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(trans_stream_zlib.c) Add some early returns in case it's a NULL pointer

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This commit is contained in:
twinaphex 2017-01-22 20:04:58 +01:00
parent 5c77937dad
commit 4feab7a268
1 changed files with 21 additions and 6 deletions
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27
libretro-common/streams/trans_stream_zlib.c
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@ -60,6 +60,8 @@ static void zlib_deflate_stream_free(void *data)
static void zlib_inflate_stream_free(void *data)
{
struct zlib_trans_stream *z = (struct zlib_trans_stream *) data;
if (!z)
return;
if (z->inited)
inflateEnd(&z->z);
free(z);
@ -90,8 +92,13 @@ static bool zlib_inflate_define(void *data, const char *prop, uint32_t val)
static void zlib_deflate_set_in(void *data, const uint8_t *in, uint32_t in_size)
{
struct zlib_trans_stream *z = (struct zlib_trans_stream *) data;
z->z.next_in = (uint8_t *) in;
z->z.avail_in = in_size;
if (!z)
return;
z->z.next_in = (uint8_t *) in;
z->z.avail_in = in_size;
if (!z->inited)
{
deflateInit(&z->z, z->ex);
@ -102,8 +109,12 @@ static void zlib_deflate_set_in(void *data, const uint8_t *in, uint32_t in_size)
static void zlib_inflate_set_in(void *data, const uint8_t *in, uint32_t in_size)
{
struct zlib_trans_stream *z = (struct zlib_trans_stream *) data;
z->z.next_in = (uint8_t *) in;
z->z.avail_in = in_size;
if (!z)
return;
z->z.next_in = (uint8_t *) in;
z->z.avail_in = in_size;
if (!z->inited)
{
inflateInit2(&z->z, z->ex);
@ -114,8 +125,12 @@ static void zlib_inflate_set_in(void *data, const uint8_t *in, uint32_t in_size)
static void zlib_set_out(void *data, uint8_t *out, uint32_t out_size)
{
struct zlib_trans_stream *z = (struct zlib_trans_stream *) data;
z->z.next_out = out;
z->z.avail_out = out_size;
if (!z)
return;
z->z.next_out = out;
z->z.avail_out = out_size;
}
static bool zlib_deflate_trans(