netwrite(3) send a message on a socket

SYNOPSIS

#include "net.h"

int netwrite (int s, char *buf, int nbytes);

ssize_t netwrite_timeout (int s, void *buf, size_t nbytes, int timeout);

DESCRIPTION

netwrite sends a message on a socket.

RETURN VALUE

This routine returns the number of bytes if the operation was successful, 0 if the connection was closed by the remote end or -1 if the operation failed. In the latter case, serrno is set appropriately.

ERRORS

EINTR
The function was interrupted by a signal.
EBADF
s is not a valid descriptor.
EAGAIN
The socket is non-blocking and there is no space available in the system buffers for the message.
EFAULT
buf is not a valid pointer.
EINVAL
nbytes is negative or zero.
ENOTSOCK
s is not a socket.
SECONNDROP
Connection closed by remote end.
SETIMEDOUT
Timed out.

AUTHOR

LCG Grid Deployment Team