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user32: Make DIB_GetBitmapInfo checks stricter.

This commit is contained in:
Wolfram Sang 2011-02-24 22:12:08 +01:00 committed by Alexandre Julliard
parent 25923d2f16
commit ce5763b88c
2 changed files with 31 additions and 2 deletions
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6
dlls/user32/cursoricon.c
View File

@ -372,7 +372,9 @@ static int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, LONG *width,
*compr = 0;
return 0;
}
else if (header->biSize >= sizeof(BITMAPINFOHEADER))
else if (header->biSize == sizeof(BITMAPINFOHEADER) ||
header->biSize == sizeof(BITMAPV4HEADER) ||
header->biSize == sizeof(BITMAPV5HEADER))
{
*width = header->biWidth;
*height = header->biHeight;
@ -380,7 +382,7 @@ static int DIB_GetBitmapInfo( const BITMAPINFOHEADER *header, LONG *width,
*compr = header->biCompression;
return 1;
}
ERR("(%d): unknown/wrong size for header\n", header->biSize );
WARN("unknown/wrong size (%u) for header\n", header->biSize);
return -1;
}

27
dlls/user32/tests/cursoricon.c
View File

@ -765,6 +765,24 @@ static unsigned char gif4pixel[42] = {
0x02,0x00,0x00,0x02,0x03,0x14,0x16,0x05,0x00,0x3b
};
static const DWORD biSize_tests[] = {
0,
sizeof(BITMAPCOREHEADER) - 1,
sizeof(BITMAPCOREHEADER) + 1,
sizeof(BITMAPINFOHEADER) - 1,
sizeof(BITMAPINFOHEADER) + 1,
sizeof(BITMAPV4HEADER) - 1,
sizeof(BITMAPV4HEADER) + 1,
sizeof(BITMAPV5HEADER) - 1,
sizeof(BITMAPV5HEADER) + 1,
(sizeof(BITMAPCOREHEADER) + sizeof(BITMAPINFOHEADER)) / 2,
(sizeof(BITMAPV4HEADER) + sizeof(BITMAPV5HEADER)) / 2,
0xdeadbeef,
0xffffffff
};
#define ARRAY_SIZE(a) (sizeof(a)/sizeof((a)[0]))
static void test_LoadImageBitmap(const char * test_desc, HBITMAP hbm)
{
BITMAP bm;
@ -856,6 +874,7 @@ static void test_LoadImage(void)
CURSORICONFILEDIRENTRY *icon_entry;
BITMAPINFOHEADER *icon_header, *bitmap_header;
ICONINFO icon_info;
int i;
#define ICON_WIDTH 32
#define ICON_HEIGHT 32
@ -992,8 +1011,16 @@ static void test_LoadImage(void)
bitmap_header->biWidth = 65536;
test_LoadImageFile("BMP (too wide)", bmpimage, sizeof(bmpimage), "bmp", 0);
bitmap_header->biWidth = 1;
for (i = 0; i < ARRAY_SIZE(biSize_tests); i++) {
bitmap_header->biSize = biSize_tests[i];
test_LoadImageFile("BMP (broken biSize)", bmpimage, sizeof(bmpimage), "bmp", 0);
}
bitmap_header->biSize = sizeof(BITMAPINFOHEADER);
}
#undef ARRAY_SIZE
static void test_CreateIconFromResource(void)
{
HANDLE handle;