Hi! Nice to hear you are developing this, I'll add it to our wiki if it's not there.
Please don't use net_transmit, it's going away. You should use ostream and istream instead. Aki On 08.09.2017 09:29, Steffan Cline wrote: > I’m working on an OS project from github. There are two parts: > > Dovecot plugin - https://github.com/st3fan/dovecot-xaps-plugin > > Daemon written in Go - https://github.com/st3fan/dovecot-xaps-daemon > > > > # dovecot --version > > 2.2.10 > > > > Both parts worked fine on CentOS 6 but I recently rebuilt them both for > CentOS 7 and have run into some errors. > > > > The plugin sends a notification over a socket to the daemon. The daemon then > processes the request and returns a message to the plugin. > > > > The plugin reads the response then closes the socket and at that point, I’m > running into an issue. > > > > The daemon reports the following: read unix /tmp/xapsd.sock->@: read: > connection reset by peer > > > > In reading the Go language docs, it says that it will throw the first error > it hits before the EOF from the socket. This led me to think that perhaps the > plugin was not sending an EOF when closing the socket. > > > > I tried to write an EOF to the socket before the close but no change. > Everything works between the plugin and daemon right up until the socket > close. > > > > Is there a way to monitor the stream through the socket so I can see if the > plugin is indeed sending the EOF? Knowing that lets me know if I need to > chase down the issue in the Go daemon code. > > > > I’m no pro with C but I tried. The snippet from the plugin follows: > > > > alarm(1); > > { > > if (net_transmit(fd, str_data(req), str_len(req)) < 0) { > > i_error("write(%s) failed: %m", socket_path); > > ret = -1; > > } else { > > char res[1024]; > > ret = net_receive(fd, res, sizeof(res)-1); > > if (ret < 0) { > > i_error("read(%s) failed: %m", socket_path); > > } else { > > res[ret] = '\0'; > > if (strncmp(res, "OK ", 3) == 0) { > > ret = 0; > > } > > } > > } > > } > > alarm(0); > > > > char stx[1]; > > stx[0]=(char) 4; > > //stx[1]='\0'; > > if ( net_transmit(fd, stx, sizeof(stx) ) < 0 ) { > > i_error("Error writing EOF"); > > } > > > > //string_t *testEOF= t_str_new(2); > > //str_append(testEOF, (char*) 4); > > //if ( net_transmit(fd, str_data(testEOF), str_len(testEOF) ) < 0 ) { > > // i_error("Error writing EOF"); > > // } > > > > //i_close_fd(&fd); > > net_disconnect(fd); > > fd=-1; > > > > > > > > Thank you, > > Steffan Cline > > 602-793-0014 > >
