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Sourcecode: fhist version File versions

private.c

/*
 *    fhist - file history and comparison tools
 *    Copyright (C) 2000, 2002 Peter Miller;
 *    All rights reserved.
 *
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 * MANIFEST: functions for manipulating input streams
 */

#include <input/private.h>
#include <mem.h>


input_ty *
input_new(input_vtbl_ty *vptr)
{
    input_ty        *result;

    result = mem_alloc(vptr->size);
    result->vptr = vptr;
    result->pushback_buf = 0;
    result->pushback_len = 0;
    result->pushback_max = 0;
    return result;
}


long
input_generic_read(input_ty *fp, void *data_v, long len)
{
    char            *data;
    long            result;
    int             c;

    data = data_v;
    for (result = 0; result < len; ++result)
    {
      c = fp->vptr->get(fp);
      if (c < 0)
          break;
      *data++ = c;
    }
    return result;
}

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