diff options
Diffstat (limited to 'Build/source/libs/gd/libgd-src/tests/gif/bug00499.c')
-rw-r--r-- | Build/source/libs/gd/libgd-src/tests/gif/bug00499.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/Build/source/libs/gd/libgd-src/tests/gif/bug00499.c b/Build/source/libs/gd/libgd-src/tests/gif/bug00499.c new file mode 100644 index 00000000000..0fedb927ca4 --- /dev/null +++ b/Build/source/libs/gd/libgd-src/tests/gif/bug00499.c @@ -0,0 +1,51 @@ +/** + * Test that adding identical images to GIF animations do no double-free + * + * We are adding two frames to a GIF animation in gdDisposalNone mode, were the + * second frame is identical to the first, which result in that image to have + * zero extent. This program must not cause any memory issues. + * + * See also <https://github.com/libgd/libgd/issues/499>. + */ + + +#include "gd.h" +#include "gdtest.h" + + +int main() +{ + gdImagePtr im; + int black; + int size; + void * res; + + im = gdImageCreate(100, 100); + black = gdImageColorAllocate(im, 0, 0, 0); + gdImageRectangle(im, 0, 0, 10, 10, black); + + res = gdImageGifAnimBeginPtr(im, &size, 1, 3); + if (res != NULL) { + gdFree(res); + } + + res = gdImageGifAnimAddPtr(im, &size, 0, 0, 0, 100, gdDisposalNone, NULL); + if (res != NULL) { + gdFree(res); + } + + res = gdImageGifAnimAddPtr(im, &size, 0, 0, 0, 100, gdDisposalNone, im); + gdTestAssert(res == NULL); + if (res != NULL) { + gdFree(res); + } + + res = gdImageGifAnimEndPtr(&size); + if (res != NULL) { + gdFree(res); + } + + gdImageDestroy(im); + + return gdNumFailures(); +} |