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upload-pack: don't send null character in abort message to the client

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Since 583b7ea31b (upload-pack/fetch-pack: support side-band
communication, 2006-06-21) the abort message sent by upload-pack in
case of possible repository corruption ends with a null character.
This can be seen in several test cases in 't5530-upload-pack-error.sh'
where 'grep <pattern> output.err' often reports "Binary file
output.err matches" because of that null character.

The reason for this is that the abort message is defined as a string
literal, and we pass its size to the send function as
sizeof(abort_msg), which also counts the terminating null character.

Use strlen() instead to avoid sending that terminating null character.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
SZEDER Gábor 2024-02-25 19:34:52 +01:00 committed by Junio C Hamano
parent 3c2a3fdc38
commit 3f4c7a0805
1 changed files with 1 additions and 1 deletions
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2
upload-pack.c
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@ -463,7 +463,7 @@ static void create_pack_file(struct upload_pack_data *pack_data,
fail:
free(output_state);
send_client_data(3, abort_msg, sizeof(abort_msg),
send_client_data(3, abort_msg, strlen(abort_msg),
pack_data->use_sideband);
die("git upload-pack: %s", abort_msg);
}