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sftp_write: clean offsets on error

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When an error has occurred on FXP_WRITE, we must make sure that the
offset, sent offset and acked counter are reset properly.
This commit is contained in:
Daniel Stenberg
2011-04-13 13:53:07 +02:00
parent 5dc5c80a39
commit d881e7e8ef
1 changed files with 12 additions and 0 deletions
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12
src/sftp.c
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@@ -1681,6 +1681,18 @@ static ssize_t sftp_write(LIBSSH2_SFTP_HANDLE *handle, const char *buffer,
/* flush all pending packets from the outgoing list */
sftp_packetlist_flush(handle);
/* since we return error now, the applicaton will not get any
outstanding data acked, so we need to rewind the offset to
where the application knows it has reached with acked data */
handle->u.file.offset -= handle->u.file.acked;
/* then reset the offset_sent to be the same as the offset */
handle->u.file.offset_sent = handle->u.file.offset;
/* clear the acked counter since we can have no pending data to
ack after an error */
handle->u.file.acked = 0;
/* the server returned an error for that written chunk, propagate
this back to our parent function */
return _libssh2_error(session, LIBSSH2_ERROR_SFTP_PROTOCOL,