thank you for your work for httptunnel.
I'm trying to test your software on Ubuntu 13.10, installed from official repository.
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: htc (httptunnel) 3.3 started with arguments:
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: me = htc
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: device = (null)
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: host_name = localhost
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: host_port = 80
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: proxy_name = (null)
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: proxy_port = 8080
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: proxy_buffer_size = 0
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: proxy_buffer_timeout = -1
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: content_length = 102400
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: forward_port = 23
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: max_connection_age = 300
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: use_std = 0
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: strict_content_length = 0
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: keep_alive = 5
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: proxy_authorization = (null)
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: user_agent = (null)
Oct 30 22:06:24 ignazio-HP-620 htc[2650]: debug_level = 0
Oct 30 22:06:38 ignazio-HP-620 htc[2650]: http_write_request: write error: Invalid argument
Oct 30 22:06:38 ignazio-HP-620 htc[2650]: couldn't open tunnel: Invalid argument
Oct 30 22:06:38 ignazio-HP-620 htc[2650]: exit with status = 1
I googled for this error and found no match.