Remove ota_close(int) and ota_fclose(FILE*).
We should always use unique_fd or unique_file to hold the FD or FILE*
pointer when opening via ota_(f)open functions.
This CL avoids accidentally closing raw FDs or FILE* pointers that are
managed by unique_fd/unique_file.
Test: recovery_component_test passes.
Change-Id: If58eb8b5c5da507563f85efd5d56276472a1c957
diff --git a/updater/install.cpp b/updater/install.cpp
index b9bc19e..8db5c1f 100644
--- a/updater/install.cpp
+++ b/updater/install.cpp
@@ -509,8 +509,8 @@
return StringValue("");
}
- int fd = TEMP_FAILURE_RETRY(
- ota_open(dest_path.c_str(), O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR));
+ unique_fd fd(TEMP_FAILURE_RETRY(
+ ota_open(dest_path.c_str(), O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IWUSR)));
if (fd == -1) {
printf("%s: can't open %s for write: %s\n", name, dest_path.c_str(), strerror(errno));
return StringValue("");
@@ -872,68 +872,67 @@
// per line. # comment lines, blank lines, lines without '=' ignored),
// and returns the value for 'key' (or "" if it isn't defined).
Value* FileGetPropFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc != 2) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
+ if (argc != 2) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
+ }
+
+ std::vector<std::string> args;
+ if (!ReadArgs(state, 2, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ const std::string& filename = args[0];
+ const std::string& key = args[1];
+
+ struct stat st;
+ if (stat(filename.c_str(), &st) < 0) {
+ return ErrorAbort(state, kFileGetPropFailure, "%s: failed to stat \"%s\": %s", name,
+ filename.c_str(), strerror(errno));
+ }
+
+ constexpr off_t MAX_FILE_GETPROP_SIZE = 65536;
+ if (st.st_size > MAX_FILE_GETPROP_SIZE) {
+ return ErrorAbort(state, kFileGetPropFailure, "%s too large for %s (max %lld)",
+ filename.c_str(), name, static_cast<long long>(MAX_FILE_GETPROP_SIZE));
+ }
+
+ std::string buffer(st.st_size, '\0');
+ unique_file f(ota_fopen(filename.c_str(), "rb"));
+ if (f == nullptr) {
+ return ErrorAbort(state, kFileOpenFailure, "%s: failed to open %s: %s", name, filename.c_str(),
+ strerror(errno));
+ }
+
+ if (ota_fread(&buffer[0], 1, st.st_size, f.get()) != static_cast<size_t>(st.st_size)) {
+ ErrorAbort(state, kFreadFailure, "%s: failed to read %zu bytes from %s", name,
+ static_cast<size_t>(st.st_size), filename.c_str());
+ return nullptr;
+ }
+
+ ota_fclose(f);
+
+ std::vector<std::string> lines = android::base::Split(buffer, "\n");
+ for (size_t i = 0; i < lines.size(); i++) {
+ std::string line = android::base::Trim(lines[i]);
+
+ // comment or blank line: skip to next line
+ if (line.empty() || line[0] == '#') {
+ continue;
+ }
+ size_t equal_pos = line.find('=');
+ if (equal_pos == std::string::npos) {
+ continue;
}
- std::vector<std::string> args;
- if (!ReadArgs(state, 2, argv, &args)) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
- }
- const std::string& filename = args[0];
- const std::string& key = args[1];
+ // trim whitespace between key and '='
+ std::string str = android::base::Trim(line.substr(0, equal_pos));
- struct stat st;
- if (stat(filename.c_str(), &st) < 0) {
- return ErrorAbort(state, kFileGetPropFailure, "%s: failed to stat \"%s\": %s", name,
- filename.c_str(), strerror(errno));
- }
+ // not the key we're looking for
+ if (key != str) continue;
- constexpr off_t MAX_FILE_GETPROP_SIZE = 65536;
- if (st.st_size > MAX_FILE_GETPROP_SIZE) {
- return ErrorAbort(state, kFileGetPropFailure, "%s too large for %s (max %lld)",
- filename.c_str(), name, static_cast<long long>(MAX_FILE_GETPROP_SIZE));
- }
+ return StringValue(android::base::Trim(line.substr(equal_pos + 1)));
+ }
- std::string buffer(st.st_size, '\0');
- FILE* f = ota_fopen(filename.c_str(), "rb");
- if (f == nullptr) {
- return ErrorAbort(state, kFileOpenFailure, "%s: failed to open %s: %s", name,
- filename.c_str(), strerror(errno));
- }
-
- if (ota_fread(&buffer[0], 1, st.st_size, f) != static_cast<size_t>(st.st_size)) {
- ErrorAbort(state, kFreadFailure, "%s: failed to read %zu bytes from %s",
- name, static_cast<size_t>(st.st_size), filename.c_str());
- ota_fclose(f);
- return nullptr;
- }
-
- ota_fclose(f);
-
- std::vector<std::string> lines = android::base::Split(buffer, "\n");
- for (size_t i = 0; i < lines.size(); i++) {
- std::string line = android::base::Trim(lines[i]);
-
- // comment or blank line: skip to next line
- if (line.empty() || line[0] == '#') {
- continue;
- }
- size_t equal_pos = line.find('=');
- if (equal_pos == std::string::npos) {
- continue;
- }
-
- // trim whitespace between key and '='
- std::string str = android::base::Trim(line.substr(0, equal_pos));
-
- // not the key we're looking for
- if (key != str) continue;
-
- return StringValue(android::base::Trim(line.substr(equal_pos + 1)));
- }
-
- return StringValue("");
+ return StringValue("");
}
// apply_patch_space(bytes)
@@ -1292,29 +1291,26 @@
}
Value* WipeBlockDeviceFn(const char* name, State* state, int argc, Expr* argv[]) {
- if (argc != 2) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
- }
+ if (argc != 2) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
+ }
- std::vector<std::string> args;
- if (!ReadArgs(state, 2, argv, &args)) {
- return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
- }
- const std::string& filename = args[0];
- const std::string& len_str = args[1];
+ std::vector<std::string> args;
+ if (!ReadArgs(state, 2, argv, &args)) {
+ return ErrorAbort(state, kArgsParsingFailure, "%s() Failed to parse the argument(s)", name);
+ }
+ const std::string& filename = args[0];
+ const std::string& len_str = args[1];
- size_t len;
- if (!android::base::ParseUint(len_str.c_str(), &len)) {
- return nullptr;
- }
- int fd = ota_open(filename.c_str(), O_WRONLY, 0644);
- // The wipe_block_device function in ext4_utils returns 0 on success and 1
- // for failure.
- int status = wipe_block_device(fd, len);
-
- ota_close(fd);
-
- return StringValue((status == 0) ? "t" : "");
+ size_t len;
+ if (!android::base::ParseUint(len_str.c_str(), &len)) {
+ return nullptr;
+ }
+ unique_fd fd(ota_open(filename.c_str(), O_WRONLY, 0644));
+ // The wipe_block_device function in ext4_utils returns 0 on success and 1
+ // for failure.
+ int status = wipe_block_device(fd, len);
+ return StringValue((status == 0) ? "t" : "");
}
Value* EnableRebootFn(const char* name, State* state, int argc, Expr* argv[]) {