recho(2) - Linux man page
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.