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Backport libgd commit

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Source - f6a111c632
Related to https://github.com/php/php-src/pull/5127#issuecomment-884032991
This commit is contained in:
Andy Postnikov 2021-07-22 00:59:05 +03:00 committed by Nikita Popov
parent 9e787d51b5
commit bb9ef2bedb
1 changed files with 11 additions and 6 deletions
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17
ext/gd/libgd/gd_avif.c
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@ -142,7 +142,7 @@ static avifBool isAvifSrgbImage(avifImage *avifIm) {
*/
static avifBool isAvifError(avifResult result, const char *msg) {
if (result != AVIF_RESULT_OK) {
gd_error("avif error - %s: %s", msg, avifResultToString(result));
gd_error("avif error - %s: %s\n", msg, avifResultToString(result));
return AVIF_TRUE;
}
@ -168,13 +168,18 @@ static avifResult readFromCtx(avifIO *io, uint32_t readFlags, uint64_t offset, s
void *dataBuf = NULL;
gdIOCtx *ctx = (gdIOCtx *) io->data;
// readFlags is unsupported
if (readFlags != 0) {
return AVIF_RESULT_IO_ERROR;
}
// TODO: if we set sizeHint, this will be more efficient.
if (offset > LONG_MAX || size < 0)
if (offset > INT_MAX || size > INT_MAX)
return AVIF_RESULT_IO_ERROR;
// Try to seek offset bytes forward. If we pass the end of the buffer, throw an error.
if (!ctx->seek(ctx, offset))
if (!ctx->seek(ctx, (int) offset))
return AVIF_RESULT_IO_ERROR;
dataBuf = avifAlloc(size);
@ -185,7 +190,7 @@ static avifResult readFromCtx(avifIO *io, uint32_t readFlags, uint64_t offset, s
// Read the number of bytes requested.
// If getBuf() returns a negative value, that means there was an error.
int charsRead = ctx->getBuf(ctx, dataBuf, size);
int charsRead = ctx->getBuf(ctx, dataBuf, (int) size);
if (charsRead < 0) {
avifFree(dataBuf);
return AVIF_RESULT_IO_ERROR;
@ -330,7 +335,7 @@ gdImagePtr gdImageCreateFromAvifPtr(int size, void *data)
*/
gdImagePtr gdImageCreateFromAvifCtx (gdIOCtx *ctx)
{
int x, y;
uint32_t x, y;
gdImage *im = NULL;
avifResult result;
avifIO *io;
@ -465,7 +470,7 @@ void gdImageAvifCtx(gdImagePtr im, gdIOCtx *outfile, int quality, int speed)
uint32_t val;
uint8_t *p;
int x, y;
uint32_t x, y;
if (im == NULL)
return;