Subversion Repositories openrisc

//==========================================================================
//
//      lib/read.c
//
//      read() system call
//
//==========================================================================
// ####BSDALTCOPYRIGHTBEGIN####                                             
// -------------------------------------------                              
// Portions of this software may have been derived from OpenBSD             
// or other sources, and if so are covered by the appropriate copyright     
// and license included herein.                                             
// -------------------------------------------                              
// ####BSDALTCOPYRIGHTEND####                                               
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    gthomas
// Contributors: gthomas
// Date:         2000-01-10
// Purpose:      
// Description:  
//              
//
//####DESCRIPTIONEND####
//
//==========================================================================
 
 
#include <sys/param.h>
#include <cyg/io/file.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
 
#include <sys/syscallargs.h>
 
int 
read(int fd, void *buf, size_t len)
{
    struct sys_read_args args;
    int res, error;
    SYSCALLARG(args,fd) = fd;
    SYSCALLARG(args,buf) = buf;
    SYSCALLARG(args,nbyte) = len;
    error = sys_read(&args, &res);
    if (error) {
        errno = error;
        return -1;
    } else {
        return res;
    }
}