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Fix that global listener count could be negative under certain circumstances

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This fixes a bug that could cause the global listener count of Icecast to
be negative. This was caused due to wrong handling of errors in the
format_prepare_headers function.

Fixes: #2199

Thanks a lot to Simeon Völkel (0xBD4E031CDB4043C9) for reporting
and investigating the bug.
This commit is contained in:
Marvin Scholz 2015-06-06 14:06:48 +02:00
parent c35760cd50
commit 16dac2505e
1 changed files with 5 additions and 1 deletions
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6
src/format.c
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@ -408,8 +408,12 @@ static int format_prepare_headers (source_t *source, client_t *client)
client->refbuf->len -= remaining; client->refbuf->len -= remaining;
if (source->format->create_client_data) if (source->format->create_client_data)
if (source->format->create_client_data (source, client) < 0) if (source->format->create_client_data (source, client) < 0) {
ICECAST_LOG_ERROR("Client format header generation failed. "
"(Likely not enough or wrong source data) Dropping client.");
client->respcode = 500;
return -1; return -1;
}
return 0; return 0;
} }