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-rw-r--r--applypatch/applypatch.cpp45
-rw-r--r--applypatch/bspatch.cpp14
-rw-r--r--applypatch/imgpatch.cpp26
-rw-r--r--applypatch/include/applypatch/applypatch.h19
-rw-r--r--applypatch/include/applypatch/imgpatch.h9
5 files changed, 52 insertions, 61 deletions
diff --git a/applypatch/applypatch.cpp b/applypatch/applypatch.cpp
index 7be3fdbde..51bf3932a 100644
--- a/applypatch/applypatch.cpp
+++ b/applypatch/applypatch.cpp
@@ -27,6 +27,7 @@
#include <sys/types.h>
#include <unistd.h>
+#include <functional>
#include <memory>
#include <string>
#include <utility>
@@ -42,7 +43,7 @@
#include "print_sha1.h"
static int LoadPartitionContents(const std::string& filename, FileContents* file);
-static ssize_t FileSink(const unsigned char* data, ssize_t len, void* token);
+static size_t FileSink(const unsigned char* data, size_t len, int fd);
static int GenerateTarget(const FileContents& source_file, const std::unique_ptr<Value>& patch,
const std::string& target_filename,
const uint8_t target_sha1[SHA_DIGEST_LENGTH], const Value* bonus_data);
@@ -194,8 +195,8 @@ int SaveFileContents(const char* filename, const FileContents* file) {
return -1;
}
- ssize_t bytes_written = FileSink(file->data.data(), file->data.size(), &fd);
- if (bytes_written != static_cast<ssize_t>(file->data.size())) {
+ size_t bytes_written = FileSink(file->data.data(), file->data.size(), fd);
+ if (bytes_written != file->data.size()) {
printf("short write of \"%s\" (%zd bytes of %zu): %s\n", filename, bytes_written,
file->data.size(), strerror(errno));
return -1;
@@ -433,25 +434,17 @@ int ShowLicenses() {
return 0;
}
-ssize_t FileSink(const unsigned char* data, ssize_t len, void* token) {
- int fd = *static_cast<int*>(token);
- ssize_t done = 0;
- ssize_t wrote;
- while (done < len) {
- wrote = TEMP_FAILURE_RETRY(ota_write(fd, data+done, len-done));
- if (wrote == -1) {
- printf("error writing %zd bytes: %s\n", (len-done), strerror(errno));
- return done;
- }
- done += wrote;
+static size_t FileSink(const unsigned char* data, size_t len, int fd) {
+ size_t done = 0;
+ while (done < len) {
+ ssize_t wrote = TEMP_FAILURE_RETRY(ota_write(fd, data + done, len - done));
+ if (wrote == -1) {
+ printf("error writing %zd bytes: %s\n", (len - done), strerror(errno));
+ return done;
}
- return done;
-}
-
-ssize_t MemorySink(const unsigned char* data, ssize_t len, void* token) {
- std::string* s = static_cast<std::string*>(token);
- s->append(reinterpret_cast<const char*>(data), len);
- return len;
+ done += wrote;
+ }
+ return done;
}
// Return the amount of free space (in bytes) on the filesystem
@@ -647,9 +640,11 @@ static int GenerateTarget(const FileContents& source_file, const std::unique_ptr
}
// We store the decoded output in memory.
- SinkFn sink = MemorySink;
std::string memory_sink_str; // Don't need to reserve space.
- void* token = &memory_sink_str;
+ SinkFn sink = [&memory_sink_str](const unsigned char* data, size_t len) {
+ memory_sink_str.append(reinterpret_cast<const char*>(data), len);
+ return len;
+ };
SHA_CTX ctx;
SHA1_Init(&ctx);
@@ -657,10 +652,10 @@ static int GenerateTarget(const FileContents& source_file, const std::unique_ptr
int result;
if (use_bsdiff) {
result = ApplyBSDiffPatch(source_file.data.data(), source_file.data.size(), patch.get(), 0,
- sink, token, &ctx);
+ sink, &ctx);
} else {
result = ApplyImagePatch(source_file.data.data(), source_file.data.size(), patch.get(), sink,
- token, &ctx, bonus_data);
+ &ctx, bonus_data);
}
if (result != 0) {
diff --git a/applypatch/bspatch.cpp b/applypatch/bspatch.cpp
index 9920c2be1..f75a2c680 100644
--- a/applypatch/bspatch.cpp
+++ b/applypatch/bspatch.cpp
@@ -24,9 +24,9 @@
#include <sys/types.h>
#include <bspatch.h>
+#include <openssl/sha.h>
#include "applypatch/applypatch.h"
-#include "openssl/sha.h"
void ShowBSDiffLicense() {
puts("The bsdiff library used herein is:\n"
@@ -60,10 +60,10 @@ void ShowBSDiffLicense() {
);
}
-int ApplyBSDiffPatch(const unsigned char* old_data, ssize_t old_size, const Value* patch,
- ssize_t patch_offset, SinkFn sink, void* token, SHA_CTX* ctx) {
- auto sha_sink = [&](const uint8_t* data, size_t len) {
- len = sink(data, len, token);
+int ApplyBSDiffPatch(const unsigned char* old_data, size_t old_size, const Value* patch,
+ size_t patch_offset, SinkFn sink, SHA_CTX* ctx) {
+ auto sha_sink = [&sink, &ctx](const uint8_t* data, size_t len) {
+ len = sink(data, len);
if (ctx) SHA1_Update(ctx, data, len);
return len;
};
@@ -72,8 +72,8 @@ int ApplyBSDiffPatch(const unsigned char* old_data, ssize_t old_size, const Valu
patch->data.size(), sha_sink);
}
-int ApplyBSDiffPatchMem(const unsigned char* old_data, ssize_t old_size, const Value* patch,
- ssize_t patch_offset, std::vector<unsigned char>* new_data) {
+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;
diff --git a/applypatch/imgpatch.cpp b/applypatch/imgpatch.cpp
index adcc61fd6..7d8b7361c 100644
--- a/applypatch/imgpatch.cpp
+++ b/applypatch/imgpatch.cpp
@@ -43,12 +43,11 @@ static inline int32_t Read4(const void *address) {
return android::base::get_unaligned<int32_t>(address);
}
-int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size,
- const unsigned char* patch_data, ssize_t patch_size,
- SinkFn sink, void* token) {
+int ApplyImagePatch(const unsigned char* old_data, size_t old_size, const unsigned char* patch_data,
+ size_t patch_size, SinkFn sink) {
Value patch(VAL_BLOB, std::string(reinterpret_cast<const char*>(patch_data), patch_size));
- return ApplyImagePatch(old_data, old_size, &patch, sink, token, nullptr, nullptr);
+ return ApplyImagePatch(old_data, old_size, &patch, sink, nullptr, nullptr);
}
/*
@@ -57,8 +56,8 @@ int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size,
* file, and update the SHA context with the output data as well.
* Return 0 on success.
*/
-int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size, const Value* patch,
- SinkFn sink, void* token, SHA_CTX* ctx, const Value* bonus_data) {
+int ApplyImagePatch(const unsigned char* old_data, size_t old_size, const Value* patch, SinkFn sink,
+ SHA_CTX* ctx, const Value* bonus_data) {
if (patch->data.size() < 12) {
printf("patch too short to contain header\n");
return -1;
@@ -97,11 +96,11 @@ int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size, const Value
size_t src_len = static_cast<size_t>(Read8(normal_header + 8));
size_t patch_offset = static_cast<size_t>(Read8(normal_header + 16));
- if (src_start + src_len > static_cast<size_t>(old_size)) {
+ if (src_start + src_len > old_size) {
printf("source data too short\n");
return -1;
}
- ApplyBSDiffPatch(old_data + src_start, src_len, patch, patch_offset, sink, token, ctx);
+ ApplyBSDiffPatch(old_data + src_start, src_len, patch, patch_offset, sink, ctx);
} else if (type == CHUNK_RAW) {
const char* raw_header = &patch->data[pos];
pos += 4;
@@ -110,15 +109,14 @@ int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size, const Value
return -1;
}
- ssize_t data_len = Read4(raw_header);
+ size_t data_len = static_cast<size_t>(Read4(raw_header));
if (pos + data_len > patch->data.size()) {
printf("failed to read chunk %d raw data\n", i);
return -1;
}
if (ctx) SHA1_Update(ctx, &patch->data[pos], data_len);
- if (sink(reinterpret_cast<const unsigned char*>(&patch->data[pos]), data_len, token) !=
- data_len) {
+ if (sink(reinterpret_cast<const unsigned char*>(&patch->data[pos]), data_len) != data_len) {
printf("failed to write chunk %d raw data\n", i);
return -1;
}
@@ -143,7 +141,7 @@ int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size, const Value
int memLevel = Read4(deflate_header + 52);
int strategy = Read4(deflate_header + 56);
- if (src_start + src_len > static_cast<size_t>(old_size)) {
+ if (src_start + src_len > old_size) {
printf("source data too short\n");
return -1;
}
@@ -240,9 +238,9 @@ int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size, const Value
strm.avail_out = temp_data.size();
strm.next_out = temp_data.data();
ret = deflate(&strm, Z_FINISH);
- ssize_t have = temp_data.size() - strm.avail_out;
+ size_t have = temp_data.size() - strm.avail_out;
- if (sink(temp_data.data(), have, token) != have) {
+ if (sink(temp_data.data(), have) != have) {
printf("failed to write %zd compressed bytes to output\n", have);
return -1;
}
diff --git a/applypatch/include/applypatch/applypatch.h b/applypatch/include/applypatch/applypatch.h
index 4489decb6..da55432d5 100644
--- a/applypatch/include/applypatch/applypatch.h
+++ b/applypatch/include/applypatch/applypatch.h
@@ -20,6 +20,7 @@
#include <stdint.h>
#include <sys/stat.h>
+#include <functional>
#include <memory>
#include <string>
#include <vector>
@@ -41,7 +42,7 @@ struct FileContents {
// and use it as the source instead.
#define CACHE_TEMP_SOURCE "/cache/saved.file"
-typedef ssize_t (*SinkFn)(const unsigned char*, ssize_t, void*);
+using SinkFn = std::function<size_t(const unsigned char*, size_t)>;
// applypatch.cpp
int ShowLicenses();
@@ -66,18 +67,14 @@ int SaveFileContents(const char* filename, const FileContents* file);
// bspatch.cpp
void ShowBSDiffLicense();
-int ApplyBSDiffPatch(const unsigned char* old_data, ssize_t old_size,
- const Value* patch, ssize_t patch_offset,
- SinkFn sink, void* token, SHA_CTX* ctx);
-int ApplyBSDiffPatchMem(const unsigned char* old_data, ssize_t old_size,
- const Value* patch, ssize_t patch_offset,
- std::vector<unsigned char>* new_data);
+int ApplyBSDiffPatch(const unsigned char* old_data, size_t old_size, const Value* patch,
+ size_t patch_offset, SinkFn sink, SHA_CTX* ctx);
+int ApplyBSDiffPatchMem(const unsigned char* old_data, size_t old_size, const Value* patch,
+ size_t patch_offset, std::vector<unsigned char>* new_data);
// imgpatch.cpp
-int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size,
- const Value* patch,
- SinkFn sink, void* token, SHA_CTX* ctx,
- const Value* bonus_data);
+int ApplyImagePatch(const unsigned char* old_data, size_t old_size, const Value* patch, SinkFn sink,
+ SHA_CTX* ctx, const Value* bonus_data);
// freecache.cpp
int MakeFreeSpaceOnCache(size_t bytes_needed);
diff --git a/applypatch/include/applypatch/imgpatch.h b/applypatch/include/applypatch/imgpatch.h
index 6549f79f0..07c66094f 100644
--- a/applypatch/include/applypatch/imgpatch.h
+++ b/applypatch/include/applypatch/imgpatch.h
@@ -19,10 +19,11 @@
#include <sys/types.h>
-using SinkFn = ssize_t (*)(const unsigned char*, ssize_t, void*);
+#include <functional>
-int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size,
- const unsigned char* patch_data, ssize_t patch_size,
- SinkFn sink, void* token);
+using SinkFn = std::function<size_t(const unsigned char*, size_t)>;
+
+int ApplyImagePatch(const unsigned char* old_data, size_t old_size, const unsigned char* patch_data,
+ size_t patch_size, SinkFn sink);
#endif // _APPLYPATCH_IMGPATCH_H
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 23:15:27 +0100