20d78d563e
scheme_write(). The second time is immediately before we call the format's write function. The first call is needed to have the scheme know the right image size. The second call is needed to compensate for the scheme adjusting the size while writing.
92 lines
2.3 KiB
C
92 lines
2.3 KiB
C
/*-
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* Copyright (c) 2014 Juniper Networks, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/linker_set.h>
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#include <sys/queue.h>
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#include <sys/stat.h>
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#include <err.h>
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#include <errno.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "image.h"
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#include "format.h"
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#include "mkimg.h"
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static struct mkimg_format *format;
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int
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format_resize(lba_t end)
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{
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if (format == NULL)
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return (ENOSYS);
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return (format->resize(end));
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}
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int
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format_select(const char *spec)
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{
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struct mkimg_format *f, **iter;
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SET_FOREACH(iter, formats) {
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f = *iter;
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if (strcasecmp(spec, f->name) == 0) {
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format = f;
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return (0);
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}
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}
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return (EINVAL);
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}
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struct mkimg_format *
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format_selected(void)
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{
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return (format);
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}
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int
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format_write(int fd)
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{
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lba_t size;
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int error;
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if (format == NULL)
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return (ENOSYS);
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size = image_get_size();
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error = format->resize(size);
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if (!error)
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error = format->write(fd);
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return (error);
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}
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