34 lines
1.1 KiB
Diff
34 lines
1.1 KiB
Diff
From ba4c3a6f988beff59e45801ab36067293d24ce92 Mon Sep 17 00:00:00 2001
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From: Patrick Griffis <pgriffis@igalia.com>
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Date: Wed, 8 Jan 2025 16:30:17 -0600
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Subject: [PATCH] content-sniffer: Handle sniffing resource shorter than 4
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bytes
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---
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libsoup/content-sniffer/soup-content-sniffer.c | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/libsoup/content-sniffer/soup-content-sniffer.c b/libsoup/content-sniffer/soup-content-sniffer.c
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index 5a181ff1..aeee2e25 100644
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--- a/libsoup/content-sniffer/soup-content-sniffer.c
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+++ b/libsoup/content-sniffer/soup-content-sniffer.c
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@@ -243,9 +243,14 @@ sniff_mp4 (SoupContentSniffer *sniffer, GBytes *buffer)
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gsize resource_length;
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const char *resource = g_bytes_get_data (buffer, &resource_length);
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resource_length = MIN (512, resource_length);
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- guint32 box_size = *((guint32*)resource);
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+ guint32 box_size;
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guint i;
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+ if (resource_length < sizeof (guint32))
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+ return FALSE;
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+
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+ box_size = *((guint32*)resource);
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+
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#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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box_size = ((box_size >> 24) |
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((box_size << 8) & 0x00FF0000) |
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--
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2.49.0
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