Change StringValue to use std::string
Changing the field of 'Value' in edify to std::string from char*.
Meanwhile cleaning up the users of 'Value' and switching them to
cpp style.
Test: compontent tests passed.
Bug: 31713288
Change-Id: Iec5a7d601b1e4ca40935bf1c70d325dafecec235
diff --git a/applypatch/applypatch.cpp b/applypatch/applypatch.cpp
index e52ef99..cf15560 100644
--- a/applypatch/applypatch.cpp
+++ b/applypatch/applypatch.cpp
@@ -408,11 +408,10 @@
// Search an array of sha1 strings for one matching the given sha1.
// Return the index of the match on success, or -1 if no match is
// found.
-int FindMatchingPatch(uint8_t* sha1, char* const * const patch_sha1_str,
- int num_patches) {
- uint8_t patch_sha1[SHA_DIGEST_LENGTH];
- for (int i = 0; i < num_patches; ++i) {
- if (ParseSha1(patch_sha1_str[i], patch_sha1) == 0 &&
+int FindMatchingPatch(uint8_t* sha1, const std::vector<std::string>& patch_sha1_str) {
+ for (size_t i = 0; i < patch_sha1_str.size(); ++i) {
+ uint8_t patch_sha1[SHA_DIGEST_LENGTH];
+ if (ParseSha1(patch_sha1_str[i].c_str(), patch_sha1) == 0 &&
memcmp(patch_sha1, sha1, SHA_DIGEST_LENGTH) == 0) {
return i;
}
@@ -423,8 +422,7 @@
// Returns 0 if the contents of the file (argv[2]) or the cached file
// match any of the sha1's on the command line (argv[3:]). Returns
// nonzero otherwise.
-int applypatch_check(const char* filename, int num_patches,
- char** const patch_sha1_str) {
+int applypatch_check(const char* filename, const std::vector<std::string>& patch_sha1_str) {
FileContents file;
// It's okay to specify no sha1s; the check will pass if the
@@ -432,8 +430,7 @@
// partitions, where the filename encodes the sha1s; no need to
// check them twice.)
if (LoadFileContents(filename, &file) != 0 ||
- (num_patches > 0 &&
- FindMatchingPatch(file.sha1, patch_sha1_str, num_patches) < 0)) {
+ FindMatchingPatch(file.sha1, patch_sha1_str) < 0) {
printf("file \"%s\" doesn't have any of expected "
"sha1 sums; checking cache\n", filename);
@@ -448,7 +445,7 @@
return 1;
}
- if (FindMatchingPatch(file.sha1, patch_sha1_str, num_patches) < 0) {
+ if (FindMatchingPatch(file.sha1, patch_sha1_str) < 0) {
printf("cache bits don't match any sha1 for \"%s\"\n", filename);
return 1;
}
@@ -532,8 +529,7 @@
const char* target_filename,
const char* target_sha1_str,
size_t target_size,
- int num_patches,
- char** const patch_sha1_str,
+ const std::vector<std::string>& patch_sha1_str,
Value** patch_data,
Value* bonus_data) {
printf("patch %s: ", source_filename);
@@ -573,7 +569,7 @@
}
if (!source_file.data.empty()) {
- int to_use = FindMatchingPatch(source_file.sha1, patch_sha1_str, num_patches);
+ int to_use = FindMatchingPatch(source_file.sha1, patch_sha1_str);
if (to_use >= 0) {
source_patch_value = patch_data[to_use];
}
@@ -589,7 +585,7 @@
return 1;
}
- int to_use = FindMatchingPatch(copy_file.sha1, patch_sha1_str, num_patches);
+ int to_use = FindMatchingPatch(copy_file.sha1, patch_sha1_str);
if (to_use >= 0) {
copy_patch_value = patch_data[to_use];
}
@@ -701,8 +697,8 @@
printf("patch is not a blob\n");
return 1;
}
- char* header = patch->data;
- ssize_t header_bytes_read = patch->size;
+ const char* header = &patch->data[0];
+ size_t header_bytes_read = patch->data.size();
bool use_bsdiff = false;
if (header_bytes_read >= 8 && memcmp(header, "BSDIFF40", 8) == 0) {
use_bsdiff = true;
diff --git a/applypatch/bspatch.cpp b/applypatch/bspatch.cpp
index a4945da..eb45e9c 100644
--- a/applypatch/bspatch.cpp
+++ b/applypatch/bspatch.cpp
@@ -64,7 +64,7 @@
);
}
-static off_t offtin(u_char *buf)
+static off_t offtin(const u_char *buf)
{
off_t y;
@@ -130,7 +130,7 @@
// from oldfile to x bytes from the diff block; copy y bytes from the
// extra block; seek forwards in oldfile by z bytes".
- unsigned char* header = (unsigned char*) patch->data + patch_offset;
+ const unsigned char* header = reinterpret_cast<const unsigned char*>(&patch->data[patch_offset]);
if (memcmp(header, "BSDIFF40", 8) != 0) {
printf("corrupt bsdiff patch file header (magic number)\n");
return 1;
@@ -149,7 +149,7 @@
int bzerr;
bz_stream cstream;
- cstream.next_in = patch->data + patch_offset + 32;
+ cstream.next_in = const_cast<char*>(&patch->data[patch_offset + 32]);
cstream.avail_in = ctrl_len;
cstream.bzalloc = NULL;
cstream.bzfree = NULL;
@@ -159,7 +159,7 @@
}
bz_stream dstream;
- dstream.next_in = patch->data + patch_offset + 32 + ctrl_len;
+ dstream.next_in = const_cast<char*>(&patch->data[patch_offset + 32 + ctrl_len]);
dstream.avail_in = data_len;
dstream.bzalloc = NULL;
dstream.bzfree = NULL;
@@ -169,8 +169,8 @@
}
bz_stream estream;
- estream.next_in = patch->data + patch_offset + 32 + ctrl_len + data_len;
- estream.avail_in = patch->size - (patch_offset + 32 + ctrl_len + data_len);
+ estream.next_in = const_cast<char*>(&patch->data[patch_offset + 32 + ctrl_len + data_len]);
+ estream.avail_in = patch->data.size() - (patch_offset + 32 + ctrl_len + data_len);
estream.bzalloc = NULL;
estream.bzfree = NULL;
estream.opaque = NULL;
diff --git a/applypatch/imgpatch.cpp b/applypatch/imgpatch.cpp
index 0c06d6b..1c4409e 100644
--- a/applypatch/imgpatch.cpp
+++ b/applypatch/imgpatch.cpp
@@ -24,6 +24,7 @@
#include <unistd.h>
#include <string.h>
+#include <string>
#include <vector>
#include "zlib.h"
@@ -35,10 +36,10 @@
int ApplyImagePatch(const unsigned char* old_data, ssize_t old_size,
const unsigned char* patch_data, ssize_t patch_size,
SinkFn sink, void* token) {
- Value patch = {VAL_BLOB, patch_size,
- reinterpret_cast<char*>(const_cast<unsigned char*>(patch_data))};
- return ApplyImagePatch(
- old_data, old_size, &patch, sink, token, nullptr, nullptr);
+ 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);
}
/*
@@ -51,9 +52,7 @@
const Value* patch,
SinkFn sink, void* token, SHA_CTX* ctx,
const Value* bonus_data) {
- ssize_t pos = 12;
- char* header = patch->data;
- if (patch->size < 12) {
+ if (patch->data.size() < 12) {
printf("patch too short to contain header\n");
return -1;
}
@@ -61,6 +60,8 @@
// IMGDIFF2 uses CHUNK_NORMAL, CHUNK_DEFLATE, and CHUNK_RAW.
// (IMGDIFF1, which is no longer supported, used CHUNK_NORMAL and
// CHUNK_GZIP.)
+ size_t pos = 12;
+ const char* header = &patch->data[0];
if (memcmp(header, "IMGDIFF2", 8) != 0) {
printf("corrupt patch file header (magic number)\n");
return -1;
@@ -68,20 +69,19 @@
int num_chunks = Read4(header+8);
- int i;
- for (i = 0; i < num_chunks; ++i) {
+ for (int i = 0; i < num_chunks; ++i) {
// each chunk's header record starts with 4 bytes.
- if (pos + 4 > patch->size) {
+ if (pos + 4 > patch->data.size()) {
printf("failed to read chunk %d record\n", i);
return -1;
}
- int type = Read4(patch->data + pos);
+ int type = Read4(&patch->data[pos]);
pos += 4;
if (type == CHUNK_NORMAL) {
- char* normal_header = patch->data + pos;
+ const char* normal_header = &patch->data[pos];
pos += 24;
- if (pos > patch->size) {
+ if (pos > patch->data.size()) {
printf("failed to read chunk %d normal header data\n", i);
return -1;
}
@@ -97,21 +97,21 @@
ApplyBSDiffPatch(old_data + src_start, src_len,
patch, patch_offset, sink, token, ctx);
} else if (type == CHUNK_RAW) {
- char* raw_header = patch->data + pos;
+ const char* raw_header = &patch->data[pos];
pos += 4;
- if (pos > patch->size) {
+ if (pos > patch->data.size()) {
printf("failed to read chunk %d raw header data\n", i);
return -1;
}
ssize_t data_len = Read4(raw_header);
- if (pos + data_len > patch->size) {
+ 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((unsigned char*)patch->data + pos,
+ 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) {
printf("failed to write chunk %d raw data\n", i);
return -1;
@@ -119,9 +119,9 @@
pos += data_len;
} else if (type == CHUNK_DEFLATE) {
// deflate chunks have an additional 60 bytes in their chunk header.
- char* deflate_header = patch->data + pos;
+ const char* deflate_header = &patch->data[pos];
pos += 60;
- if (pos > patch->size) {
+ if (pos > patch->data.size()) {
printf("failed to read chunk %d deflate header data\n", i);
return -1;
}
@@ -149,7 +149,7 @@
// the patch was constructed with bonus data. The
// deflation will come up 'bonus_size' bytes short; these
// must be appended from the bonus_data value.
- size_t bonus_size = (i == 1 && bonus_data != NULL) ? bonus_data->size : 0;
+ size_t bonus_size = (i == 1 && bonus_data != NULL) ? bonus_data->data.size() : 0;
std::vector<unsigned char> expanded_source(expanded_len);
@@ -189,7 +189,7 @@
if (bonus_size) {
memcpy(expanded_source.data() + (expanded_len - bonus_size),
- bonus_data->data, bonus_size);
+ &bonus_data->data[0], bonus_size);
}
}
diff --git a/applypatch/include/applypatch/applypatch.h b/applypatch/include/applypatch/applypatch.h
index 9ee39d2..80d6816 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 <string>
#include <vector>
#include "openssl/sha.h"
@@ -52,19 +53,16 @@
const char* target_filename,
const char* target_sha1_str,
size_t target_size,
- int num_patches,
- char** const patch_sha1_str,
+ const std::vector<std::string>& patch_sha1_str,
Value** patch_data,
Value* bonus_data);
int applypatch_check(const char* filename,
- int num_patches,
- char** const patch_sha1_str);
+ const std::vector<std::string>& patch_sha1_str);
int LoadFileContents(const char* filename, FileContents* file);
int SaveFileContents(const char* filename, const FileContents* file);
void FreeFileContents(FileContents* file);
-int FindMatchingPatch(uint8_t* sha1, char* const * const patch_sha1_str,
- int num_patches);
+int FindMatchingPatch(uint8_t* sha1, const std::vector<std::string>& patch_sha1_str);
// bsdiff.cpp
void ShowBSDiffLicense();
diff --git a/applypatch/main.cpp b/applypatch/main.cpp
index 1968ae4..a3a45d0 100644
--- a/applypatch/main.cpp
+++ b/applypatch/main.cpp
@@ -20,6 +20,7 @@
#include <unistd.h>
#include <memory>
+#include <string>
#include <vector>
#include "applypatch/applypatch.h"
@@ -30,7 +31,12 @@
if (argc < 3) {
return 2;
}
- return applypatch_check(argv[2], argc-3, argv+3);
+ std::vector<std::string> sha1;
+ for (int i = 3; i < argc; i++) {
+ sha1.push_back(argv[i]);
+ }
+
+ return applypatch_check(argv[2], sha1);
}
static int SpaceMode(int argc, char** argv) {
@@ -49,11 +55,13 @@
// 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,
+static bool ParsePatchArgs(int argc, char** argv, std::vector<std::string>* sha1s,
std::vector<FileContents>* files) {
- uint8_t digest[SHA_DIGEST_LENGTH];
-
+ if (sha1s == nullptr) {
+ return false;
+ }
for (int i = 0; i < argc; ++i) {
+ uint8_t digest[SHA_DIGEST_LENGTH];
char* colon = strchr(argv[i], ':');
if (colon == nullptr) {
printf("no ':' in patch argument \"%s\"\n", argv[i]);
@@ -83,18 +91,15 @@
static int PatchMode(int argc, char** argv) {
FileContents bonusFc;
- Value bonusValue;
- Value* bonus = nullptr;
+ Value bonus(VAL_INVALID, "");
if (argc >= 3 && strcmp(argv[1], "-b") == 0) {
if (LoadFileContents(argv[2], &bonusFc) != 0) {
printf("failed to load bonus file %s\n", argv[2]);
return 1;
}
- bonus = &bonusValue;
- bonus->type = VAL_BLOB;
- bonus->size = bonusFc.data.size();
- bonus->data = reinterpret_cast<char*>(bonusFc.data.data());
+ bonus.type = VAL_BLOB;
+ bonus.data = reinterpret_cast<const char*>(bonusFc.data.data());
argc -= 2;
argv += 2;
}
@@ -112,29 +117,26 @@
// If no <src-sha1>:<patch> is provided, it is in flash mode.
if (argc == 5) {
- if (bonus != nullptr) {
+ if (bonus.type != VAL_INVALID) {
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::string> sha1s;
std::vector<FileContents> files;
if (!ParsePatchArgs(argc-5, argv+5, &sha1s, &files)) {
printf("failed to parse patch args\n");
return 1;
}
- std::vector<Value> patches(files.size());
- std::vector<Value*> patch_ptrs(files.size());
+ std::vector<Value> patches;
+ std::vector<Value*> patch_ptrs;
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];
+ patches.push_back(Value(VAL_BLOB, reinterpret_cast<const char*>(files[i].data.data())));
+ patch_ptrs.push_back(&patches[i]);
}
return applypatch(argv[1], argv[2], argv[3], target_size,
- patch_ptrs.size(), sha1s.data(),
- patch_ptrs.data(), bonus);
+ sha1s, patch_ptrs.data(), &bonus);
}
// This program applies binary patches to files in a way that is safe
diff --git a/applypatch/utils.cpp b/applypatch/utils.cpp
index fef250f..450dc8d 100644
--- a/applypatch/utils.cpp
+++ b/applypatch/utils.cpp
@@ -38,22 +38,22 @@
fputc((value >> 56) & 0xff, f);
}
-int Read2(void* pv) {
- unsigned char* p = reinterpret_cast<unsigned char*>(pv);
+int Read2(const void* pv) {
+ const unsigned char* p = reinterpret_cast<const unsigned char*>(pv);
return (int)(((unsigned int)p[1] << 8) |
(unsigned int)p[0]);
}
-int Read4(void* pv) {
- unsigned char* p = reinterpret_cast<unsigned char*>(pv);
+int Read4(const void* pv) {
+ const unsigned char* p = reinterpret_cast<const unsigned char*>(pv);
return (int)(((unsigned int)p[3] << 24) |
((unsigned int)p[2] << 16) |
((unsigned int)p[1] << 8) |
(unsigned int)p[0]);
}
-int64_t Read8(void* pv) {
- unsigned char* p = reinterpret_cast<unsigned char*>(pv);
+int64_t Read8(const void* pv) {
+ const unsigned char* p = reinterpret_cast<const unsigned char*>(pv);
return (int64_t)(((uint64_t)p[7] << 56) |
((uint64_t)p[6] << 48) |
((uint64_t)p[5] << 40) |
diff --git a/applypatch/utils.h b/applypatch/utils.h
index 1c34edd..c7c8e90 100644
--- a/applypatch/utils.h
+++ b/applypatch/utils.h
@@ -24,8 +24,8 @@
void Write4(int value, FILE* f);
void Write8(int64_t value, FILE* f);
-int Read2(void* p);
-int Read4(void* p);
-int64_t Read8(void* p);
+int Read2(const void* p);
+int Read4(const void* p);
+int64_t Read8(const void* p);
#endif // _BUILD_TOOLS_APPLYPATCH_UTILS_H
diff --git a/edify/edify_parser.cpp b/edify/edify_parser.cpp
index 1b89cf2..908fcf1 100644
--- a/edify/edify_parser.cpp
+++ b/edify/edify_parser.cpp
@@ -66,12 +66,12 @@
ExprDump(0, root, buffer);
State state(buffer, nullptr);
- char* result = Evaluate(&state, root);
- if (result == NULL) {
+ std::string result;
+ if (!Evaluate(&state, root, &result)) {
printf("result was NULL, message is: %s\n",
(state.errmsg.empty() ? "(NULL)" : state.errmsg.c_str()));
} else {
- printf("result is [%s]\n", result);
+ printf("result is [%s]\n", result.c_str());
}
}
return 0;
diff --git a/edify/expr.cpp b/edify/expr.cpp
index 4000bc4..ec24097 100644
--- a/edify/expr.cpp
+++ b/edify/expr.cpp
@@ -22,184 +22,164 @@
#include <string.h>
#include <unistd.h>
+#include <memory>
#include <string>
#include <unordered_map>
+#include <vector>
+#include <android-base/parseint.h>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
// Functions should:
//
// - return a malloc()'d string
-// - if Evaluate() on any argument returns NULL, return NULL.
+// - if Evaluate() on any argument returns nullptr, return nullptr.
-int BooleanString(const char* s) {
- return s[0] != '\0';
+static bool BooleanString(const std::string& s) {
+ return !s.empty();
}
-char* Evaluate(State* state, Expr* expr) {
- Value* v = expr->fn(expr->name, state, expr->argc, expr->argv);
- if (v == NULL) return NULL;
+bool Evaluate(State* state, Expr* expr, std::string* result) {
+ if (result == nullptr) {
+ return false;
+ }
+
+ std::unique_ptr<Value> v(expr->fn(expr->name, state, expr->argc, expr->argv));
+ if (!v) {
+ return false;
+ }
if (v->type != VAL_STRING) {
ErrorAbort(state, kArgsParsingFailure, "expecting string, got value type %d", v->type);
- FreeValue(v);
- return NULL;
+ return false;
}
- char* result = v->data;
- free(v);
- return result;
+
+ *result = v->data;
+ return true;
}
Value* EvaluateValue(State* state, Expr* expr) {
return expr->fn(expr->name, state, expr->argc, expr->argv);
}
-Value* StringValue(char* str) {
- if (str == NULL) return NULL;
- Value* v = reinterpret_cast<Value*>(malloc(sizeof(Value)));
- v->type = VAL_STRING;
- v->size = strlen(str);
- v->data = str;
- return v;
+Value* StringValue(const char* str) {
+ if (str == nullptr) {
+ return nullptr;
+ }
+ return new Value(VAL_STRING, str);
}
-void FreeValue(Value* v) {
- if (v == NULL) return;
- free(v->data);
- free(v);
+Value* StringValue(const std::string& str) {
+ return StringValue(str.c_str());
}
Value* ConcatFn(const char* name, State* state, int argc, Expr* argv[]) {
if (argc == 0) {
- return StringValue(strdup(""));
+ return StringValue("");
}
- char** strings = reinterpret_cast<char**>(malloc(argc * sizeof(char*)));
- int i;
- for (i = 0; i < argc; ++i) {
- strings[i] = NULL;
- }
- char* result = NULL;
- int length = 0;
- for (i = 0; i < argc; ++i) {
- strings[i] = Evaluate(state, argv[i]);
- if (strings[i] == NULL) {
- goto done;
+ std::string result;
+ for (int i = 0; i < argc; ++i) {
+ std::string str;
+ if (!Evaluate(state, argv[i], &str)) {
+ return nullptr;
}
- length += strlen(strings[i]);
+ result += str;
}
- result = reinterpret_cast<char*>(malloc(length+1));
- int p;
- p = 0;
- for (i = 0; i < argc; ++i) {
- strcpy(result+p, strings[i]);
- p += strlen(strings[i]);
- }
- result[p] = '\0';
-
- done:
- for (i = 0; i < argc; ++i) {
- free(strings[i]);
- }
- free(strings);
return StringValue(result);
}
Value* IfElseFn(const char* name, State* state, int argc, Expr* argv[]) {
if (argc != 2 && argc != 3) {
state->errmsg = "ifelse expects 2 or 3 arguments";
- return NULL;
- }
- char* cond = Evaluate(state, argv[0]);
- if (cond == NULL) {
- return NULL;
+ return nullptr;
}
- if (BooleanString(cond) == true) {
- free(cond);
- return EvaluateValue(state, argv[1]);
- } else {
- if (argc == 3) {
- free(cond);
- return EvaluateValue(state, argv[2]);
- } else {
- return StringValue(cond);
- }
+ std::string cond;
+ if (!Evaluate(state, argv[0], &cond)) {
+ return nullptr;
}
+
+ if (!cond.empty()) {
+ return EvaluateValue(state, argv[1]);
+ } else if (argc == 3) {
+ return EvaluateValue(state, argv[2]);
+ }
+
+ return StringValue("");
}
Value* AbortFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* msg = NULL;
- if (argc > 0) {
- msg = Evaluate(state, argv[0]);
- }
- if (msg) {
+ std::string msg;
+ if (argc > 0 && Evaluate(state, argv[0], &msg)) {
state->errmsg = msg;
} else {
state->errmsg = "called abort()";
}
- return NULL;
+ return nullptr;
}
Value* AssertFn(const char* name, State* state, int argc, Expr* argv[]) {
- int i;
- for (i = 0; i < argc; ++i) {
- char* v = Evaluate(state, argv[i]);
- if (v == NULL) {
- return NULL;
+ for (int i = 0; i < argc; ++i) {
+ std::string result;
+ if (!Evaluate(state, argv[i], &result)) {
+ return nullptr;
}
- int b = BooleanString(v);
- free(v);
- if (!b) {
+ if (result.empty()) {
int len = argv[i]->end - argv[i]->start;
state->errmsg = "assert failed: " + state->script.substr(argv[i]->start, len);
- return NULL;
+ return nullptr;
}
}
- return StringValue(strdup(""));
+ return StringValue("");
}
Value* SleepFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* val = Evaluate(state, argv[0]);
- if (val == NULL) {
- return NULL;
+ std::string val;
+ if (!Evaluate(state, argv[0], &val)) {
+ return nullptr;
}
- int v = strtol(val, NULL, 10);
+
+ int v;
+ if (!android::base::ParseInt(val.c_str(), &v, 0)) {
+ return nullptr;
+ }
sleep(v);
+
return StringValue(val);
}
Value* StdoutFn(const char* name, State* state, int argc, Expr* argv[]) {
- int i;
- for (i = 0; i < argc; ++i) {
- char* v = Evaluate(state, argv[i]);
- if (v == NULL) {
- return NULL;
+ for (int i = 0; i < argc; ++i) {
+ std::string v;
+ if (!Evaluate(state, argv[i], &v)) {
+ return nullptr;
}
- fputs(v, stdout);
- free(v);
+ fputs(v.c_str(), stdout);
}
- return StringValue(strdup(""));
+ return StringValue("");
}
Value* LogicalAndFn(const char* name, State* state,
int argc, Expr* argv[]) {
- char* left = Evaluate(state, argv[0]);
- if (left == NULL) return NULL;
- if (BooleanString(left) == true) {
- free(left);
+ std::string left;
+ if (!Evaluate(state, argv[0], &left)) {
+ return nullptr;
+ }
+ if (BooleanString(left)) {
return EvaluateValue(state, argv[1]);
} else {
- return StringValue(left);
+ return StringValue("");
}
}
Value* LogicalOrFn(const char* name, State* state,
int argc, Expr* argv[]) {
- char* left = Evaluate(state, argv[0]);
- if (left == NULL) return NULL;
- if (BooleanString(left) == false) {
- free(left);
+ std::string left;
+ if (!Evaluate(state, argv[0], &left)) {
+ return nullptr;
+ }
+ if (!BooleanString(left)) {
return EvaluateValue(state, argv[1]);
} else {
return StringValue(left);
@@ -208,75 +188,75 @@
Value* LogicalNotFn(const char* name, State* state,
int argc, Expr* argv[]) {
- char* val = Evaluate(state, argv[0]);
- if (val == NULL) return NULL;
- bool bv = BooleanString(val);
- free(val);
- return StringValue(strdup(bv ? "" : "t"));
+ std::string val;
+ if (!Evaluate(state, argv[0], &val)) {
+ return nullptr;
+ }
+
+ return StringValue(BooleanString(val) ? "" : "t");
}
Value* SubstringFn(const char* name, State* state,
int argc, Expr* argv[]) {
- char* needle = Evaluate(state, argv[0]);
- if (needle == NULL) return NULL;
- char* haystack = Evaluate(state, argv[1]);
- if (haystack == NULL) {
- free(needle);
- return NULL;
+ std::string needle;
+ if (!Evaluate(state, argv[0], &needle)) {
+ return nullptr;
}
- char* result = strdup(strstr(haystack, needle) ? "t" : "");
- free(needle);
- free(haystack);
+ std::string haystack;
+ if (!Evaluate(state, argv[1], &haystack)) {
+ return nullptr;
+ }
+
+ std::string result = (haystack.find(needle) != std::string::npos) ? "t" : "";
return StringValue(result);
}
Value* EqualityFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* left = Evaluate(state, argv[0]);
- if (left == NULL) return NULL;
- char* right = Evaluate(state, argv[1]);
- if (right == NULL) {
- free(left);
- return NULL;
+ std::string left;
+ if (!Evaluate(state, argv[0], &left)) {
+ return nullptr;
+ }
+ std::string right;
+ if (!Evaluate(state, argv[1], &right)) {
+ return nullptr;
}
- char* result = strdup(strcmp(left, right) == 0 ? "t" : "");
- free(left);
- free(right);
+ const char* result = (left == right) ? "t" : "";
return StringValue(result);
}
Value* InequalityFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* left = Evaluate(state, argv[0]);
- if (left == NULL) return NULL;
- char* right = Evaluate(state, argv[1]);
- if (right == NULL) {
- free(left);
- return NULL;
+ std::string left;
+ if (!Evaluate(state, argv[0], &left)) {
+ return nullptr;
+ }
+ std::string right;
+ if (!Evaluate(state, argv[1], &right)) {
+ return nullptr;
}
- char* result = strdup(strcmp(left, right) != 0 ? "t" : "");
- free(left);
- free(right);
+ const char* result = (left != right) ? "t" : "";
return StringValue(result);
}
Value* SequenceFn(const char* name, State* state, int argc, Expr* argv[]) {
- Value* left = EvaluateValue(state, argv[0]);
- if (left == NULL) return NULL;
- FreeValue(left);
+ std::unique_ptr<Value> left(EvaluateValue(state, argv[0]));
+ if (!left) {
+ return nullptr;
+ }
return EvaluateValue(state, argv[1]);
}
Value* LessThanIntFn(const char* name, State* state, int argc, Expr* argv[]) {
if (argc != 2) {
state->errmsg = "less_than_int expects 2 arguments";
- return NULL;
+ return nullptr;
}
char* left;
char* right;
- if (ReadArgs(state, argv, 2, &left, &right) < 0) return NULL;
+ if (ReadArgs(state, argv, 2, &left, &right) < 0) return nullptr;
bool result = false;
char* end;
@@ -298,14 +278,14 @@
done:
free(left);
free(right);
- return StringValue(strdup(result ? "t" : ""));
+ return StringValue(result ? "t" : "");
}
Value* GreaterThanIntFn(const char* name, State* state,
int argc, Expr* argv[]) {
if (argc != 2) {
state->errmsg = "greater_than_int expects 2 arguments";
- return NULL;
+ return nullptr;
}
Expr* temp[2];
@@ -316,7 +296,7 @@
}
Value* Literal(const char* name, State* state, int argc, Expr* argv[]) {
- return StringValue(strdup(name));
+ return StringValue(name);
}
// -----------------------------------------------------------------
@@ -355,6 +335,43 @@
// convenience methods for functions
// -----------------------------------------------------------------
+// Evaluate the expressions in argv, and put the results of strings in
+// args. If any expression evaluates to nullptr, free the rest and return
+// false. Return true on success.
+bool ReadArgs(State* state, int argc, Expr* argv[], std::vector<std::string>* args) {
+ if (args == nullptr) {
+ return false;
+ }
+ for (int i = 0; i < argc; ++i) {
+ std::string var;
+ if (!Evaluate(state, argv[i], &var)) {
+ args->clear();
+ return false;
+ }
+ args->push_back(var);
+ }
+ return true;
+}
+
+// Evaluate the expressions in argv, and put the results of Value* in
+// args. If any expression evaluate to nullptr, free the rest and return
+// false. Return true on success.
+bool ReadValueArgs(State* state, int argc, Expr* argv[],
+ std::vector<std::unique_ptr<Value>>* args) {
+ if (args == nullptr) {
+ return false;
+ }
+ for (int i = 0; i < argc; ++i) {
+ std::unique_ptr<Value> v(EvaluateValue(state, argv[i]));
+ if (!v) {
+ args->clear();
+ return false;
+ }
+ args->push_back(std::move(v));
+ }
+ return true;
+}
+
// Evaluate the expressions in argv, giving 'count' char* (the ... is
// zero or more char** to put them in). If any expression evaluates
// to NULL, free the rest and return -1. Return 0 on success.
@@ -364,8 +381,9 @@
va_start(v, count);
int i;
for (i = 0; i < count; ++i) {
- args[i] = Evaluate(state, argv[i]);
- if (args[i] == NULL) {
+ std::string str;
+ if (!Evaluate(state, argv[i], &str) ||
+ (args[i] = strdup(str.c_str())) == nullptr) {
va_end(v);
int j;
for (j = 0; j < i; ++j) {
@@ -385,25 +403,24 @@
// zero or more Value** to put them in). If any expression evaluates
// to NULL, free the rest and return -1. Return 0 on success.
int ReadValueArgs(State* state, Expr* argv[], int count, ...) {
- Value** args = reinterpret_cast<Value**>(malloc(count * sizeof(Value*)));
+ Value** args = new Value*[count];
va_list v;
va_start(v, count);
- int i;
- for (i = 0; i < count; ++i) {
+ for (int i = 0; i < count; ++i) {
args[i] = EvaluateValue(state, argv[i]);
if (args[i] == NULL) {
va_end(v);
int j;
for (j = 0; j < i; ++j) {
- FreeValue(args[j]);
+ delete args[j];
}
- free(args);
+ delete[] args;
return -1;
}
*(va_arg(v, Value**)) = args[i];
}
va_end(v);
- free(args);
+ delete[] args;
return 0;
}
@@ -413,12 +430,11 @@
// strings it contains.
char** ReadVarArgs(State* state, int argc, Expr* argv[]) {
char** args = (char**)malloc(argc * sizeof(char*));
- int i = 0;
- for (i = 0; i < argc; ++i) {
- args[i] = Evaluate(state, argv[i]);
- if (args[i] == NULL) {
- int j;
- for (j = 0; j < i; ++j) {
+ for (int i = 0; i < argc; ++i) {
+ std::string str;
+ if (!Evaluate(state, argv[i], &str) ||
+ (args[i] = strdup(str.c_str())) == nullptr) {
+ for (int j = 0; j < i; ++j) {
free(args[j]);
}
free(args);
@@ -433,16 +449,16 @@
// The caller is responsible for freeing the returned array and the
// Values it contains.
Value** ReadValueVarArgs(State* state, int argc, Expr* argv[]) {
- Value** args = (Value**)malloc(argc * sizeof(Value*));
+ Value** args = new Value*[argc];
int i = 0;
for (i = 0; i < argc; ++i) {
args[i] = EvaluateValue(state, argv[i]);
if (args[i] == NULL) {
int j;
for (j = 0; j < i; ++j) {
- FreeValue(args[j]);
+ delete args[j];
}
- free(args);
+ delete[] args;
return NULL;
}
}
diff --git a/edify/expr.h b/edify/expr.h
index cd6139a..8530654 100644
--- a/edify/expr.h
+++ b/edify/expr.h
@@ -48,13 +48,19 @@
bool is_retry = false;
};
-#define VAL_STRING 1 // data will be NULL-terminated; size doesn't count null
-#define VAL_BLOB 2
+enum ValueType {
+ VAL_INVALID = -1,
+ VAL_STRING = 1,
+ VAL_BLOB = 2,
+};
struct Value {
- int type;
- ssize_t size;
- char* data;
+ ValueType type;
+ std::string data;
+
+ Value(ValueType type, const std::string& str) :
+ type(type),
+ data(str) {}
};
struct Expr;
@@ -75,11 +81,11 @@
Value* EvaluateValue(State* state, Expr* expr);
// Take one of the Expr*s passed to the function as an argument,
-// evaluate it, assert that it is a string, and return the resulting
-// char*. The caller takes ownership of the returned char*. This is
-// a convenience function for older functions that want to deal only
-// with strings.
-char* Evaluate(State* state, Expr* expr);
+// evaluate it, assert that it is a string, and update the result
+// parameter. This function returns true if the evaluation succeeds.
+// This is a convenience function for older functions that want to
+// deal only with strings.
+bool Evaluate(State* state, Expr* expr, std::string* result);
// Glue to make an Expr out of a literal.
Value* Literal(const char* name, State* state, int argc, Expr* argv[]);
@@ -114,6 +120,17 @@
// --- convenience functions for use in functions ---
+// Evaluate the expressions in argv, and put the results of strings in
+// args. If any expression evaluates to nullptr, free the rest and return
+// false. Return true on success.
+bool ReadArgs(State* state, int argc, Expr* argv[], std::vector<std::string>* args);
+
+// Evaluate the expressions in argv, and put the results of Value* in
+// args. If any expression evaluate to nullptr, free the rest and return
+// false. Return true on success.
+bool ReadValueArgs(State* state, int argc, Expr* argv[],
+ std::vector<std::unique_ptr<Value>>* args);
+
// Evaluate the expressions in argv, giving 'count' char* (the ... is
// zero or more char** to put them in). If any expression evaluates
// to NULL, free the rest and return -1. Return 0 on success.
@@ -146,11 +163,10 @@
Value* ErrorAbort(State* state, CauseCode cause_code, const char* format, ...)
__attribute__((format(printf, 3, 4)));
-// Wrap a string into a Value, taking ownership of the string.
-Value* StringValue(char* str);
+// Copying the string into a Value.
+Value* StringValue(const char* str);
-// Free a Value object.
-void FreeValue(Value* v);
+Value* StringValue(const std::string& str);
int parse_string(const char* str, Expr** root, int* error_count);
diff --git a/tests/component/applypatch_test.cpp b/tests/component/applypatch_test.cpp
index 2f7cb02..75f2e10 100644
--- a/tests/component/applypatch_test.cpp
+++ b/tests/component/applypatch_test.cpp
@@ -153,25 +153,16 @@
struct FileContents fc;
ASSERT_EQ(0, LoadFileContents(&rand_file[0], &fc));
- Value* patch1 = new Value();
- patch1->type = VAL_BLOB;
- patch1->size = fc.data.size();
- patch1->data = static_cast<char*>(malloc(fc.data.size()));
- memcpy(patch1->data, fc.data.data(), fc.data.size());
+ Value* patch1 = new Value(VAL_BLOB, std::string(fc.data.begin(), fc.data.end()));
patches.push_back(patch1);
ASSERT_EQ(0, LoadFileContents(&patch_file[0], &fc));
- Value* patch2 = new Value();
- patch2->type = VAL_BLOB;
- patch2->size = fc.st.st_size;
- patch2->data = static_cast<char*>(malloc(fc.data.size()));
- memcpy(patch2->data, fc.data.data(), fc.data.size());
+ Value* patch2 = new Value(VAL_BLOB, std::string(fc.data.begin(), fc.data.end()));
patches.push_back(patch2);
}
static void TearDownTestCase() {
delete output_f;
for (auto it = patches.begin(); it != patches.end(); ++it) {
- free((*it)->data);
delete *it;
}
patches.clear();
@@ -210,88 +201,87 @@
std::string ApplyPatchFullTest::output_loc;
TEST_F(ApplyPatchTest, CheckModeSingle) {
- char* s = &old_sha1[0];
- ASSERT_EQ(0, applypatch_check(&old_file[0], 1, &s));
+ std::vector<std::string> sha1s = { old_sha1 };
+ ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
}
TEST_F(ApplyPatchTest, CheckModeMultiple) {
- char* argv[3] = {
- &bad_sha1_a[0],
- &old_sha1[0],
- &bad_sha1_b[0]
+ std::vector<std::string> sha1s = {
+ bad_sha1_a,
+ old_sha1,
+ bad_sha1_b
};
- ASSERT_EQ(0, applypatch_check(&old_file[0], 3, argv));
+ ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
}
TEST_F(ApplyPatchTest, CheckModeFailure) {
- char* argv[2] = {
- &bad_sha1_a[0],
- &bad_sha1_b[0]
+ std::vector<std::string> sha1s = {
+ bad_sha1_a,
+ bad_sha1_b
};
- ASSERT_NE(0, applypatch_check(&old_file[0], 2, argv));
+ ASSERT_NE(0, applypatch_check(&old_file[0], sha1s));
}
TEST_F(ApplyPatchCacheTest, CheckCacheCorruptedSingle) {
mangle_file(old_file);
- char* s = &old_sha1[0];
- ASSERT_EQ(0, applypatch_check(&old_file[0], 1, &s));
+ std::vector<std::string> sha1s = { old_sha1 };
+ ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
}
TEST_F(ApplyPatchCacheTest, CheckCacheCorruptedMultiple) {
mangle_file(old_file);
- char* argv[3] = {
- &bad_sha1_a[0],
- &old_sha1[0],
- &bad_sha1_b[0]
+ std::vector<std::string> sha1s = {
+ bad_sha1_a,
+ old_sha1,
+ bad_sha1_b
};
- ASSERT_EQ(0, applypatch_check(&old_file[0], 3, argv));
+ ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
}
TEST_F(ApplyPatchCacheTest, CheckCacheCorruptedFailure) {
mangle_file(old_file);
- char* argv[2] = {
- &bad_sha1_a[0],
- &bad_sha1_b[0]
+ std::vector<std::string> sha1s = {
+ bad_sha1_a,
+ bad_sha1_b
};
- ASSERT_NE(0, applypatch_check(&old_file[0], 2, argv));
+ ASSERT_NE(0, applypatch_check(&old_file[0], sha1s));
}
TEST_F(ApplyPatchCacheTest, CheckCacheMissingSingle) {
unlink(&old_file[0]);
- char* s = &old_sha1[0];
- ASSERT_EQ(0, applypatch_check(&old_file[0], 1, &s));
+ std::vector<std::string> sha1s = { old_sha1 };
+ ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
}
TEST_F(ApplyPatchCacheTest, CheckCacheMissingMultiple) {
unlink(&old_file[0]);
- char* argv[3] = {
- &bad_sha1_a[0],
- &old_sha1[0],
- &bad_sha1_b[0]
+ std::vector<std::string> sha1s = {
+ bad_sha1_a,
+ old_sha1,
+ bad_sha1_b
};
- ASSERT_EQ(0, applypatch_check(&old_file[0], 3, argv));
+ ASSERT_EQ(0, applypatch_check(&old_file[0], sha1s));
}
TEST_F(ApplyPatchCacheTest, CheckCacheMissingFailure) {
unlink(&old_file[0]);
- char* argv[2] = {
- &bad_sha1_a[0],
- &bad_sha1_b[0]
+ std::vector<std::string> sha1s = {
+ bad_sha1_a,
+ bad_sha1_b
};
- ASSERT_NE(0, applypatch_check(&old_file[0], 2, argv));
+ ASSERT_NE(0, applypatch_check(&old_file[0], sha1s));
}
TEST_F(ApplyPatchFullTest, ApplyInPlace) {
- std::vector<char*> sha1s;
- sha1s.push_back(&bad_sha1_a[0]);
- sha1s.push_back(&old_sha1[0]);
-
+ std::vector<std::string> sha1s = {
+ bad_sha1_a,
+ old_sha1
+ };
int ap_result = applypatch(&old_file[0],
"-",
&new_sha1[0],
new_size,
- 2,
- sha1s.data(),
+ sha1s,
patches.data(),
nullptr);
ASSERT_EQ(0, ap_result);
@@ -301,8 +291,7 @@
"-",
&new_sha1[0],
new_size,
- 2,
- sha1s.data(),
+ sha1s,
patches.data(),
nullptr);
ASSERT_EQ(0, ap_result);
@@ -310,15 +299,15 @@
}
TEST_F(ApplyPatchFullTest, ApplyInNewLocation) {
- std::vector<char*> sha1s;
- sha1s.push_back(&bad_sha1_a[0]);
- sha1s.push_back(&old_sha1[0]);
+ std::vector<std::string> sha1s = {
+ bad_sha1_a,
+ old_sha1
+ };
int ap_result = applypatch(&old_file[0],
&output_loc[0],
&new_sha1[0],
new_size,
- 2,
- sha1s.data(),
+ sha1s,
patches.data(),
nullptr);
ASSERT_EQ(0, ap_result);
@@ -327,8 +316,7 @@
&output_loc[0],
&new_sha1[0],
new_size,
- 2,
- sha1s.data(),
+ sha1s,
patches.data(),
nullptr);
ASSERT_EQ(0, ap_result);
@@ -337,15 +325,15 @@
TEST_F(ApplyPatchFullTest, ApplyCorruptedInNewLocation) {
mangle_file(old_file);
- std::vector<char*> sha1s;
- sha1s.push_back(&bad_sha1_a[0]);
- sha1s.push_back(&old_sha1[0]);
+ std::vector<std::string> sha1s = {
+ bad_sha1_a,
+ old_sha1
+ };
int ap_result = applypatch(&old_file[0],
&output_loc[0],
&new_sha1[0],
new_size,
- 2,
- sha1s.data(),
+ sha1s,
patches.data(),
nullptr);
ASSERT_EQ(0, ap_result);
@@ -354,8 +342,7 @@
&output_loc[0],
&new_sha1[0],
new_size,
- 2,
- sha1s.data(),
+ sha1s,
patches.data(),
nullptr);
ASSERT_EQ(0, ap_result);
@@ -366,15 +353,15 @@
mangle_file(old_file);
mangle_file(cache_file);
- std::vector<char*> sha1s;
- sha1s.push_back(&bad_sha1_a[0]);
- sha1s.push_back(&old_sha1[0]);
+ std::vector<std::string> sha1s = {
+ bad_sha1_a,
+ old_sha1
+ };
int ap_result = applypatch(&old_file[0],
&output_loc[0],
&new_sha1[0],
new_size,
- 2,
- sha1s.data(),
+ sha1s,
patches.data(),
nullptr);
ASSERT_NE(0, ap_result);
@@ -383,8 +370,7 @@
&output_loc[0],
&new_sha1[0],
new_size,
- 2,
- sha1s.data(),
+ sha1s,
patches.data(),
nullptr);
ASSERT_NE(0, ap_result);
diff --git a/tests/component/edify_test.cpp b/tests/component/edify_test.cpp
index a4dbb9f..287e40c 100644
--- a/tests/component/edify_test.cpp
+++ b/tests/component/edify_test.cpp
@@ -28,15 +28,15 @@
State state(expr_str, nullptr);
- char* result = Evaluate(&state, e);
+ std::string result;
+ bool status = Evaluate(&state, e, &result);
if (expected == nullptr) {
- EXPECT_EQ(nullptr, result);
+ EXPECT_FALSE(status);
} else {
- EXPECT_STREQ(expected, result);
+ EXPECT_STREQ(expected, result.c_str());
}
- free(result);
}
class EdifyTest : public ::testing::Test {
diff --git a/tests/component/updater_test.cpp b/tests/component/updater_test.cpp
index 64a6b37..a859f11 100644
--- a/tests/component/updater_test.cpp
+++ b/tests/component/updater_test.cpp
@@ -32,12 +32,13 @@
State state(expr_str, nullptr);
- char* result = Evaluate(&state, e);
+ std::string result;
+ bool status = Evaluate(&state, e, &result);
if (expected == nullptr) {
- EXPECT_EQ(nullptr, result);
+ EXPECT_FALSE(status);
} else {
- EXPECT_STREQ(expected, result);
+ EXPECT_STREQ(expected, result.c_str());
}
// Error code is set in updater/updater.cpp only, by parsing State.errmsg.
@@ -46,7 +47,6 @@
// Cause code should always be available.
EXPECT_EQ(cause_code, state.cause_code);
- free(result);
}
class UpdaterTest : public ::testing::Test {
diff --git a/updater/blockimg.cpp b/updater/blockimg.cpp
index 433d980..5f9b437 100644
--- a/updater/blockimg.cpp
+++ b/updater/blockimg.cpp
@@ -1216,7 +1216,7 @@
size_t len;
if (!android::base::ParseUint(params.tokens[params.cpos++].c_str(), &len)) {
- fprintf(stderr, "invalid patch offset\n");
+ fprintf(stderr, "invalid patch len\n");
return -1;
}
@@ -1248,10 +1248,8 @@
if (status == 0) {
fprintf(stderr, "patching %zu blocks to %zu\n", blocks, tgt.size);
- Value patch_value;
- patch_value.type = VAL_BLOB;
- patch_value.size = len;
- patch_value.data = (char*) (params.patch_start + offset);
+ Value patch_value(VAL_BLOB,
+ std::string(reinterpret_cast<const char*>(params.patch_start + offset), len));
RangeSinkState rss(tgt);
rss.fd = params.fd;
@@ -1398,64 +1396,62 @@
Value* patch_data_fn = nullptr;
if (ReadValueArgs(state, argv, 4, &blockdev_filename, &transfer_list_value,
&new_data_fn, &patch_data_fn) < 0) {
- return StringValue(strdup(""));
+ return StringValue("");
}
- std::unique_ptr<Value, decltype(&FreeValue)> blockdev_filename_holder(blockdev_filename,
- FreeValue);
- std::unique_ptr<Value, decltype(&FreeValue)> transfer_list_value_holder(transfer_list_value,
- FreeValue);
- std::unique_ptr<Value, decltype(&FreeValue)> new_data_fn_holder(new_data_fn, FreeValue);
- std::unique_ptr<Value, decltype(&FreeValue)> patch_data_fn_holder(patch_data_fn, FreeValue);
+ std::unique_ptr<Value> blockdev_filename_holder(blockdev_filename);
+ std::unique_ptr<Value> transfer_list_value_holder(transfer_list_value);
+ std::unique_ptr<Value> new_data_fn_holder(new_data_fn);
+ std::unique_ptr<Value> patch_data_fn_holder(patch_data_fn);
if (blockdev_filename->type != VAL_STRING) {
ErrorAbort(state, kArgsParsingFailure, "blockdev_filename argument to %s must be string",
name);
- return StringValue(strdup(""));
+ return StringValue("");
}
if (transfer_list_value->type != VAL_BLOB) {
ErrorAbort(state, kArgsParsingFailure, "transfer_list argument to %s must be blob", name);
- return StringValue(strdup(""));
+ return StringValue("");
}
if (new_data_fn->type != VAL_STRING) {
ErrorAbort(state, kArgsParsingFailure, "new_data_fn argument to %s must be string", name);
- return StringValue(strdup(""));
+ return StringValue("");
}
if (patch_data_fn->type != VAL_STRING) {
ErrorAbort(state, kArgsParsingFailure, "patch_data_fn argument to %s must be string",
name);
- return StringValue(strdup(""));
+ return StringValue("");
}
UpdaterInfo* ui = reinterpret_cast<UpdaterInfo*>(state->cookie);
if (ui == nullptr) {
- return StringValue(strdup(""));
+ return StringValue("");
}
FILE* cmd_pipe = ui->cmd_pipe;
ZipArchive* za = ui->package_zip;
if (cmd_pipe == nullptr || za == nullptr) {
- return StringValue(strdup(""));
+ return StringValue("");
}
- const ZipEntry* patch_entry = mzFindZipEntry(za, patch_data_fn->data);
+ const ZipEntry* patch_entry = mzFindZipEntry(za, patch_data_fn->data.c_str());
if (patch_entry == nullptr) {
- fprintf(stderr, "%s(): no file \"%s\" in package", name, patch_data_fn->data);
- return StringValue(strdup(""));
+ fprintf(stderr, "%s(): no file \"%s\" in package", name, patch_data_fn->data.c_str());
+ return StringValue("");
}
params.patch_start = ui->package_zip_addr + mzGetZipEntryOffset(patch_entry);
- const ZipEntry* new_entry = mzFindZipEntry(za, new_data_fn->data);
+ const ZipEntry* new_entry = mzFindZipEntry(za, new_data_fn->data.c_str());
if (new_entry == nullptr) {
- fprintf(stderr, "%s(): no file \"%s\" in package", name, new_data_fn->data);
- return StringValue(strdup(""));
+ fprintf(stderr, "%s(): no file \"%s\" in package", name, new_data_fn->data.c_str());
+ return StringValue("");
}
- params.fd.reset(TEMP_FAILURE_RETRY(ota_open(blockdev_filename->data, O_RDWR)));
+ params.fd.reset(TEMP_FAILURE_RETRY(ota_open(blockdev_filename->data.c_str(), O_RDWR)));
if (params.fd == -1) {
- fprintf(stderr, "open \"%s\" failed: %s\n", blockdev_filename->data, strerror(errno));
- return StringValue(strdup(""));
+ fprintf(stderr, "open \"%s\" failed: %s\n", blockdev_filename->data.c_str(), strerror(errno));
+ return StringValue("");
}
if (params.canwrite) {
@@ -1471,24 +1467,21 @@
int error = pthread_create(¶ms.thread, &attr, unzip_new_data, ¶ms.nti);
if (error != 0) {
fprintf(stderr, "pthread_create failed: %s\n", strerror(error));
- return StringValue(strdup(""));
+ return StringValue("");
}
}
- // Copy all the lines in transfer_list_value into std::string for
- // processing.
- const std::string transfer_list(transfer_list_value->data, transfer_list_value->size);
- std::vector<std::string> lines = android::base::Split(transfer_list, "\n");
+ std::vector<std::string> lines = android::base::Split(transfer_list_value->data, "\n");
if (lines.size() < 2) {
ErrorAbort(state, kArgsParsingFailure, "too few lines in the transfer list [%zd]\n",
lines.size());
- return StringValue(strdup(""));
+ return StringValue("");
}
// First line in transfer list is the version number
if (!android::base::ParseInt(lines[0].c_str(), ¶ms.version, 1, 4)) {
fprintf(stderr, "unexpected transfer list version [%s]\n", lines[0].c_str());
- return StringValue(strdup(""));
+ return StringValue("");
}
fprintf(stderr, "blockimg version is %d\n", params.version);
@@ -1497,11 +1490,11 @@
int total_blocks;
if (!android::base::ParseInt(lines[1].c_str(), &total_blocks, 0)) {
ErrorAbort(state, kArgsParsingFailure, "unexpected block count [%s]\n", lines[1].c_str());
- return StringValue(strdup(""));
+ return StringValue("");
}
if (total_blocks == 0) {
- return StringValue(strdup("t"));
+ return StringValue("t");
}
size_t start = 2;
@@ -1509,7 +1502,7 @@
if (lines.size() < 4) {
ErrorAbort(state, kArgsParsingFailure, "too few lines in the transfer list [%zu]\n",
lines.size());
- return StringValue(strdup(""));
+ return StringValue("");
}
// Third line is how many stash entries are needed simultaneously
@@ -1520,12 +1513,12 @@
if (!android::base::ParseInt(lines[3].c_str(), &stash_max_blocks, 0)) {
ErrorAbort(state, kArgsParsingFailure, "unexpected maximum stash blocks [%s]\n",
lines[3].c_str());
- return StringValue(strdup(""));
+ return StringValue("");
}
- int res = CreateStash(state, stash_max_blocks, blockdev_filename->data, params.stashbase);
+ int res = CreateStash(state, stash_max_blocks, blockdev_filename->data.c_str(), params.stashbase);
if (res == -1) {
- return StringValue(strdup(""));
+ return StringValue("");
}
params.createdstash = res;
@@ -1589,7 +1582,7 @@
fprintf(stderr, "stashed %zu blocks\n", params.stashed);
fprintf(stderr, "max alloc needed was %zu\n", params.buffer.size());
- const char* partition = strrchr(blockdev_filename->data, '/');
+ const char* partition = strrchr(blockdev_filename->data.c_str(), '/');
if (partition != nullptr && *(partition+1) != 0) {
fprintf(cmd_pipe, "log bytes_written_%s: %zu\n", partition + 1,
params.written * BLOCKSIZE);
@@ -1623,7 +1616,7 @@
state->cause_code = failure_type;
}
- return StringValue(rc == 0 ? strdup("t") : strdup(""));
+ return StringValue(rc == 0 ? "t" : "");
}
// The transfer list is a text file containing commands to
@@ -1721,27 +1714,26 @@
Value* ranges;
if (ReadValueArgs(state, argv, 2, &blockdev_filename, &ranges) < 0) {
- return StringValue(strdup(""));
+ return StringValue("");
}
- std::unique_ptr<Value, decltype(&FreeValue)> ranges_holder(ranges, FreeValue);
- std::unique_ptr<Value, decltype(&FreeValue)> blockdev_filename_holder(blockdev_filename,
- FreeValue);
+ std::unique_ptr<Value> ranges_holder(ranges);
+ std::unique_ptr<Value> blockdev_filename_holder(blockdev_filename);
if (blockdev_filename->type != VAL_STRING) {
ErrorAbort(state, kArgsParsingFailure, "blockdev_filename argument to %s must be string",
name);
- return StringValue(strdup(""));
+ return StringValue("");
}
if (ranges->type != VAL_STRING) {
ErrorAbort(state, kArgsParsingFailure, "ranges argument to %s must be string", name);
- return StringValue(strdup(""));
+ return StringValue("");
}
- android::base::unique_fd fd(ota_open(blockdev_filename->data, O_RDWR));
+ android::base::unique_fd fd(ota_open(blockdev_filename->data.c_str(), O_RDWR));
if (fd == -1) {
- ErrorAbort(state, kFileOpenFailure, "open \"%s\" failed: %s", blockdev_filename->data,
- strerror(errno));
- return StringValue(strdup(""));
+ ErrorAbort(state, kFileOpenFailure, "open \"%s\" failed: %s",
+ blockdev_filename->data.c_str(), strerror(errno));
+ return StringValue("");
}
RangeSet rs;
@@ -1753,16 +1745,16 @@
std::vector<uint8_t> buffer(BLOCKSIZE);
for (size_t i = 0; i < rs.count; ++i) {
if (!check_lseek(fd, (off64_t)rs.pos[i*2] * BLOCKSIZE, SEEK_SET)) {
- ErrorAbort(state, kLseekFailure, "failed to seek %s: %s", blockdev_filename->data,
- strerror(errno));
- return StringValue(strdup(""));
+ ErrorAbort(state, kLseekFailure, "failed to seek %s: %s",
+ blockdev_filename->data.c_str(), strerror(errno));
+ return StringValue("");
}
for (size_t j = rs.pos[i*2]; j < rs.pos[i*2+1]; ++j) {
if (read_all(fd, buffer, BLOCKSIZE) == -1) {
- ErrorAbort(state, kFreadFailure, "failed to read %s: %s", blockdev_filename->data,
- strerror(errno));
- return StringValue(strdup(""));
+ ErrorAbort(state, kFreadFailure, "failed to read %s: %s",
+ blockdev_filename->data.c_str(), strerror(errno));
+ return StringValue("");
}
SHA1_Update(&ctx, buffer.data(), BLOCKSIZE);
@@ -1771,7 +1763,7 @@
uint8_t digest[SHA_DIGEST_LENGTH];
SHA1_Final(digest, &ctx);
- return StringValue(strdup(print_sha1(digest).c_str()));
+ return StringValue(print_sha1(digest));
}
// This function checks if a device has been remounted R/W prior to an incremental
@@ -1785,27 +1777,27 @@
if (ReadValueArgs(state, argv, 1, &arg_filename) < 0) {
return nullptr;
}
- std::unique_ptr<Value, decltype(&FreeValue)> filename(arg_filename, FreeValue);
+ std::unique_ptr<Value> filename(arg_filename);
if (filename->type != VAL_STRING) {
ErrorAbort(state, kArgsParsingFailure, "filename argument to %s must be string", name);
- return StringValue(strdup(""));
+ return StringValue("");
}
- android::base::unique_fd fd(ota_open(arg_filename->data, O_RDONLY));
+ android::base::unique_fd fd(ota_open(arg_filename->data.c_str(), O_RDONLY));
if (fd == -1) {
- ErrorAbort(state, kFileOpenFailure, "open \"%s\" failed: %s", arg_filename->data,
+ ErrorAbort(state, kFileOpenFailure, "open \"%s\" failed: %s", arg_filename->data.c_str(),
strerror(errno));
- return StringValue(strdup(""));
+ return StringValue("");
}
RangeSet blk0 {1 /*count*/, 1/*size*/, std::vector<size_t> {0, 1}/*position*/};
std::vector<uint8_t> block0_buffer(BLOCKSIZE);
if (ReadBlocks(blk0, block0_buffer, fd) == -1) {
- ErrorAbort(state, kFreadFailure, "failed to read %s: %s", arg_filename->data,
+ ErrorAbort(state, kFreadFailure, "failed to read %s: %s", arg_filename->data.c_str(),
strerror(errno));
- return StringValue(strdup(""));
+ return StringValue("");
}
// https://ext4.wiki.kernel.org/index.php/Ext4_Disk_Layout
@@ -1823,7 +1815,7 @@
uiPrintf(state, "Last remount happened on %s", ctime(&mount_time));
}
- return StringValue(strdup("t"));
+ return StringValue("t");
}
@@ -1835,40 +1827,40 @@
return NULL;
}
- std::unique_ptr<Value, decltype(&FreeValue)> filename(arg_filename, FreeValue);
- std::unique_ptr<Value, decltype(&FreeValue)> ranges(arg_ranges, FreeValue);
+ std::unique_ptr<Value> filename(arg_filename);
+ std::unique_ptr<Value> ranges(arg_ranges);
if (filename->type != VAL_STRING) {
ErrorAbort(state, kArgsParsingFailure, "filename argument to %s must be string", name);
- return StringValue(strdup(""));
+ return StringValue("");
}
if (ranges->type != VAL_STRING) {
ErrorAbort(state, kArgsParsingFailure, "ranges argument to %s must be string", name);
- return StringValue(strdup(""));
+ return StringValue("");
}
// Output notice to log when recover is attempted
- fprintf(stderr, "%s image corrupted, attempting to recover...\n", filename->data);
+ fprintf(stderr, "%s image corrupted, attempting to recover...\n", filename->data.c_str());
// When opened with O_RDWR, libfec rewrites corrupted blocks when they are read
- fec::io fh(filename->data, O_RDWR);
+ fec::io fh(filename->data.c_str(), O_RDWR);
if (!fh) {
- ErrorAbort(state, kLibfecFailure, "fec_open \"%s\" failed: %s", filename->data,
+ ErrorAbort(state, kLibfecFailure, "fec_open \"%s\" failed: %s", filename->data.c_str(),
strerror(errno));
- return StringValue(strdup(""));
+ return StringValue("");
}
if (!fh.has_ecc() || !fh.has_verity()) {
ErrorAbort(state, kLibfecFailure, "unable to use metadata to correct errors");
- return StringValue(strdup(""));
+ return StringValue("");
}
fec_status status;
if (!fh.get_status(status)) {
ErrorAbort(state, kLibfecFailure, "failed to read FEC status");
- return StringValue(strdup(""));
+ return StringValue("");
}
RangeSet rs;
@@ -1885,8 +1877,8 @@
if (fh.pread(buffer, BLOCKSIZE, (off64_t)j * BLOCKSIZE) != BLOCKSIZE) {
ErrorAbort(state, kLibfecFailure, "failed to recover %s (block %zu): %s",
- filename->data, j, strerror(errno));
- return StringValue(strdup(""));
+ filename->data.c_str(), j, strerror(errno));
+ return StringValue("");
}
// If we want to be able to recover from a situation where rewriting a corrected
@@ -1901,8 +1893,8 @@
// read and check if the errors field value has increased.
}
}
- fprintf(stderr, "...%s image recovered successfully.\n", filename->data);
- return StringValue(strdup("t"));
+ fprintf(stderr, "...%s image recovered successfully.\n", filename->data.c_str());
+ return StringValue("t");
}
void RegisterBlockImageFunctions() {
diff --git a/updater/install.cpp b/updater/install.cpp
index 3546968..d723b38 100644
--- a/updater/install.cpp
+++ b/updater/install.cpp
@@ -116,7 +116,7 @@
//
// fs_type="ext4" partition_type="EMMC" location=device
Value* MountFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* result = NULL;
+ char* result = nullptr;
if (argc != 4 && argc != 5) {
return ErrorAbort(state, kArgsParsingFailure, "%s() expects 4-5 args, got %d", name, argc);
}
@@ -197,7 +197,7 @@
// is_mounted(mount_point)
Value* IsMountedFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* result = NULL;
+ char* result = nullptr;
if (argc != 1) {
return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc);
}
@@ -227,7 +227,7 @@
Value* UnmountFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* result = NULL;
+ char* result = nullptr;
if (argc != 1) {
return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc);
}
@@ -284,7 +284,7 @@
// if fs_size > 0, that is the size to use
// if fs_size < 0, then reserve that many bytes at the end of the partition (not for "f2fs")
Value* FormatFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* result = NULL;
+ char* result = nullptr;
if (argc != 5) {
return ErrorAbort(state, kArgsParsingFailure, "%s() expects 5 args, got %d", name, argc);
}
@@ -358,7 +358,7 @@
}
Value* RenameFn(const char* name, State* state, int argc, Expr* argv[]) {
- char* result = NULL;
+ char* result = nullptr;
if (argc != 2) {
return ErrorAbort(state, kArgsParsingFailure, "%s() expects 2 args, got %d", name, argc);
}
@@ -397,15 +397,10 @@
}
Value* DeleteFn(const char* name, State* state, int argc, Expr* argv[]) {
- char** paths = reinterpret_cast<char**>(malloc(argc * sizeof(char*)));
+ std::vector<std::string> paths;
for (int i = 0; i < argc; ++i) {
- paths[i] = Evaluate(state, argv[i]);
- if (paths[i] == NULL) {
- for (int j = 0; j < i; ++j) {
- free(paths[j]);
- }
- free(paths);
- return NULL;
+ if (!Evaluate(state, argv[i], &paths[i])) {
+ return nullptr;
}
}
@@ -413,15 +408,12 @@
int success = 0;
for (int i = 0; i < argc; ++i) {
- if ((recursive ? dirUnlinkHierarchy(paths[i]) : unlink(paths[i])) == 0)
+ if ((recursive ? dirUnlinkHierarchy(paths[i].c_str()) : unlink(paths[i].c_str())) == 0) {
++success;
- free(paths[i]);
+ }
}
- free(paths);
- char buffer[10];
- sprintf(buffer, "%d", success);
- return StringValue(strdup(buffer));
+ return StringValue(android::base::StringPrintf("%d", success));
}
@@ -483,7 +475,7 @@
NULL, NULL, sehandle);
free(zip_path);
free(dest_path);
- return StringValue(strdup(success ? "t" : ""));
+ return StringValue(success ? "t" : "");
}
@@ -536,7 +528,7 @@
done2:
free(zip_path);
free(dest_path);
- return StringValue(strdup(success ? "t" : ""));
+ return StringValue(success ? "t" : "");
} else {
// The one-argument version returns the contents of the file
// as the result.
@@ -544,10 +536,7 @@
char* zip_path;
if (ReadArgs(state, argv, 1, &zip_path) < 0) return NULL;
- Value* v = reinterpret_cast<Value*>(malloc(sizeof(Value)));
- v->type = VAL_BLOB;
- v->size = -1;
- v->data = NULL;
+ Value* v = new Value(VAL_INVALID, "");
ZipArchive* za = ((UpdaterInfo*)(state->cookie))->package_zip;
const ZipEntry* entry = mzFindZipEntry(za, zip_path);
@@ -556,23 +545,16 @@
goto done1;
}
- v->size = mzGetZipEntryUncompLen(entry);
- v->data = reinterpret_cast<char*>(malloc(v->size));
- if (v->data == NULL) {
- printf("%s: failed to allocate %zd bytes for %s\n",
- name, v->size, zip_path);
- goto done1;
- }
-
+ v->data.resize(mzGetZipEntryUncompLen(entry));
success = mzExtractZipEntryToBuffer(za, entry,
- (unsigned char *)v->data);
+ reinterpret_cast<unsigned char *>(&v->data[0]));
done1:
free(zip_path);
if (!success) {
- free(v->data);
- v->data = NULL;
- v->size = -1;
+ v->data.clear();
+ } else {
+ v->type = VAL_BLOB;
}
return v;
}
@@ -584,13 +566,13 @@
if (argc == 0) {
return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1+ args, got %d", name, argc);
}
- char* target;
- target = Evaluate(state, argv[0]);
- if (target == NULL) return NULL;
+ std::string target;
+ if (!Evaluate(state, argv[0], &target)) {
+ return nullptr;
+ }
char** srcs = ReadVarArgs(state, argc-1, argv+1);
if (srcs == NULL) {
- free(target);
return NULL;
}
@@ -606,12 +588,12 @@
}
if (make_parents(srcs[i])) {
printf("%s: failed to symlink %s to %s: making parents failed\n",
- name, srcs[i], target);
+ name, srcs[i], target.c_str());
++bad;
}
- if (symlink(target, srcs[i]) < 0) {
+ if (symlink(target.c_str(), srcs[i]) < 0) {
printf("%s: failed to symlink %s to %s: %s\n",
- name, srcs[i], target, strerror(errno));
+ name, srcs[i], target.c_str(), strerror(errno));
++bad;
}
free(srcs[i]);
@@ -620,7 +602,7 @@
if (bad) {
return ErrorAbort(state, kSymlinkFailure, "%s: some symlinks failed", name);
}
- return StringValue(strdup(""));
+ return StringValue("");
}
struct perm_parsed_args {
@@ -883,20 +865,20 @@
return ErrorAbort(state, kSetMetadataFailure, "%s: some changes failed", name);
}
- return StringValue(strdup(""));
+ return StringValue("");
}
Value* GetPropFn(const char* name, State* state, int argc, Expr* argv[]) {
if (argc != 1) {
return ErrorAbort(state, kArgsParsingFailure, "%s() expects 1 arg, got %d", name, argc);
}
- char* key = Evaluate(state, argv[0]);
- if (key == NULL) return NULL;
-
+ std::string key;
+ if (!Evaluate(state, argv[0], &key)) {
+ return nullptr;
+ }
std::string value = android::base::GetProperty(key, "");
- free(key);
- return StringValue(strdup(value.c_str()));
+ return StringValue(value);
}
@@ -1015,7 +997,7 @@
return nullptr;
}
- return StringValue(strdup(CacheSizeCheck(bytes) ? "" : "t"));
+ return StringValue(CacheSizeCheck(bytes) ? "" : "t");
}
// apply_patch(file, size, init_sha1, tgt_sha1, patch)
@@ -1047,17 +1029,16 @@
}
int patchcount = (argc-4) / 2;
- std::unique_ptr<Value*, decltype(&free)> arg_values(ReadValueVarArgs(state, argc-4, argv+4),
- free);
+ std::unique_ptr<Value*> arg_values(ReadValueVarArgs(state, argc-4, argv+4));
if (!arg_values) {
return nullptr;
}
- std::vector<std::unique_ptr<Value, decltype(&FreeValue)>> patch_shas;
- std::vector<std::unique_ptr<Value, decltype(&FreeValue)>> patches;
+ std::vector<std::unique_ptr<Value>> patch_shas;
+ std::vector<std::unique_ptr<Value>> patches;
// Protect values by unique_ptrs first to get rid of memory leak.
for (int i = 0; i < patchcount * 2; i += 2) {
- patch_shas.emplace_back(arg_values.get()[i], FreeValue);
- patches.emplace_back(arg_values.get()[i+1], FreeValue);
+ patch_shas.emplace_back(arg_values.get()[i]);
+ patches.emplace_back(arg_values.get()[i+1]);
}
for (int i = 0; i < patchcount; ++i) {
@@ -1071,7 +1052,7 @@
}
}
- std::vector<char*> patch_sha_str;
+ std::vector<std::string> patch_sha_str;
std::vector<Value*> patch_ptrs;
for (int i = 0; i < patchcount; ++i) {
patch_sha_str.push_back(patch_shas[i]->data);
@@ -1080,9 +1061,9 @@
int result = applypatch(source_filename, target_filename,
target_sha1, target_size,
- patchcount, patch_sha_str.data(), patch_ptrs.data(), NULL);
+ patch_sha_str, patch_ptrs.data(), NULL);
- return StringValue(strdup(result == 0 ? "t" : ""));
+ return StringValue(result == 0 ? "t" : "");
}
// apply_patch_check(file, [sha1_1, ...])
@@ -1095,21 +1076,17 @@
char* filename;
if (ReadArgs(state, argv, 1, &filename) < 0) {
- return NULL;
+ return nullptr;
}
- int patchcount = argc-1;
- char** sha1s = ReadVarArgs(state, argc-1, argv+1);
-
- int result = applypatch_check(filename, patchcount, sha1s);
-
- int i;
- for (i = 0; i < patchcount; ++i) {
- free(sha1s[i]);
+ std::vector<std::string> sha1s;
+ if (!ReadArgs(state, argc-1, argv+1, &sha1s)) {
+ return nullptr;
}
- free(sha1s);
- return StringValue(strdup(result == 0 ? "t" : ""));
+ int result = applypatch_check(filename, sha1s);
+
+ return StringValue(result == 0 ? "t" : "");
}
// This is the updater side handler for ui_print() in edify script. Contents
@@ -1129,7 +1106,7 @@
buffer += "\n";
uiPrint(state, buffer);
- return StringValue(strdup(buffer.c_str()));
+ return StringValue(buffer);
}
Value* WipeCacheFn(const char* name, State* state, int argc, Expr* argv[]) {
@@ -1137,7 +1114,7 @@
return ErrorAbort(state, kArgsParsingFailure, "%s() expects no args, got %d", name, argc);
}
fprintf(((UpdaterInfo*)(state->cookie))->cmd_pipe, "wipe_cache\n");
- return StringValue(strdup("t"));
+ return StringValue("t");
}
Value* RunProgramFn(const char* name, State* state, int argc, Expr* argv[]) {
@@ -1180,10 +1157,7 @@
free(args);
free(args2);
- char buffer[20];
- sprintf(buffer, "%d", status);
-
- return StringValue(strdup(buffer));
+ return StringValue(android::base::StringPrintf("%d", status));
}
// sha1_check(data)
@@ -1199,32 +1173,32 @@
return ErrorAbort(state, kArgsParsingFailure, "%s() expects at least 1 arg", name);
}
- std::unique_ptr<Value*, decltype(&free)> arg_values(ReadValueVarArgs(state, argc, argv), free);
+ std::unique_ptr<Value*> arg_values(ReadValueVarArgs(state, argc, argv));
if (arg_values == nullptr) {
return nullptr;
}
- std::vector<std::unique_ptr<Value, decltype(&FreeValue)>> args;
+ std::vector<std::unique_ptr<Value>> args;
for (int i = 0; i < argc; ++i) {
- args.emplace_back(arg_values.get()[i], FreeValue);
+ args.emplace_back(arg_values.get()[i]);
}
- if (args[0]->size < 0) {
- return StringValue(strdup(""));
+ if (args[0]->type == VAL_INVALID) {
+ return StringValue("");
}
uint8_t digest[SHA_DIGEST_LENGTH];
- SHA1(reinterpret_cast<uint8_t*>(args[0]->data), args[0]->size, digest);
+ SHA1(reinterpret_cast<const uint8_t*>(args[0]->data.c_str()), args[0]->data.size(), digest);
if (argc == 1) {
- return StringValue(strdup(print_sha1(digest).c_str()));
+ return StringValue(print_sha1(digest));
}
for (int i = 1; i < argc; ++i) {
uint8_t arg_digest[SHA_DIGEST_LENGTH];
if (args[i]->type != VAL_STRING) {
printf("%s(): arg %d is not a string; skipping", name, i);
- } else if (ParseSha1(args[i]->data, arg_digest) != 0) {
+ } else if (ParseSha1(args[i]->data.c_str(), arg_digest) != 0) {
// Warn about bad args and skip them.
- printf("%s(): error parsing \"%s\" as sha-1; skipping", name, args[i]->data);
+ printf("%s(): error parsing \"%s\" as sha-1; skipping", name, args[i]->data.c_str());
} else if (memcmp(digest, arg_digest, SHA_DIGEST_LENGTH) == 0) {
// Found a match.
return args[i].release();
@@ -1232,7 +1206,7 @@
}
// Didn't match any of the hex strings; return false.
- return StringValue(strdup(""));
+ return StringValue("");
}
// Read a local file and return its contents (the Value* returned
@@ -1244,21 +1218,12 @@
char* filename;
if (ReadArgs(state, argv, 1, &filename) < 0) return NULL;
- Value* v = static_cast<Value*>(malloc(sizeof(Value)));
- if (v == nullptr) {
- return nullptr;
- }
- v->type = VAL_BLOB;
- v->size = -1;
- v->data = nullptr;
+ Value* v = new Value(VAL_INVALID, "");
FileContents fc;
if (LoadFileContents(filename, &fc) == 0) {
- v->data = static_cast<char*>(malloc(fc.data.size()));
- if (v->data != nullptr) {
- memcpy(v->data, fc.data.data(), fc.data.size());
- v->size = fc.data.size();
- }
+ v->type = VAL_BLOB;
+ v->data = std::string(fc.data.begin(), fc.data.end());
}
free(filename);
return v;
@@ -1326,16 +1291,19 @@
// package installation.
FILE* f = ota_fopen(filename, "r+b");
fseek(f, offsetof(struct bootloader_message, stage), SEEK_SET);
- int to_write = strlen(stagestr)+1;
- int max_size = sizeof(((struct bootloader_message*)0)->stage);
+ size_t to_write = strlen(stagestr) + 1;
+ size_t max_size = sizeof(((struct bootloader_message*)0)->stage);
if (to_write > max_size) {
to_write = max_size;
- stagestr[max_size-1] = 0;
+ stagestr[max_size - 1] = 0;
}
- ota_fwrite(stagestr, to_write, 1, f);
+ size_t status = ota_fwrite(stagestr, to_write, 1, f);
ota_fclose(f);
free(stagestr);
+ if (status != to_write) {
+ return StringValue("");
+ }
return StringValue(filename);
}
@@ -1352,11 +1320,14 @@
char buffer[sizeof(((struct bootloader_message*)0)->stage)];
FILE* f = ota_fopen(filename, "rb");
fseek(f, offsetof(struct bootloader_message, stage), SEEK_SET);
- ota_fread(buffer, sizeof(buffer), 1, f);
+ size_t status = ota_fread(buffer, sizeof(buffer), 1, f);
ota_fclose(f);
- buffer[sizeof(buffer)-1] = '\0';
+ if (status != sizeof(buffer)) {
+ return StringValue("");
+ }
- return StringValue(strdup(buffer));
+ buffer[sizeof(buffer)-1] = '\0';
+ return StringValue(buffer);
}
Value* WipeBlockDeviceFn(const char* name, State* state, int argc, Expr* argv[]) {
@@ -1378,7 +1349,7 @@
ota_close(fd);
- return StringValue(strdup(success ? "t" : ""));
+ return StringValue(success ? "t" : "");
}
Value* EnableRebootFn(const char* name, State* state, int argc, Expr* argv[]) {
@@ -1387,7 +1358,7 @@
}
UpdaterInfo* ui = (UpdaterInfo*)(state->cookie);
fprintf(ui->cmd_pipe, "enable_reboot\n");
- return StringValue(strdup("t"));
+ return StringValue("t");
}
Value* Tune2FsFn(const char* name, State* state, int argc, Expr* argv[]) {
@@ -1418,7 +1389,7 @@
return ErrorAbort(state, kTune2FsFailure, "%s() returned error code %d",
name, result);
}
- return StringValue(strdup("t"));
+ return StringValue("t");
}
void RegisterInstallFunctions() {
diff --git a/updater/updater.cpp b/updater/updater.cpp
index c752ebb..47696b8 100644
--- a/updater/updater.cpp
+++ b/updater/updater.cpp
@@ -151,13 +151,14 @@
}
}
- char* result = Evaluate(&state, root);
+ std::string result;
+ bool status = Evaluate(&state, root, &result);
if (have_eio_error) {
fprintf(cmd_pipe, "retry_update\n");
}
- if (result == NULL) {
+ if (!status) {
if (state.errmsg.empty()) {
printf("script aborted (no error message)\n");
fprintf(cmd_pipe, "ui_print script aborted (no error message)\n");
@@ -188,8 +189,7 @@
return 7;
} else {
- fprintf(cmd_pipe, "ui_print script succeeded: result was [%s]\n", result);
- free(result);
+ fprintf(cmd_pipe, "ui_print script succeeded: result was [%s]\n", result.c_str());
}
if (updater_info.package_zip) {