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NE_SESSION_PROXY

Section: neon API reference (3)
Updated: 23 September 2014
Index Return to Main Contents
 

NAME

ne_session_proxy, ne_session_socks_proxy, ne_session_system_proxy, ne_set_addrlist - configure proxy servers  

SYNOPSIS

#include <ne_session.h>
void ne_session_proxy(ne_session *session, const char *hostname, unsigned int port);
void ne_session_system_proxy(ne_session *session, unsigned int flags);
void ne_session_socks_proxy(ne_session *session, enum ne_sock_sversion version, const char *hostname, unsigned int port, const char *username, const char *password);
void ne_set_addrlist(ne_session *session, const ne_inet_addr **addrlist, size_t count);
 

DESCRIPTION

One (and no more than one) of the functions ne_session_proxy, ne_session_system_proxy, ne_session_socks_proxy, ne_set_addrlist can be used to configure a proxy server for a given session object. If more than one function is invoked for any given session object, only the last call has effect. If one of the functions is to be used, it must be used before the creation of any request object for the session.  

HTTP proxy specification

The ne_session_proxy function configures use of an HTTP proxy server for the session, the location of which is given by the hostname and port paramters. If the proxy requires authentication, ne_set_proxy_auth should be used.  

System proxy configuration

The ne_session_system_proxy function configures the session to use any proxy servers specified by the system configuration. Support for this function is platform-specific; if unsupported, the function has no effect.  

SOCKS proxy configuration

The ne_session_socks_proxy function configures the session to use a SOCKS proxy. The version indicates which version of the SOCKS protocol should be used. The hostname and port parameters specify the SOCKS proxy location. Note that a server with only an IPv6 address cannot be used with SOCKS v4 or v4A. The interpretation of the other arguments depends on the version specified:

NE_SOCK_SOCKSV4 (version 4)

The username parameter must be non-NULL; the password parameter is ignored.

NE_SOCK_SOCKSV4A (version 4A)

The username parameter must be non-NULL; the password parameter is ignored.

NE_SOCK_SOCKSV5 (version 5)

The username parameter may be NULL; if it is non-NULL, the password parameter must also be non-NULL; otherwise, it is ignored..
 

Origin server address override

The ne_set_addrlist function forces use of an address and port the a specified list when establishing a TCP connection, ignoring the "real" hostname and port identifying the origin server for the session (as passed to ne_session_create). The origin server's "real" hostname and port will still be used in the Host header in HTTP requests. When a connection is required, the library will iterate through the addrlist list, attempting to connect to the address addrlist[0] through to addrlist[count-1] in turn, until a connection can be established.  

RETURN VALUES

None of the functions described here has a return value.  

EXAMPLES

Create and destroy a session:

ne_session *sess;
sess = ne_session_create("http", "host.example.com", 80);
ne_session_proxy(sess, "proxy.example.com", 3128);
/* ... use sess ... */
ne_session_destroy(sess);
 

SEE ALSO

ne_ssl_set_verify, ne_ssl_trust_cert, ne_sock_init, ne_set_session_flag  

AUTHOR

Joe Orton <neon@lists.manyfish.co.uk>

Author.
 

COPYRIGHT



 

Index

NAME
SYNOPSIS
DESCRIPTION
HTTP proxy specification
System proxy configuration
SOCKS proxy configuration
Origin server address override
RETURN VALUES
EXAMPLES
SEE ALSO
AUTHOR
COPYRIGHT


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