compress(md, md->buf) < 0)
return -1;
sha256_compress(md, md->buf);
md->length += 8 * block_size;
md->curlen = 0;
}