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lwip_recvmsg: MSG_PEEK must be limited to the first iov for TCP
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@ -1144,8 +1144,9 @@ lwip_recvmsg(int s, struct msghdr *message, int flags)
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/* sum up received bytes */
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ret += recvd_local;
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}
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if ((recvd_local < 0) || (recvd_local < (int)message->msg_iov[i].iov_len)) {
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/* returned prematurely */
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if ((recvd_local < 0) || (recvd_local < (int)message->msg_iov[i].iov_len) ||
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(flags & MSG_PEEK)) {
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/* returned prematurely (or peeking, which might actually be limitated to the first iov) */
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if (ret <= 0) {
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/* nothing received at all, propagate the error */
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ret = recvd_local;
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