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telnet: check return code from fileno()

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and return error if necessary

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Closes #13457
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Daniel Stenberg 2024-04-24 08:07:34 +02:00
parent f33ee2e73b
commit a090111613
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1 changed files with 5 additions and 0 deletions
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5
lib/telnet.c
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@ -1535,6 +1535,11 @@ static CURLcode telnet_do(struct Curl_easy *data, bool *done)
pfd[1].events = POLLIN;
poll_cnt = 2;
interval_ms = 1 * 1000;
if(pfd[1].fd < 0) {
failf(data, "cannot read input");
result = CURLE_RECV_ERROR;
keepon = FALSE;
}
}
while(keepon) {