storage-backups/PlayIntegrityFix
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update xread, xwrite

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chiteroman 2025-01-20 22:53:51 +01:00
parent 5b56f6d0c4
commit 25ed3f00f4
1 changed files with 40 additions and 8 deletions
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48
app/src/main/cpp/main.cpp
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@ -16,29 +16,61 @@
#define TS_PATH "/data/adb/modules/tricky_store" #define TS_PATH "/data/adb/modules/tricky_store"
static ssize_t xread(int fd, void *buffer, size_t count) { static inline ssize_t xread(int fd, void *buffer, size_t count) {
auto *buf = static_cast<char *>(buffer);
ssize_t total = 0; ssize_t total = 0;
char *buf = (char *) buffer;
while (count > 0) { while (count > 0) {
ssize_t ret = TEMP_FAILURE_RETRY(read(fd, buf, count)); ssize_t ret = read(fd, buf, count);
if (ret < 0) return -1;
if (ret < 0) {
// Retry if interrupted
if (errno == EINTR) {
continue;
}
return -1;
}
// If 0, we've hit EOF (read no more data)
if (ret == 0) {
break;
}
buf += ret; buf += ret;
total += ret; total += ret;
count -= ret; count -= ret;
} }
return total; return total;
} }
static ssize_t xwrite(int fd, const void *buffer, size_t count) { static inline ssize_t xwrite(int fd, const void *buffer, size_t count) {
auto *buf = static_cast<const char *>(buffer);
ssize_t total = 0; ssize_t total = 0;
char *buf = (char *) buffer;
while (count > 0) { while (count > 0) {
ssize_t ret = TEMP_FAILURE_RETRY(write(fd, buf, count)); ssize_t ret = write(fd, buf, count);
if (ret < 0) return -1;
if (ret < 0) {
// Retry if interrupted
if (errno == EINTR) {
continue;
}
return -1;
}
// Technically, write returning 0 is unusual (e.g., disk full); handle it if needed
if (ret == 0) {
break;
}
buf += ret; buf += ret;
total += ret; total += ret;
count -= ret; count -= ret;
} }
return total; return total;
} }