github_mirrors/vectorscan
3
0
Fork 1
mirror of https://github.com/VectorCamp/vectorscan.git synced 2025-09-29 19:24:25 +03:00
Code Issues Packages Projects Releases Wiki Activity

noodle: Use a sane temp buf for streaming

Browse Source
This commit is contained in:
Matthew Barr
2017-05-30 16:12:41 +10:00
parent bf3ced92f4
commit 4be7d6fecc
4 changed files with 7 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
src/hwlm/hwlm.c
View File

@@ -228,8 +228,7 @@ hwlm_error_t hwlmExecStreaming(const struct HWLM *t, struct hs_scratch *scratch,
cb, ctxt);
} else {
return noodExecStreaming(HWLM_C_DATA(t), hbuf, hlen, buf, len, cb,
ctxt, scratch->fdr_temp_buf,
FDR_TEMP_BUF_SIZE);
ctxt);
}
} else {
// t->type == HWLM_ENGINE_FDR

7
src/hwlm/noodle_engine.c
View File

@@ -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);

5
src/hwlm/noodle_engine.h
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2015, Intel Corporation
* Copyright (c) 2015-2017, Intel Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -49,8 +49,7 @@ 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,
size_t temp_buffer_size);
HWLMCallback cb, void *ctxt);
#ifdef __cplusplus
} /* extern "C" */