AuroraMiddleware/zstd
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

added error checking for dictionary initialized with null src

Browse Source
This commit is contained in:
Paul Cruz 2017-08-14 09:41:04 -07:00
parent 7ef9c6f4b2
commit 38f4e43381
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
doc/educational_decoder/zstd_decompress.c
View File

@ -1404,6 +1404,7 @@ size_t ZSTD_get_decompressed_size(const void *src, const size_t src_len) {
/******* DICTIONARY PARSING ***************************************************/ /******* DICTIONARY PARSING ***************************************************/
#define DICT_SIZE_ERROR() ERROR("Dictionary size cannot be less than 8 bytes") #define DICT_SIZE_ERROR() ERROR("Dictionary size cannot be less than 8 bytes")
#define NULL_SRC() ERROR("Tried to create dictionary with pointer to null src");
dictionary_t* create_dictionary() { dictionary_t* create_dictionary() {
dictionary_t* dict = calloc(1, sizeof(dictionary_t)); dictionary_t* dict = calloc(1, sizeof(dictionary_t));
@ -1420,6 +1421,9 @@ void parse_dictionary(dictionary_t *const dict, const void *src,
size_t src_len) { size_t src_len) {
const u8 *byte_src = (const u8 *)src; const u8 *byte_src = (const u8 *)src;
memset(dict, 0, sizeof(dictionary_t)); memset(dict, 0, sizeof(dictionary_t));
if (src == NULL) { /* cannot initialize dictionary with null src */
NULL_SRC();
}
if (src_len < 8) { if (src_len < 8) {
DICT_SIZE_ERROR(); DICT_SIZE_ERROR();
} }