Subversion Repositories or1k

/* Reentrant versions of write system call. */

#include <reent.h>

#include <unistd.h>

#include <_syslist.h>

/* Some targets provides their own versions of this functions.  Those

   targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS.  */

#ifdef _REENT_ONLY

#ifndef REENTRANT_SYSCALLS_PROVIDED

#define REENTRANT_SYSCALLS_PROVIDED

#endif

#endif

#ifndef REENTRANT_SYSCALLS_PROVIDED

/* We use the errno variable used by the system dependent layer.  */

#undef errno

extern int errno;

/*

FUNCTION

        <<_write_r>>---Reentrant version of write

INDEX

        _write_r

ANSI_SYNOPSIS

        #include <reent.h>

        long _write_r(struct _reent *<[ptr]>,

                      int <[fd]>, const void *<[buf]>, size_t <[cnt]>);

TRAD_SYNOPSIS

        #include <reent.h>

        long _write_r(<[ptr]>, <[fd]>, <[buf]>, <[cnt]>)

        struct _reent *<[ptr]>;

        int <[fd]>;

        char *<[buf]>;

        size_t <[cnt]>;

DESCRIPTION

        This is a reentrant version of <<write>>.  It

        takes a pointer to the global data block, which holds

        <<errno>>.

*/

long

_write_r (ptr, fd, buf, cnt)

     struct _reent *ptr;

     int fd;

     _CONST _PTR buf;

     size_t cnt;

{

  long ret;

  errno = 0;

  if ((ret = _write (fd, buf, cnt)) == -1 && errno != 0)

    ptr->_errno = errno;

  return ret;

}

#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */