applypatch: use vector to store data in FileContents.
Bug: 26906416
Change-Id: Ib53b445cd415a1ed5e95733fbc4073f9ef4dbc43
diff --git a/applypatch/main.cpp b/applypatch/main.cpp
index 7606d5d..9013760 100644
--- a/applypatch/main.cpp
+++ b/applypatch/main.cpp
@@ -46,40 +46,32 @@
return CacheSizeCheck(bytes);
}
-// Parse arguments (which should be of the form "<sha1>" or
-// "<sha1>:<filename>" into the new parallel arrays *sha1s and
-// *patches (loading file contents into the patches). Returns true on
+// Parse arguments (which should be of the form "<sha1>:<filename>"
+// into the new parallel arrays *sha1s and *files.Returns true on
// success.
static bool ParsePatchArgs(int argc, char** argv, std::vector<char*>* sha1s,
- std::vector<std::unique_ptr<Value, decltype(&FreeValue)>>* patches) {
+ std::vector<FileContents>* files) {
uint8_t digest[SHA_DIGEST_LENGTH];
for (int i = 0; i < argc; ++i) {
char* colon = strchr(argv[i], ':');
- if (colon != NULL) {
- *colon = '\0';
- ++colon;
+ if (colon == nullptr) {
+ printf("no ':' in patch argument \"%s\"\n", argv[i]);
+ return false;
}
-
+ *colon = '\0';
+ ++colon;
if (ParseSha1(argv[i], digest) != 0) {
printf("failed to parse sha1 \"%s\"\n", argv[i]);
return false;
}
sha1s->push_back(argv[i]);
- if (colon == NULL) {
- patches->emplace_back(nullptr, FreeValue);
- } else {
- FileContents fc;
- if (LoadFileContents(colon, &fc) != 0) {
- return false;
- }
- std::unique_ptr<Value, decltype(&FreeValue)> value(new Value, FreeValue);
- value->type = VAL_BLOB;
- value->size = fc.size;
- value->data = reinterpret_cast<char*>(fc.data);
- patches->push_back(std::move(value));
+ FileContents fc;
+ if (LoadFileContents(colon, &fc) != 0) {
+ return false;
}
+ files->push_back(std::move(fc));
}
return true;
}
@@ -90,17 +82,19 @@
}
static int PatchMode(int argc, char** argv) {
- std::unique_ptr<Value, decltype(&FreeValue)> bonus(nullptr, FreeValue);
+ FileContents bonusFc;
+ Value bonusValue;
+ Value* bonus = nullptr;
+
if (argc >= 3 && strcmp(argv[1], "-b") == 0) {
- FileContents fc;
- if (LoadFileContents(argv[2], &fc) != 0) {
+ if (LoadFileContents(argv[2], &bonusFc) != 0) {
printf("failed to load bonus file %s\n", argv[2]);
return 1;
}
- bonus.reset(new Value);
+ bonus = &bonusValue;
bonus->type = VAL_BLOB;
- bonus->size = fc.size;
- bonus->data = reinterpret_cast<char*>(fc.data);
+ bonus->size = bonusFc.data.size();
+ bonus->data = reinterpret_cast<char*>(bonusFc.data.data());
argc -= 2;
argv += 2;
}
@@ -118,28 +112,29 @@
// If no <src-sha1>:<patch> is provided, it is in flash mode.
if (argc == 5) {
- if (bonus != NULL) {
+ if (bonus != nullptr) {
printf("bonus file not supported in flash mode\n");
return 1;
}
return FlashMode(argv[1], argv[2], argv[3], target_size);
}
-
-
std::vector<char*> sha1s;
- std::vector<std::unique_ptr<Value, decltype(&FreeValue)>> patches;
- if (!ParsePatchArgs(argc-5, argv+5, &sha1s, &patches)) {
+ std::vector<FileContents> files;
+ if (!ParsePatchArgs(argc-5, argv+5, &sha1s, &files)) {
printf("failed to parse patch args\n");
return 1;
}
-
- std::vector<Value*> patch_ptrs;
- for (const auto& p : patches) {
- patch_ptrs.push_back(p.get());
+ std::vector<Value> patches(files.size());
+ std::vector<Value*> patch_ptrs(files.size());
+ for (size_t i = 0; i < files.size(); ++i) {
+ patches[i].type = VAL_BLOB;
+ patches[i].size = files[i].data.size();
+ patches[i].data = reinterpret_cast<char*>(files[i].data.data());
+ patch_ptrs[i] = &patches[i];
}
return applypatch(argv[1], argv[2], argv[3], target_size,
patch_ptrs.size(), sha1s.data(),
- patch_ptrs.data(), bonus.get());
+ patch_ptrs.data(), bonus);
}
// This program applies binary patches to files in a way that is safe