neatly aligned on a 2-byte or a 4-byte boundary, and there is no
guarantee that a misaligned pointer can be dereferenced without getting
a fault.
Furthermore, there is no guarantee that, even if you *can* dereference a
pointer to a 2-byte or 4-byte quantity in a packet, the resulting number
you get back is in the right byte order; the data in the packet might
have a different byte order from the machine on which you're running.
Therefore, we change "prs_uint8s()", "prs_uint16s()", and
"prs_uint32s()" to return the starting offset, in the tvbuff, of the
collection of 8-bit, 16-bit, or 32-bit integral values, rather than a
pointer to the raw packet data, and change their callers to fetch the
data using "tvb_get_guint8()", "tvb_get_letohs()", and
"tvb_get_letohl()" (the stuff in all the NT protocols is presumed to be
little-endian here). We also change "fake_unicode()" to take a tvbuff
and an offset, rather than a data pointer, as arguments, and to use
"tvb_get_letohs()" to fetch the Unicode characters (again, we assume
little-endian Unicode).
This requires "fake_unicode()" to establish a cleanup handler, so we
don't leak memory if it throws an exception.
We also make "fake_unicode()" use "g_malloc()" to allocate its buffer
(we weren't checking for allocation failures in any case; with
"g_malloc()", we'll abort on an allocation failure - if we can come up
with a cleverer way of handling them, fine), and the matching frees to
use "g_free()". (We also insert some missing frees....)
Fix some formats to print unsigned quantities with "%u", not "%d".
Don't append text to items in the tree for non-string values in
"dissect_ndr_nt_STRING_string()".
svn path=/trunk/; revision=4986
"epan/..." pathnames, so as to avoid collisions with header files in any
of the directories in which we look (e.g., "proto.h", as some other
package has its own "proto.h" file which it installs in the top-level
include directory).
Don't add "-I" flags to search "epan", as that's no longer necessary
(and we want includes of "epan" headers to fail if the "epan/" is left
out, so that we don't re-introduce includes lacking "epan/").
svn path=/trunk/; revision=4586
DOS error codes to the table of them, and exporting that table to other
dissectors for protocols using DOS error codes.
svn path=/trunk/; revision=4470
