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noodle: Use a sane temp buf for streaming

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Matthew Barr
2017-05-30 16:12:41 +10:00
parent bf3ced92f4
commit 4be7d6fecc
4 changed files with 7 additions and 10 deletions
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7
src/hwlm/noodle_engine.c
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@@ -370,8 +370,7 @@ hwlm_error_t noodExec(const struct noodTable *n, const u8 *buf, size_t len,
/** \brief Streaming-mode scanner. */
hwlm_error_t noodExecStreaming(const struct noodTable *n, const u8 *hbuf,
size_t hlen, const u8 *buf, size_t len,
HWLMCallback cb, void *ctxt, u8 *temp_buf,
UNUSED size_t temp_buffer_size) {
HWLMCallback cb, void *ctxt) {
assert(n);
struct cb_info cbi = {cb, n->id, ctxt, 0};
@@ -380,10 +379,12 @@ hwlm_error_t noodExecStreaming(const struct noodTable *n, const u8 *hbuf,
if (hlen) {
assert(hbuf);
u8 ALIGN_DIRECTIVE temp_buf[16]; // HWLM_LITERAL_MAX_LEN * 2
size_t tl1 = MIN(n->len - 1, hlen);
size_t tl2 = MIN(n->len - 1, len);
size_t temp_len = tl1 + tl2;
assert(temp_len < temp_buffer_size);
assert(temp_len < sizeof(temp_buf));
memcpy(temp_buf, hbuf + hlen - tl1, tl1);
memcpy(temp_buf + tl1, buf, tl2);