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add ABI compatibility check

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minor revision shouldn't matter, we only check major revision number.
Bumped all version numbers so that incompatibility starts *now*

Change-Id: Id06c20f03039845ae4cfb3fd121807b931d67ee4
This commit is contained in:
Pascal Massimino
2012-07-18 11:53:25 -07:00
parent 2a77557002
commit f7f16a2976
9 changed files with 30 additions and 21 deletions
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2
src/mux/demux.c
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@ -631,7 +631,7 @@ WebPDemuxer* WebPDemuxInternal(const WebPData* data, int allow_partial,
MemBuffer mem;
WebPDemuxer* dmux;
if (version != WEBP_DEMUX_ABI_VERSION) return NULL;
if (WEBP_ABI_IS_INCOMPATIBLE(version, WEBP_DEMUX_ABI_VERSION)) return NULL;
if (data == NULL || data->bytes_ == NULL || data->size_ == 0) return NULL;
if (!InitMemBuffer(&mem, data->bytes_, data->size_)) return NULL;

13
src/mux/muxedit.c
View File

@ -35,11 +35,14 @@ static void MuxInit(WebPMux* const mux) {
}
WebPMux* WebPNewInternal(int version) {
WebPMux* const mux = (version == WEBP_MUX_ABI_VERSION) ?
(WebPMux*)malloc(sizeof(WebPMux)) : NULL;
// If mux is NULL MuxInit is a noop.
MuxInit(mux);
return mux;
if (WEBP_ABI_IS_INCOMPATIBLE(version, WEBP_MUX_ABI_VERSION)) {
return NULL;
} else {
WebPMux* const mux = (WebPMux*)malloc(sizeof(WebPMux));
// If mux is NULL MuxInit is a noop.
MuxInit(mux);
return mux;
}
}
static void DeleteAllChunks(WebPChunk** const chunk_list) {

4
src/mux/muxread.c
View File

@ -89,7 +89,9 @@ WebPMux* WebPMuxCreateInternal(const WebPData* bitstream, int copy_data,
ChunkInit(&chunk);
// Sanity checks.
if (version != WEBP_MUX_ABI_VERSION) return NULL; // version mismatch
if (WEBP_ABI_IS_INCOMPATIBLE(version, WEBP_MUX_ABI_VERSION)) {
return NULL; // version mismatch
}
if (bitstream == NULL) return NULL;
data = bitstream->bytes_;