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artdaq  v3_04_00
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src/artdaq/DAQdata/TCPConnect.hh File Reference

#include <netinet/in.h>

Go to the source code of this file.

Functions

int ResolveHost (char const *host_in, in_addr &addr)
 Convert a string hostname to a in_addr suitable for socket communication.
int GetIPOfInterface (std::string interface_name, in_addr &addr)
 Get the IP address associated with a given interface name.
int AutodetectPrivateInterface (in_addr &addr)
 Pick a private IP address on this host.
int GetInterfaceForNetwork (char const *host_in, in_addr &addr)
 Convert an IP address to the network address of the interface sharing the subnet mask.
int ResolveHost (char const *host_in, int dflt_port, sockaddr_in &sin)
 Convert a string hostname and port to a sockaddr_in suitable for socket communication.
int TCPConnect (char const *host_in, int dflt_port, long flags=0, int sndbufsiz=0)
 Connect to a host on a given port.

Detailed Description

Provides utility functions for connecting TCP sockets

Definition in file TCPConnect.hh.


Function Documentation

int AutodetectPrivateInterface ( in_addr &  addr  ) 

Pick a private IP address on this host.

Parameters:
[out] addr in_addr object populated with resolved host
Returns:
0 if success, -1 if gethostbyname fails, 2 if defaulted to 0.0.0.0 (No matching interfaces)

The following preference order is used: 1. 192.168.0.0/16 2. 172.16.0.0/12 3. 10.0.0.0/8 4. 131.225.0.0/16 5. 0.0.0.0 (returns 2)

Definition at line 127 of file TCPConnect.cc.

int GetInterfaceForNetwork ( char const *  host_in,
in_addr &  addr 
)

Convert an IP address to the network address of the interface sharing the subnet mask.

Parameters:
host_in IP to resolve
[out] addr in_addr object populated with resolved host
Returns:
0 if success, -1 if gethostbyname fails, 2 if defaulted to 0.0.0.0 (No matching interfaces)

Definition at line 217 of file TCPConnect.cc.

int GetIPOfInterface ( std::string  interface_name,
in_addr &  addr 
)

Get the IP address associated with a given interface name.

Parameters:
interface_name Name of the interface to resolve
[out] addr in_addr object populated with interface IP
Returns:
0 if success, -1 if gethostbyname fails, 2 if defaulted to 0.0.0.0 (No matching interfaces)

Definition at line 75 of file TCPConnect.cc.

int ResolveHost ( char const *  host_in,
int  dflt_port,
sockaddr_in &  sin 
)

Convert a string hostname and port to a sockaddr_in suitable for socket communication.

Parameters:
host_in Name or IP of host to resolve
dflt_port POrt to populate in output
[out] sin sockaddr_in object populated with resolved host and port
Returns:
0 if success, -1 if gethostbyname fails

Definition at line 306 of file TCPConnect.cc.

int ResolveHost ( char const *  host_in,
in_addr &  addr 
)

Convert a string hostname to a in_addr suitable for socket communication.

Parameters:
host_in Name or IP of host to resolve
[out] addr in_addr object populated with resolved host
Returns:
0 if success, -1 if gethostbyname fails

Definition at line 33 of file TCPConnect.cc.

int TCPConnect ( char const *  host_in,
int  dflt_port,
long  flags = 0,
int  sndbufsiz = 0 
)

Connect to a host on a given port.

Parameters:
host_in Name or IP of the host to connect to
dflt_port Port to connect to
flags TCP flags to use for the socket
sndbufsiz Size of the send buffer. Set to 0 for automatic send buffer management
Returns:
File descriptor of connected socket.

Definition at line 358 of file TCPConnect.cc.


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