diff options
Diffstat (limited to 'applypatch/bspatch.cpp')
| -rw-r--r-- | applypatch/bspatch.cpp | 38 |
1 files changed, 24 insertions, 14 deletions
diff --git a/applypatch/bspatch.cpp b/applypatch/bspatch.cpp index f75a2c680..65ee614ef 100644 --- a/applypatch/bspatch.cpp +++ b/applypatch/bspatch.cpp @@ -23,10 +23,14 @@ #include <stdio.h> #include <sys/types.h> +#include <string> + +#include <android-base/logging.h> #include <bspatch.h> #include <openssl/sha.h> #include "applypatch/applypatch.h" +#include "print_sha1.h" void ShowBSDiffLicense() { puts("The bsdiff library used herein is:\n" @@ -67,18 +71,24 @@ int ApplyBSDiffPatch(const unsigned char* old_data, size_t old_size, const Value if (ctx) SHA1_Update(ctx, data, len); return len; }; - return bsdiff::bspatch(old_data, old_size, - reinterpret_cast<const uint8_t*>(&patch->data[patch_offset]), - patch->data.size(), sha_sink); -} -int ApplyBSDiffPatchMem(const unsigned char* old_data, size_t old_size, const Value* patch, - size_t patch_offset, std::vector<unsigned char>* new_data) { - auto vector_sink = [new_data](const uint8_t* data, size_t len) { - new_data->insert(new_data->end(), data, data + len); - return len; - }; - return bsdiff::bspatch(old_data, old_size, - reinterpret_cast<const uint8_t*>(&patch->data[patch_offset]), - patch->data.size(), vector_sink); -} + CHECK(patch != nullptr); + CHECK_LE(patch_offset, patch->data.size()); + + int result = bsdiff::bspatch(old_data, old_size, + reinterpret_cast<const uint8_t*>(&patch->data[patch_offset]), + patch->data.size() - patch_offset, sha_sink); + if (result != 0) { + LOG(ERROR) << "bspatch failed, result: " << result; + // print SHA1 of the patch in the case of a data error. + if (result == 2) { + uint8_t digest[SHA_DIGEST_LENGTH]; + SHA1(reinterpret_cast<const uint8_t*>(patch->data.data() + patch_offset), + patch->data.size() - patch_offset, digest); + std::string patch_sha1 = print_sha1(digest); + LOG(ERROR) << "Patch may be corrupted, offset: " << patch_offset << ", SHA1: " + << patch_sha1; + } + } + return result; +}
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