common/bsd/readv.c

#ifndef LINT
static const char rcsid[] = "$Id: readv.c,v 1.2 2005/04/27 04:56:11 sra Exp $";
#endif

#include "port_before.h"

#include <sys/types.h>
#include <sys/uio.h>
#include <sys/stat.h>
#include <sys/socket.h>

#include "port_after.h"

#ifndef NEED_READV
int __bindcompat_readv;
#else

int
__readv(fd, vp, vpcount)
    int fd;
    const struct iovec *vp;
    int vpcount;
{
    int count = 0;

    while (vpcount-- > 0) {
        int bytes = read(fd, vp->iov_base, vp->iov_len);

        if (bytes < 0)
            return (-1);
        count += bytes;
        if (bytes != vp->iov_len)
            break;
        vp++;
    }
    return (count);
}
#endif /* NEED_READV */
/*! \file */