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socks: fix username max size is 255 (0xFF) #10105

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2 changes: 1 addition & 1 deletion lib/socks.c
Original file line number Diff line number Diff line change
Expand Up @@ -690,7 +690,7 @@ static CURLproxycode do_SOCKS5(struct Curl_cfilter *cf,
socksreq[len++] = (unsigned char) proxy_user_len;
if(sx->proxy_user && proxy_user_len) {
/* the length must fit in a single byte */
if(proxy_user_len >= 255) {
if(proxy_user_len > 255) {
failf(data, "Excessive user name length for proxy auth");
return CURLPX_LONG_USER;
}
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