cb_util.c

/*-
 * Copyright (c) 2011-2013 Juan Romero Pardines.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <errno.h>
 
#include "xbps_api_impl.h"
 
#ifdef __clang__
#pragma clang diagnostic ignored "-Wformat-nonliteral"
#endif
 
void HIDDEN
xbps_set_cb_fetch(struct xbps_handle *xhp,
                  off_t file_size,
                  off_t file_offset,
                  off_t file_dloaded,
                  const char *file_name,
                  bool cb_start,
                  bool cb_update,
                  bool cb_end)
{
        struct xbps_fetch_cb_data xfcd;
 
        if (xhp->fetch_cb == NULL)
                return;
 
        xfcd.xhp = xhp;
        xfcd.file_size = file_size;
        xfcd.file_offset = file_offset;
        xfcd.file_dloaded = file_dloaded;
        xfcd.file_name = file_name;
        xfcd.cb_start = cb_start;
        xfcd.cb_update = cb_update;
        xfcd.cb_end = cb_end;
        (*xhp->fetch_cb)(&xfcd, xhp->fetch_cb_data);
}
 
int HIDDEN
xbps_set_cb_state(struct xbps_handle *xhp,
                  xbps_state_t state,
                  int err,
                  const char *arg,
                  const char *fmt,
                  ...)
{
        struct xbps_state_cb_data xscd;
        char *buf = NULL;
        va_list va;
        int retval;
 
        if (xhp->state_cb == NULL)
                return 0;
 
        xscd.xhp = xhp;
        xscd.state = state;
        xscd.err = err;
        xscd.arg = arg;
        if (fmt != NULL) {
                va_start(va, fmt);
                retval = vasprintf(&buf, fmt, va);
                va_end(va);
                if (retval <= 0)
                        xscd.desc = NULL;
                else
                        xscd.desc = buf;
        }
        retval = (*xhp->state_cb)(&xscd, xhp->state_cb_data);
        if (buf != NULL)
                free(buf);
 
        return retval;
}