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ssl: use malloc instead of alloca

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This commit is contained in:
Ivan Grokhotkov
2016-08-25 12:46:51 +08:00
parent a682206523
commit f3e154b870
1 changed files with 3 additions and 1 deletions
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4
ssl/tls1.c
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@ -661,7 +661,7 @@ static void add_hmac_digest(SSL *ssl, int mode, uint8_t *hmac_header,
const uint8_t *buf, int buf_len, uint8_t *hmac_buf) const uint8_t *buf, int buf_len, uint8_t *hmac_buf)
{ {
int hmac_len = buf_len + 8 + SSL_RECORD_SIZE; int hmac_len = buf_len + 8 + SSL_RECORD_SIZE;
uint8_t *t_buf = (uint8_t *)alloca(buf_len+100); uint8_t *t_buf = (uint8_t *)malloc(buf_len+100);
memcpy(t_buf, (mode == SSL_SERVER_WRITE || mode == SSL_CLIENT_WRITE) ? memcpy(t_buf, (mode == SSL_SERVER_WRITE || mode == SSL_CLIENT_WRITE) ?
ssl->write_sequence : ssl->read_sequence, 8); ssl->write_sequence : ssl->read_sequence, 8);
@ -673,6 +673,8 @@ static void add_hmac_digest(SSL *ssl, int mode, uint8_t *hmac_header,
ssl->server_mac : ssl->client_mac, ssl->server_mac : ssl->client_mac,
ssl->cipher_info->digest_size, hmac_buf); ssl->cipher_info->digest_size, hmac_buf);
free(t_buf);
#if 0 #if 0
print_blob("record", hmac_header, SSL_RECORD_SIZE); print_blob("record", hmac_header, SSL_RECORD_SIZE);
print_blob("buf", buf, buf_len); print_blob("buf", buf, buf_len);