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-rw-r--r--applypatch/applypatch.cpp12
-rw-r--r--bootloader.h8
-rw-r--r--common.h8
-rw-r--r--edify/Android.mk8
-rw-r--r--minadbd/adb_main.cpp2
-rw-r--r--print_sha1.h43
-rw-r--r--recovery.cpp2
-rw-r--r--uncrypt/Android.mk2
-rw-r--r--uncrypt/uncrypt.cpp32
-rw-r--r--unique_fd.h73
-rw-r--r--updater/blockimg.cpp406
11 files changed, 294 insertions, 302 deletions
diff --git a/applypatch/applypatch.cpp b/applypatch/applypatch.cpp
index 751d3e392..1767761a8 100644
--- a/applypatch/applypatch.cpp
+++ b/applypatch/applypatch.cpp
@@ -31,6 +31,7 @@
#include "applypatch.h"
#include "mtdutils/mtdutils.h"
#include "edify/expr.h"
+#include "print_sha1.h"
static int LoadPartitionContents(const char* filename, FileContents* file);
static ssize_t FileSink(const unsigned char* data, ssize_t len, void* token);
@@ -43,7 +44,6 @@ static int GenerateTarget(FileContents* source_file,
const uint8_t target_sha1[SHA_DIGEST_SIZE],
size_t target_size,
const Value* bonus_data);
-static std::string short_sha1(const uint8_t sha1[SHA_DIGEST_SIZE]);
static bool mtd_partitions_scanned = false;
@@ -630,16 +630,6 @@ int CacheSizeCheck(size_t bytes) {
}
}
-static std::string short_sha1(const uint8_t sha1[SHA_DIGEST_SIZE]) {
- const char* hex = "0123456789abcdef";
- std::string result = "";
- for (size_t i = 0; i < 4; ++i) {
- result.push_back(hex[(sha1[i]>>4) & 0xf]);
- result.push_back(hex[sha1[i] & 0xf]);
- }
- return result;
-}
-
// This function applies binary patches to files in a way that is safe
// (the original file is not touched until we have the desired
// replacement for it) and idempotent (it's okay to run this program
diff --git a/bootloader.h b/bootloader.h
index c2895dd91..4e9fb0a0d 100644
--- a/bootloader.h
+++ b/bootloader.h
@@ -17,10 +17,6 @@
#ifndef _RECOVERY_BOOTLOADER_H
#define _RECOVERY_BOOTLOADER_H
-#ifdef __cplusplus
-extern "C" {
-#endif
-
/* Bootloader Message
*
* This structure describes the content of a block in flash
@@ -64,8 +60,4 @@ struct bootloader_message {
int get_bootloader_message(struct bootloader_message *out);
int set_bootloader_message(const struct bootloader_message *in);
-#ifdef __cplusplus
-}
-#endif
-
#endif
diff --git a/common.h b/common.h
index b818ceb84..de8b409fd 100644
--- a/common.h
+++ b/common.h
@@ -21,10 +21,6 @@
#include <stdio.h>
#include <stdarg.h>
-#ifdef __cplusplus
-extern "C" {
-#endif
-
#define LOGE(...) ui_print("E:" __VA_ARGS__)
#define LOGW(...) fprintf(stdout, "W:" __VA_ARGS__)
#define LOGI(...) fprintf(stdout, "I:" __VA_ARGS__)
@@ -50,8 +46,4 @@ void ui_print(const char* format, ...);
bool is_ro_debuggable();
-#ifdef __cplusplus
-}
-#endif
-
#endif // RECOVERY_COMMON_H
diff --git a/edify/Android.mk b/edify/Android.mk
index c36645045..eb366c287 100644
--- a/edify/Android.mk
+++ b/edify/Android.mk
@@ -21,10 +21,10 @@ LOCAL_SRC_FILES := \
$(edify_src_files) \
main.c
-LOCAL_CFLAGS := $(edify_cflags) -g -O0
+LOCAL_CPPFLAGS := $(edify_cflags) -g -O0
LOCAL_MODULE := edify
LOCAL_YACCFLAGS := -v
-LOCAL_CFLAGS += -Wno-unused-parameter
+LOCAL_CPPFLAGS += -Wno-unused-parameter
LOCAL_CLANG := true
include $(BUILD_HOST_EXECUTABLE)
@@ -36,8 +36,8 @@ include $(CLEAR_VARS)
LOCAL_SRC_FILES := $(edify_src_files)
-LOCAL_CFLAGS := $(edify_cflags)
-LOCAL_CFLAGS += -Wno-unused-parameter
+LOCAL_CPPFLAGS := $(edify_cflags)
+LOCAL_CPPFLAGS += -Wno-unused-parameter
LOCAL_MODULE := libedify
LOCAL_CLANG := true
diff --git a/minadbd/adb_main.cpp b/minadbd/adb_main.cpp
index 724f39c1d..514f19699 100644
--- a/minadbd/adb_main.cpp
+++ b/minadbd/adb_main.cpp
@@ -27,7 +27,7 @@
#include "adb_auth.h"
#include "transport.h"
-int adb_main(int is_daemon, int server_port) {
+int adb_main(int is_daemon, int server_port, int /* reply_fd */) {
adb_device_banner = "sideload";
signal(SIGPIPE, SIG_IGN);
diff --git a/print_sha1.h b/print_sha1.h
new file mode 100644
index 000000000..9e37c5fe3
--- /dev/null
+++ b/print_sha1.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef RECOVERY_PRINT_SHA1_H
+#define RECOVERY_PRINT_SHA1_H
+
+#include <stdint.h>
+#include <string>
+
+#include "mincrypt/sha.h"
+
+static std::string print_sha1(const uint8_t sha1[SHA_DIGEST_SIZE], size_t len) {
+ const char* hex = "0123456789abcdef";
+ std::string result = "";
+ for (size_t i = 0; i < len; ++i) {
+ result.push_back(hex[(sha1[i]>>4) & 0xf]);
+ result.push_back(hex[sha1[i] & 0xf]);
+ }
+ return result;
+}
+
+static std::string print_sha1(const uint8_t sha1[SHA_DIGEST_SIZE]) {
+ return print_sha1(sha1, SHA_DIGEST_SIZE);
+}
+
+static std::string short_sha1(const uint8_t sha1[SHA_DIGEST_SIZE]) {
+ return print_sha1(sha1, 4);
+}
+
+#endif // RECOVERY_PRINT_SHA1_H
diff --git a/recovery.cpp b/recovery.cpp
index d90e10a8b..c683bae1d 100644
--- a/recovery.cpp
+++ b/recovery.cpp
@@ -942,7 +942,7 @@ main(int argc, char **argv) {
// only way recovery should be run with this argument is when it
// starts a copy of itself from the apply_from_adb() function.
if (argc == 2 && strcmp(argv[1], "--adbd") == 0) {
- adb_main(0, DEFAULT_ADB_PORT);
+ adb_main(0, DEFAULT_ADB_PORT, -1);
return 0;
}
diff --git a/uncrypt/Android.mk b/uncrypt/Android.mk
index e73c8f1b6..f31db4243 100644
--- a/uncrypt/Android.mk
+++ b/uncrypt/Android.mk
@@ -20,6 +20,8 @@ LOCAL_CLANG := true
LOCAL_SRC_FILES := uncrypt.cpp
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/..
+
LOCAL_MODULE := uncrypt
LOCAL_STATIC_LIBRARIES := libbase liblog libfs_mgr libcutils
diff --git a/uncrypt/uncrypt.cpp b/uncrypt/uncrypt.cpp
index 8785b29af..aef480035 100644
--- a/uncrypt/uncrypt.cpp
+++ b/uncrypt/uncrypt.cpp
@@ -51,6 +51,8 @@
#include <sys/types.h>
#include <unistd.h>
+#include <memory>
+
#include <base/file.h>
#include <base/strings.h>
#include <cutils/android_reboot.h>
@@ -60,6 +62,8 @@
#define LOG_TAG "uncrypt"
#include <log/log.h>
+#include "unique_fd.h"
+
#define WINDOW_SIZE 5
static const std::string cache_block_map = "/cache/recovery/block.map";
@@ -183,6 +187,7 @@ static int produce_block_map(const char* path, const char* map_file, const char*
return -1;
}
FILE* mapf = fdopen(mapfd, "w");
+ unique_file mapf_holder(mapf);
// Make sure we can write to the status_file.
if (!android::base::WriteStringToFd("0\n", status_fd)) {
@@ -191,8 +196,7 @@ static int produce_block_map(const char* path, const char* map_file, const char*
}
struct stat sb;
- int ret = stat(path, &sb);
- if (ret != 0) {
+ if (stat(path, &sb) != 0) {
ALOGE("failed to stat %s\n", path);
return -1;
}
@@ -221,15 +225,18 @@ static int produce_block_map(const char* path, const char* map_file, const char*
size_t pos = 0;
int fd = open(path, O_RDONLY);
- if (fd < 0) {
+ unique_fd fd_holder(fd);
+ if (fd == -1) {
ALOGE("failed to open fd for reading: %s\n", strerror(errno));
return -1;
}
int wfd = -1;
+ unique_fd wfd_holder(wfd);
if (encrypted) {
wfd = open(blk_dev, O_WRONLY | O_SYNC);
- if (wfd < 0) {
+ wfd_holder = unique_fd(wfd);
+ if (wfd == -1) {
ALOGE("failed to open fd for writing: %s\n", strerror(errno));
return -1;
}
@@ -247,8 +254,7 @@ static int produce_block_map(const char* path, const char* map_file, const char*
if ((tail+1) % WINDOW_SIZE == head) {
// write out head buffer
int block = head_block;
- ret = ioctl(fd, FIBMAP, &block);
- if (ret != 0) {
+ if (ioctl(fd, FIBMAP, &block) != 0) {
ALOGE("failed to find block %d\n", head_block);
return -1;
}
@@ -288,8 +294,7 @@ static int produce_block_map(const char* path, const char* map_file, const char*
while (head != tail) {
// write out head buffer
int block = head_block;
- ret = ioctl(fd, FIBMAP, &block);
- if (ret != 0) {
+ if (ioctl(fd, FIBMAP, &block) != 0) {
ALOGE("failed to find block %d\n", head_block);
return -1;
}
@@ -313,14 +318,11 @@ static int produce_block_map(const char* path, const char* map_file, const char*
ALOGE("failed to fsync \"%s\": %s\n", map_file, strerror(errno));
return -1;
}
- fclose(mapf);
- close(fd);
if (encrypted) {
if (fsync(wfd) == -1) {
ALOGE("failed to fsync \"%s\": %s\n", blk_dev, strerror(errno));
return -1;
}
- close(wfd);
}
return 0;
@@ -333,6 +335,8 @@ static void wipe_misc() {
if (!v->mount_point) continue;
if (strcmp(v->mount_point, "/misc") == 0) {
int fd = open(v->blk_device, O_WRONLY | O_SYNC);
+ unique_fd fd_holder(fd);
+
uint8_t zeroes[1088]; // sizeof(bootloader_message) from recovery
memset(zeroes, 0, sizeof(zeroes));
@@ -349,10 +353,8 @@ static void wipe_misc() {
}
if (fsync(fd) == -1) {
ALOGE("failed to fsync \"%s\": %s\n", v->blk_device, strerror(errno));
- close(fd);
return;
}
- close(fd);
}
}
}
@@ -437,6 +439,7 @@ int main(int argc, char** argv) {
ALOGE("failed to open pipe \"%s\": %s\n", status_file.c_str(), strerror(errno));
return 1;
}
+ unique_fd status_fd_holder(status_fd);
if (argc == 3) {
// when command-line args are given this binary is being used
@@ -447,7 +450,6 @@ int main(int argc, char** argv) {
std::string package;
if (!find_uncrypt_package(package)) {
android::base::WriteStringToFd("-1\n", status_fd);
- close(status_fd);
return 1;
}
input_path = package.c_str();
@@ -457,12 +459,10 @@ int main(int argc, char** argv) {
int status = uncrypt(input_path, map_file, status_fd);
if (status != 0) {
android::base::WriteStringToFd("-1\n", status_fd);
- close(status_fd);
return 1;
}
android::base::WriteStringToFd("100\n", status_fd);
- close(status_fd);
}
return 0;
diff --git a/unique_fd.h b/unique_fd.h
new file mode 100644
index 000000000..98a7c7b67
--- /dev/null
+++ b/unique_fd.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef UNIQUE_FD_H
+#define UNIQUE_FD_H
+
+#include <stdio.h>
+
+#include <memory>
+
+class unique_fd {
+ public:
+ unique_fd(int fd) : fd_(fd) { }
+
+ unique_fd(unique_fd&& uf) {
+ fd_ = uf.fd_;
+ uf.fd_ = -1;
+ }
+
+ ~unique_fd() {
+ if (fd_ != -1) {
+ close(fd_);
+ }
+ }
+
+ int get() {
+ return fd_;
+ }
+
+ // Movable.
+ unique_fd& operator=(unique_fd&& uf) {
+ fd_ = uf.fd_;
+ uf.fd_ = -1;
+ return *this;
+ }
+
+ explicit operator bool() const {
+ return fd_ != -1;
+ }
+
+ private:
+ int fd_;
+
+ // Non-copyable.
+ unique_fd(const unique_fd&) = delete;
+ unique_fd& operator=(const unique_fd&) = delete;
+};
+
+// Custom deleter for unique_file to avoid fclose(NULL).
+struct safe_fclose {
+ void operator()(FILE *fp) const {
+ if (fp) {
+ fclose(fp);
+ };
+ }
+};
+
+using unique_file = std::unique_ptr<FILE, safe_fclose>;
+
+#endif // UNIQUE_FD_H
diff --git a/updater/blockimg.cpp b/updater/blockimg.cpp
index 77117db05..3a07da404 100644
--- a/updater/blockimg.cpp
+++ b/updater/blockimg.cpp
@@ -32,11 +32,17 @@
#include <time.h>
#include <unistd.h>
+#include <memory>
+#include <string>
+
+#include <base/strings.h>
+
#include "applypatch/applypatch.h"
#include "edify/expr.h"
#include "mincrypt/sha.h"
#include "minzip/Hash.h"
#include "updater.h"
+#include "print_sha1.h"
#define BLOCKSIZE 4096
@@ -49,8 +55,6 @@
#define STASH_DIRECTORY_MODE 0700
#define STASH_FILE_MODE 0600
-char* PrintSha1(const uint8_t* digest);
-
typedef struct {
int count;
int size;
@@ -144,28 +148,22 @@ err:
exit(1);
}
-static int range_overlaps(RangeSet* r1, RangeSet* r2) {
- int i, j, r1_0, r1_1, r2_0, r2_1;
-
- if (!r1 || !r2) {
- return 0;
- }
-
- for (i = 0; i < r1->count; ++i) {
- r1_0 = r1->pos[i * 2];
- r1_1 = r1->pos[i * 2 + 1];
+static bool range_overlaps(const RangeSet& r1, const RangeSet& r2) {
+ for (int i = 0; i < r1.count; ++i) {
+ int r1_0 = r1.pos[i * 2];
+ int r1_1 = r1.pos[i * 2 + 1];
- for (j = 0; j < r2->count; ++j) {
- r2_0 = r2->pos[j * 2];
- r2_1 = r2->pos[j * 2 + 1];
+ for (int j = 0; j < r2.count; ++j) {
+ int r2_0 = r2.pos[j * 2];
+ int r2_1 = r2.pos[j * 2 + 1];
if (!(r2_0 >= r1_1 || r1_0 >= r2_1)) {
- return 1;
+ return true;
}
}
}
- return 0;
+ return false;
}
static int read_all(int fd, uint8_t* data, size_t size) {
@@ -404,7 +402,7 @@ static int WriteBlocks(RangeSet* tgt, uint8_t* buffer, int fd) {
// in *tgt, if tgt is non-NULL.
static int LoadSrcTgtVersion1(char** wordsave, RangeSet** tgt, int* src_blocks,
- uint8_t** buffer, size_t* buffer_alloc, int fd) {
+ uint8_t** buffer, size_t* buffer_alloc, int fd) {
char* word;
int rc;
@@ -425,8 +423,7 @@ static int LoadSrcTgtVersion1(char** wordsave, RangeSet** tgt, int* src_blocks,
}
static int VerifyBlocks(const char *expected, const uint8_t *buffer,
- size_t blocks, int printerror) {
- char* hexdigest = NULL;
+ size_t blocks, bool printerror) {
int rc = -1;
uint8_t digest[SHA_DIGEST_SIZE];
@@ -435,128 +432,75 @@ static int VerifyBlocks(const char *expected, const uint8_t *buffer,
}
SHA_hash(buffer, blocks * BLOCKSIZE, digest);
- hexdigest = PrintSha1(digest);
- if (hexdigest != NULL) {
- rc = strcmp(expected, hexdigest);
+ std::string hexdigest = print_sha1(digest);
- if (rc != 0 && printerror) {
- fprintf(stderr, "failed to verify blocks (expected %s, read %s)\n",
- expected, hexdigest);
- }
+ rc = hexdigest != std::string(expected);
- free(hexdigest);
+ if (rc != 0 && printerror) {
+ fprintf(stderr, "failed to verify blocks (expected %s, read %s)\n",
+ expected, hexdigest.c_str());
}
return rc;
}
-static char* GetStashFileName(const char* base, const char* id, const char* postfix) {
- char* fn;
- int len;
- int res;
-
- if (base == NULL) {
- return NULL;
+static std::string GetStashFileName(const std::string& base, const std::string id,
+ const std::string postfix) {
+ if (base.empty()) {
+ return "";
}
- if (id == NULL) {
- id = "";
- }
-
- if (postfix == NULL) {
- postfix = "";
- }
-
- len = strlen(STASH_DIRECTORY_BASE) + 1 + strlen(base) + 1 + strlen(id) + strlen(postfix) + 1;
- fn = reinterpret_cast<char*>(malloc(len));
-
- if (fn == NULL) {
- fprintf(stderr, "failed to malloc %d bytes for fn\n", len);
- return NULL;
- }
-
- res = snprintf(fn, len, STASH_DIRECTORY_BASE "/%s/%s%s", base, id, postfix);
-
- if (res < 0 || res >= len) {
- fprintf(stderr, "failed to format file name (return value %d)\n", res);
- free(fn);
- return NULL;
- }
+ std::string fn(STASH_DIRECTORY_BASE);
+ fn += "/" + base + "/" + id + postfix;
return fn;
}
-typedef void (*StashCallback)(const char*, void*);
+typedef void (*StashCallback)(const std::string&, void*);
// Does a best effort enumeration of stash files. Ignores possible non-file
// items in the stash directory and continues despite of errors. Calls the
// 'callback' function for each file and passes 'data' to the function as a
// parameter.
-static void EnumerateStash(const char* dirname, StashCallback callback, void* data) {
- char* fn;
- DIR* directory;
- int len;
- int res;
- struct dirent* item;
-
- if (dirname == NULL || callback == NULL) {
+static void EnumerateStash(const std::string& dirname, StashCallback callback, void* data) {
+ if (dirname.empty() || callback == NULL) {
return;
}
- directory = opendir(dirname);
+ std::unique_ptr<DIR, int(*)(DIR*)> directory(opendir(dirname.c_str()), closedir);
if (directory == NULL) {
if (errno != ENOENT) {
- fprintf(stderr, "opendir \"%s\" failed: %s\n", dirname, strerror(errno));
+ fprintf(stderr, "opendir \"%s\" failed: %s\n", dirname.c_str(), strerror(errno));
}
return;
}
- while ((item = readdir(directory)) != NULL) {
+ struct dirent* item;
+ while ((item = readdir(directory.get())) != NULL) {
if (item->d_type != DT_REG) {
continue;
}
- len = strlen(dirname) + 1 + strlen(item->d_name) + 1;
- fn = reinterpret_cast<char*>(malloc(len));
-
- if (fn == NULL) {
- fprintf(stderr, "failed to malloc %d bytes for fn\n", len);
- continue;
- }
-
- res = snprintf(fn, len, "%s/%s", dirname, item->d_name);
-
- if (res < 0 || res >= len) {
- fprintf(stderr, "failed to format file name (return value %d)\n", res);
- free(fn);
- continue;
- }
-
+ std::string fn = dirname + "/" + std::string(item->d_name);
callback(fn, data);
- free(fn);
- }
-
- if (closedir(directory) == -1) {
- fprintf(stderr, "closedir \"%s\" failed: %s\n", dirname, strerror(errno));
}
}
-static void UpdateFileSize(const char* fn, void* data) {
- int* size = (int*) data;
- struct stat st;
-
- if (!fn || !data) {
+static void UpdateFileSize(const std::string& fn, void* data) {
+ if (fn.empty() || !data) {
return;
}
- if (stat(fn, &st) == -1) {
- fprintf(stderr, "stat \"%s\" failed: %s\n", fn, strerror(errno));
+ struct stat st;
+ if (stat(fn.c_str(), &st) == -1) {
+ fprintf(stderr, "stat \"%s\" failed: %s\n", fn.c_str(), strerror(errno));
return;
}
+ int* size = reinterpret_cast<int*>(data);
*size += st.st_size;
}
@@ -564,57 +508,49 @@ static void UpdateFileSize(const char* fn, void* data) {
// contains files. There is nothing we can do about unlikely, but possible
// errors, so they are merely logged.
-static void DeleteFile(const char* fn, void* data) {
- if (fn) {
- fprintf(stderr, "deleting %s\n", fn);
+static void DeleteFile(const std::string& fn, void* data) {
+ if (!fn.empty()) {
+ fprintf(stderr, "deleting %s\n", fn.c_str());
- if (unlink(fn) == -1 && errno != ENOENT) {
- fprintf(stderr, "unlink \"%s\" failed: %s\n", fn, strerror(errno));
+ if (unlink(fn.c_str()) == -1 && errno != ENOENT) {
+ fprintf(stderr, "unlink \"%s\" failed: %s\n", fn.c_str(), strerror(errno));
}
}
}
-static void DeletePartial(const char* fn, void* data) {
- if (fn && strstr(fn, ".partial") != NULL) {
+static void DeletePartial(const std::string& fn, void* data) {
+ if (android::base::EndsWith(fn, ".partial")) {
DeleteFile(fn, data);
}
}
-static void DeleteStash(const char* base) {
- char* dirname;
-
- if (base == NULL) {
+static void DeleteStash(const std::string& base) {
+ if (base.empty()) {
return;
}
- dirname = GetStashFileName(base, NULL, NULL);
-
- if (dirname == NULL) {
- return;
- }
+ fprintf(stderr, "deleting stash %s\n", base.c_str());
- fprintf(stderr, "deleting stash %s\n", base);
+ std::string dirname = GetStashFileName(base, "", "");
EnumerateStash(dirname, DeleteFile, NULL);
- if (rmdir(dirname) == -1) {
+ if (rmdir(dirname.c_str()) == -1) {
if (errno != ENOENT && errno != ENOTDIR) {
- fprintf(stderr, "rmdir \"%s\" failed: %s\n", dirname, strerror(errno));
+ fprintf(stderr, "rmdir \"%s\" failed: %s\n", dirname.c_str(), strerror(errno));
}
}
-
- free(dirname);
}
-static int LoadStash(const char* base, const char* id, int verify, int* blocks, uint8_t** buffer,
- size_t* buffer_alloc, int printnoent) {
- char *fn = NULL;
+static int LoadStash(const std::string& base, const char* id, int verify, int* blocks,
+ uint8_t** buffer, size_t* buffer_alloc, bool printnoent) {
+ std::string fn;
int blockcount = 0;
int fd = -1;
int rc = -1;
int res;
struct stat st;
- if (!base || !id || !buffer || !buffer_alloc) {
+ if (base.empty() || !id || !buffer || !buffer_alloc) {
goto lsout;
}
@@ -622,33 +558,29 @@ static int LoadStash(const char* base, const char* id, int verify, int* blocks,
blocks = &blockcount;
}
- fn = GetStashFileName(base, id, NULL);
-
- if (fn == NULL) {
- goto lsout;
- }
+ fn = GetStashFileName(base, std::string(id), "");
- res = stat(fn, &st);
+ res = stat(fn.c_str(), &st);
if (res == -1) {
if (errno != ENOENT || printnoent) {
- fprintf(stderr, "stat \"%s\" failed: %s\n", fn, strerror(errno));
+ fprintf(stderr, "stat \"%s\" failed: %s\n", fn.c_str(), strerror(errno));
}
goto lsout;
}
- fprintf(stderr, " loading %s\n", fn);
+ fprintf(stderr, " loading %s\n", fn.c_str());
if ((st.st_size % BLOCKSIZE) != 0) {
fprintf(stderr, "%s size %" PRId64 " not multiple of block size %d",
- fn, static_cast<int64_t>(st.st_size), BLOCKSIZE);
+ fn.c_str(), static_cast<int64_t>(st.st_size), BLOCKSIZE);
goto lsout;
}
- fd = TEMP_FAILURE_RETRY(open(fn, O_RDONLY));
+ fd = TEMP_FAILURE_RETRY(open(fn.c_str(), O_RDONLY));
if (fd == -1) {
- fprintf(stderr, "open \"%s\" failed: %s\n", fn, strerror(errno));
+ fprintf(stderr, "open \"%s\" failed: %s\n", fn.c_str(), strerror(errno));
goto lsout;
}
@@ -660,8 +592,8 @@ static int LoadStash(const char* base, const char* id, int verify, int* blocks,
*blocks = st.st_size / BLOCKSIZE;
- if (verify && VerifyBlocks(id, *buffer, *blocks, 1) != 0) {
- fprintf(stderr, "unexpected contents in %s\n", fn);
+ if (verify && VerifyBlocks(id, *buffer, *blocks, true) != 0) {
+ fprintf(stderr, "unexpected contents in %s\n", fn.c_str());
DeleteFile(fn, NULL);
goto lsout;
}
@@ -673,23 +605,21 @@ lsout:
close(fd);
}
- if (fn) {
- free(fn);
- }
-
return rc;
}
-static int WriteStash(const char* base, const char* id, int blocks, uint8_t* buffer,
- int checkspace, int *exists) {
- char *fn = NULL;
- char *cn = NULL;
+static int WriteStash(const std::string& base, const char* id, int blocks,
+ uint8_t* buffer, bool checkspace, int *exists) {
+ std::string fn;
+ std::string cn;
+ std::string dname;
int fd = -1;
int rc = -1;
+ int dfd = -1;
int res;
struct stat st;
- if (base == NULL || buffer == NULL) {
+ if (base.empty() || buffer == NULL) {
goto wsout;
}
@@ -698,21 +628,17 @@ static int WriteStash(const char* base, const char* id, int blocks, uint8_t* buf
goto wsout;
}
- fn = GetStashFileName(base, id, ".partial");
- cn = GetStashFileName(base, id, NULL);
-
- if (fn == NULL || cn == NULL) {
- goto wsout;
- }
+ fn = GetStashFileName(base, std::string(id), ".partial");
+ cn = GetStashFileName(base, std::string(id), "");
if (exists) {
- res = stat(cn, &st);
+ res = stat(cn.c_str(), &st);
if (res == 0) {
// The file already exists and since the name is the hash of the contents,
// it's safe to assume the contents are identical (accidental hash collisions
// are unlikely)
- fprintf(stderr, " skipping %d existing blocks in %s\n", blocks, cn);
+ fprintf(stderr, " skipping %d existing blocks in %s\n", blocks, cn.c_str());
*exists = 1;
rc = 0;
goto wsout;
@@ -721,12 +647,12 @@ static int WriteStash(const char* base, const char* id, int blocks, uint8_t* buf
*exists = 0;
}
- fprintf(stderr, " writing %d blocks to %s\n", blocks, cn);
+ fprintf(stderr, " writing %d blocks to %s\n", blocks, cn.c_str());
- fd = TEMP_FAILURE_RETRY(open(fn, O_WRONLY | O_CREAT | O_TRUNC, STASH_FILE_MODE));
+ fd = TEMP_FAILURE_RETRY(open(fn.c_str(), O_WRONLY | O_CREAT | O_TRUNC, STASH_FILE_MODE));
if (fd == -1) {
- fprintf(stderr, "failed to create \"%s\": %s\n", fn, strerror(errno));
+ fprintf(stderr, "failed to create \"%s\": %s\n", fn.c_str(), strerror(errno));
goto wsout;
}
@@ -735,12 +661,26 @@ static int WriteStash(const char* base, const char* id, int blocks, uint8_t* buf
}
if (fsync(fd) == -1) {
- fprintf(stderr, "fsync \"%s\" failed: %s\n", fn, strerror(errno));
+ fprintf(stderr, "fsync \"%s\" failed: %s\n", fn.c_str(), strerror(errno));
+ goto wsout;
+ }
+
+ if (rename(fn.c_str(), cn.c_str()) == -1) {
+ fprintf(stderr, "rename(\"%s\", \"%s\") failed: %s\n", fn.c_str(), cn.c_str(),
+ strerror(errno));
+ goto wsout;
+ }
+
+ dname = GetStashFileName(base, "", "");
+ dfd = TEMP_FAILURE_RETRY(open(dname.c_str(), O_RDONLY | O_DIRECTORY));
+
+ if (dfd == -1) {
+ fprintf(stderr, "failed to open \"%s\" failed: %s\n", dname.c_str(), strerror(errno));
goto wsout;
}
- if (rename(fn, cn) == -1) {
- fprintf(stderr, "rename(\"%s\", \"%s\") failed: %s\n", fn, cn, strerror(errno));
+ if (fsync(dfd) == -1) {
+ fprintf(stderr, "fsync \"%s\" failed: %s\n", dname.c_str(), strerror(errno));
goto wsout;
}
@@ -751,12 +691,8 @@ wsout:
close(fd);
}
- if (fn) {
- free(fn);
- }
-
- if (cn) {
- free(cn);
+ if (dfd != -1) {
+ close(dfd);
}
return rc;
@@ -766,103 +702,79 @@ wsout:
// hash enough space for the expected amount of blocks we need to store. Returns
// >0 if we created the directory, zero if it existed already, and <0 of failure.
-static int CreateStash(State* state, int maxblocks, const char* blockdev, char** base) {
- char* dirname = NULL;
- const uint8_t* digest;
- int rc = -1;
- int res;
- int size = 0;
- SHA_CTX ctx;
- struct stat st;
-
- if (blockdev == NULL || base == NULL) {
- goto csout;
+static int CreateStash(State* state, int maxblocks, const char* blockdev,
+ std::string& base) {
+ if (blockdev == NULL) {
+ return -1;
}
// Stash directory should be different for each partition to avoid conflicts
// when updating multiple partitions at the same time, so we use the hash of
// the block device name as the base directory
+ SHA_CTX ctx;
SHA_init(&ctx);
SHA_update(&ctx, blockdev, strlen(blockdev));
- digest = SHA_final(&ctx);
- *base = PrintSha1(digest);
+ const uint8_t* digest = SHA_final(&ctx);
+ base = print_sha1(digest);
- if (*base == NULL) {
- goto csout;
- }
-
- dirname = GetStashFileName(*base, NULL, NULL);
-
- if (dirname == NULL) {
- goto csout;
- }
-
- res = stat(dirname, &st);
+ std::string dirname = GetStashFileName(base, "", "");
+ struct stat st;
+ int res = stat(dirname.c_str(), &st);
if (res == -1 && errno != ENOENT) {
- ErrorAbort(state, "stat \"%s\" failed: %s\n", dirname, strerror(errno));
- goto csout;
+ ErrorAbort(state, "stat \"%s\" failed: %s\n", dirname.c_str(), strerror(errno));
+ return -1;
} else if (res != 0) {
- fprintf(stderr, "creating stash %s\n", dirname);
- res = mkdir(dirname, STASH_DIRECTORY_MODE);
+ fprintf(stderr, "creating stash %s\n", dirname.c_str());
+ res = mkdir(dirname.c_str(), STASH_DIRECTORY_MODE);
if (res != 0) {
- ErrorAbort(state, "mkdir \"%s\" failed: %s\n", dirname, strerror(errno));
- goto csout;
+ ErrorAbort(state, "mkdir \"%s\" failed: %s\n", dirname.c_str(), strerror(errno));
+ return -1;
}
if (CacheSizeCheck(maxblocks * BLOCKSIZE) != 0) {
ErrorAbort(state, "not enough space for stash\n");
- goto csout;
+ return -1;
}
- rc = 1; // Created directory
- goto csout;
+ return 1; // Created directory
}
- fprintf(stderr, "using existing stash %s\n", dirname);
+ fprintf(stderr, "using existing stash %s\n", dirname.c_str());
// If the directory already exists, calculate the space already allocated to
// stash files and check if there's enough for all required blocks. Delete any
// partially completed stash files first.
EnumerateStash(dirname, DeletePartial, NULL);
+ int size = 0;
EnumerateStash(dirname, UpdateFileSize, &size);
size = (maxblocks * BLOCKSIZE) - size;
if (size > 0 && CacheSizeCheck(size) != 0) {
ErrorAbort(state, "not enough space for stash (%d more needed)\n", size);
- goto csout;
- }
-
- rc = 0; // Using existing directory
-
-csout:
- if (dirname) {
- free(dirname);
+ return -1;
}
- return rc;
+ return 0; // Using existing directory
}
-static int SaveStash(const char* base, char** wordsave, uint8_t** buffer, size_t* buffer_alloc,
- int fd, int usehash, int* isunresumable) {
- char *id = NULL;
- int blocks = 0;
-
+static int SaveStash(const std::string& base, char** wordsave, uint8_t** buffer,
+ size_t* buffer_alloc, int fd, int usehash, bool* isunresumable) {
if (!wordsave || !buffer || !buffer_alloc || !isunresumable) {
return -1;
}
- id = strtok_r(NULL, " ", wordsave);
-
+ char *id = strtok_r(NULL, " ", wordsave);
if (id == NULL) {
fprintf(stderr, "missing id field in stash command\n");
return -1;
}
- if (usehash && LoadStash(base, id, 1, &blocks, buffer, buffer_alloc, 0) == 0) {
+ int blocks = 0;
+ if (usehash && LoadStash(base, id, 1, &blocks, buffer, buffer_alloc, false) == 0) {
// Stash file already exists and has expected contents. Do not
// read from source again, as the source may have been already
// overwritten during a previous attempt.
@@ -873,7 +785,7 @@ static int SaveStash(const char* base, char** wordsave, uint8_t** buffer, size_t
return -1;
}
- if (usehash && VerifyBlocks(id, *buffer, blocks, 1) != 0) {
+ if (usehash && VerifyBlocks(id, *buffer, blocks, true) != 0) {
// Source blocks have unexpected contents. If we actually need this
// data later, this is an unrecoverable error. However, the command
// that uses the data may have already completed previously, so the
@@ -883,24 +795,17 @@ static int SaveStash(const char* base, char** wordsave, uint8_t** buffer, size_t
}
fprintf(stderr, "stashing %d blocks to %s\n", blocks, id);
- return WriteStash(base, id, blocks, *buffer, 0, NULL);
+ return WriteStash(base, id, blocks, *buffer, false, NULL);
}
-static int FreeStash(const char* base, const char* id) {
- char *fn = NULL;
-
- if (base == NULL || id == NULL) {
+static int FreeStash(const std::string& base, const char* id) {
+ if (base.empty() || id == NULL) {
return -1;
}
- fn = GetStashFileName(base, id, NULL);
-
- if (fn == NULL) {
- return -1;
- }
+ std::string fn = GetStashFileName(base, std::string(id), "");
DeleteFile(fn, NULL);
- free(fn);
return 0;
}
@@ -939,8 +844,8 @@ static void MoveRange(uint8_t* dest, RangeSet* locs, const uint8_t* source) {
// target RangeSet. Any stashes required are loaded using LoadStash.
static int LoadSrcTgtVersion2(char** wordsave, RangeSet** tgt, int* src_blocks,
- uint8_t** buffer, size_t* buffer_alloc, int fd,
- const char* stashbase, int* overlap) {
+ uint8_t** buffer, size_t* buffer_alloc, int fd,
+ const std::string& stashbase, bool* overlap) {
char* word;
char* colonsave;
char* colon;
@@ -967,7 +872,7 @@ static int LoadSrcTgtVersion2(char** wordsave, RangeSet** tgt, int* src_blocks,
res = ReadBlocks(src, *buffer, fd);
if (overlap && tgt) {
- *overlap = range_overlaps(src, *tgt);
+ *overlap = range_overlaps(*src, **tgt);
}
free(src);
@@ -994,7 +899,7 @@ static int LoadSrcTgtVersion2(char** wordsave, RangeSet** tgt, int* src_blocks,
colonsave = NULL;
colon = strtok_r(word, ":", &colonsave);
- res = LoadStash(stashbase, colon, 0, NULL, &stash, &stashalloc, 1);
+ res = LoadStash(stashbase, colon, 0, NULL, &stash, &stashalloc, true);
if (res == -1) {
// These source blocks will fail verification if used later, but we
@@ -1022,12 +927,12 @@ typedef struct {
char* cmdname;
char* cpos;
char* freestash;
- char* stashbase;
- int canwrite;
+ std::string stashbase;
+ bool canwrite;
int createdstash;
int fd;
int foundwrites;
- int isunresumable;
+ bool isunresumable;
int version;
int written;
NewThreadInfo nti;
@@ -1055,7 +960,7 @@ typedef struct {
// can be performed.
static int LoadSrcTgtVersion3(CommandParameters* params, RangeSet** tgt, int* src_blocks,
- int onehash, int* overlap) {
+ int onehash, bool* overlap) {
char* srchash = NULL;
char* tgthash = NULL;
int stash_exists = 0;
@@ -1100,20 +1005,20 @@ static int LoadSrcTgtVersion3(CommandParameters* params, RangeSet** tgt, int* sr
goto v3out;
}
- if (VerifyBlocks(tgthash, tgtbuffer, (*tgt)->size, 0) == 0) {
+ if (VerifyBlocks(tgthash, tgtbuffer, (*tgt)->size, false) == 0) {
// Target blocks already have expected content, command should be skipped
rc = 1;
goto v3out;
}
- if (VerifyBlocks(srchash, params->buffer, *src_blocks, 1) == 0) {
+ if (VerifyBlocks(srchash, params->buffer, *src_blocks, true) == 0) {
// If source and target blocks overlap, stash the source blocks so we can
// resume from possible write errors
if (*overlap) {
fprintf(stderr, "stashing %d overlapping blocks to %s\n", *src_blocks,
srchash);
- if (WriteStash(params->stashbase, srchash, *src_blocks, params->buffer, 1,
+ if (WriteStash(params->stashbase, srchash, *src_blocks, params->buffer, true,
&stash_exists) != 0) {
fprintf(stderr, "failed to stash overlapping source blocks\n");
goto v3out;
@@ -1131,7 +1036,7 @@ static int LoadSrcTgtVersion3(CommandParameters* params, RangeSet** tgt, int* sr
}
if (*overlap && LoadStash(params->stashbase, srchash, 1, NULL, &params->buffer,
- &params->bufsize, 1) == 0) {
+ &params->bufsize, true) == 0) {
// Overlapping source blocks were previously stashed, command can proceed.
// We are recovering from an interrupted command, so we don't know if the
// stash can safely be deleted after this command.
@@ -1141,7 +1046,7 @@ static int LoadSrcTgtVersion3(CommandParameters* params, RangeSet** tgt, int* sr
// Valid source data not available, update cannot be resumed
fprintf(stderr, "partition has unexpected contents\n");
- params->isunresumable = 1;
+ params->isunresumable = true;
v3out:
if (tgtbuffer) {
@@ -1153,7 +1058,7 @@ v3out:
static int PerformCommandMove(CommandParameters* params) {
int blocks = 0;
- int overlap = 0;
+ bool overlap = false;
int rc = -1;
int status = 0;
RangeSet* tgt = NULL;
@@ -1344,7 +1249,7 @@ static int PerformCommandDiff(CommandParameters* params) {
char* logparams = NULL;
char* value = NULL;
int blocks = 0;
- int overlap = 0;
+ bool overlap = false;
int rc = -1;
int status = 0;
RangeSet* tgt = NULL;
@@ -1550,7 +1455,7 @@ static unsigned int HashString(const char *s) {
// - patch stream (filename within package.zip, must be uncompressed)
static Value* PerformBlockImageUpdate(const char* name, State* state, int argc, Expr* argv[],
- const Command* commands, int cmdcount, int dryrun) {
+ const Command* commands, int cmdcount, bool dryrun) {
char* line = NULL;
char* linesave = NULL;
@@ -1705,8 +1610,7 @@ static Value* PerformBlockImageUpdate(const char* name, State* state, int argc,
}
if (stash_max_blocks >= 0) {
- res = CreateStash(state, stash_max_blocks, blockdev_filename->data,
- &params.stashbase);
+ res = CreateStash(state, stash_max_blocks, blockdev_filename->data, params.stashbase);
if (res == -1) {
goto pbiudone;
@@ -1827,10 +1731,6 @@ pbiudone:
DeleteStash(params.stashbase);
}
- if (params.stashbase) {
- free(params.stashbase);
- }
-
return StringValue(rc == 0 ? strdup("t") : strdup(""));
}
@@ -1902,7 +1802,7 @@ Value* BlockImageVerifyFn(const char* name, State* state, int argc, Expr* argv[]
// Perform a dry run without writing to test if an update can proceed
return PerformBlockImageUpdate(name, state, argc, argv, commands,
- sizeof(commands) / sizeof(commands[0]), 1);
+ sizeof(commands) / sizeof(commands[0]), true);
}
Value* BlockImageUpdateFn(const char* name, State* state, int argc, Expr* argv[]) {
@@ -1918,7 +1818,7 @@ Value* BlockImageUpdateFn(const char* name, State* state, int argc, Expr* argv[]
};
return PerformBlockImageUpdate(name, state, argc, argv, commands,
- sizeof(commands) / sizeof(commands[0]), 0);
+ sizeof(commands) / sizeof(commands[0]), false);
}
Value* RangeSha1Fn(const char* name, State* state, int argc, Expr* argv[]) {
@@ -1979,7 +1879,7 @@ Value* RangeSha1Fn(const char* name, State* state, int argc, Expr* argv[]) {
if (digest == NULL) {
return StringValue(strdup(""));
} else {
- return StringValue(PrintSha1(digest));
+ return StringValue(strdup(print_sha1(digest).c_str()));
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 01:19:11 +0100