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/* libc/sys/linux/io.c - Basic input/output system calls */

/* Written 2000 by Werner Almesberger */

#define __KERNEL_PROTOTYPES

#include <stdarg.h>

#include <unistd.h>

#include <fcntl.h>

#include <sys/types.h>

#include <sys/uio.h>

#include <sys/stat.h>

#include <sys/ioctl.h>

#include <poll.h>

#include <machine/syscall.h>

#define __NR___ioctl __NR_ioctl

#define __NR___flock __NR_flock

#define __NR___mknod __NR_mknod

_syscall3(ssize_t,read,int,fd,void *,buf,size_t,count)

_syscall3(ssize_t,write,int,fd,const void *,buf,size_t,count)

_syscall3(int,open,const char *,file,int,flag,mode_t,mode)

_syscall1(int,close,int,fd)

_syscall3(off_t,lseek,int,fd,off_t,offset,int,count)

_syscall0(int,sync)

_syscall1(int,dup,int,fd)

_syscall2(int,dup2,int,oldfd,int,newfd)

_syscall3(int,fcntl,int,fd,int,cmd,long,arg)

_syscall1(int,fdatasync,int,fd)

_syscall1(int,fsync,int,fd)

_syscall3(int,poll,struct pollfd *,fds,nfds_t,nfds,int,timeout)

#if !defined(_ELIX_LEVEL) || _ELIX_LEVEL >= 2

_syscall3(ssize_t,readv,int,fd,const struct iovec *,vec,int,count)

_syscall3(ssize_t,writev,int,fd,const struct iovec *,buf,int,count)

#endif

#if !defined(_ELIX_LEVEL) || _ELIX_LEVEL >= 4

_syscall2(int,ftruncate,int,fd,off_t,len)

_syscall2(int,truncate,const char *,path,off_t,len)

#endif

static _syscall3(int,__ioctl,int,fd,int,request,void *,arg)

int ioctl(int fd,int request,...)

{

    va_list ap;

    int res;

    va_start(ap,request);

    res = __ioctl(fd,request,va_arg(ap,void *));

    va_end(ap);

    return res;

}

static _syscall2(long,__flock,unsigned int,fd,unsigned int,cmd)

int flock(int fd,int operation)

{

    return __flock(fd,operation);

}

#if !defined(_ELIX_LEVEL) || _ELIX_LEVEL >= 3

static _syscall3(int,__mknod,const char *,path,mode_t,mode,dev_t,dev)

int mkfifo(const char *path, mode_t mode)

{

   dev_t dev = 0;

   return __mknod(path, mode | S_IFIFO, dev);

}

#endif

weak_alias(__libc_close,__close);

weak_alias(__libc_fcntl,__fcntl);

weak_alias(__libc_lseek,__lseek);

weak_alias(__libc_open,__open);

weak_alias(__libc_read,__read);

weak_alias(__libc_write,__write);

weak_alias(__libc_poll,__poll);