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adjust scp error return checking for closed channels #702

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Jun 5, 2024
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Merged

adjust scp error return checking for closed channels #702

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4 changes: 3 additions & 1 deletion examples/scpclient/scpclient.c
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Original file line number Diff line number Diff line change
Expand Up @@ -324,8 +324,10 @@ THREAD_RETURN WOLFSSH_THREAD scp_client(void* args)
WCLOSESOCKET(sockFd);
wolfSSH_free(ssh);
wolfSSH_CTX_free(ctx);
if (ret != WS_SUCCESS && ret != WS_SOCKET_ERROR_E)
if (ret != WS_SUCCESS && ret != WS_SOCKET_ERROR_E &&
ret != WS_CHANNEL_CLOSED) {
err_sys("Closing scp stream failed. Connection could have been closed by peer");
}

ClientFreeBuffers(pubKeyName, privKeyName, NULL);
#if !defined(WOLFSSH_NO_ECC) && defined(FP_ECC) && defined(HAVE_THREAD_LS)
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6 changes: 5 additions & 1 deletion src/wolfscp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -730,7 +730,11 @@ int DoScpRequest(WOLFSSH* ssh)
/* Peer MUST send back a SSH_MSG_CHANNEL_CLOSE unless already
sent*/
ret = wolfSSH_stream_read(ssh, buf, 1);
if (ret != WS_EOF) {
if (ret == WS_SOCKET_ERROR_E || ret == WS_CHANNEL_CLOSED) {
WLOG(WS_LOG_DEBUG, scpState, "Peer hung up, but SCP is done");
ret = WS_SUCCESS;
}
else if (ret != WS_EOF) {
WLOG(WS_LOG_DEBUG, scpState, "Did not receive EOF packet");
}
else {
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