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ws: fix multiframe send handling

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Fixes #10413
Closes #10420
This commit is contained in:
Mike Duglas 2023-02-06 10:34:46 +01:00 committed by Daniel Stenberg
parent 51e9cff268
commit ad55b23634
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1 changed files with 12 additions and 2 deletions
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14
lib/ws.c
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@ -561,17 +561,27 @@ static size_t ws_packethead(struct Curl_easy *data,
}
if(!(flags & CURLWS_CONT)) {
/* if not marked as continuing, assume this is the final fragment */
firstbyte |= WSBIT_FIN | opcode;
if(!ws->ws.contfragment)
/* not marked as continuing, this is the final fragment */
firstbyte |= WSBIT_FIN | opcode;
else
/* marked as continuing, this is the final fragment; set CONT
opcode and FIN bit */
firstbyte |= WSBIT_FIN | WSBIT_OPCODE_CONT;
ws->ws.contfragment = FALSE;
infof(data, "WS: set FIN");
}
else if(ws->ws.contfragment) {
/* the previous fragment was not a final one and this isn't either, keep a
CONT opcode and no FIN bit */
firstbyte |= WSBIT_OPCODE_CONT;
infof(data, "WS: keep CONT, no FIN");
}
else {
firstbyte = opcode;
ws->ws.contfragment = TRUE;
infof(data, "WS: set CONT, no FIN");
}
out[0] = firstbyte;
if(len > 65535) {