Gavrie Philipson sumitted a patch to get the actual text of the error
on scp upload.
Этот коммит содержится в:
James Housley
родитель
a9fc3bdb4e
Коммит
530e57d4ac
@ -1,3 +1,7 @@
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2007-07-05 James Housley <jim@thehousleys.net>
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* Gavrie Philipson sumitted a patch to get the actual text
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of the error on scp upload.
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2007-06-23 James Housley <jim@thehousleys.net>
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* Eberhard Mattes submitted a patch "According to RFC 4251,
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a boolean value of true is encoded as 1, not as 0xff". Servers
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@ -1,5 +1,5 @@
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/*
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* $Id: scp_write_nonblock.c,v 1.2 2007/06/08 13:33:08 jehousley Exp $
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* $Id: scp_write_nonblock.c,v 1.3 2007/07/05 11:08:17 jehousley Exp $
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*
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* Sample showing how to do a simple SCP transfer.
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*/
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@ -165,7 +165,10 @@ int main(int argc, char *argv[])
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channel = libssh2_scp_send(session, scppath, 0x1FF & fileinfo.st_mode, (unsigned long)fileinfo.st_size);
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if ((!channel) && (libssh2_session_last_errno(session) != LIBSSH2_ERROR_EAGAIN)) {
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fprintf(stderr, "Unable to open a session\n");
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char *err_msg;
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libssh2_session_last_error(session, &err_msg, NULL, 0);
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fprintf(stderr, "%s\n", err_msg);
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goto shutdown;
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}
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} while (!channel);
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@ -1172,7 +1172,7 @@ libssh2_channel_handle_extended_data2(LIBSSH2_CHANNEL *channel, int ignore_mode)
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/* }}} */
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/*
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* {{{ _libssh2_channel_read_ex
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* {{{ libssh2_channel_read_ex
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* Read data from a channel blocking or non-blocking depending on set state
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*
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* When this is done non-blocking, it is important to not return 0 until the
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@ -1329,6 +1329,52 @@ channel_read_ex_point1:
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}
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/* }}} */
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/*
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* {{{ libssh2_channel_packet_data_len
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* Return the size of the data block of the current packet, or 0 if there
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* isn't a packet.
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*/
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unsigned long
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libssh2_channel_packet_data_len(LIBSSH2_CHANNEL *channel, int stream_id)
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{
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LIBSSH2_SESSION *session = channel->session;
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LIBSSH2_PACKET *read_packet;
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uint32_t read_local_id;
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if ((read_packet = session->packets.head) == NULL) {
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return 0;
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}
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while (read_packet) {
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read_local_id = libssh2_ntohu32(read_packet->data + 1);
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/*
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* Either we asked for a specific extended data stream
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* (and data was available),
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* or the standard stream (and data was available),
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* or the standard stream with extended_data_merge
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* enabled and data was available
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*/
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if ((stream_id && (read_packet->data[0] == SSH_MSG_CHANNEL_EXTENDED_DATA) &&
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(channel->local.id == read_local_id) &&
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(stream_id == (int)libssh2_ntohu32(read_packet->data + 5))) ||
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(!stream_id && (read_packet->data[0] == SSH_MSG_CHANNEL_DATA) &&
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(channel->local.id == read_local_id)) ||
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(!stream_id && (read_packet->data[0] == SSH_MSG_CHANNEL_EXTENDED_DATA) &&
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(channel->local.id == read_local_id) &&
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(channel->remote.extended_data_ignore_mode == LIBSSH2_CHANNEL_EXTENDED_DATA_MERGE))) {
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return (read_packet->data_len - read_packet->data_head);
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}
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read_packet = read_packet->next;
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}
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return 0;
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}
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/* }}} */
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/* {{{ libssh2_channel_write_ex
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* Send data to a channel
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*/
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@ -798,6 +798,8 @@ struct _LIBSSH2_SESSION {
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unsigned long scpSend_command_len;
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unsigned char scpSend_response[LIBSSH2_SCP_RESPONSE_BUFLEN];
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unsigned long scpSend_response_len;
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char *scpSend_err_msg;
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long scpSend_err_len;
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LIBSSH2_CHANNEL *scpSend_channel;
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};
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@ -1041,6 +1043,7 @@ int libssh2_packet_add(LIBSSH2_SESSION *session, unsigned char *data, size_t dat
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int libssh2_kex_exchange(LIBSSH2_SESSION *session, int reexchange, key_exchange_state_t *state);
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unsigned long libssh2_channel_nextid(LIBSSH2_SESSION *session);
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LIBSSH2_CHANNEL *libssh2_channel_locate(LIBSSH2_SESSION *session, unsigned long channel_id);
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unsigned long libssh2_channel_packet_data_len(LIBSSH2_CHANNEL *channel, int stream_id);
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/* this is the lib-internal set blocking function */
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int _libssh2_session_set_blocking(LIBSSH2_SESSION *session, int blocking);
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61
src/scp.c
61
src/scp.c
@ -419,6 +419,15 @@ libssh2_scp_send_ex(LIBSSH2_SESSION *session, const char *path, int mode, size_t
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unsigned const char *base;
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int rc;
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/*
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* =============================== NOTE ===============================
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* I know this is very ugly and not a really good use of "goto", but
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* this case statement would be even uglier to do it any other way
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*/
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if (session->scpSend_state == libssh2_NB_state_jump1) {
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goto scp_read_ex_point1;
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}
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if (session->scpSend_state == libssh2_NB_state_idle) {
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session->scpSend_command_len = path_len + sizeof("scp -t ");
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@ -577,15 +586,49 @@ libssh2_scp_send_ex(LIBSSH2_SESSION *session, const char *path, int mode, size_t
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session->scpSend_state = libssh2_NB_state_sent6;
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}
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/* Wait for ACK */
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rc = libssh2_channel_read_ex(session->scpSend_channel, 0, (char *)session->scpSend_response, 1);
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if (rc == PACKET_EAGAIN) {
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libssh2_error(session, LIBSSH2_ERROR_EAGAIN, "Would block waiting for response", 0);
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return NULL;
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}
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else if ((rc <= 0) || (session->scpSend_response[0] != 0)) {
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libssh2_error(session, LIBSSH2_ERROR_SCP_PROTOCOL, "Invalid ACK response from remote", 0);
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goto scp_send_error;
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if (session->scpSend_state == libssh2_NB_state_sent6) {
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/* Wait for ACK */
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rc = libssh2_channel_read_ex(session->scpSend_channel, 0, (char *)session->scpSend_response, 1);
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if (rc == PACKET_EAGAIN) {
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libssh2_error(session, LIBSSH2_ERROR_EAGAIN, "Would block waiting for response", 0);
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return NULL;
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}
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else if (rc <= 0) {
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libssh2_error(session, LIBSSH2_ERROR_SCP_PROTOCOL, "Invalid ACK response from remote", 0);
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goto scp_send_error;
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}
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else if (session->scpSend_response[0] != 0) {
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session->scpSend_state = libssh2_NB_state_jump1;
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/*
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* Set this as the default error for here, if
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* we are successful it will be replaced
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*/
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libssh2_error(session, LIBSSH2_ERROR_SCP_PROTOCOL, "Invalid ACK response from remote", 0);
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session->scpSend_err_len = libssh2_channel_packet_data_len(session->scpSend_channel, 0);
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session->scpSend_err_msg = LIBSSH2_ALLOC(session, session->scpSend_err_len+1);
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if (!session->scpSend_err_msg) {
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goto scp_send_error;
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}
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memset(session->scpSend_err_msg, 0, session->scpSend_err_len+1);
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/* Read the remote error message */
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scp_read_ex_point1:
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rc = libssh2_channel_read_ex(session->scpSend_channel, 0, session->scpSend_err_msg, session->scpSend_err_len);
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if (rc == PACKET_EAGAIN) {
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libssh2_error(session, LIBSSH2_ERROR_EAGAIN, "Would block waiting for response", 0);
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return NULL;
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}
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else if (rc <= 0) {
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LIBSSH2_FREE(session, session->scpSend_err_msg);
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session->scpSend_err_msg = NULL;
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goto scp_send_error;
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}
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libssh2_error(session, LIBSSH2_ERROR_SCP_PROTOCOL, session->scpSend_err_msg, 1);
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goto scp_send_error;
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}
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}
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session->scpSend_state = libssh2_NB_state_idle;
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