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Add parameter checkes to FileAccess get_buffer functions

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fix #46540
This commit is contained in:
Alex Hirsch 2021-03-09 02:37:35 +01:00
parent 85cb3c044d
commit cdf3099c68
10 changed files with 26 additions and 3 deletions
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6
core/io/file_access_compressed.cpp
View file

@ -286,8 +286,10 @@ uint8_t FileAccessCompressed::get_8() const {
}
int FileAccessCompressed::get_buffer(uint8_t *p_dst, int p_length) const {
ERR_FAIL_COND_V_MSG(!f, 0, "File must be opened before use.");
ERR_FAIL_COND_V_MSG(writing, 0, "File has not been opened in read mode.");
ERR_FAIL_COND_V(!p_dst, -1);
ERR_FAIL_COND_V(p_length < 0, -1);
ERR_FAIL_COND_V_MSG(!f, -1, "File must be opened before use.");
ERR_FAIL_COND_V_MSG(writing, -1, "File has not been opened in read mode.");
if (at_end) {
read_eof = true;

4
core/io/file_access_encrypted.cpp
View file

@ -237,7 +237,9 @@ uint8_t FileAccessEncrypted::get_8() const {
}
int FileAccessEncrypted::get_buffer(uint8_t *p_dst, int p_length) const {
ERR_FAIL_COND_V_MSG(writing, 0, "File has not been opened in read mode.");
ERR_FAIL_COND_V(!p_dst, -1);
ERR_FAIL_COND_V(p_length < 0, -1);
ERR_FAIL_COND_V_MSG(writing, -1, "File has not been opened in read mode.");
int to_copy = MIN(p_length, data.size() - pos);
for (int i = 0; i < to_copy; i++) {

2
core/io/file_access_memory.cpp
View file

@ -138,6 +138,8 @@ uint8_t FileAccessMemory::get_8() const {
}
int FileAccessMemory::get_buffer(uint8_t *p_dst, int p_length) const {
ERR_FAIL_COND_V(!p_dst, -1);
ERR_FAIL_COND_V(p_length < 0, -1);
ERR_FAIL_COND_V(!data, -1);
int left = length - pos;

3
core/io/file_access_network.cpp
View file

@ -366,6 +366,9 @@ void FileAccessNetwork::_queue_page(int p_page) const {
}
int FileAccessNetwork::get_buffer(uint8_t *p_dst, int p_length) const {
ERR_FAIL_COND_V(!p_dst, -1);
ERR_FAIL_COND_V(p_length < 0, -1);
//bool eof=false;
if (pos + p_length > total_size) {
eof_flag = true;

3
core/io/file_access_pack.cpp
View file

@ -299,6 +299,9 @@ uint8_t FileAccessPack::get_8() const {
}
int FileAccessPack::get_buffer(uint8_t *p_dst, int p_length) const {
ERR_FAIL_COND_V(!p_dst, -1);
ERR_FAIL_COND_V(p_length < 0, -1);
if (eof) {
return 0;
}

2
core/io/file_access_zip.cpp
View file

@ -303,6 +303,8 @@ uint8_t FileAccessZip::get_8() const {
}
int FileAccessZip::get_buffer(uint8_t *p_dst, int p_length) const {
ERR_FAIL_COND_V(!p_dst, -1);
ERR_FAIL_COND_V(p_length < 0, -1);
ERR_FAIL_COND_V(!zfile, -1);
at_eof = unzeof(zfile);
if (at_eof) {

2
core/os/file_access.cpp
View file

@ -368,6 +368,8 @@ Vector<String> FileAccess::get_csv_line(const String &p_delim) const {
}
int FileAccess::get_buffer(uint8_t *p_dst, int p_length) const {
ERR_FAIL_COND_V(!p_dst, -1);
ERR_FAIL_COND_V(p_length < 0, -1);
int i = 0;
for (i = 0; i < p_length && !eof_reached(); i++) {
p_dst[i] = get_8();

2
drivers/unix/file_access_unix.cpp
View file

@ -240,6 +240,8 @@ uint8_t FileAccessUnix::get_8() const {
}
int FileAccessUnix::get_buffer(uint8_t *p_dst, int p_length) const {
ERR_FAIL_COND_V(!p_dst, -1);
ERR_FAIL_COND_V(p_length < 0, -1);
ERR_FAIL_COND_V_MSG(!f, -1, "File must be opened before use.");
int read = fread(p_dst, 1, p_length, f);
check_errors();

2
drivers/windows/file_access_windows.cpp
View file

@ -253,6 +253,8 @@ uint8_t FileAccessWindows::get_8() const {
}
int FileAccessWindows::get_buffer(uint8_t *p_dst, int p_length) const {
ERR_FAIL_COND_V(!p_dst, -1);
ERR_FAIL_COND_V(p_length < 0, -1);
ERR_FAIL_COND_V(!f, -1);
if (flags == READ_WRITE || flags == WRITE_READ) {
if (prev_op == WRITE) {

3
platform/android/file_access_android.cpp
View file

@ -114,6 +114,9 @@ uint8_t FileAccessAndroid::get_8() const {
}
int FileAccessAndroid::get_buffer(uint8_t *p_dst, int p_length) const {
ERR_FAIL_COND_V(!p_dst, -1);
ERR_FAIL_COND_V(p_length < 0, -1);
off_t r = AAsset_read(a, p_dst, p_length);
if (pos + p_length > len) {