net_common.c

/*
 * net_common.c
 * $Id: net_common.c,v 1.3 2007-05-12 20:17:15 bobi Exp $
 *
 * Copyright 2004 Bobi B., w1zard0f07@yahoo.com
 *
 * This file is part of hdl_dump.
 *
 * hdl_dump is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * hdl_dump is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with hdl_dump; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#if defined(_BUILD_WIN32)
#if defined(_MSC_VER) && defined(_WIN32)
#include <winsock2.h> /* Microsoft Visual C/C++ compiler */
#else
#include <winsock.h> /* GNU C/C++ compiler */
#endif
#include <windows.h>
#include <sys/types.h>
#elif defined(_BUILD_UNIX)
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#endif
#include <string.h>
#include "byteseq.h"
#include "net_common.h"
#include "retcodes.h"


/**************************************************************/
int recv_exact(int s,
               void *buf,
               u_int32_t bytes,
               int flags)
{
    ssize_t total = 0, result = 1;
    while (bytes > 0 && result > 0) {
        result = recv(s, buf, bytes, flags);
        if (result > 0) {
            buf = (char *)buf + result;
            total += result;
            bytes -= result;
        }
    }
    return ((int)(result >= 0 ? total : result));
}


/**************************************************************/
int send_exact(int s,
               const void *buf,
               u_int32_t bytes,
               int flags)
{
    ssize_t total = 0, result = 1;
    while (bytes > 0 && result > 0) {
        result = send(s, buf, bytes, flags);
        if (result > 0) {
            buf = (char *)buf + result;
            total += result;
            bytes -= result;
        }
    }
    return ((int)(result >= 0 ? total : result));
}