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/*
* lib/krb5/os/net_write.c
*
* Copyright 1987, 1988, 1990 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*/
#define NEED_LOWLEVEL_IO
#define NEED_SOCKETS
#include "k5-int.h"
/*
* krb5_net_write() writes "len" bytes from "buf" to the file
* descriptor "fd". It returns the number of bytes written or
* a write() error. (The calling interface is identical to
* write(2).)
*
* XXX must not use non-blocking I/O
*/
int
krb5_net_write(context, fd, buf, len)
krb5_context context;
int fd;
register const char *buf;
int len;
{
int cc;
register int wrlen = len;
do {
cc = SOCKET_WRITE((SOCKET)fd, buf, wrlen);
if (cc < 0) {
if (SOCKET_ERRNO == SOCKET_EINTR)
continue;
#if defined(_MSDOS) || (_WIN32)
/* XXX this interface sucks! */
errno = SOCKET_ERRNO;
#endif
return(cc);
}
else {
buf += cc;
wrlen -= cc;
}
} while (wrlen > 0);
return(len);
}
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