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transfer: make the select_bits_paused condition check both directions

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If there is activity in a direction that is not paused, return false.

Reported-by: Sergey Bronnikov
Bug: https://curl.se/mail/lib-2024-01/0049.html
Closes #12740
This commit is contained in:
Daniel Stenberg 2024-01-22 16:22:19 +01:00
parent 0535f6ec71
commit cdd905a985
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GPG Key ID: 5CC908FDB71E12C2
1 changed files with 9 additions and 4 deletions
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13
lib/transfer.c
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@ -850,10 +850,15 @@ static int select_bits_paused(struct Curl_easy *data, int select_bits)
* of our state machine are handling PAUSED transfers correctly. So, we
* do not want to go there.
* NOTE: we are only interested in PAUSE, not HOLD. */
return (((select_bits & CURL_CSELECT_IN) &&
(data->req.keepon & KEEP_RECV_PAUSE)) ||
((select_bits & CURL_CSELECT_OUT) &&
(data->req.keepon & KEEP_SEND_PAUSE)));
/* if there is data in a direction not paused, return false */
if(((select_bits & CURL_CSELECT_IN) &&
!(data->req.keepon & KEEP_RECV_PAUSE)) ||
((select_bits & CURL_CSELECT_OUT) &&
!(data->req.keepon & KEEP_SEND_PAUSE)))
return FALSE;
return (data->req.keepon & (KEEP_RECV_PAUSE|KEEP_SEND_PAUSE));
}
/*