/* $Id$ */

/*
 * This file is part of ivcall.
 *
 * ivcall 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.
 *
 * ivcall 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 ivcall; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <unistd.h>
#include <termios.h>
#include <string.h>

#include "util.h"

ssize_t loop_read (int FILEDES, const void *BUFFER, size_t SIZE) {
    int c = 0;
    
    while (SIZE > 0) {
        int r;

        if ((r = read(FILEDES, (void*) BUFFER, SIZE)) <= 0)
            break;

        SIZE -= r;
        c += r;
        BUFFER = ((void*) (((char*) BUFFER) + r));
    }

    return c;
}

ssize_t loop_write(int FILEDES, const void *BUFFER, size_t SIZE) {
    int c = 0;
    
    while (SIZE > 0) {
        int r;

        if ((r = write(FILEDES, BUFFER, SIZE)) <= 0)
            break;

        SIZE -= r;
        c += r;
        BUFFER = ((void*) (((char*) BUFFER) + r));
    }

    return c;
}

/* Returns a pointer to the filename in a path */
char *get_filename(char *f) {
  char *i = strrchr(f, '/');
  return i ? i+1 : f;
}