attribute_compat_text_section
_IO_old_file_attach (_IO_FILE *fp, int fd)
{
if (_IO_file_is_open (fp))
return NULL;
fp->_fileno = fd;
fp->_flags &= ~(_IO_NO_READS+_IO_NO_WRITES);
fp->_flags |= _IO_DELETE_DONT_CLOSE;
/* Get the current position of the file. */
/* We have to do that since that may be junk. */
fp->_old_offset = _IO_pos_BAD;
if (_IO_SEEKOFF (fp, (_IO_off_t)0, _IO_seek_cur, _IOS_INPUT|_IOS_OUTPUT)
== _IO_pos_BAD && errno != ESPIPE)
return NULL;
return fp;
}
attribute_compat_text_section
_IO_old_file_fopen (_IO_FILE *fp, const char *filename, const char *mode)
{
int oflags = 0, omode;
int read_write, fdesc;
int oprot = 0666;
if (_IO_file_is_open (fp))
return 0;
switch (*mode++)
{
case 'r':
omode = O_RDONLY;
read_write = _IO_NO_WRITES;
break;
case 'w':
omode = O_WRONLY;
oflags = O_CREAT|O_TRUNC;
read_write = _IO_NO_READS;
break;
case 'a':
omode = O_WRONLY;
oflags = O_CREAT|O_APPEND;
read_write = _IO_NO_READS|_IO_IS_APPENDING;
break;
default:
__set_errno (EINVAL);
return NULL;
}
if (mode[0] == '+' || (mode[0] == 'b' && mode[1] == '+'))
{
omode = O_RDWR;
read_write &= _IO_IS_APPENDING;
}
fdesc = open (filename, omode|oflags, oprot);
if (fdesc < 0)
return NULL;
fp->_fileno = fdesc;
_IO_mask_flags (fp, read_write,_IO_NO_READS+_IO_NO_WRITES+_IO_IS_APPENDING);
if (read_write & _IO_IS_APPENDING)
if (_IO_SEEKOFF (fp, (_IO_off_t)0, _IO_seek_end, _IOS_INPUT|_IOS_OUTPUT)
== _IO_pos_BAD && errno != ESPIPE)
return NULL;
_IO_link_in ((struct _IO_FILE_plus *) fp);
return fp;
}
_IO_off64_t
_IO_seekpos_unlocked (_IO_FILE *fp, _IO_off64_t pos, int mode)
{
/* If we have a backup buffer, get rid of it, since the __seekoff
callback may not know to do the right thing about it.
This may be over-kill, but it'll do for now. TODO */
if (_IO_fwide (fp, 0) <= 0)
{
if (_IO_have_backup (fp))
_IO_free_backup_area (fp);
}
else
{
if (_IO_have_wbackup (fp))
_IO_free_wbackup_area (fp);
}
return _IO_SEEKOFF (fp, pos, 0, mode);
}
_IO_off64_t
_IO_default_seekpos (_IO_FILE *fp, _IO_off64_t pos, int mode)
{
return _IO_SEEKOFF (fp, pos, 0, mode);
}
