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fix potential out of bound array access in Button_Layer_add()

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Thomas Bernard 2018-11-26 22:46:35 +01:00
parent d47bd55eda
commit 53296293ee
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GPG Key ID: 0FF11B67A5C0863C
1 changed files with 14 additions and 2 deletions
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16
src/layers.c
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@ -106,11 +106,23 @@ void Layer_activate(int layer, short side)
void Button_Layer_add(void) void Button_Layer_add(void)
{ {
int max[] = {MAX_NB_LAYERS, MAX_NB_FRAMES, 5}; int max;
Hide_cursor(); Hide_cursor();
if (Main.backups->Pages->Nb_layers < max[Main.backups->Pages->Image_mode]) switch (Main.backups->Pages->Image_mode)
{
case IMAGE_MODE_LAYERED:
max = MAX_NB_LAYERS;
break;
case IMAGE_MODE_ANIMATION:
max = MAX_NB_FRAMES;
break;
default:
max = 5;
}
if (Main.backups->Pages->Nb_layers < max)
{ {
// Backup with unchanged layers // Backup with unchanged layers
Backup_layers(LAYER_NONE); Backup_layers(LAYER_NONE);