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Remove init of proto, header field, expert info and subtree variables.
This will reduces the binary size by approximate 1266320 bytes due to
using .bss to zero-initialize the fields.
The conversion is done using the tools/convert-proto-init.py script.
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As requested [here][1] by @eapache, help with removing calls to
`wmem_packet_scope()` in favour of references to `pinfo->pool`.
* Plugins chosen semi-randomly.
* When a calling function already has a `pinfo` argument, use that.
* Remove `_U_` from its signature if it was there.
* If a function seems narrowly focused on getting and (possibly)
returning memory, change the function signature to take a
`wmem_allocator_t *`.
* If it seems more focused on packet-based operations, pass in a
`packet_info *` instead and use `pinfo->pool` within.
* If there are several functions defined with the same call
signature, add `pinfo _U_` to the argument list of similar
functions in order to maintain clarity/symmetry.
[1]: https://www.wireshark.org/lists/wireshark-dev/202107/msg00052.html
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display_extension_block is supposed to return the current offset,
not the number of bytes remaining. The number of bytes remaining
can be less than the current offset and cause an infinite loop.
In the case of an error, set lastheader and return the current
offset in order to break out of the main processing loop.
Fix #18711.
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display_extension_block is supposed to return the current offset,
not the number of bytes remaining, which can be less than the current
offset and cause an infinite loop. In the case of errors, set
lastheader and return the current offset to break out of loops.
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This avoids having general-purpose decoding happening in
non-DLL-exported functions defined in a dissector for #18478,
and removes unused functions and avoids duplicate decoding.
This also removes unnecessary early exit conditions for #18145.
Unit test cases for varint decoding are added to verify this.
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ftype-double.c:89:1: warning: no previous prototype for function 'val_unary_minus'
ftype-double.c:96:1: warning: no previous prototype for function 'val_add'
ftype-double.c:103:1: warning: no previous prototype for function 'val_subtract'
ftype-double.c:110:1: warning: no previous prototype for function 'val_multiply'
ftype-double.c:117:1: warning: no previous prototype for function 'val_divide'
ftype-integer.c:670:1: warning: no previous prototype for function 'uint_bitwise_and'
ftype-integer.c:677:1: warning: no previous prototype for function 'uint_is_zero'
ftype-integer.c:683:1: warning: no previous prototype for function 'uint_is_negative'
ftype-integer.c:689:1: warning: no previous prototype for function 'uint_unary_minus'
ftype-integer.c:704:1: warning: no previous prototype for function 'uint64_bitwise_and'
ftype-integer.c:711:1: warning: no previous prototype for function 'uint64_is_zero'
ftype-integer.c:717:1: warning: no previous prototype for function 'uint64_is_negative'
ftype-integer.c:723:1: warning: no previous prototype for function 'uint64_unary_minus'
ftype-integer.c:738:1: warning: no previous prototype for function 'sint_bitwise_and'
ftype-integer.c:745:1: warning: no previous prototype for function 'sint_is_zero'
ftype-integer.c:751:1: warning: no previous prototype for function 'sint_is_negative'
ftype-integer.c:757:1: warning: no previous prototype for function 'sint_unary_minus
ftype-integer.c:764:1: warning: no previous prototype for function 'sint64_bitwise_and'
ftype-integer.c:771:1: warning: no previous prototype for function 'sint64_is_zero'
ftype-integer.c:777:1: warning: no previous prototype for function 'sint64_is_negative'
ftype-integer.c:783:1: warning: no previous prototype for function 'sint64_unary_minus'
packet-bpv6.c:2182:1: warning: no previous prototype for function 'proto_register_bpv6'
packet-bpv6.c:2766:1: warning: no previous prototype for function 'proto_reg_handoff_bpv6'
packet-bpv7.c:1978:6: warning: no previous prototype for function 'proto_register_bpv7'
packet-bpv7.c:2037:6: warning: no previous prototype for function 'proto_reg_handoff_bpv7'
packet-realtek.c:349:1: warning: no previous prototype for function 'proto_register_realtek'
packet-realtek.c:436:1: warning: no previous prototype for function 'proto_reg_handoff_realtek'
packet-tcpcl.c:2147:1: warning: no previous prototype for function 'proto_register_tcpclv3'
packet-tcpcl.c:2211:1: warning: no previous prototype for function 'proto_reg_handoff_tcpclv3'
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Do not require a useless ENC_NA parameter for string encodings.
FT_STRING and FT_STRINGZ types don't have any ndianness.
Follow-up to 6ec429622c9258eefd388caf21ce92ab5b9f54b4.
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Fixes #17933.
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