RECHO(2)

NAME
recho - Send messages to LAM echo server.

SYNOPSIS

int recho (int node, char *src_msg, char *dest_msg, int length);

ARGUMENTS

node
    location of echo service

src_msg
    outgoing message

dest_msg
    incoming echo message

length
    of both message buffers

DESCRIPTION
The echo server returns any message that it receives to the sender. It is a confidence testing service for the LAM network.

The message length must not exceed the maximum network message length MAXNMSGLEN, defined in <net.h> and factory set to 8192 bytes.

RETURN VALUE
Upon successful completion, the number of bytes echoed is returned. If an error occurred, -1 is returned and the global variable errno is set to indicate the error.

ERRORS

EMSGLEN
    The message length exceeds the maximum message length.

SEE ALSO
tping(1)