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-rw-r--r--wiretap/mp4.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/wiretap/mp4.c b/wiretap/mp4.c
index 1ad140dc71..36a43a71b6 100644
--- a/wiretap/mp4.c
+++ b/wiretap/mp4.c
@@ -15,6 +15,8 @@
#include "wtap-int.h"
static const guint8 mp4_magic[] = { 'f', 't', 'y', 'p' };
+static const guint8 mp4_magic_sidx[] = { 's', 'i', 'd', 'x' };
+static const guint8 mp4_magic_styp[] = { 's', 't', 'y', 'p' };
static int mp4_file_type_subtype = -1;
@@ -36,7 +38,9 @@ mp4_open(wtap *wth, int *err, gchar **err_info)
return WTAP_OPEN_NOT_MINE;
if (bytes_read == sizeof (magic_buf) &&
- memcmp(magic_buf + 4, mp4_magic, sizeof (mp4_magic)))
+ memcmp(magic_buf + 4, mp4_magic, sizeof (mp4_magic)) &&
+ memcmp(magic_buf + 4, mp4_magic_sidx, sizeof (mp4_magic_sidx)) &&
+ memcmp(magic_buf + 4, mp4_magic_styp, sizeof (mp4_magic_styp)))
return WTAP_OPEN_NOT_MINE;
if (file_seek(wth->fh, 0, SEEK_SET, err) == -1)