[FIX] networking: print int length with %d in NETWORKING_DEBUG output

[cfsmp3]

Follow-up to #2307, picking up the one bit its sibling PR got right.

net_send_cc() takes int len, but its debug line printed it with %u:

fprintf(stderr, "[C] Sending %u bytes\n", len);   // len is int

#2307 fixed the other two specifiers in these blocks (%u → %zu where len is size_t) but missed this one. #2175 by @Varadraj75 had it right — that PR was closed after five months without a rebase, so this ports the remaining fix.

Scope

These blocks only compile under -DNETWORKING_DEBUG=ON, so no shipped build was affected. gcc doesn't diagnose %u against int (same width), which is why it survived the sweep on #2307 — I found it by auditing every specifier in the enabled blocks rather than trusting the compiler.

Verification

Enabling the debug blocks and compiling with -Wall -Wextra -Wformat=2, both with and without -DDISABLE_RUST:

• before: [C] Sending %u bytes with an int
• after: zero format diagnostics in either configuration

The two remaining -Wpointer-sign warnings on write_block() are pre-existing, in live code, and unrelated to the debug output — left alone deliberately.

clang-format clean. One line, one file.

Credit: @Varadraj75 reported #2174 and caught this specifier in #2175.

[ccextractor-bot]

CCExtractor CI platform finished running the test files on linux. Below is a summary of the test results, when compared to test for commit 06179f7...:

Report Name	Tests Passed
Broken	10/13
CEA-708	2/14
DVB	3/7
DVD	3/3
DVR-MS	2/2
General	27/27
Hardsubx	1/1
Hauppage	3/3
MP4	3/3
NoCC	10/10
Options	81/86
Teletext	20/21
WTV	13/13
XDS	34/34

NOTE: The following tests have been failing on the master branch as well as the PR:

• ccextractor --out=srt --latin1 --autoprogram 73d9313d64..., Last passed:

  Test 8738

• ccextractor --out=ttxt --latin1 001dd8cdf7..., Last passed:

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• ccextractor --service 1 --out=txt --no-bom --no-rollup ea83ff7bcb..., Last passed:

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• ccextractor --datapid 2310 --autoprogram --out=srt --latin1 e639e54550..., Last passed:

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Congratulations: Merging this PR would fix the following tests:

• ccextractor --out=srt --latin1 611b4a9235..., Last passed: Never
• ccextractor --autoprogram --out=ttxt --latin1 1020459a86..., Last passed: Never
• ccextractor --autoprogram --out=srt --latin1 --quant 0 85271be4d2..., Last passed: Never
• ccextractor --autoprogram --out=ttxt --latin1 132d7df7e9..., Last passed: Never
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• ccextractor --autoprogram --out=ttxt --latin1 --ucla dab1c1bd65..., Last passed: Never
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• ccextractor --out=srt --latin1 --autoprogram 29e5ffd34b..., Last passed: Never
• ccextractor --out=spupng c83f765c66..., Last passed: Never
• ccextractor --dru c83f765c66..., Last passed: Never
• ccextractor --startat 4 --endat 7 c83f765c66..., Last passed: Never
• ccextractor --codec dvbsub --out=spupng 85271be4d2..., Last passed: Never
• ccextractor --startcreditstext "CCextractor Start crdit Testing" c4dd893cb9..., Last passed: Never
• ccextractor --startcreditsnotbefore 1 --startcreditstext "CCextractor Start crdit Testing" c4dd893cb9..., Last passed: Never
• ccextractor --startcreditsnotafter 2 --startcreditstext "CCextractor Start crdit Testing" c4dd893cb9..., Last passed: Never
• ccextractor --startcreditsforatleast 1 --startcreditstext "CCextractor Start crdit Testing" c4dd893cb9..., Last passed: Never
• ccextractor --startcreditsforatmost 2 --startcreditstext "CCextractor Start crdit Testing" c4dd893cb9..., Last passed: Never
• ccextractor --out=srt --latin1 f23a544ba8..., Last passed: Never
• ccextractor --autoprogram --out=srt --latin1 --ucla d037c7509e..., Last passed: Never
• ccextractor --autoprogram --out=srt --latin1 --ucla 7d3f25c32c..., Last passed: Never
• ccextractor --autoprogram --out=ttxt --latin1 --ucla --xds 7f41299cc7..., Last passed: Never

This PR does not introduce any new test failures. However, some tests are failing on both master and this PR (see above).

Check the result page for more info.

[ccextractor-bot]

CCExtractor CI platform finished running the test files on windows. Below is a summary of the test results, when compared to test for commit 749b355...:

Report Name	Tests Passed
Broken	9/13
CEA-708	2/14
DVB	1/7
DVD	3/3
DVR-MS	2/2
General	22/27
Hardsubx	1/1
Hauppage	3/3
MP4	3/3
NoCC	10/10
Options	72/86
Teletext	20/21
WTV	12/13
XDS	31/34

Your PR breaks these cases:

• ccextractor --out=srt --latin1 611b4a9235...
• ccextractor --autoprogram --out=ttxt --latin1 1020459a86...
• ccextractor --autoprogram --out=srt --latin1 --quant 0 85271be4d2...
• ccextractor --autoprogram --out=ttxt --latin1 132d7df7e9...
• ccextractor --autoprogram --out=ttxt --latin1 99e5eaafdc...
• ccextractor --autoprogram --out=ttxt --latin1 --ucla dab1c1bd65...
• ccextractor --autoprogram --out=ttxt --latin1 01509e4d27...
• ccextractor --out=srt --latin1 --autoprogram 29e5ffd34b...
• ccextractor --out=spupng c83f765c66...
• ccextractor --dru c83f765c66...
• ccextractor --startat 4 --endat 7 c83f765c66...
• ccextractor --codec dvbsub --out=spupng 85271be4d2...
• ccextractor --startcreditstext "CCextractor Start crdit Testing" c4dd893cb9...
• ccextractor --startcreditsnotbefore 1 --startcreditstext "CCextractor Start crdit Testing" c4dd893cb9...
• ccextractor --startcreditsnotafter 2 --startcreditstext "CCextractor Start crdit Testing" c4dd893cb9...
• ccextractor --startcreditsforatleast 1 --startcreditstext "CCextractor Start crdit Testing" c4dd893cb9...
• ccextractor --startcreditsforatmost 2 --startcreditstext "CCextractor Start crdit Testing" c4dd893cb9...
• ccextractor --out=srt --latin1 f23a544ba8...
• ccextractor --autoprogram --out=srt --latin1 --ucla d037c7509e...
• ccextractor --autoprogram --out=srt --latin1 --ucla 7d3f25c32c...
• ccextractor --autoprogram --out=ttxt --latin1 --ucla --xds 7f41299cc7...

NOTE: The following tests have been failing on the master branch as well as the PR:

• ccextractor --out=srt --latin1 --autoprogram 73d9313d64..., Last passed:

  Test 8611

• ccextractor --out=ttxt --latin1 001dd8cdf7..., Last passed:

  Test 8611

• ccextractor --out=srt --latin1 4d4e938ef6..., Last passed:

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• ccextractor --service 1 --out=txt --no-bom --no-rollup ea83ff7bcb..., Last passed:

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• ccextractor --service 1 --out=txt f17524b53f..., Last passed:

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• ccextractor --service 1 --out=txt 80848c45f8..., Last passed:

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• ccextractor --service 1 --out=txt --no-bom --no-rollup b5d6aad89f..., Last passed:

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• ccextractor --service 1[EUC-KR] --out=txt --no-rollup b5d6aad89f..., Last passed:

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• ccextractor --service 1 --out=srt da904de35d..., Last passed:

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• ccextractor --service 1 --out=sami da904de35d..., Last passed:

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• ccextractor --service 1[EUC-KR] b5d6aad89f..., Last passed:

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• ccextractor --service 1[EUC-KR] --no-rollup b5d6aad89f..., Last passed:

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• ccextractor --service all da904de35d..., Last passed:

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• ccextractor --service all[EUC-KR] b5d6aad89f..., Last passed:

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• ccextractor --service 1,2[UTF-8],3[EUC-KR],54 --out=txt da904de35d..., Last passed:

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• ccextractor --autoprogram --out=srt --latin1 f1422b8bfe..., Last passed:

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• ccextractor --autoprogram --out=srt --latin1 d41b53b504..., Last passed:

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• ccextractor --datapid 2310 --autoprogram --out=srt --latin1 e639e54550..., Last passed:

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It seems that not all tests were passed completely. This is an indication that the output of some files is not as expected (but might be according to you).

Check the result page for more info.