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buffer overflow check + error message

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This commit is contained in:
Slider0007
2023-02-02 00:01:41 +01:00
parent d40d5ba0f6
commit 939271f2a0
1 changed files with 39 additions and 23 deletions
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54
code/components/jomjol_image_proc/CImageBasis.cpp
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@@ -18,6 +18,9 @@ using namespace std;
static const char *TAG = "C IMG BASIS";
bool jpgFileTooLarge = false; // JPG creation verfication
//#define DEBUG_DETAIL_ON
@@ -63,6 +66,8 @@ void writejpghelp(void *context, void *data, int size)
ImageData* _zw = (ImageData*) context;
uint8_t *voidstart = _zw->data;
uint8_t *datastart = (uint8_t*) data;
if ((_zw->size < MAX_JPG_SIZE)) { // Abort copy -> no buffer anymore
voidstart += _zw->size;
for (int i = 0; i < size; ++i)
@@ -70,6 +75,10 @@ void writejpghelp(void *context, void *data, int size)
_zw->size += size;
}
else {
jpgFileTooLarge = true;
}
}
ImageData* CImageBasis::writeToMemoryAsJPG(const int quality)
@@ -80,6 +89,10 @@ ImageData* CImageBasis::writeToMemoryAsJPG(const int quality)
stbi_write_jpg_to_func(writejpghelp, ii, width, height, channels, rgb_image, quality);
RGBImageRelease();
if (jpgFileTooLarge) {
jpgFileTooLarge = false;
LogFile.WriteToFile(ESP_LOG_ERROR, TAG, "writeToMemoryAsJPG: JPG creation aborted! Preallocated buffer not sufficient: " + std::to_string(MAX_JPG_SIZE));
}
return ii;
}
@@ -92,6 +105,10 @@ void CImageBasis::writeToMemoryAsJPG(ImageData* i, const int quality)
stbi_write_jpg_to_func(writejpghelp, ii, width, height, channels, rgb_image, quality);
RGBImageRelease();
if (jpgFileTooLarge) {
jpgFileTooLarge = false;
LogFile.WriteToFile(ESP_LOG_ERROR, TAG, "writeToMemoryAsJPG: JPG creation aborted! Preallocated buffer not sufficient: " + std::to_string(MAX_JPG_SIZE));
}
memCopy((uint8_t*) ii, (uint8_t*) i, sizeof(ImageData));
delete ii;
}
@@ -364,7 +381,7 @@ void CImageBasis::CreateEmptyImage(int _width, int _height, int _channels)
RGBImageLock();
#ifdef DEBUG_DETAIL_ON
LogFile.WriteHeapInfo("CImageBasis::CreateEmptyImage");
LogFile.WriteHeapInfo("CreateEmptyImage");
#endif
int memsize = width * height * channels;
@@ -372,9 +389,8 @@ void CImageBasis::CreateEmptyImage(int _width, int _height, int _channels)
if (rgb_image == NULL)
{
//ESP_LOGE(TAG, "CImageBasis::CreateEmptyImage: No more free memory!! Needed: %d %d %d %d", width, height, channels, memsize);
LogFile.WriteToFile(ESP_LOG_ERROR, TAG, "CImageBasis::CreateEmptyImage: Can't allocate enough memory: " + std::to_string(memsize));
LogFile.WriteHeapInfo("CImageBasis::CreateEmptyImage");
LogFile.WriteToFile(ESP_LOG_ERROR, TAG, "CreateEmptyImage: Can't allocate enough memory: " + std::to_string(memsize));
LogFile.WriteHeapInfo("CreateEmptyImage");
RGBImageRelease();
return;
}
@@ -396,7 +412,7 @@ void CImageBasis::CreateEmptyImage(int _width, int _height, int _channels)
void CImageBasis::EmptyImage()
{
#ifdef DEBUG_DETAIL_ON
LogFile.WriteHeapInfo("CImageBasis::EmptyImage");
LogFile.WriteHeapInfo("EmptyImage");
#endif
stbi_uc* p_source;
@@ -430,7 +446,7 @@ void CImageBasis::LoadFromMemory(stbi_uc *_buffer, int len)
{
LogFile.WriteToFile(ESP_LOG_ERROR, TAG, "Image with size 0 loaded --> reboot to be done! "
"Check that your camera module is working and connected properly.");
LogFile.WriteHeapInfo("CImageBasis::LoadFromMemory");
LogFile.WriteHeapInfo("LoadFromMemory");
doReboot();
}
@@ -450,7 +466,7 @@ CImageBasis::CImageBasis(CImageBasis *_copyfrom)
RGBImageLock();
#ifdef DEBUG_DETAIL_ON
LogFile.WriteHeapInfo("CImageBasis::CImageBasis_copyfrom - Start");
LogFile.WriteHeapInfo("CImageBasis_copyfrom - Start");
#endif
int memsize = width * height * channels;
@@ -458,8 +474,8 @@ CImageBasis::CImageBasis(CImageBasis *_copyfrom)
if (rgb_image == NULL)
{
LogFile.WriteToFile(ESP_LOG_ERROR, TAG, "CImageBasis::CImageBasis-Copyfrom: Can't allocate enough memory: " + std::to_string(memsize));
LogFile.WriteHeapInfo("CImageBasis::CImageBasis-Copyfrom");
LogFile.WriteToFile(ESP_LOG_ERROR, TAG, "CImageBasis-Copyfrom: Can't allocate enough memory: " + std::to_string(memsize));
LogFile.WriteHeapInfo("CImageBasis-Copyfrom");
RGBImageRelease();
return;
}
@@ -468,7 +484,7 @@ CImageBasis::CImageBasis(CImageBasis *_copyfrom)
RGBImageRelease();
#ifdef DEBUG_DETAIL_ON
LogFile.WriteHeapInfo("CImageBasis::CImageBasis_copyfrom - done");
LogFile.WriteHeapInfo("CImageBasis_copyfrom - done");
#endif
}
@@ -485,7 +501,7 @@ CImageBasis::CImageBasis(int _width, int _height, int _channels)
RGBImageLock();
#ifdef DEBUG_DETAIL_ON
LogFile.WriteHeapInfo("CImageBasis::CImageBasis_width,height,ch - Start");
LogFile.WriteHeapInfo("CImageBasis_width,height,ch - Start");
#endif
int memsize = width * height * channels;
@@ -493,8 +509,8 @@ CImageBasis::CImageBasis(int _width, int _height, int _channels)
if (rgb_image == NULL)
{
LogFile.WriteToFile(ESP_LOG_ERROR, TAG, "CImageBasis::CImageBasis-width,height,ch: Can't allocate enough memory: " + std::to_string(memsize));
LogFile.WriteHeapInfo("CImageBasis::CImageBasis-width,height,ch");
LogFile.WriteToFile(ESP_LOG_ERROR, TAG, "CImageBasis-width,height,ch: Can't allocate enough memory: " + std::to_string(memsize));
LogFile.WriteHeapInfo("CImageBasis-width,height,ch");
RGBImageRelease();
return;
}
@@ -502,7 +518,7 @@ CImageBasis::CImageBasis(int _width, int _height, int _channels)
RGBImageRelease();
#ifdef DEBUG_DETAIL_ON
LogFile.WriteHeapInfo("CImageBasis::CImageBasis_width,height,ch - done");
LogFile.WriteHeapInfo("CImageBasis_width,height,ch - done");
#endif
}
@@ -522,14 +538,14 @@ CImageBasis::CImageBasis(std::string _image)
RGBImageLock();
#ifdef DEBUG_DETAIL_ON
LogFile.WriteHeapInfo("CImageBasis::CImageBasis_image - Start");
LogFile.WriteHeapInfo("CImageBasis_image - Start");
#endif
rgb_image = stbi_load(_image.c_str(), &width, &height, &bpp, channels);
if (rgb_image == NULL) {
LogFile.WriteToFile(ESP_LOG_ERROR, TAG, "CImageBasis::CImageBasis-image: Failed to load " + _image + "! Is it corrupted?");
LogFile.WriteHeapInfo("CImageBasis::CImageBasis-image");
LogFile.WriteToFile(ESP_LOG_ERROR, TAG, "CImageBasis-image: Failed to load " + _image + "! Is it corrupted?");
LogFile.WriteHeapInfo("CImageBasis-image");
RGBImageRelease();
return;
}
@@ -543,7 +559,7 @@ CImageBasis::CImageBasis(std::string _image)
#endif
#ifdef DEBUG_DETAIL_ON
LogFile.WriteHeapInfo("CImageBasis::CImageBasis_image - done");
LogFile.WriteHeapInfo("CImageBasis_image - done");
#endif
}
@@ -643,7 +659,7 @@ void CImageBasis::Resize(int _new_dx, int _new_dy, CImageBasis *_target)
{
if ((_target->height != _new_dy) || (_target->width != _new_dx) || (_target->channels != channels))
{
ESP_LOGE(TAG, "CImageBasis::Resize - Target image size does not fit!");
ESP_LOGE(TAG, "Resize - Target image size does not fit!");
return;
}