sys/common/recv.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 1990 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/errno.h>

extern int  errno;

#define N_AGAIN 11

int recv(s, buf, len, flags)
int s;
char    *buf;
int len, flags;
{
    int a;
    if ((a = _recv(s, buf, len, flags)) == -1) {
        if (errno == N_AGAIN)
            errno = EWOULDBLOCK;
        else
            maperror(errno);
    }
    return(a);
}


int recvfrom(s, buf, len, flags, from, fromlen)
int s;
char    *buf;
int len, flags;
struct sockaddr *from;
int *fromlen;
{
    int a;
    if ((a = _recvfrom(s, buf, len, flags, from, fromlen)) == -1) {
        if (errno == N_AGAIN)
            errno = EWOULDBLOCK;
        else
            maperror(errno);
    }
    return(a);
}


int recvmsg(s, msg, flags)
int s;
struct msghdr *msg;
int flags;
{
    int a;
    if ((a = _recvmsg(s, msg, flags)) == -1) {
        if (errno == N_AGAIN)
            errno = EWOULDBLOCK;
        else
            maperror(errno);
    }
    return(a);
}