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pcapparse: endianness fix

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Also swap the linktype after we detected that we need to do
byteswapping. Fixes a problem with reading pcap files generated
on a machine with different endianness.
This commit is contained in:
Wim Taymans 2017-06-01 16:00:50 +02:00
parent 694da006e0
commit f28ab7ce60
1 changed files with 3 additions and 2 deletions
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5
gst/pcapparse/gstpcapparse.c
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@ -550,14 +550,15 @@ gst_pcap_parse_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
magic = *((guint32 *) data);
major_version = *((guint16 *) (data + 4));
linktype = gst_pcap_parse_read_uint32 (self, data + 20);
linktype = *((guint32 *) (data + 20));
gst_adapter_unmap (self->adapter);
if (magic == 0xa1b2c3d4) {
self->swap_endian = FALSE;
} else if (magic == 0xd4c3b2a1) {
self->swap_endian = TRUE;
major_version = major_version << 8 | major_version >> 8;
major_version = GUINT16_SWAP_LE_BE (major_version);
linktype = GUINT32_SWAP_LE_BE (linktype);
} else {
GST_ELEMENT_ERROR (self, STREAM, WRONG_TYPE, (NULL),
("File is not a libpcap file, magic is %X", magic));