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Fix read() and write() usages

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Co-authored-by: Wang Han <416810799@qq.com>
This commit is contained in:
chiteroman 2024-08-13 23:35:51 +02:00
parent afc32ccfa1
commit 92cbae839d
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1 changed files with 34 additions and 8 deletions
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42
app/src/main/cpp/main.cpp
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@ -17,6 +17,32 @@
#define PIF_JSON_DEFAULT "/data/adb/modules/playintegrityfix/pif.json"
static ssize_t xread(int fd, void *buffer, size_t count) {
ssize_t total = 0;
char *buf = (char *) buffer;
while (count > 0) {
ssize_t ret = read(fd, buf, count);
if (ret < 0) return -1;
buf += ret;
total += ret;
count -= ret;
}
return total;
}
static ssize_t xwrite(int fd, void *buffer, size_t count) {
ssize_t total = 0;
char *buf = (char *) buffer;
while (count > 0) {
ssize_t ret = write(fd, buf, count);
if (ret < 0) return -1;
buf += ret;
total += ret;
count -= ret;
}
return total;
}
static std::string DEVICE_INITIAL_SDK_INT;
static std::string SECURITY_PATCH;
static std::string BUILD_ID;
@ -133,17 +159,17 @@ public:
int dexSize = 0, jsonSize = 0;
std::vector<uint8_t> jsonVector;
read(fd, &dexSize, sizeof(int));
read(fd, &jsonSize, sizeof(int));
xread(fd, &dexSize, sizeof(int));
xread(fd, &jsonSize, sizeof(int));
if (dexSize > 0) {
dexVector.resize(dexSize);
read(fd, dexVector.data(), dexSize * sizeof(uint8_t));
xread(fd, dexVector.data(), dexSize * sizeof(uint8_t));
}
if (jsonSize > 0) {
jsonVector.resize(jsonSize);
read(fd, jsonVector.data(), jsonSize * sizeof(uint8_t));
xread(fd, jsonVector.data(), jsonSize * sizeof(uint8_t));
std::string strJson(jsonVector.cbegin(), jsonVector.cend());
json = cJSON_ParseWithLength(strJson.c_str(), strJson.size());
}
@ -269,15 +295,15 @@ static void companion(int fd) {
int dexSize = static_cast<int>(dex.size());
int jsonSize = static_cast<int>(json.size());
write(fd, &dexSize, sizeof(int));
write(fd, &jsonSize, sizeof(int));
xwrite(fd, &dexSize, sizeof(int));
xwrite(fd, &jsonSize, sizeof(int));
if (dexSize > 0) {
write(fd, dex.data(), dexSize * sizeof(uint8_t));
xwrite(fd, dex.data(), dexSize * sizeof(uint8_t));
}
if (jsonSize > 0) {
write(fd, json.data(), jsonSize * sizeof(uint8_t));
xwrite(fd, json.data(), jsonSize * sizeof(uint8_t));
}
}